• Title/Summary/Keyword: Technical Instruments

검색결과 130건 처리시간 0.022초

사면의 지표변위계측을 위한 사진측량기법의 적용 (Application of Photogrammetry Method to Measurement of Ground-Surface Displacement on the Slope)

  • 한중근;배상호;오다영
    • 한국환경복원기술학회지
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    • 제4권3호
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    • pp.10-18
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    • 2001
  • The existing measurement system to ground-surface displacement survey of the slope has been including the hazard for the measure in site and the difficulty for install, maintenance and control of expensive instruments, which are impossible of whole survey on the slope surface. To overcome of those defects, Softcopy Photogrammertry method is used, which can measure displacement of ground-surface on the slope and structure deformation vectors. Recently, the survey methods applying the advantages of Photogrammetry and Digital Photogrammetry Survey are widely used. In this study, therefore, the development and application of the new instrument mechanism on the the site example are studied. Through the application of Softcopy Photogrammetry, the 3-D data of ground surface on the dangerous slope could be effectively obtained at the long distance, which are obtained through the reform process of contour line. Those are different to the results of the Close-Range Photogrammetry analysis. In ground instrumentation parts, the new practical system shall be the technical base to improve of the instrument machine as well as can be widely applied in civil engineering and others branch.

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ESSD를 위한 지역 환경영향평가제도의 문제점 및 개선방안 연구 (A Study on the Problems and Solutions of Environmental Impact Assessment System for Environmentally Sound and Sustainable Development)

  • 오해섭;임형백
    • 농촌지도와개발
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    • 제6권1호
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    • pp.15-24
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    • 1999
  • There have always been dilemmas between development and environmental conservation throughout the world. Gradually environmental contamination threatens sustainable development and conservation. we try to study on the sustainable development with environmental conservation. One of the instruments to get this goal is Environmental Impact Statement. Environmental Impact Statement has now become a standard tool of decision making in Environmentally Sound and Sustainable Development. The objectives of this study is to explore and suggest some suggestions for improvements of EIA. 1. Identify all criteria and standards that apply to physical and social environmental components and dynamics. 2. Giving attention to the purpose of the criterion and standard, with respect to resource use and quality. 3. Demonstrate the relevance legal, technical, and scientific authority by early planning through construction, operation and maintenance phases. 4. Implement rationales and protocols for the documentation of standard analytical methods, location of sampling points and statistical analysis of data. 5. Establish precise protocols by predictions of environmental impact relevant for established criteria and standards. Reviewing these protocols with relevant legal authorities prior to their implementation is important.

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Indolent B-Cell Lymphoid Malignancy in the Spleen of a Man Who Handled Benzene: Splenic Marginal Zone Lymphoma

  • Lee, Jihye;Kang, Young Joong;Ahn, Jungho;Song, Seng-Ho
    • Safety and Health at Work
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    • 제8권3호
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    • pp.315-317
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    • 2017
  • We present the case of a 45-year-old man with a history of benzene exposure who developed splenic marginal zone lymphoma. For 6 years, he had worked in an enclosed space cleaning instruments with benzene. He was diagnosed with splenic marginal zone lymphoma 19 years after retirement. During his time of working in the laboratory in the 1980s, working environments were not monitored for hazardous materials. We indirectly estimated the cumulative level of past benzene exposure using job-exposure matrices and technical assumptions. Care must be taken in investigating the relevance of occupational benzene exposure in the occurrence of indolent B-cell lymphoma. Because of the long latency period and because occupational measurement data do not exist for the period during the patient's exposure, the epidemiological impact of benzene exposure may be underestimated.

Policy implications for up-scaling of off-grid solar PV for increasing access to electricity in rural areas of Nepal: Best practices and lessons learned

  • Sapkota, Surya Kumar
    • 한국태양광발전학회지
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    • 제6권1호
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    • pp.8-20
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    • 2020
  • Nepal has huge potential of hydro and other renewable energy resources including solar energy. However, only 70% of the total population have access to electricity despite the long history of hydropower development in the country. Still more than 37% population in rural areas and around 73% population in Karnali Province, one of the least developed provinces, are living without access to electricity despite taking several initiatives and implementing various policies by government supporting electrification in off-grid rural areas. Government together with donors and private sector has extensively been promoting the off-grid solar photovoltaic (PV) echnology in un-electrified areas to increase electricity access. So far, more than 900,000 households in rural areas of Nepal are getting electricity from stand-alone solar PV systems. However, there are many challenges including financial, technical, institutional, and governance barriers in Nepal. This study based on extensive review of literatures and author's own long working experiences in renewable energy sector in Nepal, shares the best practices and lessons of off-grid solar PV for increasing access to electricity in rural areas of Nepal. This study suggests that flexible financial instruments, financial innovations, bundling of PV systems for concentrating energy loads, adopting standards process, local capacity building, and combination of technology, financing and institutional aspects are a key for enhancing effectiveness of solar PV technology in rural areas of Nepal.

Usability of inclinometers as a complementary measurement tool in structural monitoring

  • Pehlivan, Huseyin;Bayata, Halim Ferit
    • Structural Engineering and Mechanics
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    • 제58권6호
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    • pp.1077-1085
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    • 2016
  • In the last few years, many structural monitoring studies have been performed using different techniques to measure structures of different scales such as buildings, dams or bridges. One of the mostly used tools are GPS instruments, which have been utilized in various combinations with accelerometers and some other conventional sensors. In the current study, observation series were recorded for 8 hours with GPS receivers (NovAtel) and Inclination Measurement Sensors mounted on a television tower in Istanbul, Turkey. Each series of observations collected from two different sensors were transformed into a single coordinate system (Local Topocentric Coordinates System). The positional changes of the tower were calculated from the GPS and the inclination data. These changes were plotted in two dimensions (2D) on the same graphic. Thus, the possibility of comparison and analysis were found using the data from both the GPS and the Inclinometer complement each other, in the real test area. The positional changes of the tower were modeled for further examination. As a result, the movement of the tower within an area of $1{\times}1cm^2$ was observed. Based on the results, it can be concluded that inclinometers can be used for monitoring the structural behavior of the tower.

청소년의 가족환경지각과 정신건강과의 관계 (A Study on the Correlation between Perception of Family Environment and Mental Health of Boy's High School Students)

  • 오화선;김미예
    • 모자간호학회지
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    • 제3권1호
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    • pp.25-37
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    • 1993
  • The purpose of this study was to investigate the relation between perception of family environment and mental health of boy's high school students. In order to obtain the appropriate data, a questionnaire was administered to 240 boy's high school 2nd-grade students in Pohang city from March 19 to March 28, 1992. The instruments used for this study were Moos's Family Environment Scale Form R and Kim's Symptom Check List-90. The conclusions were as follows : The level of perception of family environment was lower than mean score. Cohesion, achievement orientation, independence, organization, expressiveness were percepted high but active-recreational orientation, intellectual-cultural orientation were percepted low. Mental health of most respondents was well. The scores of obsessive-compulsive reaction and interpersonal sensitivity were high, the scores of somatization and phobia were low. General characteristic variables significantly related to the level of perception about family environment were father's occupation and mother's education level. There were no significant differences between general characteristic variables and mental health. There were mostly negative correlations between perception of family environment and mental health. Cohesion, expressiveness, independence, intellectual-cultural orientation, active-recerational orientation, moral-religious emphasis, organization were negatively correlated but conflict, achivement orientation, control were positively correlated. Cohesion, expressiveness, conflict, achivement orientation, active-recretional orientation, organization, control were significantly related, but independence intellectual-cultural orientation, moral-religious emphasis were no significant correlation.

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변형된 Outside-In 기법을 이용한 반월상 연골판 봉합술 - 수술 수기 - (The Modified Outside-In Technique for Meniscal Suture - Technical Note -)

  • 이기병;권덕주;이영건;송영준
    • 대한관절경학회지
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    • 제7권1호
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    • pp.96-99
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    • 2003
  • 관절경술의 발달과 반월상 연골판의 기능적 중요성이 강조됨에 따라 반월상 연골판 봉합술은 나날이 발전 되어왔다. 그러나 종래의 기법들은 특별한 기구뿐 아니라 신경, 혈관, 연부조직의 손상을 방지하기 위하여 과다한 피부 절개가 필요하거나, 봉합사 매듭이 관절면에 존재하므로 잠재적인 연골손상의 위험성을 가지고 있었다. 이에 저자들은 spinal needle과 nylon loop를 이용한 변형된 outside-in 기법을 소개하고자 하며, 변형된 outside-in 기법은 안정적이고 간단한 봉합이 가능하면서도 별 도의 피부절개가 필요 없는 장점을 가지고 있다.

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The Significance of the Analytical Sciences In Environmental Assessment

  • Chung, Yong;Ahn, Hye-Won
    • 분석과학
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    • 제8권4호
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    • pp.1079-1087
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    • 1995
  • The quality of human life is directly related to the quality of the environment. To assess environmental quality we must first determine the MCLG(Maximum Contaminant Level Goal), MCL(Maximum Contaminant Level), environmental impact and so on. The MCLG is the concentration at which no known adverse health effects occur. The MCLG is determined by risk assessment identifying which process is hazardous assessing, dose-response, human exposure, and characteristics of risk. With consideration of analytical methods, treatment technology, cost and regulatory impact, the MCL is set as close to the MCLG as possible. In this way, determination of the concentration and national distribution of contaminants is important for assessment of environmental quality The analytical sciences pose potential problems in assessing environmental quality. Continuing improvement in the performance of analytical instruments and operating technique has been lowering the limits of detectability. Contaminant concentration below the detection limit has usually been reported as ND(Not-Detected) and this has often been misunderstood as equivalent to zero. Because of this, more the contaminant concentration in the past was below the detection limit, whereas contaminants can be quantified now even though the contaminant concentration might remain the same or may even have decreased. In addition, environmental sampling has various components due to heterogeneous matrices. These samples are used to overestimate the concentration of the contaminant due to large variability, resulting in excess readings for MCL. In this paper, the significance of the analytical sciences is emphasized in both a conceptual and a technical approach to environmental assessment.

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일본의 ADR법(法)에 관한 연구(硏究) (A Research on the Japanese Alternative Dispute Resolution Law)

  • 김상찬
    • 한국중재학회지:중재연구
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    • 제16권3호
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    • pp.127-160
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    • 2006
  • Civil lawsuits have been the main instruments to resolve any civil disputes until recent times but it has its limitations in resolving all disputes in the specialized and technical disputes only according to the civil trial process. Therefore, many countries have carried out a series of discussions and investigations into the system of Alternate Dispute Resolution(ADR). It should especially be noted that all related countries in the world have enacted a basic ADR law to accelerate the usage of the ADR system. The most representative cases are the American Alternative Dispute Resolution Act of 1998 and Japan's Alternative Dispute Resolution Promotion Law set up in December 2004. As such, there is a need for Korea to enact a basic law regarding ADR following the world trend of major nations. This paper looks closely not only into the enactment circumstances and contents of Japan's ADR law whose legal system is similar to that of Korea but also the aftermath discussions of the Japanese academic circles into consideration, in the hopes of providing reference data for the legislation of the Korean ADR system and further aiding in the development of the ADR law theory.

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전자업종 기업의 기술혁신역량과 기술사업화역량이 신제품개발성과에 미치는 영향과 R&D지원 유용성의 조절역할 (Effects of Technological Innovation Capability and Technology Commercialization Capability on New Product Performance of the Companies in Electronics Industry and the Moderating Role of Perceived Usefulness of Government R&D Support)

  • 전종일;임헌진
    • 대한안전경영과학회지
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    • 제20권3호
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    • pp.47-63
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    • 2018
  • The purpose of this research was to test the effects of technological innovation capability and technology commercialization capability on new product performance of the companies in electronics industry and the moderating role of perceived usefulness of government R&D support. For this study, Research data were collected through questionnaire instruments from the sample of 346 employees in 17 electronics companies of metropolitan area. The 305 sample was selected and analyzed by hierarchical regression technique. The results showed that technological innovation capability and technology commercialization capability had a positive effect on new product performance. And also found out perceived usefulness of government R&D support had the moderate roles between only technical innovation system our of three technological innovation capability factors and new product performance, and also between only manufacturing capability our of three technological commercialization capability factors and new product performance. With the research results, the implications for electronics company were discussed, and the directions for future research were suggested.