http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 임태훈(TaeHoon Lim) (검색결과 6 건)
- 무료
- 기관 내 무료
- 유료
-
실차 공조와 비교를 통한 승용차 캐빈 공조 시뮬레이터 개발에 대한 연구
임태훈(Taehoon Lim),신영기(Younggy Shin),김상훈(Sanghun Kim),이창원(Changwon Lee) 대한설비공학회 2016 대한설비공학회 학술발표대회논문집 Vol.2016 No.6
Dynamics of passenger car cabin HVAC is modeled and validated against related test data to develop a simulator which will replace real vehicle HVAC test. For practical use, the simulator should be capable of simulating temperatures at various heights of each seat. In addition, the simulator should work in real time for prototyping of HVAC controller, so its model must not be complicated too much. As a result, the following modeling assumptions are made: 1) Cabin is segmented into 12 lumped zones, 2) mass flows between zones are modeled based on mass conservation and several physically plausible scenarios, and 3) lumped convective and radiative heat transfer. The model was tuned against related HVAC test data. The following were found: 1) lumped thermal mass should vary its size as function of mixing time based on zone velocity, 2) convective heat transfer coefficients should sized based on zone velocity, which is higher in front seats. After such corrections, the simulator showed good agreement with test data.
-
임태훈(Lim, Taehoon) 전북대학교 산업경제연구소 2021 아태경상저널 Vol.13 No.2
본 논문은 46개국의 주식을 대상으로 외국인 지분율이 가격변동성에 미치는 영향을 분석한다. 국제 기관투자자의 주식 보유 데이터를 이용해 분석한 결과, 외국인지분회전율이 적은 주식에서는 외국인 지분율이 높을수록 가격 변동성이 낮았고, 반면에 외국인지분회전율이 높은 주식에서는 외국인 지분율이 높을수록 가격 변동성이 높았다. 이 연구는 외국인 지분율과 가격 변동성을 연구한 기존 논문의 외국인 지분율 데이터의 한계를 극복했다는 점에서 의의가 있으며, 기존 논문들에서 나타난 외국인 투자가 가격변동성에 미치는 영향의 불일치를 설명할 수 있다는 점에서 의의가 있다. This paper analyzes the effect of foreign ownership on price volatility for equities in 46 countries. Using the equity holdings data of internationally active institutional investors, I find that there are positive relationship of foreign ownership and price volatility for equities with high foreign turnovers, but the relationship is negative for equities with low foreign turnovers. This paper contributes to the literature by overcoming the limitations of previously used foreign ownership data, and by reconciling the inconsistency of the effects of foreign investment on price volatility in existing literature.
-
배터리 발열체를 활용한 시스템 벤치 평가 및 고전압 배터리 냉매냉각시스템 성능연구
공태윤(Taeyun Kong),임혜수(Hyesu Lim),김화성(Hwasung Kim),임태훈(Taehoon Lim) 대한기계학회 2019 대한기계학회 춘추학술대회 Vol.2019 No.11
Most car makers are trying to implement electric powertrain to enhance fuel efficiency and meet emission regulations. According to the rising industry and environmental demand for electric vehicles, it is crucial for these vehicles to be equipped with a powerful, safe and efficient energy system that can support long-range driving. As a part of the most important electrified vehicle technology, it is essential to equip the battery cooling system which maintain the battery temperature within temperature limit to prevent thermal runaway, power-fade and life cycle-fade. For the long-range driving, capacity and density of electric vehicle battery system are increased, battery cooling performance also should be improved and it has evolved from air cooling to refrigerant indirect liquid cooling technology. The indirect liquid cooling, advanced than air cooling system in cooling performance, is connected in parallel to the climate control system through a chiller unit and cools the battery by secondary coolant loop which cooled by refrigerant of the primary air conditioning loop. The most common type of battery cooling, for production BEV and some of PHEV, is using the liquid cooling. As a method for further improving cooling performance compared to liquid cooling system, a refrigerant indirect cooling system which removes a secondary heat exchange process and cools a battery directly with a refrigerant has been introduced in the previous research and has been applied to a few vehicles. This paper focuses on verifying cooling performance of the refrigerant direct battery cooling system on system test bench stand. A bench test apparatus was constructed to apply refrigerant flow by production car air conditioning system parts and thermal load by electrical heater instead of real battery cells. As a test result, it was confirmed that the cooling performance of refrigerant direct cooling system could be enhanced about 27% in watt unit compare to that of indirect liquid cooling under same test condition.
-
-
접근성이 용이한 멀티 라이브 스트리밍 커머스 시스템 구축 설계
이재경(JaeKyung Lee),정승환(SeungHwan Jeong),임현섭(Hyunsub Lim),임태훈(TaeHoon Lim),복찬용(Chanyong Bok),박상은(Sangeun Park),이상운(Sangun Lee) 한국방송·미디어공학회 2022 한국방송공학회 학술발표대회 논문집 Vol.2022 No.11
‘코로나19’의 여파로 인해 많은 분야에서 비대면 회의 및 상거래가 활성화되면서 기존 홈쇼핑에서의 방송 시스템 방식이 아닌 간단하게 구성할 수 있는 라이브 커머스의 중요성이 대두되었다. 시스템적으로 간편함을 갖춘 동시에 누구나 쉽게 접근을 할 수 있는 시스템을 구성하여 제안하고자 한다.
-
정종식,문상흡,하흥룡,임태훈 한국화학공학회 1989 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.27 No.4
기공구조가 정해진 담체 위에 금속의 담지량이 높은 촉매를 제조하려면 담체를 금속용액 중에 여러 번 함침시키는 반복함침법을 사용해야 하는 데, 이 연구에서는 이렇게 제조한 촉매의 표면특성을 관찰하였다. 즉, 알루미나 담체를 질산니켈 용액에 함침시키고 이를 건조시킨 후에 다시 질산니켈에 함침시키면 니켈분포가 불균일하고 균열이 심한 촉매입자가 얻어지는 데, 이 문제는 함침과정의 사이에 촉매를 산소처리하면 해결할 수 있었다. 산소처리 온도가 낮을수록 니켈의 분산도는 좋아지지만 담지량이 20 무게% 이상이 되면 처리온도가 큰 영향을 미치지 않았다. 함침이 반복되어 니켈 담지량이 증가하면 니켈입자가 커지면서 촉매 내의 미세기공이 막히거나 또는 기공의 평균크기가 감소하였는 데, 이같은 촉매기공구조의 변화는 촉매의 반응활성에 영향을 미쳤다. 이 연구에서는 니켈의 담지량이 15 무게%가 되어 분산된 니켈의 평균입자 크기가 담체의 최빈 기공크기인 100Å에 가까와 질 때에, 벤젠수소화반응에서 촉매의 반응활성이 급격히 떨어지는 현상을 보였다. Catalysts of high metal loading supported on the carrier of pre-adjusted pore structure may be prepared by repeated impregnation of the carrier with metal salt solution. However, when Ni/Al₂O₃ catalysts were prepared by the repeated impregnation method, the catalysts showed uneven metal distribution and many cracks within the pellets. The problem could be solved by treating the catalysts in oxygen between impregnation steps. Low oxidation temperature was helpful to obtaining small nickel particles dispersed on the carrier, but the temperature effect became insignificant when nickel loading was higher than 20 wt%. As the nickel content of the catalyst increased by repeated impregnation, the nickel particles grew larger, blocking the entrance of some micro-pores or reducing the average pore size, which eventually affected the catalytic activity. In this study, the rates of benzene hydrogenation decreased drastically when the catalysts contained more than 15 wt% of nickel. At this nickel content, the average nickel size approached 100Å, which was the size of the most abundant pores in the catalysts.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
