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나미향 ( Mi Hyang Na ),김미선 ( Mi Sun Kim ),정혜순 ( Heh Soon Jung ) 한국의류산업학회 2004 한국의류산업학회지 Vol.6 No.5
The purpose of this study was to develope of brassiere pattern for middle school students (15 ages T 3). In order to design a brassiere pattern, the body surface shell was used as the basic pattern. The foundation pattern and the four-piece brassiere pattern with wire were designed and sewed. The results of this study can be summarized as follows. 1. The foundation pattern of the size 75A was proved proper for the body by the wearing tests. Each angle and length of the parts on the base line of the breasts played an important role on setting the pattern. 2. As based on the body surface shell extracted from a plaster mold, the cups of brassiere pattern were applied to the body surface shell, and full side stretch -wings were applied to 8% reduced body size. 3. As the result of the wearing test, the excellence of the experimental brassiere was recognized objectively, with high marks in all the items of clothing compensation, body motion, clothing pressure and breasts growth. The experimental brassiere was covering the whole breasts to cope with change according to breasts growth. It was designed to support the breasts firmly, not to press the middle part of them. Simultaneously, this has the advantages that satisfy a characteristic of a figure and the purpose of putting it on.
경남 지역아동센터 교사의 구강보건교육경험이 아동의 집단잇솔질에 미치는 영향
나미향 ( Mi Hyang Na ) 한국치위생학회 2011 한국치위생학회지 Vol.11 No.1
Objectives : Children who are users of local children`s centers are mostly in the lower income brackets or raised by single parents or grandparents. Their parents are usually careless about them, or they are placed in tough environments. Specifically, they are unlikely to be taught at home to brush their teeth on a regular basis. The purpose of this study was to examine the oral health education experiences of teachers at local children`s centers and the reality of oral health care provided by them to children, and to pave the way for the development of collaborative oral health education programs by local children`s centers and local communities. Methods : The subjects in this study were teachers who worked at 158 local children`s centers located in Gyeongnam Province. Each teacher was asked to fill out the given a questionnaire at the centers. The survey was conducted by phone or in person from February 26 to April 1, 2009. The collected data were analyzed with SPSS 15.0 program, and statistical data on frequency and percentage were acquired to find out the general characteristics of the teachers. And crosstabulation was utilized to look for connections between oral health education experiences and actual oral health care. Results : At the 158 local children`s centers, 21 teachers had ever learned about oral health education to provide children with that, and 137 teachers hadn`t. The local children`s centers that the former worked for had more interest in dental caries, and those centers had children do toothbrushing more than the other centers at which the latter served. Conclusions : It seems that local children`s centers and local communities should make concerted efforts to develop joint education programs.
HOL 블럭킹 회피를 위한 상호연결망 스위칭 소자의 설계 및 성능 평가
나미향(Mi-Hyang Na),서경희(Kyung-Hee Seo),김성천(Sung-Chun Kim) 한국정보과학회 1998 정보과학회논문지 : 시스템 및 이론 Vol.25 No.4
대규모 시스템에 적합한 단일 경로를 갖는 다단계 상호 연결망은 적은 비용과 간단한 경로배정 알고리즘으로 높은 성능을 얻을 수 있지만, 중복 경로가 존재하여 패킷간에 충돌이 발생한다. 이 때, 선두 패킷의 블럭킹으로 인해 뒤따르는 패킷이 지연되는 HOL 블럭킹 현상이 발생하고, 망 지연의 증가와 망 처리율 감소로 시스템 성능에 제약이 따른다. 본 논문에서, HOL 블럭킹 현상을 줄이기 위한 기존의 LCR 기법에서 증가하던 스테이지 사이클을 고정시키는 두 가지 확장된 LCR 기법, LCR1과 LCR2를 제안 한다. LCR1은 버퍼내의 선두 패킷이 블럭킹되었을 때 다음 사이클에는 선두 패킷을 뒤따르는 패킷이 전송을 시도하도록 함으로써 패킷의 전송량을 증가시킨다. LCR2는 패킷의 라우팅 태그를 병렬적으로 비교하여 패킷의 전송량을 최대화한다. 따라서 개선된 LCR 기법은 고정된 스테이지 사이클을 유지하면서 HOL블럭킹을 감소시킴으로써 망 지연을 감소시키며, 망 처리율을 증가시킨다. 시뮬레이션 결과를 통해서 개선된 LCR 기법이 망 지연과 망 처리율 면에서 기존의 다른 기법들보다 우수함을 보인다. Multistage Interconnection Networks (MINs) have been widely used for large parallel computer systems. They increase the system performance with low costs and simple routing algorithms. However, most single-path MINs have duplicate paths and the output conflict is inevitable if two or more packets go to the same output port. This case causes a phenomenon called head of line (HOL) blocking which limits the maximum throughput of a system. In this paper, we propose two enhanced LCR schemes, LCR1 and LCR2, to overcome the HOL blocking and fix the stage cycle that is increased in LCR scheme. When the HOL packet is blocked in LCR1, the following packet of the queue is offered for the transmission at the next stage cycle. LCR2 compares the routing tags in parallel to maximize the number of the transmitted packets. Therefore, enhanced LCR schemes that maintain the fixed stage cycle decrease the latency and increase the system throughput by reducing the HOL blocking. Simulation results indicate that LCR1 and LCR2 perform more efficiently than other schemes in terms of latency and throughput.
개선된 lCR기법이 적용된 스위칭 소자의 설계 및 성능 평가
나미향(Mi-Hyang Na),김성천(Sung-Chun Kim) 한국정보과학회 1997 한국정보과학회 학술발표논문집 Vol.24 No.1A
다단계 상호연결망은 비교적 적은 비용과 간단한 경로 배정 알고리즘으로 높은 성능을 얻을 수 있어 대규모 시스템의 상호연결망으로 적절하지만 대부분의 단일 경로 다단계 상호연결망에서 존재하는 중복 경로로 인해 HOL 블럭킹 현상이 발생한다. 이러한 HOL 블록킹은 HOL 패킷의 블럭킹으로 인해 뒤따르는 패킷이 지연되는 현상으로 망 지연의 증가와 망 처리율을 감소시켜 결과적으로 시스템 성능에 제약이 따른다. 본 논문에서는 LCR 기법의 변형된 형태로 스테이지 사이클을 고정시키는 두 가지 기법을 제안한다. 첫 번째 기법은 패킷 전송 시도를 round-robin 방식으로 수행하는 것이고, 두 번째 기법은 병렬적으로 패킷의 라우팅 태그를 비교하여 패킷 전송을 최대화하는 것이다. 이를 통해 고정된 스테이지 사이클을 유지하면서 HOL 블럭킹을 감소시켜 전제적인 시스템의 성능 향상을 얻을 수 있었다. 성능 평가를 통해 이와 같은 성능 향상을 보이고, 제안된 두가지 방법이 적용된 스위칭 소자를 설계하고자 한다.