• 대한안전경영과학회:학술대회논문집
• /
• 대한안전경영과학회 2004년도 춘계학술대회
• /
• pp.61-65
• /
• 2004

As technique that can contribute in quality improvement in design process to overcome shortcoming of traditional quality control, call design or development department quality control activity that is achieved to reduce gun damage shuddering at circle minimizing change or side effect of product performance as off-line quality control. This paper discuss optimal process design of investment projects expansion and replacement investment on each line or individual in the production. Generally optimal plant design has add to a few method by Subsidiary means with use a especial method. And then in this paper, a Robust design is presented, which may be effective to the processes appraisal or improvement. We propose that should make a optimal plant design model for reducing field failure rate to assign by real data on different factors in plant system. Using this model, robust design of taguchi method used in this comprehensive method for reducing field failure rate in plant system.

• 대한안전경영과학회:학술대회논문집
• /
• 대한안전경영과학회 2004년도 추계학술대회
• /
• pp.197-203
• /
• 2004

Railway system is consisted of various resources such as rail-line, signal, and railcar. It is necessary to efficiently utilize these limited and expensive resources as much as possible up to given line capacity. So far, we treat the line capacity as the criteria for evaluating investment alternatives or for restricting train frequencies, and this criteria is calculated statical and experimental numerical formula. But, line capacity has special attribute that changes dynamically according to operational conditions, so there is a need of new line capacity estimation system. In this paper, we present an improved systematic line capacity model. The proposed model has three main components ; TPS(lain performance simulator), PES(parameter evaluation simulator), LCS(line capacity simulator). The concept of each sub-component is described, including the evaluation method of capacity parameters. And capacity parameter evaluation and estimation results using sample line section data are presented.

• 벤처창업연구
• /
• 제17권6호
• /
• pp.1-12
• /
• 2022

본 논문은 국내 창업초기 투자활성화를 위해 도입된 SAFE 투자방식이 창업초기투자의 대표적 투자형태로 활성화되며 시장에 안착하는데 필요한 정책적 방안을 제시하는데 목적을 두었다. 특히, SAFE와 컨버터블 노트 방식과의 비교를 통해 SAFE가 컨버터블 노트에 비해 창업초기기업에 대한 투자 활성화에 보다 적합한 측면이 있음을 분석하였다. 또한, 본 연구는 SAFE 관련 선행연구들이 SAFE 활성화의 가장 중요한 문제로 SAFE의 법률적 지위확보문제, 세제관련문제 그리고 후속투자 유치 실패 및 만기불확실성 문제를 주요 쟁점으로 다루고 있는 점을 참조하여 한국형 SAFE 활성화의 정책적 대안을 제시하였다. 첫째, SAFE 회계처리 관련, 선행연구들을 참조로 SAFE의 부채와 자본으로서 처리방안의 대안을 제시하며, 특히 SAFE 도입을 주도하는 벤처투자법의 내용을 토대로 SAFE를 자본으로 처리하는 방법에 대한 대안을 제시하였다. 둘째, 세제지원 관련, 현재 개정이 추진되고 있는 벤처기업 인증제도를 토대로, SAFE 투자가 벤처기업인증을 위한 투자로 인정되어야 SAFE 투자관련 세제지원 문제를 해결하는 방안임을 제시하였다. 셋째, 후속투자 유치 실패 관련, 해외주요사례 벤치마킹 연구들을 토대로, SAFE의 한국형 계약방식 즉, 계약조항 문구를 만들 때 후속투자유치 실패에 대한 안전장치와 만기일 및 그 이후에 대한 이벤트 협상 등의 내용을 담는 수정문구를 반영하는 방법으로 문제해결 방안을 제안하였다. 본 논문은 SAFE 투자가 국내 창업초기 투자방식으로 활성화되기 위한 방식으로 이 제도의 도입 법적근거인 벤처투자법과 제도의 주무부서인 중소벤처기업부의 보다 강한 역할을 중심으로 제안하였다. 이를 통해 본 논문은 기존 선행연구들의 내용을 보다 정책실행적인 관점에서 문제 해결 실행대안을 제시하였다.

• 한국안전학회지
• /
• 제35권6호
• /
• pp.78-84
• /
• 2020

The F&EI technique is one of the risk assessments with many advantages. It can save time and effort compared to quantitative risk assessment (QRA). By using the evaluation result of this technique, it is possible to check the effectiveness of the investment cost. In addition, a relative risk ranking can be created and used to establish the facility management cycle and to prioritize investment. However, evaluating the target process can be evaluated more than the actual risk since the LCCF, a loss prevention measure, is too limited. In addition, calculating premiums via this method can result in excessive premiums, making it difficult to evaluate the risk precisely. Therefore, new safety guard was added to the LCCF of the F&EI risk assessment with reference to HAZOP and LOPA techniques. Newly added LCCFs are Deflagration arrester, Check valve, SIS, and Vacuum beaker, etc. As a case study, F&EI risk assessment was performed on Acetone storage tank of a API (Active pharmaceutical ingredient) plant to compare actual MPPD. The estimated loss amount was 592,558$ for the existing technique and 563,571$ for the improved technique, which was reduced by about 5% compared to the previous one.This proved that a more precise evaluation is possible and that the efforts for safety at the workplace are reflected in the evaluation results.

• 대한안전경영과학회:학술대회논문집
• /
• 대한안전경영과학회 2001년도 춘계학술대회
• /
• pp.39-43
• /
• 2001

The existent system of management for Measurement of Safety Cost are not effective because of the data loss and time loss and occurrence of errors through manual calculation. Therefore, tile development of the software for measurement of safety cost can solve the problem through the systematic calculation for safety cost and converting the related data to database, and also can build the strategy of the investment of Safety cost through analysing and comparing with the past data in the database. As a part of development of the software of Measurement of Safety Cost which is appropriate for the domestic environment, this study is developing a software based on Noguji method, which is one of the methods of Measurement of Safety Cost, and to appraise the efficiency of the management of Measurement of Safety Cost we will implement and improve the software in the case of the domestic enterprises.

• 한국안전학회지
• /
• 제17권1호
• /
• pp.68-71
• /
• 2002

A research on accident loss calculation for polyol process without safety management activities, and safety cost estimation using process risk assessment has been implemented. In order to estimate a magnitude of loss, accident scenarios were made by combining result made from HAZOP Study method with accident possibility analysis results implemented with FTA. Also effect assessment was implement for accident consequence of each scenario. And minimum possible loss cost has been calculated when safety investment do or not. Result from cost-benefit analysis was shown as approximately \335 billion(=USS44,000 billion), as cost after subtracting safety management cost from minimum possible loss cost.

• 대한안전경영과학회지
• /
• 제3권1호
• /
• pp.1-10
• /
• 2001

The existent system of management for Measurement of Safety Cost are not effective because of the data loss and time loss and occurrence of errors through manual calculation. Therefore, the development of the software for measurement of safety cost can solve the problem through the systematic calculation for safety cost and converting the related data to database, and also can build the strategy of the investment of Safety cost through analysing and comparing with the past data in the database. As a part of development of the software of Measurement of Safety Cost which is appropriate for the domestic environment, this study is developing a software based on Noguji method, which is one of the methods of Measurement of Safety Cost, and to appraise the efficiency of the management of Measurement of Safety Cost we will implement and improve the software in the case of the domestic enterprises.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2005년도 추계학술대회 논문집
• /
• pp.618-622
• /
• 2005

Railway safety case is an important measure for demonstrates operating company's capability, commitment and competence in accordance with Railway Regulation 2000 in UK. Safety case describes the scope of operation, definition and boundary of activity, risk analysis, system safety activity, annul safety plan. Relationships between' these components and company's policy, organization, human resource, control measure, investment plan are also included. A case study for Network Rail (infrastructure manager)'s safety case is described in this paper for the construction of safety rule and safety planning.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2007년도 춘계학술대회 논문집
• /
• pp.577-583
• /
• 2007

In railway business plan, operations require a strategic and sustained level of planned investment to ensure assets are fit for purpose over the whole of their planned life. Therefore it is essential that operator can confidently plan and predict capital investment requirements over a number of years. This research addresses that how the London Underground apply a systematic risk based approach to their health and safety planning and investment decision making. Through this case study, we investigate the elements of management system that includes arrangements for the ongoing identification of hazards, assessment of risks and the implementation necessary control measures. Risk based business planning processes are also addressed.

• Industrial Engineering and Management Systems
• /
• 제11권1호
• /
• pp.11-17
• /
• 2012

Along with the recent trend toward increasing variety and shorter life of products in the market, evaluation of risk for economic investment alternatives is of practical importance in manufacturing companies. This paper assumes that each alternative is composed of demand volume and unit sales price as income factors, and unit variable cost and fixed cost as expense factors. The paper assumes that these four factors move worse from the originally expected values, toward the direction of decreasing profit. Values of these four factors are also assumed to fluctuate from year to year over the entire multi-period. By applying the analysis of the breakeven points to each of the four factors, safer area against these changes is represented on the two dimensional domain called normalized total-cost unit-cost domain. A practical numerical example is analyzed to verify the validity of the proposed method.