• Title/Summary/Keyword: Evaluation Procedures

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Experimental Evaluation of Buzz, Squeak and Rattle Noise of Vehicle Doors and Its Prevention (자동차 도어의 BSR 소음의 실험적 평가와 개선)

  • Shin, Su-Hyun;Jung, Sung-Soo;Cheong, Cheol-Ung
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.17 no.12
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    • pp.1217-1222
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    • 2007
  • With recent advance in automotive noise control engineering reducing major sound sources in the vehicle, customers perceive Buzz, Squeak and Rattle (BSR) as one of important indicators of vehicle quality and durability. As the long-term goal, we expect to establish the integrated design cycle for the reduction of the BSR noise in the early stage of vehicle development. which consist of design, prediction and evaluation procedures. This is possible only with great bulk of experimental data for BSR noise. In this paper, BSR noise is experimentally identified for vehicle doors, which have been traditionally considered as one of main sources of BSR noise. Based on this result, we proposed systematic method for the prevention of BSR noise in the vehicle doors.

Study on the Reinforced Method of Doubler Plate in Ship Hull Structure (선박 이중판의 보강법 연구)

  • 함주혁
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2001.05a
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    • pp.144-149
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    • 2001
  • A study for the structural strength analysis on the doubler plate subjected to the axial, biaxial in-plane compression and shear load has been performed through the systematic evaluation process. In order to estimate the proper static strength of doubler plate, non-linear elasto-plastic analysis is introduced. Gap element modeling for contact effect between main plate and doubler is prepared and nonlinear analysis procedures are illustrated based on MSC/N4W . In addition, some design guides are suggested through the consideration of several important effects such as corrosion of main plate, doubler width, doubler length and doubler thickness. Finally theses results are compared with developed design formula based on the buckling strength and general trends and design guides according to the variation of design parameters are discussed.

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A Study on the Store Compliance Verification for KT-1P Aircraft

  • Kim, Dae-wook;Kim, Chan-jo;Wu, Bong-gil
    • International Journal of Aerospace System Engineering
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    • v.2 no.2
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    • pp.87-91
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    • 2015
  • KT-1P for the Peru Air Force will be used as a utility aircraft with upgraded avionics equipment and arming capability based on KT-1 and KA-1. KT-1P should be shown for compatibility of new store loading configurations loaded with dispenser, bomb, and rocket based on aircraft-store compatibility test and evaluation procedures before KT-1P is operated as a light attack aircraft. The weapon system ground test for installation and flight test for envelope expansion including store separation are described in this paper, which was performed referring 'seek eagle program' under MIL-HDBK-1763 and MIL-HDBK-244A.

Ergonomic Evaluation of Some University Laboratories

  • Lee, Yun Keun;Lee, Ik Mo;Park, Jeongim;Yoon, Chung Sik;Rhie, Kwang Won;Park, Hee Sok
    • Journal of the Ergonomics Society of Korea
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    • v.32 no.4
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    • pp.397-403
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    • 2013
  • Objective: This article aims to report the results of ergonomic evaluation of some university laboratories. Background: Laboratory researchers are at risk for musculoskeletal injuries during routine laboratory procedures. However, little attention has paid to the working conditions of laboratory researchers, especially in Korea. Method: A checklist and questionnaire was developed and used to analyze the work conditions of 27 laboratories of chemistry, biology and pharmacy. Results: It was found that glove box, clean bench, and computer workstation are better than microscopy, and fume hood tasks, from ergonomic point of view. Conclusion: No domestic guideline is available for ergonomic intervention of laboratories. Further attention and studies are anticipated to improve the working conditions of laboratories.

Safety Evaluation of Wheel-Rail System Based on Fracture Scenarios and Fracture Mechanics (파손시나리오에 의한 차륜-레일의 파괴역학적 안전성 평가)

  • Lee, Dong-Hyung;Seo, Jung-Won;Goo, Byeung-Chun;Kwon, Seok-Jin
    • Proceedings of the KSR Conference
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    • 2006.11b
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    • pp.80-84
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    • 2006
  • Fracture mechanics approach can be severly hampered unless considerable detailed specific knowledge is available. The problem of railway wheel-rail system fatigue design is currently undertaken by using assumed conservative design procedures. However, although the failure rate is low, the consequences of any such failure can be far reaching. It has been demonstrated that the tools available for effective management have limits. In the present study, the safety evaluation based on fracture mechanics is carried out. The critical crack size and remaining lifetime are calculated on the wheel for high-speed train.

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The Economic Evaluation based Design Program for the Off-Grid Microgrid (경제성평가 기반의 독립형 마이크로그리드 설계 프로그램 개발)

  • Lee, Hak-Ju;Chae, Woo-Kyu;Jung, Won-Wook;Kim, Ju-Yong
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.24 no.10
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    • pp.90-98
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    • 2010
  • Microgrid is a small-scale power system composed of distributed generators, energy storage system and loads, and can operate in the grid-connected mode and the islanded mode. This paper presents optimal design procedures for remote microgrid. The design program is based on the economic evaluations including the feasibility study module, optimal combination and allocation of DERs, power network design and the reduction of the GHG emmission. This program which is suggested in this paper shows good performance as a tool of remote microgrid design.

Pharmacognostical Evaluation of the Bark of Careya arborea (Roxb.)

  • Bharathi, R Vijaya;Rajendran, K.;Saeed, Mustafa Mohamed Ali;Kaur, Rubina;Lakshmi, SN Soundarya;Vasanthi, RK
    • Natural Product Sciences
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    • v.14 no.4
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    • pp.221-226
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    • 2008
  • The bark of Careya arborea Roxb. (Barringtoniacae) is used against various disorders in Indian systems of medicine, namely astringent, anthelmintic, in tumors, dyspepsia, colic, bronchitis, urinary discharges, piles, lecucoderma, skin diseases, epileptic fits, diarrhoea. The juice of the fresh bark with honey is given as a demulcent in coughs and colds, infusion of the fresh bark is used to treat snake bite by applying to the bitten part and also taken internally. The present communication deals with the detailed pharmacognostical evaluation of the bark sample using light and confocal microscopy, WHO recommended physico-chemical determinations and authentic phytochemical procedures. The physico-chemical, morphological and histological parameters presented in this paper may be proposed as parameters to establish the authenticity of C. arborea bark and may possibly help to differentiate the drug from its other allied species.

Standardization of the Recipe for the Large-scale Production of Salbob and Ogokbob (쌀밥, 오곡밥의 대량생산 표준레시피 개발)

  • Han, Kyung-Soo;Pyo, Seung-Hui
    • Korean journal of food and cookery science
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    • v.24 no.5
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    • pp.682-690
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    • 2008
  • The principal objective of this study was to develop a standardized recipe for the large-scale production of Salbob and Ogokbob. The recipe was standardized as follows: we collected and recorded the amount of ingredients and production procedures currently being used by cooks in the contracted foodservice management company and hotel-based Korean restaurants. According to the food preferences of Koreans, we selected 2 kinds of rice; Salbob and Ogokbob. We developed a revised recipe and an evaluation form. We conducted a sensory evaluation with 30 panels, using a JAR (just-about-right) scale. We developed a standardized recipe for both kinds of rice. Yield, portion size, temperature, preparation time, equipment, cost, ingredients, weight of ingredients, method, and critical point were all components accounted for in the developed recipe. The factor method and the percentage method were proposed techniques for adjusting the recipe, and a direct measurement table for Salbob and Ogokbob was also devised.

An Integrated View of Web Site Evaluation Method (통합적인 관점에서의 웹사이트 평가 방법)

  • 곽기영
    • Journal of Korea Society of Industrial Information Systems
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    • v.7 no.4
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    • pp.74-82
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    • 2002
  • Although there have been many Web site evaluation models with an explosive growth of Internet, they seem to be not fully considering various aspects of Web sites resulting from their changing roles. This paper proposes a method for evaluating Internet Web sites based on an integrated view. The method consists of 4 views including user-judgement view, user-performance view, expert-judgement view, and expert-performance view. Working procedures of the method along with tools and techniques and its implications are presented.

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Development and Management of Performance Indicators of Local Government for Citizen's Communication (지방정부의 소통성과지표 개발 및 관리방안에 관한 연구)

  • Chai, Eunkyong;Lee, Chang Kil
    • Journal of Urban Science
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    • v.7 no.2
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    • pp.11-19
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    • 2018
  • Local governments in South Korea are making efforts to promote highly effective policies through activating communication with citizens as a major innovation strategy. The performance evaluation system includes new performance indicators related to communication with citizens. This is a change to build a consumer-centered performance management system. The purpose of this study is to present guidelines when developing and applying the communication indicators promoted by local governments with interest. For this purpose, the development scope and management methods of the communication performance indicators are presented. For communication performance management, this study emphasized building a strategy planning based performance management system, presenting information that can be understood by citizens, complying with the development procedures of performance indicators, and improving qualitative indicators. In addition, for effective performance management, this study presented the decision-makers' strong willingness, gradual expansion of communication evaluation, establishment in organizational performance culture, and so on.