• Title/Summary/Keyword: Industrial Practices

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Screening of Promising Bivoltine Hybrids of Mulberry Silkworm for their Susceptibility to Bombyx mori Nuclear Polyhedrosis Virus and Bombyx mori Infectious Flacherie Virus

  • Kumar L. Hemanth;Sen Ratna;Nataraju B.;Mamatha M.
    • International Journal of Industrial Entomology and Biomaterials
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    • v.12 no.2
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    • pp.95-100
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    • 2006
  • Central Sericultural Research and Training Institute, Mysore have evolved several highly productive bivoltine hybrids which can produce international grade raw silk. Among them $CSR2{\times}CSR4,\;CSR2{\times}CSR5,\;CSR3{\times}CSR6,\;CSR17{\times}CSR16,\;CSR18{\times}CSR19$ and $CSR12{\times}CSR6$ are being popularized in the field. There is a minimum difference in their economic characters but they appear to differ in survival. Though they are productive under high input management conditions, they are very susceptible to different diseases under normal rearing practices. No systematic attempts have been made to test their susceptibility status / resistance. Thus the present study is a modest attempt to screen the above six productive bivoltine hybrids to two important pathogens viz., Bombyx mori Nuclear Polyhedrosis Virus (BmNPV) and Bombyx mori Infectious Flacherie Virus (BmIFV) along with existing hybrid, $KA{\times}NB4D2$ to assess their susceptibility / resistance. The results shows that the productive hybrid $CSR2{\times}CSR4$ is the most resistant to BmNPV and it is suggested by its highest $LC_{50}$ value followed by $CSR12{\times}CSR6,\;KA{\times}NB4D2,\;CSR3{\times}CSR6,\;CSR17{\times}CSR16,\;CSR18{\times}CSR19,\;CSR2{\times}CSR5$. Based on the $LC_{50}$ value and $LT_{50}$ values for BmIFV, the hybrid $KA{\times}NB4D2$ was found to be the most resistant (1st position) one followed by $CSR3{\times}CSR6$ (2nd position) $CSR2{\times}CSR$ (3rd position) and $CSR12{\times}CSR6$ (4th position) $CSR17{\times}CSR16$, $CSR18{\times}CSR19$ (5th position) and $CSR2{\times}CSR5$ being the least. The response of 7 bivoltine hybrids to both the pathogens BmNPV and BmIFV indicates that, the hybrids $CSR2{\times}CSR4$, $CSR12{\times}CSR6$ and $KA{\times}NB4D2$ were found to be the most resistant when compared to others. Further, $KA{\times}NB4D2$ being less productive hybrid with a shell ratio of 20.08%, the other two hybrids $CSR2{\times}CSR4$ (Cocoon shell ratio, 21.44%) and $CSR12{\times}CSR6$ (cocoon shell ratio, 23.45%) can be considered to be most productive with superior quality cocoon and resistant to both BmNPV and BmIFV pathogens. The overall study indicated that the hybrid $CSR2{\times}CSR5$ is the most susceptible hybrid to both the pathogens.

Determination of Heavy Metal Unit Load from Transportation Landuses during a Storm (교통 관련 토지이용에서의 중금속 오염원단위 산정)

  • Kim, Cheol-Min;Lee, So-Young;Lee, Eun-Ju;Kim, Lee-Hyung
    • Journal of the Korean Society of Hazard Mitigation
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    • v.8 no.6
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    • pp.155-160
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    • 2008
  • The urban areas have various landuses such as residential, commercial, industrial and official purposes that are highly concerned with human activities. The other landuses are relating to vehicle activities, which are roads, parking lots, bridges, parks etc. The mainly using landuses by human activities are possessing three different areas that are buildings, parking lots/roads and landscapes. Of these areas, the buildings and landscapes can be classified as non-pollution areas. However, the parking lots or roads are classifying as the main pollution areas because of vehicle activities. Therefore, the landuses arising the nonpoint pollution during a storm in urban areas are roads and parking lots. The vehicles are emitting lots of nonpoint pollutants such as metals and particulate matters and it is impacting on water qualities and aqua-ecosystems nearby the city areas. Therefore, this research was conducted for characterizing the pollutant types and determining the EMCs (Event Mean Concentrations) and unit pollutant loads during a storm. The monitoring was performed on 9 locations such as highways, service area, tollgates, parking lot and bridges. All of the landuses selected for monitoring are concerned with transportation. The results can be effectively used to predict the pollutant loading before urban planning and to select the BMPs (Best Management Practices) for reducing the pollution.

Development of the Tentative Educational Objectives for the Nursing College (대학간호교육목표의 시안개발)

  • Lee Haw-Ja
    • The Journal of Korean Academic Society of Nursing Education
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    • v.1 no.1
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    • pp.32-45
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    • 1995
  • This thesis is a study to develop the tentative objectives and present the professional and courses for the nursing college. The conclusions conducted by the purpose of this study are as follows. First, on the basis of the concepts of the nursing and the view-points of nursing education, the tentative goals for the nursing education are set up as follows. 1. To understand human being's life, dignity and their physical, mental, and social aspects. 2. To understand the basic concepts and the principles of human sciences, social sciences, natural sciences, and medical sciences. To apply their knowledges to nursing practices. 3. To diagnose and assess the problems of individual, family and community in terms of nursing practice. To develop the ability of planning, negotiation, management, and evaluation for the nursing education. 4. To develop appropriate knowlege, attitudes, and skills to promote the clients' health and treat their illness. 5. To accomplish all tasks effectively as a trained and qualified professional nurse through the endless studies. Second, the nursing areas and courses for the nursing college in terms of validity, Importance, continuity, relationship, utility and appropriateness are listed as follows. 1. Fundamental courses of the nursing. (1) General courses communication human development, behavior science, biochemistry, microbiology, pharmacology (2) Medical courses physiology, anatomy, pathology 2. Basic courses in nursing (1) General nursing fundamental nursing, introduction of nursing, nursing history, nursing process, health education, health assessment, philosophy of nursing, nursing psychology (2) Maternal-Child nursing child-health nursing, child-disease nursing, adolescent nursing, obstetric nursing, post-partum nursing, gyneco-pathy nursing (3) Adult nursing adult health nursing, adult disease nursing I(fluid & electrotonic, shock, anoxia disorder), adult disease nursing II(nutrition-excretion disorder, sexual dysfunction), adult disease nursing III(sense-, control-, activity-, sleep disorder), adult disease nursing IV(operation, rehabilitation, emergency), gerontological nursing (4) Psychiatric nursing child-adolescent psychiatric nursing, adult psychiatric nursing, gerontological psychiatric nursing, spiritual nursing (5) Community health nursing community nursing, school nursing, industrial nursing, family nursing, nursing epidemiology 3. Nursing management and research skills (1) Nursing management nursing administration, nursing ethics, laws related to nursing (2) Research skills nursing statistics, nursing research methodology Finally, the principles of the statement of the specific objectives are the followings : 1. To state the specific objectives on the basis of the syllabus of each courses. 2. To match a content with a verb or gerund as the basic form of objectives. 3. To control the level of the objectives according to the rule 'the higher the level of a content, the lower the level of a verb or a gerund'. This rule applies in the reverse, as well. 4. To decide the number of the objectives in each course on the basis of the numbers of the syllabus and the level of its comprehensiveness, 5. To correct, supplement or eliminate the stated objectives by a professional or professional groups in that area.

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Regulatory Oversight of Nuclear Safety Culture and the Validation Study on the Oversight Model Components

  • Choi, Young Sung;Jung, Su Jin;Chung, Yun Hyung
    • Journal of the Ergonomics Society of Korea
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    • v.35 no.4
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    • pp.263-275
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    • 2016
  • Objective: This paper introduces the regulatory oversight approaches and issues to consider in the course of safety culture oversight model development in the nuclear field. Common understanding on regulatory oversight and present practices of international communities are briefly reviewed. The nuclear safety culture oversight model of Korea is explained focusing on the development of safety culture definition and components, and their basic meanings. Oversight components are identified to represent the multiple human and organizational elements which can affect and reinforce elements of defense in depth system for nuclear safety. Result of validation study on safety culture components is briefly introduced too. Finally, the results of the application of the model are presented to show its effectiveness and feasibility. Background: The oversight of nuclear licensee's safety culture has been an important regulatory issue in the international community of nuclear safety regulation. Concurrent with the significant events that started to occur in the early 2000s and that had implications about safety culture of the operating organizations, it has been natural for regulators to pay attention to appropriate methods and even philosophy for intervening the licensee's safety culture. Although safety culture has been emphasized for last 30 years as a prerequisite to ensure high level of nuclear safety, it has not been of regulatory scope and has a unique dilemma between external oversight and the voluntary nature of culture. Safety culture oversight is a new regulatory challenge that needs to be approached taking into consideration of the uncontrollable aspects of cultural changes and the impacts on licensee's safety culture. Although researchers and industrial practitioners still struggle with measuring, evaluating, managing and changing safety culture, it was recognized that efforts to observe and influence licensees' safety culture should not be delayed. Method: Safety culture components which regulatory oversight will have to focus on are developed by benchmarking the concept of physical barriers and introducing the defense in depth philosophy into organizational system. Therefore, this paper begins with review of international regulatory oversight approaches and issues associated with the regulatory oversight of safety culture, followed by the development of oversight model. The validity of the model was verified by statistical analysis with the survey result obtained from survey administration to NPP employees in Korea. The developed safety culture oversight model and components were used in the "safety culture inspection" activities of the Korean regulatory body. Results: The developed safety culture model was confirmed to be valid in terms of content, construct and criterion validity. And the actual applicability in the nuclear operating organization was verified after series of pilot "safety culture inspection" activities. Conclusion: The application of the nuclear safety culture oversight model to operating organization of NPPs showed promising results for regulatory tools required for the organizations to improve their safety culture. Application: The developed oversight model and components might be used in the inspection activities and regulatory oversight of NPP operating organization's safety culture.

An Information Management Strategy Over Entire Life Cycles of Hazardous Waste Streams (유해폐기물 생애 전주기 흐름 기반 정보 관리 전략)

  • Lee, Sang-hun;Kim, Jungeun
    • Clean Technology
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    • v.26 no.3
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    • pp.228-236
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    • 2020
  • Korea has an economy based on manufacturing industrial fields, which produce high amounts of hazardous wastes, in spite of few landfill candidates, and a significant concern for fine airborne particulates; therefore, traditional waste management is difficult to apply in this country. Moreover, waste collection and accumulation have recently been intensified by the waste import prohibitions or regulations in developing nations, the universalization of delivery services in Korea, and the global COVID-19 crisis. This study thus presents a domestic waste management strategy that aims to address the recent issues on waste. The contents of the strategy as the main results of the study include the (1) improvement of the compatibility of the classification codes between the domestic hazardous waste and the international ones such as those of the Basel Convention; (2) consideration of the mixed hazard indices to represent toxicity from low-content components such as rare earth metals often contained in electrical and electronic equipment waste; (3) management application based on risks throughout the life cycles of waste; (4) establishment of detailed material flow information of waste by integrating the Albaro system, Pollutant Release and Transfer Register (PRTR) system, and online trade databases; (5) real-time monitoring and prediction of the waste movement or discharge using positional sensors and geographic information systems, among others; and (6) selection and implementation of optimal treatment or recycling practices through Life Cycle Assessment (LCA) and clean technologies.

A Study On The Correlation Between Attitude Toward Engineering Science And Academic Accomplishment According To Brain Dominance Thinking Of Students In The Department Of Engineering (공대 학생들의 두뇌 우성 사고에 따른 공학태도 및 학업성취도와의 관계 연구)

  • Park, Ki-Moon;Lee, Kyu-Nyo;Choi, Yu-Hyun
    • 대한공업교육학회지
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    • v.35 no.2
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    • pp.124-139
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    • 2010
  • This study has its purpose of researching on the relevant variables which affect the attitude toward engineering science and brain dominance for the department of engineering students. The results of this study are as follows: First, the department of engineering students' attitude toward engineering science has shown the order of cognitive element (3.73), definitional element (3.05) and behavioral element (2.86), and in the actual context it is considered that it is necessary to establish a teaching-learning strategy which can reinforce the behavioral elements such as experiments and practices as well as can improve engineering-related cognitive ability. Second, the attitudes toward engineering science according to their brain dominance thinking (Type A: analyst, Type B: Administrator, Type C: Cooperator, and Type D: Jointer) have no significant difference, but the students of Type A who have the characteristics of 7 analyzing thinking have shown high academic accomplishment. Based on these results of study, it is necessary to make a change of the current teaching-learning stratery in accordance with the types of thinking of the students from the teaching-learning perspective. In particular, in order to develop the weak dominance properties and thinking type of individual learners, the change in teacher's recognition that the teacher's teaching-learning strategy and practice is important has to take precedence.

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Development of an Assembly-type Liquid Level Control Experimental Equipment and a Hands-on Activity Task for Vocational High School 'Chemical Process Maintenance Operation' Subject (특성화고 '화학공정유지운영' 교과를 위한 조립형 액위제어 실험장치 및 체험활동과제 개발)

  • Jung, Eun-Suk;Lee, Kyung Taek
    • 대한공업교육학회지
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    • v.45 no.2
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    • pp.1-20
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    • 2020
  • The purpose of this study is to develop an assembly-type liquid level control experimental equipment and a hands-on activity task that can be applied to the class so that students studying the chemical industry can easily understand the liquid level control. For this purpose, the content elements related to liquid level control in the chemical industry practice course of the 2015 revised curriculum was analyzed, a hands-on activity task with an assembly-type liquid level control experimental equipment was and developed. And then, expert verification was also performed and the hands-on activity task was applied to 19 students of S meister high school. The results obtained through this are as follows. First, the existing completion-type liquid level control experimental equipment was explored, and based on this, a new assembly-type liquid level control experimental equipment that can be assembled by students and used for practices was designed and manufactured. Second. by analyzing the contents of the NCS-based 'Chemical Process Maintenance Operation' practical course of the 2015 revised curriculum, learning contents related to level control were extracted. Among the contents related to the level control, the practice with understanding the process flow chart, manufacturing the level control experimental equipment, measuring the flow rate, and checking the level control phenomenon were conducted with the assembly-type liquid level control experimental equipment to systematically learn the level control.

A Study of the method about Improving engineer by YeGamChang creating mechanism (예술창조 매커니즘을 통한 창조적 공학인의 육성 방안 연구 -교육 사례를 중심으로-)

  • Kwon, Yong Rang;Lee, Kyung Hwan;Kim, Su Jeong
    • The Journal of Korean Institute for Practical Engineering Education
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    • v.3 no.2
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    • pp.11-17
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    • 2011
  • As a rapid rate of social change and competitive, paradigm of industry environment manufacturing products and services is shifted. Engineers design, develop, manufacture the products and services are strongly asked competency of different new creative practices. This means while industrial structure has been shifted from mass production to various allied production and social engineering based production, qualifications of engineers are required to individual creative competency as alternatives. In order to improve the competency, engineer become the creative people have ability to develop the professional knowledge competency and expand the competency to convergence the new product and services with sensing the life and social structure shift, human engineering, psychology, and emotion. For the competency, we develop the training program "improving convergence, creativity through Art." we intend that the program should be composed of creative engineering mechanism combined creative arts mechanism. It has been operated to the engineers for 17 weeks. we will discuss the program result and research direction and utilization in depth.

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A Survey on the Status of using Styrene in Korea (스티렌의 유통.사용 실태조사)

  • Cho, Hyung-Yoel;Cho, Sung-Hyun;Kim, Eun-A;Kim, Byung-Gyu;Park, Seung-hyun;Kang, Seong-Kyu
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.18 no.4
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    • pp.310-317
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    • 2008
  • The objective of the survey is to define and judge exposure profiles semi-qualitative data in high risk processes using styrene. The survey was conducted on 98 factories out of 229 factories based on data from periodic working environment monitoring for styrene. Styrene is widely utilized as a raw material for PS and co-polymers such as ABS, SAN, SBR, SBL, unsaturated polyester resins(UPR) and others. An approximate breakdown of styrene's markets in Korea is PS 30%, expandable PS 17%, ABS 33%, SAN 5%, SBL 4%, SBR 3%, UPR 1% and other 7%. Although UPR accounts for 1% of total amount of styrene, workers dealing with it are exposed to very high concentrations up to 64 ppm. Especially styrene is widely used in the laminating process of fiberglass reinforced plastics(FRP) manufacturing industry. The Applications using styrene are largely classified into two sections which are applied to styrene monomer(SM) and UPR. SM is utilized for a raw material of resins, surfactant and adhesive. UPR is employed for FRP and non-FRP. For SM control targets are mixing colors and packing in the gelcoat resins manufacturing industry(MI), for UPR control targets out of works using UPR are 1) laminating in the MI of plastics, automobile parts and boats, 2) mixing and packing in the SMC/BMC MI, 3) molding and cutting in the other specific plastics MI, 4) mixing and coating in artificial marble product MI, 5) dipping in the electric motors & transformers MI, 6) molding in the button MI, 7) painting in the musical instrument MI. Findings from the study have given the information for the high risk processes and working practices so that occupational health professionals could focus on targeted workplaces to prevent occupational diseases. It is also useful to develop a control strategies and specific controls for high risk processes and facilities using styrene.

A Case Study on the Violation of the WTO-TRIMs Agreement in the China - Focusing on the Auto Parts Case- (중국의 WTO.TRIMs 협정 위반 분쟁사례에 관한 연구 - 자동차 부품 사례를 중심으로 -)

  • Kim, Jong-Hun
    • International Commerce and Information Review
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    • v.14 no.1
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    • pp.221-246
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    • 2012
  • The purpose of this study aims to analyse the case on the violation of the Agreement on WTO-TRIMs in the China with auto parts case. The Agreement on Trade Related Investment Measures(TRIMs) are rules that apply to the domestic regulations, a country applies to foreign investors, often as part of an industrial policy. The agreement was agreed upon by all members of the WTO. The TRIMs Agreement bans any laws, policies or administrative regulations favouring domestic products. This includes government incentives to encourage corporations to use domestically made products as a way of creating or protecting local jobs. The Agreement on TRIMs is only one such restriction within the broader WTO regime. Policies such as local content requirements and trade balancing rules that have traditionally been used to both promote the interests of domestic industries and combat restrictive business practices are now banned. In many ways the Agreement on WTO-TRIMs is less significant than the WTO agreements on services, etc. The TRIMs Agreement does not involve any new rules or disciplines, referring only to the existing provisions under the GATT. However, by enforcing GATT provisions on 'national treatment', this short and simple agreement has had farreaching effects on auto parts, etc. Meanwhile, China has been members of the WTO late 2001, once the measures imposed high-rate tariff for import parts was intended to regulate importer of auto parts in order to avoid the high-rate tariff.

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