• KIEAE Journal
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• 제3권3호
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• pp.19-25
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• 2003

The Address No.0 of Eco-friendly Architecture offers unique experience for those who visit the place to envisage the future architecture where nature, human and building exist in harmony. It is open to the general public including the students of elementary and secondary schools. This house has been built to provide opportunities for the general public to experience eco-friendly architecture. It's floor area is 42 pyung($140m^2$) and the overall site has the area of 180 pyung($600m^2$). The following illustrates some of its prominent features : ${\bullet}$ Remodeling of a traditional Korean residence ${\bullet}$ Application of passive solar systems ${\bullet}$ Use of clerestory windows and daylighting systems(washroom and machine room) ${\bullet}$ Operation of solar water heaters with flat plate collectors ${\bullet}$ Construction of Biotop(small ecological world) ${\bullet}$ Water circulation for Biotop by photovoltaic(150W) and wind power(400W) generation ${\bullet}$ Outdoor hot water supplied by all-glass evacuated solar tubes. Through this Address No.0 of Eco-friendly Architeture conclusions are as followings. 1. The array of tubes in collector has the best nice in that the number of tube is nine and the tilt angle is the latitude $+20^{\circ}$. 2. The thermal performance of the all-glass solar vacuum collector was excellent than of the flate-plate solar collector. 3. The adaption of new small wind power systems to buildings were proved to produce a profit if it is considered the expense of environment improvement and the wind speed increasing according to rise of building hight.

• KIEAE Journal
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• 제9권5호
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• pp.47-52
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• 2009

Currently, the environmental issue is of great urgency and sensitivity to the future of our planet. Global warming caused by increased CO2 concentration has an alarming impact on the earth's fragile environment. Droughts throughout the world are causing crop failures. Wildfires now burn with far greater rage. Melting ice caps and glaciers are causing floods. Sea levels are rising. Warm unseasonable winters are threatening our fragile eco-systems. Global warming is no longer a theory; it is an obvious fact we are confronted with every day, and the only way we can prevent it is to take action now. The need to reduce CO2 emissions and try to become carbon neutral is of national importance and leadership. We have become so reliant on fossil fuels that nearly everything we do generates CO2 emissions; from our modern farming practices to transport, to the electricity used to turn on a light, boil water in a kettle or cook our meals. A reduction of 50% of CO2 emissions can easily be achieved by decreasing the energy amount used. We tracked the carbon footprint throughout the electricity and heating energy use in homes and confirmed the amount of carbon emissions according to its consumptions. In order to reduce the carbon generation from housing constructions, such as Passive House concept of buildings or low energy buildings, we must adjust its applications best fit to our conditions. And technical elements should be applied to improve our conditions, and the methodology should be actively sought. Most of all, each individual's recongnition who uses these elements is more important than any other solutions.

• Advances in aircraft and spacecraft science
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• 제1권2호
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• pp.197-218
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• 2014

Quite a demanding task frequently arises in space engineering, when dealing with the cargo accommodation of modules and vehicles. The objective of this effort usually aims at maximizing the loaded cargo, or, at least, at meeting the logistic requirements posed by the space agencies. Complex accommodation rules are supposed to be taken into account, in compliance with strict balancing conditions and very tight operational restrictions. The context of the International Space Station (ISS) has paved the way for a relevant research and development activity, providing the company with a remarkable expertise in the field. CAST (Cargo Accommodation Support Tool) is a dedicated in-house software package (funded by the European Space Agency, ESA, and achieved by Thales Alenia Space), to carry out the whole loading of the Automated Transfer Vehicle (ATV). An ad hoc version, tailored to the Columbus (ISS attached laboratory) on-board stowage issue, has been further implemented and is to be used from now on. This article surveys the overall approach followed, highlighting the advantages of the methodology put forward, both in terms of solution quality and time saving, through an overview of the outcomes obtained to date. Insights on possible extensions to further space applications, especially in the perspective of the paramount challenges of the near future, are, in addition, presented.

• 한국응용곤충학회지
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• 제13권4호
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• pp.251-253
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• 1974

한국에 있어서 쥐로 인한 곡물의 피해는 연간 곡물총생산량의 $20\%$에 달한다. 우리나라의 쥐종류는 12종으로 알려져 있으며 그중 집쥐<시궁 쥐>, 지붕쥐<곰쥐>, 생쥐 및 등줄쥐가 대표적이다. 1962년 이래 구서사업은 정부의 주관하에 실시되어 왔다. 살서제로서는 당초 항혈액의고제를 사용하였으나 예산의 제약 때문에 기대하는 결과를 얻지 못하였고 그후 1970년이후 인화아연제로 대체하여 계속사용하였던 결과 기피성으로 인하여 사업성과는 매년 떨어지고 있는 현실이다. 필자는 이러한 문제를 해결하기 위하여 $\ulcorner$파라핀옥스$\lrcorner$를 사용하여 인산아연제의 입자를 피복하여 본제의 독특한 맛을 제거하고 또한 약제의 분해를 지연시키므로서 호식성을 증가시켜 높이는데 성공하였다. 앞으로 이러한 방법이 구서사업에 도입된다면 약효를 상당화 증가시켜줄 것으로 사료된다. 그러나 보다 근본적인 구서대책을 위하여는 본 사업에 대한 국민들의 보다 많은 관심과 이에 대한 철저한 연구, 훈련 및 충분한 자금의 뒷받침이 수반되어야 할 것이다.

• 디지털융복합연구
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• 제11권10호
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• pp.437-443
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• 2013

본 논문은 여행지에서 스마트폰을 이용해 맛집을 검색하여 방문하는 앱을 수행해 봄으로써 스마트폰의 활용도를 높였다. 구현된 앱을 가지고 맛집을 검색하면 최적의 맛집을 선택할 수 있다. 특히 본 앱은 각 지역별로 적합한 메뉴, 식당의 스타일 및 디자인, 가격의 합리성, 종업원의 인적서비스 및 위생 관리 등의 활용도 및 만족도를 통하여 평가되고 입력된 정보를 미리 DB에 등록해 두고 개인적인 취향을 기록해 두기 위해 평점을 분류해서 입력하도록 배치하였으며, 본인의 추억을 기록할 입력란을 추가해 두었다. 더불어 교통편에 대한 정보 필드도 설계하여 여행의 접근성도 높였으며, 향후 여행지 맛집은 물론 유명 관광지, 지인의 집 정보 입력 등으로 DB를 확장해서 활용 가능하다.

• 디지털콘텐츠학회 논문지
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• 제10권2호
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• pp.233-238
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• 2009

디지털 통신 네트워크 기술의 발전에서 인터넷 기술과 스마트 홈 가전기기의 확산은 고속/고품질 홈 네트워크에 대한 필요성을 증가시키고 있다. 홈 네트워크에서 가전기기와 컴퓨팅 기기가 증가함에 따라 홈 네트워크의 데이터 트래픽은 증가할 것이 명백하다. 다양한 홈 네트워크 기기는 멀티미디어 콘텐츠를 얻기 위하여 인터넷 서버에 접속하길 원한다. 따라서 본 논문에서는 가정내에서 이더넷이나 유무선 기술을 사용하기 위해 네트워크에 연결된 디지털 가전기기를 위한 TLC(Telephone Line Carrier) 시스템을 소개한다. 미래의 홈 네트워크 환경에서 TLC 기반의 스마트 홈 네트워크의 주된 목적은 저가격, 쉬운 설치, 고성능, 넓은 영역을 만드는 것이다. 본 논문에서는 스마트 홈 네트워크를 위한 전화선로 통신시스템의 채널용량을 송신전력, OFDM 반송파의 수, 채널손실, 잡음손실에 따라서 정량적으로 비교, 분석하였다.

• 농업과학연구
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• 제23권2호
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• pp.227-232
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• 1996

육묘상자는 매우 유연하므로 인력에 의존하여 취급하는데는 많은 애로사항이 발생한다. 그러므로 본 연구에서는 육묘상자를 취급하기 위하여 수직축, 수평축를 갖춘 핑거의 로봇 핸드를 개발하였다. 수평축의 길이를 달리하여 육묘상자의 각 지점의 처짐량을 측정하였다 핑거의 수평길이가 250mm 일 때 $540{\times}270mm$의 육묘상자의 처짐량이 15mm이하로 되어 적당하다라고 판단된다. 본 연구에서 사용한 핑거의 움직임에는 LM시스템을 사용하였다. 개발한 로봇 핸드는 충남대학교 농업기계공학과에 기 보유하고 있는 직교좌표형 로봇 본체에 장착하여 성능실험을 실시한 결과 만족할 만한 결과를 얻었다. 앞으로 전용 로봇 본체를 개발하여 실용화 되기를 기대한다.

• 한국주거학회논문집
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• 제15권2호
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• pp.27-34
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• 2004

The purpose of this study has two folds. For the local government it gives a guide to establish the housing information system, which provides various housing information in order to promote service to the public on Internet. It also gives a guide for the local government to collect the fundamental data from local housing market and provide them to the policy makers as well as the housing producers (landlords, builders and owner-occupiers). Contents of housing information system website for the local government consist of three main parts. The first part provides housing policy and local housing market information to the upper level local government as well as housing producers. The second part provides housing information for the people who are looking for houses to move the own. Final part provides the procedures of building construction and development plan for landlords to the public. In case of Pyongtaek-City, this study makes them by cluster analysis of houses and households moving pattern as the Internet contents. Housing markets of Pyongtaek-City divide 3 sectors by housing type, tenure type and housing supply ratio etc. And populations prefer to move intra sectors. According to this information, policy-makers should define local housing problems and find solutions and housing producers can supply the house just in sites and in time. In conclusion, local government should provide valuable housing information based on local housing market research to the public for the effective housing policy. As local housing market is formed by various factors it is needed for local government to research housing sub-markets due to apply these research results to the local government for the future.

• 보건교육건강증진학회지
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• 제26권3호
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• pp.63-74
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• 2009

This study was aimed to assess the degree of addiction on computer games and find factors related to game addiction, health perception and health promoting behavior in elementary school students. A study subjects were 814 students in 5th and 6th grades at 4 elementary schools in a city and a county. The items in questionnaire was consisted of general characteristics, circumstances and habits related to utilization of computer and internet game playing, and degree of addiction, health perception and health promoting behavior. We analyzed data using chi-square test, t-test, ANOVA, and multiple regression analysis. In multiple regression analysis, addictiveness on internet game was significantly related to type of computer utilization, frequency and duration of internet game playing, gender, after-school activities, grade points, economical status, and location of computer in a house. Health perception was significantly related to addiction points, gender, residential area, and grade points. And health promoting behavior was significantly related to addiction points, grade level, grade points, and health perception points. Since health promoting behaviors of children in elementary school are in the way of making, their degree of addiction to computer games can greatly influence their attitude towards health and their future life pattern as adults. Therefore an educational prevention program including counselling on game addiction should be devised. And researches will be needed for developing the Korean standard for measuring degree of addiction and a prevention program for peer group's game addiction.

• 한국실내디자인학회논문집
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• 제24권5호
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• pp.87-98
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• 2015

As an apartment house as well as improving quality of life is becoming one of the brands, it is increasing the importance of the outer space with the facilities in the housing complex. In particular, the outdoor playground such as the community facilities that children and adults share as the activity areas for residents has received attention. However, actually children have not used many of Korean apartment housing playgrounds that were installed formally in the scrap area according to the housing plan by residential construction standards. it is considered necessary to improve the quality of the playground in housing complex and reform it in order to make the eco-friendly play space in which children can play safely and h healthily. As an alternative, we analyzed the eco-friendly properties of the playgrounds installed in the eco-friendly housing complex in Germany and derived the main planning elements of eco-friendly playground. In the observational survey of the 10 playgrounds in 9 housing complexes in 5 regions in Germany, we evaluated the environment-friendliness of these playgrounds in the 8 fields(location and placement, ecological environment, play space, play equipment and facilities, additional facilities, materials and resources, energy saving, environmental load reduction) according to the levels(suitable, partial reflection, unsuitable, non-reflection) of reflection of eco-friendly planning factors. The following is the summary of the results about the reflection of eco-friendly planning factors. In terms of "suitable": location and placement(88.8%), play equipment and facilities(73.5%), additional facilities(60.6%), environmental load reduction(54%), and ecological environment(50%) were higher than others. In terms of "unsuitable": there was nothing. In terms of "non-reflection": energy saving(95%), additional facilities(32.2%), and materials and resources(30.9%) were in order. Therefore, on the basis of these results, this study proposed the planning indicators to be considered first and the planning factors that should be complemented and improved in the construction of apartment housing playground in future.