• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.331-340
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• 2009

This study is objected by suggesting rationalization method of management and maintenance cost for railway investment assessment. The estimate of rational benefit and cost are a work of vital importance to decide railway investment as preliminary feasibility investigation is institutionally reinforced since January 2007. In particular, railway management and maintenance cost have to be applied to realistic and detail cost as railway investment assessment guide. For example, types of railway, construction of new line, improvement of conventional line, double tracking, railway electrification. However, railway investment assessment is inconsistency because of estimating the railway management and maintenance cost using existing unrealistic management and maintenance cost. Therefore, this study is performed parametric analysis effecting on the railway management and maintenance cost considered new technique, enhanced facilities and improved standard. Also, it suggests the itemized standard management and maintenance cost. Finally, it will be helped to establish the base of railway investment through the rationalization method of management and maintenance cost.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2006년도 추계공동학술대회
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• pp.373-383
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• 2006

Logistics is one of the most important factors to manage a stream of materials in economic environment. Establishing effective logistics system needs to consider some constraints which are fluctuation of materials volume, a long distance between makers and consumers, one way logistics and small quantity batch production. It is estimated that Unit Load System should be a powerful method to cope with those problems. It helps to realize the key issues which are Standardization and Logistics Pool System The Material Unification of Logistics System is able to participate in all kinds of industries including manufacturing, distribution and logistics. This system has some merits which are a long distance transportation cost down, product recovery, and treatment in the unbalance of demand and supply caused by unstable materials volume. Four strategies of Material Logistics Model are Packing Rationalization, Logistics Pool System, JIT System application and establishing effective infrastructure. The Material Unification Of Logistics System based on Unit Load System achieves efficiency of logistics and largely decreases moving cost.

• 물과 미래
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• 제12권2호
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• pp.70-76
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• 1979

본 연구는 다목적댐 기본계획 입안에 있어서 노력과 시간을 가장 많이 소비하는 $\ulcorner$사업으로부터의 산출량 산정$\lrcorner$의 합리화를 연구대상으로 삼았다. 봉 논문에서 제안한 전산 program에 의하여 충주댐 최적계획 입안의 합리화를 이룩할 수 있었다. 본 방버은 충주댐과 유사한 타사업의 산출량산정에도 적용 가능하다.

• 수산해양교육연구
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• 제10권2호
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• pp.184-210
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• 1998

The set-net fishing is involved in the trap fishing method that intercepts the fishes migrating along the coast and induces them to be in the bag net stretched in advance. And this fishing also corresponds to the licensed fishing in fisheries law. Though its annual total production of around 50,000 to 70,000 M/T is less than in other fishery section, its price becomes higher because the fishes are sold in the live fish condition. Until recently, the set-net fishing is one of the preferred fisheries on account of its less operation expense and stably operating condition in a long term. In the meantime, the industrialization in Korea having been prospered along coastal area and the over fishing in terms of the powered and larger size fishing boat make the fishing ground environment worse yearly. In addition, its difficulty becomes more worse with issuing fishery product free import in July 1997; accordingly, the strategy for the set-net fishing through business rationalization should be considered. From the discussion of the sort of set-net, general present situation and operating actual state of set-net fishing, the improved methods for business rationalization in the present paper is proposed as follows: 1. to increase the fisheries resource through prevention of the marine contamination and purification of coastal area environment. 2. to save the labour cost through the improved the fishing gear. 3. to improve the fish quality through development of the process technology. 4. to increase the income of fishers through improvement of the distribution channels.

• 통상정보연구
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• 제1권2호
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• pp.1-24
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• 1999

전북업체가 EC 국제환경에서 국내외 물류 경쟁력을 적극적으로 강화하는데 필요한 적용 전략을 제안하였다. 본 연구에서 제시하고 있는 EC의 물류 적용 전략을 전북 기업이 효율적으로 활용한다면 국내외 물류 경쟁력을 강화하는데 충분한 효과를 얻을 수 있을 것으로 확신한다. 전북의 모든 산업분야 중에서 경영합리화 및 효율화를 이루지 못할 경우 국내외 기업들과의 경쟁에서 이겨내지 못하고 모든 시장을 타 기업에게 넘겨줘야 하는 위기에 직면하게 된다. 전북업체의 이러한 암담한 미래를 극복하기 위해서 기업의 경영혁신 및 합리화 도구로써 또한 물류의 국내외 경쟁력를 강화하는 수단으로써 EC의 도입 운용에 적극 대처해야만 한다. 본 연구는 EC 시대를 대비하여 전북업체의 물류 경쟁력의 강화를 위한 EC의 도입 운용전략에 대한 이해를 높이고 정보화시대 세계화시대의 국내외 물류 경쟁력 제고에 도움이 된다는 측면에서 연구의 중요성을 강조하고자 한다.

• 한국조경학회지
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• 제30권6호
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• pp.38-46
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• 2003

Perceived crowding is known as a necessary method to evaluate social carrying capacity in recreational settings. But according to the results of previous research, perceived crowding, use density, and satisfaction have shown weak and indirect correlations. The theory of visitors’ adjustment is one of several possible explanations for this poor relation. But the validity of the visitors’ adjustment theory has not been not inspected clearly. Therefore, the purposes of this study are to understand visitors’ adjustment theory and to examine visitors’ adjustment to the overuse of recreational settings. Study hypotheses were formulated through literature review and related to visitors’ adjustment in recreation density. Pour hypotheses were established and inspected with the case study, i.e., Rationalization : Visitors’ satisfaction isn't related to use density in recreation setting, 2) Product-shift : Preference norm is related to current use density, 3) Self-selection : Visitors’ satisfaction for the use level is generally high, and 4) Displacement : Norm interference is related to willingness to revisit. The case study was conducted during May and June,2001. According to the results of this survey, visitors adjust to overuse of recreation setting through rationalization and product shift (hypotheses l/2 acceptance). Current use density isn't related to visitors’ satisfaction and willingness to revisit (see table 3). And visitors’ preference norm is modified by situation (see table 4). Visitors’ satisfaction and willingness to revisit don't show a high correlation but moderately high (see table 5, hypothesis 3 acceptance). Differences between visitors’ preference norm and current use density is norm interference. Norm interference isn't related to willingness to revisit (see table 7). Therefore, the norm interference concept is not a useful method to explain visitors’ adjustment to the degree of overuse in a recreational setting (hypothesis 4 rejection). As for future directions, the following are proposed: 1) correctly understanding and reestablishing the visitor norm and norm interference concept, 2) introducing a composite research method to monitor visitors’ behavior and survey visitors’ attitudes and coping responses. These efforts would be helpful in the Planning and management of recreational settings to improve the quality of visitors’ experiences.

• 기술사
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• 제24권6호
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• pp.45-55
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• 1991

Recently Factory Saemaul Undong is stagnant and spirits of Self-helf, Diligence, Cooperation goes off the public in general our society. After the 1988 year, Factories have a sickely constitution of industrial structure for Saemaul spirits fading. So, it is now a thing of the past in the 1973~87 year's active Factory Saemaul Undong of Korea industrial rationalization movement. Come on the new age 1990's, it make a special study renew method and newly technique of Factory Saemaul Undong promoting for democratic new age.

• 산업경영시스템학회지
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• 제7권10호
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• pp.1-16
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• 1984

The purpose of this paper is to develop rational layout model for small and medium scale industry in Korea. The methodology of this paper is to light the importance of small and medium scale company. Moreover, to overcome the problem of layout in non-massing jobbing production shop this paper is proposed four techniques. So proposed layout model is obtained analytically in single, multiple facility location problem The result of this paper is as follows : First, alternatives to overcome abnormal layout in small and medium company are 1) GT (Group Technology) 2) SLP (Systematic Layout Planning) 3) OR (Operations Research) 4) Computer Second, in single facility location problem, Gradient method and square weighted average method are studied. Lastly in multiple facility location problem, heuristic method is obtained.

• 한국가스학회지
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• 제26권4호
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• pp.18-26
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• 2022

한국 정부는 열사용기자재(산업용 보일러)의 폭발, 화재에 대한 위험과 안전한 사용 및 관리를 고려하여 에너지이용합리화법에 따라 열사용 기자재(산업용 보일러) 검사를 수행하고 있다. 이 연구는 열사용기자재(산업용 보일러)에 대한 검사 결과 데이터를 통해 안전 및 성능 취약점을 도출하는데 목적이 있다. 이 연구는 2016년 1월부터 2020년 12월까지의 열사용기자재(산업용 보일러) 불합격 검사결과인 1,249건을 조사하였다. 연구방법은 불합격률 분산 수치가 높은 보일러 타입별 불합격 사유와 검사 방법별 불합격 사유를 통계적으로 분석하는 것이다. 안전 및 성능 취약점 카테고리는 18가지로 축약되었으며, 각 카데코리별 주요 불합격 원인은 검사원들의 의견을 추가 분석하여 제안하였다. 이 연구가 열사용기자재(산업용 보일러)의 안전 및 성능 취약점을 다루는데 기초 자료가 될 것으로 기대한다.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2004년도 추계 학술발표회 제16권2호
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• pp.765-768
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• 2004

This study reports the site application of the early strength development technology for form stripping earlier than normal state in the apartment construction. It is a method of framework rationalization and it needs the technology of early strength development concrete and 6-day cycle process. We applied the method to the apartment construction to reduce the floor construction period and to maximize the economical effect by reduction of the period of total construction. As a result, we confirmed the superior property of the early strength development of the concrete and reliable success of 6-day cycle process.