It developed 836 units on the classification of KECO. But. Actual companies do not take advantage of improvements in job competency and production processes. This study is improved manufacturing industry production process use to developed the national competency standards(NCS). After we finds process problems, develop production process improvement method.

하수방류수 재이용을 위한 RO 전처리로 부유물질 및 콜로이드 물질의 제거를 위해 가압식 MF를 사용하였다. 남양주 J 하수처리장의 생물학적 처리와 모래여과를 거쳐 방류되는 방류수를 원수로 사용하였으며 100 톤/일 규모의 pilot plant를 1년 이상 운전하여 성능을 검토하였다. 가압식 MF에 의해 원수 수질 및 온도의 변화에 상관없이 flux 40 LMH 운전이 가능하였으며 전처리로 응집제를 넣어 용존 유기물을 응집할 경우 60 LMH 운전이 가능하였다. RO 공정에서 장기간 정지 이후 운전을 재개하였을 때 1단 pressure drop이 급격히 증가하는 현상이 나타났고 이러한 결과는 배관 내 형성된 유기물과 이온물질의 복합오염물질이 1단 RO막에 침적된 결과로 사료된다.

NCS(National Competency Standards) is made by HRDKorea for real company, education, training and qualifications under the current government of national issues. It developed 836 units on the classification of KECO. But. Actual companies do not take advantage of improvements in job competency and production processes. This study is redesigned a real company production process use to some developed the NCS standards. After we finds some process problems and then searches the improve methods on analysis the problems.

리무진 차량은 특수 용도로 사용하고 있고 현재는 수작업으로 하이루프를 작업 시 다수의 작업자가 하이루프를 작업 하고 었으며 생산성 저하는 물론 제풍의 품질에도 영향을 주고 있다. 본 본 논문에서는 이러한 조립공정을 감소하는 기술과 1인의 작업자가 작업이 가능하도록 하는 공정을 개발하여 작업자의 안전과 직무 능력과 안전성을 확보하는 방향으로 기술 개발을 실시하였다.

최근 현대 무기체계는 국방예산 절감과 보다 빠르게 전략화하기 위해 시험평가에 소요 되는 기간을 줄이고자 하고 있다. 이에 따라 기존의 무기체계 시험평가 프로세스 에서 다루는 시스템 설계에 대한 단계별 안전 활동 강화의 필요성 역시 강조되고 있 다. 본 논문에서는 무기체계 획득 프로세스에서 위험 완화의 구성 요소로 확인 (Verification), 검증(Validation) 및 인정(Accreditation) 활동을 고려한 시험평가 프로세 스의 개선사항 도출과 모델링을 통해 무기체계 시스템인 함정 무기체계를 대상으로 적용 및 조정 구축에 대한 내용을 기술하고 있다. 본 연구의 결과를 토대로 시험평가 의 위험요소, 위험평가 데이터의 관리 및 추적 기능을 개선함으로써 향후 M&S기반 획득 시험평가 시 체계 개발 및 운용에서 발생할 수 있는 비용 및 시간을 절감 시킬 수 있을 것으로 기대된다.

Polyurethane is an elastomer polymer, which is flexible, tough and resistant. This material is widely used various fields such as automobile, aeroplane, textiles, construction industries. Currently there exists more than 1,000 manufacturing companies in Korea that are closely related to Polyurethane. In spite of a number of Polyurethane manufacturing companies, there are little attention in academia as well as industries to study the safety and manufacturing process improvement on Polyurethane. In this paper, we consider a case study for the Polyurethane manufacturer to improve productivity by using safety management and manufacturing process reengineering. After careful analysis, we derive three enhancements to increasing the safety and productivity for the target company. Especially, we achieve about 16% productivity improvement in roller manufacturing process by replacing manual stirring job with automated mixing machine.

The application of sublimation transfer printing is widely expanded in the textile industry according to the growth of IT technology. Therefore, its improvement of manufacturing process is strongly needed. In this paper, new manufacturing process of sublimation transfer printing by combining conveyor system and hot plate pressing is developed. New process has improved quality and productivity of sublimation transfer printing. It is shown that the new process has better indices than existing process in the required time, man power, production output and sales. New process is able to cope with mass production and various manufacturing condition actively.

With the recent changes in the environment of weapon systems acquisition, the systems development is becoming more susceptible to a variety of risks. To cope with this situation, US DoD has been emphasizing the importance of constantly applying the test and evaluation (T&E) process throughout the whole life cycle of the weapon systems. In particular, the safety requirements are called for attention while dealing with system risks. To this end, the present paper is aimed at studying the T&E process which incorporates the systems safety in weapon systems development. Analyzing and modeling the relevant processes has made it possible to achieve the objective. As a case study, the model results were applied to the development of unmanned aerial vehicles.

The goal of this study is optimization of transparency liquid chemical coating process. At coating process in the maintenance of the coating gap is an important factor. Specially, at a small split from the substrate using the existing methods is difficult to maintain the uniformity of coating. In this study, slit coating uniformity and compare inkjet uniformity and thickness profile was analyzed using alpha-step. Also, the pencil hardness test and the color difference measurement were performed. As a result, changes of the coating process need to be made depending on the type of substrate and inkjet coating was suitable for substrate of a small split.

In this study, we develop a methodology for business process improvement (BPI) based on the event-driven process chain (EPC) model. The methodology consists of six stages for BPI such as identifying abnormal events, finding causes for the abnormal events and problems caused by the abnormal events, making cause and effect chains, drawing root-cause map, scoping business processes for improvement, and defining process improvement projects. We illustrate how to apply the methodology with some examples for the domestic registered mail delivery process.

HCFFT (Hybrid Concrete Filled FRP Tube) is consisted of pultruded FRP unit module, filament winding FRP which is in the outside of mandrel composed of circular shaped assembly of pultruded FRP unit modules, and concrete which is casted inside of the circular tube shaped hybrid FRP pile. The pultruded FRP can increase the flexural load carrying capacity and the filament winding FRP can provide the confinement for the concrete filled inside. The axial and flexural load carrying capacities of small diameter HCFFT piles were evaluated through the experimental and theoretical studies. In this study, we suggest the cross-section and manufacturing process of large diameter HCFFT pile which is expected to improve the quality and productibility of large diameter HCFFP pile.

최근 현대 무기체계는 최첨단 기술로 인한 무기체계 개발 속도 증가와 획득환경의 다변화와 더불어 이에 대한 위험도 동시에 증가하고 있다. 이에 따라 미국방부는 무기체계의 수명주기를 고려하여 시험평가를 지속 적용토록 강조하고 있다. 따라서 기존의 무기체계 시험평가 프로세스에서 다루는 시스템 설계에 대한 단계별 안전 활동의 강화의 필요성 역시 강조되고 있다. 그 중에서도 무기체계 개발의 핵심 활동에 해당하는 체계개발 단계는 양산에 들어가기 전의 최종 활동으로서 제대로 수행되어야만 초기에 의도한 무기체계 개발의 목적을 달성할 수 있을 것이다. 본 논문에서는 시스템 안전성 요소를 고려한 시험평가 프로세스의 개선사항 도출과 모델링을 통해 무기체계 시스템인 무기체계를 대상으로 적용 및 조정 구축에 대한 내용을 기술하고 있다. 본 연구의 결과를 토대로 향후 시험평가 기간의 단축 및 비용 절감과 데이터의 관리 및 추적 기능을 개선함으로써 무기체계 개발 후의 안전사고 발생 가능성을 줄일 수 있을 것으로 기대된다.

As the human demand or desire on brand new systems otherwise equipped with new functions grows drastically, so does the complexity of the systems. With this trend, the systems are becoming bigger in scale and at the same time the safety requirements are more stringent in the development. Typical systems examples in such a situation may include high-speed railway systems, aero and space systems, marine systems, etc. Failure of those systems can cause serious damages on both the human being and wealth with social infrastructure. As such, it is quite necessary to ensure that the safety requirements be satisfied in the system development. To achieve this need, there could be a lot of solutions to take. In this paper, regarding safety, a special attention is given to the verification phase process, which is one of the intermediate phases of whole systems development process. More specifically, the ultimate concern is placed on how to carry out the design verification while ensuring the safety requirements. To do so, some improvements in the verification phase were proposed first. Then, the outcomes were combined with the systems safety process by generating an integrated process model to reach the goal. As a case study, application to a railway system was discussed, where strict safety requirements are usually necessary. It would be expected that the potential likelihood of failure with rail systems could be reduced if the results obtained are used effectively with some enhancement from further study.

Ocean discharge of sewage sludge, which started in the year of 1993 in Korea, was stopped in the beginning of 2012, Landfill of sewage sludge was also prohibited in 2003 owing to public acceptance of the lanfill sites, and partially reopened in 2007 due to the necessity of organic component in sludge to produce methane gas. Sludge recycle ratio will increase in sewage sludge treatment by volume reduction and drying, and then recycle of the thermal energy as fuel in power plant and also material as raw material of cement. Several drying processes are compared with reasoning and an appropriate drying sequence is suggested.

최근 현대사회는 자동차, 철도 및 항공 등 대형 복합 시스템의 체계 속에서 지내고 있으며, 고장 및 사고로 인한 시스템의 안전 설계에 대한 고려와 안전에 대한 인식이 증가하고 있다. 따라서 기존의 시스템공학 프로세스에서 다루는 시스템 설계에 대한 단계별 안전 활동의 강화의 필요성 역시 강조되고 있다. 그 중에서도 시스템 설계의 최종 활동에 해당하는 검증 단계 활동이 제대로 수행되어야만 초기에 의도한 시스템 설계의 안전도 향상을 바라볼 수 있을 것이다. 본 논문에서는 안전 활동을 고려한 시 스템공학 프로세스의 검증 단계의 개선사항 도출과 모델링을 통해 안전중시 시스템인 철도 차량 운전실 시스템을 대상으로 적용 및 조정 구축에 대한 내용을 기술하고 있 다. 본 연구의 결과를 토대로 향후 품질 향상 및 비용 절감과 데이터의 관리

신제품 개발에 있어서 제품의 잠재적 고장모드를 줄이기 위한 설계 노력은 매우 중요하며 이를 위해서는 체계적이고 혁신적인 신뢰성프로그램을 적용하는 것이 반드시 필요하다. 기업에서 동시공학을 기초로 한 건전한 신뢰성프로그램에 포함된 주요활동으로는 DFR(Design for Reliability), 신뢰성검증 및 물리적 해석활동 등이 있으며, 이 중 DFR은 제품 개발을 지원하는 첫 번째 과학적 신뢰성활동이다. 본 연구는 브레이크패드의 신뢰성을 향상시키기 위

The present study investigated the concentration of gaseous odor emitted from paint manufacturing facilities and the cases of improvement for odor emission reduction. It was found that the companies located in odor management district observed the odor emission standard more than the companies located in other local industrial complex. We ascribed the reason to the continuous crackdown by local government and voluntary efforts of each companies. Finally, we described the improvement cases of process for odor emission reduction.

As enterprises, based on the forecast of the customer's demand and collaboration with the suppliers, establish the integrated system directing supply, production, and distribution for the increase of productivity, Thus, this study intends to find the most urgent and critical factors for the improvement of the information system by externalizing factors affecting the operation of information system, suggest the process to improve the relevant functions of information system, and design the process. As a result of the analysis of the previous studies on the improvement of the information system, many studies were conducted on the improvement of ERP and SCM, yet there was no study conducted targeting about APS (Advanced Planning & Scheduling). Thus, this study chose APS as the subject for the design of the process for the improvement for the information system.

Navy ship acquisition management business contributed to the korean Navy and defense exports with government suppliers in Korea for over 40 years. But due to advanced technology, development trend of Navy ship and defense export requirements, it enable to

In this paper, we raised the performance of heuristic algorithm to assign job to workers in parallel line inspection process without sequence. In previous research, we developed the heuristic algorithm. But the heuristic algorithm can't find optimal solution perfectly. In order to solve this problem, we proposed new method to make initial solution called FN(First Next) method and combined the new FN method and old FE method using previous heuristic algorithm. Experiments of assigning job are performed to evaluate performance of this FE+FN heuristic algorithm. The result shows that the FE+FN heuristic algorithm can find the optimal solution to assign job to workers evenly in many type of cases. Especially, in case there are optimal solutions, this heuristic algorithm can find the optimal solution perfectly.