• 항공우주시스템공학회지
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• 제9권2호
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• pp.25-33
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• 2015

Global market of unmanned aircraft(UA) is rapidly expending based on the versatile and efficient utility of the UA. Domestically many industries, universities and research institutes are trying to do research and development of the UA in various angle of aspect. In spite of these effort, all the participants of research and development of the UA has been suffering the difficulty of acquiring the airspace around vicinity of Goheung airfield for the flight test of UA. Although the current procedure of execution of the flight test of UA is set after acquiring the airspace by applying the NOTAM(Notice To Air Man) to the Ministry of Land, Infrastructure and Transport(MLIT) at least 7 days before the flight test and commencing with the publication of the NOTAM by MLIT, if the flight test is carried out as planned, changing or reapplying the NOTAM expends mort time and makes difficulty often. Therefore it is needed that a restricted airspace for the flight test of UA is established and make all the executioner of flight test uses the exclusive airspace without limitation. This research proposes the restricted airspace with short term and long term establish requirement of airspace separately. The short term requirement has been established with the airspace of 10 nm radius and 8,000 ft altitude in which the requirements of flight test can be carried out more than 90% without needs of supplement of the additional airspace. The long term has been established within the airspace of 30 nm radius which is the maximum Radio Line Of Sight(RLOS) and 8,000 ft altitude with exclusion of current air way, airport control area, approaching corridor to the airport, existing restricted area(RA) and Military Operating Area(MOA) for the purpose of minimizing inconvenience of the other airspace user. Once establishing the exclusive airspace for the flight test of UA, research and development of industries, universities and research institutes will be more vigorous and contributes to the national economy.

• 한국지능시스템학회논문지
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• 제11권5호
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• pp.426-432
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• 2001

본 논문은 진화형 하드웨어를 이용하여 생물의 정보처리 시스템인 셀룰라 오토마타 신경망의 구현에 관한 연구이다. 셀룰라 오토마타 신경망은 진화 및 발생을 기반으로 한 신경망 모델이다. 진화는 다양성을 주요 근원을 제공하는 돌연변이 및 재 조합 비율에 의하여 비결정론이며, 발생은 결정론 적이며 지역적인 무리현상을 따른다. 셀룰라 오토마타 신경망은 셀룰라 오토마타에 의해 신경망 내부의 각 셀의 상태를 발생시키고, 초기 셀을 유전자 알고리즘의 개체로 간주하여 초기 셀이 진화 알고리즘을 통해 진화함으로써 신경망이 진화하는 시스템이다. 본 논문은 이 시스템을 진화형 하드웨어 이용하여 하드웨어로 구현하였다. 진화형 하드웨어는 진화 알고리즘과 재구성하드웨어의 결합체이다. 즉, 재구성 하드웨어의 구성에 필요한 bit를 유전자 알고리즘의 개체로 간주한 것이다. 진화 알고리즘을 수행하기 위해 유전자 알고리즘 프로세서를 설계하였으며, 셀룰라 오토마타 신경망이 유전자 알고리즘의 개체와 셀룰라 오토마타 룰에 의해 자동적으로 신경망을 생성하기 위해 신경망을 이루는 셀들로 설계하였다. 제안된 시스템의 효율성을 검증하기 위해 Exclusive-OR 문제에 적용하였다.

• 한국콘텐츠학회논문지
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• 제10권3호
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• pp.32-43
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• 2010

IPTV(Internet Protocol Television)는 다양한 멀티미디어 콘텐츠를 인터넷을 통하여 TV로 제공하는 방송과 통신이 융합된 기술이다. 방송을 송신하는 측은 멀티캐스트 방식으로 스크램블된 방송콘텐츠를 전송하고, 수신료를 지불한 가입자만이 인증 과정을 거쳐 스크램블된 방송콘텐츠를 디스크램블하여 수신 할 수 있어야 한다. 일반적으로, 가입자 인증은 TV에 연결된 셋톱박스 (STB, Set-Top Box)와 스마트카드 기반으로 이루어지는데, 2004년 Jiang et al.이 관련 프로토콜을 제안하였고, 이 후에 여러 논문에서 보다 효율적인 프로토콜들이 제안되었다. 하지만, 이 프로토콜들은 모두 메모리와 계산 능력에 제한이 있는 스마트카드에 부담을 주는 모듈라 멱승 계산을 하도록 되어 있다. 본 논문에서는 해쉬함수와 exclusive-or 연산만을 이용한 효율적인 셋톱박스와 스마트 카드 간의 인증 및 키 교환 프로토콜을 제안하고, 제안하는 프로토콜이 다양한 공격에 안전함을 보인다.

• 수산해양교육연구
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• 제11권2호
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• pp.150-183
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• 1999

Korea-Japan Fisheries Agreement concluded in 1965 made a contribution to the stable development of fisheries relationship for both countries until the year of 1980. From the time on thereafter a series of respectable fishery disputes occurred throughout the period of fisheries self-regulation in accordance with alteration of home and abroad conditions. And both countries marched into a cooperation era by enforcement of the new fisheries agreement from the 23 January 1999, because the Fisheries Agreement system of 1965 had many limitations to settle the fundamental fisheries problems. In this paper, the author carried out the legal interpretation, arrangement of historical facts and evaluation of actual results of the Korea-Japan Fisheries Agreement of 1965. The key contents of the Fisheries Agreement were the establishment of 12-nautical mile exclusive fishery zone and the joint-control fishery zone under the principles of maintenance of MSY for fishery resources, freedom of high seas and mutual cooperation. The legal foundation of the conclusion of the Fisheries Agreement were the San Francisco Peace Treaty of 1952 and the four International Conventions on the Law of the Sea of 1958. During the 33 years, the fisheries power of Korea made a rapid stride, on the other hand that of Japan was almost stagnated. And in the meantime, there were very important development on the international law of the sea, for instant, the settlement of 12-nautical mile territorial sea regime and the establishment of 200-nautical mile exclusive economic zone regime. Annual meetings of the Joint Fisheries Committee were not successful to fill the role for conservation of fishery resources. The Fisheries Self-Regulation Agreement concluded in 1980 was also insufficient to accept the new international regime on the law of the sea, for that reason it was terminated on 23 January 1999. But it is true that the Fisheries Agreement of 1965 made a contribution to normalization of fisheries relationship between both countries and fisheries development of Korea.

• 한국프랜차이즈경영연구
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• 제11권1호
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• pp.45-60
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• 2020

Propose: The expansion of the delivery market in franchise business is a positive means of advertising and promotion for franchisees and contributes to substantial sales growth for stores. However, unrestricted and uncontrolled delivery sales and business activity of franchisee directly lead to encroachment of business territory between franchisees, resulting in increased operating costs of franchisees and conflicts between franchisees over rights and interests on franchise business. Moreover, in relation to the restrictions on the opening of competitors, it is incapacitating the law intent of prohibiting unfair encroachment of business territory, in the issue of the Fair Franchise Act in regard to guarantee of exclusive sales and business activity rights of franchisee. This study aims to point out major problems arising out of franchisee's infinite competition on delivery sales and business activity that are not restricted or controlled and then suggest legal supplements, policy tasks, and practical implications for improvement on the issues. Literature Review: In franchising business transactions, vertical restraints are associated with the exclusive territory establishment, control of transaction area, restriction of intangible sales and business activity of franchisee. Therefore, in the franchise business, it is necessary to take positive interpretation and application on e-commerce, the area of e-commerce, and delivery trading area and find proper and practical ways, by virtue of constructive attitude of each actor, to reduce the encroachment of business territory and various conflicts caused by unrestricted delivery trading area. Conclusion and suggestion: The finding shows that unrestricted or uncontrolled delivery sales and business activity of franchisees cause encroachment of business territory and many conflicts among franchisees. And this matters also weaken the legislation of the law on the protection of the business territory and can be negative factors that disrupt the protection of identity and sound development of the franchise industry in the long run. Therefore, in the franchise business, it is necessary to take positive interpretation and application on e-commerce, the area of e-commerce, and delivery trading area and find proper and practical ways, by virtue of constructive attitude of each actor, to reduce the encroachment of business territory and various conflicts caused by unrestricted delivery trading area.

• Asian Pacific Journal of Cancer Prevention
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• 제17권7호
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• pp.3643-3646
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• 2016

Management of eyelid cancers is based on surgery and/or radiotherapy (RT). The treatment objective is to control tumors with acceptable functional and esthetic outcomes. The aim of this study was to evaluate the results of radiation therapy in management of epithelial eyelid cancers, reviewing retrospectively the clinical records of patients treated in our institution from January 1989 to December 2013. We focused on clinical and histological features, treatment characteristics, tolerance and disease control. One hundred and eight patients (62 men and 46 women) were enrolled, with a mean age of 61 years [ranges 15-87]. The most frequent tumor location was the inner canthus (42.6%). Median tumor size was 21 mm [ranges 4-70]. Histological type was basal cell carcinoma in 88 cases (81.5%), squamous cell carcinoma in 16 (14.8%) and sebaceous carcinoma in 4 (3.7%). Radiation therapy was exclusive in 67 cases (62%) and post-operative for positive or close margins in the remaining cases. Kilovoltage external beam radiotherapy (KVRT) was used in 63 patients (58.3%) and low-dose-rate interstitial brachytherapy in 37 (34.3%). Eight (7.4%) were treated with cobalt or with a combination of KVRT-cobalt, KVRT-electron beams, KVRT-brachytherapy or cobalt-electron beams. The total delivered radiation doses were 70 Gy (2 Gy/fraction) in 62 patients (57.4%), 66 Gy (2 Gy/fraction) in 37 (34.3%) and 61.2 Gy (3.4Gy/fraction) in 9 (8.3%). After a median follow-up of 64 months, we noted 10 cases of local recurrences(9.2%): 7 after exclusive and 3 after post-operative RT. No local recurrence occurred in patients treated with brachytherapy. Actuarial 5-year local recurrence-free rate, disease-free survival and overall survival were respectively 90%, 90% and 97%. T-stage was found to be a significant factor for recurrence (p=0.047). All acute radiation-related reactions were scored grade I or II. Delayed effects were eye watering in 24 cases (22.2%), eye dryness in 19 (17.6%), unilateral cataract in 7 (6.4%) and ectropion in 4 (3.7%). Radiation therapy and especially brachytherapy is an efficient treatment of eyelid cancers, allowing eye conservation and functional preservation with good local control rates and acceptable toxicity.

• 한국문헌정보학회지
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• 제19권
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• pp.151-188
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• 1990

The aims of automation efforts in libraries are the rationalization of interval work and improvement of user services. After a period of exclusive internal computer utilization, later voluntary contact with the computer (e.g., circulation control with self services), patrons of American libraries now have to go to a computer terminal if they want certain information. Online public access catalogs(OPAC) have been used in American libraries since the end of the seventies. But OP AC are accepted by patron only if they have a useful and flexible user interface. This paper briefly describes the use of online catalogs in different type of libraries, categories of user (user, non-user), aspect of catalog use in context with computer experience etc. The disscussion then focuses on the characteristics of the final report of online catalog use study of Council on Library Resources and user problems in searching, as reported in many other catalog use studies.

• International Journal of Precision Engineering and Manufacturing
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• 제1권1호
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• pp.118-126
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• 2000

Die-casting burr to casting process is removed by post-process for assembly and quality control of product. Though robot has been widely used for deburring job before. CNC exclusive machine is currently developed for high power, high speed machining and quick tool change. Deburring tool path with complex 3D curve type is defined to make out deburring NC program. But there is no efficient method to define it currently used methods with teaching probe on machine. In this study the efficient method to make out deburring NC program is developed. 5-axis digitizing machine is used to receive data of deburring path. And the post process for NC program generation is developed in consideration of the machining conditions. The developed system is not dependent on the skill of operator and has the advantage to maintain the flexibility of job to modify NC program due to the wear of tool and aging of the die casting.

• Clinical and Experimental Pediatrics
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• 제54권7호
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• pp.282-286
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• 2011

Breastfeeding is the best source of nutrition for every infant, and exclusive breastfeeding for 6 months is usually optimal in the common clinical situation. However, inappropriate complementary feeding could lead to a nutrient-deficient status, such as iron deficiency anemia, vitamin D deficiency, and growth faltering. The recent epidemic outbreak of obesity in Korean children emphasizes the need for us to control children's daily sedentary life style and their intakes of high caloric foods in order to prevent obesity. Recent assessment of breastfeeding in Korea has shown that the rate is between 63% and 89%; thus, up-to-dated evidence-based nutritional management of breastfeeding infants to prevent common nutrient deficiencies or excesses should be taught to all clinicians and health care providers.

• 한국유통학회지:유통연구
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• 제1권2호
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• pp.115-140
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• 1996

This study analyses the Chinese and the Russian distribution systems comparatively focusing on the economic system. Before the economic transformation both nations were socialistic planned economy. After the economic transformation China is under the socialistic market economy, and Russia under the capitalistic market economy. The purpose of this study is to see how the distribution systems of both nations were changed according to the transformation of economic system. It analyses the relationship between nationalized manufacturing companies and distribution companies, and the national planned distribution of products before the economic transformation of both nations. It examines the privatization of distribution-related companies and the structurally exclusive supply of manufacturing companies in distribution system in Russia after the economic transformation. It also investigates the institutionalized control of nationalized manufaturing companies over distribution companies, and the national intervention of product pricing in China.