• Title/Summary/Keyword: evaluate index

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Questionnaire survey & Evaluation for Quality Level of Energy Management System in Buildings - survey for maintenance personnel - (건물 에너지관리 실태 및 수준 평가 - 유지관리자를 대상으로 -)

  • Kwak, Ro-Yeul;Cho, Seung-Hyuk;Kwon, Han-Sol;Huh, Jung-Ho
    • 한국태양에너지학회:학술대회논문집
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    • 2008.11a
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    • pp.112-119
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    • 2008
  • In order to ensure building energy management at an appropriate level continuously, it is necessary to define clearly service work of energy management and to suggest evaluation index whether energy management in buildings is fit and improvement is needed or not. But, evaluation index of energy management level in buildings is not suggested yet in Korea. So, the purpose of this paper is to suggest evaluation index of energy management level in buildings, investigate the present state of Korean buildings and evaluate energy management levels. As a result of surveys of evaluation index of energy management, it is found that portion of level 1, which is the best level, is higher than any other level, level 2, level 3. And, throughout analysis, it is found that as total floor area is larger, evaluation index of energy management level is better, and, in order to increase energy management level, first of all, there is necessary for building's users to change understanding about energy saving and make a reform of national policy of energy management in buildings. Because there is rich relationship between items among evaluation index of this stuff and result value of evaluation index, evaluation index of energy management suggested in this study is available to evaluate energy management level in buildings.

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Quantification of three-dimensional facial asymmetry for diagnosis and postoperative evaluation of orthognathic surgery

  • Cao, Hua-Lian;Kang, Moon-Ho;Lee, Jin-Yong;Park, Won-Jong;Choung, Han-Wool;Choung, Pill-Hoon
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.42
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    • pp.17.1-17.11
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    • 2020
  • Background: To evaluate the facial asymmetry, three-dimensional computed tomography (3D-CT) has been used widely. This study proposed a method to quantify facial asymmetry based on 3D-CT. Methods: The normal standard group consisted of twenty-five male subjects who had a balanced face and normal occlusion. Five anatomical landmarks were selected as reference points and ten anatomical landmarks were selected as measurement points to evaluate facial asymmetry. The formula of facial asymmetry index was designed by using the distances between the landmarks. The index value on a specific landmark indicated zero when the landmarks were located on the three-dimensional symmetric position. As the asymmetry of landmarks increased, the value of facial asymmetry index increased. For ten anatomical landmarks, the mean value of facial asymmetry index on each landmark was obtained in the normal standard group. Facial asymmetry index was applied to the patients who had undergone orthognathic surgery. Preoperative facial asymmetry and postoperative improvement were evaluated. Results: The reference facial asymmetry index on each landmark in the normal standard group was from 1.77 to 3.38. A polygonal chart was drawn to visualize the degree of asymmetry. In three patients who had undergone orthognathic surgery, it was checked that the method of facial asymmetry index showed the preoperative facial asymmetry and the postoperative improvement well. Conclusions: The current new facial asymmetry index could efficiently quantify the degree of facial asymmetry from 3D-CT. This method could be used as an evaluation standard for facial asymmetry analysis.

Helkimos Indices and Frictions Craniomandibular Index in Korean Young Population

  • Kyoung-Ho Lee;Keun-Kook Lee;Young-Ku Kim
    • Journal of Oral Medicine and Pain
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    • v.17 no.1
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    • pp.89-94
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    • 1992
  • To evaluate Helhimo's Anamnestic Dysfunction Index(AI), Helkimo's Clinical Dysfunction Index(HDI), and Friction's Craniomandibular Index(CMI) in Korean Young population, clinical examinations were performed in 207 dental college students who were healthy and had no evidence of the craniomandibular disorders. The obtained results were as follows; 1. The mean values of the Helkimo's Anamnestic Index(AI), Clinical Dysfunction Index(HDI), Fricton's Palpation Index(PI), Dysfunction Index(DI), and Craniomandibular Index(CMI) were 0.35, 0.71, 0.03, 0.05, and 0.04 in male subjects. 2. The mean values of the Helkimo's Anamnestic Index(AI), Clinical Dysfunction Index(HDI), Fricton's Palpation Index(PT), Dysfunction Index(DI), and Fricton's Craniomandibular Index(CMI) were 0.42, 0.72, 0.02, 0.04, and 0.03 in female subjects. 3. There was no statistically significant difference between male and female subjects in each parameter. 4. The palpation index(PI) observed in Korean Young Population was lower than that in American population.

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A Study on the Development of Evaluation Method for the Output Characteristics of Welding Machine by 6$\sigma$ (6$\sigma$에 의한 용접기 출력특성의 평가기법 개발에 관한 연구)

  • 조상명;윤훈성
    • Journal of Welding and Joining
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    • v.21 no.6
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    • pp.26-32
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    • 2003
  • Arc welding process has indicated that it suffers from many flaws. It's because requirement of products is diverse and factors which affects the quality is also various. Therefore, in order to stabilize the welding process, it is important to choose a proper welding machine for the each process, and to evaluate the welding process capability of each machine. In this study, rational and simple index to evaluate the welding machine was set the coefficient of resistance variation through the arc stability examination such as spatter generation weight and bead configuration uniformity etc. And the method to evaluate the process capability index was developed by application of 6$\sigma$.

DEVELOPMENT OF A SOUND QUALITY INDEX FOR THE EVALUATION OF BOOMING NOISE OF A PASSENGER CAR BASED ON REGRESSIVE CORRELATION

  • LEE J. K.;PARK Y. W.;CHAI J. B.;JANG H. K.
    • International Journal of Automotive Technology
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    • v.6 no.4
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    • pp.367-374
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    • 2005
  • This paper proposes a sound quality index to evaluate the vehicle interior noise. The index was developed using a correlation analysis of an objective measurement and a subjective evaluation data. First, the objective set of measurements was obtained at two specified driving conditions. One is from a wide-open test condition and the other is from a constant-speed test condition. At the same time, subjective evaluation was carried out using a score of ten scale where 17 test engineers participated in the experiment. The correlation analysis between the psycho-acoustic parameters derived from the objective measurement and the subjective evaluation was performed. The most critical factors at both test conditions were determined, and the corresponding equations for the sound quality were obtained from the multiple factor regression method. Finally, a comparative work between previous index and present index was performed to validate the effectiveness of the proposed index.

Performance Index-Based Evaluation of Quadruped RoboticWalking Configuration

  • Kim, Byoung-Ho
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.10 no.4
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    • pp.308-313
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    • 2010
  • This paper presents a performance index-based evaluation for a better quadruped robotic walking configuration. For this purpose, we propose a balance-based performance index that enables to evaluate the walk configuration of quadruped robots in terms of balance. In order to show the effectiveness the proposed performance index, we consider some types of walking configurations for a quadruped robotic walking and analyze the trend of the proposed performance index in those quadrupedal walking. Through the simulation study, it is shown that an effective walk configuration for a quadrupedal walking can be planned by adopting the proposed performance index.

The Effects of Sobieum on Decrease of Body Mass Index (BMI) and Obesity Index of Obese Children (소비음(消肥飮)이 비만아의 체질량지수와 비만도 감소에 미치는 영향)

  • Lee, Dong-Hyung;Kim, Deog-Gon
    • The Journal of Pediatrics of Korean Medicine
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    • v.23 no.1
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    • pp.195-203
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    • 2009
  • Objectives The purpose of this study is to evaluate the effects of Sobieum on decrease of BMI and obesity index of obese children. Methods 66 children (33 boys, 33 girls) were involved in this study. We measured height and weight for each time their visit, and calculated BMI and obesity index. Results After medication, BMI level and obesity index were significantly reduced (p<0.001). Conclusions We speculate that Sobieum is effective in the treatment of childhood obesity, and further controlled studies are needed with clinical cases of hematological evaluation.

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A Preliminary Study on Voice Symptoms and Korean Voice Handicap Index of Speech Language Pathologists (언어치료사의 음성증상 및 한국어판 음성장애지수에 대한 예비연구)

  • Song, Yun-Kyung;Pyo, Hwa-Young
    • Phonetics and Speech Sciences
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    • v.2 no.2
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    • pp.123-133
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    • 2010
  • Speech language pathologists depend on their voice for livelihood and are high risk group of voice disorders. But there are few studies on their prevalence of voice symptoms and voice handicap index. This study aimed to evaluate prevalence of voice symptoms and Korean voice handicap index with 86 speech language pathologists and 90 individuals employed in other occupations. We analyzed self-reported voice symptoms and voice handicap index using a questionnaire for this study. The results showed that the prevalence of voice symptoms of speech language pathologists is 60.5% and voice handicap index scores of speech language pathologists group are significantly higher than those of control group in physical and total score. And we found that alcohol history was a risk factor for voice symptoms. These findings indicate that special vocal hygiene program for speech language pathologists and follow up studies for comparisons of prevalence of voice symptoms and voice handicap index with other professional voice users are necessary.

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Hydrometeorological Characteristics and The Spatial Distribution of Agricultural Droughts (농업가뭄의 수문기상학적 특성 및 공간적 분포에 관한 연구)

  • Jang, Jung seok
    • Journal of The Korean Society of Agricultural Engineers
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    • v.61 no.2
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    • pp.105-115
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    • 2019
  • For 159 administrative areas, SPI(Standardized Precipitation Index), ARDI(Agricultural Reservoir Drought Index) and ARDIs(Agricultural Reservoir Drought Index Simulated) were developed and applied to analyze the characteristics of agricultural drought index and agricultural droughts. In order to identify hydrometeorological characteristics of agricultural droughts, SPI, ARDI and ARDIs were calculated nationwide, and the applicability was compared and examined. SPI and ARDI showed significant differences in time and depth of drought in both spatial and temporal. ARDI and ARDIs showed similar tendency of change, and ARDIs were considered to be more representative of agricultural drought characteristics. The results of this study suggest that agricultural drought is a problem to be solved in the medium and long term rather than short term due to various forms of development, complexity of development, and difficulty in forecasting. Therefore, it is concluded that a preliminary and systematic approach is needed in consideration of meteorological, hydrological and hydrometeorological characteristics rather than a fragmentary approach, and that an agricultural drought index is needed to quantitatively evaluate agricultural drought.

Analysis of Water Quality Factors for Benthic Macroinvertebrates Streambed Index (BMSI) Improvement in Korea (한국의 저서동물 하천하상지수(BMSI) 개선을 위한 수질요인 분석)

  • Kim, Dong hee;Kong, Dongsoo
    • Journal of Korean Society on Water Environment
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    • v.35 no.6
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    • pp.539-549
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    • 2019
  • In 2016, Benthic Macroinvertebrates Streambed Index (BMSI) was proposed as an index to evaluate streams as benthic macroinvertebrate depending on the substrate type of streambed. However, orignal BMSI were selected without consideration of water quality. Analyzes without water quality do not constitute biological indices based solely on the substrate type of streambed. Therefore, in this study, the indicator value was improvement in consideration of water quality, and the distribution characteristics of benthic macroinvertebrates according to the substrate type of streambed were analyzed under relatively equal water quality conditions. We surveyed 20,155 sampling units in Korea from 2008 to 2018, and we re-estimated each lithophility of 191 taxa. As a result of estimating the streambed of each newly lithophilic value classification group considering the water quality, it was different from the original lithophilic value. Representative integer lithophilic values were newly calculated from 126 taxa among the 191 index taxa used in the analysis. The correlation between new constructed BMSI and community structure was compared and analyzed. It showed extreamely significance (p<0.001) in the dominance index, diversity index, abundance index, and evenness index of the community structure. Diversity index, abundance index, and evenness index showed positive correlation, and dominance index showed negative correlation. The correlation coefficient (r) was the highest in the richness index of about 0.664.