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임정호,김기배,윤우영,윤의박 ( Jeong Ho Lim,Ki Bae Kim,Woo Yung Yoon,Eui Pak Yoon ) 한국주조공학회 1998 한국주조공학회지 Vol.18 No.5
N/A Formation of oxide inclusions in the molten aluminium alloys during solidification is investigated. The oxidation tendency of both Al-4.5wt%Cu and Al-7wt%Si alloys is increased with melt temperature, particularly over 700˚C. However, an Al-5wt%Mg alloy exhibits a decreasing mode over 800˚C. The oxidation behavior with holding time shows the S curve shape for all of the alloys. It is shown that the mechanism of oxidation of Al-5wt%Mg alloy has a two step process different from that of Al-4.5wt%Cu and Al-7wt%Si alloys. The species and morphology of oxide inclusions in each alloy is also shown. The microstructure was more coarsened during solidification when the melt contains a large amount of oxide inclusion than when it doesn`t. This result can be explained in terms of both the hindrance of heat extraction by oxide film formed on the aluminium melt and the difference of heat capacity between the aluminium melt and oxide inclusion during solidification. (Received March 2, 1998)
임정호(Lim, Jeong-Ho) 한국부동산정책학회 2012 不動産政策硏究 Vol.13 No.2
It has been twenty years since Korea and China established full scale of diplomatic relationship. China became a number one trading parter of Korea and the amount of trading volume isgoing to be bigger than ever. Both countries made cross-investment each other and in many way other than trading. Ever since China s income level grew rapidly from its rapid economic growth, Korea expect Chinese invest in Korean real estate market directly more in near future. There is a fundamental difference of real estate tax system between two countries. Under socialistic economic system, Chines government is sole entity to own land and provide only user right . Government regulates owning land and buildings and there are limits to own and use real estate for foreigners. After the Foreign Currency Crisis of 1997 Korean government discarded mostly discrimination to own and use domestic real estate for foreigners. As Chinese income level grows fast, China invest more and more to Korean real estate market and Korea still need properties in Chinaas manufacturing facilities. In this research, Real Estate Tax system broken into two parts: property taxes and transfer taxes. and compare and analysis the tax code of each division and try to find the reason of the difference and its implication. As a conclusion, Korean real estate tax system has a strong political inclination so modifications were frequent on mainly by governing parties political character and macro economic situation. China needs a real estate infra structure like appraisal system, specific distinction betweenreal estate tax and public due or expenses. In near future, a new property tax should be adopted.
고전압 펄스 전기장 처리가 사과의 착즙 특성에 미치는 영향
임정호 ( Jeong Ho Lim ),안성환 ( Seong Hwan Ahn ),이동언 ( Dong Un Lee ),김영호 ( Young Ho Kim ),박기재 ( Kee Jai Park ) 한국식품저장유통학회(구 한국농산물저장유통학회) 2012 한국식품저장유통학회지 Vol.19 No.5
The effects of pretreatment by pulsed electric fields (PEFs) on the juice expression characteristics of the Malus pumila fruit were investigated. Fresh fruits were divided into quarters, were produced on a laboratory scale (100 g apples per lot) by pretreatment with electric fields at two different field intensities (1, 2 kV/cm; n=50, 100, 200, and 400 pulses), and were then pressed at room temperature. Relative to the control samples, the juice yield increased with increasing field intensities. The total phenolics and antioxidant activity were higher in the juice from the PEF-treated fruit than in the juice from the untreated fruit. There was no significant difference in soluble-solid and reducing sugar contents between the PEF-treated and untreated fruits. These results suggest that PEF pretreatment may be useful for increasing the juice yield, total phenolics, and antioxidant activity of the Malus pumila fruit.
PMP 모델을 활용한 시판 Salad의 Short-term Temperature Abuse 시 미생물학적 유통기한 예측에의 적용성 검토
임정호 ( Jeong Ho Lim ),박기재 ( Kee Jea Park ),정진웅 ( Jin Woong Jeong ),김현수 ( Hyun Soo Kim ),황태영 ( Tae Young Hwang ) 한국식품저장유통학회(구 한국농산물저장유통학회) 2012 한국식품저장유통학회지 Vol.19 No.5
The aim of this study was to investigate the growth of aerobic bacteria in fresh-cut salad during short-term temperature abuse (4∼30℃temperature for 1, 2, and 3 h) for 72 h and to develop predictive models for the growth of total viable cells (TVC) based on Predictive food microbiology (PFM). The tool that was used, Pathogen Modeling program (PMP 7.0), predicts the growth of Aeromonas hydrophila (broth Culture, aerobic) at pH 5.6, NaCl 2.5%, and sodium nitrite 150 ppm for 72 h. Linear models through linear regression analysis; DMFit program were created based on the results obtained at 5, 10, 20, and 30℃ for 72 h (r2 >0.9). Secondary models for the growth rate and lag time, as a function of storage temperature, were developed using the polynomial model. The initial contamination level of fresh-cut salad was 5.6 log CFU/mL of TVC during 72 h storage, and the growth rate of TVC was shown to be 0.020∼1.083 CFU/mL/h (r2 >0.9). Also, the growth tendency of TVC was similar to that of PMP (grow rate: 0.017∼0.235 CFU/mL/h; r2=0.994∼1.000). The predicted shelf life with PMP was 24.1∼626.5 h, and the estimated shelf life of the fresh-cut salads with short-term temperature abuse was 15.6∼31.1 h. The predicted shelf life was more than two times the observed one. This result indicates a ``fail safe`` model. It can be taken to a ludicrous extreme by adopting a model that always predicts that a pathogenic microorganism will grow even under conditions so strict as to be actually impossible.
임정호(Kevin Jeong Ho Lim) 한국주택학회 2010 주택연구 Vol.18 No.4
한국의 임대차보호법은 주거용과 상가용 공히 임차인을 사회.경제적 약자로 보고 보호하려는 제도이며 그 방법은 전세보증금의 적절한 반환을 내용으로 하고 있다. 우리나라의 임대시장은 국제화의 물결 속에서 외국인 임차인의 주거용이나 상업용부동산 임대차계약이 빈도와 금액 면에서 더욱 증가할 것으로 예측된다. 전세보증금이 50%를 넘는 임대시장에서 임차인의 점유행태는 강요된 선택이 아니고 경제적인 타산성을 고려한 합리적인 선택일수 있다. 이런 경우 임차인은 더 이상 사회.경제적인 약자가 아니다. 국제적 다국적기업의 한국지사로의 오피스임대차 계약 시 그런 임차인은 임대인보다 훨씬 경제적으로 세련되고 힘이 세다. 따라서 임차인이 임대인보다 약자이기 때문에 보호해야만 사회적 형평성이 이룩 될 수 있다는 생각은 더 이 상 의 설득력이 없다고 보며 임대차의 선택은 약자와 강자의 선택이 아니고 합리적 이고 자유스런 경제적인 공간에 대한 선택이다. 임차인 보호라는 불평등계약요소가 주 내용인 한국의 주택과 상가건물임대차보호법을 미국의 임대차법과 비교하여 주거용임 대 차의 경우 보증금의 반환보다는 주거 복지와 안전, 임대.임차인이 계약자유에 입각한 보다 명확한 책임과 의무의 구분, 이익동기로서 자유스런 상업용 공간사용에 따른 서로의 계약 이행이 보다 더 중요한 내용이 되어야한다. This paper is a comparative study of two different countries of rental law and their transactional procedures and customs; Korea and United States. Korean rental market has endogenous character like Chon-Sei system. It requires substantial sum of money front as a security deposit and tenants pays no rent during the rental period. The large amount of security deposit caused many socio-economic problems, and Korean rental law has developed to protect and guarantee the safe return of the deposit to the tenants after rental term is expired. Korean rental market has been required to adopt the international procedures and standards and its degree should be intensified according to the Free Trade Agreement between Korea and many other country including United States. Hopefully this paper contributes to recognizes the differences of legality and transactional practices between Korean and United States, so Korean rental market adjust smoothly and adopt necessary procedures which are coming soon. This research started with analyzing the difference of Korean residential protection law and US. landlords and tenants law. As a comparison of the transaction procedures, standardized contract forms are analyzed. For a conclusion, a few suggestions was made and explains why the suggestion is necessary.