• 한국안전학회지
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• 제18권4호
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• pp.105-109
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• 2003

Structure surfaces damaged due to many causes are repaired by several special mortars. But wide studies about the permeability of these mortars were rarely conducted. In this study compressive strength test, flexural strength test and bond strength test of these mortars were conducted. And chloride ion penetration test was also conducted to explore the permeability charcteristics of selected repair mortars. This test was carried out following the standard ASTM C1202-91. Colouriemtric penetration depth can be drawn from these test results using a relationship equation between colourimetric penetration depth and charge passed which C. Andrade suggested. Diffusion coefficient can be calculated by CTH rapid method. To the end, the present study can provide a firm base for the application of repair mortars to concrete structures.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제49권6호
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• pp.341-345
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• 2000

This paper analysed the induced electric field of human body under the 765 kV transmission line considering permittivity and conductivity. As permittivity of human body is very high as 106 at 60 Hz, special numerical computation technique is Surface Charge Method(SCM) for composite media with extremely different properties is applied to reduce calculation error of induced electric field inside the human body.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1993년도 하계학술대회 논문집 A
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• pp.473-475
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• 1993

Premium Service is the next service to be developed after the Freephone Service and Credit Call Service which has currently been developed and is being now tested. Premium Service is a service which provide information on a telephone line. The calls are charged with a special rate which includes service and call charge. Public telecommunication operator performs charging and accounting from the service user for the service provider and for every service provided subtracts the commission from the part of service revenue and gives the rest back to the service provider. This paper is about the study on the implementation of the Premium Service in the Service Switching Point.

• Journal of Electrical Engineering and Technology
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• 제8권4호
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• pp.787-798
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• 2013

This paper proposes a special power circuit topology and its corresponding control strategy for an energy recovery power accumulator battery pack testing system (PABPTS), which is particularly used in electric vehicles. Firstly, operation principle and related parameter design for the system are illustrated. Secondly, control strategy of the composite power converter for PABPTS is analyzed in detail. The improved scheme includes a high accuracy charge and discharge current closed loop. active power reference for the grid-side inverter is provided by the result of multiplication between battery pack terminal voltage and test current. Simulation and experimental results demonstrate that the proposed scheme could not only satisfy the requirements for PABPTS with wide-range current test, but also could recover the discharging energy to the power grid with high efficiency.

• 재활복지
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• 제22권3호
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• pp.93-114
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• 2018

이 연구는 평생교육기관으로서 장애인복지관의 문화예술교육 담당자가 지각하는 관리자의 리더십이 직무태도 및 운영성과에 어떤 영향을 미치는지 알아보는 데 목적이 있다. 연구를 위해 전국 장애인 복지관 문화예술교육 담당자 188명의 설문 응답 자료를 분석하였으며, 연구의 주요 결과는 다음과 같다. 첫째, 장애인복지관 문화예술교육 담당자가 인식한 관리자의 리더십이 직무태도에 미치는 영향을 분석한 결과, 변혁적 리더십의 하위요인인 지적자극과 거래적 리더십의 하위요인인 조건적 보상이 직무만족에, 변혁적 리더십의 하위요인인 지적자극과 거래적 리더십의 하위요인인 예외적 관리가 조직몰입에 정(+)적 영향을 미치는 것으로 나타났다. 둘째, 장애인복지관 문화예술교육 담당자가 인식한 관리자의 리더십이 운영성과에 미치는 영향을 분석한 결과, 변혁적 리더십의 하위요인인 지적자극이 서비스 질에, 변혁적 리더십의 하위요인인 지적자극과 거래적 리더십의 하위요인인 예외적 관리가 재무적 성과에 정(+)적 영향을 미치는 것으로 나타났다. 따라서 장애인복지관 문화예술교육 담당자의 직무태도 및 운영성과를 제고하기 위해 관리자는 조직이 달성해야 할 목표에 대한 명확하고 구체적인 기준을 제시하고, 이를 달성했을 경우에는 금전적 보상 등을 제시하여 동기를 부여할 필요가 있으며, 담당자의 합리적인 사고, 문제해결을 위한 지속적인 노력을 유발하는 리더십을 발해해야 할 것이다.

• 시큐리티연구
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• 제50호
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• pp.91-115
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• 2017

최근 중대한 테러범죄를 범한 자들의 특징은 특정 테러조직(ex. IS)의 직접적 지휘체계에 속한 것이 아니라, 테러조직의 프로파간다에 감화되거나, 기존 사회에서 적응하지 못한 자들이 IS를 비롯한 국제테러조직의 느슨한 형태의 지휘하에서 테러범죄를 범했다는 점이다. 또한 테러범죄자가 테러범죄를 범하려는 경우 취약한 연성목표물에 너무나도 쉽게 접근할 수 있음은 이미 널리 알려진 사실이다. 이에 본 연구에서는 지하철에서의 테러대응 개선방안을 제시하고자 하였다. 우선적으로 지하철 내에서 테러예방은 사전 예방의 법리가 중요함에도 불구하고 지하철 경찰대 및 철도특별사법경찰관만으로 이를 담당하기에는 물리적 한계가 있어 개선방안이 필요함을 확인했지만, 일각에서 제시되는 바와 같이 지하철 보안관에게 사법경찰권을 부여하는 것은 타당하지 않고 사법적 행정적 통제가 이루어지는 독립 보안부서를 설치하는 방안에 대해 검토하였다. 또한 지하철 운영기관에서 핵심 보직자에 대한 채용 배속시 신원조사를 통한 지하철의 안전을 제고하는 방안에 대해 검토했다. 더 나아가 테러방지법상 테러예방을 위해 설치되는 전담조직에 공항, 항만 등처럼 지하철 테러의 특성을 고려할 수 있는 테러대책 협의회의 신설이 필요함을 확인하였다. 마지막으로 테러대응 기관의 권한 강화는 필연적으로 국민의 기본권을 제한할 우려가 있기 때문에 이들의 활동에 비례성의 원칙을 준수해야 함을 다시 한 번 강조하였다.

• 한국산학기술학회논문지
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• 제19권5호
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• pp.470-479
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• 2018

본 연구는 장애유아담당 보육교사를 대상으로 긍정심리자본, 원장 및 동료교사의 사회적 지지, 행복감 간의 관계를 분석하고 긍정심리자본과 행복감 관계에서 원장 및 동료교사의 사회적 지지의 매개효과를 분석하는데 목적을 둔 실증적 조사연구이다. 본 연구의 목적과 문제를 해결하기 위해 경기 지역 보육교사 205명을 연구 대상으로 선정하여 설문조사를 수행하였다. 수집된 설문 자료는 SPSS 프로그램을 이용하여 빈도분석과 기술통계, 신뢰도 분석, 상관관계 및 회귀분석을 실시하였다. 분석을 통해 나타난 본 연구의 결론을 제시하면 다음과 같다. 첫째, 긍정심리자본, 사회적 지지, 행복감 간에는 유의한 정적 상관관계가 나타났고, 긍정심리자본과 원장 및 동료교사의 사회적 지지는 보육교사 행복감에 긍정적인 영향을 미치는 것으로 나타났다. 둘째, 긍정심리자본과 행복감 관계에서 원장의 사회적 지지, 동료교사의 사회적 지지는 부분매개효과가 있는 것으로 나타났다. 이는 보육교사의 행복감 증진을 위해 긍정심리자본과 원장 및 동료교사의 사회적 지지는 중요한 역할을 할 수 있음을 시사하고 있어 장애유아담당 보육교사의 행복감 증진을 위해 긍정심리자본을 구축하고 사회적 지지를 함양하는 다양한 프로그램을 개발하여 적용할 필요가 있을 것이다.

• 한국항만학회지
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• 제13권2호
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• pp.313-322
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• 1999

Pusan the principal port of South Korea, has opened its door since 1876. Currently, the four-stage port construction project is under way to handle ever-growing marine transportation volume. While the port unloading capabilities are increasing the infrastructure to deal with all the transportation volume failed to catch up with them. Accordingly the city had to suffer from worst traffic congestion on due to the increasing container traffic volume causing logistical costs to rise. This study was designed to inspect the enforcement of infrastructure construction plan and suggest systematical and effective ways to improve the plan. The study focused on :\circled1The decision-making procedure, \circled2Financial resource for the plan, \circled3Effectiveness of the project enforcement, and \circled4Who will be in charge of the project. As a result from the study, these followings were suggested to improve the plan. First, Pusan Port Infrastructure consisting of (Inter-city Free way, Belt Highway and Outer Highway) should be immediately legally-regulation project. Second, the method to finance the project should be deter-mined and investment consultation among the central government the city government and private sector should be also made. Measures to make the central government budget allocation for the project mandatory should be discussed. Third, Effectiveness of the project can be doubled by gradually or partialyl opening the routes based on long-term or short-term operating plans. Fourth, The organizer of the project should be appointed, or a special task-force team in charge of the plan can be formed.

• 한국진공학회:학술대회논문집
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• 한국진공학회 1998년도 제14회 학술발표회 논문개요집
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• pp.17-17
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• 1998

Synchrotron radiation is produced when charged particles moving with relativistic velocities a are accelerated - for example, deflected by the bending magnets which guide the electron or p positrons in circular accelerators or storage rings. By using special focusing magnetic lattices i in the particle accelerators it is possible to make the dimensions of the particle beam very small with a hi맹 charge density which results in a light source with high b디lIiance. Synchrotron light h has important properties which make it ideal for a wide range of investigations in surface s science. The fact that the spectrum of electromagnetic radiation emitted in a bending magnet e extends in a continuum from the 얹r infra red region to hard x-rays means that it is id않I for a v variety of spectroscopic studies. Since there are no convenient lasers, or other really bright l light sources, in the vacuum ultraviolet and soft x-ray re.밍ons the development of synchrotron r radiation has enabled enormous advances to be made in this di펌C비t spectr따 re밍on. P Polarization-dependent measurements, for ex없nple ellipsometry or circular dichroism studies a are possible because the radiation has a well-defined polarization - linear in the plane of orbit w with additional right-circular, or left-circular, components for emission an생es above, or below, t the horizontal, respectively. Since the synchrotron light is emitted from a bunch of charge c circulating in a ring the light is emitted with a well-defined time structure with a short flash of l light every time a bunch passes an exit port. The time structure depends on the size of the ring a and the number and sequence of filling of the bunches. A pulsed light source enables time¬r resolved studies to be performed which provide direct information on the lifetimes and decay m modes of excited states and in addition opens up the possibility of using time of flight t techniques for spectroscopic studies. The fact that synchrotron radiation is produced in a clean u ultrahi야 vacuum environment is of gr않t importance for surce science studies. The current t비rd generation synchrotron light sources provide exceptionally high baliance and stability a and open up possibilities for experiments which would have been inconceivable only a short time ago.

• 간호행정학회지
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• 제1권2호
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• pp.372-387
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• 1995

One-hundred eighty four medical doctors and 349 nurses out of 6 university hospitals and 1 general hospital were surveyed from Mar. 3, to Mar. 31, 1995, in order to appreciate the extent of their understandings on the clinical nurse specialist system. The difference was analyzed by the subjects' age, their position and department, the expected benefits of the system. the assigned department, the position and qualification, the required special educational organization and program, and the extent of autonomy of the function of clinical nurse specialists and the special nursing field. The results were as follows ; 1. The perception about the expected benefits of the introduction of clinical nurse specialist system was significantly different among the age groups of medical doctors, and the age group of 40s among them showed the most positive perception. 2. The extent of acquaintance with clinical nurse specialist was the higher in the older age groups of respondent nurses. Meanwhile, the experience of participation with clinical nurse specialists was the more in the older age group of medical doctors. 3. The opinion about the required position of clinical nurse specialists was significantly different by the age and position of the respondent nurses. The rank of head nurse was suggested by the respondent nurses of older age and higher positon, while the level of in-charge nurse was suggested by the staff nurses. Also, the duration of clinical experience required of clinical nurse specialists was the most frequently responded as 6 to 10 years by nurses, as 2 to 5 years by medical doctors. 4. The degree of educational background required of clinical nurse specialists was differently responded by the various position of medical doctors and nurses. Of the medical doctors, professors frequently responded bachelor degree and medical residents frequently responded master degree as the required educational background. Of the nurses, nursing administrators more frequently responded that master degree was required of clinical nurse specialists than staff nurses and clinical nurse specialists did. 5. The extent of acquaintance with clinical nurse specialist system was different among the various department of medical doctors, which was the highest in the doctors of psychiatry, internal medicine and pediatrics, respectively. The doctors of surgery were the least acquainted of clinical nurse specialist. 6. The nurses of special parts, of surgery and of obstetrics & pediatrics responded more frequently that clinical nurse specialists should belong to the nursing department than the nurses of internal medicine and of others did. 7. The Special parts that necessitate clinical nurse specialists were responded to be the more important by nurses than by medical doctors. Clinical nurse specialists were responded to be the more necessary in the parts of diabetics, oncology, pyschiatry, dialysis, organ transplantation, intensive care, and in cardiovascular part. They were responded to be the less important in the parts of intravenous therapy, computer informatics, nursing administration, the improvement of nursing quality.