• Proceedings of the Korean Powder Metallurgy Institute Conference
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• 2002.04b
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• pp.13-13
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• 2002

분말사출성형(PIM, Powder Injection Molding) 기술은 금속, 초경 또는 세라믹 등과 같은 소결 가능한 분말을 유기결합체와 혼압하고 이를 기존의 사출성형법을 이용하여 일정한 형상으로 성형한 다음 결합제 제거정 공정을 거처 최종 고온 소결함으로써 3차원의 복잡한 형상의 부품을 후가공 없이 정밀하게 대량 생산 할 수 있는 신분말 성형 기술이다.기계 , 항공,전자정보,반도체,의료 등의 제반 분야에서 산업 및 생활기기들이 초소형화, 초정밀, 및 고기능호 되어 감에 따라 부품 또한 일반 공정에서 제조하기 힘든 크기로 초소형화 되고, 형상이 더욱 복잡화 되며 우수한 기계적 특성 또한 요구되고 있다. 세계 분말 사출성 ; 산업은 이러한 산업적 요구에 맞춰 급격히 발전함과 동싱에 시장 또한 급격히 성장되고 있다. 그러나 국내의 PIM 산업은 88년 기술이 도입된 이후 세계 PIM 산업의 성장 속도를 따라가지 못하고 있는 실정이다. 이번 발표에서 국내의 PIM 산업 현황을 조사하여 국내 시장 규모. 성장 속도, 주요 PIM업체의 소개할 예정이다. 그리고 국내 PIM 산업의 상대적인 저성장 요인을 분석하고 향후 국내 PIM 업계의 발전 방안을 제시할 예정이다. 예정이다.

• The Korean Journal of Applied Statistics
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• v.21 no.4
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• pp.675-694
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• 2008

We propose a new sampling design for the Korean Livestock Production Cost Survey. In this sampling design, the survey population is derived from the 2005’s agricultural census of Korea. And coefficient of variation(CV) is estimated from the current livestock production cost survey data, and the estimated CV’s are used to find the optimal sample size which satisfies the predetermined precision of estimation. In order to save the enumeration cost, the agriculture enumeration districts are used as a primary sampling unit(psu). Final sample is selected by double sampling. Also, we propose the estimator which is able to reflect the change of the population of livestock production households.

• Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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• v.7 no.4
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• pp.243-253
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• 2009

In this study, research status on radionuclide and colloid migration in underground research facilities including KURT (KAERI Underground Research Tunnel) was investigated. Some foreign underground research facilities constructed in crystalline rock formations such as granite were briefly introduced and compared. International joint researches concerned with the radionuclide and colloid migration were investigated particularly for the Grimsel Test Site (GTS) and $\ddot{A}$sp$\ddot{o}$ Hard Rock Laboratory by analyzing major research items, on-going research projects, and future plans.

• Proceedings of the Korea Information Processing Society Conference
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• 2009.04a
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• pp.265-267
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• 2009

디지털 제품 구매자는 일반적으로 온라인을 통하여 제품 웹사이트에서 제품의 특징이나 사용 후기를 충분히 보고 제품을 구입한다. 그리고 제품을 구입 후에 사용자는 온라인에서 제품의 매뉴얼을 통하여 익힌다. 이러한 과정에서 본 연구자는 사용자들의 온라인상에서 제품 구매 전, 후에서 문제점을 발견하고 확실히 어떠한 요구사항이 존재할 것이라는 의문을 가졌다. 따라서 다양한 일반인 연령대를 구성한 340명을 대상으로 디지털 제품의 전달 매체 사용에 대한 온라인 설문조사를 실시하였다. 설문문항 내용에서 우선적 대안으로 예상한 것들은 '데스크탑 가상현실'과 '멀티미디어 동영상' 매체들이다. 그리고 사용자들이 이것들을 새로운 매체로서 가장 요구하는 사항일 것이라는 추측을 하고 현황을 파악한다. 최종적으로는 사용자가 요구하는 제품에서 매체의 기능과 만족도를 조사하고 개선점을 파악하며 문제점에 대한 해결 대안의 기초 자료로서 제시하고자 한다.

• Journal of Environmental Impact Assessment
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• v.28 no.3
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• pp.312-331
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• 2019

An offshore waste disposal facility refers to a landfill site for final landfilling of stabilized inorganic solid waste such as land and marine waste incineration materials, and the aim of such a facility is to solve the problem of insufficient waste disposal space on land and create and develop environmentally friendly marine spaces. The purpose of this study is to prepare guidelines for the construction of offshore waste disposal facilities, which reflect the need and importance of paying sufficient heed to environmental considerations from the initial stage of the project, in order to investigate, predict, and assess how such guidelines will affect the marine environment in relation to the construction of offshore waste disposal facilities, with the goal of minimizing the impact on and damage to the environment. For the purpose of this research, guidelines focusing on the construction of offshore waste disposal facilities were derived through an analysis of domestic cases and similar foreign cases and an assessment of their level of compliance with existing EIA guidelines through the operation of a discussion forum. In order to review the EIA report on similar cases in Korea, 17 EIA documents (2005~2016) for dredged soil dumping areas and ash ponds of thermal power plants were analyzed to investigate the status of marine organisms, marine physics, marine water quality, and marine sediment and to understand what types of problems can occur and what improvement measures can be taken. The purpose of these guidelines were to minimize damage to the marine environment by promoting EIA protocols in accordance with scientific and systematic procedures, to reduce the consultation period related to projects, to resolve social conflicts, and to reduce economic costs.

• Journal of Digital Convergence
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• v.17 no.12
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• pp.489-501
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• 2019

This study proposes a sex crime prevention application for single female households. After analyzing the current status of single-person households, crime status in Gimhae, and existing sex crime applications, 15 women in their 20s and 30s living alone were surveyed by users, including cultural probes and contextual inquiry. Insight obtained through user research using the service design tool confirmed that it has a positive effect on user satisfaction in the production of the application. Based on the results of usability assessment, it is a follow-up research task to propose and commercialize actual production outputs for the prevention of sex crimes against single-person household women by further developing the sex crime prevention mobile applications that are the output of this study.

• Journal of agricultural medicine and community health
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• v.25 no.2
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• pp.343-352
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• 2000

한국의 농촌 보건의료 문제를 해결 하기위하여 일차보건의료가 도입되었으며 일차보건의료에서 핵심적인 역할을 수행하고 있는 보건진료원의 활동을 분석하였다. 분석 목적은 보건진료원의 일반현황과 보건진료원 활동에 대한 구체적인 분석을 통하여 활동개선 방안을 제시하는데있다. 분석방법은 사회조사 방법을 적용하였으며 조사는 1998년 7월과 11월기간에 구조화된 설문지를 보건진료원 전원에게 송부하여 스스로 작성하게 하였다. 1880명의 보건진료원을 대상으로 설문지를 배포하였으며, 1663명의 응답자가 작성한 설문지가 최종분석되었으므로 분석율은 88.5%였다. 분석결과 보건진료원의 일반현황으로 광역사의 보건진료원 평균 연령은 39.7세이며 시지역 보건진료원의 연령이 군지역보다 높았으며 통계적으로도 유의한 차이가 있었다. 총근무기간도 시지역의 보건진료원의 12.4년-13.6년으로 농촌지역보다 걸었으며 통계적으로도 유의한 차이가 있었다. 보건진료원의 평균 관할 인구수는 901명이었다. 보건진료소 관할지역의 노인인구 및 만성질환자의 분포가 매우 높았다. 보건진료소로부터 민간의료기관이 위치한 거리는 시지역 (7.1-11.3km) 보다 농촌지역이 12.1km로서 지리적 접근성이 시지역보다 낫은 것으로 나타났다. 활동건수분석결과 월평균 가정방문수는 평균 47.8건, 일평균 내소자수는 14.1건 및 일평균 전화상담은 5.2건으로 나타났다. 연령별 활동수준은 40세이상이 4세 이하보다 월평균 가정방문수와 일평균 내소자수가 많았으며 통계적요로도 유의한 차이가 있었다. 경력이 많을수록 일평균가정 방문수 및 전화상담 건수가 많았으며 통계적으로 유의한 차이가 있었다. 근무조건에 대한 만족도는 80%정도로 높았다. 연구결과 보건진료원의 활동지역내 노인인구 및 만성질환자의 비율이 높고 민간의료기관의 지리적 접근성도 낮고, 관할인구규모가 적어서 인구규모를 늘리고 노인 및 만성질환자 건강관리 프로그램의 개발이 더욱 요구되며 농촌지역주민의 건강관리자로서 보건진료원의 활동을 강화할 필요가 있다.

• Journal of Information Management
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• v.35 no.2
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• pp.1-40
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• 2004

Theses and dissertations are works embodying results of original research on a subject and substantiating a particular point of view by usually graduate students, as a degree requirement. Most theses and dissertations are not controlled by commercial publishing interests, and thus are not obtained in book-form by most libraries. Due to their lack of physical and ready availability and information about the contents, theses and dissertations have been extremely underutilized sources of information without distinction of nations. The goal of this paper is to provide the current informations on the distribution and management systems of theses and dissertations in Foreign and Korea. The findings of this study will provide the basis for developing an standardized management model of theses and dissertations that meets the needs of researchers, students, and librarians in Korea.

• Journal of vocational education research
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• v.30 no.4
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• pp.143-159
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• 2011

The purpose of this study is to develop and validate Inventory of Peer Relation for middle and high school students. First of all, in Study 1, 113 preliminary test questions were developed after reviewing of precedent studies in order to develop the Inventory of Peer Relation for Middle and High School Students. In Study 2, for the factor analysis, the survey was conducted for 600 students in three middle schools and three high schools in Busan to develop a final test, and finally 42 questions of them were selected. In Study 3, correlation analysis with another two inventories of peer relation was conducted to validate the developed Inventory of Peer Relation. The Inventory of Peer Relation developed through this study can be said reliable and valid. We made some suggestions for future studies.

• Progress in Medical Physics
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• v.26 no.3
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• pp.185-191
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• 2015

As radiation therapy is one of three major cancer treatment methods, many cancer patients get radiation therapy. Because of the invisible and scattering characteristics of radiation, it is impossible to identify the quality and the amount of radiation and secondary cancer could be induced by scattered radiation. Because of advanced technique of radiation therapy and the reasons mentioned above, quality assurance of radiotherapy machine should be performed completely. International organizations such as International Atomic Energy Agency (IAEA), American Association of Physicists in Medicine (AAPM) suggest report of quality assurance to recommend united method of radiotherapy machine quality assurance. Domestic society of medical physics, however, is too small to make such a report, domestic hospitals selectively choose some of contents in global suggestions. As there are no suggestions for domestic hospitals and global suggestions are being updated, we did a survey about quality assurance for radiotherapy machine. The questionnaire is composed of possession of radiotherapy machine, items performed for quality assurance and manpower, etc. 37 of 72 hospitals answered to survey. These results could be used for making domestic standard quality assurance procedure.