• Korean Journal of Materials Research
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• v.12 no.4
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• pp.240-247
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• 2002

Tin oxide thin films doped with silicon as anodes for lithium secondary battery were fabricated by R.F. magnetron sputtering technique. The electrochemical results showed that the irreversible capacity was reduced during the first discharge/charge cycle, because the audition of silicon decreased the oxidic state of Tin. Capacity was increased with the increase of substrate temperature, however decreased with the increase of RTA temperatures. The reversible capacity of thin films fabricated under the substrate temperature of $300^{\circ}C$ and the Ar:$O_2$ratio of 7:3 was 700mA/g.

• Journal of the Korea Safety Management & Science
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• v.6 no.3
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• pp.175-186
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• 2004

The compatibility of the enterprises of Korea was the 'low cost and mass production＆apos;. That in because, the entire business transactions including production, accounting, personnel management, and logistics need to be integrated with a global perspective. Logistics information system is to support the management of such logistics activities and involves in a wide range of the business operations. In other words, the logistics information system is 0 accurately and rapidly deliver and process the information available for the logistics in order to promote more smoother and efficient logistics by using such information. I'll give a brief introduction to the SRM(Supplier Relationship Management) system and go into the problem that should be considered and which phase to emphasize when building this system.

• Proceedings of the Safety Management and Science Conference
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• 2003.11a
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• pp.203-206
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• 2003

Each method for economic evaluation has its own characteristics. Therefore adoption of each of them in evaluation production investment project results in many problems. Hence combination & modification of them are required to perform more accurate evaluation about investment project. This paper discuss evaluation method of investment projects expansion and replacement investment on each line or individual in the production. Generally investment evaluation method has add to a few method by Subsidiary means with use a especial method. And then in this paper, a Taguchi Techniques is presented, which may be effective to the facilities appraisal or improvement. We propose a decision model to incorporates the values assigned by a group of experts on different factors in production. Using this model, SN ratio of taguchi method for each of subjective factors as well as values of weights are used in this comprehensive method for reducing production rate in production management.

• Proceedings of the Safety Management and Science Conference
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• 2013.04a
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• pp.255-261
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• 2013

As people make efforts on accident prevention, the number of accidents is decreasing, fatal major industry accidents are rather than increasing so that the number of deaths has not decreased. Under these conditions, there is an attempt to introduce and perform the safety vacational education system as a means for keeping from major industry accidents. Therefore, in this paper, we analysis vacational education of manufacturing industry in safety point of view and suggest the technique efficiently measuring and managing each safety management. Proposed the technique shows that the specification on safety determines weight through the managers of firms and each process is suggested by using SN Ratio.

• Journal of the Korean Applied Science and Technology
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• v.25 no.1
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• pp.41-47
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• 2008

This study was conducted to made a grid alloy (Pb-Ca-Sn-Al) which has a temporary composition ratio in order to improve the efficiency of lead acid batteries. The positive activity material made a 3BS(tri-basic lead sulfate; $3PbO{\cdot}PbSO_4{\cdot}H_2O$) by a low temperature curing and it evaluates the plate efficiency through the life cycle testing. The initial current capacity of low temperature curing plate was excellent but the life cycle was not good (S1). As for the S2 plate, however, the initial current capacity and the life cycle were superior.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.37 no.4
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• pp.259-268
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• 2014

Uniform brightness is very crucial for LCD panels, which should be made in during manufacturing. Usually some compensating algorithms are applied to recover the brightness deviation that occurs in actual panels. Although such remedying tools are used, it is very hard to prevent horizontal or vertical crosstalks that represent the brightness level difference in horizontal or vertical direction. This research applied transformability Taguchi dynamic characteristics and "nominal is best" static characteristic simultaneously to design the compensating circuit optimally that may reduce the crosstalks and make uniform brightness level.

• Proceedings of the Safety Management and Science Conference
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• 2006.11a
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• pp.523-529
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• 2006

Nowadays, a logistics and distribution center plays an important role in all industries. In addition to its traditional functions as a storage and unloading facility the distribution center serves as an assembly place for information, a source of information, and a turning point for the flow of information. On account of the above-mentioned reasons, each and every industry has increasing need of logistics distribution center. At this juncture, the present author thinks that it is necessary to make a study of the establishment and maximization of a ceramics logistics distribution center as a way for activating the ceramics industry.

• Journal of the Korea Safety Management & Science
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• v.4 no.1
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• pp.131-139
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• 2002

Since introducing the "Theory of Constraints" by Goldratt, its effect was verified by lots of scholars, men of enterprise. These days it is also introducing and studying in this country with good results. The objective of this study is to show how to determine the constraint resources on DBR scheduling. Actually, previous studies based on the line which just think a load/capacity rate on doing scheduling. This study will show a scheduling method which reflects multi-parameters. It could be a standard to reflect real manufacturing surroundings. On calculating a priority of each resources, we classified factors with subjective and objective factors. And we propose a decision model to incorporate values assigned by a group of experts on different factors to select a critical resource. On deploying this model, SN ratio of Taguchi method for each of subjective and objective factors will be used. And we propose a procedure which is organized with 7 steps. To understand the logic, a numerical manufacturing simulation will be presented. This method is a incorporating decision model on determining the constraint on multi parameters with experts.h experts.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.7 no.1
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• pp.17-21
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• 2008

Recently developed automotive components are of lightweight nature, providing automobiles with a high fuel efficiency and performance. In response to those trends of car developments, this study proposes a structural optimization method for the lower control ann. Lightweight design of lower control am can be achieved through two approaches: design and material technology. In this research, the former includes optimization technology, and the latter the technologies for selecting aluminum as a steel-substitute material. In this research, the design of experiments(DOE) built in ANSYS WORKBENCH are utilized to determine the optimum shape of a Lower Control Arm. And optimum design is compared first model and reduced design variable model that considered sensitivity using orthogonal array.

• Journal of the Korea Safety Management & Science
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• v.5 no.3
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• pp.133-143
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• 2003

Even in the present situation where any general criterion on CRM dose not exist, utilization of CRM is expected to be actively continued, which will cause many problems. In this regard, evaluating CRM counts. As the result, projects are being suspended and budgets cut, plans for introducing CRM suspended or cancelled and many CRM software vendors and technical consulting firms are facing serious management crisis. Yet, this phenomenon can be regarded as an interim one. In fact, some cases that successfully introduced CRM show that CRM is migrating from small scale which is typical when introduced to larger scale through various tests. Therefore, this study tries to segment customer for the sloving the problem. And it make efficient customer management. Using this model, SN ratio of taguchi method for each of subjective factors as well as values of weights are used in this comprehensive method for customer. A example is presented to illustrate the model and to show a rank reversal when compared to a model that does not eliminate extreme values and eliminates the highest and lowest experts' values allocating the weights and the subjective factors.