• International Journal of Computer Science & Network Security
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• v.23 no.10
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• pp.107-114
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• 2023

The study provides the identification of vulnerabilities in the security issues by Wireless Network. To achieve it the research focus on packet flow analysis, end to end data communication, and the security challenges (Cybercrime, insider threat, attackers, hactivist, malware and Ransomware). To solve this I have used the systematic literature review mechanisms and demonstrative tool namely Wireshark network analyzer. The practical demonstration identifies the packet flow, packet length time, data flow statistics, end- to- end packet flow, reached and lost packets in the network and input/output packet statics graphs. Then, I have developed the proposed model that used to secure the Wireless network solution and prevention vulnerabilities of the network security challenges. And applying the model that used to investigate the security challenges and vulnerabilities of cloud computing services is used to fulfill the network security goals in Wireless network. Finally the research provides the model that investigate the security challenges and vulnerabilities of cloud computing services in wireless networks

• Journal of Educational Research in Mathematics
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• v.11 no.2
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• pp.363-384
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• 2001

The purpose of this thesis is, through analysing the characteristics of the definitions in Korean school mathematics textbooks, to explore the levels of them and to make suggestions for definition - teaching as a mathematising activity, Definitions used in academic mathematics are rigorous. But they should be transformed into various types, which are presented in school mathematics textbooks, with didactical purposes. In this thesis we investigated such types of transformation. With the result of this investigation we tried to identify the levels of the definitions in school mathematics textbooks. And in school mathematics textbooks there are definitions which carry out special functions in mathematical contexts or situations. We can say that we understand those definitions, only if we also understand the functions of definitions in those contexts or situations. In this thesis we investigated the cases in school mathematics textbooks, when such functions of definition are accompanied. With the result of this investigation we tried to make suggestions for definition-teaching as an intellectual activity. To begin with we considered definition from two aspects, methods of definition and functions of definition. We tried to construct, with consideration about methods of definition, frame for analysing the types of the definitions in school mathematics and search for a method for definition-teaching through mathematization. Methods of definition are classified as connotative method, denotative method, and synonymous method. Especially we identified that connotative method contains logical definition, genetic definition, relational definition, operational definition, and axiomatic definition. Functions of definition are classified as, description-function, stipulation-function, discrimination-function, analysis-function, demonstration-function, improvement-function. With these analyses we made a frame for investigating the characteristics of the definitions in school mathematics textbooks. With this frame we identified concrete types of transformations of methods of definition. We tried to analyse this result with van Hieles' theory about levels of geometry learning and the mathematical language levels described by Freudenthal, and identify the levels of definitions in school mathematics. We showed the levels of definitions in the geometry area of the Korean school mathematics. And as a result of analysing functions of definition we found that functions of definition appear more often in geometry than in algebra or analysis and that improvement-function, demonstration-function appear regularly after demonstrative geometry while other functions appear before demonstrative geometry. Also, we found that generally speaking, the functions of definition are not explained adequately in school mathematics textbooks. So it is required that the textbook authors should be careful not to miss an opportunity for the functional understanding. And the mathematics teachers should be aware of the functions of definitions. As mentioned above, in this thesis we analysed definitions in school mathematics, identified various types of didactical transformations of definitions, and presented a basis for future researches on definition teaching in school mathematics.

• Journal of the military operations research society of Korea
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• v.34 no.3
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• pp.41-51
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• 2008

Advanced high-tech weapons have enormous affect on combat strength in modern warfare. However, lack of maintenance can cause decrease in equipment operating rate as well as decrease in expectation on demonstrative effect of combat strength during wartime. Therefore it is essential for combat readiness that the optimum requirement of equipment maintenance cost are forecasted and included in the budget. In this paper, the trend of equipment maintenance cost about K-111 1/4t military vehicle is first analyzed by evaluating the performance data of field operation. Secondly, based on above analyzed results, the forecasting model of equipment maintenance cost is designed. Finally, by applying this forecasting model, suggestion and estimation method of equipment maintenance cost have presented for the foreseeable future.

• Journal of the Korean Society of Costume
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• v.58 no.3
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• pp.1-18
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• 2008

The tendency of exuberant multi-everything, enormous volumes and decoration has been showed in fashion since the 21st century. This tendency is very interesting in contrast to the tendency of restraint, simplicity and removing decoration which has been showed in the modern fashion throughout the 20th Century and especially minimalism fashion in the 1960s and the 1990s with the expectation of New Millenium. Maximalism is this kind of exuberant expression emerged since 2000. However, studies about maximalism in fashion have not been performed enough. Thus this study tried to analyze the aesthetic characteristics of maximalism in the modern fashion according to the previous studies of maximalism in design and architecture with social cultural background. The scope of this study was from 2000 to 2006, and this study was performed through literature survey with demonstrative analyzation of fashion collection photographs. The results are as follows; Maximalism has the meaning of 'maximum oriented-ism' and has aesthetic view of 'more/bigger is more beautiful.' The formativeness of maximalism in modern fashion was analyzed as fusion, enlargement, decoration, and fantasy. The internal meaning was analyzed as recovery of human being through pursuing of sensibility, fun and newness.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.22 no.4
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• pp.248-257
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• 2010

An exhausted heat recovery system for a small gas engine cogeneration plant was investigated. The system was designed and built in a 300 kW class cogeneration demonstrative system. The basic performance was tested depending on load variation, and installed to a field site as a bottoming heat and power supply system. The exhaust gas heat exchangers (EGHXs) in shell-and-tube type and shell-and-plate type were tested. The entire efficiency of the cogeneration system was estimated between 85 to 90% under the 100% load condition, of which trend appears higher in summer due to the less thermal loss than in winter. Power generation efficiency and thermal efficiency was measured in a range of 31~33% and 54~57%, respectively.

• Journal of Science of Art and Design
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• v.1
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• pp.227-266
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• 1999

The idea of identification have become a subject of discussion ever since the time man started to contemplate on the meaning and value of his being. However, the concept of identity defined by theorists such as sociologists or cultural historians influence the consumption pattern of the major consumer group, in conjunction with the advent of the mass consuming age. The conflict and mutual realization among variable generations and residential areas of different. consumer levels profoundly affect the formation of the identity of the new generation and the role and experience of women. This series of transit is progressing more rapidly due to the characteristic situation of the expiration of a millenium. Advertising strives to control our interests and ideas on the products we choose to use and affects our identity by manipulating images of successful people. People tend to be influenced more significantly by the mass-culture than by people around them, such as family or friends, in rendering their self?identity; in which process, adopting the identity produced by mass-media and advertising. Such identity is conducted partly of the product identity and the stereotyped image suggested by mass-media. This study bears significance in the attempt to provide actual data and expand the realm of ideas and planning in future advertising through demonstrative analysis of self-identity creative in Korean TV advertising.

• Culinary science and hospitality research
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• v.9 no.1
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• pp.22-38
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• 2003

This study divided all cooking-related employees into hotel organization and family restaurant organization, and analyzed the present duties´ characteristics along with an analysis on population statistics. Also, the study examined each employee´s recognition degree of his/her duty in each group and investigated which knowledge and skill they thought as important parts for their developing ability and attaining duties in the future. The collected data tell the followings; with respect to the characteristics of the employees´ duties, the characteristics of hotel employees were different from those of family restaurant employees; in case of hotel employees, the characteristic items recognized at a high level were the importance of duty, independence, self-reliance, the knowledge degree, career, controlling-ship, and development-ship. On the contrary, in case of family restaurant employees, the highly recognized items were complexity of duty, stagnation-ship, and human relationship. Generally, it was clear that family restaurant employees showed more complaints than hotel employees did in the section of recognition degree on the present duties. The imperfect matter is that this study could not specify particulars or details of knowledge and skills that are necessary to make a perfect food-service company. However, this study will become a basis to develop further research on a perfect supposition and detailed particulars by detailed variables in a demonstrative way.

• Fashion & Textile Research Journal
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• v.12 no.6
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• pp.723-735
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• 2010

The purpose of this study is to analyze the types of Jumoni (pouches), which takes the most quantity of traditional women's handicrafts in China, and examine figurative characteristics of them through demonstrative study focusing on collections of literature and museums. Traditional Jumoni of China included Dae, Nang, Hapo, Tu, Hap, and Chimeui. Its types included a pleated type, a covered type with a lid, an opened type without a lid, and a type that was stitched up after putting objects in it. The Jumoni had various shapes such as a polygon, a circle, and shapes imitating objects. It was used to store cosmetic utensils, sewing supplies, everyday household utensils, valuables, medicinal ingredients, flavoring materials, and so on. It had various figurative characteristics which were different from those of women's handicrafts in Korea. Based on the findings, it aims to provide basic information for developing Korean traditional accessories that make the best of Korean traditional beauty as well as add modern esthetics have both Korean traditional beauty and modern esthetics.

• Journal of Fashion Business
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• v.7 no.2
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• pp.37-54
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• 2003

This study is about the effect of original brand on the evaluation of extended brand in the policy of an enterprise's extending its brand. More specifically, this study investigated to see whether the customers' attitude toward original brand has effect on an extended brand and the width and similarity extent of the brand extension affect a brand which is not similar when another brand is extended. The summary of the demonstrative analysis results are as follows: 1. If the attitude toward original brand becomes more positive, the evaluation of the extended brand will become more positive as well. 2. If the attitude toward original brand becomes more positive, the width of a brand extension will become wider. 3. If customers' attitude toward a original brand is positive, their attitude toward an extended brand will be positive as well although the extended brand is not similar to the original brand. This study proved it is possible for brands to be extended from a original brand under the influence of the original brand even though they are weak in their similarity to their original brand unlike the existing theory which was skeptical about the extension of a brand which is low in its similarity to its original brand and that the success of the extension of a brand does not depend upon its similarity to its original brand.

• Language and Information
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• v.19 no.2
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• pp.55-80
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• 2015

In this paper, I show how oyey 'except' and pakkey 'but' in Korean are semantically different from but/except in English. The exceptive oyey is attached only to a definite NP and shows no restriction on the NP that it is associated with. The referent of the NP is removed from either the restrictor, or nuclear scope, of the associated NP, also giving rise to two different inferences about the exception phrase. The inferences are based on the condition that an expression should make a non-trivial meaning contribution in a sentence. The complement of oyey is really taken to be an exception in one interpretation, but not in the other. The exceptive pakkey is assumed to be a NPI. It does not require a phrase that a pakkey-phrase is associated with. It can be attached to any type of phrases, including a NP. Attached to a full phrase, it is interpreted as a scalar item. Its core meaning contribution is to remove weaker alternatives from the scalar set locally. For a general interpretation, the other meanings are captured globally. A pakkey-phrase with a demonstrative has a conjunctive meaning, and it can be analyzed like oyey in one of the two interpretations.