• The Journal of Fisheries Business Administration
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• v.21 no.2
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• pp.55-84
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• 1990

The objective of this study is to develop an inventory model for the inventory management of a stocking point which sells processed fisheries products. The study, first of all, sets up fisheries processing companies, food companies, apparel companies, pharmaceutical companies and electronic and electrical companies as a population. Then, a comparative study is empirically applied to obtain the inventory characteristics of final products by industry through a survey of a sample selected by a random sampling procedure. The major inventory characteristics of processed fisheries products obtained from the above analysis can be summarized as follows : 1) The major demand characteristics of processed fisheries products is to have wide seasonal fluctuations because the supply of raw materials (i.e., fisheries products) heavily depends on the productive capacity of nature. 2) It has found that fisheries processing companies are the worst in inventory management among the various industries selected in the sample. However, the self-rating of inventory management system by inventory managers of companies shows that the fisheries processing companies are relatively higher than the other companies. 3) The portion of inventory holding cost out of inventory relevant cost is very high for processed fisheries products compared with final products of the other industries. 4) Processed fisheries products are distributed to final consumers through roughly two distribution echelons and take a parallel type inventory system for their distribution structure. In order to develop an inventory model which reflects the inventory characteristics of processed fisheries products mentioned in the above, an inventory model with partial backorders is developed under the situation of stochastic lead time under the consideration of the inventory characteristics of processed fisheries products and then an iterative solution method is provided for the model. Then this study analyzes sensitivity for the standard deviation of lead time in the model by numerical examples.

• Korean Management Science Review
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• v.32 no.1
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• pp.83-100
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• 2015

We analyze a duopoly competition when two firms face input cost increases. The objective of this study is to determine the firms' optimal strategy between a price increase and downsizing under conditions of a spatially differentiated market and consumers' diminishing utility on the product size. We develop a theoretical model of two competing firms offering homogenous products using the standard Hotelling model to determine how firms' optimal strategies change when facing input cost increases. In this paper, there are two types of duopoly competitions: symmetric and asymmetric. In the symmetric case, the two firms have the same marginal cost and are producing and selling identical products. In the asymmetric case, the two firms have different marginal costs. The results show that the optimal strategy decision depends on the size of the input cost increase and the cost differences between the two firms. We find that when two firms are asymmetric (i.e., they have different marginal costs), the two firms might choose asymmetric pairs of strategies in equilibrium under certain conditions. When the cost differences between the two firms are sufficiently large and the cost increase is sufficiently small, the cost leader chooses price increase, and the cost-disadvantaged firm chooses downsizing in equilibrium. This asymmetric strategy reduces price competition between two firms, and consumers are better off. When the cost differences between the two firms are sufficiently large, downsizing is the dominant strategy for the cost-disadvantaged firm. The cost-disadvantaged firm finds it more profitable to reduce the product size than to increase its price to reduce price competition, because consumers prefer downsizing to price increases. This paper might be a good starting point for further analytical research in this area.

• Transactions of the Korean Society of Automotive Engineers
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• v.25 no.1
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• pp.11-18
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• 2017

In the present study, the low speed (4 km/h) crash behaviour of an aluminium bumper system was characterised by FE analyses based on the FMVSS 581, which regulates automotive bumpers. Two types of cross-sectional designs, i.e., Model 1, which contains a single rib and Model 2, double ribs, have been considered along with Al7021, 6082 and 6060 for the aluminium bumper back beam. Variations in thickness starting from 2 to 4 mm of the bumper system cross-section in the FE model was implemented in order to investigate the thickness effect on the bumper's crash behaviour.. Three kinds of design variables, namely, number of ribs, material and thickness, are considered. The FE analysis results are summarised with the maximum load and the Specific Energy Absorption (SEA) since they are the key factors in determining the crashworthiness of automotive structures. The results may also be able to indicate how to achieve lightweight structure of the automotive bumper system either directly or indirectly.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.30 no.3
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• pp.280-291
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• 2020

Objectives: Hazard classification is a controversial issue in the new MSDS system in which chemical companies have to prepare and submit MSDS for chemicals that they manufacture or import to the competent authorities according to the amended Occupational Safety and Health Act. The aim of this study is to suggest how to apply and manage harmonized hazard classification criteria and results by investigating current hazard classification systems and trends. Methods: The domestic issues about different hazard classification criteria and results were investigated by reviewing the literature and business outcomes regarding KOSHA. We also checked official and unofficial reports from the UN to understand international discussion about the topic. Chemical hazard classification results from agencies providing chemical information were analyzed to compare a harmonized rate between classifications. Furthermore, a field survey of a few chemical companies was conducted. Results: Under the related competent authorities, an integrated standard proposal was developed to harmonize the domestic hazard classification criteria. Although harmonized chemical information is strongly needed, we recognized the uncertainty and difficulty of harmonized hazard classification from the UN global list project review. In practice the harmonization rate of the classification was generally low between the classification in KOSHA, MoE, and EU CLP. Among hazard classes, health hazards largely led the disharmony. The field survey revealed a change of perception that the main body of chemical information production is manufacturers. Approaches and solutions about hazard classification issues differed depending on business size, types of chemical handling, and other factors. Conclusions: We proposed reasonable ways by time and step to apply hazard classification in the new MSDS system. Chemical manufacturers should make and offer chemical information including responsible hazard classifications. The government should primarily accept these classifications, evaluate them by priority, and support or supervise workplaces in order to communicate reliable chemical information.

• Journal of Oriental Neuropsychiatry
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• v.21 no.3
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• pp.1-18
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• 2010

Objectives : This study was performed to develop a standard instrument of oriental medical evaluation for jing ji and zheng chong. Methods : The advisor committee on this study was organized by 17 neuropsychiatry professors of oriental medical colleges. The items and structure of the instrument were quoted from the instrument of pattern identification for jing ji and zheng chong. We took consultation twice from the advisor committee and we also took additional advices by e-mail. Results : We discriminated between bian-zheng and su-zheng from the answers of the advisor committee. We got the mean weight of each symptom and sign from the answers of the advisor committee. We got the final weight from the combination of the ratio of bian-zheng to the number of all answers of the advisor committee and mean weight. Conclusions : The instrument of oriental medical evaluation for jing ji and zheng chong was developed through experts' discussion. If the validity and reliability of this instrument is confirmed through additional clinical trial, the instrument of oriental medical evaluation for jing ji and zheng chong is expected to be applied to the subsequent research.

• Journal of Physiology & Pathology in Korean Medicine
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• v.24 no.6
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• pp.1094-1098
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• 2010

With the high prevalence of functional dyspepsia in the world, it was difficult to get objective diagnosis, treatment and assessment for the reason that there were many different symptoms and signs. The purpose of this study is to develop a standard instrument of pattern identification for functional dyspepsia which will be applied to clinical research. The items and structure of the instrument were based on review of published literature. The advisor committee on this study was organized by 11 oriental division of gastroenterology professors of oriental medical colleges nationwide. The experts discussed developing the instrument, and we also took professional advices by e-mail. We divided the symptoms and signs of functional dyspepsia into 6 pattern identification, such as disharmony of liver and stomach, retention of undigested food, damp-heat in the spleen and stomach, simultaneous occurrence of cold and heat syndromes, deficiency and cold of the spleen and the stomach, and insufficiency of stomach eum. We got the mean weights to each symptom of six pattern identification which had been scored on a 5-point scale ranging from 1 to 5 by the 11 experts. We made out the Korean instrument of the pattern identification composed of 45 questions for functional dyspepsia. Although there are some limitations in our study, the instrument is meaningful and certain worth of its own. We hope to improve the instrument through the further clinical studies and discussions.

• The Journal of Korean Medicine
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• v.33 no.3
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• pp.82-94
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• 2012

Objectives: The aim of study was to develop a standard clinical oriental medicine evaluation instrument for chronic obstructive pulmonary disease (COPD). Methods: We appointed 10 respiratory professors of oriental medicine as the advisory committee. The committee was organized and met several times to discuss the patterns of syndrome differentiation (辨證) and its items based on clinical symptoms of COPD patients and review of published literature. Then the committee investigated the importance of items by e-mail and decided the weight and final weight, respectively. Results: According to the answers and conferences, we determined the Korean oriental medical assessment tool for COPD comprised of the 7 type of patterns of syndrome differentiation which have 9 items with the mean weight and final weight of each item, respectively. Conclusions: This Korean oriental medical assessment tool for COPD was newly developed through expert consensus. We expect to apply this tool to subsequent research as its validity and reliability is further confirmed.

• Journal of Korea Entertainment Industry Association
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• v.14 no.8
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• pp.35-48
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• 2020

This study aims to find out the implications of the Chinese cultural industry by analyzing the successful factors of the IP acrobatic stage drama "Mongjiryeo," which was well received through internal and external performances by creating acrobatics repres enting traditional Chinese culture as a stage play that conforms to the trend of modern society. Th e findings are as follows. First, China's cultural industry grew and developed quantitatively and qualitatively based on the government's active promotion policy and the huge domestic market. Second, through challenges and changes to traditional culture such as acrobatics and costumes, creative standard presentation and practical experience were attempted as modern stage plays. Third, Oriental humanities ideas and emotions were introduced amid the reform and innovative changes of traditional culture. The results of this study will enable various free interpretation and expansion from a humanities perspective. And it could be used as a reference material for the study of the creation of new culture utilizing the analysis and approach of the traditional Chinese cultural archetype.

• The Journal of Society for e-Business Studies
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• v.8 no.2
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• pp.99-111
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• 2003

By virtue of diverse advantages derived from digital media, eBook is getting started to use. And many market research agencies have predicted that its market will be greatly expanded soon. But against those expectations, copyright-related problems and the difficulties of its accessing inherited from various eBook content formats become an obstacle to its diffusion. The first problems can be solved by DRM technology. And to solve the second problems, each nation has published its own content standard format. But the domestic standards are useful only the domestic level, they still leave the problems in the national level. The variety of content formats has created a demand for mechanisms that allow the exchange of eBook contents. Therefore we study the mapping relations between eBook contents for conversion. To define the mapping relations, first we extract the mapping both between eBook contents and between normal XML documents. From those mappings, we define seven mapping relations and classify them by cardinality. And we analyze the classified relations, which can be generated by automatic, or not. Using these results, we also classify the eBook content conversion as automatic, semi-automatic, and manual. Besides, we provide the conversion templates for mapping relations for automatic generation of conversion scripts. To show the feasibility of conversion templates, we apply them to the eBook content conversion. Experiment shows that our conversion templates generate the conversion scripts properly. We expected that defined mapping relations and conversion templates can be used not only in eBook content conversion , but also in normal XML document conversion.

• Proceedings of the CALSEC Conference
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• 1998.10a
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• pp.149-161
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• 1998

For the purpose of developing CALS/EC, it was surveyed ISO/IEC 12207 that was international standard and IEEE/EIA 12207 that was national standard in U.S.A and then peformed analysis comparing with MIL-STD-498 it was called origin of DoD software development process. Also it was surveyed software life cycle Process using doemstic defense area now Software life cycle process based on MIL-STD-498 in defense area was not yet includ the concept of new development philosophy like iterative development and process management according to the characteristics of project. For the purpose of improving software life cycle in defense area, first refined the process. And then on this study it was recommended accomodation of incremental and evolutionary development approach and the method of tailoring based on MIL-STD-498 was able to select and apply the process on the characteristics of project.