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Kyu-shik Jeong,정원일,Jae-yong Chung,Mi-young An,Chae-yong Jung,Gyoung-jae Lee,Jong-soo Kang,Byeong-cheol Kang,Young-heun Jee,Bruce H Williams,Young-oh Kwon,Da-hee Jeong 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2
Cirrhosis Occurring in a Young Woodchuck (Marmota monax) Due to Vertical Transmission of Woodchuck Hepatitis Virus (WHV)Da-hee Jeong, Won-il Jeong, Jae-yong Chung, Mi-young An, Chae-yong Jung, Gyoung-jae Lee1, Jong-soo Kang1, Byeong-cheol Kang2, Young-heun Jee3, Bruce H Williams4, Young-oh Kwon5 and Kyu-shik Jeong*College of Veterinary Medicine, Kyungpook National University, Daegu 702-701, Korea1Shinwon Scientific Co., LTD, Research Institute, Suwon, Korea2Clinical Research Institute, Seoul National University, Seoul 110-744, Korea3College of Veterinary Medicine, Jeju National University, Jeju 690-756, Korea
Regulating Prperty and Liability Insurance Rates Through Excess Profits Statutes
Williams Jr., C . A . 한국보험학회 1990 保險學會誌 Vol.35 No.-
Excess profits statutes in six states require automobile insurers to return excess profits, if any to their policyholders. This article discusses the issues that must be resolved in drafting and implementing an excess profits statute. For example, what is the long-run reasonable of return? What allowance should be made for short-run fluctuations around the reasonable rate af return? The article also examines carefully the only two statutes (Florida and New York) that have been implemented to date. Finally, it presents the cases for and against excess profits statutes as a supplement to existing forms of property and liability insurance rate regulation.
( Williams Agyei Appiah ),박주남,변승우,유명현,이용민 한국공업화학회 2018 한국공업화학회 연구논문 초록집 Vol.2018 No.0
To meet the various application requirements of LIBs, the energy and power density of LIBs needs to be optimized for a given electrode material by controlling its porosity and thickness. Changes in electrode thickness and porosity affect the electrochemical performance of LIBs. Hence we employ a mathematical model to study and optimize the electrochemical performance of graphite/LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> cells with different cathode thicknesses and porosities. A non-linear least square method is used to provide a better understanding of the different porosities and thicknesses on Li-ion transport in both liquid and solid phases. Ragone plots are generated for the various cell designs where the specific energy and average specific power are evaluated. The cells are optimized for discharge times ranging from 10 h to 2 min in order to map the maximum performance of this chemistry under wide operating range.
Synergetic effects of blended cathode active materials: Simulation and Experiment
( Williams Agyei Appiah ),박주남,변승우,유명현,이용민 한국공업화학회 2017 한국공업화학회 연구논문 초록집 Vol.2017 No.1
In the quest to achieve a higher capacity electrode materials for lithium ion batteries, different active materials for both cathode and anode are being studied. However, the available electrode materials which have been discovered have both good and bad sides. Hence, the electrochemical characteristics of Li-ion cells made of blended cathode material composed of LiMn2O4 and LiNi0.6Co0.2Mn0.2O2 and an artificial graphite anode are being studied via both experiments and simulation. The cycle performance of the two pure cell chemistries we modelled by considering Mn2+ dissolution in the cathode and solid electrolyte interphase information in the anode. By fitting our model predictions to the experimental data, the percentage of each contributing factor to the total capacity fade was determined. Ragone plots were used to study the correlation between the energy density and average specific power of the two pure chemistries and their blends.
Developing ICT Competence in Pre-service Teacher Training : A Singapore case
WILLIAMS, MICHAEL D. 이화여자대학교 국제통상협력연구소 2001 Jounal of APEC Studies Vol.3 No.1
Recent changes to the Singapore education system have moved particularly rapidly in the area of the use of computer technologies in schools, and have produced marked demands on teachers to upgrade their technology skills and practices to meet this new educational environment. This paper describes the process which the Singapore education profession, especially pre-service teacher preparation, has undergone in the past several years in an effort to prepare teachers to integrate information and communications technologies (ICT) into their teaching and learning. A variety of factors producing these changes is presented, followed by an updated set of ICT competencies for teachers, as well as the response by the Singapore National Institute of Education to meet these new professional requirements.