A5103225129- Education, Safety, and Science Studies
- Fire effects on concrete materials
- Fire dynamics and safety research
- Evacuation and Crowd Dynamics
- Diverse Approaches in Healthcare and Education Studies
- Structural Response to Dynamic Loads
- Educational Systems and Policies
- Advancements in Solid Oxide Fuel Cells
- Advanced Sensor and Energy Harvesting Materials
- Muscle activation and electromyography studies
- Concrete Properties and Behavior
- Marine and Coastal Research
- Combustion and Detonation Processes
- Fire Detection and Safety Systems
- Risk and Safety Analysis
- Stroke Rehabilitation and Recovery
- Structural Behavior of Reinforced Concrete
- Opinion Dynamics and Social Influence
- Advancements in Battery Materials
- Complex Network Analysis Techniques
- Innovative concrete reinforcement materials
- Hate Speech and Cyberbullying Detection
- Electronic and Structural Properties of Oxides
- Thermal and Kinetic Analysis
- Catalysis and Oxidation Reactions
Georgia Institute of Technology
2024-2025
Korea Institute of Civil Engineering and Building Technology
2021-2024
Korea Military Academy
2019-2022
Hoseo University
2011-2021
Korea Advanced Institute of Science and Technology
2019
Animal and Plant Quarantine Agency
2014
Himchan Hospital
2009
Korea Advanced Nano Fab Center
2008
Abstract The age and stroke-associated decline in musculoskeletal strength degrades the ability to perform daily human tasks using upper extremities. Here, we introduce an intelligent upper-limb exoskeleton system that utilizes deep learning predict intention for augmentation. embedded soft wearable sensors provide sensory feedback by collecting real-time muscle activities, which are simultaneously computed determine user’s intended movement. Cloud-based predicts four joint motions with...
Achieving large-scale, cost-effective, and reproducible manufacturing of stem cells with the existing devices is challenging. Traditional single-use cell-bag bioreactors, limited by their rigid single-point sensors, struggle accuracy scalability for high-quality cell manufacturing. Here, we introduce a smart bioreactor system that enables multi-spatial sensing real-time, wireless culture monitoring. This scalable includes low-profile, label-free thin-film sensor array electronics integrated...
Electrocardiogram (ECG) monitoring has recently been an important indicator of cardiac health diagnosis. In the past, ECG could be measured under limited conditions in hospitals with 12‐lead electrode systems. Recently, portable and wearable devices have offered continuous, real‐time signals real life. However, developing sensors that provide low‐motion artifacts high‐quality during exercise is still challenging. Herein, this review reports a systematic summary key characteristics,...
Recognizing human body motions opens possibilities for real-time observation of users' daily activities, revolutionizing continuous healthcare and rehabilitation. While some wearable sensors show their capabilities in detecting movements, no prior work could detect full-body with wireless devices. Here, we introduce a soft electronic textile-integrated system, including nanomaterials flexible sensors, which enables detection various movements using the combination sensor suit...
Flexible Wearable Electrocardiogram Devices In article 2300169, Woon-Hong Yeo and co-workers discuss the key properties requirements of flexible wearable electrocardiogram devices for early diagnosis heart dysfunction during dynamic motions, including exercise.
Understanding how much users disclose personal information in Online Social Networks (OSN) has served various scenarios such as maintaining social relationships and customer segmentation. Prior studies on self-disclosure have relied surveys or users' direct networks. These approaches, however, cannot represent the whole population nor consider user dynamics at community level.
Preclinical studies are crucial for developing amyotrophic lateral sclerosis drugs. Current FDA-approved drugs have been created by monitoring limb muscle function and histological analysis of model animals. Drug candidates this disease yet to be tested bulbar-onset type due the limitations traditional preclinical tools: excessive animal use discrete detection progress. Here, our study introduces an all-in-one, wireless, integrated wearable system facilitating continuous drug efficacy...
Recent advancements in printing technologies allow for fabricating various wearable sensors, circuits, and integrated electronics. However, most tools have limited ranges of handling ink viscosity, a short working distance, feature size developing sophisticated Here, this paper introduces an all-in-one electronic system via multilayer, multinanomaterial printing. Versatile, high-resolution aerosol-jet could successfully print Cu nanoparticles, Ag PEDOT:PSS, polyimide (PI) to manufacture...
본 연구는 재난약자의 피난안전을 위한 기초 DATA를 구축하기 위해 실시한 조사연구로서 노인요양시설의 화재사례 분석을 통해 문제점을 도출하였으며, 이에 따른 개선방안을 도출하기 관리자를 대상으로 소방안전의식에 대한 실태조사를 실시하였다. 전국의 노인요양시설 중 30개소 기관의 근무자 350명을 소방관리 인식측면과 소방관련규정 인지측면에 대해 설문을 실시하였고, 그 결과 현재 노인요양시설은 정기적인 안전교육 및 소방훈련이 실시되도록 규정되고 있음에도 근무자들의 피난안전의식 등은 낮게 나타났기 때문에 이러한 상황으로 인하여 화재발생시 피해가 확대될 가능성이 있을것으로 사료되며, 이를 방지하기 대책이 필요할 것으로 판단된다. As a research study conducted to basic data for escape safety of vulnerable people disaster, this indicated problem through an analysis on fire...
Performance-based design (PBD) that is introduced to secure the fire safety of buildings requires engineering analysis such as simulation. However, in domestic applications, it dependent on standards and data from U.S.A. Japan. Therefore, this study, we measured fire-load combustibles office basic method. We also selected main combustible commonly investigated Tackett Buildings which was experimented using hood aroom-corner testing machine. In addition, growth rate derived based results...
In this study, combustibles investigation and fire growth rate experiment were performed for predicting initial behavior in buildings. Combustibles was residential buildings, which is most frequently affected by Korea. Spatial characteristics properties separately investigated, occupied area layout of identified to produce general models. Of the models, room selected test a single compartment. From test, propagation each combustible identified, delayed compared summed heat release...
Density functional theory (DFT) is a widely used computational method for predicting the physical and chemical properties of metals organometals. As number electrons orbitals in an atom increases, DFT calculations actinide complexes become more demanding due to increased complexity. Moreover, reasonable levels calculating structures are not extensively studied. In this study, 38 calculations, based on various combinations, were performed molecules containing two representative actinides...
The age and stroke-associated decline in musculoskeletal strength degrades the ability to perform daily human tasks using upper extremities. Although there are a few examples of exoskeletons, they need manual operations due absence sensor feedback no intention prediction movements. Here, we introduce an intelligent upper-limb exoskeleton system that uses cloud-based deep learning predict for augmentation. embedded soft wearable sensors provide sensory by collecting real-time muscle signals,...
The high energy density of hydrogen, in addition to its convenience for transportation and infinite resource base, make it a promising carrier. Solid oxide fuel cells (SOFCs), particular—which utilize the oxidation hydrogen at temperatures generate electricity—have been studied widely because their efficiency relatively low cost. However, lack suitable mass production method currently precludes commercialization SOFCs. To address this, we herein evaluate tape-casting as means reduce cost...
화재 시 고온에 고강도콘크리트가 노출되었을 경우에는 심각한 성능저하 및 손상이 발생할 가능성이 매우 높다. 고강도 콘크리트는 수밀성으로 인해 폭렬 현상이 더욱 심하게 것으로 판단되며, 열전도율은 물질의 종류, 온도구배 형상에 크게 의존한다. 또한 콘크리트 내부에서 물리 화학적 반응이 중요한 역할을 할 판단된다. 본 연구에서는 노출된 고강도콘크리트의 열적특성을 검토하기 위하여 <TEX>$200{\sim}800^{\circ}C$</TEX>의 측정온도에서 열선법에 의해 열전도율(W/mK), 열팽창율(<TEX>$m^2/s$</TEX>), 비열(J/gK)을 측정하였고, 포로시메타를 이용 누적세공량을 측정하여 내화성능확보를 위한 기초 자료를 제시하였다. There is a strong possibility that high strength concrete(HSC) has serious chance of decreasing efficiency or loss dfficiency in...
The objective of this research is to clarify the reasons for explosive spalling high strength concrete exposed heat flux during fire. effect moisture content and non-uniform heating was examined by ISO 834 standard fire tests. specimens were small columns-shaped (100x100x400 mm) made 100 MPa compressive concrete. Two types mix design applied. One is, with fibre reinforcement at 1.5 kg/m3 other without reinforcement. adjusted differing curing conditions either in water or air. Resultant...
본 실험은 산마늘의 산초 증식과 인경 형성에 적합한 생물반응기 배양방식과 형성시 배양방식에 따른 당 대사를 구명하고자 실시되었다. 다신초 증식에는 생물반응기에 망을 걸고 배지에 절편체를 접하게 배양한 RC와 MRC (13-15개)에서 가장 좋은 결과를 얻었다. 인경형성과 비대에는 간헐적으로 배지를 공급해준 E&FS에서 93.4％의 인경형성이 이루어졌고 크기에 있어서도 균일하였다. MRC에서 형성된 인경은 뿌리가 무성하였으며 인경의 크기도 균일하지 않았다. 배양방식별로 수확한 인경내 유리당 함량은 전반적으로 E&FS.에서 낮았던데 반해 전분 높았다. 배지내 sucrose, glucose와 fructose는 비대 시기에 감사되었는데 이는 첨가한 sucrose가 가수분해 되기도 전에 glucose나 fructose와 함께 식물체로 바로 이용됨을 보여주는 것이었다. A suitable bioreactor culture system for shoot proliferation and...