PURPOSES: This study is to investigate the mechanical performance of the fiber reinforced lean concrete with respect to different types of fibers. METHODS: Increased vehicle weight and other causes from the exposed conditions have accelerated the deteriorations of road pavement. A new multi-functional composite pavement system is being developed recently in order to extend service life and upgrade the pavement. A variety of tests were conducted before and after hardening of the concrete. RESULTS: From the test results, it was found that the use of different types of fibers did not affect the compressive strength development. This might be due to the inherent property of the lean concrete. When steel fibers were used relatively greater flexural strength and flexural fracture toughness were developed. Also addition of fly ash by replacing a part of Portland cement the fracture toughness was slightly increased. CONCLUSIONS: It has been known that the addition of fibers and use of mineral admixture can be positively considered in the development of multi-functional composite pavement system as its required mechanical performance is obtained.

This paper deals with the productivity increment through construction of lean production system for automobile factory in China. This lean production system has been progressed according to 5 steps. Step 1 is the work preparation. Step 2 is the process design. Step 3 is the establishment of method to count production quantity. Step 4 is the establishment of measuring method for input and output. Finally, step 5 is the construction of flexible production system able to adapt for environment change. This lean production system is expected to obtain the productivity increment by 50% for plastic plant and reduction by 50% in inventory quantity.

오늘날 제품이 문제가 되는 경우는 별로 없다. 그런데 불행하게도 재화를 만들고 용역을 제공하는 많은 기업들은 제품 하나에만 관심을 쏟고 있다. 정작 중요한 것은 고객의 소리를 듣는 것이다. 서비스 산업에서 특히 이것은 아주 중요하다. 서비스 관련 여러 요소 가운데 중요도를 선정하여 서비스 품질을 린 프로세스적 사고로 서비스 요소중의 낭비를 제거 한다면 소비자에게 불필요한 서비스가 아닌 진정한 가치를 선사하는 일이 될 것이다.

The interest for public administration service which is regarded as the service industry recently is increasing. This means that the value of customer satisfaction pursued from enterprise section in the past is broadly accepted as the goal of struggle for existence in both public and personal domain. But, it can be said that quality problem in public administrative service is remained if it regards as simple campaign for kindness The kindness is nothing but an one of facts which consist of satisfaction. In this paper, we develop the Lean model called LPAM(Lean Public Administration Model) to improve the public adminstration service in the base of acceptable methodology which is widely using in improvement. Also we examine that proposed model can work well as the improve process pursuing customer"s satisfaction and improvement of public administration service.

본 연구는 기업의 정보화 구축시 성과 중심의 구축으로 인한 시스템 효율의 저하와 시스템의 효율 저하로 의해 발생하는 비용 등을 린 시스템 적용으로 최적화하고 프로세스 접근의 한계성을 구축 사이클을 개선을 통해 기존의 정보시스템의 구축 방법에 비효율적 측면을 제거하고 효과적인 접근가능 모델을 제시하여 구축 방법을 향상 시키고자 한다.

본 연구에서는 생사시스템의 전체적인 방식인 린 시스템과 과학적인 문제절차를 지향하는 6시그마를 융합한 LEAN SYSTEM의 효과적인 통합을 통하여, 기업이 린 시그마시스템을 도입했을 때 가시화 될 수 있는 시너지 효과 및 효과적인 도입방안에 관하여 연구하고자 한다. 기업 주변 환경 및 기업 내부 환경에 맞춘 시스템의 도입에 있어 중요한 것은 도입 시기 및 도입 절차 그리고 도입 후 기업에 맞도록 개선해 나가는 그 기업만의 로드맵 창출이다. 따라서 기업 환경의 여러 가지 시스템을 총체적으로 관리하고 이끌어 나갈 하나의 잣대적인 역할을 할 시스템 도입이 필요한 데 본 연구에서는 LEAN SIGMA SYSTEM을 통하여 6시그마의 변화관리 체계와 문제해결 절차를 LEAN SYSTEM추진에 적용한 사례 연구 및 이론 연구를 바탕으로 도입 시 발생하는 시행착오를 최소화하여 기업의 혁신 실패 비용과 시간 낭비를 최소화하여 기업 운영에 있어 효과적인 조직 시스템 모델을 개발하고자 하는 것이 이 연구의 목적이다.

The supply chain not only includes the manufacturer and suppliers, but also transporters, warehouses, retailers, and customers themselves. Within each organization, such as manufacturer, the supply chain includes all functions involved in filling a customer request. these functions include, but are not limited to, new product development, marketing, operation, distribution, finance, and customer service. Lean Supply chain coordination improves if all supplier of chain take actions that together increase total supply chain profits. To design of Modularity by the grouping supplier, the proposed method is to develop the most appropriate production system models in the Supply Chain Management which is necessity of the times and its importance. The objects of this study is development of model and cost analysis to the modular production system in Lean SCM. Introduction of modular production system in Lean SCM is effective in reducing the cost in processing, manufacturing, inventory holding, ordering, etc.

Lean manufacturing refers to a manufacturing paradigm based on the fundamental goal of the Toyota Production System-continuously minimizing waste to maximize flow. Many organizations recognize the importance of becoming lean but most of them achieve the limited improvement in the part of entire processes. This results from the fact that many organizations not only understand lean manufacturing as just a tool for the cost reduction or productivity improvement or no inventory but also sporadically implement improvements without linking their efforts to an overarching strategy and quality management system as well. Many organizations are doing lean without necessarily becoming lean. All the elements of lean manufacturing system should be implemented based on the process approach considering mutual interactions among them to minimize waste to maximize flow. In this point of view, I am positive that ""ISO 9004:2000 Quality Management System-Guidelines for Performance Improvement"" based on process approach could provide a fundamental structure with the organizations toward lean enterprise. I hence would like to introduce a self-assessment checklist to help the organizations develop and assess ISO 9004:2000 based quality management system linking to their overarching lean strategy toward becoming lean.