• Title/Summary/Keyword: qualify

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High Intensity Acoustic Test for KOMPSAT-2 STM (다목적 실용위성 2호 구조-열모델의 음향 환경 시험)

  • 김홍배;문상무;김영기;우성현;이상설;김성훈
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2002.05a
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    • pp.862-866
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    • 2002
  • High intensity vibro-acoustic testing is the appropriate method for flight qualification testing of space flight vehicle which must ensure the acoustic environment of launch. To qualify vibro-acoustic environment during its flight, High Intensity Acoustic Test was performed for KOMPSAT-2(Korea Multi-Purpose SATellite) STM(Structural Thermal Model). This paper presents the detailed description on the high intensity acoustic test for KOMPSAT-2. Additionally the test results was compared with the analysis ones, which were estimated with 3-D SEA(Statistical Energy Analysis) model.

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Carotenoid pigment of Pumpukin Culitivated in Korea (한국산 호박의 Carotenoid 색소)

  • 박용곤
    • The Korean Journal of Food And Nutrition
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    • v.12 no.5
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    • pp.508-512
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    • 1999
  • In order to qualify and quantify carotenoid pigment of pumpukin were analyzed by HPLC column chromatography and spectrophotometry. Eightyseven percent of total carotenoids in the pumpkin was in the fiber amounting 65.33mg%. however flesh and skin contained 6.61 and 3.31mg% respectvely. A silica gel column chromatography of the carotenoids produced 2 different peaks. The components eluted in peak II showed blue color when treated with hydrochloric acid. The fact suggested it contained epoxide and the component in peak II was a monol. By the separation with HPLC. $\alpha$ and $\beta$-carotene were the major compounds in the carotenoids. In fiber the total $\beta$-carotene content was 1.6 times higher than in the flesh and skin. The fiber contained less unidentified compounds than other part which contained 27.3~32.8%.

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Economic Design of Tool Resetting Period in NC Machining (NC 선반가공에서 공구 조정주기의 경제적 설계)

  • 배문택;윤원영;목학수
    • Journal of the Korean Society for Precision Engineering
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    • v.15 no.6
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    • pp.33-39
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    • 1998
  • This paper is related to economic design of tool-resetting period in NC machining. In NC lathe machining, the mean and variance of components dimension fluctuate in slow time and we should reset tool program to compensate the variation from the fluctuation. In this paper. we propose the procedure determining the optimal resetting period based on the total expected operating cost which consists of resetting cost and the quality cost related to dimension variation. As a case study, using experimental data about dimension changes of a lathe machining, we obtain the regression equations of mean and variance of the dimension fluctuation, total expected operating cost, and optimal resetting period.

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Inkjet Printing on the Grain Leather: Evaluation of Line Image Quality on the Grain Leather

  • Park, Heung-Sup;Park, Soo-Min
    • Textile Coloration and Finishing
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    • v.19 no.2
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    • pp.24-31
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    • 2007
  • This paper addresses factors of line image quality on grain leather printed via inkjet printer. Lines were printed onto coated leather media, and line width, edge blurriness, and edge raggedness were evaluated for line image quality. Various factors influenced to wetting and capillary wicking were studied and found out that wicking through capillary between fibers causes significant feathering on leather surface similar with pulp capillary in copy Paper. Polyurethane and acrylic resin coating resulted good image qualify by reducing capillary wicking. The mixture of polyurethane and acrylic resin applied on grain leather satisfied with both image quality and surface hand. $AllWrite^{TM}$ ink brought best results of image quality, comparing with $VeraPrint^{TM}$ ink and $JetWrite^{TM}$ ink.

A Study of a Korean Academic Journal Evaluation Model (국내 학술지 평가모형에 관한 연구)

  • Han, Sang Wan;Park, Hong Seok
    • Journal of the Korean Society for Library and Information Science
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    • v.33 no.2
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    • pp.90-90
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    • 1999
  • The academic journal is a very important means for science communication, and it is critical for academic development. Most of Korean academic journals are not doing their fundamental roles because of the researchers' perception about their quality. A fundamental thing for Korean academic Journals to contribute effectively to science communication would be the effective evaluation on the journal. The purpose of this study is to develop an evaluation model for Korean academic Journals. This model will be effective for quality measurement, manifestation of the strength and weakness, and for the improvement of journal qualify. It was developed through analysis on evaluation activities of two institutions, and through interviews and surveys on Korean researchers.

The Design and Implementation of Subscriber Information Management System (가입자시설 종합관리시스템(SIMS) 설계 및 구현)

  • Kim, Jang-Su
    • Journal of Korean Society for Geospatial Information Science
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    • v.1 no.2 s.2
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    • pp.131-141
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    • 1993
  • This paper describes the development of SIMS. SIMS provides not only the basic functions, such as input and output of outside plant maps and facility status statistics report, which are the major function of TOMS, but also can manage outside plant facilities and subscriber information integrately to maximize the efficiency of large outside plant facility database and to increase the qualify of subscriber service. SIMS provides following functions: Work order generation for telephone installation; Automatic cable pair assignment; Cable tracing and unused pair management; Subscriber record management and statistics report generation; Subscriber address information management.

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A Study on the Improvement of Estimation Method of an Appraisal Standard to Select of the Subject in VE. (VE 대상선정을 위한 평가기준 중요도 산정방법 개선에 관한 연구)

  • Kwon Byoung Suk;Lee Dong Jun;Chun Jae Youl
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.291-294
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    • 2001
  • This study has established an appraisal standard to select VE subject when they evaluate of design VE by using of a qualify model in an early design step and has suggested an improvement method for importance's estimation method of an appraisal standard. An importance's estimation method is to arrangement of geometric average method using an AHP method to this study, When an evaluation of a quality model, we estimate an importance by establishing of an appraisal standard of economics, construction, security, environmental influence, maintenance, etc.

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A study on the texture of cookie depending the quality of green tea (녹차의 품질에 따른 쿠키의 Texture에 관한 연구)

  • 신길만;노삼현
    • Culinary science and hospitality research
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    • v.5 no.2
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    • pp.133-146
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    • 1999
  • Green tea is popular as health food these days and has effects of anti-cancer and an-agering. A various Foreign countries produce green health cookie adding the first, the second and third classes green tea on a commercial. The cookie is produced by wheat flour adding 4% green tea. The changes of taste depending on the quality of green tea are examined through the five sense and the mechanical inspection. The results are as follow: First, as the quality of green tea is higher score is achieved. Second, as the quantity of green tea is increased, the goods are harder in the five sence inspection. Third, as the quality of green tea is higher, brightness is lower in the measurement of color. Therefore, this study indicates that it is desirable to use the good qualify of green tea in case of producing cookie on a commercial scale.

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Characteristic of a Superconducting Magnet for 3MJ SMES (3MJ SMES용 초전도 마그네트 특성연구)

  • 김해종;성기철;조전욱;배준한;김석환;심기덕;이언용;김해준;권영길
    • The Transactions of the Korean Institute of Electrical Engineers B
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    • v.52 no.11
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    • pp.572-576
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    • 2003
  • For quite a long time various researches and developments of superconducting magnetic energy storage(SMES) device have been done for enhancement of power qualify control of sensitive electric load. This paper describes the design. fabrication and experimental results for the 3MJ SMES magnet made by using the design code of a SMES device that we developed. A computer code was developed to find the parameters of the SMES magnet which has minimum amount of superconductor for the same stored energy, and the 3MJ SMES magnet was designed based upon that. And the 3MJ SMES magnet designed based upon those. In addition, 3MJ SMES magnet was made based on several research results which were ramp up to 1㎄ without quench.

Seismic Qualification Analysis for the Power Transformer with IEEE Std 693-1997 (IEEE Std 693-1997을 적용한 전력용 변압기 내진 해석)

  • Yang J.C.;Roh H.C.;Kim H.Y.;Park K.S.
    • The Transactions of the Korean Institute of Electrical Engineers C
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    • v.54 no.12
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    • pp.527-531
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    • 2005
  • Because of increasing demand for safety of the power transformer, the seismic qualification process in accordance with the standard of IEEE Std 693-1997 is essentially required by customer. Dynamic analysis method and static analysis method were used to qualify the seismic withstanding of the power transformer at high seismic level. Maximum stress was detected at the connection between the main structure and appendages, and maximum displacement was detected at the point of appendage's end tip. Load path and substructure system can be considered as important elements to prevent over stress and over displacement.