Y. K. Kim
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View article: An Operation Characteristics and Implementation of 1kW Intelligent Blackout Protection Device in LVDC Distribution System
An Operation Characteristics and Implementation of 1kW Intelligent Blackout Protection Device in LVDC Distribution System Open
View article: Evaluation of a modified formalism for precision electron beam dosimetry compared to TG-51 and TRS-398
Evaluation of a modified formalism for precision electron beam dosimetry compared to TG-51 and TRS-398 Open
This study supports the reliability of the modified formalism for electron beam reference dosimetry with chambers calibrated under 60Co, thereby reducing uncertainty. The modified formalism yielded consistent results within smal…
View article: The GRB221009A gamma-ray burst as revealed by the gamma-ray spectrometer onboard the KPLO (Danuri)
The GRB221009A gamma-ray burst as revealed by the gamma-ray spectrometer onboard the KPLO (Danuri) Open
The strongest gamma-ray burst (GRB) of the century, GRB20221009A, has been detected by the Korean Pathfinder Lunar Orbiter Gamma-ray Spectrometer (KGRS) instrument onboard the Korean Pathfinder Lunar Orbiter (KPLO). KGRS uses a LaBr3<…
View article: A Study on the Implementation of Evaluation Test Device for Electrical Hazards in ESS
A Study on the Implementation of Evaluation Test Device for Electrical Hazards in ESS Open
최근, 에너지저장장치(ESS)에서 화재사고가 빈번하게 발생하고 있어, 정부에서는 민관 합동 조사 위원회를 설치하여 ESS의 화재원인을 추정하여 다양한 대응방안을 제시하고 있는데, 이 가운데 전기적 위해요인에 대한 배터리 보호시스템이 미흡한 것으로 평가되어 적정한 보호기기들이 ESS에 적용되고 있다. 따라서, 본 논문에서는 전기적 위해요인으로 부터 ESS를 보호하기 위한 지락검출장치(IMD), 서지보호장치(SPD), 순환전류 …
View article: Estimation method of Optimal Capacity for VPL to improve Power curtailment of Renewable energy sources
Estimation method of Optimal Capacity for VPL to improve Power curtailment of Renewable energy sources Open
최근, 2030 국가 온실가스 감축 기본 로드맵 및 제10차 전력수급 기본계획에 따라 신재생에너지의 보급 속도가 급격하게 증가하고 있지만, 전력공급과 수요의 불균형에 의해 신재생에너지 출력제한이 빈번하게 발생하고 있는 실정이다. 이러한 문제를 해결하기 위하여 전력설비 인프라의 증설이 요구되지만, 막대한 건설비용과 오랜 건설기간이 소요되므로 이를 극복하기 위한 연구의 필요성이 증가하고 있다. 따라서, 본 논문에서는 신재생에너지…
View article: Second intercomparison on electron paramagnetic resonance (EPR) retrospective dosimetry in Korea using hydroxyapatite
Second intercomparison on electron paramagnetic resonance (EPR) retrospective dosimetry in Korea using hydroxyapatite Open
The Korea retrospective dosimetry (KREDOS)–electron paramagnetic resonance (EPR) group undertook an intercomparison investigation utilizing hydroxyapatite. This analysis involved four institutions: the Korea Institute of Radiological and M…
View article: Load Prediction Algorithm Applied with Indoor Environment Sensing in University Buildings
Load Prediction Algorithm Applied with Indoor Environment Sensing in University Buildings Open
Recently, building automation system (BAS) and building energy management system (BEMS) technologies have been applied to efficiently reduce the energy consumption of buildings. In addition, studies on utilizing large quantities of buildin…
View article: Barrier-Free Semimetallic Ptse2 Contact Formation in Two-Dimensional Ptse2/Ptse2 Homostructure for High-Performance Field-Effect Transistors
Barrier-Free Semimetallic Ptse2 Contact Formation in Two-Dimensional Ptse2/Ptse2 Homostructure for High-Performance Field-Effect Transistors Open
View article: A Study Revitalization of Domestic Private Makerspace: Focusing on the Paradox of Publicity
A Study Revitalization of Domestic Private Makerspace: Focusing on the Paradox of Publicity Open
The Korean government is preparing a plan to spread Korean-style makerspaces in 2017 and is planning to build more than 360 makerspaces by 2022. In the early days of Maker Space, various types of related facilities were created mainly by t…
View article: The Improvement Measures of Young Farmer Fostering Policy
The Improvement Measures of Young Farmer Fostering Policy Open
본 연구에서는 청년농업인의 여러 지원정책과 사업 중 ‘청년농업인 영농정착 지원사업’에 참여한 청년농업인을 대상으로 영농현황, 주 재배작목 유형, 영농정착단계별 장애요인, 지원정책의 중요도 및 만족도, 청년농업인 활성화 방안에 대해서 조사하였다. 주요 결과로는 첫째, 청년농업인을 청년창업농과 후계농업인으로 구분한 결과, 후계농업인의 연간 매출액이 더 높은 것으로 나타났다. 둘째, 창업농의 36.9%, 후계농의 30.9%가 채소…
View article: Performance Comparison and Analysis of the Curtain-Wall-Type Liquid-Type Photovoltaic Thermal Unit According to the Pipe Connection Method
Performance Comparison and Analysis of the Curtain-Wall-Type Liquid-Type Photovoltaic Thermal Unit According to the Pipe Connection Method Open
Recently, there has been increasing attention on the use of renewable energy in buildings, particularly, the photovoltaic thermal (PVT) system that uses both solar power and thermal energy. However, there is a limit to adopting the PVT sys…
View article: Multi-physics modeling of electromagnetically driven surface plasma discharges
Multi-physics modeling of electromagnetically driven surface plasma discharges Open
This dissertation presents the computational modeling of non-equilibrium plasma discharges on an electromagnetically driven surface and its application to plasma assisted combustion. We address challenges often encountered in high pressure…
View article: Evaluation of the Accuracy of Dental Prostheses manufactured by Metal 3D Printer
Evaluation of the Accuracy of Dental Prostheses manufactured by Metal 3D Printer Open
Recently, in the era of the fourth industrial revolution, the main technology trend of digital dentistry is to make dental prostheses using 3D printer. In this study, we evaluated the accuracy of dental prostheses(coping) made with metal 3…
View article: Comparison of Primary Energy Requirement of Neighborhood Facilities according to Heat Source Types and Window Wall Ratio by Usage Purpose
Comparison of Primary Energy Requirement of Neighborhood Facilities according to Heat Source Types and Window Wall Ratio by Usage Purpose Open
This study examined heat source systems for neighborhood facilities close to residential buildings and calculated primary energy consumption on the window wall ratio per facility use through the ECO2_v2016 program. The primary energy consu…
View article: Study on shipment time of low-temperature stored apple
Study on shipment time of low-temperature stored apple Open
View article: Proposal of New Correction Factors for New and Renewable Energy Sources in Public Building
Proposal of New Correction Factors for New and Renewable Energy Sources in Public Building Open
The government introduced a mandatory installation system of new & renewable energy for public building to meet the target of greenhouse gas reduction and also suggest a correction factor for new renewable energy to expand the installation…
View article: Design of a hardware track finder (Fast Tracker) for the ATLAS trigger
Design of a hardware track finder (Fast Tracker) for the ATLAS trigger Open
The use of tracking information at the trigger level in the LHC Run II period is crucial for the trigger an data acquisition (TDAQ) system and will be even more so as contemporary collisions that occur at every bunch crossing will increase…
View article: A Study on System Optimization according to the Supply Obligations Rate of New and Renewable Energy at an Indoor Gymnasium
A Study on System Optimization according to the Supply Obligations Rate of New and Renewable Energy at an Indoor Gymnasium Open
Instatutesonthepromotionofdistributionofnewandrenewableenergy,whichwererevisedin2014,daylightsystemandfuelcellwereaddedinadditiontoexistingnewandrenewableenergysources.Thisstudy,therefore,aimedatsettinguptargetsfortheintroductionofdaylight…
View article: Review of the Base of the Pyramid (BoP) Business Concept and Its Strategic Evolution: Case Study of Solar Lantern in Tanzania
Review of the Base of the Pyramid (BoP) Business Concept and Its Strategic Evolution: Case Study of Solar Lantern in Tanzania Open