http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
S.I. 엔진의 써모스텟인자가 엔진 냉각수온도에 미치는 영향
김물시,원종필,박경석 慶熙大學校 大學院 1993 高凰論集 Vol.12 No.-
This paper reviews the need for engine cooling to maintain stable working and engine performance. It is well known that the quantity of emissions, fuel consumption and torque are affected by engine temperature for an automotive engine. Coolant temperature is measured at some locations. Parameters which are necessary for the optimum design of thermostat to maintain the best engine performance are determined. And factors that cause coolant temperature unstable are determinded. The duration of hunting phenomenon(unstable coolant temperature variation) is studied.
김물결(Mul Kyel Kim),김광만(Kwang-Mahn Kim) 대한치과의사협회 2016 대한치과의사협회지 Vol.54 No.10
Dentin bonding systems are unique dental materials which are rapidly evolute and essential materials for bonding of restorative materials to dentin. Now, 4th generation, 5th generation, 6th generation and 7th generation of dentin bonding systems are used in clinic. We investigated the frequency, motivation of choosing dentin bonding systems and satisfaction of them by survey in 2014. 5th generation of dentin bonding systems are mostly used in Korea and young dentist have tendency to choose newly developed dentin bonding systems.
CAES(Compresses Air Energy Storage) 지하 저장 공동 개발에 따른 리스크 사정
윤용균(Yong-Kyun Yoon),서샘물(Saem-Mul Seo),최병희(Byung-Hee Choi) 한국암반공학회 2013 터널과지하공간 Vol.23 No.4
본 연구의 목적은 지하공동 내에 고압 압축공기를 저장하는 경우 발생할 수 있는 리스크를 평가하는 것이다. 문헌 조사와 CAES의 특성에 대한 연구를 통해 CAES 지하 저장 공동 개발과 관련된 리스크 요인을 선정하였다. 대분류 리스크 요인으로 기획ㆍ설계단계, 시공단계, 운영ㆍ유지관리단계의 3개를 고려하였으며, 중분류 리스크 요인으로 8개를, 소분류 리스크 요인으로 총 24개의 리스크 인자들을 선정하였다. 전문가 설문을 통해 얻어진 자료를 분석하기 위하여 AHP 기법을 적용하였으며 리스크 상호 간 상대적 중요도를 평가하였다. 해석 결과 대분류에서는 운영ㆍ유지관리단계 리스크, 중분류에서는 품질ㆍ안전 관련 리스크, 소분류에서는 압축공기 저장용 내조시스템의 기밀성 확보 실패가 가장 큰 리스크로 평가되었다. The objective of this study is to assess risks which might occur in connection with the storage of the highly compressed air in underground opening. Risk factors were selected throughout literature survey and analysis for the characteristic of CAES. Large risk factors were categorized in three components; planning and design phase, construction phase, and operation & maintenance phases. Large category was composed of 8 medium risk groups and 24 sub-risks. AHP technique was applied in order to analyze the questionnaires answered by experts and high-risk factors were selected by evaluating the relative importance of risks. AHP analysis showed that the operation & maintenance phases are the highest risk group among three components of large category and the highest risk group of eight medium risk groups is risk associated with the quality and safety. Risk having the highest risk level in 24 sub-risks is evaluated to be a failure of tightness security of inner containment storing compressed air.
자율주행형 공유차량의 소유 만족감 충족을 위한 UX디자인 연구 - 탑승단계에서의 커스터마이징을 중심으로
이다물,간예찬,김재엽,Lee, Da-Mul,Kan, Yea-Chan,Kim, Jae-Yeop 한국디지털정책학회 2021 디지털융복합연구 Vol.19 No.4
자율주행 기술의 발달로 자율주행형 공유 차량에 대한 기대감이 확산하고 있지만, 공유 차량에서 '소유 만족감'을 느끼기 힘든 것이 사실이다. 본 논문에서는 자율주행형 공유 차량 탑승 단계에서의 커스터마이징을 통해 이러한 소유 만족감이 충족될 수 있는지에 대해 연구하였다. 이를 위해 선행연구 조사와 현재 공유 차량 이용상에서 만족/불편 요소에 사전조사를 진행했다. 이후, 커스터마이징 요소에 대한 선호도와 각 요소가 소유 만족도에 미치는 영향을 CVT를 통해 검증하였다. 사전조사 결과 후각적 요소와 인터랙션 요소가 소유 만족도에 더 큰 만족도를 주며, CVT 결과 탑승 요소의 커스터마이징을 통해 소유 만족도 충족이 가능할 것으로 나타났다. 본 연구를 향후 자율주행 차량의 인터랙션 디자인과 공유 차량의 서비스 디자인 연구를 위한 기초 자료로서 제시하였다. In this paper, we study whether customizing at the self-driving shared vehicle boarding stage can satisfy ownership satisfaction. To this end, a preliminary survey was conducted on the general public on the factors of satisfaction/uncomfortable in the current shared vehicle use along with a prior research survey. Subsequently, we validate the preference for customizing elements and their impact on ownership satisfaction through CVT. Pre-investigation has shown that olfactory and interaction elements give greater satisfaction to ownership satisfaction, and CVT results show that the customizing of boarding elements will enable the satisfaction of ownership satisfaction.
Park, Sun-Young,Elbersen, Rick,Huskens, Jurriaan,Gardeniers, Han,Lee, Joo-Yul,Mul, Guido,Heo, Jinhee IOP 2017 Nanotechnology Vol.28 No.29
<P>Solar-to-hydrogen conversion by water splitting in photoelectrochemical cells (PECs) is a promising approach to alleviate problems associated with intermittency in solar energy supply and demand. Several interfacial resistances in photoelectrodes limit the performance of such cells, while the properties of interfaces are not easy to analyze <I>in situ</I>. We applied photoconductive-AFM to analyze the performance of WO<SUB>3</SUB>/p<SUP>+</SUP>n Si photoanodes, containing an ultra-thin metal interface of either Au or Pt. The Au interface consisted of Au nanoparticles with well-ordered interspacing, while Pt was present in the form of a continuous film. Photoconductive-AFM data show that upon illumination significantly larger currents are measured for the WO<SUB>3</SUB>/p<SUP>+</SUP>n Si anode equipped with the Au interface, as compared to the WO<SUB>3</SUB>/p<SUP>+</SUP>n Si anode with the Pt interface, in agreement with the better performance of the former electrode in a photoelectrochemical cell. The remarkable performance of the Au-containing electrode is proposed to be the result of favorable electron-hole recombination rates induced by the Au nanoparticles in a plasmon resonance excited state.</P>