Earticle

TPM(Total Productive Management) that is enforcing introducing more than in domestic manufacturing industry is using total plant efficiency by the evaluation index, and as a result, can see a lot of examples that plant productivity is increased. This study's purpose centers total productive management activities that is management system for total plant efficiency's maximization, plant information system that total productive management activities factor that is enforcing in manufacturing industry can develop evaluation model that can evaluate qualitative activities by quantitative activities in process that maximize total plant efficiency wishes to do design.

Many countries of the world is driving forward development of large-scale hub port. They are now pushing ahead with setting up of effective marketing strategies to survive in keen competitions of the 21st century port industry. The port is of ever increasing importance for the bridge connecting sea and road transportation in handling international cargoes. The port, differently from general working places, is a closed area required for security, customs, and quarantine procedures. The loading and unloading is being done differently by ports, cargoes, and ships. To do loading and unloading, a lot of equipment and different types of labor are required, which flow is complicated and safe management is essential. As above mentioned the port is very unique and very deteriorated working place in its working environment. The purpose of this study is to propose ways to reduce and prevent from port accidents. As first step to do this, we have collected 923 accidents happened at Incheon Port during the period of 1994 to 2003. We have thoroughly analyzed characteristics, harmfulness, and risk of the loading/unloading they have done, as well as the accident frequency and relationship between the accidents. As second step to further analyze, We have employed DMAIC technology, an advanced process of 6 sigma presently in spotlight as the best program for management innovation. This analysis results in recognition of important accident characteristics, causes and effects analysis, critical causes of accident, and suggestions to decrease accidents.

우리의 식생활 및 주거 환경이 향상됨에 따라 과거에 비해 학생들의 체격이 커지고 체형 또한 점차 서구화 되가는 경향을 보이고 있으나 아직까지도 초중고등학교에서는 학생 자신의 체격에 적합하게 조절하여 사용할 수 없는 고정형 의자를 사용하고 있다. 이에 따라 학생들의 신체발육에 지장을 초래 할 수 있으며 특히 요통과 같은 허리에 문제를 일으킬 수 있다. 따라서 본 연구에서는 학생 자신의 체격에 맞게 높낮이를 자유롭게 조절하여 사용할 수 있는 학생용 의자를 개발하였다. 개발된 조절형 의자는 일반적으로 사용하는 학생용 의자의 다리부분에 풀림과 조임이 가능한 금속제 나사형식의 높이조절봉을 도입하여 공구가 필요 없이 손으로 회전시켜 좌판의 높이를 자유롭게 조절하여 사용할 수 있게 설계하였다. 또한 의자 등받이는 전후상하방향으로 이동되게 함으로써 착석 시 좌판의 깊이와 등받이의 높낮이를 동시에 한번의 동작으로 조절 가능하게 하였다. 한편 개발된 조절형 의자는 현재 우리나라에서 채택하여 사용하고 있는 ISO 5970(Standards for tables and chairs for educational institutions)과 비교하여 수용능력에 따른 적합성 여부를 평가하였으며 피실험자 40명을 대상으로 fitting trials를 실시하였다. 평가결과 개발된 조절형 의자는 두가지 평가 기준에 적합하였으며 실용화 가능성을 발견하였다. 향후 이를 각급 학교 및 학원에 보급 활용함으로써 학생들의 이상체형 형성을 억제하여 신체 발육과 안전을 도모할 수 있으며 학습효과 또한 높일 수 있다고 판단된다.

A study is for the approach that we could reduce the logistics costs through uprising the efficiency, complying to the demand in time, stock management based on the general production plan in the point of SCM. We will take following steps to get the goal. First, we will overview the physical distribution expenses annually. Second, will find the main cause of optimal load loss by improper container and lack of delivery flexibility to the demand. Third, the goal will be inferred through the fast information share based on organic relationship, the establishment of general production plan, the improvement of stock management plan. By way of this process, it can be accomplished expense reduction as well as flexible establishment of the reduction of worker's load.

Prescribed according to the occupational safety and health low noise measurement method was changed to personal sampling in the method to measure an area noise. Such method had the limit which did not evaluated characteristic of sound of occurrence and the place of origin. This study was peformed to establish an engineering remedy of the work-place noise. The subject was a vibration control process of the place of business in Pusan. A simulation program applied for an engineering improvement of the work-place noise. The results were as follows: 1. An noise occurrence level of the work-place before improvement was 88~97dB(A), We applied an improvement method to be established and were expected to 80~119dB(A), 2. The level of the noise-distribution to appear in the place of origin of the work-place before improvement was 90~93dB(A) but, We executed the simulation after applied an engineering remedy and predicted 80~85dB(A). A result of the simulation blue part was changed mostly into the dark blue color. The results suggest that simulation program establishes an engineering remedy and is useful to the case to apply.

On this research, we show some concrete examples as software design, 2D/3D display, graph display, and gage display to develop a data monitoring system for real time safe fire testing. Developed software which is simulation software for live fire testing, has been designed to display informations about whole test status in a live fire testing, and with this, user can control a live fire testing under the safe environment. Beside, we increase a security by using a authority of user to access on this software. and we develop it based on module designed to apply a requirement of user later on.

This paper is to propose tolerance intervals for expected time at the given reliability and confidence level for continuous and discrete reliability model. We consider guaranteed - coverage tolerance intervals, that is, reliability - confidence level tolerance intervals. These proposed methodologies can be applied to any industrial application where the customer's operating specification require a high level of reliability.

The purpose of this study is to execute the investigation of injurious factors causing muscle-skeletal diseases at an automotive glass manufacturing company and, on the basis of the results, to enhance productivity by the improvement of working environment. By using an survey and an ergonomic evaluation method, symptoms of muscle-skeletal diseases of workers and working postures at each process were analyzed, and quantitative evaluation of muscle-skeletal disease risk against each process was performed. Based on the result of the evaluation, to enhance the working environment, improvement of worktable, working space, tools, and outfit was suggested, and induction of mechanical system was also suggested. Suggested improvement plan was applied to the workplace step by step and it is confirmed that improvement plan not only removes the injurious factors of muscle-skeletal diseases but also is effective to enhance productivity.

Many Korean companies are challenged to reduce logistics cost and meet environmental-friendly logistics. The textile companies in harsh competition are requested to make improvement on their logistics environment to cut down the total cost. However, they have reached the limit on improving the manufacturing process. We believe that the logistics department is the most improvable part at present. Improving logistics will be highly effective to cut down the total cost. In this study, we present Pad Pool System(PPS) as the solution to save their logistics cost. PPS, which means the shared use of Styrofoam pads, will enable the textile companies to cut down their cost and strengthen enterprise competitiveness. Also, PPS will be helpful reducing environmental disruption because the system reuses retrieved Styrofoam pads many times.

The growth and survival of a enterprise depend upon its proper strategic capability against the rapid change in environment. The enterprise that well accommodates the changing environment and properly uses the resources will continue its growth. The problems in accommodating business environment are how to focus the limited manufacturing strategy on certain point. The manufacturing innovation program receives a large effect in the manufacturing strategy. Consequently it follows the degree with manufacturing innovation program agrees with the manufacturing strategy determine the maximization of the manufacturing and management performance.

In these days, there is doubt about the effectiveness of ISO-9000 and ISO-14000 which are generally introduced in korean corporation by the consensus and even by corporations themselves. In order to find out the reason about the doubt, we should unterstand the present situation, and concider what countermeasure shall we take. It's obvious that if there is no doubt about the effectiveness and availability for quality system authenticated and verified by the international, then all the authentication can be made from that excellent system. In that case, it is necessary to find out wheather it only exists in Korea or it genally exists internationally. This thesis considers the problems and try to search for a system management project and measure which is suitable for Korea.

EPC seeks to minimize variability by transferring the output variable to a related process input(controllable) variable, while SPC seeks to reduce variability by detecting and eliminating assignable causes of variation. In the case of product control, a very reasonable objective is to try to minimize the variance of the output deviations from the target or set point. We consider an alternative EPC model with second-order autoregressive disturbance. We compare three control systems; EPC, EPC combined with EWMA. This paper shows through simulation that tlhe performance of the integrated model of EPC and EWMA is more preferable than that of EPC.

This paper is to construct the integrated sustainable management (ISM) system. This research focuses on the intergration of two concepts - balanced scorecard management system and the three pillars of sustainability. The system certification, product certification, innovation and participation tools are considered in constitutional elements for ISM system. Finally, this paper proposes the causal analysis, the third assessment, reporting for ISM system.