Research on networked IT infrastructures is challenged by the complexity
of the software and hardware architectures involved, including the increasing complex interaction of the involved protocols, complex
software stacks with millions lines of code, and the growing hardware
complexity that achieves performance advances by sophisticated
architectures.
Experimental research is essential...
Mathematical models and cost-effectiveness analyses have been playing a major role when UK policymakers consider changes in the UK national vaccination programmes. As an example, I would like to introduce my mathematical modelling work on paediatric pertussis vaccination programmes in the UK. Pertussis, also known as whooping cough, had been a leading cause of childhood morbidity and mortality...
Dynamic power cable is a key component in development of large scale floating offshore wind farm. In order to ensure cost-effective operation of the power able, the configurations of the inter-array and the export cable need to be optimized through hydrodynamic response analysis together with local structural response analysis of the power cable. Failure modes of the power cable from...
In this talk, we will delve into the definitions and fundamental philosophical concepts of Web3, an innovative decentralized internet that promotes "less trust, more truth." We will explore the numerous advantages that Web3 offers in contrast to Web2, while also addressing its limitations. Furthermore, we will provide a basic overview of blockchain technology, which serves as a key catalyst...
The maritime industry is crucial for global freight transportation but heavily relies on fossil fuels, leading to significant carbon emissions. While exploring zero-emission power sources is important, there is an urgent need for feasible technologies to reduce emissions in the short term. Carbon capture and storage technology provides a potential decarbonization solution for existing fossil...
Zero Knowledge is the talk of the town. But most people are still wondering what ZK is and how it’s actually used. And will this be the tech that opens web3 to the masses? Come to my talk!
Escherichia coli is a major constituent of the gut microbiota of mammals. Despite this frequent symbiosis, some strains of E. coli are pathogenic. According to the World Health Organization (WHO), foodborne Shiga toxin-producing Escherichia coli (STEC) caused more than 1,000,000 illnesses, leading to more than 100 deaths and approximately 13,000 disability-adjusted life years (DALYs) in 2020....
The shipping sector plays a vital role in global trade, with 80% of the goods being transported via the ocean [1]. Two-stroke marine diesel engines are the most preferred propulsion system in the marine sector because they offer superior fuel economy and high reliability [2]. However, the combustion of fossil fuels in these engines produces harmful emissions [3]. The scavenge air flow process...
In the digital realm, the antiquated username/password authentication model has plagued users with numerous security risks and limitations. However, a revolutionary solution has emerged in the form of decentralized identity and verifiable credentials. This talk will delve into the fundamentals of this groundbreaking technology, showcasing its potential to solve the challenges posed by the...
Hydrogen from renewable energy (green hydrogen) or fossil fuel with carbon capture (blue hydrogen) will be a key enabler for decarbonization. Even though the production of hydrogen will be less centralized than fossil fuel, there will still be local imbalance of supply and demand in renewable energy. Such imbalance can be resolved by transportation of liquid hydrogen (LH$_2$) on a large-scale...
Currently, our society faces an urgent need for early response technologies to address chemical, biological, radiological, and nuclear (CBRN) threats that may arise in various scenarios, including terrorism, disasters, and attacks. To tackle these challenges, the Next-Generation Biodefense Research Lab (NGBRL) was established in 2019 at the Korea Institute of Bioscience and Biotechnology.
The...
Self-operating transportation has been around for many years, but lately the speed of development has increased due to technological breakthroughs within several fields. The maritime domain has also become part of this and the aim to have autonomous vessel sailing, in commercial operations is coming closer. Together with the parallel development on land and in the air, the whole transportation...
The emergence of image sensors has revolutionized the world of technology. Over the past few decades, significant advancements in image sensor technology have brought about state-of-the-art imagers that have reached the theoretical limits of classical photography. Furthermore, with the evolution of information processing and hardware development, the usage of image sensors has expanded to...
Be it recreation, medicine or the judicial system, state-of-the-art machine-learning (SOTA) methods, colloquially called Artificial Intelligence (AI), permeate our daily lives. Increasingly complex AI systems now conquer new sophisticated tasks on a weekly basis, yet our conceptual understanding of how these SOTA methods work is not keeping pace with their ever-improving abilities [1].
While...
The need for comprehensive circular economy solutions has never been as high as today and modern challenges require modern solutions. Newest e-scrap processing plants are engineered to be more local and independent complexes applying state of the art technology with closed loop systems in order to allow them to be efficiently integrated to the surrounding society. In this presentation, some of...
Computational fluid dynamics (CFD) is widely employed in various disciplines to investigate flow fields, i.g., computing the drag coefficient of a road vehicle [1] or analyzing respiratory flows [2]. However, depending on the complexity of a problem or the desired accuracy, employing CFD simulations can be time consuming and costly. Recently, machine learning (ML) techniques have shown great...
In the last few decades, Quantum Computing (QC) has witnessed remarkable progress as an alternative to traditional classical computing thanks to its potential advantages in terms of representational power and computing time. This leads to extending its boundary to Quantum Machine Learning (QML), with the expectation of improving the current Machine Learning (ML) techniques to learn the hidden...
The International Maritime Organization (IMO) is currently discussing regulations to reduce greenhouse gas (GHG) emissions from ships, leading to expectations of a significant shift towards more environmentally-friendly practices in the maritime sector. In 2018, the IMO announced its initial strategy to reduce GHG emissions from ships by at least 50% by 2050 compared to 2008, with a revised...
In this paper, a display system with a foveated rendering is proposed to reduce a high data rate for virtual reality (VR) applications. The proposed display system implements an encoding logic and a decoding logic in FPGA and ASIC with OLED-on-silicon (OLEDoS) microdisplay, respectively, by employing the proposed data protocol based on the focal point. A visual field map for the encoding logic...
Strong demand for the usage of renewable energy in all industrial sectors has brought attention to fuel-free energy such as solar energy. Hydro and wind power occupy more than two third of the renewable electricity market, but solar power has the highest growth rate among all sustainable energy.
Although Nordic and Baltic countries consume more than half of the energy produced by renewable...
Recently, various researches are being conducted on the production of green hydrogen, e-ammonia and e-methanol through offshore renewable energy centered on offshore wind power worldwide. In particular, as the challenging goal of 0% ship carbon emissions by 2050 is expected to be adopted at the IMO MEPC 80th meeting, research is underway on the offshore supply chain to effectively supply...
As our world undergoes digital transformation, the importance of secure and autonomous systems in emergency response cannot be overstated. The VALKYRIES project, funded by Horizon 2020, is dedicated to enhancing EU disaster resilience by developing a methodology for standardization and certification harmonization. This initiative project utilizes emerging technologies, procedures, and...
A solid oxide fuel cell (SOFC) is an energy device that converts the chemical energy of hydrogen and oxygen directly into electrical energy using a single cell composed of an oxide-based anode/electrolyte/cathode. It has the characteristic of operating in the highest temperature range among various existing fuel cells [1].
Many researchers in the field of SOFC are currently focusing their...
New and renewable energy is rapidly expanding according to global energy conversion, and in the field of wind power, not only fixed but also floating offshore wind power is being developed. Recently, various floating platforms capable of mounting a 15MW class offshore wind turbine have been developed, and these platforms are being developed as a floating offshore wind farm is promoted in...
The metaverse platform creates computer-simulated objects in the virtual or real worlds, and it provides a digital environment in which users can interact with them and other users. Technologies for extended reality (XR) interactions allow users to be more immersed in activities in the digital environment and improve their user experiences (UX). First, this talk looks at the latest research on...
Carbon neutrality is recognized as a global trend and a direction that all mankind should pursue. In urban buildings, zero-energy buildings are also popular due to energy efficiency for carbon neutrality and the introduction of new and renewable energy. Rooftop smart farm that can be installed on the roof of a building to reduce building energy, secure crop productivity through urban...
Massive growth in global GDP brings big opportunities to the marine industry, and world trade continues to rise in conformity with economic expansion. Maritime is at a historic crossroads on the way towards digitalisation, while also facing major sustainability and decarbonisation changes. Growth in the world economy results in concern for environmental impact due to marine activities. New...
Advanced fabrication technologies enable breakthroughs in electronic devices including biomedical applications and energy devices.[1-3] Emerging technologies include digitally-driven additive manufacturing which have demonstrated excellent capabilities in patterning-free low cost processes.
In this talk, a novel digitally driven direct-write method will be described and how this technology...
The clinical relevance of de novo structural variations (dnSVs) has become manifest, but dnSVs are often overlooked during routine genetic screening. To comprehensively assess their rate, characteristics, and clinical relevance, we analysed the whole-genome-sequencing data of 12,575 families with 13,703 probands with rare genetic diseases in the U.K. 100,000 Genomes Project. We identified...
This theme focuses on the reconstruction process of the Kaiser Wilhelm Memorial Church in “Breitscheidplatz”, which was located in the center of West-Berlin. After the World War II, there have been extensive discussion between intellectual regarding the traces of war, namely ruins of urban architectural spaces or fragment of significant buildings in the city.
About the reconstruction of the...
Introduction - Opening Ceremony & Introduction - 15 min.
KOFWST: Prof. Mihye Kim
EKWSEA: Dr. Hyong Sil Cho
VeKNI e.V. Woman : Dr. Seonhi Ro
Metallurgical slags and oxidic side streams from steel and non-ferrous metals production are potential sources for recovering valuable metals. Due to large volumes of slags and side streams, it is of economic interest to develop methods to recover the valuable metals from these streams. In copper and nickel smelting, valuable metals such as Cu, Ni and Co, may be either entrained as metal alloy...
Hydrogen is a promising alternative fuel for marine applications with the potential to reduce greenhouse gas emissions. Hydrogen, whether in gaseous or liquid form, presents unique properties that require careful consideration for marine environments. The flammability and fast dispersion of gaseous hydrogen pose challenges for detection and suppression of combustion on marine vessels. Liquid...
The global outbreak of SARS-CoV-2 necessitates the rapid development of new therapies against COVID-19 infection. Here, we present the identification of 200 approved drugs, appropriate for repurposing against COVID-19. We constructed a SARS-CoV-2-induced protein (SIP) network, based on disease signatures defined by COVID-19 multi-omic datasets, and cross-examined these pathways against...
The 1.5 °C target is the goal of the Paris Agreement, which calls for countries to take concerted climate action to reduce greenhouse gas emissions in order to limit global warming. For the global warming to stay below 1.5 °C, the world needs to transform to zero emissions by 2050. Reaching this global climate target requires significant decrease in CO2 emissions by increasing the use of...
Having pursued my studies in the United States twenty years ago, I enthusiastically began my career as a professor in Korea. However, during my 10 years of living in the United States as a Korean, I did not deeply contemplate the issues surrounding minority communities, whereas in my career as a professor in Korea, I found myself earnestly concerned about these matters.
Through this...
Artificial intelligence (AI) brings about significant advancements in various research areas such as visual perception, natural language processing, and autonomous vehicles. The traditional von Neumann computing architecture, which separates processing and memory units, is facing limitations due to the increasing data transfer requirements in AI applications. The fundamental operations of...
Munich is expected to continue to grow both now and in the future, and is suffering from a serious housing shortage at the same time as a growing population. The post-war reconstruction work has been closed, and the sites in Munich's residential district have already been almost completely developed and there is a way to solve these problems, once increasing the density of the city....
Some say that life is like a movie. Some will make great hero movies, some great human dramas, some great road movies, some of other genre.
In making our lives into movies, we all face moments of calling decisions. There is no absolute criteria to judge a decision good or bad, but I would like take good influence power to people and our environments a criteria. Although it sound...
As decarbonization has become an important issue, traditional marine fuel is being replaced with cryogenic liquids, such as LNG, LPG, and LH2. Cryogenic liquids inevitably generate boil-off gas (BOG) due to the heat caused by a significant temperature difference from the atmosphere, which increases the internal pressure. Hence, BOG handling equipment is required to manage the BOG and maintain...
Non-metallic inclusions play an important role in determining the quality of steel products; Thus there have been various researches done in order to study such inclusions. Adequate knowledge about the behavior of nonmetallic inclusions in molten steel and during the solidification stage bas been discovered. However, the effect of non-metallic inclusions on the quality of steel products is...
spatialUM proposes to generate valuable sequencing data in relatively neglected rare cancer and further develop methods that integrate spatial omics data with computer vision/AI and molecular analysis to identify targets for cancer using a combination of single cell RNA-seq (scRNA-seq) and spatial transcriptomics (STx) data. The project will be initially applied to a well-defined and...
Panel discussion: Challenges in the Career & How to Overcome Them - 45 min.
Discussion chair - Prof. Mihye Kim
- Mi-Hyun Park, Ph. D. student at Technical Univ. of Munich
- Dr. Suhyun Cha , HAWE hydraulik “ in Germany
- Dr. Seonhi Ro, Ford, Germany
- Prof. Jacob Lee, Hallym Univ.
- Sooyoung Chang, Postech
We propose MEMS antenna with user hand grip sensing functionality for 5G mmWave phased antenna system. The device is called “SENTENNA” which stands for SENsor and anTENNA. The SENTENNA is fabricated on two glass substrates. The top metal patch fabricated on the glass acts as a radiation patch of antenna and an electrode of capacitance sensing simultaneously. The proximity-coupled microstrip...
Quo (ante). Urban Qualities in the cities.
A Study on the Diversity of urban Qualities in the cities
Centuriatio
Diversity of urban Qualities in European Cities
Humans have built cities, and many cities have disappeared over the centuries, but many remain. Research on the sustainability of cities today should probably begin with these existing cities. Namely, it is necessary...
The current R&D trends in the field of biotechnology are receiving attention for the use of artificial intelligence (AI). The government is promoting the digital transformation of the biotechnology industry through its Digital Bio-Innovation Strategy, with the aim of driving innovation in all industries based on the biotechnology industry. Efforts are being made to create and provide...
In the domestic metal powder manufacturing industry, there is an ongoing effort to promote the transition to the next-generation smart factory by the digitization of tacit knowledge using artificial intelligence (AI). This successful initiative enables one company to become global competitiveness in high-efficiency metal powder production. Although the previous AI-based works in our laboratory...
The safety analysis in maritime industry relies on well-known and established methods. The guidelines for Formal Safety Assessment (FSA) by IMO recommends using failure mode and effect analysis (FMEA), hazard and operability studies (HAZOP), fault tree analysis (FTA), event tree analysis (ETA), and so on. The guidelines for the risk analysis of autonomous ships by the Norwegian Maritime...
Diversity, equity, and inclusion (DE&I) has become a "must-implement" strategy for boosting innovation and creativity, market competitiveness. In spite of all the initiatives to promote DE&I, males outnumber women in STEM fields in both Europe and Korea, and gender bias and male-dominant cultures still exist in the workplace.
Until now, many mentoring programs have required additional...
With the tremendous increase of hydrogen production via water electrolysis technology, the development of a recycling process for valuable raw materials is emerging as an important issue for a functional circular economy. Since the size range of the active materials used in polymer electrolyte membrane (PEM) water electrolyzers is well below 100 µm, the development of mechanical separation...
Micro-composites comprising conductive fillers dispersed within polymer matrices have been attracting attention as a versatile stretchable electrode material in the wearable sensor field (1). PDMS and MWCNT show great potential as the fundamental materials for stretchable electrodes, especially in operating environments that are subjected to cyclic loads (2). This work aims to examine the...
Round Table Discussion: Allyship and related cases - 30 min.
- Prof. Ji-Yeoun Lee, Eulji Univ.
- Prof. Young Sook Lee , Dongkuk Univ.
- Prof. Bong Hee Kang, Chungbuk National Univ.
- Prof. Kyoung Soon Hwang, Chungbuk National Univ.
Panel discussion - 30 min.
- Dr. Seonhi Ro, Ford, Germany
...
Many WWTPs utilize anaerobic digestion (AD) for primary sludge and secondary sludge because of their efficiency in reducing sludge and recovering energy from it. It is challenging to liberate biodegradable carbohydrates and organic compounds from secondary sludge due to the presence of sludge cells and extracellular polymeric substances (EPS) (Bougrier et al., 2005). A lower biodegradability...
The necessity of managing stress levels is becoming increasingly apparent as the world suffers from different kinds of stress including the extent of pandemic, the corona virus disease 2019 (COVID-19). Cortisol, a clinically confirmed stress hormone related to depression and anxiety, affects individual mentally and physically. However, current cortisol monitoring methods require expert...
Waste valorization is mandatory to develop and consolidate a circular bioeconomy. It is necessary to search for appropriate processes to add value to different wastes by utilizing them as feedstocks to provide energy,chemicals, and materials. For instance, hydrothermal carbonization (HTC) is an alternative thermochemical process that has been suggested for waste valorization aiming at...
This talk will cover wireless sensor node and low-cost wearable wireless sensing technology for gas detection. Sensor designs use electromagnetic waves for detection, involving microwaves and optical technology. Sensor heads are fabricated using nanotechnology. Full prototype integration, sensor head design and results will be described. Microwave sensor design and implementation for...
As we navigate an era defined by the urgent need for sustainable and energy-efficient solutions, rechargeable energy storage systems, particularly batteries, have become an indisputable keystone. The successful evolution of such systems necessitates agile collaborations spanning universities, research institutes, and both public and industrial sectors.
In response to this need, the Korean...
Software is now an increasingly important part of the car. As ECU (Electronic Control Unit) hardware performance is getting better, the hundreds of ECUs in a traditional vehicle are reduced to dozens, and various features such as software updater via OTA (Over The Air) and fancy UI/UX are supported to satisfy customers. At the same time, the amount and complexity of software are increasing,...
Insecticide treated bed nets (ITNs) is still the main malaria control measure for the sub-Saharan region in Africa. A number of research in the past further showed the effectiveness of closed eaves, screened windows and doors in preventing mosquito intrusions into indoor spaces. However, the hot and humid climate makes the occupant difficult to remain under the bed net, mainly due to the...
This talk will provide an overview of the modelling and analysis that was undertaken in response to the global outbreak of MPOX in May 2022. The UK Health Security Agency (UKHSA) convened a modelling consortium comprising of both internal and external modellers and analysts to provide model based analysis to inform questioned posed by the National Incident Coordinating Committee within UKHSA....
The technology that has recently attracted the most attention for the industry's low-carbon energy transition is clean hydrogen production and utilization. In the case of Korea, if carbon dioxide generation is controlled to 4 kg or less when producing 1 kg of hydrogen, it will have the status of clean hydrogen. Legalizing a clean hydrogen production scheme requires strict carbon footprint...
EE6 - introduction
Here, K also means 'Korea' and 'knowledge'. The key content is about the strategic framework and implementation plans for the transfer and commercialization of public climate technology in the Republic of Korea. Korea is a representative country that has grown through science and technology. In particular, it was largely influenced by national and public research and development (R&D) in...
The field of battery research continually seeks to improve energy storage capabilities while addressing sustainability concerns. This applies in particular to the exploration and development of novel materials, such as the promising material group of MXenes. MXenes, known for their two-dimensional morphology, vast chemical composition range, and excellent electrical conductivity, require the...
Various technologies have been being developed to reduce greenhouse gas emissions from the petrochemical industry, such as the use of bionaphtha and the thermal decomposition of naphtha by electric joule heating. And, as one of the important technologies for carbon neutrality, CCU technology has also been considered as an important implementation method. However, in order to reduce greenhouse...
In 2019, more than 75.2% of Korea's total energy consumption (excluding energy consumption for raw materials and transportation) and 71% of greenhouse gas emissions in the industrial sector accounted for core facilities(boilers, combustors, industrial furnaces, dryers, heat pumps, and heat exchangers, etc.) consuming large amounts of heat energy is a situation that comes out of use. (Korea...
We investigate an optimal control problem of various epidemic models with uncertainty using stochastic differential equations, random differential equations, and agent-based models. We discuss deep reinforcement learning (RL), which combines RL with deep neural networks, as one method to solve the optimal control problem. The deep Q-network algorithm is introduced to approximate an...
Scientific knowledge of the world is objective knowledge that certain phenomenon can be explained so that it can be predicted.We will have a look at how we have gained scientific knowledge about the world that we live in, in the way through reverse engineering.
With the little pieces of the knowledge, we have devised many ways and built systems and machineries to achieve what we humans wish...
Burning candles at home emit small particles and gases that pollute indoor air. Exposure to fine particles in outdoor air has been convincingly linked to cardiovascular and respiratory events, while the associations with fine and ultrafine particles from candle burning remain unexplored. We examined the association between the use of candles and incident cardiovascular and respiratory events....
Climate change is already affecting the world, with extreme weather conditions such as drought, heat waves, heavy rain, floods, and landslides becoming more frequent, including in Europe. Other consequences of the rapidly changing climate include rising sea levels, ocean acidification, and biodiversity loss. Therefore, many countries set themselves up for carbon neutrality by 2050. Carbon...
As the International Maritime Organization (IMO) is gradually strengthening regulations on greenhouse gas emissions from ships, the shipping industry is considering Carbon Capture and Storage (CCS) technology as a mid-term decarbonization strategy. A representative CCS technology with high readiness and proven onshore performance is the amine absorption-based capture technology. However, its...
The COVID-19 pandemic that started in 2020 coincided with large changes in the epidemiology of many other infectious diseases. These changes were likely driven by the large-scale behavioural changes in populations around the world. This talk summarises empirical and modelling investigations on the way that the COVID-19 pandemic (and associated interventions) affected other infectiou diseases.
The core technology and issues of future mobility are technological advance of lithium battery and the expansion of hydrogen energy. This presentation introduces the technology development trend of oxide solid state lithium battery as next-generation battery and the hydrogen R&D trend in Korea to expand hydrogen energy economy. The first topic is the discussion of oxide-based solid state...
This study explores the effects of natural sounds, such as water sound and birdsong, on people's reactions to urban courtyards with and without the presence of sounds. A series of laboratory experiments were conducted in virtual reality (VR) environments. The first experiment investigated people's reactions to urban courtyards in terms of perceived pleasantness, perceived enclosure, and...
Following the publication of the IPCC's Sixth Assessment Report, it is recommended that future mitigation and adaptation reports to the UNFCCC and IPCC should be based on regional assessments using 'socio-economic scenarios'. In this regard, various Integrated Assessment Models (IAMs) are being developed, and the Integrated Assessment Model Consortium (IAMC) has been established to collaborate...
During a collaborative task, like carrying a sofa or a table togehter with a co-actor, it is common for individuals to coordinate their motor behavior in terms of space and time. Interestingly, coordination between partners can occur even without verbal communication, as they observe each other's movements and/or the movements of the object they are interacting with. The study aimed to examine...
Pseudocapacitance is a mechanism that describes Faradaic charge storage reactions with an electrical signature closely resembling electric double-layer capacitance, holding promise to combine high specific energy and power.[1] It has been observed for electrode materials with certain intrinsic structural features, such as wide interlayer galleries in Ti3C2Tx MXenes offering facile diffusion...
Room acoustics has been an active research field in building physics, which reflects the human race’s enthusiasm toward healthy and sustainable indoor acoustic environments. Particularly in acoustically important buildings, such as concert halls, room acoustics has been experimented with simulations and scale models in the design stage. Room acoustic simulations have been more accurate and...
Up to now, carbon capture researches and commercialisation projects have been focused mostly on fossil fuel power stations and industrial plants that feature single CO2 emission sources of very large scales. To achieve the net zero emission target, however, it is essential to curtail substantially the CO2 emission from all the CO2 emission sources regardless of their scales including maritime...
In the early days of the pandemic, there was a lack of information about COVID-19, and there were many variables and trial and error. However, as information about COVID-19 began to accumulate, the government began to analyze various data to create new policies, and began to develop policies based on mathematical modeling based on this accumulated data.
First, mathematical modeling was used...
In order to satisfy carbon neutrality in transportation sector, carbon-free gases such as hydrogen and ammonia should be considered as a fuel for an internal combustion engine in the near future. Hydrogen can be a gamechanger of greenhouse gas problem replacing existing fossil fuels. However, due to high reactivity, wide flammability limit and small minimum ignition energy of hydrogen, lots of...
Lithium-metal batteries (LMBs) are among the most promising next-generation energy storage systems. In such systems, the anode is composed of lithium (Li) metal, ideally originating from the cathode active material in order to avoid the initial presence of metallic lithium when assembling the cells (also referred to as “zero excess” LMBs). Generally, Li metal offers a high theoretical capacity...
Renewable energy and hydrogen energy are increasingly being utilized to address climate change. To utilize hydrogen energy, applications such as fuel cell-based mobility and power generation need to be expanded. Hydrogen electric vehicles, a representative application of fuel cells, were commercialized by Hyundai and Toyota in 2013 and 2014, but they are facing difficulties in expanding the...
In order to develop an evacuation simulation program that the fire safety manager of a building can easily utilize for effective evacuation and establish an appropriate evacuation plan in case of fire, it was tried to reflect the actual behavioral characteristics of the evacuees. To this end, a plan must be prepared to maximize the accuracy and completeness of the simulation program through...
Private climate financing play a pivotal role as emerging markets and developed economies seek to curb greenhouse gas emissions and contain climate change while coping with its effects.
Boosting private climate financing quickly is essential, Key solutions include adequate pricing of climate risks, innovative financing instruments, broadening the investor base, expanding the involvement of...
This paper introduces a novel agrivoltaic system designed to maximize crop yield. The proposed solution integrates two main components: a predictive model and an adaptive structure. The predictive model, built on algorithms, can forecast solar power generation and crop yield based on historical and real-time data inputs such as solar radiation, temperature, and crop-specific parameters. This...
The development and maintenance of built environments require continuous decision-making processes aimed at improving current conditions. By analyzing on- and off-site contexts, we have delivered outcomes of where and to what extent to develop, redevelop and refurbish built environments. With the continuous improvement of computational technologies such as geographic information systems and...
Industry-academia-research institutes in Korea and Germany established a dual Research & Business Development (R&BD) platform for two-way cooperation to develop leading technologies in the fields of Materials-Components-Equipment to commercialize the research and development outcomes, and to share business ecosystems for the growth of small but strong domestic companies from both sides so that...
This research presents a novel approach utilizing deep learning techniques to enhance the accuracy of indoor localization technology using UWB sensors, with the specific goal of developing an indoor autonomous driving system that can follow or move near humans, such as a human-following robot. Notably, unlike previous UWB devices that rely on CIR data, the latest UWB devices utilize the signal...
To significantly reduce greenhouse gas emissions, energy transition is highly demanded from carbon-based fossil fuel to clean fuel, hydrogen. How to store and transport hydrogen safely, easily, in large volumes, and for a long time in the upcoming hydrogen society is an important technical challenge. Liquid organic hydrogen carriers(LOHCs) are the key technology for storing and transporting...
Deep neural network techniques have improved various signal processing results in many areas. Medical imaging field is a representative area affected by the deep learning technology. MRI system and image reconstruction methods have been studied in KAIST since 1980. This talk briefly reviews the history of KAIST MRI research and introduces current progresses in MRI. Two-tesla MRI system, which...
Colloidal quantum dots (QDs)-based light-emitting diodes (QD-LEDs) has been actively researched due to the potential impacts to the display and lighting industry base on the unique properties of QDs itself such as size-dependent bandgap tune ability, narrow emission spectrum, and low-cost solution-based processing.
Introduction
Indiumphosphide (InP) based quantum dot (QDs) has been...
The presentation covers the current state of semiconductor optical sensors and applications, including case studies on sensor development through electrical and optical TCAD simulations. Various types of semiconductor optical sensors are becoming increasingly important in the IoT domain, especially in environmental, smart home & building, augmented reality, autonomous, wearable, and mobile...
For future space and energy applications, it is crucial that they can withstand high temperatures in (hyper)supersonic flows and high heat flux in nuclear fusion reactors. For instance, future hypersonic vehicles experience temperatures above 10,000 K at Mach number 20 due to viscous dissipation in the boundary layer [1]. Additionally, thermal requirements of high temperature components for...
Due to the combination of the advantageous properties of both ceramic materials, the material combination ZrO2/TiOx (titanium suboxides) offers interesting fields of application, e.g., for electrodes for the generation of cold plasmas, for cleaning or for the electrolytic splitting of water. ZrO2 contributes its mechanical strength and electrical insulation properties to the material...
In this paper, we aim to analyze how digital technologies can contribute to achieving carbon neutrality goals. We explore the ways in which digital technologies such as energy management systems, Internet of Things (IoT), artificial intelligence (AI), blockchain, and green computing can enable carbon emissions reduction and sustainable practices.
The paper begins with an introduction,...
The nasal cavity is one of the most important organs of the human body. Its various functionalities are essential for the well-being of the individual person. It is responsible for the sense of smell, supports degustation, and filters, tempers, and moistens the inhaled air to provide optimal conditions for the lung. Diseases of the nasal cavity
like chronic rhinosinusitis, septal deviation,...
In this era of decarbonization, green hydrogen production is a key technology for coping with intermittence of renewable energy and establishing a decentralized energy network. Against the existing studies, such as onshore and offshore platforms, we propose a new concept “nearshore green hydrogen production & liquefaction platform”. This platform has a few advantages over offshore or onshore...
Various efforts are being made to find scientific evidence on how the physical environment affects the human body and psychological state. This scientific level of research began in earnest at the end of the 20th century when it was revealed that the connection between the brain and the immune system was a crucial clue to maintaining health. Accordingly, the demand for evidence-based design...
Hybrid organic-inorganic perovskite photovoltaic has achieved unmatched improvemtnes of their power conversion efficiency in the last decade. Nevertheless, nonradiative recombination of charge carriers due to bulk and interface defects still reduces the open-circuit voltage and the efficiency of perovskite solar cells. Incorporating additive, process optimization and interface engineering are...
Domestic forests play an essential role in carbon absorption during carbon neutrality. Accordingly, projects to increase carbon absorption are continuously growing through managing and creating forests, preventing forest conversion, and recycling of woody biomass. Until now, forest carbon absorption has been measured and managed at the national level, but local governments have not approached...
Additive manufacturing (AM) is a fabrication process that uses digital information from a computer-aided design file to stack 2D layers of various materials to produce a 3D object, without requiring any part-specific tooling. The use of AM technology in ceramics has attracted significant attention as it can overcome the serious limitation of controlling the complex 3D structure based on the...
According to the development of new machine learning technologies and prediction models using it, the application of machine learning is already very active in all research areas, including material design even in life sciences. Since artificial intelligence type model using machine learning has the powerful potential to compensate for the shortcomings of material development, we are very...
Ambient particulate matter with a size of less than 2.5 μm (PM2.5) is associated with adverse effects on human health, and its chemical composition is very complicated. High-resolution mass spectrometry (HR-MS)-based non-targeted analysis is applied to analyze the mixtures of organic components of PM2.5 in this work. Soluble chemicals are essential for internal exposure of PM2.5 in humans, but...
o Background: The practical inverter model has frequency-dependent parameters, which mean that the designed filter may produce results that differ from the targeted filter specifications in terms of FBW changed and center frequency shifts. To address this issue, a frequency conversion function is proposed that takes into account the frequency dependency of the inverter characteristic impedance...
Climate technology is a key component of mitigating greenhouse gas and adapting to climate change, and its effects can be expanded to global scale. Thus, it is crucial for countries to cooperate on developing and deploying prominent climate technology to combating to climate change. Hydrogen sector is considered as one of the most important sectors for just energy transition in the future....
From the perspective of diversity, an inclusive city should create an environment that reflects the needs of various residents and users, and children should be given top priority. In particular, children living in poor housing environments are prone to experience multidimensional deficiencies in their home and neighborhood environments. This study visited about 20 households of children...
This presentation describes the micro SAR satellite being developes by Hanwha systems. The satellite adopts a flat plate shape rather than a conventional type of deployable satellite. In addition, the SAR payload introduces electronic beam steering to improve mission performance. The presentation introduces the features and adventage of Hanwha systems' micro SAR satellite.
As for the certification of agricultural products, the quality of agricultural products is guaranteed through various certifications according to the situation of each country around the world. However, it is not well known about the growth environment (e.g., weather, soil condition, fertilizer use etc.) and the expected quality for the entire cycle of the cultivation environment. In this...
Digital dentistry refers to the digitalization of the entire process of dental treatment, including bone measurements, virtual surgery planning, occlusion analysis, and implant placement. With the recent integration of deep learning technologies, digital dentistry has become increasingly accelerated, and it is expected to significantly improve the efficiency of dentists' work and enhance...
The production of biocompatible implants by 3D printing as well as the development of new biomaterials suitable for 3D printing processes is crucial for novel medical applications. Until now, quality monitoring of products manufactured by medical 3D printing has been based mainly on empirical data from the printing process and post-process testing. The lack of inline quality assurance for...
In recent years, there has been a growing emphasis on the need for sustainable practices and the circular economy. This has put pressure on industries, including the fibre-reinforced polymer (FRP) composites sector, to develop efficient recycling technologies to minimize waste and environmental impact [1-4].
To achieve effective recycling of FRP composites, the focus is primarily on...
The fungal pathogen Candida albicans affects over 1 billion individuals annually by secreting toxin, candidalysin. In 2016, candidalysin was the first identified in human fungal pathogen Candida albicans. Candidalysin is generated from parental protein Ece1p (271 amino acids), encoded by the ECE1 gene. Ece1p is processed by Kex proteinases, yielding 31 amino acids candidalysin peptide and...
The world is currently facing a lot of climate disasters, including droughts, floods, heavy rainfall, and heavy snowfall, because of climate change. In response, detailed implementation rules are being established and enforced by parties to the United Nations Framework Convention on Climate Change (UNFCCC) to reduce greenhouse gas emissions. The Republic of Korea, as a party to the UNFCCC,...
In this presentation, small SAR payload which is developing by Hanwha systems will be introduced. Our micro SAR consists of digital control unit, radio frequency unit, electrical frontend, and antenna unit. Each unit is divided by functional module and we will present each function, shape and experimental performance. The purpose is that our mircro SAR payload will be on-boarded and launched...
There is significant recent interest in clean hydrogen production from renewable water electrolysis. However, the costs of green hydrogen are more than twice as expensive as fossil fuel-based production [1]. The largest single-cost component is renewable electricity; thus, plenty of catalysts have been developed to reduce the required electrical energy (i.e., less overpotential). Usually, the...
Railroads and ports are important transportation infrastructures that connect the national territory vertically and horizontally or even abroad. Reading these spaces as a dimension of urban regeneration means not only seeing them as transportation facilities, but also solving them from a convergent perspective of history, geography, humanities, and human beings.
During the period of...
Auscultation with a stethoscope has been an essential part of diagnosing patients with respiratory diseases and providing first aid. However, accurate interpretation and diagnosis of auscultation sounds relies on the expertise of clinicians, so it is important to develop an artificial intelligence-based diagnosis support system using respiratory sounds. In this talk, we propose a deep-learning...
Sol-gel chemistry usually starts from liquid raw materials. These undergo hydrolysis and condensation. A sol is formed. Further condensation and/or solvent evaporation leads to a gel. IKTS uses these processes mainly for coatings and membrane preparation. Pure inorganic sols are used to form porous membranes of silicon dioxide, titania, zirconia or alumina for use in liquid filtration,...
A glycosynthase is a mutant enzyme that is made from a retaining glycosidase. A retaining glycosidase has a catalytic nucleophile and an acid/base (both, normally Asp or Glu) in the active site. When the catalytic nucleophile is mutated to non-nucleophilic residue, the mutated glycosidase cannot normally hydrolyse its cognate substrate, but still catalyses the glycosidic bond formation between...
We present a 120 GBd 2.8 Vpp,diff driver for InP Mach-Zehnder modulator using 55 nm SiGe HBTs. The output impedance of the driver has a differential 2 × 25 Ω, matched to the optical modulator. The measured 3 dB bandwidth exceeds 67 GHz, and output P1dB is about 16.7 dBm at 1 GHz. The variable gain using the Gilbert-cell is implemented, and 2.1 dB gain variation is measured. The total harmonic...
Development of electroluminescent quantum dots (EL-QDs) has been retarded from their trade-off between processability and electrical property. Long alkyl chain-based ligands have been applied to achieve dispersion stability in organic solvents; insulating nature of the alkyl chain is detrimental to device performances. To circumvent this issue, we selected a new series of adamantane-based...
closing remark for EE6
As a visual object, OOH(Out-of-home) advertisements are exposed as landscape by pedestrians (Cho, 2009). The installation of OOH advertisements determines the image of the street and the city, and what appears as a set of local environmental features can be defined as OOH advertisement landscape (Lee, 2022). Korea's OOH advertisement landscape has been criticized for being the main culprit of...
Agricultural products are an important part of human life and account for a significant proportion of the market economy. Agricultural prices have a direct impact on the livelihoods of suppliers and the household economies of consumers. Therefore, governments around the world are making great efforts to stabilize agricultural prices. The price of agricultural products is determined by the...
Mechanical systems comprise numerous components that undergo relative motion while in contact with a countersurface. As the parts move, they inevitably experience frictional interaction which directly influences the degree of energy dissipation or consumption. With prolonged motion, the surface of the mechanical components may be degraded due to wear, and ultimately lead to complete failure of...
DNA-virus filamentous bacteriophage (fd-coat proteins) are explored in the weak AC electric field [1,2], as well applied to other materials (in graphene oxide [3], lysozyme and carbon dots). Recently there is a great interest using the bacteriophage fd-viruses as a potential vaccine therapy due to the presence of many polypeptides. However, there are still unknown genomic “mutations” that may...
Our newly developed active paper-based open chips, fabricated by inkjet printing, and their application in lab automation will be presented. This technology simplifies the workflow and improves reaction accuracy compared to conventional methods, which often require multiple pre-treatments, mixing, separation, and thermal treatment on a single paper chip design.[1-3] We will discuss the...
Microfluidic system is a small portable system that can complete sample pretreatment, separation, dilution, mixing, chemical reaction, detection, and product extraction. These systems can increase analysis speed and efficiency as well as reduce the consumption of samples or reagents. Moreover, the process of analysis can be completely automated, eliminating human interference, preventing...
With the adoption of the National Document on Authenticity at the 1994 National Conference, a definition of "authenticity" was codified as a requirement to be inscribed on the World Heritage List. But even before authenticity was defined for these judgments, it was a concept that had long been embedded in Western architecture.
Authenticity is deeply linked to materiality in Western...
Spectrum, in the context of mobile broadband communications, refers to the range of electromagnetic frequencies used for wireless transmission of data and information. Mobile carriers and service providers use different frequency bands within the spectrum to offer mobile data services, voice calls, and other wireless applications to end-users. Spectrum is a primary and yet scarce resource in...
Since the discovery of the accelerating expansion of the universe [1,2], observational cosmology using Type Ia supernovae (SNe Ia), the thermonuclear explosions of white dwarfs, has entered a mature stage. However, the physics of the SNe Ia, such as a progenitor system and explosion mechanism, are still not fully understood [3]. Regarding the progenitor star, current studies use a host galaxy...
Single-molecule fluorescence studies reveal valuable structural and functional information on biomolecules. However, conventional single-molecule methods have limited sequence diversity due to time, effort and cost constraints. To overcome this, we combine surface-based single-molecule fluorescence with next generation sequencing, enabling massively parallel single-molecule experiments for...
Liquid metal electrode batteries are a promising solution for sustainable energy storage due to their low manufacturing costs and high recyclability.[1] However, to improve their viability, they need to operate at lower temperatures, higher voltages, and be membrane-free.[2,3] In this study, we present a novel membrane-free battery design based on liquid alkali metals and iodide. The battery...
Andrea Guati Rojo is Stakeholder Relations Manager at Ammonia Energy Association, responsible for managing AEA's internal and external affairs and the AEA certification scheme. She performed the first-ever empirical study on green ammonia public acceptance, examining the development of ammonia projects in Mexico and the UK.
Her presentation will cover:
-Conventional Ammonia production...
Here, we present two different applications of responsive hydrogel, which can be prepared by electrospinning or micropatterning processes. The first application is the use of responsive hydrogel for soft actuators. We fabricated a soft actuating system based on hydrogel-incorporated fibers by combining electrospinning and hydrogel lithography. Fibrous passive and active layers were stacked and...
Due to human-induced climate change, the world is calling for a technological revolution centered on the decarbonization of industry and the energy transition. A key component of this effort is the ability to store energy from fluctuating renewable sources. Emerging technologies such as lithium-ion batteries and water electrolyzers for the hydrogen economy have a high demand for critical...
The presentation explains the method of “Maquette Figure” (Figure Model) and “organigramme” (Organization Chart), with two architecture projects in master’s program in ENSA Paris-Belleville. “Maquette Figure” serves as a device that defines the sense of a project, which represents the relationship with the context and the spatial configuration. It’s structured by orthogonal planes, then planes...
According to the World Health Organization (WHO), there are about 1 billion disabled people around the world, accounting for about 15% of the world's population. However, disabled people in each country are socially disadvantaged and do not receive human life support in their daily lives. Since 2019, we have been carrying out a self-sufficiency project for medical rehabilitation assistive...
The GaN is a representative wide band-gap compound semiconductor for efficient connectivity and energy systems in the future. The GaN is rapidly expanding in commercialization as a high-frequency HEMT using a 2DEG structure and a power-switching device having a high breakdown field. Among them, high-frequency power HEMT is applied to power amplifiers with wide-bandwidth characteristics and...
The MIDAS (Micro-Imaging Dust Analysis System) atomic force microscope on board the Rosetta comet orbiter investigated and measured the 3D topography of a few hundred nm to tens of μm sized dust particles of 67P/Churyumov-Gerasimenko with resolutions down to a few nanometers, giving insights into the physical processes of our early Solar System.
We analyze the shapes of the cometary dust...
The need for an accurate and rapid diagnosis platform for highly contagious virus such as pandemic virus has been increased rapidly. At the initial stage of quarantine, conventional diagnostic method for the prevention of epidemic confronted those limitations such as long operation time, occupation of large space, and high cost per single operation. Here, we report a highly sensitive and...
The presentation will cover below topics:
-Status of European Ammonia Industry in production, logistics, and application aspects.
-Green ammonia production status in European countries
-Commercialization of Green Ammonia and limitations
The migration of immune cells from one organ to another is critical for their differentiation and function1,2. T cells play critical roles in multiple sclerosis, a human disease characterized by the demyelination of neurons and detrimental damage to the nervous system3. The lung is involved in this process by accumulating myeloid cells and educating myelin-reactive T cells to be more...
As environmental regulations tighten and the demand for lightweight materials increases, the utilization of carbon fiber reinforced plastics (CFRP) in high value-added industries such as automotive, aviation, and space is on the rise. However, there is a lack of recycling systems to cope with the growing use of CFRP, resulting in a significant amount of waste. Specifically, the recycling of...
Urban Design According to Artistic Principles (Der Städtebau nach seinen Kün-stlerischen Grundsätzen) is a book by the Austrian-born architect, urban planner and theorist Camillo Sitte (1843-1903), subtitled “Architecture and Monuments with a Specific Relation to Vienna”. This is a dissertation aimed at resolving the contemporary questions of sculpture. It is a masterpiece of urban design...
We propose a new approach to Engineering Education based on the concept of the vertical integration. The approach can be seen as a variant of the problem based learning (PBL). Through the use of vertical integration concept, we can develop a new way to motivate students to acquire meta-knowledge that is becoming evermore important for the successful professional practices in the 21st century....
NO is a free radical molecule synthesized by nitric oxide synthase (NOS) in the process of converting L-arginine to L-citrulline in cells. It has various physiological roles in the body, depending on the concentration of NO. Low concentrations of NO are involved in vasodilation and serve as cellular signal transduction. In contrast, at relatively high concentrations of NO, it is known to be...
The burgeoning population and industrialization around the world have resulted in an immense surge in the demand for energy [1]. To meet this need, it is crucial to develop advanced technologies that can offer reliable and efficient solutions. Power semiconductor devices are vital components of a wide range of energy conversion and control systems, including power electronics and renewable...
Hydrogen strategies and high level energy transition roadmaps pinpoint ammonia as a carbon-free energy vector, beyond its traditional use as feedstock for fertilizers and chemicals. Therefore, ammonia also has a central importance in solving the urgent energy-, feedstock- and food security questions around the world.
Current demand side of ammonia market in Germany and South Korea will be...
The topic of "inclusive growth" has emerged as a new interest worldwide. In 2014, among Korean scientists and technologists in Europe, the Inclusive Development Research Association for Mankind (I-DREAM, https://idream4all.eu) was "established" in Paris, France. Since its establishment, the association has been developing and providing appropriate technologies and carrying out related...
Play is a natural and essential activity for human development. Through play, children learn about themselves and the world around them. Playgrounds are spaces where children can engage in different types of play and experience different play elements. Playfulness is the quality of play that makes play fun, enjoyable, and meaningful. The purpose of this study is to propose a method for...
Degradation of catalysts presents a considerable obstacle in the path to the commercialisation of CO2 electrochemical reduction. This is primarily due to the reduction in activity and selectivity it incurs. Despite this, the high costs associated with catalyst characterisation experiments make it difficult to produce adequate and significant data on catalyst deterioration. Machine learning...
Stationary Battery Energy Storage Systems (BESS) in the large scale will play an essential role in near future energy supply. The corresponding market numbers indicate that BESS becomes more and more attractive, even in the economically point of view. Nowadays the marked is clearly dominated by Li-Ion technology. Driven by the mobile application marked, this technology reached an impressive...
The 1 subunits (CACNA1 family) of L-type voltage-gated calcium channels (LTCCs) play significant roles in brain function and neuropsychiatric disorders. Transcription of LTCCs is complex, with each 1 gene producing multiple isoforms. CACNA1S and CACNA1F were reported to have short-length transcripts from their 3’ region in the human brain which were not well characterized. Moreover, whether...
The required frequency is increasing according to the communication generation and various researches such as MMIC and beamformer IC are being conducted accordingly. In addition, in order to safely mount these ICs and preserve designed performance, development of ceramic package is being actively conducted. Conventional ceramic packages focus on hermetic, reliability, high heat dissipation and...
Sodium-nickel chloride batteries are a highly efficient and intrinsically safe energy storage technology. [The research activities at the Fraunhofer IKTS address the comprehensive investigation of all related materials, components, and processes. This covers the electrochemical cell behavior described with the given equation.
Ni + 2 NaCl ⇌ NiCl2 + 2 Na E0=2.58 V at 300 °C
The cathode...
Cities in the global South are often characterised by informality – unregistered, unmonitored, or untaxed businesses, and unpaid, underpaid, or unprotected labour still persist. With the arrival of various digital platforms in this context, however, digital technology has emerged as an important solution to more rightfully regulate such informal practices. As such, what distinguishes the...
HP3
Global warming is a climate emergency, and all sectors, including the maritime industry, must take immediate collective action to reduce emissions in line with the Paris 1.5°C trajectory. This paper will briefly review the current status of maritime decarbonization strategy and the progress of the transition in the shipping sector so far and outline the actions the industry must take to move...
In order to explore, design, install and operate new wind farms, it is necessary to ensure the durability of the unit wind platform. In particular, they must have good hydrodynamic and aerodynamic performances as well as structural performance.
However, in contrast to fixed wind platforms, floating wind platforms are very technically challenging and present technical bottlenecks in the...
Around 1800 the establishment of the first cottons mills in Saxony marked the start of the industrial revolution in Germany. In the beginning there was no precise vision what kind of building would be necessary or suitable to house the machinery for the industrial production of spinning cotton. The entrepreneurs and architects involved in the development therefore followed the example of the...
Organometallic perovskite solar cell has been considered as one of the most attractive and promising next generation solar cells due to its superior photoelectric properties including low-cost fabrication potential based on solution process After Miyasaka's report of 3.9% power conversion efficiency (PCE) in 2009, it has developed rapidly and reached a highest PCE of 26.02% by Seok in 2023. In...
The improvement of technical systems in the field of aerospace engineering and energy process engineering requires fundamental experimental work and the respective diagnostics tools for measuring the local variables temperature, concentration and velocities. These quantities determine the efficiency and pollutant emissions and consequently, at least planar measurements must be available with...
Introduction of LH4
In this session, we invite current research work investigating changes of Earth and environmental systems as well as topics related to human impacts and the Anthropocene.
People have intentionally transformed river channels in various ways to e.g., enable shipping, for flood protection and hydropower generation. The effects of such measures are well understood and instruments in place to revert some of the environmental impacts through river restoration and re-wildering of river courses. But how do natural rivers look like? In recent years it became clear that...
Foods are sources of several nutrients and bioactive compounds that help maintain the body in proper health and prevent cancers associated with dietary exposures. There could be an interactive effect between diet and other host factors, such as lifestyle and genetics, involved in carcinogenesis. With the advancement of nutritional research and the translation of progress into practical...
Prediction of the performance of a ship under actual operating conditions is very difficult due to the complex effects originated by environmental disturbances. ISO15016 and ISO19030 standards are commonly used to evaluate operating performance. ISO15016 requires many variables, time and cost by a complex calculation formula, and ISO19030 only evaluates the ship speed drop due to the wind...
Back in 2010, in the midst of crisis in the European solar sector, Hanwha took the bold step to strategically enter into the green energy sector in order to turn it into a long-term growth driver for the Korean Global Fortune 500 company. While European players like Siemens or Shell stepped out of the PV module business, Hanwha entered the sector with the acquisition of Solarfun in China. Only...
The I08-1 soft X-ray ptychography instrument at the Diamond Light Source (UK) is a facility dedicated to the spectro-microscopic and tomographic analysis of the interaction of organic and inorganic matter with unprecedented spatial resolution. It provides capabilities to do Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy for the analysis of transition metals or other elements...
The laser-spot welding process of aluminum alloy 1050A with a limited thickness is observed with the x-ray phase contrast method to investigate the melt dynamic especially when the melt penetrates the material. The laser-spot welding is investigated with two different wavelengths of the laser beam source: 515 and 1030 nm to investigate the influence of the absorptivity. The melt progressively...
Since the revolution in production through industrialization that began in the 18th century, standardized and rationalized production principles have been applied to architecture. Efforts to build more efficient, high-quality, and affordable buildings were continuously attempted in response to the post-industrial social situation. As urbanization and industrialization intensified, architecture...
The propellers have been used to generate the propulsion of ships with a long history. Many studies have been conducted to improve propulsion efficiency and to reduce vibration by optimizing the shape of propellers. Due to the shape of the stern of the hull, the inflow velocity entering the propeller plane has non-uniform characteristics, which is called a nominal wake. The propeller rotates...
The ocean covers more than 70% of the Earth's surface and controls the Earth's climate on various time scales, especially longer than decades. Due to its long-term internal variability and variable response to increasing greenhouse gases, observed changes in ocean variables such as sea surface temperature show inhomogeneous warming patterns among different regions over the past decades. These...
The transition towards a sustainable and carbon-neutral energy future requires the development of innovative technologies that can store and transport energy from intermittent renewable sources such as wind and solar power. Liquid Organic Hydrogen Carriers (LOHC) technology is emerging as a promising solution to address this challenge.
This talk provides an overview of the basics of LOHC...
The intake of vegetables and fruits were known as a healthy food for breast cancer patients as well as general population to prevent the risk of incidence. Carotenoids were rich in most vegetables and fruits, which include specific subclasses such as α-carotene, β-carotene, β-cryptoxanthin, lutein/zeaxanthin, and lycopene. However, it is unclear whether specific dietary carotenoids and their...
Fusion technology, capable of converting energy caused by nuclear-fusion reactions into usable energy, has been widely acknowledged as a potential solution to the global energy crisis and a carbon-neutral future. One of the chief challenges in exploiting fusion reactions is plasma stabilization under extreme temperature, a considerable hurdle that must be overcome [1-3]. The Korea...
Digitalization and automation in Industry 4.0 bring new opportunities to perform better maintenance in various industrial sectors, including the aviation industry. On-board sensors are used to monitor the health condition of aircraft components, and machine learning is used to predict the future of the health conditions. All these opportunities bring a new maintenance approach called...
Autonomous ships are anticipated to support the shipping sector's sustainability and resilience. However, the health monitoring and maintenance management barriers for autonomous ship machinery must be sufficiently addressed. Prognostics and health management (PHM) approaches to assess the health conditions of autonomous ship machinery can provide solutions for these barriers. However, the...
Increased anthropogenic activities and industrialization have led to a substantial increase in greenhouse gas emissions and atmospheric aerosol concentrations and caused climate change. Increased aerosol concentration in the atmosphere affects the radiation budget and climate in two distinct ways. First, aerosols cool the atmosphere by directly reflecting incoming solar radiation. Second,...
Following the Paris climate agreement, hydrogen (H2) is becoming increasingly important as a CO2-free mobile energy carrier. In addition, after the start of the Russo-Ukrainian War, the desire for independence from Russian natural gas has strongly arisen in the EU. In the long term, this should happen with the massive expansion of renewable energies. One of the most effective possibilities is...
Some functional disused industrial facilities are recognized for their "heritage value" and subsequently listed as technical heritages or UNESCO World Heritage Sites, identifying them as industrial heritage.
The object of industrial heritage is considered to encompasses not only the buildings where industrial activities took place, but also, in a smaller sense, the tools and machinery that...
Precise position control is essential for the safe operation and automatic berthing/unberthing of autonomous ships. Although studies on automatic berth/unberthing and close passing have been conducted in ports or narrow waterways, there are not many studies determining potential contact between objects in the process. This is because a sophisticated model that can accurately represent the...
The human gut microbiota is a complex community of microorganisms, dominantly bacteria, which reside in the human gastrointestinal tract [1]. Emerging evidence suggests that the gut microbial diversity and composition and its relevant metabolites such as short-chain fatty acids (SCFAs) are involved in numerous physiological processes in the human body [2], which could affect metabolic diseases...
Controlling the magnetization direction of a ferromagnet is crucial for magnetic memories, including cassette tapes, hard disk drives, and the next-generation magnetoresistive random access memory (MRAM)—a type of non-volatile memory that stores data by manipulating magnetic states. However, the current method of controlling magnetization—by generating a spin current converted to charge...
The railway wheel is a prioritized component for vehicle maintenance as it takes a significant portion of maintenance costs [1]. The subsurface-initiated rolling contact fatigue is one of the crucial deteriorations, which requires careful monitoring for wheel maintenance [2]-[3]. Due to improved quality control in wheel manufacturers and maintenance actions in railway operators,...
The global shipping industry's commitment to decarbonisation, driven by the need to meet the International Maritime Organization's (IMO) CO2 reduction targets by 2050, has spurred the exploration and implementation of diverse alternative propulsion systems, such as biofuels and carbon capture technologies. However, the consideration of risk perspectives, particularly human factors, for these...
We welcome discussion with interdisciplinary works and case studies that deploy novel approaches and tools to address the reconstruction of human-environmental interactions.
Surface modification and doping of hematite nanorods (NRs) for enhanced photoelectrochemical (PEC) water splitting was developed using a sputtering method. The ZrOx/β-FeOOH NRs were fabricated by the Zr sputter deposition and its amount was controlled by sputter time. The NRs were followed by 800 ◦C quenching to develop Zr-Fe2O3 nano-photoanodes and the nanorods were vertically oriented along...
The adoption of Internet of things (IoT) across different business domains enables smart connection between the physical world and the digital world. Voluminous amounts of data have been produced in the various business context such as manufacturing, logistics, transportation, retail, and healthcare, since the past decade as the miniaturisation of IoT devices increases (Marjani et al. 2017)....
Offshore platforms and in particular floating offshore platforms have a long history of use in the oil & gas industry. The first tension leg platform (TLP) was installed in the early 1980’s in the North Sea, at a depth of 147m. Since then the application of TLPs has grown significantly, with 30 platforms installed or decommissioned globally as of 2020 at depths of up to 1615m. While the...
Continuous carbon fibre reinforced polymer (CFRP) composites have gained significant attention in the design of lightweight structural components due to their excellent mechanical performance. The advancements in 3D printing technology based on fused deposition modeling have further accelerated the manufacturing of CFRP composites. Previous research (1), (2) has demonstrated the effectiveness...
Understanding and control of photon-induced dynamics of molecules on solid surfaces are of essential importance for surface chemistry as well as for design of novel devices. Here, such a multiview experiment is realized by integrating four modalities of time-resolved photoelectron spectroscopy—time-resolved orbital tomography, trARPES, trXPS, and trXPD—using ultrashort-pulsed extreme...
As humans spend most of their time indoors, most outdoor air pollution exposure occurs inside buildings. It is well-documented that exposure to elevated concentrations of outdoor air pollutants adversely impacts human health. The associated health risks are equivalent, or in some cases more important, to the risks provoked by exposure to indoor emitted air pollutants. To address the issue,...
It is understood that progress towards climate neutrality of waterborne transport can be achieved more quickly by means of retrofitting solutions on existing assets, to improve the performance of the fleet, whilst solutions that are exclusive to new ships can be implemented at the pace of the given fleet renewal. This makes more sense when taking into consideration the comparatively long-life...
When we talk about sustainability in coffee, until about 2015, we were talking about the economic sustainability of coffee growing regions, and the rise of Fair Trade Coffee as a solution. However, since 2015, the sustainability of coffee cultivation itself has become an issue.
Basically, coffee trees cannot withstand sub-zero temperatures, so they can only be grown in tropical climates, and...
Anaplastic lymphoma kinase (ALK) gene rearrangement, representing 3 - 7% of NSCLC, was identified as an oncogenic driver in 2007 [1]. It typically comprises younger patients with never or light smoking history [1,2]. The labs of Choi and Buettner have made significant contributions in profiling this molecular subtype as their institutions have one of the largest collections of this rare entity...
Who will be the first big player of the all solid-state batteries?
All solid-state batteries have been addressed to be the next-generation solution for electric vehicles that can overcome limitations of the current lithium-ion batteries. Despite the big expectations and some promising progress, many challenges still remain unsolved for them to be placed as major formats. As the challenges...
Near-infrared fluorescence-guided surgery using cancer-specific tracers is a promising approach to balance the radicality and quality of life after surgery. Carcinoembryonic antigen (CEA) is a potential target due to its high expression in various digestive cancers, including gastric cancer (GC). This study aims to assess the feasibility of the anti-CEA chimeric monoclonal antibody-dye...
Over the past few decades, the global community has become increasingly concerned about the effects of climate change and the urgent need for sustainable energy solutions. One key area of focus has been the development of high-energy-density batteries for use in e-transportation, as they can potentially reduce carbon emissions. The incorporation of silicon (Si) as an anode material in...
South Korea's first floating offshore wind project off the coast of Ulsan is currently experiencing some delays, but the Ulsan municipality continues its efforts to become a global energy mecca. Given the highly variable wind environment of the turbine and the corresponding interrelated responses of the substructure, the structural platform of the floating offshore wind turbine, the...
Background
Air pollution in office environments resulting from occupancy and activities can affect workers' health and productivity [1,2]. Despite the availability of low-cost air quality and occupancy sensors, there is limited real-time examination of occupant-associated air pollutant exposures in office buildings.
Objectives
This study aims to capture the association between...
The transition to a sustainable and low-fossil carbon society requires a variety of investments. Life cycle assessment (LCA) is a useful and widely acknowledged tool for comparing the environmental impacts of new and existing technologies to support the decision making. Although the primary rationale for carrying an LCA is to anticipate the consequences of new investment decisions, many LCAs...
In-situ transmission electron microscopy (in-situ TEM) is a powerful technique to observe a wide variety of phenomena that occur at the nanoscale. In-situ TEM experiments can use various stimuli, such as heating, biasing, tensioning, lighting, gas, liquid, cryo, and magnetic fields. With these stimuli, researchers have investigated particle agglomeration, oxidation and reduction, and...
Abstract
In Korea, air pollutants such as NOx, SOx, and PM-10 emitted from ships such as cargo ships are calculated and managed by the “Clean Air Policy Support System(CAPSS)”, and various policies are established and managed to reduce emissions from ships.
In particular, five large ports(Busan, Incheon, Ulsan, Yeosu & Gwangyang, Pyeongtaek & Dangjin) have been legally regulated by...
Federated learning (FL) presents a framework for training machine learning models in a distributed and collaborative manner where participating clients process their data locally, sharing only updates of the training process. FL, aiming to optimize a statistical model’s parameters by minimizing a cost function of a collection of datasets stored locally by a set of clients, was proposed as a...
The nongenetic mechanisms required to sustain malignant tumor state are poorly understood. During the transition from benign tumors to malignant carcinoma, tumor cells need to repress differentiation and acquire invasive features. Using transcriptional profiling of cancer stem cells from benign tumors and malignant skin squamous cell carcinoma (SCC), we identified the nuclear receptor NR2F2...
Occupant-centric control has gained significant attention in recent years, with the primary focus on developing personal thermal preference models to ensure optimal comfort for individuals within a given space. The Predicted Mean Vote (PMV) serves as an evaluation index for thermal comfort; however, it does not fully capture the diverse thermal preferences of individual occupants....
As the demand for battery systems continues to grow, the need for innovative materials and technologies to improve their performance and sustainability has become increasingly important. Heraeus Porocarb® is a synthetic porous carbon additive that has been developed to enhance the performance of batteries in synergy with other carbon conductive additives.[1,2] By tailoring the inner porosity,...
Background: Standardized fatigue testing is required for dental implants to estimate the mechanical quality and lifespan of these implants under cyclic loading conditions defined by ISO [1]. However, this testing represents a significant expense in terms of cost and time spent. It is why the present work proposes a predictive method to reduce this cost. This approach is mainly based on the...
[Background]
Individuals' contribution to climate change through day-to-day behavior is rapidly on the rise. To limit further temperature increases, substantial global changes need to occur, including in individuals’ daily behaviors. Smartphone apps can be used to facilitate behavioral changes toward sustainable living by providing individuals with the proper information, tips and strategies,...
Offshore Wind - The new renewable growth engine
Chan-Hee Son, Head of Offshore Wind Technology Q ENERGY, Berlin
The Offshore Wind Industry has come a long way. Since the years of the mid 2000s when regular wind turbines were repurposed for the use in a far harsher offshore environment, we now have 2nd and 3rd generation of dedicated offshore wind turbines in sizes and capacities never...
Abstract
This study aims to estimate contribution of air pollutants (NOX, SOX, CO, PM2.5, PM10, and NMVOC) from ships for one year (2020) in port in Korea, Busan and Incheon Port.
In order to estimate contribution of air concentration by ship emission, we apply to CMAQ model with ISAM (The Integrated Source Apportionment Method).
CMAQ, a chemical transport model, is a numerical model that...
Optical laser speckle correlation techniques opened up the possibility of studying diffusive dynamics in randomly distributed systems. Thanks to the improvement of large-scale X-ray generation facilities, a high flux of coherent X-rays enables us to collect a sufficient intensity of X-ray speckle images and has extended the spatial resolution to atomic scales [1]. Conventional X-ray Photon...
According to Global Cancer Statistics 2020, lung cancer accounts for one in ten new cases (11.4%) and one in five cancer-related mortalities (18.0%), making it the deadliest and the second most frequently diagnosed cancer. Despite curative treatment, around 30–55% of patients relapse, primarily at distant sites, and 50% succumb to lung cancer, suggesting the early dissemination of malignant...
This study explores a systematic review of a decentralized ventilation (DV) system compared with conventional centralized ventilation systems adapting Nordic climates. Air ventilation strategies can be classified into three main categories: natural ventilation, mechanical ventilation, and hybrid ventilation. Decentralized ventilation (DV) offers several advantages. For instance, it can...
Human activity has changed the Earth system to such an extent that recent and currently forming geological deposits include anthropogenic signatures. The planetary change is stratigraphically distinct from the Holocene, which started at the end of the last major glacial epoch. Thus, the Anthropocene has been proposed as a new unit of the geologic time scale dating from the commencement of...
Decarbonizing the energy sector, for example by increasing the renewable energy portion and the electrification of the combustion engine vehicle for the mobility sector should reduce the greenhouse gas emissions. Advancing electrification of the mobility requires high-performing battery cells and the related production technologies. To manufacture a complete battery pack from raw materials,...
As the Internet landscape continues to evolve, a new paradigm of Web 3.0 is drawing attention to resolve the problems of existing centralised platforms and data ownership. Web 3.0, also as known the decentralised web, introduces a new wave of technologies, concepts and environments mainly built upon blockchain technology that aims to address the limitations and challenges of the previous web....
The accelerated switch to renewable energy makes wind energy harvesting more necessary. Germany and other European countries announced ambitious goals for future energy generations from renewable sources – especially wind. However, for onshore wind energy generation there is often a conflict of interest between wind turbines and third parties. For offshore wind generations faster and more...
Terahertz (THz = 1012 Hz) spectroscopy is a promising analytical technique for non-destructive, highly accurate investigation. Since THz time- domain spectroscopy measures both amplitude and phase of transmission through materials, which can be used to extract the spectral shape of the conductivity spectrum, and THz pulses can act as ultrafast probes of intraband excitations of materials, it...
Cancer biophysics is an interdisciplinary field that combines the principles of physics, biology, and engineering to study the physical and mechanical aspects of cancer biology and its progression[1]. It focuses on understanding the physical forces, properties, and processes that govern cancer development, growth, invasion, metastasis, and response to treatment. Through the application of...
With plans of establishing human settlements on the moon, extraction and utilization of water resources from the lunar subsurface arose as one of the hot research topics in geotechnics. Through lunar explorations, water ice was detected at the PSRs (Permanently Shadowed Regions) of several lunar craters. Several sites are deemed to hold relatively large amount of water ice, however, the...
We welcome discussion for Europe-Korea cooperation on Anthropocene researches and the reconstruction of human-environmental interactions.
The progress of deep learning (DL) and artificial intelligence is astonishing, and it attracts numerous researchers and practitioners from multidisciplinary domains. Although tremendous literature regarding DL applications has been published across domains, it is uncommon that DL applications are actually deployed in the daily routine. This study empirically investigated popular deep learning...
Recent waves of COVID-19 correlate with the emergence of the Delta and the Omicron variant. In this study, we combined high-speed atomic force microscopy with single molecule recognition force spectroscopy to investigate, at single molecule resolution, the interaction dynamics of trimeric Spike with its essential entry receptor ACE2. We report that the Spike trimer undergoes rapid...
Housing for women - the case of IBA 87
In patriarchal societies, it is common for men to be primarily active outside and women inside the home. However, even housing was often not a space for women: ordinary apartments were designed by architects without knowledge of women's living conditions, and women often felt uncomfortable in their apartments. In Berlin, people recognized these...
Abstracts
Around the world, the incidence of cancer is increasing every year. The surgery, radiotherapy, and chemotherapy currently being treated in hospitals are not perfect and cause a lot of pain to patients. In addition, the patient's quality of life is reduced due to side effects or sequelae after treatment. In comparison, photodynamic cancer treatment using lasers is effective for...
The need to reduce GHG emissions in maritime operations is an essential part of limiting global warming. Despite this, the sector has traditionally lagged behind land based transport when it comes to initiatives for deep decarbonisation and a move towards truly zero emission fuels. The offshore wind sector has the potential to be a first mover in maritime decarbonisation. As both a producer...
Global navigation satellite system-based navigation is sensitive to disturbances and jamming, hence the capability to provide reliable position accuracy without GNSS is a key element to develop the navigation systems. Recently, camera sensors have been widely used in navigation system due to the development and application of deep learning techniques. This paper proposes a deep learning based...
It may sound a bit clichéd, but rapid urbanization and industrialization have caused various urban problems such as environmental pollution, lack of infrastructure, and energy shortage. Complex and diverse urban problems can no longer be solved in traditional ways. So, the smart city concept was introduced in South Korea. The smart city concept is compelling as a way to intelligently and...
Recently, as order for Green ships have increased in earnest around the world, international shipping companies are adopting eco-friendly alternative fuels suitable for their fleets and their own industrial environments. In addition, global shipping companies are making great efforts to build a supply chain to smoothly supply the adopted fuel to their ships.
The Republic of Korea is also...
In lab-on-a-chip research, the technology of precisely manipulating and separating single cells holds considerable potential. This technology is crucial in revealing cell heterogeneity, mechanisms of cell functionality, and individual cells' unique characteristics, deepening our understanding of disease diagnosis and treatment. Our research has developed a Magnetophoretic circuit technology...
One's own living space is one of the most private spaces people have. Not only does it provide shelter and security, but it also materializes individual needs and forms of expression.
The topic of housing has also been a subject of debate in architectural discourse for centuries, and not least housing concepts of the 20th century in their diversity are among the pioneers of socially...
Over the past two decades, circulating biomarkers (CBs) including circulating tumor cells (CTCs), exosomes, ctDNA and etc. have been widely recognized for their importance in clinical trials. Recent advances in microfluidic approaches have made it possible to enrich CTCs and form circulating tumor cell (CTC)–neutrophil clusters which are highly potent precursors of cancer metastasis. Our novel...
Magnetic resonance imaging (MRI) is a non-invasive medical imaging technique that provides detailed information about the internal structure and function of the human body. MRI signals are acquired and stored in k-space, which is the spatial frequency domain representation of these signals. The signals are then reconstructed into MR images using linear operators, such as Fourier Transform....
The global maritime sector is under increasing pressure to reduce greenhouse gas (GHG) emissions and adopt sustainable practices. To address these challenges, ammonia-based fuel cell hybrid ships have emerged as a promising solution. This research aims to provide an overview of the current state of ammonia-based fuel cell hybrid vessels and discuss future onshore demonstrations. The propulsion...
Magnetic Particle Imaging (MPI) is an imaging modality that uses the nonlinear magnetization characteristics of superparamagnetic iron oxide particles (SPIOs) and a relatively high magnetic moment compared to general paramagnetic materials. Since MPI can directly measure the concentration and location of SPIOs distributed in space, it is one of the emerging medical imaging techniques that are...
Residential architecture is meant to be a private and personal space for individuals and their families. On the other hand, architecture is a manifestation of a society's culture, economy, and politics at a given time, and it has a "collective" or social aspect. Moreover, the "sociality" of residential architecture is even heavier when we consider that more than 70% of all structures worldwide...
Neural networks performance has been significantly improved in the last few years, at the cost of an increasing number of floating point operations per second (FLOPs). However, more FLOPs can be an issue when computational resources are limited. As an attempt to solve this problem, pruning filters is a common solution, but most existing pruning methods do not preserve the model accuracy...
The Korea national R&D project named “Innovative Eco-friendly Ship Technology Development” was launched from 2022 with the support of the Ministry of Trade, Industry and Energy and the Ministry of Oceans and Fisheries to localize key technologies for reducing GHG emission at least 70% to satisfy the IMO regulation. The project will be carried out for 10 years and the “KORIES” (Korea...
Synthetic DNA plays an essential role in many applications, from DNA structural nanotechnology and synthetic biology, to diagnostics and proteomics, serving as a programmable material that can enable Ångström-level positional control [1, 2]. However, to maximize the utility of DNA in these applications, additional engineering efforts are required, such as quality control or precise arrangement...
Human serum albumin (HSA) in human blood system is a significant target of oxidative stress, and severe alterations to its physiological functions can result from severe oxidative damage. The severe oxidative damage to HSA has been associated with various human diseases, including liver diseases, chronic kidney disease, cardiovascular disease, neurodegenerative disorders and cancer. As such,...
Malfunction of the skeletal muscle cells cause a wide range of problems such as developmental disorders, congenitor myopathies or dystrophies, traumatic muscle injury, and even sarcopenia. Furthermore, the importance of exercise biology is catching increasing attention in this ever-ageing demographics. While these underscore the pressing need to better understand the biology of skeletal...
A cold roll-bonding (CRB) process is applied to study the mechanical properties of the roll-bonded multi-layer Al sheets. The various commercial Al sheets with a thickness of 2 mm are stacked alternately to each other from two to four layers, and roll-bonded by multi-pass cold rolling. The roll-bonded Al sheets are then conducted by annealing and/or age treatment. The as roll-bonded Al sheets...
Field-effect transistors (FETs) have attracted interest as primary candidates for the fabrication of state-of-the-art sensor platforms because they can achieve high current amplification with a relatively high signal-to-noise ratio. Importantly, one-dimensional nanomaterials that exhibit high charge carrier mobility along their long axes can be used in highly sensitive biosensors. Among the...
Development of Exo-Suit Based on Textile materials for Manual Lifting
Namyim Kim ・Hyojeong Lee*
College of Natural Sciences, Department of Fashion Design & Merchandising, Kongju National University
Assessing the activity or fatigue level of muscles involved in specific tasks and acting appropriately can help prevent musculoskeletal disorders. The purpose of this study is to develop a soft...
Additive Manufacturing (AM), also known as 3D printing, specifically Fused Deposition Modeling (FDM), is being widely applied in various fields such as aerospace, automotive, bioengineering, and architecture due to its advantages in constructing complex geometric structures, highly customized production, and minimizing material waste. However, FDM, which mostly utilizes thermoplastic resins as...
The emission of carbon dioxide (CO2) resulting from the combustion of fossil fuels has played a significant role in global warming, leading to increased risks of hazards and disasters compounded by climate change. To address these challenges, it is crucial to develop a new energy economic paradigm that can achieve carbon neutrality and mitigate the impacts of climate change. In this study, we...
Despite many advantages of the superhydrophobic surface, its real-world application has a huge challenge because the surface is susceptible to physical damage and other types of fluid contamination, such as oil and blood, causing a permanent loss of superhydrophobicity. Various strategies have been suggested to address the problem. However, most of the studies mainly focus on a wear-resistant...
With the intensifying severity of climate change, the role of electric vehicles as a critical solution for mitigating greenhouse gas (GHG) emissions in the road transport sector has been underscored. However, lithium-ion batteries, a central component of electric vehicles, are known to significantly contribute to GHG emissions due to their use of energy-intensive materials and manufacturing...
The development of technologies to determine and control the quality of food has always been of great interest, as the freshness of food is directly related to our health. Especially in the recent coronavirus pandemic, the interest in health has increased dramatically, and as it has become common to receive food deliveries in quarantine, there has been a lot of investment in food freshness...
Berlin's electricity industry has had a significant impact on the city's geography, with numerous sites and buildings bearing witness to its industrial heritage. This research aims to investigate the status, spatial characteristics, preservation, and utilization of key heritage sites to gain a deeper understanding of Berlin's industrial heritage associated with the electricity industry.
The...
III-V quantum dots (QDs) act as naturally bright and highly efficient quantum emitters that can generate deterministic single or entangled photon pairs. QDs embedded in a free-standing nanowire (NW) serve as a scalable platform for site-selective and geometry-controlled in-situ heterogeneous integration onto photonic waveguides (WG) - a crucial milestone for the realization of a quantum...
Engineered living materials (ELMs) are an emerging class of functional materials, often fabricated by incorporating living cells within an inert polymer matrix to form desired functions. Unraveling the formation, spatial localization, and behavior of cellular populations within an artificial niche is a prerequisite for predicting and intensifying the functions of living materials. This study...
Nanoscale catalytic materials are key components of various electrochemical devices for storing and converting renewable energy, such as fuel cell, water splitting and CO2 electrolysis system.[1-7] Their successful development and optimization require insight into the relations between atomic-scale structure of the catalytic interface and their electronic structure to improve the...
Various studies are being conducted on the prediction of fuel oil consumption of marine diesel engines [1,2]. Fuel oil is a fundamental element that moves ships and accounts for a large portion of operating costs. The vast accumulation of data, the improvement of computer performance, and the development of artificial intelligence technology make it possible to predict marine fuel oil...
In this study, we propose an optimized gate electrode structure of AlGaN/GaN high-electron-mobility transistors (HEMTs), improving 109.71% in breakdown voltage as compared to the basic T-gate structure. First, we varied the gate-head lengths of the basic T-gate HEMT. The length of gate-head-top (L_(Gate-Head-Top)) and gate-head-bottom (L_(Gate-Head-Bottom)) of the basic T-gate HEMT were 0.6 μm...
The organic interfacial compounds are required as highly stable linker between bioprobe and 2D nanomaterial such as graphene. During the fabrication process of nanobiosensor via micro electromechanical system (MEMS) process, the covalent stable functionalization on large-scale graphene and less toxic chemical to humans are needed. Although, π-π interaction-based interfacial chemical such as...
Clostridium ljungdahlii is a known electro-active bacteria, which can utilize solid electron donors such as negatively charged electrodes and metallic iron [1]. C. ljungdahlii also can fix CO2 and CO using Wood-Ljungdahl pathway to produce aceate, ethanol, lactate, and 2,3-butanediol [2]. These versatile capabilities of C. ljungdahlii draw attention for industrial application of mitigating CO2...
Forsythia koreana (Oleaceae), a perennial shrub, is widely distributed in east Asia. From the F. koreana flowers, twenty phenolic compounds including four new ones were isolated through repeated column chromatographies and identified based on spectroscopic data such as 1D and 2D NMR, IR, FAB/MS, and CD. As well the examination of extracts, fractions, and isolated compounds was carried out...
This study aims to develop an in-home senior healthcare platform that can consistently and accurately monitor and manage the life-logs of homebound seniors during their daily lives, without requiring any specific operation from them. The platform utilizes vision sensors to measure the seniors' daily behaviors and analyze the data to identify their health status. By proactively managing their...
Pathogenic microorganisms with harmful toxins can cause fatal effects and infectious diseases in humans. The concern is that there is a risk of easy exposure to bacteria such as Bacillus anthracis, Yersinia pestis, Staphylococcus aureus, etc. The development of diagnostic antibodies is clinically important in that biological agents associated with infectious pathogens can be diagnosed easily...
Beyond-fifth-generation (B5G), sixth-generation (6G) and Internet-of- Things (IoT) applications, such as autonomous driving and robot-assisted living anticipate scenarios where multiple user equipment (UE) not only communicate with multiple access points (APs), but also collaborate among themselves and utilise communication signals in the detection and identification of objects in the...
Background: The number of diabetic patients in Korea is rapidly increasing every year, and as of 2020, there are about 6.05 million diabetic patients over the age of 30, and one in six is said to be suffering from diabetes. However, considering the number of pre-diabetic and hidden patients, it is estimated that there will be a much larger number of diabetic patients than this.
In addition,...
Typical farming tasks and farm environments are technically challenging for automated robots to replace labor. Successfully implementing automation in agriculture is challenging because there are many technical variables that vary from country to country, region to region, and crop to crop, and it is difficult to make it economically viable.
It is difficult to develop agricultural...
This study proposes a new strategy for developing anti-glycolytic polymeric materials that can regulate energy production in cancer cells through the inhibition of aerobic glycolysis. Cancer cells suffer from energy deficiency when compared with that of normal cells; this is mainly caused by hypoxia stress and critical damage to mitochondrial respiration in cells, referred to as the Warburg...
Chemical weapons were designed to kill large numbers of people in warfare, Unfortunately, they have been often used to terrorize people even in peace, not only in war. Especially, nerve gas agents such as sarin, VX, soman, and tabun are of great concern due to their odorless and colorless characteristics. Thus, intensive research has been carried out to develop sensitive, selective, and...
Background: Previous human trials failed to support the anticarcinogenic effect of vitamin E despite biological plausibility and considerable epidemiological evidence. One of the explanations for this inconsistency was the interactive effect of the catechol-O-methyltransferase (COMT) gene and supplemental vitamin E on cancer (1). We examined whether a COMT gene variant modulates the effect...
This study investigates various oversampling methods for enhancing voice pathology detection using the pathological database of Eulji Medical Center. Voice pathology detection is crucial in diagnosing and treating speech disorders, but imbalanced datasets pose a challenge. The study utilizes the comprehensive pathological database from Eulji Medical Center, providing diverse voice pathology...
Depression is a common mental health problem in modern society, which causes patients to lose interest and motivation in everyday activities. With the influence of social distancing measures due to COVID-19, social isolation and uncertainty have increased, leading to mental health issues such as depression and anxiety[1]. Currently, South Korea has the highest suicide rate among OECD countries...
The practical utilisation of microstructures, including those in MEMS (Microelectromechanical Systems), is currently advancing across diverse industries. The behaviour of materials at the micro-scale differs from that at the macro-scale, necessitating the assessment of fatigue life in micro-size specimens to ensure the reliability of microstructures (1). Typically, mechanical property...
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OverView
Obesity can promote a variety of adult diseases. It can be difficult for people in this group to even start exercising. Develop a game to help people in this group get into the habit of exercising more easily.
The definition of a morbidly obese person is someone who has been determined to be morbidly obese by a clinic center. -
The importance of research
Obesity is the...
This study aims to develop a technology for detecting leaks in water pipelines by deploying a robot inside the pipeline and controlling it to explore areas suspected of leaks. The robot design considers fluid dynamics to ensure stable operation inside the pipeline, which is validated through experimental testing. Additionally, visual and auditory sensors are utilized to collect information...
(Overview and Significance of the Study)
Infant language development[1] accelerates rapidly between the ages of 5 and 7. The ability to accurately communicate one's intentions is a necessary component of interpersonal relationships and social interaction. According to KOSIS[2], in 2020, approximately 15.4% of children aged 0-9 years had a pronunciation disorder (articulation disorder)....
Altitude compensation nozzle can improve the performance of launch vehicle and reduce development cost by changing only the nozzle shape for the same engine. Among these altitude compensation nozzles, the ED (Expanion-Deflection) nozzle has an altitude compensation effect through a change in the effective nozzle exit area using a pintle fixed therein. In addition, the ED nozzle has the...
Dementia[1] refers to a clinical syndrome where cognitive functions such as memory, language, and judgment gradually decline, leading to an inability to perform daily activities properly. The cause of dementia includes all conditions that can cause overall brain dysfunction. It is a disorder in which numerous nerve cells in the brain degenerate, brain tissue is lost, and the brain shrinks....
The ED nozzle is a type of altitude compensation nozzle that can be used for space launch vehicles. The ED nozzle forms an open wake with an effective area smaller than the normal nozzle exit area at low altitude. When the nozzle pressure ratio increases at high altitude, a closed wake is formed that increases the nozzle effective area. Transition is when the flow in an ED nozzle changes from...
This study aimed to develop an algorithm for measuring carotid artery stenosis using both deep learning and statistical models based on carotid ultrasound images. Carotid artery stenosis is a common clinical condition characterized by the narrowing of the carotid arteries, which are the major blood vessels that supply the brain. The condition is typically caused by atherosclerosis, a buildup...
Depression is a complex mental disorder that can be triggered by various mental stresses resulting from negative experiences. It has a significant impact on quality of life and is known to even lead to suicidal impulses. [2] Previous studies have confirmed the association between vitamin D and depression, which has shown a high incidence rate worldwide after the COVID-19 pandemic. In...
An ED(Expansion Deflection) nozzle, suggested by G. V. R. Rao in the 1960s, is characterized by the presence of a pintle at the center of the nozzle[1]. With this structural feature, it was anticipated that the ED nozzle could achieve a reduced length compared to the bell nozzle while maintaining the same performance. To validate this, the European Space Agency(ESA) conducted research on...
Obsessive-compulsive disorder is known for characteristics of repetitive-intrusive obsessive thought and persistent-repetitive behaviors that are intended to neutralize thoughts in order to reduce anxiety.
[1] The lifetime prevalence of obsessive-compulsive disorder is 2-3%. Obsessive-compulsive disorder is known to make patients waste time, cause severe distress, and impair their...
Unlike a turbo pump cycle, an electric pump-fed cycle, which is one of the propellant supply systems for liquid rocket engine, uses an electric motor to drive a pump. unlike a turbo pump cycle. It is relatively simple in configuration compared to a turbo pump cycle, and is conducive to thrust control technology because a propellant flow rate can be adjusted by controlling a pump rotation...
An electric pump-fed cycle is a rocket engine cycle that uses an electric motor to drive a pump. Another cycle that uses a pump, a gas-generator cycle, uses some of propellants to drive a gas generator and turbine. In contrast, an electric pump-fed cycle has the advantage that all propellants can be used for thrust because it replaces turbine and gas-generator with an electric motor[1]. Also,...
The battery industry is currently growing by using lithium-ion batteries, which are used in various wireless machines and equipment due to their excellent storage capacity and energy efficiency. These outstanding performance features have expanded the range of battery applications beyond essential devices in modern society, such as automobiles, mobility devices, and smart gadgets, to diverse...
To safeguard the increasingly deteriorating environment, the Life Cycle Assessment (LCA) has been introduced as a tool to identify the underlying environmental factors and suggest better solutions. However, the conventional LCA methodology has clear limitations as it is only suitable for static situations. In other words, the current methodology cannot cover a significant portion of ships...
Waterborne transport constitutes a significant proportion of greenhouse gas (GHG) emissions in the European Union (EU), and with growing demand, this figure continues to rise. In alignment with the European Green Deal Strategy, a substantial reduction of 90% in emissions by 2050 is targeted, necessitating the adoption of more sustainable and cleaner alternatives that are accessible,...
Contrails are trails of ice crystals formed by the exhaust of aircraft engines, and form in sufficiently cold and humid air when water vapour in the engine exhaust freezes into ice crystals. Although the physics of contrail formation and how they affect the climate are ambiguous, long-lived contrails, also referred to as aircraft-induced cloudiness (AIC), dominate the non-CO2 impacts of...
Obesity is one of the main causes of a chronic disease. National obesity population is increasing year by year, and due to Covid-19, physical activity is decreased and food intake is increased by 40%[1]. Physical activity such as exercise is more efficient when doing with other than doing alone[2][3], so we planned this project to effectively prevent and treat obesity through cooperative...
Understanding the combustion processes under transcritical or supercritical conditions is vital for optimizing combustion systems and advancing our knowledge of fluid dynamics under extreme conditions. In this study, we have investigated the phase change characteristics of cyclopentane, a surrogate fuel, under varying conditions near the critical point, using a high-pressure spray chamber...
The UK Government has funded a project called the Zero-Emission Multi-Fuel Station (ZEMFS), which aims to develop a novel multi-fuel station that can provide three fuelling options for small craft including liquid hydrogen, compressed gaseous hydrogen, and electric charging. This project is scheduled to be operational by March 2025. Liquid hydrogen (LH2) is used as the basis for fuelling...
In order to use hydrogen as fuel, it must be stored in transportation. The method of storing hydrogen can be divided into a physical storage method and a material-based storage method. In physical hydrogen storage methods, there are compressed gaseous hydrogen (CGH2), liquid hydrogen (LH2) and cryo-compressed hydrogen (CcH2). CGH2 can be handled easily, but the storage density is low. High...
Galectins, small soluble β-galactose-binding proteins, are expressed and secreted by tissue cells under normal and pathological conditions. Fifteen different galectins have been identified in mammals, with a subset (Gal-1, Gal-3, Gal-7, Gal-8, and Gal-9) known to be dysregulated during diseases such as cancer, infections, and inflammatory conditions like bowel diseases and arthritis. In these...
Globally, as an environmental regulation to reduce carbon emissions, research on weight reduction of automobiles is being actively conducted, and the mainly used material is being changed from steel to aluminum. Aluminum has a specific gravity of 1/3 that of steel, which is effective for weight reduction, but has a disadvantage of lower maximum strength and lower elongation than steel...
When fiber-reinforced composites are manufactured using 3D-printing technologies, many advantages like a high production efficiency, low costs, an easy accessibility and the possibility to tailor the fiber architecture directly and individually to desired load paths can be achieved. However, due to low mechanical properties and missing functional characteristics of the composite constituents,...
Hydrogen (H2) and methane (CH4) are the two important energy carriers and are usually considered as the cleanest energy form, when they are coming from biomass. However, their content in the biogas is far below the standard limit (>95%), which limits their application without biogas upgrading. Autogenerative high-pressure digestion has the advantage of producing high-calorific biogas directly...
The marine ecosystem is threatened by rapidly changing climate change. Coral plays an important role in this marine ecosystem, such as providing shelter, food, and a place for reproduction of other marine life. In this regard, basic studies necessary for the preservation of coral living in Korea are insufficient, and studies related to larvae, the initial stage of occurrence of coral, are more...
Raman spectroscopy is a powerful laser-based diagnostic technique to detect various species simultaneously and analyze them quantitatively. It is often employed to study chemical species in flames where an understanding of detailed reaction mechanisms is required. However, the application has been limited to studying major species due to the weak intensities of Raman scattering signals. In...
