• Proceedings of the KSME Conference
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• 2003.04a
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• pp.585-590
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• 2003

The distributions of mass flow rate and pressure are major factors to deside the performance of a proton exchange membrane fuel cell (PEMFC). These factors are affected by channel configuration of air plate. In this paper. structural analysis is performed to investigate deformation of porous media. Two kind of models are suggest for flow analyses. Deformed porous media and undeformed porous media are considered for air plate model. The Numerical flow analysis results with deformed porous media and undeformed porous media had some discrepancy in pressure distribution. The pressure and velocity in a working condition are numerically calculated to predict the performance of the air plates. Distributions of the parameters in the PEMFC are analyzed numerically under steady-state conditions.

• Geomechanics and Engineering
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• v.9 no.1
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• pp.15-24
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• 2015

The porosity is often regarded as a linear function of fluid pressure in porous media and permeability is approximately looked as constants. However, for some scenarios such as unconsolidated sand beds, abnormal high pressured oil formation or large deformation of porous media for pore pressure dropped greatly, the change in porosity is not a linear function of fluid pressure in porous media, and permeability can't keep a constant yet. This paper mainly deals with the relationship between the damage variable and permeability properties of a deforming media, which can be considered as an exploratory attempt in this field.

• Journal of Korean Society of Archives and Records Management
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• v.12 no.3
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• pp.7-28
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• 2012

It is very important to understand changing technological environment such as information big bang, mass production of electronic records, and emergence of many storage media for the sake of promoting reliable electronic records management system. This study examined the insufficiency of current archives acts and standards, and compared to recording storage media and related technologies. Through these analyses, this paper proposes the revision of archives acts and standards such as the expansion of types of media, the elaboration of guidance for media selection. and the efficient maintenance plan for recording media.

• Journal of Fisheries and Marine Sciences Education
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• v.25 no.2
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• pp.448-457
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• 2013

The media is an effective means of preventing crime. It can be known to members of the media presiding over the most widely and rapidly. Because of this, the mass media is a good way to prevent such crime. Related to general crime, marine crime will have unique characteristics and about Crimes reported by the media, it is also true. The results of this study are as follows. Firstly, it is required that the more accurate present article must be published and reported. Secondly, for more accurate presentation of measure, there is a need to enhance professional training for reporters. Thirdly, the marine weather report is the most important political purpose of considering marine crime prevention. Forthly, marine crime is likely to be a lack of evidence. Therefore, in order to supplement the lack of evidence maritime security agency should be utilized for a news source.qualification Fifthly, the need for regular inspection of the articles is requested. Sixthly, for judicial control maintenance of the media related laws should be strengthened. Finally, the arbitration institution for media rights should be established under the Korea Ministry of Land Infrastructure and Transport. This is practical action for marine crime prevention.

• Korean journal of communication and information
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• v.31
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• pp.113-165
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• 2005

The research focused on the return of class analysis of the media soctor. It is told that class is a determining factor of media industry. This article is divided in to four sections that represent class analysis of media. In this study, I claimed that class analysis is necessary of understanding the nature of media industrial capital and its nature. With their domination of the media, big corporations seek to control political power and information. This article has demonstrated that the media power of corporations should be curved.

• Korean journal of communication and information
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• v.48
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• pp.306-325
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• 2009

This Study aims to thesis the purpose and educational methodology of media education for senior citizens. As background research, current situation and agendas regarding the media education for senior citizens were investigated. In further, quantative focal interview method was deployed to analyze recognition of teaches and education participants in media education for senior citizens. Focal interviews basis on the purpose, problems of education environment, preferred education method and suggestions of media education. The focal interview lead to in-depth opinion relying on experience of teachers and education participants. This study is expected to present the basis data for future theoretical systemization of neglected classes and for seeking educational utilization methods.

• Korean journal of communication and information
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• v.22
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• pp.39-75
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• 2003

This essay begins with the following questions; "What is a fundamental source of media power?" and "How can the media power dominate market?". This essay aims at answering the questions. I made my selection of countries such as Venezuela, Italy and UK for this article with a political economic approach. This analysis found evidence that an enormous conglomerate ownership, and alliance or convergence between media and political power are two fundamental source of the media power. With the integration of newspaper and television the media monopoly increased their supplies and political influences as I have shown. Despite the growing threat of media monopoly power to democracy and public interest, in recent years, governments worldwide have chosen to ease regulations.

• International Journal of Industrial Entomology and Biomaterials
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• v.5 no.2
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• pp.217-220
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• 2002

Mulberry being a foliage crop is grown extensively for feeding of silkworms and are also used for cattle feeding. These loaves are highly nutritious, which contain various mineral elements and bio-molecules such as carbohydrates, proteins, lipids and other essential amino acids, etc. In the present study, deproteinized mulberry leaf juice was used for preparation of the medium for cultivation of various types of microbes. Results revealed that deproteinized mulberry leaf juice medium is best for isolation of fungi, bacteria and actinomycetes and this medium can be substituted with synthetic media, which are haying the costly ingredients for isolation and identification of bacteria, fungi and actinomycetes. Further, this deproteinized mulberry juice medium can also be used in mass multiplication of useful/beneficial microbes to enhance soil microflora to improve soil fertility and to avoid root diseases. Perspective enterprises can take up the mass multiplication/large-scale production of useful microbes such as Trichoderma, Rhizobium, Pseudomonas and Bacillus to use in mulberry and in other agricultural crops using deproteinized mulberry leaf juice.

• Journal of the Korean housing association
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• v.17 no.4
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• pp.131-143
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• 2006

Nowadays, diverse mass media discovers and introduces outstanding management cases of apartment complexes to induce vital competitions of constructors and active participation of residents to apartment management. This study statistically analyzed the management issues of outstanding apartment complexes that have been introduced by mass media with lexical criteria to examine the characteristics of their exemplary management. The key issues of outstanding apartment management are summarized as: efficient management of convenient facilities for residents, community activities based on residents' participation, and maintenance of pleasant living environments through transparent management. Also, the result of the relation arrangement of co-occurrence word from a Social Network Analysis included three key concepts of multi-family housing management - Maintenance Management, Operating Management, and Community Life Management - with emphasis on 'residents' and 'apartment complexes.' However, Operating Management was relatively deemphasized.

• Proceedings of the Korea Contents Association Conference
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• 2003.11a
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• pp.454-459
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• 2003

Nowadays comic strip(or comics) has surpassed its limits as a role of humor and amusement. And it has firmly established its role as a kind of public information and mass media. Furthermore it is used as materials for effective learning and human nature education to prevent the problems caused by rapid changes, and means to lessen or relax stress. The author will examine the specific ability, characteristics and potential of comics in this modem society. This paper will discuss the results caused by comic strip and show the possibility that comics can achieve the aim as a mass media