• Title/Summary/Keyword: 기계제도

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A Study on Certification Requirements for Small Unmanned Aerial System(sUAS) (소형 무인항공기 운용을 위한 관련법 현황 및 인증방안 연구)

  • Ahn, Hyojung;Park, Jonghyuk
    • Transactions of the KSME C: Technology and Education
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    • v.3 no.1
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    • pp.71-78
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    • 2015
  • Although there are differences in the classification of category adopted by each country, small UAS is usually classified as the one less than 25 kg. UAS has been mainly used for military and public purposes, but in recent years, it has spread to the private sector for hobby, media, and so on. Especially, considering the nature of the operating region and applications, it is necessary to improve operating time, noise and vibration in small UAS to ensure the same level of safety with a manned aircraft. This is because the drone can pose health and safety hazard through collision with manned aircraft or crashing into the ground. In this paper, we investigated operational regulations in the United States and European countries. Based on the investigation, a domestic system development plan for small UAS operation is under development.

Evaluation of the Forestry Mechanization Project Using LISREL Model (LISREL모형을 활용한 임업기계화 사업의 평가)

  • Park, Sang-Jun;Lee, Joon-Woo
    • Journal of Korean Society of Forest Science
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    • v.97 no.6
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    • pp.661-668
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    • 2008
  • This study was conducted to provide the policy information on implementing forestry mechanization through analyzing the project results and policy effectiveness. Study method adopted LISREL (Linear Structural Relationships) model which is the covariance structural equation model. Data was collected by questionnaires on the executors who are actually executing the forestry mechanization project. The analysis results on project outcome, policy satisfaction, and education and training showed the average. But the policy consistency, the consolidation of law and system and the spreading of forest machines showed bellow the average. Therefore, it is necessary to implement the consistent policy through the consolidation of law and system, and to increase the spreading ratio of forest machines in the forestry mechanization. In forestry mechanization project, the policy basis, the spreading of forest machines, and the education and training showed the positive affect on the policy outcome, respectively. The policy outcome had the positive affect on policy satisfaction. Accordingly, although the forestry mechanization policy system is important, it is necessary to spread the forest machines and to increase the training and education of operators for the successful forestry mechanization in the future.

An Analysis on the Situation of Forestry Mechanization in the Production and Supply of Timber (목재생산 및 공급에서 임업기계화의 현황 분석)

  • Kim, Jae-Hwan;Mun, Ho-Seong;Han, Sang-Yoel;Park, Sang-Jun
    • Journal of Korean Society of Forest Science
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    • v.104 no.4
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    • pp.607-614
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    • 2015
  • This study aims to analyze the current status of timber production operation and the effects of the forestry mechanization projects on timber production. In order to increase the domestic timber production, it is necessary to propel forestry mechanization project, improve policy and institution, broaden forest-road network, enlarge the number of forest workers, enhance timber production and supply system, provide forestry machines, establish forest operation system, and train forest workers. In addition, the reestablishment of policy goals, the consistency of policy, and the rearrangement of laws and institution are considered more important. To improve the results and effects of forestry mechanization project, it is necessary to drive of forestry mechanization project, the spread of forestry machines, the cultivation of trainer ability, the development of training materials, and the teaching of field skill. In order to meet timber buyersí preference, timber needs to be produced through whole tree logging operation system. Expanding the proportion of domestic timber among total timber demand in Korea requires price competitiveness, and the supply ability of high quality product from the perspective of length and width.

World Market Study - 일본에서 시도되었던 캔음료자판기의 개인사업 위탁화

  • 한국자동판매기공업협회
    • Vending industry
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    • v.10 no.2
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    • pp.91-93
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    • 2010
  • 요즘 국내 캔자판기 운영사업을 펼치는 음료업체 경기도 좋지 못하다고 한다. 음료업체 입장에서는 장비를 우수 로케이션을 대상으로 무상으로 렌탈하는 경우가 많기 때문에 투자에 버금가는 수익이 나와 줘야 하나 현실은 그렇지 못한 경우가 많다. 물론 현행 캔자판기의 마케팅 구조상 해당음료사의 음료 홍보나 브랜드를 제고하는 효과를 제일 중시해야 할 것이다. 과거만 해도 이런 점 때문에 음료업체들이 캔자판기 운영사업에서 적자가 난다고해도 공격적인 투자를 불사하는 경우가 많았다. 하지만 이제는 캔자판기 운영사업의 효율과 수익성이 점점 중시되고 있다. 수익이 나지 않는 사업에 많은 투자를 할 수 없다는 분위기가 가중이 되고 있는 것이다. 따라서 이제 캔자판기 사업이 발전하기 위해서는 캔자판기 운영사업의 수익성을 제고시킬 수 있는 방안들이 적극 강구될 필요성이 있다. 이에 있어선 많은 방법들이 있겠지만 기존 업체 위주의 운영방식에서 개인사업 위탁화하는 방안도 검토해 봄직하다. 일본에서는 이미 오래 전에 이러한 시도가 있었다. 음료업체나 운영업체에서 자사 퇴직자를 활용해 개인사업 위탁화하는 방법인데 나름대로 장점이 커보인다. 국내는 음료업체가 직영하는 비중보다는 기계를 임대한 운영업체의 운영비중이 높다. 따라서 우리 현실에서는 중소 운영업체가 이 제도의 활용가치가 높아 보인다. 하지만 음료업체에서도 개인을 대상으로 이런 위탁화 사업을 확대하는 방안을 모색한다면 캔자판기 사업 확대의 새로운 전기를 맞을 수도 있을 것이다. 어떻게 이 제도를 활용하느냐에 따라 자판기 운영효율 향상의 새로운 국면을 모색할 수도 있는 것이다. 과거 일본에서 시도되었던 캔음료자판기의 개인 사업 위탁화의 한 사례를 국내 현실에 맞게 응용한다면 캔자판기 운영효율을 제고하는 대안이 나올 수 있지 않을까 생각된다.

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생체독성 억제물질 및 안전성 평가방법 개발을 위한 연구에 대한 기준

  • 문창규;정진호;정기화;이병무
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1992.05a
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    • pp.51-51
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    • 1992
  • 신의 약품을 개발하는 과정에서 안전성의 평가는 신약후보물질의 인체에 대한 유해의 정도를 파악하고 신약후보물질들의 독성을 초기에 검색하여 의약품으로써의 개발여부를 결정하는데 기여함으로써 개발연구에 소요되는 시간 및 경제적 낭비를 줄일 수 있는 매우 중요하고도 필수적인 단계이다. 또한 생체독성억제물질의 개발에 관한 연구는 다양한 연구기법을 활용하여 각종 생체이물에 의한 생체독성의 발현을 억제하거나 발현된 독성반응을 완화, 경감시키는 물질이나 기법을 탐색함으로써 신약후보물질의 창출에 기여 할 수 있을 것으로 기대되고 있다. 이와 같은 관점에서 안전성 연구팀은 그 연구분야를 크게 특수독성검색기술 개발연구와 생체독성억제물질 개발연구 분야로 대별하고 1)발암조기검색법 개발연구 2)독성물질 대사효소계에 관한 연구 3)유전자 손상억제물질개발연구 4)간독성 억제물질 개발연구 5)신장독성 억제물질 개발연구 6)면역독성 억제물질 개발연구 7)대사 및 내분비계 독성억제물질 개발연구 8)순환기계독성 억제물질 개발연구 등 총 8개의 세부과제와 안전성평가제도의 국제화를 위한 제도 및 기준에 관한 연구를 수행하고 있는바 이들의 연구목표와 내용 그리고 1차년도의 연구결과를 개괄적으로 소개함으로써 본 과제가 포괄하는 제반 안전성연구내용에 대한 이해를 도모하고자 한다.

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Job/Occupational Analysis of Secondary Mechanical and Metallurgical Education Teachers Using the DACUM Methodology (데이컴(DACUM) 기법을 활용한 기계·금속 교사의 직무 분석)

  • Lee, Chang-Hoon;Seo, Won-Seok;Kim, Tae-Hoon;Jo, Han-Jin;Kim, Ki-Soo
    • 대한공업교육학회지
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    • v.40 no.2
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    • pp.130-154
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    • 2015
  • The purpose of this study was to analyze the mechanical and metallurgical education (MME) teachers' job using the Developing a Curriculum (DACUM) methodology. To accomplish the purpose of this study, an MME teachers' job/occupational analysis was conducted in the following steps: "Planning the DACUM workshop," "Recruiting/Constructing the DACUM committee members," "Providing the DACUM orientation," "Holding the DACUM workshop," "Verifying the DACUM result," and "Refining the DACUM chart based on verification data." The DACUM job/occupational analysis was conducted by fifteen DACUM committee members in the DACUM workshop in January, 2015; moreover, the DACUM chart of the MME teachers was verified by the group of subject matter experts. The major findings of the study were as follows. First, this study defined the MME teachers who taught mechanical and metallurgical-related subjects to students with the secondary education teacher certification and performed work related to character education, career guidance, life guidance, and others in a specialized high school, the Meister high school. Second, this study determined 16 duties and 199 tasks for fulfilling the MME teachers' job; moreover, the study extracted the importance, difficulty, and frequency of each task and demand for the entry-level workforce. Third, this study provides the DACUM research chart based on the job/occupational analysis results of the MME teachers.

A Study on the Improvement of Depreciation Management for Construction Equipment Considering Economic Efficiency (경제성에 의한 건설중장비 감가상각관리 개선)

  • Lee, Yongsu
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.32 no.4D
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    • pp.357-366
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    • 2012
  • Construction equipment has applied to depreciation over the years, however, the price index for construction equipment is not properly reflected in existing quantity per unit and the local tax law. Thus, this study shows the analysis of the corporate tax law, the local tax law and business accounting standards, characteristics of the domestic depreciation system and depreciation methods, and the capital recovery factor of construction equipment applying the theory for economic efficiency. It also presents cases of depreciation on the basis of quantity per unit and tax law using straight-line depreciation method and declining balance method. It is proposed that the relations of the application system of permissible period for construction equipment and the existing system be explained and the application system of permissible period for construction equipment be imposed. Furthermore, it proposes the development of depreciation tables of construction equipment monthly expenses based on the domestic price index and applications. In addition of that, it proposes the analysis of pros and cons of the methods suggested and application limits of the study and subsequent improvement plans. This study should reflect more rational and objective reality in quantity per unit and tax law.

Cost-Benefit Analysis of Risk Assessment Regulation in Manufacturing Industries (유해위험방지계획서 적용에 따른 업종별 비용편익효과 분석)

  • Lee, Gibaek;Baek, Jong-Bae
    • Journal of the Korean Institute of Gas
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    • v.16 no.6
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    • pp.80-86
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    • 2012
  • From 1982, the Korean Ministry of Employment and Labor has executed the risk assessment regulation for manufacturing industries. When a manufacturing company install, transfer, or modify the major facilities, the program inspects and verifies safety of the working place to ensure safety against risks. This study performed cost-benefit analysis of the program for the eight industrial categories that were free from the program. The cost-benefit analysis is the basic method to estimate the effect of the policy execution, and used to justify the policy effectiveness. As a result, there is the biggest benefit in the manufacture of basic metal products and then motor vehicles, trailers and semitrailers, other manufacturing, other machinery and equipment, wood products of wood and cork, rubber and plastic products, food products, furniture in order. Thus the hazard prevention program should be applied into the 8 industrial categories in order to strengthen national competitiveness, protect labors's safety, reduce the social cost and improve the welfare.

Institutionalization of Korean Native Beef Production and the Characteristics of Commodity Chain: the Case of Hampyong-gun in Jeonnam Province (한우 생산 제도화에 따른 한우 상품사슬의 특징: 전남 함평군을 중심으로)

  • Kim, Na-Ri;Park, Kyonghwan
    • Journal of the Economic Geographical Society of Korea
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    • v.17 no.2
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    • pp.296-320
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    • 2014
  • Since the last decades, livestock ranching has been fast industrialized and the global trade of meat products is sheer increasing. And the Korean government opened its domestic beef market to meet increasing domestic demand for beef. In this context, domestic beef production took its way to specialization and scale economies, and subsequently the commodity chain of beef became different from the conventional one. Such institutions as beef quality grade, HACCP, and brand marketing have strong influence on current beef production systems. Furthermore, along with the macro-scale change, regional and local systems and actors also transform the beef commodity chain. Hampyong-gun, which had once been a declining rural and under-served region in the past, is now actively reviving its economy by producing industrialized, specialized, and localized beef. Such native beef production is both impacted by and associated with multi-scaled actors, their institutions and supporting discourses. These heterogeneous actors and institutions form a newer form of native beef system in the region.

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Problems and countermeasures of the private security industry according to the current situation

  • Park, Su-Hyeon;Choi, Dong-Jae
    • Journal of the Korea Society of Computer and Information
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    • v.25 no.12
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    • pp.315-320
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    • 2020
  • The purpose of this study is to analyze and interpret the current situation of private security companies·guards for the past three years, security companies by size, general·special (new education), and qualification system provided by the Police Agency, Security Association, etc. It provides a theoretical foundation for private security and provides a new perspective for interpreting private security. As a result, through the current situation, this private security has a concentration of metropolitan area and facility security, an abnormal personal protection company contrast, the number of personal protection institutes, there is a special security shift to regular jobs, and the current continuous education On the other hand, the education of special security guards has been shown to be limited. In the qualification system, the utilization of security instructor qualifications and the utilization and public relations of personal probation officer qualifications will appear. The current state of typical private security is as follows. The first is the balanced development of private security and the clarity of business divisions. Second, the quality of private security education and educational institutions must be high. Third is the recognition of the qualification system and active public relations.