• 경영과정보연구
• /
• 제34권1호
• /
• pp.211-225
• /
• 2015

본 연구의 목적은 부실기업에서 회생과정을 거쳐 정상기업으로 전환된 회생기업을 대상으로 기업부실 원인과 기업이 선택하는 회생전략 사이의 관련성을 확인하고, 기업이 추구하는 회생전략에 따라 회생성과가 어떻게 달라지는지를 확인하는 데 있다. 국내 상장된 제조기업 중 2000년부터 2012년까지 법원에 법정관리 및 화의신청을 한 기업과 워크아웃 기업중 기업회생에 성공한 113개 기업을 대상으로 설문조사를 실시하였고 회수된 55개 설문과 공시자료를 바탕으로 다중회귀모형에 의해 실증 분석한 결과를 요약하면 다음과 같다. 먼저, 내부부실원인은 자산감축과 비용절감, 즉 효율성제고전략에 긍정적인 영향을 미치는 것으로 나타났고, 반대로 외부부실원인은 수익창출전략(제품/서비스감축, 제품/서비스확대)에 긍정적인 영향을 미치는 것으로 나타났다. 다음으로, 기업이 추구하는 회생전략에 따라 회생성과가 달라지는 지를 실증 분석한 결과, 효율성제고전략(자산감축과 비용절감)은 부채비율감소에 긍정적인 영향을 미치고, 반대로 수익창출전략(제품/서비스감축과 제품/서비스확대)은 매출액증가율에 긍정적인 영향을 미치는 것으로 나타났다. 본 연구는 기존의 부실원인과 회생전략, 회생전략이 회생성과에 미치는 포괄적 분석모형을 넘어 회생원인에 따라 기업이 보다 주안점을 두는 회생전략이 어떻게 달라지며, 회생전략에 따라 회생성과도 달라질 수 있음을 실증적으로 규명해 보았다는데 연구의 의의를 찾을 수 있다.

• International Journal of Railway
• /
• 제6권4호
• /
• pp.131-138
• /
• 2013

We have studied the financial performance of Pakistan Railways and found that the financial indicator (net earnings ratio) of Pakistan Railways is consistently decreasing over the years, causing severe financial and operational crises. The implication of our study indicates that the '3Rs' Strategy (retrenchment, repositioning and reorganizing) should be put into practice and furthermore, favorable changes in environmental factors can also contribute towards organizational turnaround. This study would help the Government of Pakistan to think and plan more clearly about turnaround strategies that could improve the performance and growth of Pakistan Railways.

• 한국시뮬레이션학회논문지
• /
• 제8권4호
• /
• pp.61-72
• /
• 1999

This paper presents an estimation method of container handling capacity and selection of resource allocation strategies of container terminals using the computer simulation models. Simulation models are developed to model container terminal consisting of 4 berths considering the berth allocation strategies, crane allocation strategies and the total number of container cranes using Arena simulation package. The proposed models do not consider the yard operations and gate operations. All the input parameters for the models are estimated on the basis of the existing container terminal operation data and the planning data for the automated container terminal planned by Korean government. Four berth allocation strategies and three crane allocation strategies are considered. The total number of container cranes considered ranges from 12 to 15. Non-terminating simulation techniques are utilized for the performance comparison among alternatives. The performance measures such as average ship turnaround time, average ship waiting time, average ship service time, the number of containers handled per year, and the number of ships processed per year are used. The result shows that the berth allocation strategy minimizing the sum of the number of ships waiting, the number of busy container cranes and number of ships handled performs better than any other berth allocation strategies. In addition, the crane allocation strategy allocating up to 5 container cranes per berth performs better than any other crane allocation strategies. Finally there are no significant performance differences among the alternatives consisting of different total number of container cranes allocated.

• 한국항만경제학회지
• /
• 제39권1호
• /
• pp.47-63
• /
• 2023

스마트 항만 및 항만 자동화에 수직 배치형 컨테이너 터미널을 적용하여 운영하는 사례가 늘고 있다. 본 연구는 수평 배치형과 수직 배치형 컨테이너 터미널에서의 본선작업 시간을 분석함으로써 각 터미널간 생산성을 비교하고, 향후 수직 배치형 컨테이너 터미널의 운영 효율성 증대 방안을 제시하고자 한다. 이를 위해 각각을 대표하는 터미널을 선정하여, 2018년부터 2022년까지 최근 5년 선석배정현황 데이터를 수집하였으며, 모수적 생존분석 기법인 가속실패시간모형(Accelerated Failure Time, AFT)을 활용하여 분석을 실시하였다. C/C 작업 조건이 '동일하다'는 가정 하에서, 수직 배치형 컨테이너 터미널에서의 본선 작업 생산성이 보다 좋은 것으로 나타났으며, 코로나19 기간에는 생산성이 감소한 결과를 나타냈다. 작업량이 많은 선박의 경우와 유럽 선사의 선박의 경우, 본선작업 시간이 감소하는 걸 알 수 있다. 적정 C/C의 투입 및 효율적 운영, 장비들 간 원활한 운영, shifting 작업은 증가, C/C를 포함한 하역 장비들의 준비시간 감소 및 고장/사고 최소화 등 수직 형태 컨테이너 터미널의 생산성을 높이기 위한 방안을 제시하였다.

• Safety and Health at Work
• /
• 제1권1호
• /
• pp.51-60
• /
• 2010

Objectives: The level of benzene exposure in the petrochemical industry during regular operation has been well established, but not in turnaround (TA), where high exposure may occur. In this study, the characteristics of occupational exposure to benzene during TA in the petrochemical companies were investigated in order to determine the best management strategies and improve the working environment. This was accomplished by evaluating the exposure level for the workers working in environments where benzene was being produced or used as an ingredient during the unit process. Methods: From 2003 to 2008, a total of 705 workers in three petrochemical companies in Korea were studied. Long- and short-term (< 1 hr) samples were taken during TAs. TA was classified into three stages: shut-down, maintenance and start-up. All works were classified into 12 occupation categories. Results: The long-term geometric mean (GM) benzene exposure level was 0.025 (5.82) ppm (0.005-42.120 ppm) and the short-term exposure concentration during TA was 0.020 (17.42) ppm (0.005-61.855 ppm). The proportions of TA samples exceeding the time-weighted average, occupational exposure level (TWA-OEL in Korea, 1 ppm) and the short-term exposure limit (STEL-OEL, 5 ppm) were 4.1% (20 samples of 488) and 6.0% (13 samples of 217), respectively. The results for the benzene exposure levels and the rates of exceeding the OEL were both statistically significant (p < 0.05). Among the 12 job categories of petrochemical workers, mechanical engineers, plumbers, welders, fieldman and scaffolding workers exhibited long-term samples that exceeded the OEL of benzene, and the rate of exceeding the OEL was statistically significant for the first two occupations (p < 0.05). Conclusion: These findings suggest that the periodic work environment must be assessed during non-routine works such as TA.

• 한국의상디자인학회지
• /
• 제5권2호
• /
• pp.31-46
• /
• 2003

The purpose of this study was to explore the ways of improving Korean apparel firms' competitiveness by examining the Korea's number one trading partner U.S. apparel industry. Especially, the Los Angeles area apparel industry which is the second largest and the primary market center on the west coast was analysed. The following strategies are suggested to Korean apparel firms to function more effectively in incleasingly competitive U.S. markets: l)Basics can be produced in lower wage countries meanwhile quick turnaround and high quality works can be produced either in Korea or U.S. 2)Manufacturers might try to have direct relationship with powerful retailers who have their own private labels of store-brand lines. 3)Apparel companies can open market showrooms in the California Market Center. For small firms they can contact with independent representatives who receive commissions for showing lines for manufacturers or rent space for showing the lines during market weeks. 4)Apparel firms can contact buying offices to introduce their products to retail buyers. 5)Korean firms can contact Korean-American apparel firms to gain easy access to U.S.Market.

• Clinical and Experimental Pediatrics
• /
• 제56권6호
• /
• pp.235-241
• /
• 2013

Repair of tetralogy of Fallot (TOF) has shown excellent outcomes. However it leaves varying degrees of residual hemodynamic impairment, with severe pulmonary stenosis (PS) and free pulmonary regurgitation (PR) at both ends of the spectrum. Since the 1980s, studies evaluating late outcomes after TOF repair revealed the adverse impacts of residual chronic PR on RV volume and function; thus, a turnaround of operational strategies has occurred from aggressive RV outflow tract (RVOT) reconstruction for complete relief of RVOT obstruction to conservative RVOT reconstruction for limiting PR. This transformation has raised the question of how much residual PS after conservative RVOT reconstruction is acceptable. Besides, as pulmonary valve replacement (PVR) increases in patients with RV deterioration from residual PR, there is concern regarding when it should be performed. Regarding residual PS, several studies revealed that PS in addition to PR was associated with less PR and a small RV volume. This suggests that PS combined with PR makes RV diastolic property to protect against dilatation through RV hypertrophy and supports conservative RVOT enlargement despite residual PS. Also, several studies have revealed the pre-PVR threshold of RV parameters for the normalization of RV volume and function after PVR, and based on these results, the indications for PVR have been revised. Although there is no established strategy, better understanding of RV mechanics, development of new surgical and interventional techniques, and evidence for the effect of PVR on RV reverse remodeling and its late outcome will aid us to optimize the management of TOF.

• 한국도서관정보학회지
• /
• 제29권
• /
• pp.171-212
• /
• 1998

In this study, the concept, developments and the present situations of an electronic document delivery services, projects and systems are examined. Also the implications of an electronic document delivery services in the library and the future of the services are studied. Some conclusions and a few suggestions derived from the study are as follows : (1) An electronic document delivery services, one of the most innovative methods for delivering the needed materials to a researcher is now being incorporated into an important part of today's information industries. (2) The technological developments have made it possible to deliver nearly all the document formats electronically, and can make the shortest turnaround time to be 30minutes. The technology has also made it possible to develop user-friendly document delivery services by providing the various methods of requesting of, delivering of and charging for the materials. (3) Different types of institutions have made researches, tests, developments and implementation of an electronic document delivery techniques with different features. (4) The issues of copyrights and standards involved in an electronic document delivery still remain as the problems to be solved. (5) The increase and development of patron-initiated document delivery services have and will have some impacts on the library services with the possibility to pass by the librarians intermediation, but to deliver the materials directly to the end-users. (6) The library could take the outside electronic document delivery services as an opportunity. Accordingly, in order to incorporate this services in the interlibrary loan, collection development and other library services, the library should establish appropriate policies, guidelines and management strategies related to the operations. (7) In order to maximize the use of the electronic document delivery services, the library should provide an appropriate education for the librarian and users to have knowledge and skills on the changing techniques of the electronic document delivery and on the various features as well as changing mechanisms by each system and service.