• 한국해양학회지
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• 제22권3호
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• pp.153-167
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• 1987

현생 저서공충의 연수방법, 특히 연구재료의 채집에서부터 유공충개체수의 계수과정까지를, 소홀히 하기 쉬운 처리과정에 유의하면서, 상세히 설명하였다. 아울 러서 표준으로 쓸 만한 방법을 제시하였다. 훈련된 솜씨에 의한 일관적인 방법의 적용은 연구결과에 비교해 대단히 중요하다. 기초적인 연구재료 분석항목 즉 유공 충의 절대 개체수와 보존상태, 다양성, 피각의 조성에 따르는 구성비율, 우점도, 향 사도 및 저서유공충 군집에서 부유유공충의 산출을 적절한 예를 들어 가면서 설명 하였다.

• 한국소음진동공학회논문집
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• 제22권2호
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• pp.187-192
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• 2012

Recently, KARI(Korea Aerospace Research Institute) has been developing a modern 11.5 m diameter four bladed bearingless main rotor system, and this rotor system can be used for 7,000 lb class helicopter. Flexbeam and torque tube can be considered as key structural components, and large elastic twist of flexbeam induced by pitch control motion of torque tube can influence the nonlinear aeroelastic behavior. In this paper, the dynamic characteristic analysis results of bearingless rotor system were presented. In order to construct a input model and validate the analysis procedures, calculated results using the comprehensive helicopter analysis program CAMRAD II were compared with the measured natural frequencies and lag damping data from small-scale wind tunnel test. Next, the analysis model was extended to a full-scale model, and the dynamic analysis results were presented.

• 한국의류학회지
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• 제17권4호
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• pp.565-576
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• 1993

The Purpose of this study was to develop pattern drafting methods of the hip block and sleeve for female college students of 18 to 26 year-old. The study procedures and results were as follows ; 1. 313 female college students were measured, 17items were analyzed statisitcally. 2. New hip block and sleeve sloper were developed based on the result of the data analysis and fitting tests. 3. The sensory test was applied to evaluate the new hip block and sleeve sloper for female college student by comparing it with Japanese Bunka method sloper. According to statistical analysis of the result of 40items on the questionnaire, all the items showed significant difference($$a{\leq_-}0.01$$) between the two, with the new pattern having higher scores. The new drafting method proved to be better fitted at all 40items, and to be comfortable.

• 패션비즈니스
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• 제15권3호
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• pp.84-96
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• 2011

With the advancements in the computer graphics sectors, the visual quality of the virtual clothing implemented by using the 3-dimensional digital clothing software system has been much improved during the past decade. Most of the cloth simulation procedures are complicated due to the multitude of parameters involved in the simulation in order to achieve the appearance of the actual textile fabrics or the movement of the actual clothing as close as possible. Bending properties affect the tactile and visual qualities of the textile fabrics along with the shear and tensile properties. In this study, dynamic bending properties, focused on the movement of the textile fabrics including damping ratio and amplitude, were measured by using a dynamic bending test system.

• International Journal of Reliability and Applications
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• 제5권1호
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• pp.25-36
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• 2004

Ultrasonic inspection system consist of the examination procedures, equipment, and operators. The reliability of nondestructive testing is influenced by the inspection environment, materials and types of defect. It is very difficult to estimate the reliability of NDT due to the various factors. Piping inspection round robin was conducted to quantify the capability of ultrasonic inspection during in-service. In this study, the models for predicting the ultrasonic NDE reliability by logistic model and linear regression model are discussed. The utility of the NDT reliability assessment is verified by the analysis of the data from round robin test with these models.

• 한국표면공학회:학술대회논문집
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• 한국표면공학회 2014년도 추계학술대회 논문집
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• pp.176-177
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• 2014

The new algorithm was proposed to quantify symmetry recorded in convergent beam electron diffraction (CBED) patterns and symmetry mapping. The proposed algorithm is based on the normalized cross-correlation coefficient (${\gamma}$) for quantifying the amount of symmetry in a CBED pattern. The quantification and mapping procedures are automatically controlled by the script implemented in Gatan Digital Micrograph$^{(c)}$. We apply the quantitative CBED measurement to a strained Si sample to test the sensitivity to defects.

• 기술발표회
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• 통권2006호
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• pp.75-85
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• 2006

The project comprised the construction of the new oil pier and associated topside facilities and demolition of exiting south pier. The site is located approximately 33km south of Kuwait city at MAA refinery. The approach trestle and berth structures of the new oil pier were designed to be supported by steel tubular piles Total 2,480 numbers of piles(795 piles at Approach Trestle, 1187 piles at Berth 1 -4 and 498 piles at Berth 5-6) had to be driven through the calcareous silty sand In this study, the design procedures for offshore steel pipe piles, evaluation for the compression and tension capacities by static and dynamic load test and effective driving criteria by the final set values are discussed

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 하계학술대회 논문집 A
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• pp.440-442
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• 2001

Calibration procedure of high-current measuring system has been promoted to ensure the traceability of national of international standard with the similar method of high-voltage measuring system. This paper introduces general procedure to establish the traceability and type & performance tests for current-voltage transformer, transmission system, recorder and evaluation procedure as the result of intercomparison tests performed 7 laboratories of Europe, and introduces briefly the test method of itemized list from type & performance tests. So we would apply the standard as the criteria that can be enforced temporarily in korea.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1999년도 하계학술대회 논문집 E
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• pp.2374-2376
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• 1999

This paper deals with some experimental results of the ACSR inner corrosion detector which is developed in order to measure local corrosion of transmission line. Tested wire is ACSR $97{mm}^2$. Experimental procedures, desirable test results and normalizing method of corrosion grade are reported. It is shown that the detector is possible to inspect the inner corrosion of ACSR, through testing and experimental studying for artificial corroded samples.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1999년도 하계학술대회 논문집 E
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• pp.2123-2125
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• 1999

In recent the XLPE cable has been applied more widely because of its advantages, such as the low-cost and simple installation. For a prefabricated joint, its working time is short, its jointing procedures aγe simple, and its quality control is easy. Electrical performance targets of our developed 66kV cable accessories has been approved through the type test in accordance with IEC publication 840. This paper describes the developmental effort in terms of the design, structure and results of performance verification tests for 66kV XLPE cable system.