• Title/Summary/Keyword: case-study method

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Review on Geumnaeng Method - Focus on Chinese Medical Articles - (금냉법(金冷法)에 대한 고찰 - 중국 논문을 중심으로 -)

  • Park, Haemo
    • Journal of Society of Preventive Korean Medicine
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    • v.22 no.3
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    • pp.73-81
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    • 2018
  • Objectives : 'Geumnaeng method'' is a well-known folk remedy, but It has not been studied in academia. This study was conducted to review the chinese published articles on Geumnaeg method (Jinleng method) of Chinese traditional medicine. Methods : The author searched Chinese published papers from 2000 to 2018 via CNKI(China National Knowledge Infrastructure) database by using keyword 'Jinleng', 'Jinleng method', and analyzed the papers covered Jinleng method health preservation, and classified them including periods, type of study, target symptoms, and comparison between countries. Results : 17 studies were reviewed. The study of Jinleng method in China began in 2005. 8 articles (47.1%) were review articles, 4 articles (23.5%) of the case report and case series, and 5 articles (29.4%) were clinical studies. Clinical studies have increased since 2008. Most of the studies related to genital disorders and sexual function were mainly performed. There were differences between Japan, Korea and China in Jinleng method. Conclusions : Various disease and symptoms was researched with Jinleng method in China. Research in China is more active than other country. We need to increase the level of evidence of Jinleng method's effectiveness through additional studies in the future.

A Case Study on the Application of Decomposition Principle to a Linear Programming Problem (분할기법(分割技法)을 이용한 선형계획법(線型計劃法)의 응용(應用)에 관한 사례 연구(事例 硏究))

  • Yun, In-Jung;Kim, Seong-In
    • IE interfaces
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    • v.1 no.1
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    • pp.1-7
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    • 1988
  • This paper discusses the applicability of the decomposition principle to an LP (Linear Programming) problem. Through a case study on product mix problems in a chemical process of Korean Steel Chemical Co., Ltd., the decomposition algorithm, LP Simplex method and a modified method are compared and evaluated in computation time and number of iterations.

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A case study on RAM analysis for a military full-tracked armored vehicle using a statistical method (통계기법을 이용한 무한궤도형 군용 장갑차량의 신뢰성, 가용성 및 정비성 분석 사례 연구)

  • 김상원
    • Korean Management Science Review
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    • v.11 no.1
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    • pp.117-128
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    • 1994
  • This paper describes a case study on the analysis of RAM(Reliability, Availability, and Maintainability) factors obtained from the Endurance-Test for a military full-tracked armored vehicle. In analysing RAM factors of the vehicle we used such a statistical technique as method of Maximum-Likelihood for estimating parameters.

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A Case study of Ground Treatment for Container Terminal Site Formation with Full Dredging and Replacement Method (완전준설 치환공법에 의한 컨테이너 부지조성 사례)

  • Hong, Eui;Sim Dong-Hyun
    • 기술발표회
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    • s.2006
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    • pp.235-247
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    • 2006
  • A ground treatment work for Hongkong container terminal yard is reported as a case study of site formation work with full dredging and replacement method. Ground treatment work adopting surcharge and deep compaction (vibroflotation) were applied to improve the sand creep potential. The sand creep parameter of 0 25% was assumed in design stage and improved up to 0.05% and 0.02% after surcharge and deep compaction respectively

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Development of Short-Term Load Forecasting Algorithm Using Hourly Temperature (시간대별 기온을 이용한 전력수요예측 알고리즘 개발)

  • Song, Kyung-Bin
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.63 no.4
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    • pp.451-454
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    • 2014
  • Short-term load forecasting(STLF) for electric power demand is essential for stable power system operation and efficient power market operation. We improved STLF method by using hourly temperature as an input data. In order to using hourly temperature to STLF algorithm, we calculated temperature-electric power demand sensitivity through past actual data and combined this sensitivity to exponential smoothing method which is one of the STLF method. The proposed method is verified by case study for a week. The result of case study shows that the average percentage errors of the proposed load forecasting method are improved comparing with errors of the previous methods.

A Study on the Estimation Method for the Equipment Operating Costs in the Data Center Outsourcing Environment (데이터 센터 Outsourcing에 있어서 기기 운영비요의 산정 방법에 관한 연구)

  • Hwang, Kyung-Tae;Kwon, Oh-Hun
    • The Transactions of the Korea Information Processing Society
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    • v.4 no.6
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    • pp.1401-1417
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    • 1997
  • The major objective of this study is to propose an estimation method for the equipment operating cost in the data center outsourcing situation. To accomplish the objective, the fundamental concepts about the outsourcing pricing is first established by analyzing the previous research in this area. Then an actual case of data center outsourcing is evaluated. Based on the conceptual model and the actual case, a new method is proposed. Validity of the proposed method is verified by the quantitative comparison with the previous method. Reasonability and usefulness of the method were evaluated through the customer survey.

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Evaluating Coastal Wetland Using Environmental Indicators (환경지표를 이용한 연안습지의 평가)

  • 이동근;방광자
    • Journal of Korean Society of Rural Planning
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    • v.4 no.2
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    • pp.70-78
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    • 1998
  • The objective of this study was to enforce systematic evaluation on the present condition and ecosystem of coastal wetland to use frame of environmental indicators, For this, the indicators for evaluation of coastal wetland were established and were applied to the present condition. Then, the application possibility of this evaluation indicators and management method by group of coastal method are presented. These results present the following consideration in case that the ideal management method on the conservation and development of coastal wetlands was proposed. In case of Kang-hwa island which had the good natural environment, the mlnimum development with maintenance of the present state must be driven. In case of Tae-an which had the good natural environment and development potential, the development that was in harmony with the nature must to be driven. In case of Seo-chon which was previously developed region, the various development programs which had the minimum effects on the natural, living and socio $.$ economic environment must to be provided.

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A Study on Prediction of Inundation Area considering Road Network in Urban Area (도시지역 도로 네트워크를 활용한 침수지역 예측에 관한 연구)

  • Son, Ah Long;Kim, Byunghyun;Han, Kun Yeon
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.35 no.2
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    • pp.307-318
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    • 2015
  • In this study, the efficiency of two-dimensional inundation analysis using road network was demonstrated in order to reduce the simulation time of numerical model in urban area. For this objective, three simulation conditions were set up: Case 1 considered only inundation within road zone, while Case 2 and 3 considered inundation within road and building zone together. Accordingly, Case 1 used grids generated based on road network, while Case 2 and 3 used uniform and non-uniform grids for whole study area, respectively. Three simulation conditions were applied to Samsung drainage where flood damage occurred due to storm event on Sep. 21, 2010. The efficiency of suggested method in this study was verified by comparison the accuracy and simulation time of Case 1 and those of Case 2 and 3. The results presented that the simulation time was fast in the order of Case 1, 2 and 3, and the fit of inundation area between each case was more than 85% within road zone. Additionally, inundation area of building zone estimated from inundation rating index gave a similar agreement under each case. As a result, it is helpful for study on real-time inundation forecast warning to use a proposed method based on road network and inundation rating index for building zone.

A Case Study on the Importance of Residual Compensation in FRF-based Substructuring (주파수 응답함수를 이용한 부분구조 합성에서 모드자름 오차 보정에 관한 수치적 연구)

  • 박윤식;김경호
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.12 no.4
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    • pp.302-309
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    • 2002
  • A FRF-based substructuring method attempts to predict the dynamic characteristics of a complex structure from predetermined FRFs of the comprising uncoupled substructures. Although this method has the advantage of being able to incorporate experimental component FRFs directly, it is prone to errors : measurement errors, coordinate incompleteness, modal incompleteness, etc. Among the various sources of errors, this paper deals with the problem of modal incompleteness (or residual problem) of which importance is underestimated compared to others. It is a well-known rule of thumb that such a problem can be overcome by including modes up to 2 or 3 times the upper frequency of interest. Using a simulated case study, it is demonstrated that even including modes up to 20 times the upper frequency of interest does not guarantee a satisfactory result. A method to compensate the residual errors is introduced. This method requires the whole FRF matrices of substructures which is practically impossible for a complex structure. An applicable alternative is suggested and applied successfully to the case study. Finally, the effects of measurement errors on the residual compensation are also discussed.

A Case Study of a Drilled Shaft Design and Construction of Buildings (건축구조물에서 현장타설말뚝에 의한 대형기초의 설계 및 시공사례)

  • Joeng, Gyeong-Hwan;Jung, Dong-Young;Kim, Young-Man;Jung, Sun-Tae;Kim, Dong-Jun;Kim, Min-Sung
    • Proceedings of the Korean Geotechical Society Conference
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    • 2009.09a
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    • pp.554-563
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    • 2009
  • The trend of current urban redevelopment and new city development project shows that the superstructure of building is getting larger and higher in consequence of a limited plottage condition. For this reason, it is definitely required to extend pile diameter and install more deep foundation(Mega foundation) to support superstructure. The existing precast pile construction method causes construction-related problems such as increasing quantities, difficulty of storage & transportation material and decreasing design load while construct pile in deep foundation. The drilled shaft method has applied to minimize those problems. This article will be presented construction case study of design & construction of R.C.D method for a large building foundation work on the inside and outside of the country.

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