• International Journal of Aeronautical and Space Sciences
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• v.17 no.4
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• pp.565-578
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• 2016

A probabilistic based systems approach is addressed in this study for the reliability prediction of solid rocket motors (SRM). To achieve this goal, quantitative Failure Modes, Effects and Criticality Analysis (FMECA) approach is employed to determine the reliability of components, which are integrated into the Fault Tree Analysis (FTA) to obtain the system reliability. The quantitative FMECA is implemented by burden and capability approach when they are available. Otherwise, the semi-quantitative FMECA is taken using the failure rate handbook. Among the many failure modes in the SRM, four most important problems are chosen to illustrate the burden and capability approach, which are the rupture, fracture of the case, and leak due to the jointed bolt and O-ring seal failure. Four algorithms are employed to determine the failure probability of these problems, and compared with those by the Monte Carlo Simulation as well as the commercial code NESSUS for verification. Overall, the study offers a comprehensive treatment of the reliability practice for the SRM development, and may be useful across the wide range of propulsion systems in the aerospace community.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.8 no.1
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• pp.89-99
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• 1999

The automatic design of shell & tube type oil cooler can be used in real industrial environments. Since the automatic design system is intended to be used in small companies, it is designed to be operated well under environments of CAD package in the personal computer. It has adopted GUI in design system, and has employed DCl language. Design parameters to be considered in the design stage of shell and tube type oil cooler are type of oil cooler, outer diameter, thickness, length of tube, tube arrangement, tube pitch, flow rate, inlet and outlet temperature, physical properties, premissive pressure loss on both sides, type of baffle plate, baffle plate cutting ratio, clearance between baffle plate outer diameter and shell inner diameter and clearance between baffle plate holes. As a result, the automatic design system of shell & tube type oil cooler is constructed by the environment of CAD software using LISP. We have built database of design data for various kinds of shell & tube type oil coolers. The automatic design system have been assessed and compared with existing specification of design. Good agreement with Handbook of heat exchanger and design dta of real industrial environments has been found.

• Journal of Fashion Business
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• v.20 no.1
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• pp.127-141
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• 2016

Korea traditional dresses are making news everyday through popular media and a number of exhibitions and fashion shows that have been held as a way to activate the use of the hanbok. This study intends to examine the current status of handbook brands and analyze the aesthetic characteristics of the hanbok. This study defined the terms related with the hanbok and examined the chronological changes in the hanbok through a literature review, an examination of the aesthetic characteristics of Korean traditional clothing, and an analysis of the aesthetic characteristics by dividing currently available hanbok brands in to the traditional hanbok. According to the results of the study, hanbok brands were divided into Traditional Hanbok, Life Hanbok, and New Hanbok. The Traditional Hanbok brands represented traditional beauty, the beauty of formality, symbolic beauty, and the beauty of nature. The Life Hanbok brands represented symbolic beauty, natural beauty, the beauty of blending, and the proportional beauty. The New Hanbok brands represented natural beauty, unproportaional beauty, the beauty of line, and the beauty of moderation. Therefore the New Hanboks gave changes to the traditional clothing and the unique clothing of our nation. Its formative elements coexist according to their characteristics.

• The Korean Journal of Mycology
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• v.26 no.2 s.85
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• pp.211-229
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• 1998

To study the species diversity of the genus Boletellus in Korea, 56 specimens were collected from 1982 to 1996 at 20 locations including Odaesan. Collected specimens were observed and seven species among them were identified and described by observing macroscopic and microscopic characters, two of which were confirmed new to Korea: Boletellus chrysenteroides (Snell) Snell. Boletellus fallax Corner. Seven species were described here: Boletellus chrysenteroides (Snell) Snell, B. elatus Nagasawa, B. emodensis (Berk.) Singer, B. fallax Corner, B. obscurecoccineus $(V{\"{o}}hn)$ Singer, B. russellii (Frost) Gilbert, B. shichianus (Teng & Ling) Teng.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.21
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• pp.9165-9170
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• 2014

Purpose: This study evaluated the effect of an Educational Program on Palliative Care for MPM for Nurses in Japan. Program: The 5-h program consisted of lectures and care planning group work. Materials and Methods: This study used a pretest-posttest design with a single cohort of nurses and included a Difficulties in Palliative Care for Patients with MPM (DPCMPM) Scale with 15 items. The pre- and posttest scores were compared using a t-test. Results: We included 27 female nurses with a mean of 14.4 years of nursing experience. In 12 of 15 DPCMPM items, the posttest difficulty scores were lower than the pretest scores. Participants highly evaluated the program for validity, clarity, clinical usefulness, and the facilitators. The Palliative Care for MPM Handbook for Nurses was developed as an educational tool for clinical settings. Conclusions: The Educational Program on Palliative Care for MPM for Nurses was effective in reducing nursing difficulties.

• 방재와보험
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• s.46
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• pp.73-75
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• 1990

화재로 인한 인명 및 재산상의 손실을 예방하고 신속한 재해복구와 인명피해에 대한 적정한 보상을 하게 함으로써 국민생활의 안정에 기여하게 함을 목적으로 1973년 2월 6일 법률 제 2482호로 공포된 "화재로 인한 재해보상과 보험가입에 관한 법률"에 의거 서울특별시, 5개직할시 및 전주시에 소재한 특수건물(4층 이상건물, 국유건물, 교육시설, 백화점, 시장, 의료시설, 흥행장, 숙박업소, 송장, 송동주택 등) 소유자는 "신체손해배생 특약부 화재보험" 에 의무적으로 가입토록 되어있다. 이밖에도 국가저액적으로 또는 국민 복지증진을 위하여 많은 종류의 의무보험을 실시하고 있으며, 특히 위 법률과 유사한 사례로 국내에는 "항공운송 사업진흥법" (제7조), "산림법" (제113조)에 보험가입에 대한 의무규정이 있다. 일본 동경해상화재보험(주)에서 발간한 "손해보험과 시장"과 영국에서 발간한 "Handbook of risk management"에 의하면 거의 대부분의 국가에서 책임보험등 의무보험제도를 실시하고있으며, 특히 스위스, 서독, 벨기에, 아이슬란드, 브라질에서는 특수건물 화재보험과 유사하게 건물에 대한 의무보험제도를 실시하고 있는데 이들 국가중 스위스에서는 이미 180여년전부터 26개 주 중 19개 주에서 모든 건물에 대하여 화재보험 가입을 의무화하고 있으며, 그 수용동산까지도 화재보험에 부부토록 강제화되어 있는 주도 있다. 한편 서독에서도 오래전부터 건물의 화재보험 가입을 의무화하고 있는 주가 많으며, 의무화를 실히하고 있지 않은 주도 보험가입은 임의적이나 가입시에는 반드시 주가 지정한 공영건물보험기관에 가입토록 하는 독접형태로 운영되고 있다. 따라서 외국의 의무보험 실태를 보다 구체적으로 파악해 보기 위하여 스위스 바젤주(Basel- Stadt- Kantons)의 건물보험법을 소개하고자 한다.

• Korean Journal of Health Education and Promotion
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• v.27 no.3
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• pp.59-66
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• 2010

Objectives: This paper aims to describe a public health planning model, Mobilizing for Action through Planning and Partnership(MAPP), and to discuss its application in Korea with a specific focus on the Local Public Health System (LPHS) component of MAPP. Methods: Literature content review was performed on research papers on MAPP development and application, MAPP handbook and guides, the guidelines for the 5th Phase Community Health Plan, and a research report on public health center evaluation system. Results: MAPP has been applied to public health planning (the 5th Phase Community Health Plan) and a performance evaluation system for public health center in Korea. The current application is limited to the early stages of the MAPP. Limited or partial application affects the integrity of the model. Follow-through should be strengthened especially for evaluation planning. Conclusion: Systems thinking approaches should be considered for the development of LPHS and strengthening logical and practical linkage between planning and evaluation of community health planning.

• Journal of KIBIM
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• v.4 no.4
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• pp.1-12
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• 2014

As interest for visualization and real time processing of construction management information was heightened recently, a diversity of management tools have been developed and corresponding systems also have been changed. In the case of BIM(Building Information Modeling) which is being spotlighted as such kind of management tool, its outcome such as technical innovation and time saving through overseas success case, reducing effect of unnecessary work, and so forth has continuously been established. The BIM in which various information related with life cycle of project are managed with the base of 3D object is useful as an information management tool of construction project which becomes complex and large in its scale. The aim of this paper is analysis or reliability on BIM design for expressway. To solve these issues, this study analyzes the design document, road design handbook, guide. Also this paper performed analysis of reliability 2D vs. BIM quantity calculation. This pilot projects "BIM design at Daegu expressway Lot No.5" lays the foundation for future work on BIM based civil engineering design.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.35 no.5
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• pp.446-451
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• 2007

Since the introduction of advanced composite materials for use in aircraft, the material qualification has been a costly burden to the small airframe manufacturer. For each manufacturer, extensive qualification testing has often been performed to develop the base material properties and allowables at operating environmental conditions, regardless of whether this material system had been previously certificated by other manufacturers. In recent years, NASA, industry, and the FAA have worked together to develop a cost-effective method of qualifying composite material systems by the sharing of a central material qualification database. In this paper, the new methodology of composite material qualification is presented and material allowable of 350°F carbon fiber/epoxy composite material produced domestically is determined with this methodology.

• Journal of Applied Reliability
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• v.11 no.2
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• pp.141-149
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• 2011

Environment Conversion Factors, which are stipulated in System Reliability Toolkit, have a lot of advantages once applied in a reliability data handbook such as NPRD-95, during the process of reliability prediction. However, the factors have a restriction in their applications because they don't deal with a few environments, e.g., Missile Launch (ML). In this study, environment factors of various components from MIL-HDBK-217F were analyzed to address this problem. Statistical computations showed that converting from Airborne Rotary Wing (ARW) to Missile Launch (ML) was the most coherent by comparing coefficient of determination. In addition, conversion factors from System Reliability Toolkit and those from the statistical calculations were evaluated in terms of their similarities.