多點 피토관 流量計의 流量係數 測定에 관한 실험적 연구

임재명,윤복현 木浦大學校 工業技術硏究所 2000 工業技術硏究誌 Vol.10 No.-

The performance of multi-point Pitot tube flow-meter with diamond shape depending on the combination of upstream double elbows was experimentally studied. Actual flow-rates were measured by using ISA 1932 nozzles which are all standard flow-meters. Based on the measured flow-rates the flow coefficients of the multi-point flow-meter could be obtained. The flow coefficients calculated with all the front four holes open agree very well with those calculated by means of the average coefficient for the all holes. Furthermore, the flow coefficients were quite indifferent to Reynolds number variation for the region of ReD> 5.5×104. It is mostly due to the fact that the straightener installed upstream makes the flow more stable and straight than the case without the straightener ahead of the test section.

국내 생산 재생골재의 품질수준 평가

전명훈,이세현,이성복,이도헌 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

Recycling waste concrete is very important for environmental pollution prevention, overcome aggregates shortage and effective use of resource. The examples of using recycled aggregates such as ground backfill, road construction, concrete production. But, aggregate for structural concrete requires high degree of quality. We investigated the quality of domestic recycled aggregates in order to activate the use of recycled aggregates to seek the technologically, politically supplement factors to contribute to the effective use of recycled aggregates which has ever been a national problem, and which would solve the aggregates shortage.

多點 피토관 流量計 周圍의 流動特性에 관한 실험적 연구

임재명,윤복현 木浦大學校 工業技術硏究所 2000 工業技術硏究誌 Vol.10 No.-

The flow characteristics passing a multi-point Pitot tube flow-meter with diamond shape were experimentally studied. ISA 1932 nozzles were used in order to measure average velocities in the pipe. A model of the same shape as the multi-point Pitot tube flow-meter with several holes perforated on its side was manufactured and tested to obtain pressure distributions around the test-piece. The combination of upstream double elbows varies the velocity profile and the position of maximum velocity and produces secondary flows and swirl. Especially, in case of 90˚ double elbows combination, swirl showed its maximum strength and anti-symmetric flow was also detected. The position of separation occurred at the same point all the time, in spite of various combinations of double elbows and for the entire range of Reynolds number tested in this study.

경연 대회를 통한 초ㆍ중고생의 창의력 신장 효과에 관한 연구

이희복,육근철,류해일,김현섭,김희수,박달원,유병환,김선효,김여상,서광수,변두원,서명석,배성효,박종석,심규철,이성희 공주대학교 과학교육연구소 2001 과학교육연구 Vol.32 No.1

미래 사회를 대비하기 위한 개인의 개성을 존중과 창의적인 능력을 지닌 인간을 양성을 목적으로 충청남도 지역의 초 ㆍ 중고등학생들을 대상으로 한 창의력 경연대회가 공주대학교 과학교육연구소에서 개최되었다. 충청남도 초 ㆍ중 ㆍ 고등학생들을 대상으로 실시한 창의력 경연대회는 창조적 아이디어를 내어 스스로 문제를 해결해 나갈 수 있는 교육 프로그램을 제공하는 좋은 기회였음이 확인되었으나, 일부의 팀에서만 참신하고 재미있는 아이디어들이 제안되었다. 여학생의 참가자 수가 상당히 증가하였으며, 대체적으로 입상권의 학생들의 상당 부분이 여학생이라는 것이 특이할만하다. 학년이 올라감에 따라서 창의적인 아이디어를 내는 양이나 질에 있어서 뒤떨어지는 것으로 분석되었으며, 토론 학습의 적응력이 미흡하고 발표력 및 청취력에 있어서도 떨어지는 것으로 나타났다. 따라서 중 ㆍ고등학교의 학교교육에서도 학생들에게 프로젝트형 탐구학습 프로그램의 적용은 물론 토론식 수습을 통한 학생들의 사고의 전환의 기회를 제공해야 할 것으로 사료된다. The creativity competition was held to foster the creativity of elementary and secondary school students in the Institute of Science Education, Kongju national University. It was found that the creativity competition effected on the improvement of inventing creative ideas and problem solving activities. But, only some competitors participated in semifinal and final contests, presented original and interesting ideas. More female students participated in competition than last year. More female participants were awarded a prize than males. Totally, participants were defective in discussion and communication, and presentation and listening ideas. Increasing grades correlated inversely with creativity and originality. There is need of inquiry project teaming programs and presenting opportunities of conversion of thinking by discussing instructions in school

組合回路에 對한 檢査性 測定法의 比較 硏究

김명선,김신택,민형복 成均館大學校 科學技術硏究所 1994 論文集 Vol.45 No.2

Fault coverage evaluated by fault simulators is accurate. However, fault simulation is not only memory consuming but also time consuming, and fault simulation time is propotional to, at least, square of circuit size. These limitations become more serious because of increased circuit densities. Recently, several algorithms for testability measures have been published. In this paper, three algorithms, STAFAN, COP, and PREDICT, are compared each other with respect to accuracy and execution time, in order to provide a useful guideline for those who plan to design a new digital circuit.

청소년의 가정생활환경이 의류 상표지향성에 미치는 영향 연구 : 16~24세 여성을 중심으로

서영복,이명희 誠信女子大學校 生活文化硏究所 2009 生活文化硏究 Vol.24 No.1

The purpose of this study is to investigate the effects of the value system and material environment on consumers' brand orientation of clothes, and to understand how brand orientation, value system at home, and the motive for selecting a brand name are interrelated. As research method, questionnaire surveys were conducted on 498 high school and college girls in Seoul. Variables for home environment included status aspiration, materialism and traditionalism. Brand orientation was assessed based on brand involvement and brand loyalty. Variables for brand-selection motive included the place of a store, impulsive buying, and eight clothing attributes. Consumer groups were classified into four groups based on brand orientation, using brand involvement and brand loyalty median values: highly involved and loyal, highly involved and disloyal, less involved and loyal, and uninterested. The highly involved and loyal group showed a high level of status aspiration and traditionalism, belonged to a higher social class and had higher-educated parents. They took brand fame into much consideration when buying clothes. Additionally, this group paid much attention to the quality, fashion trends and comfort of the clothes, had a high level of expenditure on clothing and shopped for clothes mostly at department stores. The uninterested group showed a low level of status aspiration and traditionalism, belonged to the middle social class, and had lower-educated parents. Also, they took less consideration of clothing attributes, spent less money on clothing and did their clothes shopping at traditional markets and wholesale stores. The variables with the most amount of influence on brand involvement were in the order of social class, age, traditionalism and status aspiration (R²=.083). The variables with the most amount of influence on brand loyalty were found to be in the order of social class, age, traditionalism and materialism (R²=.090). Therefore, the most important variables for the clothing brand orientation of young females were social class, age and traditionalism at home.

韓國 傳統住宅의 溫熱環境에 對한 硏究

尹在雄,金命福 효성여자대학교 새마을연구소 1988 새마을硏究論文集 Vol.8 No.-

팩시밀리의 主機板에 對한 技能的 試驗機의 設計 및 具現

김신택,이재훈,김명선,김한상,민형복 成均館大學校 科學技術硏究所 1992 論文集 Vol.43 No.2

본 연구는 팩시밀리의 주기판(main board)을 기능적으로 테스트하기 위해 구현한 FFTS(Functional Facsimile Test System)에 대한 기술이다. 본 연구의 목적은, 테스트시 수반되는 모든 작업을 자동화하고, 테스트 수행중 발생하는 여러가지 상태들을 자료화하는 것이다. 아울러 주기판에 대한 입출력 신호들의 종류와 그 특성들이 변경될 경우라도 소프트웨어의 수정만으로 그 것에 대처한 후 계속적으로 테스트를 수행할 수 있도록 한다. FFTS는 주기판에 접속되는 여러가지 장치들을 하드웨어적으로 에물레이션하며, 테스트용 전용언어, 그리고 그것에 대한 컴파일러를 포함한다. FFTS로 테스트를 수행하는 방법에는 대화식 모드(IAT)와 대화식 테스트에서 수행할 수 있는 모든 과정을 테스트용 언어로 저장한 후 그것을 반복하여 사용하는 배치 모드(Batch mode) 등이 있다. FFTS의 유용성을 실증하기 위해 여러 종류의 팩시밀리에 대하여 실험을 실시하였다. FFTS (Functional Facsimile Test System) is designed and implemented. It is possible to eliminate repeated test work and to analyze the data obtained through test. If the specification of the signals from/to main board of facsmile is changed, it is possible to cope with the change by modification of FFTS software. FFTS emulates the devices connected to the main board. FFTS is designed to test the main board either by using interactive(IAT) mode with graphic user interface or by using noninteractive(NIAT) mode with test command file which is coded manually or created from IAT mode. The operation of the FITS is verified for several types of main board of G3 class facsmiles.

Aspect Ratio of Nanosized Field Emitters for Optimized Emission Current

Myoung-Bok Lee 한국물리학회 2004 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.44 No.4

A special aspect ratio is for the rst time proposed from the peak behavior of the calculated emission current - eld for a specic range of tip height, radius, and surface workfunction. The presence of an optimized emission current was explained by considering a trade-o between an increase in emission area and a reduction in the eld enhancement factor, both of which depending on the tip radius. A detailed model calculation allowed us to empirically model a generalized optimized aspect ratio of sharp emitters depending on both the tip surface workfunction and the apparent eld. Thus, the proposed relation could be used as a guide for the design of optimized eld emitters.

日韓における個別の指導計畵と個別化敎育計畵作成に對する敎員の意識に關する比較硏究

최명복 ( Myoung Bok Choi ),( Hideo Miyaki ),( Ochiai Toshiro ) 한국초등특수교육학회 2010 초등특수교육연구 Vol.12 No.1

障害のある子どもの敎育は, それぞれのニ―ズにあった敎育內容を實施し, その成果を繼續するため, 他の關係機關と連携協力していくことが必要である。しかし, 必ずしも敎員の理解や意識が十分ではなく, その改善に向けて, 日韓の特別支援學級の擔任が個別の指導計畵作成についてどのように考えているかを明らかにし, 兩國においてどのような違いがあるかを檢討した。その結果, 兩國の特別支援學級の擔任は, 個別の指導計畵の作成方法などについては旣に知っており, 個別の指導計畵の作成を職務の重要な部分, 最優先的な課題として考えていることが推察された。その一方, 兩國の特別支援學級の擔任は, 仕事に追われ, 余裕がない現狀と, 個別の指導計畵作成に對して義務的な職務として考えていることや, 不安感を抱えていることなども推察された。また, 日本の敎員は韓國の敎員より, 個別の指導計畵作成を優先的に考え, かつその內容などを旣に知っていると捉えていると同時に, 義務感も感じていた。他方, 韓國の敎員は日本の敎員より, 多忙感を感じていることが明らかになった。 Education for children with special educational needs should be implemented based on individual needs and to build sustainable educational development and collaborations with related organizations. However, teachers` understandings and attitudes for Individualized Instruction /Education plans (then after IEP) are not enough. This study was implemented to clarify and analyze attitudes of Japanese special class teachers and Korean ones about IEPs. Based on the results of this study, it can be said that special class teachers of both countries already knew the methodology how to make IEPs and recognized them as the important part and a matter of the highest priority. On the other hands, it can say that the teachers of both countries are very busy for their jobs and no composure. Because, they think, composing IEP should be their duties and fill anxiety by it. Furthermore, comparing with Korean teachers, Japanese teachers think themselves more strongly that composing IEP is in the highest priority, stronger sense of duty and knowledge about IEP. Korean teachers fill stronger pressure of business.