• 제목/요약/키워드: Evaluations

검색결과 4,311건 처리시간 0.035초

대안 평가를 위한 의사결정 기법 (Decision Methods for Evaluation of Alternatives)

  • 남기창;홍상표
    • 환경영향평가
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    • 제9권4호
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    • pp.363-372
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    • 2000
  • For any particular development project or environmental regulations, decision-making criteria is required and conflicts among criteria should be resolved. It is necessary to investigate criteria that government agencies employ in making decisions that influence the environment. The evaluation of alternative development proposals and regulatory measures involves much more than environmental issues. Economic, technical, and social factors should be considered along with environmental impacts when making evaluations. Evaluation should be based on values of all individuals who may be affected by public or private decisions. There are many evaluation methods for determining how individuals and groups value alternative public actions. Numerous weighting-scaling methodologies can be used in such evaluations. These methodologies represent adaptations of multiple-criteria or multiple-attribute decision-making techniques. Environmental risk assessment which accounts for uncertainties in choosing among alternative policies and projects is increasingly used.

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매생이 분말을 이용하여 제조한 만두피의 품질특성 (Quality Characteristics of Dumpling Shell made with Capsosiphon fulvescens Powder)

  • 박인덕
    • 한국식생활문화학회지
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    • 제31권3호
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    • pp.243-249
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    • 2016
  • The purpose of this study was to investigate the effects of Capsosiphon fulvescens powder on the functional and sensory characteristics of dumpling shell. Various dumpling shell samples were prepared with wheat flour along with the addition of different amounts of Capsosiphon fulvescens powder, and then instrumental characteristics and sensory evaluations were investigated. According to amylograph data, the composite Capsosiphon fulvescens powder-wheat flour samples had increased gelatinization temperatures with increasing Capsosiphon fulvescens powder content; whereas initial viscosity at $95^{\circ}C$, viscosity at $95^{\circ}C$ after 15minutes, and maximum viscosity were reduced. In terms of Hunter's color values, L, a and b values decreased with increasing Capsosiphon fulvescens powder content. Besides cooked weight, cooked volume and turbidity of dumpling shell increased as the addition level of Capsosiphon fulvescens powder increase. In terms of textural characteristics, addition of Capsosiphon fulvescens powder increased springiness, chewiness, brittleness, pringiness and adhesiveness. Based on sensory evaluations, the overall preference of dumpling shell with 3% added Capsosiphon fulvescens powder, was more effective than control.

겨울철 소매점 및 냉장 닭고기의 미생물학적 평가 (Microbiological Evaluations of Retail and Refrigerated Chickens in Winter)

  • 고대희
    • 한국식품영양학회지
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    • 제12권2호
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    • pp.109-112
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    • 1999
  • Aerobic plate counts(APC) gram-negative bacterial counts (GNC) and sensory evaluations on chic-ken carcasses during retail and refrigerated storages (3$\pm$1$^{\circ}C$ and 1$0^{\circ}C$) were evaluated. APC and GNC on whole chicken in retail store after storage of 7 days at 3$\pm$1$^{\circ}C$ increased to 3.11 and 3.89 log units com-pared to the initial controls. APC and GNC on whole chicken after storage of 7 days at 1$0^{\circ}C$ increased to 5.43 and 5.03 log units. Sensory scores of chicken carcasses obtained from retail store were in the "liked less" category after storage of 7 days compared to fresh controls. These results indicated that chicken carcasses during refrigerated (1$0^{\circ}C$) storages rapidly allowed the growth of aerobic spoilage bacteria dur-ing storage period which cluld not be microbiologically acceptable after of 7 days of 7 days.

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유한요소법과 프라이자흐 모델을 이용한 SynRM의 손실해석과 효율평가 (Loss Analysis and Efficiency Evaluations of Synchronous Reluctance Motor Using Coupled FEM & Preisach Modelling)

  • 조용현;이일교;이중호
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2009년도 제40회 하계학술대회
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    • pp.718_719
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    • 2009
  • This paper deals with the loss analysis and efficiency evaluations in a synchronous reluctance motor (SynRM) using a coupled transient finite element method (FEM) and Preisach modeling, which is presented to analyze the characteristics under the effect of saturation and hysteresis loss. The focus of this paper is the efficiency evaluation relative to hysteresis loss, copper loss, etc. on the basis of speed, load condition in a SynRM. Computer simulation and experimental result for the efficiency using dynamometer show the propriety of the proposed method.

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평가를 통한 수학 학습지도에 관한 연구 (A Study on Mathematics Teaching through Evaluations)

  • 서종진;윤연수
    • 한국학교수학회논문집
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    • 제13권2호
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    • pp.185-203
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    • 2010
  • 학생들의 수학 학습 정도는 학교수학의 각 영역이나 내용에 따라 다양하게 나타날 수 있다. 이러한 수학 학습상황을 평가하고 활용하기 위한 통합적인 평가 틀의 구성은 유용하다. 본 논문에서는 일차방정식의 내용으로 한정하여 유형별 평가와 문항별 평가에 대한 평가표를 구성하였으며, 두 가지 평가를 기초로 종합평가를 통한 수학 학습 지도에 대하여 알아보았다. 구성한 평가표는 학생 개개인의 학습 상황에 대한 정보를 제공함으로 개별적인 수학 학습 지도에 유용하다.

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EVALUATION OF VEHICLE DYNAMIC CONTROL FOR ROLOVER PREVENTION

  • Ungoren, A.Y.;Peng, H.
    • International Journal of Automotive Technology
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    • 제5권2호
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    • pp.115-122
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    • 2004
  • Evaluation of active safety control systems usually relies heavily on field testing and is time-consuming and costly. Advances in computer simulations make it possible to perform exhaustive design trials and evaluations before field testing, and promise to dramatically reduce development cost and cycle time. In this paper, a comprehensive simulation-based evaluation procedure is proposed, which combines standard evaluation maneuvers, worst-case techniques, and a driver model for closed-loop path following evaluations. A vehicle dynamic controller (VDC) for a popular Sport Utility Vehicle is evaluated using the proposed procedure. Simulation results show that the proposed procedure can be used to assess the performance of the VDC under various conditions and provides valuable information for the re-design of the VDC.

직장교육에 대한 인식 및 만족도에 관한 연구 -전문적 여성 종사자를 중심으로- (Working Females' Perceptions and Evaluations on Employer-Supported Child Care Service: Centered on Professional Working Females)

  • 황혜신
    • 한국생활과학회지
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    • 제16권1호
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    • pp.49-59
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    • 2007
  • The purpose of the present study was to examine how working females evaluated and perceived the employer-supported child care services, and how the evaluations and perceptions were different depending on their socio-demographic characteristics. A survey was administered to 164 working females, mostly, in professional jobs, to investigate their satisfaction to the employer-supported child care service and current child care policy. Major findings are as follows: Working females showed higher degrees of satisfaction on the employer-supported child care service and showed lower degrees of satisfaction on the current child care polidy. The more they work in professional jobs and the more they have high educational background, the more they showed satisfactions to the employer-supported child care services.

계측시스템에 의한 저수지 제체의 안정성 평가 (Safety Evaluations of Reservoir Embankment by Instrument System)

  • 김미현;이달원
    • 한국농공학회논문집
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    • 제51권6호
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    • pp.33-43
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    • 2009
  • This study analyzed data on the pore water pressure, the ground water level, the horizontal displacement and the resistivity monitoring from instrument system, which is established to evaluate the safety in reservoirs. The pore water pressure in the embankment ranged from $0.035{\sim}1.116kg/cm^2$. The seepage that piping showed, as well as the leakage from the reservoirs are acceptable for the safety management of the reservoir. The maximum horizontal displacement and direction analyzed from the measured inclinometer data gives us very effective information to evaluate the safety in reservoirs. The resistivity monitoring technique, which is obtained on the reservoir crest, is an efficient tool to detect leakage zone. The safety index (SI) was predicted by the resistivity monitoring, and was evaluated to have a safety level of 0.8-1.0 at all reservoirs. Safety evaluations of reservoir through instrument systems are effective when studying the embankment, when the results of the instrument system have been analyzed compositively.

고온초전도 케이블 시스템 개발에 관한 타당성 조사 (Feasibility Study on the Development of $High-T_c$ Superconducting Power Cable System)

  • 황시돌;현옥배;최효상;김혜림;김상준
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2000년도 하계학술대회 논문집 A
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    • pp.172-174
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    • 2000
  • This paper summarizes the feasibility study of HTS power cables in Korea, including the conceptual design of a 154 kV 1000 MVA class HTS cable system, and the relative economic evaluations between conventional and HTS cable systems in Seoul area. According to the results of the economic evaluations, the HTS cable system can reduce the construction work for 168km of underground transmission lines, saving 700 million USD of construction cost in 2010.

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WEB-BASED SIMULATION MODEL FOR MULTI-ATTRIBUTE STRUCTURED DECISION SUPPORT SYSTEM

  • Hwang, Heung-Suk;Cho, Gyu-Sung
    • 한국시뮬레이션학회:학술대회논문집
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    • 한국시뮬레이션학회 2001년도 The Seoul International Simulation Conference
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    • pp.44-49
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    • 2001
  • This paper is concerned with development of a multi-attribute structured decision model. In this study, we used AHP(analytic hierarchy process) and fuzzy set ranking methodology to overcome the multi-attributes structured decision problems ; such as multi-objective, multi-criterion, and multi-attributes. We proposed a 2-step approach : 1) individual evaluation and 2) integration of individual evaluations. In the first step, we define the performance factors and construct ana]isis structure, and in the second step performance evaluation by individual evaluators, and in second step, the results of individual evaluations are integrate. Also we developed a systematic and practical computer program to solve the problems according to the proposed methods. The proposed approach was known to be effective through a set of sample problems.

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