• 설비공학논문집
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• 제23권8호
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• pp.580-586
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• 2011

In this study, 3 cooling systems of apartment which are air-cooled air conditioner with indoor unit, water-cooled air conditioner with indoor unit and small capacity absorption chiller-heater with FCU have been evaluated by Multi-Criteria Decision Making Analysis. Weights of 7 selected factors which are economics, space, billing, constructability, human comfort, visibility and reliability are determined by expert group of 30 system designers and 30 construction engineers. Final weights were derived for 101 and 166 $m^2$ apartments. Analysis shows that small capacity absorption chiller-heater with FCU is the most favorable system for apartment cooling system.

• 방송공학회논문지
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• 제14권1호
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• pp.36-43
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• 2009

최근 에러의 가시도를 측정하던 기존 패러다임의 한계를 극복하고자 structural similarity (SSIM) metric이 제안되어 우수한 성능을 보이고 있다. 하지만 SSIM은 기존에 활발히 연구되어오던 인간시각체계의 민감도에 대한 특성을 완전히 배제함으로써 새로운 한계점을 노출한다. 본 논문에서는 포비에이션 포인트로부터의 거리, 평균 휘도 값, DCT 계수, 모션 정보를 이용하여 통합된 시각적 가중치를 정의하였고 이를 SSIM과 자연스럽게 결합함으로써 성능을 개선하였다. VQEG 멀티미디어 그룹의 테스트 플랜을 이용한 테스트를 통해 본 논문의 품질측정 기준이 기존의 SSIM 보다 주관적 화질평가의 결과와 연관도가 더 높음을 보임으로써 성능 향상을 증명하였다.

• 사상체질의학회지
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• 제35권4호
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• pp.23-41
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• 2023

Objectives This study is aimed to develop criteria for assessing the health level of cancer survivors through patient reported outcome based on sasang constitutional symtomology. Methods As a result of the researchers' meetings and the first round of expert group consultation, the constitutional health level assessment items that would be common to all Sasang constitutions were extracted, and constitutional health level assessment items for cancer survivors were selected. A second round of expert group consultation was conducted to determine the importance and weighting of these items for each constitution. Results & Conclusions For soeumin, the importance ranking and calculated weight were as follows: 'I had sweats even when I was not hot or exercising.(1st, 4.09)', 'I had night sweats while sleeping(2nd, 3.94)', 'I lost weight.(3rd, 3. 75)', etc. For soyangin, as follows: 'I had night sweats while sleeping.(1st, 3.08)', 'I had vomiting.(2nd, 3.02)', 'I felt hot flashes in the afternoon or at night. (3rd, 2.73)', etc. For taeumin, as follows: 'I was out of breath.(1st, 3.48)', 'My heart was pounding for no reason.(2nd, 3.45)', 'My body was swollen.(3rd, 3.22)', etc. For taeyangins, as follows: 'I couldn't urinate well.(1st, 4.49)', 'I vomited(2nd, 4.44).', 'My upper abdomen were hard.(3rd, 3. 14)', etc. Based on the results, we developed a draft of a questionnaire to assess the Sasang constitutional health level of cancer survivors, weighted for each item.

• 한국지반신소재학회논문집
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• 제18권4호
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• pp.151-165
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• 2019

본 연구에서는 저유동성 몰탈 채움을 통한 기존 항만 구조물의 내진성능 향상을 위해 시공 위치에 따라 4가지(자중증가, 활동력 감소 등) 보강방안을 제시하였으며, 이론적 방법 및 수치해석적 방법으로 보강 시 효과(안정성, 시공성, 경제성)를 분석하여 최적 방안을 제시하였다. 본 연구 결과 인공지진파를 적용한 동적 시간이력해석을 수행한 결과 보강 후 수평변위는 보강 전 수평변위에 비해 감소하였으나 보강 방안별 지진시 변위 억제 효과는 큰 차이가 없는 것으로 평가되었다. 강도감소법과 한계평형해석법을 적용하여 원호활동 파괴특성을 검토한 결과 수동말뚝 형태의 개량 방안이 다른 보강방법에 비해 안전성이 높은 것으로 평가되었다. 이는 보강체로 인해 활동 파괴면의 전단강도가 증가하였기 때문이다. 또한, 시공성 및 경제성을 분석한 결과 토압 저감형태(Type 02)와 수동말뚝 형태(Type 03)가 우수한 것으로 나타났다. 다만, 수동말뚝 형태의 경우, 설계법 적용 사례가 미미하고, 지반 조건에 따라 시공이 불가하거나 경제성이 급격히 저감되는 등 여러 가지 제약조건을 가지고 있어 적용시 주의가 요구된다.

• 한국농촌건축학회논문집
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• 제26권1호
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• pp.1-9
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• 2024

This study was motivated by the need to identify the characteristics of professionals involved in planning exterior spaces in urban development projects and to provide guidelines for maintaining the identity of urban images. Urban development's impact on external spaces can alter the image of the urban structure, especially due to the many boundaries between urban and rural areas. Therefore, there is a need for public standards for external spaces in such projects. This study collects and analyzes experts' opinions to understand the characteristics of each professional, selects the relative importance of each, and uses this as a guideline for step-by-step deliberation in planning external spaces. The research scope includes analyzing each expert's characteristics based on the external space evaluation items from Lee Limjeong's 2023 study, which builds upon existing research, and presenting the importance and priority of each expert. As a methodology, a questionnaire was conducted for each expert group using the indicators established in Lee Lim Jung's 2023 study for external spaces in urban development projects. An in-depth analysis was performed using the Analytic Hierarchy Process (AHP) for each expert. Using AHP analysis, the composite weight for each of the 17 detailed items was first adjusted by the number of item weights to account for the classification level of the large and detailed items. Then, the composite importance was calculated by multiplying the importance of the large, medium, and detailed classifications. The calculated composite importance was finally adjusted by applying the number of item weights again, ensuring the sum of the 17 importance values equals 1. The final importance calculated through this process was then presented by occupation.

• 사상체질의학회지
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• 제27권2호
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• pp.211-221
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• 2015

Objectives The aim of this study is to develop a Korea Sasang Constitutional Diagnostic Questionnaire (KS-15) with practicality and validity. Methods The data of body shape, temperament and symptoms were collected from 11 nationwide multi-centers in Korean Medical Clinics between Nov. 2009 to Aug. 2012. KS-15 algorithm was developed through Multinomial Logistic Regression and was applied for test group to verify it's classificatory function. Results The weight value of variables of KS-15 were different between male and female. The concordance of KS-15 with the expert in training group was 58.34% (72.8% in Tae-eumin, 54.8% in Soeumin, and 44.1% in Soyangin). The concordance of KS-15 with the expert in test group was 63.1% (63% in Tae-eumin, 83.3% in Soeumin, and 51.9% in Soyangin). Conclusions KS-15 seems to have suitable implement with practicality and validity. Further study is necessary to verify it accuracy and cut-off.

• 대한간호학회지
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• 제35권5호
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• pp.817-828
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• 2005

Purpose: This study was to identify the persuasive effects of exercise promotion advertisements for obesity prevention according to the source types( ordinary people, experts, celebrity endorsers) and advertising message types(slices of life, testimonials). Method: Gender, height, body weight, BMI, attitude toward obesity(Aob) and exercise(Aex), and intention to exercise(Iex) were collected from 626 elementary school students in a pretest. After 2 months, six advertisements type attached to a questionnaire were provided for 20 minutes and then Aob, Aex, lex, source credibility and attitude toward advertisements(Aad) were collected in posttest. Result: 1) In posttest the lex of 6 the groups increased significantly compared with that of the pretest, 2) Source credibility of the Ordinary+Testimonial group was lower than the Celebrity+Testimonial, Celebrity+Slice of life, Ordinary+Slice of life, and Expert+Testimonial groups, Aad of the Celebrity+Testimonial group was higher than the Ordinary+ Testimonial group. 3) The Main effect and interaction effect of source types and advertising message types were significant in source credibility and Aad, Conclusion: Persuasive effects of exercise promotion advertisements in elementary school students was found to be the most effective in Celebrity+Testimonial. This study suggests that selection of health education advertisements according to demographic characteristics is important to promote persuasive effects.

• 한국운동역학회지
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• 제22권1호
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• pp.43-53
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• 2012

The purpose of this study was to quantitatively examine the biomechanical variables of Fouette turns for expert and beginner ballet dancers and to determine the difference in the variables between the two groups. sixteen female ballet dancers participated in this study. They were divided into an expert group(age, $25.38{\pm}1.92$ years; height, $168.38{\pm}4.66$ cm; mass, $49.63{\pm}4.41$ kg) and a beginner group(age, $20.88{\pm}1.13$ years; height, $161.63{\pm}7.42$ cm; mass, $48.88{\pm}3.64$ kg) depending on their ballet experience. Descriptive data were expressed as mean ${\pm}$ standard deviation (SD) for all variables including the duration, displacement of the center of the body, velocity of the center of the body, angle of the body segments, angular velocity of the body segments, ground reaction force, lower extremity torque, muscle activity, body weight, age, and body mass. An independence t-test was conducted to determine how the following variables differed between the beginners and experts: duration, displacement of the center of the body, velocity of the center of the body, angle of the body segments, angular velocity of the body segments, ground reaction force, lower extremity torque, and muscle activity. All comparisons were made at the p<0.05 significance level. The results show that the experts scored high on the biomechanical variables, although all the variables were not significant. Significant differences were found in the angle of body segments, angular velocity of the body segments, lower extremity torque, and muscle activity(p<0.05). The findings of this study demonstrate that the experts have the required skill to make an improved Fouette turn. The findings may also help ballet dancers to learn and understand the Fouette turn.

• 한국지반공학회논문집
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• 제30권4호
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• pp.47-63
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• 2014

육상 및 항만 구조물 설계시 적용되고 있는 토압 이론(Rankine, Coulomb, 시행쐐기법, 개량시행쐐기법)을 정리하였고, 구조물 형태에 따라 가상배면(Vitural back, wall, plane)과 구조물 벽면에 작용하는 토압 특성 등을 제시하였다. 토압 특성을 검토하기 위해 육상구조물의 경우 배면토 경사에 따른 캔틸레버식 옹벽과 벽경사에 따른 중력식 옹벽, 해상구조물은 케이슨식 안벽과 블록식 안벽을 적용하였다. 여러 가지 토압이론을 적용하여 뒷굽 길이에 따른 토압, 작용각(벽면마찰각), 벽면측으로의 활동각 등을 분석한 결과 뒷굽이 긴 경우 가상배면에서의 작용토압은 Rankine 토압과 작용각은 지표경사각, 뒷굽이 짧은 경우 Coulomb 방법과 작용각은 벽마찰각으로 산정하는 것이 가장 합리적임을 알 수 있었다. 벽면측으로의 활동각은 Rankine 이론에 의한 활동각보다 큰 것으로 나타났다. 또한, 본 논문에서는 현재 적용되고 있는 여러 가지 토압 산정법 및 작용각 중에서 항만 구조물 설계시 적용할 수 있는 적정 토압 산정방법을 제안하였다. 제안방법은 뒷굽장단 결정과 이에 따른 적정 토압산정법을 결정하고 벽면 측으로의 활동각에 따른 옹벽자중 고려 방법을 설정하도록 하였다.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2004년도 추계학술대회 논문집
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• pp.215-220
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• 2004

The purpose of this study is to develope evaluating indicators for housing plan on slope-site. At first, housing plan elements were derived from existing studies, and then, the importance of elements were evaluated by expert group. AHP(Analytic Hierarchy Process) was used to calculate the weight of housing plan elements on slope-site. The results are as follows: 'building layout' is relatively important, and followed important elements are selected as 'pedestrian circulation' and 'parking plan', and then, detail elements for building layout, 'daylight', 'view', 'privacy' and 'using level' are all relatively important.