A5100639630- Advanced Sensor and Energy Harvesting Materials
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Advancements in Battery Materials
- Tactile and Sensory Interactions
- Remote Sensing and LiDAR Applications
- Transportation and Mobility Innovations
- Non-Invasive Vital Sign Monitoring
- Vehicle Routing Optimization Methods
- Video Surveillance and Tracking Methods
- Concrete and Cement Materials Research
- Advanced Memory and Neural Computing
- Advanced Battery Technologies Research
- EEG and Brain-Computer Interfaces
- Phase Equilibria and Thermodynamics
- Advanced Manufacturing and Logistics Optimization
- Interactive and Immersive Displays
- Autonomous Vehicle Technology and Safety
- Space exploration and regulation
- Electrocatalysts for Energy Conversion
- Technology Assessment and Management
- Control Systems and Identification
- Advanced Thermodynamics and Statistical Mechanics
- Fault Detection and Control Systems
- ECG Monitoring and Analysis
Ulsan National Institute of Science and Technology
2022-2023
Korea Institute of Machinery and Materials
2019-2020
Chungnam National University
2019-2020
Daegu Gyeongbuk Institute of Science and Technology
2019
Sungkyunkwan University
2012
University of Akron
2010
Tohoku University
1987
Multifunctional electronic skins have attracted considerable attention for soft electronics including humanoid robots, wearable devices, and health monitoring systems. Simultaneous detection of multiple stimuli in a single self-powered device is desired to simplify artificial somatosensory Here, inspired by the structure function human skin, an ultrasensitive multimodal sensor demonstrated based on interlocked ferroelectric copolymer microstructure. The triboelectric pyroelectric effects...
Abstract In the domains of wearable electronics, robotics, and Internet Things, there is a demand for devices with low power consumption capability multiplex sensing, memory, learning. Triboelectric nanogenerators (TENGs) offer remarkable versatility in this regard, particularly when integrated synaptic transistors that mimic biological synapses. However, conventional TENGs, generating only two spikes per cycle, have limitations used requiring repetitive high‐frequency gating signals to...
We demonstrate that under laser irradiation a tiny amount of Zn infiltrated into the graphene oxide enables massive production multilayered with high electrochemical performance. The was found to lead significant changes in microstructures, morphology, and surface chemistry resulting multilayer graphene. As compared directly produced from raw oxide, Zn-infiltrated showed nearly four times increase energy density. Additional properties promised could be widely used as electrode materials for...
State-of-charge (SOC) is one of the significant indicators to estimate driving range electric vehicle and control alternator conventional engine vehicles as well. Therefore its precise estimation crucial not only for utilizing energy effectively but also preventing critical situations happening power train lengthening lifetime battery. However, lead-acid battery time-variant, highly nonlinear, hysteresis phenomenon causes large errors in SOC especially under frequent discharge/charge. This...
This Letter focuses on extracting the heartbeat information using ultra-wideband impulse radar, and a new method that can extract not only heart rate but also timing of with high accuracy is proposed herein. As first step towards achieving this goal, radar pulses are projected human body, reflected accumulated along time axis at specific intervals. The pass through digital filter to reveal converted greyscale image. A pattern reflects heartbeats used as template find similar patterns in...
Following the previous report on phase equilibria between Na2CO3–Na2O–SiO2 melts and liquid copper, distribution of arsenic antimony have been investigated at 1523 K to investigate optimum conditions for removal these detrimental elements from copper by use soda flux. The obtained results were explained terms oxygen potential soda-ratio in slag, iso-bars ratios illustrated ternary diagram (Na2CO3+Na2O)–SiO2–Cu2O. increase or basicity slag high removability elements. Tri-valent is common with...
본 연구는 뉴스페이스 시대의 특징인 민간 주도의 우주개발 등을 한국군의 군사 우주력 건설과 운영 측면에서 활용할 수 있는 방안을 제시하였다.BR 먼저, 우주작전 환경을 살펴보면 "우주의 평화적 사용"이라는 국제 원칙이 유효하게 작동되고 있으나, 그 내면에는 국가와 기업들의 치열한 이익추구로 갈등과 분쟁이 증가하고 있다. 미국은 민간우주 분야 확대와 정부 차원의 타천체 진출을 병행하고 있으며, 중국은 미국의 독점적 지위를 약화하기 위해 노력하고 러시아는 전통 우주강국으로 평가받고 북한은 연속적인 위성 발사 실패와 같이 기술적으로 미성숙하며, 한국은 우주역량이 주변국 대비 약세로 평가되고 아울러, 행성 탐험 등 심우주의 주도 개척 및 근우주에 대한 민간기업의 영리적 개발, (초)소형위성군의 저궤도 임무 확대, 경제적인 재사용 로켓 발전, 우주공간 내 상업적 협력 등으로 대표되는 요소들이 군사분야에 변혁을 가져오고 있다.BR 우주전략으로 북한에 대해서는 우주우세를 바탕으로 능동적...
Transepidermal water loss (TEWL) is emission from the skin induced by diffusion of molecules. Because TEWL sensitive to damage on outermost layer, it has been utilized as an indicator barrier function. Here, we demonstrate a stretchable hydration sensor monitor based porous thermoplastic polyurethane (TPU) film coated with ion conductive polyvinyl alcohol (PVA)/lithium chloride (LiCl) composite layers. The large surface area and hygroscopic PVA/LiCl layer structure exhibits remarkable...