• 한국마린엔지니어링학회:학술대회논문집
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• 한국마린엔지니어링학회 2005년도 전기학술대회논문집
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• pp.239-245
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• 2005

The reduction of heat transfer rate to the stored liquid hydrogen from outside condition is extremely important to keep the liquid hydrogen longer. In this paper the highly efficient support system for the liquid hydrogen storage vessel was newly developed and analysed. The support system was composed of a spherical ball in the center of supporter to reduce the heat transfer area, with its above and below supporting blocks which are the SUS and PTFE blocks inserted in the SUS tube. The heat transfer rate and temperature distribution of the support system were evaluated by FLUENT, and the thermal stress and strain were estimated by ANSYS software. The results showed that the heat transfer rate from outer vessel to inner one was extremely decreased compared with the common method which is simply SUS tubes inserted between inner and outer tanks. The thermal stress and strain were obtained well below the limited values. As a result, it was the most efficient support system of storage vessel for liquid hydrogen and most cryogenic fluids.

• 한국농촌건축학회논문집
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• 제10권3호
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• pp.43-50
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• 2008

This research is arranged that process and progress facts of 'recreating cultural and traditional village' by the inhabitants participation that in the process during devised a planning of Chungju Mokge village the beginning in 2007. Also it is an investigation that process 'recreating cultural and traditional village' by the themselves through consideration and volition of inhabitants since the beginning stage to devised planning. The result of study are following; First, the inhabitants training inspired knowledge for this project and opened the eyes that themselves can sea it. According to it be foundation that inhabitants to bring their interest and participation of project in progress process. Second, The project were able to maintain transparency of public finance that by common and open of all cooperation process of inhabitants, administration supporter and specialist. And this is an important role about bring positive participation of inhabitants. Finally, the project 'recreating cultural and traditional village' promotion with support of 'Ministry of Culture, Sports and tourism' however this project existing the limits of the budget supporting. The limits are bigger than other rural projects.

• 한국정밀공학회지
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• 제34권4호
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• pp.287-292
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• 2017

A gas turbine is the main equipment used in a combined heat and power plant. It generates a high sound pressure noise level. To reduce the noise level, an enclosure is installed around the turbine. The sound insulation performance of the enclosure affects the amount of external noise reduction. In this study, a sound transmission loss analysis is performed using the boundary element method to predict sound insulation performance according to the numbers and shapes of the supporter. Radiated noise analysis is also performed for the main external points of the enclosure using ray-acoustics. The results of these analyses are presented and a design plan is proposed that reduces the sound pressure noise level of the enclosure.

• 한국재료학회:학술대회논문집
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• 한국재료학회 2012년도 춘계학술발표대회
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• pp.96.2-96.2
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• 2012

고체산화물연료전지(SOFC) cell은 cathode, electrolyte 및 cathode층으로 구성되어져 있는데, 이 cell의 적층은 EVD, CVD, sputtering등의 기상공정과 screen printing, tape casting, dip coating등의 습식 공정으로 제조한다. 적층 공정의 경우 supports의 크기와 형태에 따라 적용에 어려움이 있다. 따라서 본 연구에서는 적층공정의 문제점을 해결코자 전사지를 제조하여 평관형 anode supports 위에 적층하여 cell을 제조하였다. 전사지를 이용한 적층방법은 매우 간단하고 두께와 형상제어가 쉽게 가능하였다. 본 연구를 상세히 언급하면 평관형 anode 지지체를 압출법을 통해 제작하였고, 반소된 지지체 위에 anode function layer와 electrolyte(YSZ)층을 형성한 후 $1400^{\circ}C$ 동시 소결하여 치밀한 전해질 층을 형성하였다. 그 후 cthode층을 형성한 후, $1200^{\circ}C$에서 2시간 소결하여 porous한 전극층을 형성하여 cell을 제작하였다. 그 후 Anode supporter위에 전사지를 이용하여 적층한 경우 cell 소결정도를 SEM으로 관찰하였고, 전기화학특성으로는 출력과 분극저항을 측정하였다. 이를 통해 새로운 구성소재 증착방법 즉 전사지를 이용하는 방법을 개발하였다.

• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 2002년도 춘계학술대회 논문집
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• pp.1-6
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• 2002

본 연구는 대중교통 수단인 버스를 이용하는 교통약자인 휠체어 장애인의 접근을 돕는 휠체어리프트 개발을 위하여 안전을 고려한 유압시스템과 제어장치를 제작하기 위한 설계기술에 대하여 논하고자 한다. 현대는 고령화시대에 진입하면서 노약자와 장애인의 이동권과 접근권이 문제로 대두되고 있다. 본 연구에서는 기존 전동휠체어장애인과 보호자를 버스에 탑승할수 있는 접근성을 향상하는데 중요한 역할을 하는 리프트를 제작하는 과정에서 발생되는 안정성과 편리성을 중심으로 리프트를 설계 제작하고자 한다. 이 설계기술은 노약자 및 장애인의 이동권과 접근권을 향상시킬 수 있는 전동휠체어리프트의 대량생산체제를 확보하기 위한 중요한 기초자료가 됨으로써 동 제품의 안전도와 정밀도 품질보증 확보에 큰 기여를 하게된다.

• 한국산업정보학회논문지
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• 제21권1호
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• pp.51-59
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• 2016

방송 기술의 발전은 기존의 아날로그 방송을 디지털 방송으로 전환시켰고, 그 결과 다수의 프로그램을 다중화(Multiplexing)하여 하나의 스트림(Stream) 으로 송출하는 것이 가능해짐에 따라 아날로그 방식으로 방송할 때보다 채널 수가 많이 늘어나게 되었다. 다채널 시청 환경에서 시청자가 원하는 프로그램을 찾을 수 있게 도와주는 역할을 하는 것이 EPG(Electronic Program Guide)이다. 기존의 지상파 위주의 방송에서 케이블 TV, 위성 방송, IP TV 서비스까지 지원되는 다매체 환경으로 방송기술의 발전이 급속히 변화하고 있는 상황에서는 제목, 장르, 날짜, WishList로 프로그램을 검색하는 기능을 갖는 기존의 EPG 시스템으로는 사용자에게 불편함을 제공한다. 따라서 본 논문에서는 PSIP (Program and System Information Protocol)의 정보 변경을 활용하여 프로그램의 선호도에 따라 원의 크기가 다르게 표현되고, 프로그램 상영 시간이 임박해짐에 따라 표시된 화면이 진동되는 등의 직관적인 판단이 가능한 새로운 형태의 사용자 맞춤형 EPG 시스템을 구현하였다.

• 한국인터넷방송통신학회논문지
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• 제17권2호
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• pp.33-38
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• 2017

본 연구는 현재 한국에서 가장 대중적인 인터넷 방송 Afreeca TV에서 나타나는 인기 채널에 대하여 탐구한다. 기술의 발전으로 인해 일반인이 장비를 통해 개인 방송을 할 수 있는 시대가 도래 하였으며, 이에 따른 다양한 학술적 논의가 태어나고 있다. 인터넷 방송은 기존의 미디어와는 다르게, 시청률의 개념은 존재하지 않으며. Afreeca TV는 특정 공식을 이용하여 인기 채널을 집계한다. 이러한 상황에서 본 연구는 Afreeca TV에서 나타나는 인기 채널을 1) 성별 2) 프로필 사진 3) 장르 4) 애청자 5) 팬클럽 6) 서포터 7) 방송시간 8) 누적 시청자의 방식으로 구분하여, 어떠한 특징이 있는지 살펴보도록 한다. 더 나아가, 인터넷 방송의 미래에 대해서 고찰한다.

• 가족자원경영과 정책
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• 제10권4호
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• pp.87-107
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• 2006

A study of 117 Korean immigrant women who had husband and(or) children in Hawaii found the relation between social networks and psychological well-being. Social networks composed supporters, support structure, and support contents. Psychological well-being examined family life satisfaction, family life stability, and women's psychological health. Results showed as followed. First, the choice of immigration place among Korean immigrant women and her family based on other family members and friends lived in there. Second, her supporters were family and relatives, Korean friends, foreign friends, religions, belonged organizations and groups, public agencies in Hawaii, and mass-media. The best supporters of them was family and relatives and they mostly provided mental health to Korean immigrant women. Family, Korean friends, foreign friends, and religions tended to support emotional assistance. Third, the level of psychological well-being was higher. Her level of psychological health was higher than the others. Fourth, the best predictors of psychological well-being were child existence, occupation, and immigration duration. Fifth, psychological well-being significantly distinguished different relations of supporters from support structure of social network. The number and support duration with foreign friends supporter and the support duration and the level of perceived useful support content highly related with psychological well-being.

• Child Health Nursing Research
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• 제24권3호
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• pp.274-286
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• 2018

Purpose: This study aimed to test the validity and reliability of the Korean version of the Families' Importance in Nursing Care-Nurses' Attitudes (FINC-NA) instrument developed by Saveman et al. Methods: The 222 pediatric nurses' data were collected from 13 hospitals in South Korea and were analyzed using descriptive statistics, exploratory factor analysis, the Pearson correlation coefficient, and the Cronbach's ${\alpha}$ in SPSS software. The AMOS program was used to conduct confirmatory factor analysis of construct validity. Results: Of the 26 initial items, 24 were ultimately selected after evaluating content validity, construct validity, and reliability. The following 6 factors were included in the Korean version of the Families' Importance in Nursing Care-Pediatric Nurses' Attitudes (KFINC-PNA): family as a 'conversational partner', 'participant in care', 'supporter for the nurse', 'burden', 'recipient of empowerment', and 'its own resource'. Conclusion: The KFINC-PNA was partially modified to explain differences in language and culture, but its validity and reliability were verified. Pediatric nurses' attitudes can be assessed using the KFINC-PNA, and adjustments to the care of hospitalized children and their families can be made based on these items. We recommend developing and verifying intervention methods that will improve family-centered care for hospitalized children and their families.

• 한국공간구조학회논문집
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• 제13권2호
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• pp.57-66
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• 2013

There are a number of construction methods to build spatial structures such as erection method, Element method, Block method, Sliding method, Lift-up method and Push-up method. These methods are uneconomical and low accuracy, and require long construction duration because of a need of a scaffold or a tower crane to build spatial roof frame. In this study, the construction method to erect a truss structure was proposed as an economical and easy installation method. The proposed method has end hinges of keel truss and winches with horizontal cable. This method makes safe and accurate production and reduces construction duration because trusses are built on the floor or supporter. The goal of this study is to verify the validity of construction method by building scale model using the proposed method.