• 조명전기설비학회논문지
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• 제25권6호
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• pp.18-27
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• 2011

LED lighting because of high efficiency, long life, friendly environment, as a general lighting of the next generation, has been substituted for incandescent bulb and fluorescent lamp. The proposed system for use of solar battery is the intelligent controller for LED street lights which is improved the method of battery charging and charging efficiency in winter to extend battery life cycle, controlled lighting current according to SoC and in steps. Also, it is implemented emotional lighting which is controlled with the surrounding environment, by using colorful sub LED to take up 10[%] of a source of total light, white LED. As a lab results, the proposed system was implemented functions to adapt to the environmental changes, and improved the charging efficiency and battery life cycle.

• 한국생물환경조절학회:학술대회논문집
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• 한국생물환경조절학회 1992년도 학술논문발표요지
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• pp.23-24
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• 1992

식물공장에서 식물생산시 어떤 종류의 인공광을 사용하는가는 중요하다. 지금까지 연구는 HID(High Intensity Discharge)램프가 생육에 좋다고 하였으나, 실제로 너무 비싼 가격때문에 실제는 유럽의 농가에서도 이용되지 않고 있다. 본 연구는 자연광, 형광등, 백열등, 특수램프를 이용한 보광을 통해 광조건에 따른 백경채, 탑채, 상추, 쑥갓, 잎들께의 생육을 보고자 하였다. (중략)

• 한국생물환경조절학회:학술대회논문집
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• 한국생물환경조절학회 1992년도 학술논문발표요지
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• pp.25-26
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• 1992

식물공장에서 식물생산에 중요한 요인의 하나가 최적 양액과 배지조건이다. 세계적으로 식물공장은 완전한 수경지배시설을 갖추고 있으나 우리나라는 아직 초기단계에 있어 여러가지 기초연구가 부족한 실정이다. 그러므로 우리의 현실에 알맞은 조건을 찾아내어 실용화하기 위한 연구과정의 하나로 수경재배시의 배지와 양액종류에 따른 엽채류의 생육을 살펴보고자 한다. (중략)

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2004년도 임시총회 및 추계학술발표회
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• pp.377-380
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• 2004

To identify the effect of landfill waste for groundwater and unsaturated air environment, soil gas survey and hydrogeochemical study were executed. The geology of the study area is granite and aquifer is mainly composed of sandy soil. The results of spatial distribution from soil gas showed the boundary of buried waste and processes and degree of waste decomposition. Groundwater contamination by leachate from landfill is controlled by groundwater flow attributed by the original topography and liner.

• 실내환경 및 냄새 학회지
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• 제17권4호
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• pp.346-354
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• 2018

In this study, the condition of the hazardous materials in the bus was monitored according to the ventilation mode of the air conditioning system during bus service. The bus was surveyed using the indoor air quality measurement method of public transportation vehicles within one year of delivery. We evaluate the $CO_2$ and $PM_{10}$, which are the controlled parameters in buses by the Ministry of Environment, and VOCs and HCHO, the non-controlled parameters. The $PM_{10}$ concentration increased due to outdoor air intake; however the $CO_2$ concentration was found to decrease. In addition, the concentration of VOCs and HCHO was found to decrease due to the forced ventilation system and the outdoor air intake. These results show that the concentration of the other materials except $PM_{10}$ can be changed due to the outside air concentration and forced ventilation system. Therefore, through indoor air quality characteristics of the bus according to air condition system are intended to be used as the basis of an operation manual.

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2010년도 춘계학술대회 논문집
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• pp.289-290
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• 2010

• 한국환경보건학회:학술대회논문집
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• 한국환경보건학회 2006년도 Perspectives of Evironmental Health Issues in Asia-Pacific Region
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• pp.111-122
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• 2006

• 복식문화연구
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• 제6권1호
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• pp.121-135
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• 1998

This study discusses the concept on environment-friendly textile products, environmentally oriented processes of fiber and fabric production, and case reports of environments-friendly products. This study may inspire recognition and necessity of environment-friendly textile products to textile industry and designers ,and also develop the consideration of environmental aspects in the field of textile design and fashion design. Environment-friendly textile products mean not only natural products but also the products reduced the environmentally harmful consequences of their production processes. Because the textile production processes may cause environmental problem. the processes of bleaching, dyeing, mercerising, proofing, and establishing must be carefully controlled. These environment-friendly textile products in this study are divided into development of environment-friendly textile products, recycled textile products, products which are produced by environmentally oriented processes, and recycling capacity in the process of the coming into use. If the textile industrialists and its designers are continuously interested in those environment-friendly products, the textile industrialists produce environment-friendly products in manufacturing process, and the textile and the fashion designers design their products having the conciousness of environment. They reduce environmental pollution caused by producing textile products and are survived in the struggle of existence of the future world trade market.

• 농업과학연구
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• 제24권1호
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• pp.21-28
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• 1997

전국 일원의 시설 재배 농가 중 353 농가를 방문하여 해충 및 천적의 분포를 조사한 결과 전체 조사 농가의 73%에서 총 52종의 해충이 발생되고 있었으며 이 중 꽃노랑총채벌레, 점박이응애, 온실가루이, 목화진딧물, 복숭아혹진딧물 등이 주요 해충으로 조사되었다. 천적의 발생은 아주 미미하였으나 방문 농가의 11%인 40개소의 시설재배 농사에서 확인하였으며 이는 해충이 발생한 농가의 약 17%에서 볼 수 있었다. 주요 천적으로는 전체 조사 천적 중 진디벌류가 63%, 무당벌레류가 20%, 애꽃노린재류가 8%를 차지하였으며 이들 이외에도 꽃등에류, 포식응애류, 풀잠자리류, 좀벌류, 혹파리류가 채집되었다. 또한 주요 작물별 해충과 천적의 발생정도를 살펴본 결과 토마토에서는 온실가루이, 오이에서는 꽃노랑총채벌레, 목화진딧물, 참외 및 수박에서는 꽃노랑총채벌레와 응애류, 고추에서는 복숭아혹진딧물과 꽃노랑총채벌레, 딸기에서는 응애류와 진딧물류 등이 주요해충으로 조사되었다.

• 한국IT서비스학회지
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• 제14권1호
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• pp.129-143
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• 2015

This study has two goals. The first goal is to investigate whether worked examples are effective in the ill-defined domain with on-line learning and the second goal is to find out which components (conceptual or procedural knowledge) of worked examples are effective factor at the given learning environment. We carried out three experiments in which Korean undergraduate or graduate students were working in three or four conditions of worked examples (CWE, PWE, CPWE, or the control group). While experiment 1 conducted in on-line learning environment did not find any effect and difference among groups and also any logical reason for those results, experiment 2 conducted in completely controlled laboratory setting with less knowledgeable students showed the clear difference among groups by the order CPWE, PWE, and CWE. Experiment 3 in which highly knowledgeable and motivated students were presented the same materials in more controlled on-line learning environment indicated the difference among groups by the order CWE, CPWE, and PWE. The results were discussed within the framework of cognitive load theory.