• 제목/요약/키워드: Basic Industry

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석탄계 입상활성탄을 이용한 수용액으로부터 염기성 염료의 제거 (Removal of Basic Dye from Aqueous Solution using Coal-based Granular Activated Carbon)

  • 최한아;박하늘;문혜원;김은빈;장연우;원성욱
    • 청정기술
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    • 제23권2호
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    • pp.188-195
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    • 2017
  • 본 연구에서는 석탄계 입상활성탄을 이용하여 수용액으로부터 염기성 염료 Basic Blue 3 (BB3)의 흡착에 대해 조사하였다. 모든 실험은 회분공정에서 수행하였고, 활성탄의 투입량, 접촉시간, 초기농도 및 온도와 같은 흡착변수들에 대해 평가하였다. 활성탄의 투입량이 증가할수록 BB3 제거율도 증가하였으며, 활성탄 0.2 g 이상에서 초기농도 $50mg\;L^{-1}$의 BB3가 100% 제거되었다. 또한, 흡착평형에 도달하는 시간은 염료의 초기농도에 의존적이었다. Langmuir 모델에 따르면, 석탄계 입상활성탄의 최대흡착량은 25, 35, $45^{\circ}C$에서 66.45, 84.97, $87.19mg\;g^{-1}$으로 산출되었다. 그리고 Gibbs 자유에너지 변화량, 엔탈피 변화량, 엔트로피 변화량과 같은 열역학적 변수들에 대해 평가하였다.

건설업 기초안전보건교육 현황 및 개선에 관한 연구 : 교육 내용 및 방법을 중심으로 (A Study on the Status and Improvement of the Basic Occupational Safety and Health Training for the Construction Industry : focused on the Educational Methods and Contents)

  • 신기남;주선우;양상현
    • 한국산학기술학회논문지
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    • 제16권5호
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    • pp.3484-3490
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    • 2015
  • 건설산업은 타 산업에 비해 재해율이 높으며, 그중에서도 특히 사망자 발생 등 중대재해 비율이 높아 안전교육 및 관리의 중요성이 매우 높은 산업이다. 고용노동부는 근로자의 안전의식을 고취하고 사고율을 낮추기 위해 건설현장의 모든 근로자를 대상으로 건설업 기초안전보건교육을 실시하도록 하고 있다. 그럼에도 불구하고 이러한 의무를 지키는 현장이 한정적일뿐더러 형식적인 교육으로 인하여 그 효과가 미미하다는 지적이 있다. 이에 본 연구는 건설업 기초안전보건교육 실시현황, 교안 사례 및 교육방법을 분석하여 문제점을 파악한다. 또한 효과적 교육법에 관한 선행연구를 분석하여 근로자의 안전의식 고취에 효과적인 교육 방법을 제시하고, 최근 건설현장 사망사고 유형을 공종별로 분류함으로써 교육 대상 특성을 고려한 교육내용을 현행 건설업 기초안전보건교육의 개선방안으로 제시한다.

PMP(Personal Multimedia Player) 학습자의 기본심리욕구 요인이 학습만족과 학습전이를 통해 학업성취도에 미치는 영향 (The Effect of PMP Learner Basic Psychological Need factor on Academic Achievements through Learning Satisfaction and Learning Transfer)

  • 이은혜;권두순
    • 디지털산업정보학회논문지
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    • 제13권1호
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    • pp.213-227
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    • 2017
  • The recent entry into information society as well as the development and universalization of the Internet through rapid development of ICT technology produced a new educational method called PMP learning. PMP learning overcomes restrictions of previous education methods in terms of time and space and allows the learners to customize their learning environments according to their leads, providing voluntary education that centers on the learners. This study aims to verify the causal relationship in academic achievement of PMP learners through the theory of basic psychological desire, learning satisfaction, and learning metastasis. In order to accomplish this, a study model which applies perceived autonomy, perceived competence, and perceived relationship, which are major variables of the theory of basic psychological desire, was presented. For practical verification of the study model, survey analysis was conducted for students of R High School in Hamyang. Through this, the study aims to provide basic materials for improving the academic achievement of learners in PMP learning. It also plans to suggest educational effects that can be obtained by supporting intrinsic motivation of learners.

논문 - 중소 어항 및 배후지역 실태와 유형별 정비방안 (A Study on Conditions of Small Fishing Village & Fishing Port and Development Way)

  • 윤상헌;김진환;전택기
    • 한국관개배수논문집
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    • 제18권2호
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    • pp.122-141
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    • 2011
  • The purpose of this study was to analyze the conditions of small fishing village & fishing port and to suggest the development direction of them. For this, we tried to field survey and research of development demands for 100 sample places. The results of this study were as follows; First, Small fishing villages & fishing ports have different characteristics and their primary industry was a fisheries. And they have a poor condition for basic facilities and industrial facilities, more smaller fishing port. Second, The living satisfaction of residents was decreased gradually because of a decrease in amount of catching fish, a population aging and etc. Residents and public officers was to demand an expansion of basic facilities, an investment of national expenditure and a simplification of administrative procedure. Third, We could establish the development directions by geographical location and funcion of them. And They must development consider their characteristics.

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산업단지 에너지사용계획을 위한 표준데이터 산정 연구 (A Study on the Calculation of Standard Data for Energy Use Plan of Industry Complex)

  • 서광수
    • 한국태양에너지학회 논문집
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    • 제34권4호
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    • pp.101-109
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    • 2014
  • The Consultation about Energy Use Plan is prescribed by the Energy Use Rationalization Act. This study calculated the Standard Data for Energy Use Plan of Industry Complex by the 9th Korean Standard Industrial Classification Divisions so that the energy demand reflecting the industrial technology change and characteristics of Manufacturing Divisions would predict. To achieve this aim, analysis on thousands of data in Energy Consumption Report Forms reported from industries which annual consumption of energy exceeds 2,000toe from 2009 to 2010 was carried out. The results showed that calculated overall mean fuel basic unit decrease, electricity basic unit increase and energy basic unit increase compared to that of the Notification No. 2002-130 of the Ministry of Commerce, Industry and Energy, therefore it means that heat source of energy facilities transferred from fuel to electricity. Also resultingly suggests that the related notification, code etc. are amended as soon as possible.

자동차 부품 현업 분석을 통한 설계 BOM, 생산 BOM, 공정 BOM 구조 설계 (eBOM, mBOM, processBOM structure in analyzing of automobile part industry)

  • 이승우;이재경;이화기
    • 대한안전경영과학회지
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    • 제12권2호
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    • pp.125-132
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    • 2010
  • In accordance with the trend for cooperation of related company, BOM (Bill of Materials) has become an important factor in the manufacturing of production. BOM manages a various basic information of design, production, and process and so on. Especially, automobile industries are related to many company, they build a cooperative system from the communication of information. In this study, we have analyzed a BOM structure of a well-used automobile part industry and proposed a structure of engineering BOM, manufacturing BOM, process BOM for cooperative environment. A proposed various BOM structure are flexible in responding to the situation of structure alternations for automobile part. And also they include in environment factors. It is expected that these BOM structure will be used to basic template in automobile part industry which could be loaded with cooperative hub-system.

건설공사보험 사례를 활용한 건설현장 인명사고 정량화 모델 개발 기초연구 (A Basic Study on Quantification Model Development of Human Accidents based on the Insurance Claim Payout of Construction Site)

  • 하선근;김태희;김지명;장준호;손기영
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2017년도 추계 학술논문 발표대회
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    • pp.195-196
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    • 2017
  • The number of human accidents in the construction industry is increasing every year, and it constitute the highest percentage among industry. This means that activities performed to prevent safety accidents in the country are not efficient to reduce the rate of accidents in the construction industry. In order to solve this issue, research has been conducted from various perspectives. But, research regarding to quantification model of human accidents is insufficient. the objective of this study is to conduct a basic study on quantification model development of human accidents. To achieve the objective, first, Cause of accident is defined the through literature review. Second, a basic statistic analysis is conducted to determine the characteristics of the accident causes. Third, the analysis is conducted after dividing into four categories : accumulate rate, season, total construction cost, and location. In the future, this study can be used as a reference for developing the safety management checklist for safety management in construction site and development of prediction models of human accident.

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운항 안전 및 효율성 향상을 위한 최적 항로 평가 시스템 기본 연구 (Basic Research of Optimum Routing Assessment System for Safe and Efficient Voyage)

  • 이진호;최경순;박건일;김문성;방창선
    • 대한조선학회논문집
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    • 제42권1호
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    • pp.57-63
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    • 2005
  • This paper introduces basic research of optimum routing assessment system as voyage support purpose which can obtain safe and efficient route. In view point of safety, the prediction of ship motion should be evaluated in the condition of rough weather This part includes general seakeeping estimation based on 3 dimensional panel method and parametric roil prediction. For increasing voyage efficiency, ETA(Estimated Time of Arrival) and fuel consumption should be calculated considering speed reduction and power increase due to wave effects based on added resistance calculation and ship performance characteristics. Basically, the weather forecast is assumed to be prepared previously to operate this system. The idea of these factors in this system will be helpful to escape from dangerous voyage situation by wave conditions and to make optimum route planning based on ETA and fuel consumption.

공공정보자원의 민간 활용 방안 연구 (A Study on Policy for Exploiting Public Information in Private Sector)

  • 이재진;김우식
    • 한국문헌정보학회지
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    • 제33권2호
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    • pp.185-202
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    • 1999
  • 정보산업이 국가의 기간산업으로 발돋움하면서 정보산업의 핵심을 이루는 정보자원의 개발과 확보는 정보산업의 발전과 성공의 중요한 요인이 된다. 이때 공공부문에서 보유하고 있는 공공정보자원은 국가적인 정보자원의 확보를 위한 기반이 될 수 있으며 공공정보자원의 적극적인 활용은 거시적으로 정보산업의 발전과 직결될 수 있다. 본 연구에서는 이와 과하여 공공정보자원의 민간 활용 방안을 제시하였다 공공정보자원의 민간 활용 은 공공부문의 정보자원을 민간 사업자에게 제공하여 정보의 부가가치화와 상업화를 통해 최종 이용자인 국민에게 제공하는 것으로서 민간 사업자의 사업 기회 창출과 이를 통한 산업 육성, 그리고 공공${\cdot}$민간 부문간의 역할 분담을 통해 보편적 서비스를 실현할 수 있다.

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플랜트 설계를 위한 표준코드의 활용체계 개선방안 (Application System Improvement of the Codes and Standards for Plant Design)

  • 구본학;김태희
    • 한국건설관리학회논문집
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    • 제8권4호
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    • pp.81-89
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    • 2007
  • 플랜트 산업은 2004년도 기준 해외 건설 수주액의 70%를 차지하는 매우 중요한 산업이다. 플랜트 산업은 E(Engineering), P(Procurement), C(Construction) 산업이라고 불리며 국내 플랜트 산업의 기술력은 일부 시설관련 상세설계와 시공부문의 경쟁력을 확보한 상태이다. 그러나 플랜트 산업의 E, P, C 가운데 고부가가치 창출이 가능한 E부문의 기획, 기본설계 기술이 미흡하여 기술력 향상이 필요하다. 따라서 고부가가치 창출이 가능한 기획, 기본설계 기술경쟁력을 향상시키기 위하여 플랜트 설계를 위한 표준코드활용상의 문제점을 분석하고, 이에 대한 개선방안을 제시하고자 한다.