• Title/Summary/Keyword: Trend comparison

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Study on Mapping Methodof Liquefaction hazard Potential in Korea (국내의 액상화 구역도 작성 기법에 관한 연구)

  • 강규진
    • Proceedings of the Earthquake Engineering Society of Korea Conference
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    • 2000.04a
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    • pp.141-150
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    • 2000
  • In this study liquefaction hazard potential was assessed by modified Seed and Idriss method and maps of liquefaction hazard potential utilized by LPI(Liquefaction Potential Index) and FE(Equivalent Liquefaction Factor of Safety) were constructed in two dimensional space, Comparisons of liquefaction hazard maps assessed by LPI and FE are represented to verify the FE method proposed in this study. Based on the results of comparing liquefaction hazard map using LPI and FE there is similar distribution trend of zonation indices. from the result of comparison of liquefaction hazard maps of FE base using Hachinohe and ofunato PGA(Peak ground Acceleration) data at one site of port and harbor in Korea the values of FE in liquefaction hazard map using Hachinohe data are underestimated. And in the view of quantitative analysis FE is more convenient than LPI because types of results from FE are factor of safety that widely used in geotechnical practice and aseismic design standard for port and harbor in Korea.

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A Study on the Chronic Change of the Space Allocation and the Development Trend in General Hospitals in Korea - Focused on the 1970's, 80's and 90's - (국내 종합병원의 연대별 면적변화와 발전과정에 관한 조사 연구 -1970, 80, 90년대를 중심으로-)

  • Lee, Cheol-Seung;Yang, Nae-Won
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.5 no.9
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    • pp.17-23
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    • 1999
  • The Korean hospitals have been changed a lot from 1970's to 1990's, not only in their space allocation but also in their functions. These changes were affected by the medical development, social atmosphere, increasing population, needs of medical demands, and so on. In this study, we compared net area allocation involve in these affect of hospitals which were built in 1970's, 80's, and 90's, and through this comparison, we analyzed developing tendencies of hospitals. In doing so, we tried to provide basic research data for planning of new hospital buildings.

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An Evaluation on the Sound Insulation Performance of Drywall for High-Rise Buildings (초고층 건물에 적용 가능한 건식벽체의 차음성능 평가)

  • Lee, Sang-Woo;Yoo, Ho-Chun;Lee, Su-Yeal;Jung, Gap-Chul;Jung, Young-Min
    • KIEAE Journal
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    • v.7 no.2
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    • pp.3-8
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    • 2007
  • Recently, the structural system of public residential buildings has been changed from the reinforced concrete (RC) wall system to the (PC) wall and moment resisting systems. Thus, it is important to develop the suitable wall system in accordance with the trend of the modern structural system. This paper presents the basic study on the suitable boundary wall in high-rise buildings. The research also demonstrates the evaluation results on sound characteristics in the aspect of sound insulation. The evaluation of sound insulation capability for the commercialized wall structure was conducted based on literature survey while the measurement of sound insulation capability for the light-weght EPP concrete was performed in according to KS F2808 in laboratory. The main objective of this research is to propose the most suitable dry wall system as a sound insulation structure through the comparison and analysis of frequency characteristics and weight-acoustic attenuation.

Integrative Study on the Structure of Five Viscera (오장(五臟)의 구조에 대한 통합의학적 고찰)

  • Lee, Soo-Jin
    • Journal of Haehwa Medicine
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    • v.21 no.1
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    • pp.23-31
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    • 2012
  • Allopathic medicine has had a lot of limits though it has maintained the status of mainstream medicine, therefore these days there has been a growing interests in traditional medicine of East Asia. According to this trend, the integration between allopathic medicine and traditional medicine has become a hot issue and the need of mutual understanding on their physiology and pathology increases. However, understanding of traditional medical theory based on ying-yang, five phases, viscera and bowels is still difficult to be accepted to allopathic medical fields. Therefore, this research tried to investigate the similarity and differences of the structures between five viscera and organs. As a result, this research found that the investigation and understanding on viscera in traditional medicine or organs in allopathic medicine has in common in some degree. However, the integration and comparison between two medicines should be done cautiously because there still are the basal different points of understanding of human structure and function.

Comparison of Performance Evaluation Methods Based on the Estimation of Nonlinear Seismic Responses for Multistory Building (건축구조물의 비선형 지진응답 산정을 위한 내진성능평가 방법의 비교)

  • 최원호;이동근
    • Proceedings of the Earthquake Engineering Society of Korea Conference
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    • 2002.03a
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    • pp.349-356
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    • 2002
  • There has been an increasing trend toward the use of pushover analysis as a tool for evaluating the seismic resistant and safety of a building structure in the performance based earthquake engineering field. The ATC-40 document proposed a nonlinear static procedure based on the Capacity Spectrum Method to determine earthquake-induced demand given the structure pushover curve, which a curve representing base shear versus roof displacement. However, the procedure is conceptually simple, iterative and time consuming method and may sometimes lead to no solution or multiple solutions. A new improved method of seismic performance evaluation for moment frame building, which take into account the previously mentioned deficiencies of currently used elastic design procedures, is presented in this paper. The results of nonlinear static and nonlinear time history analysis of an example high-rise steel moment frame designed by the proposed method are presented and discussed.

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A Study on the Comparison of the Next Generation EDI Technologies (차세대 EDI 기술의 비교.분석에 관한 연구)

  • 황경태
    • The Journal of Society for e-Business Studies
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    • v.4 no.3
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    • pp.213-234
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    • 1999
  • Currently, various international standard organizations, academic institutes, and private organizations are making efforts to improve and expand the traditional EDI. The next generation EDI has potential to impact on the existing and planned EDI systems. Major objective of this study is to systematically analyze and compare various next generation EDI technologies. In order to accomplish the research objective, this paper presented the following three issues. First, overall development trend and types of the next generation EDI were analyzed. Secondly, basic concepts of a few important next generation EDI technologies were presented. Lastly, models to be used to analyze the various next generation EDI technologies were proposed and results of the analyses peformed based on the proposed models were presented.

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A NUMERICAL ANALYSIS USING CIP METHOD (CIP 방법을 사용한 해석법)

  • Lee, J.H.;Hur, N.
    • 한국전산유체공학회:학술대회논문집
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    • 2009.11a
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    • pp.211-217
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    • 2009
  • The numerical program has been developed for the purpose of the complicate geometries application using CIP method. The non-staggered, non-orthogonal, and unstructured grid system can be also used for the various geometries in the program. For validating CIP solver, the lid-driven cavity flow and solitary wave propagation flow are carried out. Test results show a good agreement with the verified results. The dynamic solver was used for the behavior of moving body. Interface process between the two solvers is introduced. The research was performed on the flow problem around torpedo and log and the flow problem in a tank in order to analyze the three phase flow problem Although the comparison to the verified results was not quantitatively performed, the trend of the results was reasonable.

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The Trend of Clothing Colors Fitted for Personal Color Types (개인색채 유형에 따라 어울리는 의복색 경향)

  • 박화순
    • Journal of the Korean Society of Costume
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    • v.52 no.6
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    • pp.15-24
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    • 2002
  • This paper is to investigate and analyze the clothing colors fitted for personal color types and to help consumers express individual characteristics by clothing colors suitable for themselves. The comparison of sixty three clothing colors with three personal color types. and investigation and analysis of the best clothing colors of each type have led to the following results. Those belong to warm Personal Color Type don't have a variety of choices for clothing colors. so they should be careful of choosing clothing colors. They will do well to choose dark tone colors for their clothing. Those of Cold Personal color Type have a wide range of choices for clothing colors. They have an advantage of expressing themselves in various ways. Neutrals, Blue and Yellow have been found to go well with them. Those of Mixed Personal Type are advised to wear bright and pale tone colors such as Purple, Green, and Red. It will be desirable that the choice of clothing colors should conform to each personal color for the tones of clothing colors should conform to each personal color for the tones of clothing colors make difference according to personal color types.

A Study on the Comparison of Optimal Solutions by Major Forecasting Methods - For the case of the cement product - (주요(主要) 수요예측기법(需要豫測技法)에 의한 최적해(最適解)의 비교연구(比較硏究) - 시멘트제품(製品)의 경우(境遇)를 중심(中心)으로 -)

  • Jeong, Bok-Su
    • Journal of Korean Society for Quality Management
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    • v.12 no.2
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    • pp.25-32
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    • 1984
  • The purpose of this paper is to compare several forecasting methods for the case of the cement product by the analysis of the forecasting data and by the study of major forecasting methods, which are the Trend Projection, Exponential Smoothing, and Multiple Regression Analysis. As a result, it is thought that the Multiple Regression Analysis is the optimal model for the case of the cement product. In addition, it is important to consider the future circumstances for forecasting, and to improve the level of the forecasting results through the precise analysis of the collected data.

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Ergonomic Considerations for the Design of a CRT-based Process Control System (CRT 방식 생산공정 제어용 계장시스템 설비의 인간공학적 고찰)

  • Chung, Min-Keun;Choi, Jae-Hyun;Jung, Eui-Seung
    • Journal of Korean Institute of Industrial Engineers
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    • v.16 no.2
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    • pp.11-21
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    • 1990
  • With a general trend toward larger and more complex systems with centralized control, an operator's role of supervisory decision making in the control room becomes more important. Identification of potential man-machine interface (MMI) problems with CRT-based process control systems was attempted using a structured questionnaire survey. Based on the survey results, a laboratory experiment was carried out to investigate the performance of alarm detection on a process control CRT display. The user performance was measured in terms of reaction time from the onset of an alarm sound until the completion of predefined response procedures. The results revealed that for a highly complex tasks, mean reaction time ($\bar{RT}$) with a color consistent display was 10.5% faster than that with the original display, and $\bar{RT}$ with a grouped display was reduced by 8.2% in comparison with the color consistent display.

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