• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1995.04a
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• pp.55-56
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• 1995

작물의 생육환경을 계측하기 위한 환경 센서는 공업용으로 이용되는 센서들과는 달리 작물의 적정 생장환경 범위 내에서의 정확도와 안정성이 중요하고, 온실 환경에 대한 내구성 및 신뢰성이 요구되며, 가격이 저렴하고, 소형ㆍ경량화가 이루어져야 한다. 또한, 생장환경 변화로써 작물의 생장량을 증대시킬 수 있도록 하기 위해 생장환경 자료를 수집ㆍ분석할 수 있는 시스템도 필요하다. (중략)

• Journal of the Korean Institute of Landscape Architecture
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• v.43 no.1
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• pp.54-68
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• 2015

The purpose of this study was to analyze the effect of environmental perception in neighborhood parks on user's recognition of health improvement. This study used objective field survey data and subjective user survey data at 8 neighborhood parks in Changwon City. According to the results, the perceptions of distance and street environment from home to park were evaluated highly but the perception of water spaces and various attractions within the parks were rated lowly in most of parks. As a result of factor analysis, 23 environmental perception variables were classified into 6 factors such as scenery, comfort, accessibility, activity, convenience and amenity. For the result of regression analysis between environmental perceptions and user's recognition of health improvement based on 6 factors, the recognition of physical health improvement was significantly influenced from environmental perception factors in 4 parks among 8 parks. 'Accessibility' and 'activity' were analyzed as the meaningful factors in 3 parks. Also, recognition of mental health improvement was significantly influenced from environmental perception factors in 5 parks among 8 parks and especially 'accessibility' was showed as the significant factor in 4 parks. The findings from this study can contribute to improve the physical environments of the present parks and can be a basic data for new park development.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2000.04a
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• pp.321-322
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• 2000

대기중의 유해 유기오염물질의 배출농도를 규제하는 법규와 표준지침이 제정되어 있으나 시료채취와 분석까지 시간이 많이 걸려 빠른시간내 확인하기엔 어려운 실정이다. 특히 악취성 휘발성 유기물은 오염발생이 순간적으로 일어나 이를 신속하게 규명하지 않으면 원인 규명이 어려운 실정이다. 본 연구에서는 이동형 FT-IR을 사용하여 대기중에 존재하는 유해 유기오염물질의 신속하게 분석할 수 있는 분석법을 확립하고자 하였다. (중략)

• Journal of the Korean Society of Marine Environment & Safety
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• v.16 no.4
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• pp.415-420
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• 2010

"Journal of the Korean Society of Marine Environment & Safety" is representative scientific journal about ocean environment and ocean safety in Korea. This study analyzed research trend of "Journal of the Korean Society of Marine Environment & Safety" through review of articles published in the journals for 10 years tram 2000 to 2009. On the basis of the pursuit of learning and academic constitution of "The Korean Society of Marine Environment & Safety", criteria items of analysis for research trend such as authors institution of employment, region of authors' institution, form of participation in research, article's educational nature, article's method of study, article's area of study, etc. were set up and applied to 310 research articles published in "Journal of the Korean Society of Marine Environment & Safety" for 10 years.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.36 no.12
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• pp.1207-1215
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• 2008

Satellite generates a complex electromagnetic noise by conducted and radiated coupling effect of the various electrical instruments. This noise may cause serious problems on the satellite system. To minimize the electromagnetic coupling effects and maintain the system safety margin, system noise reduction technique should be applied from the beginning of the system design. The COMS system is evaluated by measuring the conducted noise on system electrical power leads at PSR(Power Supply Regulator) and verifying a 6 dB system safety margin under the complex noise environment with current injection. The radiated noise due to the complex transmit antenna configuration is evaluated by integrating all unit-level RE measurement results, and the RF compatibility between spacecraft and launch vehicle is analyzed with the above estimations. This paper describes the COMS EMC compatibility analysis with respect to each unit level EMC test results, and RF compatibility analysis between spacecraft and launch vehicle. The analyzed results will be reflected on FM(Flight Model) EMC test.

• Journal of Radiation Protection and Research
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• v.24 no.3
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• pp.155-160
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• 1999

In the natural, there exist several kinds of radioactive isotopes. From atmospheric weapon tests and then some isotopes are naturally radioactivity above all things, nuclear power plant operation and man-made radioactive isotopes concern steadily growing in the environment. During the fission process of nuclear weapon tests and nuclear power plant operation, more than 200 radioactive isotopes are generated. Among them, $^{90}Sr$ and $^{137}Cs$ has been regarded as very important isotopes due to characteristics. In this paper, a quantitative analysis method of environment low level $^{90}Sr$ is studied. Radioactivity level of the environmental $^{90}Sr$ is very low, and it emits continuous beta spectrum, and $^{90}Sr$ exists together with $^{89}Sr$, $^{90}Y$ and other radioactive isotopes. It very difficult to make the quantitative analysis of $^{90}Sr$. For the analysis of low level radioactive strontium, enrich and chemical separation of strontium from the other radioactive isotopes are needed. For the estimation of strontium recovery ratio, so called SGAT(Strontium Gravimetric Analysis Technique) was generally used among the domestic research groups, and chemical procedures were developed appropriation for the SGAT, Recently, by using ICP(Inductively Coupled atomic Plasma emission spectrophotometer), amounts of stable atoms can be measured easily and accurately to the extend of ppm or ppb. In this paper, new chemical procedures are developed to exploits the ICP technique. New developed method has simpler chemical treatment procedures and then it gives more accurate results compared with the traditional SGAT.

• Journal of Families and Better Life
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• v.12 no.1
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• pp.117-131
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• 1994

본 연구는 근린환경에 대한 거주자의 인지도를 파악하고, 현재 거주하고있는 지역의 근린환경에 대한 만족도를 조사하여 앞으로의 주거이동 성향이 어떻게 나타날 것인가를 예측해보는데 그 목적이 있다. 측정도구의 신뢰도계수($Cronbach's\;\alpha$)는 0.865이며, 분석방법은 빈도, 평균, $x^2$ 검증, t-검증, 일원변령분석 요인분석, 피어슨의 상관계수, 중다회귀분석, 다변량판별분석을 사용하였다. 연구결과는 첫째 '입지성' 속성에 대해 거주자의 인지와 만족이 가장 긍정적이었고 '쾌적성 및 정체감' 에 대해 가정 부정적이었다. 둘째 근린환경 인지도가 높을수록 부인의 교육수준이 높을수록 주거소유권이 자가이고 상가주변지역에 살고 있는 거주자들의 근린환경에 대한 총 만족도가 높게 나타났다. 셋째 거주기간 총 만족도, 주거용도 지역, 주택규모, 소득수준이 주거이동 성향을 판별하는 변인으로 나타났다.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2022.10a
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• pp.175-176
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• 2022

본 연구에서는 건축공사의 공정별 공정내용을 파악하고 그에 따라 발생하는 각종 유해요인을 분석하여 공정별 유해요인에 따른 작업환경측정대상과 특수건강진단의 정확한 진단항목 대상을 분석한다. 이를 통한 유해 공정에 따른 정확한 유해요인인자의 파악을 통해 작업환경측정 및 특수건강진단을 유해인자별 정기적으로(산업안전보건법 시행규칙 별표23 특수건강진단의 시기 및 주기를 참조)실시한다면 유해 인자에 따라 표적 추적 검사를 통해 보다 유의한 결과를 측정 가능하며 도출된 결과로 관리적, 공학적, 개인적 개선대책을 세워 관리한다면 직업성 질병을 예방하고, 쾌적한 작업환경을 조성하여 근로자의 안전과 보건을 유지증진 할 것으로 판단되었다. 또한 정기적인 특수건강진단으로 직업성 질병의 예방 및 조기발견으로 사후조치를 적절히 하여 근로자 건강 보호와 노동 생산성 향상을 기대할 수 있을 것으로 기대된다.

• Proceedings of the Korea Water Resources Association Conference
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• 2007.05a
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• pp.648-651
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• 2007

하천의 정상적인 기능을 회복시켜 하천 생태계 보전과 환경적으로 안정된 하천 조성이 이루어지도록 하기 위해서는 하천을 보다 자연스럽고 지속적으로 관리하기 위한 효율적인 환경유량의 관리가 필요하다. 본 연구의 목적은 수리구조물에 의한 하천유황 및 하천환경의 변화를 분석하는 기법을 제안하는데 있다. 이를 위하여 먼저, KModSim모델을 이용하여 금강수계에 위치한 대청댐과 용담댐의 운영 전후 가정조건하에서 1984년부터 2006년까지 22년간의 유량자료를 수통지점과 공주지점에 대하여 생산한 후, 환경유량 설정 도구로서 호주 eWater CRC에서 개발한 RAP(River Analysis Package)을 이용하여 금강유역의 유황변화를 통계적으로 분석하였다. 본 연구결과는 향후 수질, 서식처 등 하천환경 변화를 포함하여 하천의 건강성 평가를 위한 기초자료로 사용될 것이다.

• The Journal of the Korea Contents Association
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• v.19 no.9
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• pp.181-194
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• 2019

The purpose of this study is to investigate the effect of physical environment of Japanese restaurant on customer satisfaction, revisit intention and word of mouth intention. For this purpose, data were collected from 341 adult males and females who had used Japanese restaurants in Daegu. SPSS program frequency analysis, factor analysis, regression analysis and multiple regression analysis were used for data analysis. Through the factor analysis, the physical environment of the Japanese specialty restaurant was identified as a component of comfort, aesthetics, and convenience. As a result of the multiple regression analysis, the three components of the physical environment have positive effects on customer satisfaction, return visit intention, and word of mouth intention. The results of regression analysis showed that customer satisfaction had a positive effect on revisit and word of mouth intention. Through the results of this study, we confirmed the physical and environmental impacts of the specialty restaurants and suggested the practical and theoretical implications.