A5101901330- Graphene research and applications
- Process Optimization and Integration
- Perovskite Materials and Applications
- Ferroelectric and Piezoelectric Materials
- Semiconductor materials and interfaces
- Structural Load-Bearing Analysis
- Seismic Performance and Analysis
- Advanced Thermodynamics and Statistical Mechanics
- Semiconductor materials and devices
- Advanced Battery Technologies Research
- Conducting polymers and applications
- Advanced Memory and Neural Computing
- Antibiotics Pharmacokinetics and Efficacy
- Chalcogenide Semiconductor Thin Films
- Engineering Education and Curriculum Development
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Antimicrobial Resistance in Staphylococcus
- Biofuel production and bioconversion
- Structural Engineering and Vibration Analysis
- Engineering Education and Pedagogy
- Enzyme Production and Characterization
- Polysaccharides and Plant Cell Walls
- Experimental Learning in Engineering
- Antibiotic Resistance in Bacteria
Ulsan National Institute of Science and Technology
2021-2024
Marquette University
2006-2024
Konkuk University
2020-2024
American Society For Engineering Education
2024
Kyungpook National University
2024
In this study, a novel systematic analysis was conducted to explore the impact of various parameters, including acceptor density (NA), individual layer thickness, defect density, interface and metal electrode work function, on efficiency within FTO/ZnO/CsSnI3/NiOx/Au perovskite solar cell structure through SCAPS-1D (Solar Cell Capacitance Simulator in 1 Dimension) simulation. ZnO served as electron transport (ETL), CsSnI3 absorption (PAL), NiOx hole (HTL), all contributing optimization...
Abstract It is recognized worldwide that first-year engineering education critical for new entry-level students to obtain a clear vision and direction their future. The discovery course developed at Marquette University – Opus College of Engineering offers freshman the opportunity discover explore potential through various contents/topics activities integrated with entrepreneurially minded learning (EML). As result, are able develop value as future engineers by gathering assimilating...
Abstract A new concept of read-out method for ferroelectric random-access memory (FeRAM) using a graphene layer as the channel material bottom-gated field effect transistor structure is demonstrated experimentally. The transconductance found to change its sign depending on direction spontaneous polarization (SP) in underlying layer. This indicates that state FeRAM, specified by SP layer, can be sensed unambiguously with measurements. With proposed method, it possible construct an array cells...
Abstract The effective work‐function of metal electrode is one the major factors to determine threshold voltage metal/oxide/semiconductor junction. In this work, it demonstrated experimentally that Aluminum (Al) in Al/SiO 2 /n‐Si junction increases significantly by ≈1.04 eV with graphene interlayer inserted at interface. device‐physical analysis solving Poisson equation analytically provided when flat‐band applied junction, supporting large tuning Al may originate from electric dipole layer...
2방향 중공슬래브 시스템은 슬래브 두께가 증가해도 자중은 크게 증가하지 않으면서 솔리드 슬래브에 비해서 휨강성이 저하되지 않는 장점이 있다. 따라서 최근 넓은 바닥판 구조에 대한 수요가 커지면서 시스템에 관심이 증가하고 그러나 이러한 장스팬 구조의 경우 진동의 증가에 의한 사용성에 문제가 발생할 수 있고 특히 중공슬래브의 기존의 구조시스템과 동적특성이 상이하다. 본 연구에서는 라멘조 시스템과 시스템의 바닥진동성능을 보행하중을 가하여 검토해 보았다. 해석의 효율성을 위하여 동적특성을 정확히 나타낼 있는 등가의 플레이트 모델을 사용하여 시간이력해석을 수행하였다. 해석결과를 바탕으로 일본건축학회와 미국표준협회에서 제안하는 진동성능평가 기준을 이용하여 진동성능 평가를 수행한 결과 중공슬래브가 사무실 수준의 진동성능을 만족하고 것으로 나타났다. Considering that the weight of a biaxial hollow slab system is not increased...
It has been proposed to develop a component analysis module for each energy and heat exchanging in system. A system connectivity matrix developed evaluate the mass flow characteristics between components performance. The modules, conjunction with matrix, are exclusively used calculate overall local thermal In this work, two sample conversion systems were selected; vaporcompression refrigeration boiler heating This paper examines development of matrices corresponding iterative and/or...
This paper examines the development of individual component analysis modules applied to two selected energy conversion systems; a vapor-compression refrigeration system and boiler heating system. The components used in this work are evaporator, condenser, expansion valve, mixing chamber, open feedwater heater, pipe, boiler, pump, compressor. developed able apply input data specifications estimate corresponding thermal performance component. Upon investigation case studies presented, it was...