• Title/Summary/Keyword: I-129

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A Study of Online User Identification Based on One-Time Password with Guaranteeing Unlinkability (OTP에 기반한 비연결성을 보장하는 온라인 본인확인에 대한 연구)

  • Kim, Jung-Dong;Cho, Kwan-Tae;Lee, Dong-Hoon
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.21 no.5
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    • pp.129-139
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    • 2011
  • Recently by the privacy & data security law, when a user registers the online membership, we need to take action to check a progress of identification without resident registration number. On the most of websites, I-PIN is used by identification instead of the resident registration number. However, I-PIN causes dangerous situations if someone steals the ID and a password, the personal data can be easy to exposure. In this paper, we propose the OTP, which can solve all these problems by guaranteeing the identification of unlinkability. This type of method would help the process of membership registration without fixed data like ID and a password in online so it would be very useful to security of private data.

The Effect of Addition of Egg Yolk and Sucrose on the pH and Specific Gravity for Heated Egg Albumen (난백의 가열처리에 있어서 난황과 자당 첨가가 pH 및 비중의 변화에 미치는 영향)

  • 황경규;양기원;하정기
    • Korean Journal of Poultry Science
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    • v.19 no.1
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    • pp.1-12
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    • 1992
  • This study was divided into experiment I(129g egg-albumen plus 150g sucrose) and experiment II(161g egg-albumen plus 150g sucrose) which were subdivided into groups treated with 0, 8.71, 17.43 and 26.149 egg yolk. These experiments were incubated in a shaking water bath(5$0^{\circ}C$) with a speed of 92(turnaround) per minute for a period of times. The pH and specific gravity were measured after 2, 4, 6, 8, 10 and 12 hour incubations. The results obtained were as follows: 1. The pH and specific gravity were steadily increased by shaking time, but variably was influenced by the amount of egg yolk and egg-albumen. 2. In the groups treated with egg-albumen, egg yolk, and sucrose of experiments I and II, pH was increased by the amount of egg-albumen in conjunction with shaking time, but specific gravity was decreased. 3. Ten hours after shaking maximum pH 8.60 was shown in the groups treated with 161g egg-albumen : however, in :he groups treated with 129g egg-albumen the maximum pH 8.39 was shown 12 hours after shaking. The different time exhibited maximum pH resulted from the amount of egg-albumen used. 4. The pH specific gravity were higher in the ,groups treated without egg yolk than in the groups with egg yolk. 5. In the experiment I which was added four levels of egg yolk to 1509 of sucrose and 129g of egg albumen, specific gravity(Table 2) had a high (r=0.9692$^{* *}$) correlation with pH (Table 1) and the regression equation between specific gravity and pH (X) was Y=0.050+0.145x. 6. In the experiment II which was added four levels of egg yolk to 150g of sucrose and 161g of egg albumen, specific gravity(Table 4) had a high (r=0.8963$^{* *}$) correlation with pH (Table 3) and the regression equation between specific gravity and pH (X) was Y=0.294+0.110X.10X.

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A Study on the Effect of Problem Based Learning to Improve Students' Ability in Using ICT (학생의 ICT 활용 능력 향상을 위한 문제 중심 학습(PBL)의 효과에 관한 연구)

  • Ahn, Seong-Hun
    • Journal of The Korean Association of Information Education
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    • v.6 no.2
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    • pp.120-129
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    • 2002
  • In this paper, I survey the field which students use ICT and propose a teaching and learning model to improve students' ability in using ICT. Also, I apply it and prove its' effect. Because Problem Based Learning treats ill-structured problem which reflects actuality, Students can pick up the actual knowledge and become verse in general principle or concept which can transmit resemble problem or situation. Therefore, I hope a teaching and learning model which I propose in this paper has an effect to improve students' ability in using ICT.

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A Study on Developing Fashion Items of Korean Image I (한국적 이미지의 패션 상품 개발에 관한 연구 I)

  • 이상은;이영미
    • Journal of the Korea Fashion and Costume Design Association
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    • v.3 no.1
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    • pp.93-115
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    • 2001
  • Korean textile industry is faced a turning point, And the culture of a country itself is getting a main competetive items. Therefore, this study is focused upon developing fashion items of Korean image. For this study purpose, I carried out literature review and questionnaires were surveyed with 129 women, to see how Korean women interested in costume are conscious of Korean image and the way to develop Korean image fashion items. The study results are as follows. 1. To Koreans, the elements of Korean image were Hanbok(Korean traditional cloths) and Saeckdong(traditional multi-coloured stripes), but to foreigners they were national image. 2. To develop competetive fashion items of Korean image, I recommend as follows. - set up a typical key-word of Korean image - promote top designer - globalization of Hanbok - take advantage of 2002 Wold Cup - bring Korean image fashion into vogue to the younger from domestic to abroad - make Korean image into universal fashion - start with accessories, hats, bags, scarves

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The Method of Searching Unified Medical Language System Using Automatic Modified a Query (자동 질의수정을 통한 통합의학언어 시스템 검색)

  • 김종광;하원식;이정현
    • Proceedings of the IEEK Conference
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    • 2003.11b
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    • pp.129-132
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    • 2003
  • The metathesaurus(UMLS, 2003AA edition) supports multi language and includes 875, 233 concepts, 2, 146, 897 concept names. It is impossible for PubMed or NLM serve searching of the metatheaurus to retrieval using a query that is not to be text, a fault sentence structure or a part of concept name. That means the user notice correctly suitable medical words in order to get correct answer, otherwise she or he can't find information that they want to find I propose that the method of searching unified medical language system using automatic modified a query for problem that I mentioned. This method use dictionary that is standard for automation of modified query gauge similarity between query and dictionary using string comparison algorithm. And then, the tested term converse the form of metathesaurus for optimized result. For the evaluation of method, I select some query and I contrast NLM method that renewed Aug. 2003.

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Experimental Research of Change in Magnetic Flux Density Due to Load for Measuring KI (응력확대계수측정을 위한 하중에 의한 자속밀도변화의 실험적 연구)

  • Lee, Jeong-Hee
    • Journal of the Korean Society of Industry Convergence
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    • v.7 no.1
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    • pp.129-132
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    • 2004
  • In order to determine the effective way of measuring the Mode I stress intensity factor, $K_I$, by means of the alternating current potential drop(ACPD) technique for a material containing a two-dimensional surface crack, the change in magnetic flux density above the cracked specimen surface was studied experimentally. The change in magnetic flux in the air above the cracked specimen made of aluminum alloy is measured by changing the load by four-point bending. The magnetic flux in the air is almost not changed by increasing the load in teh specimen. The change in potential drop due to load is not caused by the change in electro-motive force induced in the coiled measuring system. This experimental result agree to the result of theoretical analysis in reference 7).

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HOLOMORPHIC EMBEDDINGS OF STEIN SPACES IN INFINITE-DIMENSIONAL PROJECTIVE SPACES

  • BALLICO E.
    • Journal of the Korean Mathematical Society
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    • v.42 no.1
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    • pp.129-134
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    • 2005
  • Lpt X be a reduced Stein space and L a holomorphic line bundle on X. L is spanned by its global sections and the associated holomorphic map $h_L\;:\;X{\to}P(H^0(X, L)^{\ast})$ is an embedding. Choose any locally convex vector topology ${\tau}\;on\;H^0(X, L)^{\ast}$ stronger than the weak-topology. Here we prove that $h_L(X)$ is sequentially closed in $P(H^0(X, L)^{\ast})$ and arithmetically Cohen -Macaulay. i.e. for all integers $k{\ge}1$ the restriction map ${\rho}_k\;:\;H^0(P(H^0(X, L)^{\ast}),\;O_{P(H^0(X, L)^{\ast})}(k)){\to}H^0(h_L(X),O_{hL_(X)}(k)){\cong}H^0(X, L^{\otimes{k}})$ is surjective.

이종접합 태양전지용 p a-Si:H 에미터 층 최적화 및 태양전지 특성 거동 연구

  • Kim, Kyung Min;Jeong, Dae Young;Song, Jun Yong;Park, Joo Hyung;Oh, Byung Sung;Song, Jinsoo;Lee, Jeong Chul
    • 한국신재생에너지학회:학술대회논문집
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    • 2011.05a
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    • pp.129.2-129.2
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    • 2011
  • 본 연구에서는 a-Si:H/c-si 구조의 이종접합 태양전지의 p a-Si:H 에미터 층의 박막 조건에 따라 태양전지 특성을 연구하였다. p, n-layer는 PECVD (Plasma-enhanced chemical vapor deposition) i-layer는 HWCVD(Hot wire chemical vapor deposition), ITO는 RF 마그네트론 스퍼터링법으로 제작하였다. p-layer의 도핑 농도, 기판 증착 온도, 증착 높낮이에 따라 특성을 비교 분석 하였다. QSSPC로 minority carrier life time, 자외 가시선 분광분석 장치로 투과 반사도를, Ellipsometer로 흡수 계수, 두께, FTIR로 막의 구성요소 등의 변화를 조사하여 개선된 p a-Si:H의 특성이 이종접합 태양전지에서 효율향상에 영향을 주는지 Photo IV와 EQE를 통하여 조사하였다.

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Mutation Spectrum of 1, 2-Dibromo-3-chloropropane, an Endocrine Disruptor, in the lacI Transgenic Big $\textrm{Blue}^{(R)}$ Rat2 Fibroblast Cell Line.

  • Kim, Youn-Jung;Chai, Young-Gyu;Lee, Kilchul;Kyounghee Oh;Ryu, Jae-Chun
    • Proceedings of the Korea Society of Environmental Toocicology Conference
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    • 2001.05a
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    • pp.129-129
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    • 2001
  • 1,2-Dibromo-3-chloropropane (DBCP), a soil fumigant against nematodes, is a genotoxic carcinogen and also is classified by World Wildlife Fund as endocrine disruptors. DBCP has been extensively studied on genotoxicity, carcinogenicity, and damage in male reproductive-related organs. However, information on precise mechanism of mutagenesis and carcinogenesis of DBCP is yet unknown. (omitted)

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A Cache Management Technique Based on Eviction Cost Estimation for Heterogeneous Storage Devices (이기종 저장장치를 위한 제거 비용 평가 기반 캐시 관리 기법)

  • Park, SeJin;Park, ChanIk
    • IEMEK Journal of Embedded Systems and Applications
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    • v.7 no.3
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    • pp.129-134
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    • 2012
  • The objective of cache is to reduce I/O access of physical storage device so that user accesses their data faster. Traditionally, the most important metric to measure the performance of cache is hitratio. Thus, when the cache maintains hitratio high, it is regarded as a good cache replacement policy. However, the cache miss latency is different when the storages are heterogeneous. Though the cache hitratio is high, if the cache often misses with low performance disk, then the user experiences low performance. To address this problem we proposed eviction cost estimation based cache management. In our result, the eviction cost estimation based cache management has 10~30% throughput improvement compared with LRU cache management.