• Proceedings of the Korea Information Processing Society Conference
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• 2010.11a
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• pp.6-9
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• 2010

2007년 Amazon.com이 미국에서 e-Book 전용 단말기 'Kindle'을 출시한 이래, Sony와 대형 서점 Barnes&Noble등 메이저 업체는 물론 다수의 중소업체들이 e-Book 시장에 진출하고 있다. 최근에는 Apple이 iPad를 출시하고 e-Book 시장에 진출한 가운데, Google 역시 6월 이후 e-Book 시장에 진출할 것을 발표함으로써 e-Book 시장의 경쟁이 더욱 치열해지고 있다. e-Book의 급속한 보급증가와 함께 이런 방대한 도서를 관리하는 곳에서 자동 도서 분류의 필요성도 증가하고 있다. 기존의 문서분류 방법들은 대게 수작업, 텍스트(단어)의 집합으로 간주하여 기계 학습방법을 그대로 적용하거나 약간의 변형을 가한 방법들이 대부분 이었다. 본 제안서에서는 데이터 마이닝 분야에서 사용되는 DRFP-Tree 구조를 이용하여 e-Book 내의 문장들의 패턴을 저장하고 이를 사용하여 e-Book을 분류하는 방법을 제안한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.04a
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• pp.1001-1004
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• 2010

보안은 비즈니스 성능에 있어 결정적인 문제점이지만 대게 보안은 비즈니스 프로세스 정의 후에 고려된다. 많은 보안 요구사항은 비즈니스 업무 레벨에 표현될 수 있다. 비즈니스 업무 모델은 그들이 소프트웨어 디자인과 창조를 위해 필요한 요구사항을 잡아낼 수 있기 때문에 소프트웨어 개발자를 위해 중요하다. 게다가 비즈니스 업무의 모델링은 지휘와 비즈니스 운영이 어떻게 개선되는지를 위한 중심이다. 이 논문은 활동 다이어그램을 통해서 안전한 비즈니스 업무를 모델링하기 위한 UML 2.0 확장을 설명한다. 전형적인 건강관리 업무에 이 접근을 적용할 것이다.

• Proceedings of the Korea Information Processing Society Conference
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• 2020.05a
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• pp.138-141
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• 2020

영상 감시 시스템은 광범위한 영역에서 쉽게 설치되고 있으며, 감시 지역을 녹화한 영상 정보는 대게 인터넷을 통한 클라우드 상의 저장소에서 관리하는 중앙 관리 방식을 사용하고 있다. 그러나 이러한 시스템의 주요한 문제점은 저장 영상의 전송 과정과 저장 대해서 객관적으로 신뢰할 수 있는 방법이 제공되지 않고 있으며, 개인정보보호를 위한 장치 유무와 별개로 모든 권한을 서비스 제공자에게 위임한 상태에서 운영하고 있다는 점이다. 본 연구에서는 공개키 기반 암호화와 블록체인 기반의 키 관리 시스템을 조합한 아키텍처를 이용하여 민감한 정보를 사용자가 안전하게 보호할 수 있는 방안을 제시한다. 제안하는 아키텍처에서는 대칭키를 사용한 블록 암호화(block-cipher) 과정을 통해 영상 정보를 암호화하고, 이때 사용하는 대칭키를 사용자의 공개키로 암호화하여 블록체인의 레저(ledger)로 기록하는 기법을 사용한다. 영상정보를 암호화하는 과정을 블록체인 네트워크의 특성(분산, 투명성, 데이터 변조 불가)을 활용하여 개인정보 영상의 생성부터 소멸까지 사용자가 추적이 가능하도록 한다.

• Journal of the Korean Society for Marine Environment & Energy
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• v.14 no.3
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• pp.147-153
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• 2011

This study is to measure the differences of the trace-metals resulted from the different ecologies, such as nickel(Ni), copper(Cu), zinc(Zn), cadmium(Cd), plumbum(Pb), arsenic(As) and chrome(Cr) remaining in the parts of Korean Yeongdeok Crab (KYC) and Russian Snow Crab (RSC) based on ICP-MS. The recovery rate of each metal certified the reference materials (CRM) was in the average of 81~99%, which corresponded with the level required in Codex. The level of metals in the parts of KYC was in the order of Ni > As > Zn > Cu > Cr > Cd in the both male and female shell; the order of Zn > As > Cu > Cr > Ni > Cd in the leg flesh; the order of Zn > As > Cu > Cr > Cd > Ni in the body flesh; the order of Cu > Zn > As > Cd > Cr > Ni in the gill; the order of Cu > As > Zn > Cd > Ni > Cr in the male hepatopancreas; the order of Cu > Zn > As > Cd > Cr > Ni in the female hepatopancreas, thereby showing some differences. It was revealed that the levels of most metals (nickel, copper, zinc, arsenic and chrome) were similar between KYC and RSC except cadmium which was somewhat lower than that of KYC. However, the cadmium in RSC was discovered in high level in most of the parts, two times higher in the hepatopancreas, and four times in the gill. It was also revealed that the trace metal contents were changing according to the size of KYC; the metals with the highest level of Ni in shell, Zn in leg and body flesh, Cu in gill tended to decrease as growing, whereas the cadmium contents tended to increase overall and accumulated the most in hepatopancreas. The results showed there was a possibility that the phenomenon of bioaccumulation within hepatopancreas would increase as growing.

• Journal of Aquaculture
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• v.11 no.3
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• pp.337-344
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• 1998

This paper documented mophological changes of embryonic development and first zoea larvae of snow crab, Chinoecetes opilio. Female crabs were sampled by the Danish seine fishery at the depth about 200m in Sep. 1997 in the eastern coast of Korea. Female with newly berried eggs was reared at the water temperature of 5$^{\circ}C$ till the time of hatching. The results obtained are as follwos. Embryonic development : According to morphogenesis of fertilized eggs, the developemental process of the embryo was classified into the following seven stages : First stage (cleavage and blastula stage, 24 days) Second stage (gastrula stage, 72 days) Third stage (nauplius stage, 22 days) Fourth stage (metanauplius stage, 57days) Fifth stage (stage of a pigmentary deposit in the compound eye, 30 days) sixth stage (chromatophore appearance stage in maxillipede, 56 days) Seventh stage (hatching stage, 36 days) Larvae hatched as prezoeas and they molted to first zoea in about an hour. The first zoea is 4.6 to 5.1mm in length, 3.2~3.6mm in width. The abdomen consists of five segments and a bifurcate telson.

• Investigative Magnetic Resonance Imaging
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• v.16 no.1
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• pp.76-80
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• 2012

Eosinophilic infiltration in the liver is not a rare disease and it is usually presented as multiple, small, ill defined, oval or round, low attenuated lesions on portal phase of computed tomography. We reported case of hepatic eosinophilic infiltration in the liver, as an unusual manifestation of segmental involvement.

• Journal of Korean Ophthalmic Optics Society
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• v.7 no.2
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• pp.89-93
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• 2002

The physiology and morphology of cornea has effected on the ocular refractive status. Therefore the measurement of the anterior corneal surface by keratometer is used the treatment of the spectacles and contact lens by optician, optometrist, and ophthalmologist. Furthermore, currently the most corneal topographic mapping system have used the clinical optical shop, eye research center, and eye hospital. Because this method have a very fine data comparative to the previous instrument. The authors have measurement the cornea of the man college students by the corneal topographic mapping method. Especially this data will applied the clinical practice for the contact lens fitting. Especially in Korea, many man college students use the contact lens for the visual acuity and a beauty. Therefore the contact lens wear have increase per every year.

• The Journal of Fisheries Business Administration
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• v.51 no.3
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• pp.33-47
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• 2020

This study is aimed to prepare the promotion strategy to spawn snow crab resources and create their habitats using SWOT-AHP analysis. Currently, the creation program of spawning and habitat ground (CPSH) of various fisheries resource is a continuing process, however, none of these CPSH can be labeled as being effective in Korea. In order for CPSH to be effective, it must be planned systematically. Therefore, it is necessary for establishing promotion strategy on the CPSH. SWOT-AHP analysis is used to improve explanation ability of SWOT analysis. In this research, we suggested three strategies and 15 implementation plans of the CPSH using SWOT-AHP analysis. It is expected that the economic feasibility, ecosystem and recovery of fisheries resources will improve significantly. Consequently, to increase the performance of CPSH, it is necessary to focus on the developing an efficient and executive promotion strategy on the CPSH.

• Proceedings of the Korean Institute of Resources Recycling Conference
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• 2005.10a
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• pp.271-275
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• 2005

Pine bark, chinese cabbage, crap shell which are used for removing metal ions from aqueous solutions. The removal of metal ions from aqueous solution by adsorption and ion exchange on bio residues was studied. Biosorption of $Cu^{2+},\;Ni^{2+},\;Pb^{2+}$ were compared. Adsorption ability different for the factors [adsorption time, adsorbent weight, initial concentration] and all experiments pH variation were investigated. It was shown that chinese cabbage has higher metal removal ability than other materials The pH variation of metal solution were investigated according to the influences of the initial concentration and weight adsorbents.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.39 no.6
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• pp.437-440
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• 2006

To develop natural crab-like flavorants from red snow crab Chionoecetes japonicus cooker effluent (RSCCE), the flavor was analyzed during the concentration of RSCCE up to $40^{\circ}Brix$. Using solid phase microextraction (SPME)/gas chromatography (GC)/mass selective detection (MSD), 30 volatile flavor compounds were detected in four RSCCE samples (10, 20, 30, and $40^{\circ}Brix$). These comprised 12 aromatic compounds, 5 N-containing compounds, 2 5-containing compounds, 2 alcohols, 2 aldehydes, and 7 miscellaneous compounds. The amounts of all volatiles except alcohols and aldehydes increased significantly with the concentration (p<0.05). Of the volatiles detected, the most abundant was a dimethyl trisulfide with an odor like onion/cooked cabbage. Of the N-containing compounds (nutty, roasted peanut-like odor), 2-ethyl-5-methylpyrazine was the most abundant, followed by 2,5-dimethylpyrazine and 2-methyl-5-isopropylpyrazine in that order (p<0.05). The N- and S-containing compounds with characteristic odors detected in this experiment are thought to play a positive role in RSCCE during concentration.