• 한국통신학회논문지
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• 제37A권9호
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• pp.772-779
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• 2012

현재 MANET에서는 DOS나 DDOS 공격이 증가하고 있지만, MANET은 제한된 대역폭, 계산 자원 및 배터리 전원을 가진 노드들로 구성된 네트워크이기 때문에 기존의 역추적 메커니즘을 적용할 수가 없다. 따라서 MANET에서 역추적 기법을 적용 시킬 시에는 각 노드가 가지는 자원을 효율적으로 사용해야한다. 그러나 기존의 애드혹 네트워크에 적용한 역추적 기법은 클러스터링 영역에서 각 노드를 대표하는 Cluster head가 역추적 정보를 관리하기 때문에 Cluster head의 과부하로 노드의 수명을 단축시키는 문제점을 가지게 된다. 게다가, 다중홉 클러스터링일 경우, 하나의 Cluster head가 더 많은 노드를 관리하기 때문에 문제는 더욱 심각해진다. 본 논문에서는 이러한 Cluster head의 오버헤드를 줄이기 위한, 역추적 정보를 관리하기 위하여 트리구조의 깊이를 이용한 TNA(Traceback against Network Attacks)를 제안한다.

• Asia Marketing Journal
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• 제20권3호
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• pp.1-15
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• 2018

Dongwon Systems established in 1977 to exclusively supply Dongwon tuna cans, the parent company. Instead of its stable management and profits by relying on the parent company, the company was not complacent and started innovating and challenging new markets. Dongwon Systems decided to expand the business area and pioneer new markets so that it becomes the first domestic company to successfully expand into independent businesses other than parent company products. Such success of Dongwon Systems was driven by its differentiated B2B strategies. Unlike the characteristics of usual B2B companies, Dongwon Systems has been thinking both of its client companies and end-consumers. In this case-study, we will explore how Dongwon Systems became the No.1 packaging solution company in Korea through technology innovation in the aspects of unique B2B marketing strategy. The key success factor can be summarized in three ways; product and technology development with customer centric mind-set, systematically extending new markets through business diversification, and marking Southeast Asia as a bridgehead for its global strategy. It is expected that the current case study of Dongwon Systems will be able to provide implications for B2C companies as well as B2B companies that try to expand their business portfolio and global business areas through B2B marketing case analysis.

• 보험의학회지
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• 제1권1호
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• pp.133-139
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• 1984

In the 2,218 healthy cases-male 1,574 female 644-who were conducted serum examination from May 1st 1983 to November 1st 1983 by the medical selection of Dae Han Kyouk life insurance Co., the results which investigated the HBsAg by using the Reverse Passive Hemagglutination(RPHA) method are as follows; 1. The number of 167 from 2,218 cases proved to be positive, showing 7.52%, the number of 143 from 1,574 male positive, showing 9.08%, and the number 24 from 644 female positive, showing 3.73%. The positive rate of the male was indicated by 5.36% higher than that of the female as the former marked 2.4 times higher distribution than the latter. 2) The positive rate by the type of occupations appears as follows; The highest positive rate group is that of discharger from military service in 1983, the number of 70 from 736 persons marking 9.51% and the next is the merchant 8.79%(8/91), employee of a company markes 8.53%(44/516), high school boy 7.69%(19/247), house wife 5.71%(10/210), carrier woman 3.45%(10/290) and the group of the high school girl records the minimum rate of all, 3.13%(4/128). 3. The positive rate by the age group appears as follows; The highest rate group is that of 31 to 35 years, marking 9.80% positive rate, and the next is $26{\sim}30$(9.3%), $21{\sim}25$(8.01%), $41{\sim}45$(6.96%), $36{\sim}40$(6.9%), those below 20(5.99%), 46 to 50 years shows the minimum rate of all(2.94%) Among the male case, 26 to 30 years shows the highest positive rate by 10.59% and female, 31 to 35 years shows the highest rate by 7.89%. 4. The positive rate by the blood type represents as follows; Blood type A shows 7.30%, type B 7.17%, type O 6.11% and type AB indicates 5.88% in order.

• 한국의류학회지
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• 제19권3호
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• pp.483-503
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• 1995

The purpose of this study was to clarify the origin which have misused terms, analyze Its meanings and suggest the unified terms. The content of this study are as follows. The origin of the terms in western dress is different with the areas of cultural influence. Japanese occupied much more than other languages in the apparel industry after the civilization. and English has dominated in the educational filed since 1945 the Liberalization. French, German, Portuguese, Spanish, Dutch are added. These languages came to the clothing field via Japanese and English or directly from the countries. 망토(manteau프), 메리야스(medias스), 러닝셔츠(일) 라사(raxa네), 오트 쿠튀르(Haute Couture 프), 비로드(veludo 포), etc. However the words of foreign origin have misused or corrupted until now a days. 마이 (재킷, 상의), 노 슬립, 소데나시 (슬리브리스, 민소매) 넌라쟈(브래지어), 노타이, 노타이샤쓰(오픈칼라 셔츠, 넥타이를 매지 않은 셔츠) 와이샤쓰(드레스 ttu츠), etc. And also these terms are confused in using because of the word's diversity, the different nationality, change of the marking rules, and the difference between the education and production field terms. On the others hand, this study explained the differences between western costume and Korean costume as the clothing manufacture terms were translated to Korean. bodice-길, collar, neckline-깃, belt, sash-(허리)띠 And then the untied terms were suggested through the comparison production field and educational area (including schools and institutes). lapel, 라펠(학교용어) (학원용어), 가에리 (일) (의류산업 현장용어), 아랫깃(통일어) By the way, this study involved the origin of and misused teams in sewing and presented the unified terms. 미까시 (X)-미 카에시(일) - 안단($\bigcirc$), 이새(X)―홈줄임 ($\bigcirc$) As the above , the characteristics of clothing terms which have misused are Japans,;e, corrupt Japanese, false reports foreign words via Korean, Japanese, compound words of Korean and Japanese, compound words of English and Japanese. And also the words of foreign origin in clothing had the following tendency in the marking system. There are ellipsis of form, sex, timber, grammatical case '-ing', '-ed' in adjective and long vowels express to short vowels. We can see this phenomena as the rule of curtailment labor.

• 한국전자거래학회지
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• 제22권4호
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• pp.129-139
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• 2017

핀테크의 등장으로 인하여 많은 금융 서비스가 모바일 인터넷 환경에서 이용할 수 있게 되었고, 최근에는 온라인으로 모든 은행 서비스를 제공하는 인터넷 은행도 생겼다. 이처럼 인터넷을 통한 금융 서비스의 비중이 늘어남에 따라 사용자들에게 편의를 제공하지만 그와 동시에 금융 전산망에 대한 위협도 증가하고 있다. 이에 따라, 금융 기관들은 침해사고에 대비하여 보안시스템에 많은 투자를 하고 있지만 날이 갈수록 해커에 의한 공격은 정교해지고 있어서 대응하기 어려운 경우도 많다. 본 논문에서는 공격자의 실제 위치를 파악할 수 있는 IP 역추적 기술을 살펴보고 금융 전산망 분석을 통해 IP 역추적 기술을 적용하기 위한 다양한 방안을 제시한다. 그리고 Infra-Structure 구축을 통한 새로운 IP 역추적 방법을 금융 전산망에 적용하는 방법을 제안하고 시뮬레이션을 활용한 실험을 통해 효율성을 증명하고자한다.

• 한국조경학회지
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• 제18권2호
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• pp.95-110
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• 1990

Wang -gok Villages was forming the space marking the centripetal system from frame composed of adjacent mountains and the cosy and comfortable space perccplively and psychologically, and both the openness and closeness existed together The analysis of the circulation structure in the exterior spaces of home showed that generally one must pass through kitchen to approach to the rear yard having the strong decree of enclosure and privacy. The determinants of the space organization in Wang-gok villages and the exterior of its homes were direction and gradient as natural factor, and traditional thought, action and social class as sococultural factors. The configuration of rear garden was classified into flat type, terrace type and mixed type of natural hill and terrace. The rear garden was created purposely and actively, emphasizing the harmony with and approach to nature.

• 오토저널
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• 제2권1호
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• pp.32-38
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• 1980

In the case of a automobile marking skid on road for a period of braking, in general, the automobile velocity just before rapid braking can be obtained by evaluating the coefficient of friction between tires and road. Up to now, the coefficient of friction has been derived from mean velocity measured by a time watch, but the automobile velocity obtained in this manner would be deviated from actual value considerably, due to errors arising from not only measuring time but other various factors. In this paper the presumption method of automobile velocity by accelerometer is presented so as to improve the accuracy of measurement, and to determine the velocity readily. The results obtained in this experiment show that the frictional coefficients between tires and road under the given experimental conditions are considered to take linear relation over the fixed velocity limits 30km/h to 50km/h while for the same limits of velocities the coefficients of friction by the time watch method are not valid ar low velocity range. It will be seen that the former is simple and reliable whilst the latter is cumbersome and unreliable.

• 산업경영시스템학회지
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• 제18권34호
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• pp.1-8
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• 1995

The practical problem of multi-attribute decision making are formed by the uncertain attribute that the attribute by the alternatives cannot be defined or judged crisphy but only as vague. In this case the final judgements are also represented by vague which have to be ordered to determine the optimal alternative. The problem is more complex if the evaluations of alternatives according to each attribute are expresed vague. This paper described the results of a study done to determine how well multi-attribute decision marking perform in helping a decision maker arrive at a preferred solution to a multi-attribute problem with vague attribute. Particular area of research has concentrated on the issue of combining quantitative and qualitative data supplied by estimation. Futher study considers some method for suitable evaluation of qualitative data.

• 한국시뮬레이션학회논문지
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• 제8권2호
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• pp.57-72
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• 1999

With the rapidly increasing complexity of decision-marking or system development in the fields of industry, management, etc., modelling techniques using simulation has become more highlighted. Particularly, the advent of parallel computer systems not only has opened a new horizon of parallel simulation, but also has greatly contributed to the speed-up of the execution of simulation. The implementation of parallel simulation, however, is not a easy job for those who accustomed to the existing computer systems. And it is also necessarily confronted with the problem of synchronization conflict in the process. Thus, how to allow a wider community of users to gain access to parallel simulation while solving synchronization conflicts has become an important issue in simulation study. As a method to solve these problems, this paper is primarily concerned with the implementation of GPSS which is a generally used simulation language for discrete event simulation, onto a parallel computer using C-LINDA. For that, this paper, is to suggest a model and algorithm and to experiment it using a case.

• 복식문화연구
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• 제20권3호
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• pp.430-442
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• 2012

This study focused on how the U.S. apparel companies use social media as a new marking channel. On Facebook Wall the contents of messages in English initiated by companies and consumers were investigated and categorized by using content analysis. Chi-square analysis and t-test were utilized to compare the use of social media by companies with higher and lower business performance. The majority of messages initiated by apparel companies gave their consumers useful information about new products, promotions, and recruiting. On the other hand, messages initiated by consumers contained a variety of content related to companies, users, and products. Apparel companies with lower business performance were more actively engaged in posting messages and responding to consumers. The results will be helpful in employing social media to build new marketing strategies through direct communications with consumers.