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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
( Williams Agyei Appiah ),박주남,변승우,유명현,이용민 한국공업화학회 2018 한국공업화학회 연구논문 초록집 Vol.2018 No.0
To quantify the capacity fade mechanism in lithium ion batteries composed of a spinel-based cathode and an artificial graphite, a comprehensive mathematical model describing the cycling performance of LiMn2O4/graphite lithium ion cell is developed in this work. The developed model is incorporated into the Newman’s Porous Composite Electrode framework (PCE) and implemented in the battery module of COMSOL Multiphysics. The proposed model is used to investigate the effects of variations in the ambient temperature and of voltage range of cycling on the capacity fade. The effect of changes in the volume fraction of cathode active material, resistance in the cell and state of charge are also studied.
A COUPLED -STRUCTURE WITH AN APPLICATION IN A SUBTRACTION ALGEBRA
Williams, D.R. Prince,Ahn, Sun Shin,Jun, Young Bae The Honam Mathematical Society 2014 호남수학학술지 Vol.36 No.4
In this paper, we introduce a coupled $\mathcal{N}$-structure which is the generalization of $\mathcal{N}$-structure. Using this coupled $\mathcal{N}$-structure, we have applied in a subtraction algebra and have introduced the notion of a coupled $\mathcal{N}$-subalgebra, a coupled $\mathcal{N}$-ideal. Also the characterization of coupled $\mathcal{N}$-ideal is presented.
Williams, A.F.,Leitch, B.W.,Wang, N. Korean Nuclear Society 2013 Nuclear Engineering and Technology Vol.45 No.7
This paper describes a finite element model of the microstructure of dispersion type nuclear fuels, which can be used to determine the effective thermal conductivity of the fuels during irradiation. The model simulates a representative region of the fuel as a prism shaped unit cell made of brick elements. The elements within the unit cell are assigned material properties of either the fuel or the matrix depending on position, in such a way as to represent randomly distributed fuel particles with a size distribution similar to that of the as manufactured fuel. By applying an appropriate heat flux across the unit cell it is possible to determine the effective thermal conductivity of the unit cell as a function of the volume fraction of the fuel particles. The presence of a fuel/matrix interaction layer is simulated by the addition of a third set of material properties that are assigned to the finite elements that surround each fuel particle. In this way the effective thermal conductivity of the material may also be determined as a function of the volume fraction of the interaction layer. Work is on going to add fission gas bubbles in the fuel as a fourth phase to the model.
Application and testing of a triple bubbler sensor in molten salts
Williams A.N.,Shigrekar A.,Galbreth G.G.,Sanders J. 한국원자력학회 2020 Nuclear Engineering and Technology Vol.52 No.7
A triple bubbler sensor was tested in LiCleKCl molten salt from 450 to 525 C in a transparent furnace to validate thermal-expansion corrections and provide additional molten salt data sets for calibration and validation of the sensor. In addition to these tests, a model was identified and further developed to accurately determine the density, surface tension, and depth from the measured bubble pressures. A unique feature of the model is that calibration constants can be estimated using independent depth measurements, which allow calibration and validation of the sensor in an electrorefiner where the salt density and surface tension are largely unknown. This model and approach were tested using the current and previous triple bubbler data sets, and results indicate that accuracies are as high as 0.03%, 4.6%, and 0.15% for density, surface tension, and depth, respectively
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.
The Role of a Public Speaking Course in the Training of Interpreters
Williams, Neal 한국통번역교육학회 2009 통번역교육연구 Vol.7 No.2
전문 통역사에 대한 수요는 확고부동하다. 이러한 수요에 부응하려면 통역사 훈련을 위한 커리큘럼 개발은 시급한 과제이다. 통역사 교육 프로그램은 일반적으로 전문 통역사를 위한 퍼블릭 스피킹 능력을 기본 요소로 간주한다. 따라서 퍼블릭 스피킹이 대부분의 커리큘럼에 포함되지만 구체적인 이론적 배경은 미흡한 측면이 있다. 이러한 맥락에서 본고는 통역사 교육에서 퍼블릭 스피킹을 포함하여야 하는 두 가지 이론적 근거를 제시한다. 첫째, 통역사는 기본적으로 퍼블릭 스피커이다. 비록 타인인 연사의 메시지를 전달하지만 통역사는 들리도록 말하기, 명료한 발음, 적절한 발화 속도 등 퍼블릭 스피킹의 필수 요소를 반드시 익혀야 한다. 따라서 퍼블릭 스피킹 기술은 선택이 아닌 필수이다. 둘째, 퍼블릭 스피킹 기술은 통역사의 경력 개발에 필수적이다. 경력 개발에는 타인과의 네트워크 구성이 필수이며, 퍼블릭 스피킹 기술은 네트워크 구성의 통합 요소이다. 성공적인 통역사는 네트워크 구성에 능하며 퍼블릭 스피킹에도 능하다.