• Archives of Plastic Surgery
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• 제33권2호
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• pp.225-232
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• 2006

The aim of this study is to evaluate the clinical competence of medical student using short case test items. Development of short case test items with definition of an assessment of subject, choice of clinical stations sampling, identification of components of clinical competence to be evaluated, and assessment of practicability and results exploitation. For the last three years 28, 48 and 30 topics were developed annually. Among them 20, 23 and 23 topics were selected. About 50 students were examined annually. The mean score was 72.7, 57.1, 64.3 respectively. The mean preparation time of the students for the examination was 9.8 hours. About 60% of the students prepared the test in small group activity. Our experience suggests that short case test items be feasible for evaluation of student learning in Plastic Surgery. This method should be considered as a useful tool to assess medical student's competence or even an examination for board certification.

• 한국군사과학기술학회지
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• 제17권4호
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• pp.471-478
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• 2014

Navy forces of ROK asked for more than 90% operational availability in the requirement document of combat ship. This study proposes the evaluation methodology of operational availability with the evaluation process, calculation formula, analysis of operational test data. As the case study, the developed methodology is proved to apply for 00 batch-I naval ship using the data to be acquired during the operational test period. The operational availability by test data was 90.03%, and it was satisfied with objective value 90%. The paper will contribute not only to establish the evaluation methodology of operational availability for combat ship but also other general weapon system.

• 한국산업융합학회 논문집
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• 제9권2호
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• pp.141-145
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• 2006

In case of sense case manufactured by method of outage capacity, sensitivity is declined by outside effect and method of the photo electricity has a problem in transmission. therefore, packing case of composite sense should be developed to improve such a problem about influence of outside environment and its property evaluation has been performed. Mechanical property and result of analysis & test evaluation of Mat'l on aluminum die-casting(ADC 12type) Mat'l developed are as following. Tensile test piece, No. 4 of KS B 0801, has been applied to mechanical property test of Mat'l and It has been tested by method of metal mat'l tensile test(KS B 0802 : 2003). It can be found that physical property to KS(Korea Standard) is excellent. and homogeneous mechanical property appears. Test of Mat'l analysis has been performed by using OE Spectrometer, according to ASTM E 1251 : 1994 regulation. Consequently, good and homogeneous component contents classified by element to standard, except for Fe, have been obtained with coordination of Fe content as below 1.3% from composition standard of Aluminum Die-casting.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 1999년도 봄 학술발표회 논문집
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• pp.439-446
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• 1999

In situ experimental studies were Performed at Yongjong Island Geotechnical Experimental Site to evaluate the ground densification on sand deposited. Standard penetration test, cone penetration test, and SASW test were performed and soil profiles and quality of ground improvements were evaluated. The feasibility of applying SASW method were verified by comparing test results. The evaluation technique of in-situ density using SASW and resonant column tests was proposed, and the reliability of proposed method was verified by performing case studies.

• 한국신뢰성학회지:신뢰성응용연구
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• 제13권3호
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• pp.165-174
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• 2013

Thruster break for aerogenerator performs a role that is stopping the rotor in case of emergency such as strong wind, system abnormality or maintenance check. In this study, failure analysis and test evaluation on the thruster break for aerogenerator are proposed, and the entire process to improve reliability of the product through design improvement is presented. The typical failure case is fatigue and wear, and failure cause on these are identified and improvement plan is presented. Lastly, reliability improvement is established to analyse test results before after the life test.

• 정보보호학회논문지
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• 제28권1호
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• pp.179-186
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• 2018

사물인터넷 시대의 도래로 인터넷에 연결되는 매체가 급격히 증가하고 있다. 사물인터넷은 삶의 편리성을 향상 시켰지만, 사생활 침해와 같은 보안 이슈를 야기하였다. 따라서 사물인터넷 시대의 시작인 현시점에서 가장 중점적으로 논의되어야 하는 부분은 사이버 보안이다. 특히 사물인터넷 제품 시장이 급격히 형성되고, 다양한 프로토콜이 혼재되어 사용됨으로써 생기는 보안 위협에 대응하기 위해 프로토콜에 빠르게 적용 할 수 있는 취약성 분석 방법이 필요한 상황이다. 본고에서는 분산과 엔트로피를 이용하는 새로운 무작위성 기반의 테스트 케이스 평가 방법론을 제안하여 사물인터넷 보안에 기여하고자 한다. 본고에서 제안하는 테스트 케이스 평가 방법은 기존 기법과는 달리 테스트 셋 크기에 상관없이 빠른 속도로 테스트 케이스의 평가를 수행할 수 있다.

• 기술혁신연구
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• 제2권1호
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• pp.116-141
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• 1994

This paper presents a model for R&D project selection and evaluation system design developed through literature review. The model emphasizes the fitness between the five elements of the system : evaluation phase and purpose, personnel and organization, evaluation critiria and decision model, evaluation form and procedure, and projects. The model was applied in real situation as a test case. The important findings are that a good project selection and evaluation model contributes only partially to the effectiveness of the project selection and that system development and implementation activity is a dynamic and multi-facetted learning process.

• 한국통신학회논문지
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• 제21권8호
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• pp.1948-1957
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• 1996

통신 프로토콜의 적합성 시험은 구현된 프로토콜이 표준규격과 동일하게 구현되었는지를 검사하는 과정을 말한다. 생성된 시험 항목이 어느 정도의 오류를 발견해 낼 수 있는지를 평가함으로써 적합성 시험의 효율성을 평가하는 하나의 기준으로 사용될 수 있다. 시험 항목의 오류 발견 능력의 평가 방법은 주로 수학적 평가 방법과 시뮬레이션을 이용한 연구가 이루어져 왔다. 본 논문에서는 기존 평가 방법의 문제점을 지적하고 오류 모델을 사용하여 생성된 시험항목에 대한 새로운 오류 발견 평가 모델을 제시하였다. 그리고 제안된 평가 모델을 기존의 방법과 비교, 분석하여 타당성을 입증하였다.

• 공학교육연구
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• 제16권4호
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• pp.15-20
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• 2013

The result of the English test for freshmen showed wide difference in the ability of students, which means the graded class is strongly required. This paper describes the case study about the graded English class that was carried out for the freshman. Every freshman must take an English placement test from problems bank and were classified according to the result of the test. In order to resolve the dissatisfaction of the high level students, the statutes of my university for credit were modified. In order to analyze the effect of the graded class, evaluation test using similar problems was carried out at the end of the semester. The effect of the graded class was analyzed by using the paired samples t-test method and there was a meaningful performance improvement at the average score. Additional improvements in the method of classification and credit granted were made by analyzing the results of the evaluation test and survey.

• 한국국방경영분석학회지
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• 제31권1호
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• pp.93-106
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• 2005

The complexity of modern weapon systems using the IT(intelligence technology) demands that rapid and effective transition from force requirements to deployment and fielding. Thus this paper deals with the DT&E(developmental test & evaluation), OT&E(operational test & evaluation) and SBT(simulation based test) procedure using the case study in the test & evaluation of weapon systems. This study is aimed to produce the effective test & evaluation method of weapon systems in the change of acquisition environment.