• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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• 제15권10호
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• pp.791-795
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• 2009

네트워크 환경에서 인체형 캐릭터의 모델링과 애니메이션 데이터의 호환성을 위해서는 특정 그래픽스 도구나 프로그램에 의존하지 않는 시스템 독립적인 인체 데이터 형식이 필요하다. 이를 위한 목적으로 Web3D 컨소시엄과 ISO/IEC SC24 WG6가 공동으로 제정한 국제표준 ISO/IEC 19774 H-Anim은 관절이 있는 인체형 데이터 구조를 정의하며 모션 생성에 필요한 계층 구조를 정의하고 있으나 모션 생성 방법을 위한 데이터에 대해서는 정의하고 있지 않다. 본 논문은 응용 프로그램간의 모션 데이터의 호환성과 독립성을 목적으로 하며, H-Anim 캐릭터의 모션 데이터 규격 정의 및 활용을 위한 모션 리타겟팅 구현의 단순화 방법을 기술한다. 그리고, 일반 그래픽스 도구에 의해 제작한 임의의 3차원 캐릭터와, 이 모델과는 관련이 없이 생성된 임의의 모션 캡처 데이터를 이용하여 H-Anim 구조의 캐릭터 애니메이션을 생성하는 방법과 실험 결과를 설명한다.

• 대한가정학회지
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• 제25권3호
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• pp.15-26
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• 1987

The purpose of this study was to develop the pattern drafting method which would be suitable to their physical characteristics for the fatty body of 40∼55 aged Korean women who are more than 1.5 Rohrer's Index and 90㎝ bust girth. The study was composed as follows; 1. Body measurement and statistical analysis: One hundred and thirty women were measured on 29 items. Thirty-four items including 29 measured items and 5 calcutated items were analyzed statistically. 1) Mean, standard deviation, variance, maximum, minimum, range were computed. 2) Correlation coefficients between each items were computed. 2. Development of new bodice pattern drafting method: Measurement items necessary to draft new bodice pattern were bust girth, center back waist length, shoulder width, back width, chest and neck base girth. The new pattern was examined through three wearing tests for completion. 3. Evaluation of the new pattern drafting method: The new pattern was objectively evaluated by the sensory test. The sensory evaluation was applied to evaluate the new pattern for the fatty body women by comparint it with the conventional patterns. The results of sensory tests of the new pattern are as follows: 1) The composite reliability coefficient is 0.7698, and the reliability of sensory test shows high. 2) According to a statistical analysis of the result of the 23 items on the questionaire, all the items showed significant differences(α 0.01) between the two, with the new pattern having higher scores. The new pattern is better conventional pattern as the average mark of the former is 3.901 but that of latter is 2.926. The new pattern drafting method proved to be superior to the conventional one especially in the fitness at the center front neck point, shoulder point, side line, armscye depth, position of bust point, chest width line, under arm dart and the shoulder line.

• 한국인터넷방송통신학회논문지
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• 제20권2호
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• pp.277-282
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• 2020

전 세계적으로 추진 중인 단위영역별 중·대형 마이크로그리드(Microgrid) 시스템 구축은 전력망의 효율적 운영 및 전력 비상사태에 대비한 독립적인 운전이 가능한 형태로 점차 발전, 확대되고 있으며, 다양한 형태의 새로운 형태의 민간 주도형 전력산업을 발전시키고 있다. 따라서 국내 전력산업의 발전을 위해서는 관련 국제 표준화의 진행 현황 및 기술을 분석하고, 국내 실정에 맞는 표준제정과 새롭게 제정의 필요성이 있는 사항에 대해 국내 표준(안)의 국제표준화가 시급한 실정이다. 캠퍼스 마이크로그리드는 통합 에너지 관리 시스템(EMS), 분산전원(DG), 에너지저장 장치(ESS), 수요반응(DR), 전기자동차(EV) 등 스마트그리드 요소기술들을 대학 캠퍼스에 통합된 형태로 구현하여 에너지 사용을 저감하고 에너지 사용효율과 에너지자립도를 향상하는 시스템으로 이러한 시스템의 상호운용성 및 신뢰성 확보를 위한 표준화 정립에 대해 살펴본다.

• 한국의류학회지
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• 제35권8호
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• pp.933-945
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• 2011

This research proposes a pattern design method for 24 pleated skirts in order to develop an automatic draft program for pleated skirts that will enhance fit and enable mass production. The research method and results are outlined as follow. 1. Three-dimensional body measurements were conducted on 30 randomly selected women in their 20s. By using 34 body measurement items and 6 types of calculations among the items, the items required in the designing of an original pleated skirt were extracted. They were then interpreted through correlation analysis, variance analysis, a t-test, linear regression analysis and multiple regression analysis. 2. An extra amount was added to the waist measurement and external capsule measurement according to the number of times the pleats coincided and the thickness of the fabric by the degree of polymerization of the horizontal cross section (the test of this research: 0.518mm). The extra amount of waist measurement was 3.6cm while the hip measurement was 4.3cm larger than the hip measurement combined with the external capsule measurement and the extra amount. 3. Based on the ${\pm}$standard deviation/2 as the average of the difference between the external capsule measurement and waist measurement, the subjects were classified into 3 somatotypes. Somatotype 1 presented an average total length of waist darts of 23.6cm while that of somatotype 2 was 26.2cm and that of somatotype 3 was 30.2cm. It has been confirmed that there is a significant difference among somatotypes in the total length of waist darts from the front center to the front side and the total length of waist darts from the side to the back center in terms of the average amount of waist darts for every 12 parts on the WL.

• Preventive Nutrition and Food Science
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• 제9권2호
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• pp.190-193
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• 2004

This review was conducted to evaluate the 'Korean Food Composition Table' and establish it as an internationally accepted database by examining its contents and evolution over time. The food composition table has been published by National Rural Living Science Institute, every 5 years, listing the nutrient content for each food, as both the raw agricultural product and processed foods, since the 1$^{st}$ edition in 1979 by RDA (Rural Development Administration). This is the basic data applied to the evaluation of the nutritional value of foods in Korea. The data is used as a useful tool in many fields, not only for the establishment of the National Food Supply Plan but also for nutritional research, the draft of National Food Policy, and in clinical and epidemiological research. The database is also utilized by food service providers and food processors, etc. Consumers and the international society have been interested in the quality and safety of foods and raw agricultural products. As these data expand in volume, the type of foods included in the composition table is expanded to cover new additions for the convenience of users of the 'Nutrient Data Base' as judged by the publishers. The form of these reports varies, according to the current information, from a simple booklet to CD-ROM and to the Web service. We expect to continue to make improvements in the National Standard Table for food composition through expanding both the quantity and quality of data in an orderly manner. This effort can help food composition data to be comprehensively developed systematically and gradually at the national level.l.

• 한국가시화정보학회지
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• 제17권3호
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• pp.24-31
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• 2019

Recently, an air-lift bio-reactor operated by micro bubbles has been utilized to product hydrogen fuel. To enhance the performance, characteristics of hydrodynamics inside the bio-reactor were analyzed using a numerical simulation for two-phase flow. An Eulerian model was employed for both of liquid and gas phases. The standard k-ε model was used for turbulence induced by micro bubbles. A Population Balance Model was employed to consider size distribution of bubbles. A hollow cylinder was introduced at the center of the reactor to reduce a dead area which disturbs circulation of CO bubbles. An appropriate diameter of the draft tube and hollow cylinder were optimized for better performance of the bio-reactor. The optimum model could be obtained when the cross-sectional area ratio of the hollow cylinder to the reactor, and the width ratio of the riser to the downcomer approached 0.4 and 3.5, respectively. Consequently, it is expected that the optimum model could enhance the performance of the bio-reactor with the homogeneous distribution and higher density of CO, and more effective mixing.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제6권5호
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• pp.1303-1315
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• 2012

In the draft of the IEEE 802.11s standard, a tree topology is established by the proactive tree-building mode of the Hybrid Wireless Mesh Protocol (HWMP). It is used for cases in which the root station (e.g., gateway) is an end point of the majority of the data connections. In the tree topology, the root or central stations (e.g., parent stations) are connected to the other stations (e.g., leaves) that are one level lower than the central station. Such mesh stations are likely to suffer heavily from contention in bottleneck links when the network has a high traffic load. Moreover, the dependence of the network on such stations is a point of vulnerability. A failure of the central station (e.g., a crash or simply going into sleep mode to save energy) can cripple the whole network in the tree topology. This causes performance degradation for end-to-end transmissions. In a connected mesh topology where the stations having two or more radio links between them are connected in such a way that if a failure subsists in any of the links, the other link could provide the redundancy to the network. We propose a scheme to utilize this characteristic by organizing the network into concentric tiers around the root mesh station. The tier structure facilitates path recovery and congestion control. The resulting mode is referred to as Tier-based Proactive Path Selection Mode (TPPSM). The performance of TPPSM is compared with the proactive tree mode of HWMP. Simulation results show that TPPSM has better performance.

• 한국산학기술학회논문지
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• 제9권2호
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• pp.455-461
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• 2008

EDCA (Enhanced Distributed Channel Access)는 무선 로컬 네트워크에서 QoS를 지원하기 위해 IEEE 802.11e 표준에서 채택한 채널 접근 방법이다. EDCA는 트래픽을 몇 개의 범주로 분류하고 각 범주마다 채널 접근 매개변수 값을 달리 갖도록 하여 서비스 차등화를 제공한다. 본 논문에서는 비실시간 트래픽에 대해서는 처리량(throughput)을 최대화하면서 실시간 트래픽에 대해서는 지연 및 처리량 제약조건을 만족시키도록 EDCA 매개변수를 트래픽 환경에 동적으로 적응시키는 기법을 제안한다. 이를 위해, 먼저 EDCA 매개 변수 값의 조합이 갖는 공간을 효율적으로 탐색하는 설계 단계 알고리즘을 개발한다. 그리고 이 알고리즘을 이용하여 각 예상되는 트래픽 환경에 대해 지연-처리량 이득/손실에 대한 파레토 커브 (Pareto curve)를 유도한다. 이 파레토 데이터베이스는 트래픽 환경 및 관리 정책에 따라, 최적으로 매개변수를 조절하는데 사용될 수 있다. 시뮬레이션에 따르면, 표준에서 제시된 매개변수 값을 이용하는 경우에 비해서, 제안된 방법이 실시간 트래픽의 지연 및 처리량 보장에 탁월한 성능을 보이며 비실시간 트래픽의 처리량을 평균적으로 12% 증가시키는 것으로 나타났다.

• 보건행정학회지
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• 제25권2호
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• pp.107-117
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• 2015

Background: The purpose of this study is to analyze the cost for the denture treatment in accordance with the government's plan to expand the National Health Insurance coverage for dental prothesis from July 1, 2012. Methods: We developed the draft of classification of the treatment activities based on the existing researches and expert's review and finalized the standard procedures through confirming by Korean Dental Association. We also made the list of input at each stage of treatments. We conducted survey of 100 dental clinics via post from April 4 to May 20 in 2011 and 37 clinics took part in the survey. The unit of cost calculation is the process from the first visit for denture treatment to setting of denture and adjustment. The manufacturing process performed by dental technician was not included in the cost analysis. Results: The process for the complete denture treatment was classified with 10 stages. The partial denture treatment was classified with 8 stages. The treatment time per each denture is about 5.6 hours for complete dentures and about 6.6 hours for partial dentures. The treatment cost were from 591,108 won to 643,913 won for complete denture and from 670,219 won to 738,840 won for partial denture in 2011, depending on the location, type of the clinics and the types of physician's income. Conclusion: This study shows the example of cost analysis for the treatment to set the fee schedule. Measures to get representative and accurate information need to be made.

• 대한가정학회지
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• 제39권8호
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• pp.137-154
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• 2001

This study was made to draft the tight fitting bodice pattern which horizontal and perpendicular stands are to be lightly set, with the consideration of characteristics of body shape in design of clothes. Measurement of body was conducted on 53 women in twenties, and observation was made on surface development pattern by adhesive tape addition method and gypsum method on three standard objects. In the study, bodice pattern was completed by using already made Somato- measurer, compared with existing bodice pattern, and the results are as follows. The result of the correlation analysis by body measurement shows that chest circumference has a relation to B$.$P-front neck point, side neck point, shoulder point, front interscye breadth point, and the item in spine scapulae point has relation to the item of back neck line, and front & back horizontal values. The degree of shoulder slant, width of armhole and of its depth, the amount of breast, back space, back length were shown to be directly measured from the body. In surface development pattern, tight-fit bodice pattern necessary to the breast volume and back space were shown to be investigated and these volume have to be given in setting up basic line for clothes design together with body measurement value. The result of sensory evaluation for appearance test on fitness shows higher value of research bodice including line of shoulder line, front and back interscye breadth, chest circumference, waist circumference, armhole circumference and of its depth, compared with the research bodice in most items. The result of this study is seen showing high effectiveness for the basic data to design the ready-made dress of high sensitivity of high value added tat.