• 한국수자원학회논문집
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• 제41권6호
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• pp.605-617
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• 2008

본 연구에서는 우리나라 홍수유출의 특성을 종합적으로 표현할 수 있는 홍수지수를 개발하였다. 홍수유출특성을 종합적으로 지수에 반영하기 위하여 유출곡선으로 표현되는 홍수유출의 특성을 홍수수문곡선의 상승률, 첨두유량, 홍수 응답시간, 첨두발생 전 홍수용적 등 4가지의 특성인자로 표현하였다. 이러한 유출특성인자를 객관적인 상대심도로 표현하기 위하여 본 연구에서는 특성인자의 분포함수를 표준정규분포함수로 변환하여 특성지수를 산정하였다. 본 연구에서 산정한 종합홍수지수(Comprehensive Flood Index, CFI)는 기존의 돌발홍수지수(Flash Flood Index, FFI)의 문제점을 보완한 것으로 홍수의 심도를 유역별로 상대평가할 수 있는 특징이 있다. 본 연구에서는 한강과 설마천 유역에 대하여 CFI를 산정하고, 상관분석과 회귀분석을 통해 FFI와 비교 평가하였다. CFI는 산정과정에서 특정 홍수유출 특성에 지배받지 않아 종합적으로 홍수유출특성을 표현할 수 있고, FFI에 비해 강우-유출관계를 효과적으로 설명할 수 있었다.

• 대한조선학회논문집
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• 제30권1호
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• pp.10-19
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• 1993

최적설계는 일반적으로 주어진 설계에 적용할 경제성평가기법을 필요로 한다. 본 연구에서는 선박용 발전장치 설계에 적용되는 경제성평가방법을 제시하였다. 가능한 발전 장치들에 대하여 그 투자액의 회수기간과 순현가를 경제성 지수화 하고 또, 그 설계된 장치의 운전상의 난이도를 평가하여 지수화 하고 이 지수들을 종합하여 종합경제성평가지수를 산출하여 이 지수로 발전장치 선정의 기준으로 삼도록 하였다. 이 방법을 실선의 설계에 적용하여 유용성을 보였다.

• 한국치위생학회지
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• 제9권2호
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• pp.165-178
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• 2009

The purpose of this study was to provide basic information for improving oral health and dental hygiene through comprehensive dental hygiene care. The subjects in this study were 54 patients who had been treated for 4 weeks in clinic of the Dental Hygiene Department of G University under comprehensive dental hygiene control and care and measured their oral condition, intensity of oral malodor, Simplified Oral Hygiene Index (S-OHI), and Modified Personal Hygiene Performance Index (PHP-M), and surveyed their oral health behavior and oral health consciousness. The results of the study were as follows: 1. The intensity of malodor decreased by 16.49ppb from 75.33ppb on the first visit to 50.84ppb on the last visit when the comprehensive dental hygiene care had been finished. 2. As to change in S-OHI according to gender between the first visit and the last visit for comprehensive dental hygiene care, S-OHI decreased from 2.89 on the first visit to 1.16 on the last visit, and the difference was statistically highly significant. 3. As to change in PHP-M index by tooth according to gender and age between the first visit and the last visit, PHP-M index of the first 6 teeth decreased very significantly from 0.50 on the first visit to 0.34 on the last visit. 4. As a whole, significant improvement was observed in every tooth. According to gender and age, PHP-M index for Tooth No. 26, 36 and 32 decreased significantly in men and women, and those aged under 30 and those aged 30 or over, but for Tooth No. 13 and 15 and 44 it decreased significantly only in men and those aged 30 or over, and for Tooth No. 44 only in men. As presented above, the oral health behavior and oral health consciousness of the visitors to the oral prophylaxis practice room are very important, and it is necessary to enhance their interest in and knowledge of how to improve oral health. Furthermore, comprehensive dental hygiene care required for improving the visitors' oral health.

• 보건의료산업학회지
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• 제5권3호
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• pp.145-155
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• 2011

This study is Dental Hygiene Department of G University for comprehensive dental hygiene control and treatment weekly for four weeks from September 16 to October 20, 2010, excluding those who visited for ambulatory treatment of systemic diseases. For the 90 subjects, we performed oral examination, measured Simplified Oral Hygiene Index (S-OHI), Modified Patient Hygiene Performance (PHP-M), and O' Leary Index, and applied comprehensive dental hygiene control. First, as to the change of OHI according to age, the index in the 1st measurement was 3.43 in those under 35 and 3.17 in those aged 35 or older, so it was higher in the younger group, but in the 2nd measurement it was 1.89 in those under 35 and 2.14 in those aged 35 or older, and in the 3rd measurement it was 1.22 in those aged 35 or older, so it was higher in the older group. Second, as to the change of PHP-M according to age, the index in the 1st measurement was 50.35 in those under 35 and 43.16 in those aged 35 or older, soit was higher in the younger group, but in the 2nd measurement it was 31.97 in those under 35 and 28.88 in those aged 35 or older, and in the 3rd measurement it was 21.31 in those aged 35 or older, so it was higher in the older group.

• The Journal of the Acoustical Society of Korea
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• 제29권3E호
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• pp.107-110
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• 2010

In this paper, the rationale and contents of the special issue of the Journal of the Acoustical Society of Korea regarding comprehensive reviews on past, present and future of biomedical ultrasound are described. Brief descriptions of invited articles are given, and efforts by all contributing authors are gratefully acknowledged.

• 기술혁신연구
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• 제12권1호
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• pp.67-114
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• 2004

This study attempts to integrate causal model with competitiveness evaluation model, both of which have developed independently of each other, in connection with many studies on PMES (performance measurement and evaluation system) including the BSC (balanced scorecard) of Kaplan and Norton (1992, 1996). For this attempt, this study is composed of four analyses : First, this study develops a structural model for evaluating and diagnosing corporate ‘comprehensive’ competitiveness including quality competitiveness, derive CCI (comprehensive competitiveness index) and QCI (quality competitiveness index) ; Second, this study analyzes the determinants of quality competitiveness, the impacts of quality competitiveness, on product design and product reliability, and the impacts of product design and product reliability on quality competitiveness in the comprehensive competitiveness evaluation model of this study. Third, this study empirically identifies the positioning of product design in the quality competitiveness evaluation model of this study and the functional relationship between product design and other functions : product development, manufacturing, marketing, and marketing, and sales in the same comprehensive competitiveness evaluation model, estimate the determinants of product design and its impacts, thereby providing some empirical findings for the foundation of design management theory, and Fourth, this study identifies the positioning of product reliability in the same quality competitiveness evaluation model, estimate the reliability function and the functional relationship between product reliability and other dimensions of product quality, and tests the hypotheses on the causality of product reliability.

• 대한안전경영과학회지
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• 제17권4호
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• pp.1-12
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• 2015

Recent construction site large disaster occurs in, even normal disaster not be reduced, the efforts of pre-disaster prevention for this is also a need to study the evaluation index. By comprehensive examination zero reform the current lowest bid system has included the social responsibility index is scheduled, objective and quantitative evaluation indicators making construction safety areas that are included in the item of social responsibility is required ing. In this study, the construction, in order to prevent disasters, efforts pre disaster prevention be presented metrics in the construction safety in the field of comprehensive examination system and the evaluation index, it is intended to examine the evaluation items for the evaluation indices.

• 지역연구
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• 제32권1호
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• pp.51-66
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• 2016

본 연구에서는 전국82개 도시를 대상으로 도시쇠퇴의 정도와 쇠퇴가 진행되는 과정에 관성이 있는지 확인하고, 도시가 처해있는 상황에 따라 어떤 방식의 대응방향이 필요한지 고민하였다. 향후 도시가 계속 성장할 것인지 혹은 계속 쇠퇴 할 것인지, 성장세가 둔화되어 쇠퇴할 것인지, 쇠퇴하던 곳이 성장세로 돌아설 가능성이 있는지, 각 도시의 전개 방향에 실마리를 찾고자 했다. 분석기간은 2005년과 2010년이며, 년도 별로 산정된 복합쇠퇴지수에 나타난 도시쇠퇴의 변화, 쇠퇴의 관성에 대해 분석하였다. 그 결과 도시쇠퇴에 관성이 존재하는 것을 확인할 수 있었다. 일부 도시에서는 쇠퇴가 고착화 되는 것으로 보인다. 이러한 곳에서는 성장시대 도시계획 수단과 개념을 쇠퇴환경에 맞추어 사용할 수 있도록 변화 시켜야 한다. 도시쇠퇴를 바라보는 관점을 재정의 하고 쇠퇴로부터 발생하는 물리 환경의 변화를 적절히 관리하기 위한 방안 모색도 필요하다. 도시의 발전방향과 가능성에 대한 인식을 바꾸고, 공간정책의 틀도 이를 반영해 마련할 필요가 있다.

• 한국물환경학회지
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• 제22권5호
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• pp.748-756
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• 2006

Accurate and timely information on status and trends in the environment is necessary to shape sound water quality management policy and to implement water quality improvement programs efficiently. One of the most effective ways to communicate information on water quality trends to policy-makers, scientists, and the general public is with comprehensive water quality indices. The derivation and structure of a water quality index (WQI) for the classification of surface water quality is discussed. The WQI generally developed through the selection, transformation and weighting of determinants with rating curves based on legal standards and quality directives or guidelines. The representative pollutants should be included in the index, and the relationship between the quantity of these pollutants in the water and the resulting quality of the water should be based on scientific results. The WQI be simply and meaningfully formulated that nonscientifically trained users can easily become familiar with the framework of the system and use the output data to evaluate their own pollution problems.

• Structural Engineering and Mechanics
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• 제63권5호
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• pp.639-646
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• 2017

According to the multi-index system of dam safety assessment and the standard of safety, a comprehensive evaluation model for dam safety based on a cloud model is established to determine the basic probability assignment of the Dempster-Shafer theory. The Dempster-Shafer theory is improved to solve the high conflict problems via fusion calculation. Compared with the traditional Dempster-Shafer theory, the application is more extensive and the result is more reasonable. The uncertainty model of dam safety multi-index comprehensive evaluation is applied according to the two theories above. The rationality and feasibility of the model are verified through application to the safety evaluation of a practical arch dam.