• 제목/요약/키워드: library 1.0

검색결과 842건 처리시간 0.026초

Open API 기반 메타 검색시스템의 사용성 평가에 관한 연구 (A Study on the Construction and Usability Test of Meta Search System Using Open API)

  • 구중억;이응봉
    • 정보관리학회지
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    • 제26권1호
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    • pp.185-214
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    • 2009
  • 본 연구는 온라인목록의 Open API 기반 일반 검색시스템과 온라인목록의 Open API 기반 메타 검색시스템을 구축하고 두 실험시스템의 사용성을 비교 평가하여 온라인목록의 Open API 기반 메타 검색시스템의 유용성을 밝히고자 하였다. 사용성은 전체적으로 온라인목록의 Open API 기반 일반 검색시스템 보다온라인목록의 Open API 기반 메타 검색시스템이 더 높게 나타났고, 통계적으로유의한 차이가 있는 것으로 나타났다. 국내 도서관들이 인터넷서점, 검색엔진, 웹포털 등에서 공개한 도서검색용 Open API를 통해 제공되는 풍부한 콘텐트를 온라인목록에서 공유하고 활용하면 서지데이터의 확충, 주제접근과 주제검색 능력의 확대, 메타 검색서비스의 확장, 소장도서의 이용가능성 증대, 목록비용의 절감 등에 도움이 될 것으로 기대된다.

SCAM 기상모델의 성능향상을 위한 LAPACK BLAS 라이브러리의 활용 (Performance Improvements of SCAM Climate Model using LAPACK BLAS Library)

  • 신대영;조예린;정성욱
    • 한국정보전자통신기술학회논문지
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    • 제16권1호
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    • pp.33-40
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    • 2023
  • 슈퍼 컴퓨팅 기술 및 하드웨어 기술의 발달로 수치 연산 방식 또한 고도화되고 있다. 그에 따라 이전 대비 향상된 기상 예측 또한 가능해진다. 본 논문에서는 SCAM(Single-Columns Atmospheric Model, CESM(Community Earth System Model)을 간소화 한 버전)에 포함되어 있으며 대기 연산을 수행하는 적운 모수화 코드, Unicon(A Unified Convection Scheme)의 성능을 향상하기 위하여 소스 코드 내의 선형대수 수치적 연산 부분에 고밀도 선형대수 연산을 위한 라이브러리인 LAPACK(Linear Algebra PACKage) BLAS(Basic Linear Algebra Subprograms)의 level1 함수를 적용할 것을 제안한다. 이를 분석하기 위하여 SCAM의 전체적인 실행 구조도를 제시하고 해당 실행환경에서 테스트를 진행하였다. 기존 소스 코드 대비 SCOPY 함수는 0.4053%, DSCAL 함수는 0.7812%, DDOT 함수는 0.0469%의 성능 향상을 이끌어 내었으며 이를 모두 적용한 결과 기존 소스 코드 대비 0.8537%의 성능 향상을 보였다. 이는 본 논문에서 제안한 고밀도 선형대수 연산을 위한 라이브러리인 LAPACK BLAS 적용 방법이 동일한 CPU 환경에서 추가적인 하드웨어의 개입 없이 성능을 향상시킬 수 있음을 의미한다.

인도 및 파키스탄의 도서관학교육 비교연구 (A comparative study on library and information science education of India and Pakistan)

  • 윤희윤
    • 한국도서관정보학회지
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    • 제13권
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    • pp.167-201
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    • 1986
  • The purpose of this study is to provide the information for the developing rational curriculum that is necessary in the socio-cultural situation by comparativing and analyzing the library and information science education of India and Pakistan. The conclusions of the study can be summarized as follows: 1) It is desirable that Master's degree course and M. Phil. program in India, Post-graduate diploma course and Master's degree course in Pakistan should be integrated as Master's degree course. 2) It is desirable that the duration of Master's degree course should be extended. 3) The variously expressed papers that represented the same subject or content should be unified. 4) In Bachelor's level, India establishes the various papers of library and information science, but Pakistan offers largely the core papers. 5) It is desirable that papers of historical research, progressive reference service, and information science should established, and introductory papers should be united in introduction to library and information science. 6) In Master's degree course, Indian curriculum is more up-to-date and pertinent than Pakistan's. 7) Each university should establish the papers of types of libraries standing for characteristic of his university, and harmonize library science and information science. 8) The reason that curricula of two countries are different from each other is due to lack of inter-university cooperation and standard of curriculum, therefore it is required a continuing research and effort to su n.0, pplement and reorganize the curriculum.

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공공도서관 이용자의 불평행동에 관한 연구 (An Analysis of Complaining Behavior of Public Library Users)

  • 오동근
    • 한국도서관정보학회지
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    • 제32권3호
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    • pp.1-29
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    • 2001
  • 이 연구는 비영리조직이용자 불평행동의 한 예로서 공공도서관 이용자의 불평행동에 대한 포괄적인 연구로 시도된 것이다. 이 연구에서는 불평에 대한 태도와 불평비용, 불평의 성공가능성, 서비스의 중요성, 외적귀인, 충성도 등의 불평행동의 선행요인이 이용중단, 항의, 부정적 구전, 제3자를 통한 불평 등의 각 불평행동 유형에 미치는 영향을 실증적으로 분석하였다. 특히 비영리조직의 특성과 관련하여 선행요인으로 "무료이용지각"이라는 새로운 변수를 검토하였다. 서비스에 불만족한 대구지역 공공도서관의 성인이용자 515명을 대상으로 한 설문조사를 바탕으로 결과를 분석하였다.

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Screening and Characterization of a Novel Cellulase Gene from the Gut Microflora of Hermetia illucens Using Metagenomic Library

  • Lee, Chang-Muk;Lee, Young-Seok;Seo, So-Hyeon;Yoon, Sang-Hong;Kim, Soo-Jin;Hahn, Bum-Soo;Sim, Joon-Soo;Koo, Bon-Sung
    • Journal of Microbiology and Biotechnology
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    • 제24권9호
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    • pp.1196-1206
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    • 2014
  • A metagenomic fosmid library was constructed using genomic DNA isolated from the gut microflora of Hermetia illucens, a black soldier fly. A cellulase-positive clone, with the CS10 gene, was identified by extensive Congo-red overlay screenings for cellulase activity from the fosmid library of 92,000 clones. The CS10 gene was composed of a 996 bp DNA sequence encoding the mature protein of 331 amino acids. The deduced amino acids of CS10 showed 72% sequence identity with the glycosyl hydrolase family 5 gene of Dysgonomonas mossii, displaying no significant sequence homology to already known cellulases. The purified CS10 protein presented a single band of cellulase activity with a molecular mass of approximately 40 kDa on the SDS-PAGE gel and zymogram. The purified CS10 protein exhibited optimal activity at $50^{\circ}C$ and pH 7.0, and the thermostability and pH stability of CS10 were preserved at the ranges of $20{\sim}50^{\circ}C$ and pH 4.0~10.0. CS10 exhibited little loss of cellulase activity against various chemical reagents such as 10% polar organic solvents, 1% non-ionic detergents, and 0.5 M denaturing agents. Moreover, the substrate specificity and the product patterns by thin-layer chromatography suggested that CS10 is an endo-${\beta}$-1,4-glucanase. From these biochemical properties of CS10, it is expected that the enzyme has the potential for application in industrial processes.

Herpes simplex 바이러스의 유전학적 특성에 관한 연구 (Study or The Genetic Characteration of Herpes Simplex Virus)

  • 강봉주;최환수;최선미;신현규;조동욱;박갑주
    • 한국한의학연구원논문집
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    • 제1권1호
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    • pp.477-493
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    • 1995
  • In order to facilitate the molecular characterization of the Herpes simplex Virus types 1 and types 2 genome DNAs, a gene library of cloned restriction frtgments have been produced. The Vero cells were infected with HSV-1 and HSV-2. 48 hours after infection, the infected cells Ivere Iysed, and multinucleated giant cells were observed approximately at seventy-two hours postinfection. The multiplication of HSV-1 and HSV-2 was observed in Vero cells using electromicroscopy. The nucleocapsids in nuclei were obseryed, and the assembled virions were budded out through the vacuole, and the virions were released from the cells. HSV-1 and HSV-2 was analyzed by digestion of their genome DANs with restriction ensymes. HSV-1 and HSV-2 genome DNAs were digested with BarnHI, Bgfl respectively. The BarnHI rlestriction fragments of HSV-1 and HSV-2 genome DNAs were twenty-seven fragments and thair molecular sizes were ranging $0.70{\sim}15.08$, $4.4{\sim}31.0$ tilobases. The BglII restriction fragments of HSV-1 and HSV-2 genome DNAs were sixteen, eighteen fragments and thair molecular sizes were ranging $4.8{\sim}30.0$, $1.2{\sim}25.0$ kilobases. And then BglII restriction frgments were cloned in Escherichia coli(E.coil) using the plasmid vector pBacPAK9.

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도서관의 정보의뢰봉사에 관한 고찰 (A study on the information and referral services in libraries)

  • 손연옥
    • 한국도서관정보학회지
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    • 제20권
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    • pp.187-216
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    • 1993
  • The overall goal of this study is to identify what I'||'&'||'R is, and what services should be offered as legitimate I'||'&'||'R actives. The gist of the study is as follows: 1. The shift of the clients targeted to receive the services from disadvantageous to every person. 2. Ambiguity in I'||'&'||'R definition. Because it is hard to distinguish I'||'&'||'R service from the traditional reference service, and shifting of clients, the establishment of the definition was very difficult. Instead of a definite answer, the criteria for "I'||'&'||'R Providers" was drawn. 3. Most provided services were simple and complex information giving based on resource file. Constructing resource file is a major component of I'||'&'||'R service. 4. From 1980s, many I'||'&'||'R providing libraries adapted computer a n.0, pplications. 5. Social work and library-internship was advised to conduct a cooperative project by NCLIS, I'||'&'||'R Task Force. 6. In the high technological era, there continue to be many people who need the su n.0, pportive relationship. I'||'&'||'R is to optimize both the service and clients. Librarian must learn from the principle of high tech/high touch.

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온라인 목록 검색 행태에 관한 연구-LINNET 시스템의 Transaction log 분석을 중심으로-

  • 윤구호;심병규
    • 한국도서관정보학회지
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    • 제21권
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    • pp.253-289
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    • 1994
  • The purpose of this study is about the search pattern of LINNET (Library Information Network System) OPAC users by transaction log, maintained by POSTECH(Pohang University of Science and Technology) Central Library, to provide feedback information of OPAC system design. The results of this study are as follows. First, for the period of this analysis, there were totally 11, 218 log-ins, 40, 627 transaction logs and 3.62 retrievals per a log-in. Title keyword was the most frequently used, but accession number, bibliographic control number or call number was very infrequently used. Second, 47.02% of OPAC, searches resulted in zero retrievals. Bibliographic control number was the least successful search. User displayed 2.01% full information and 64.27% local information per full information. Third, special or advanced retrieval features are very infrequently used. Only 22.67% of the searches used right truncation and 0.71% used the qualifier. Only 1 boolean operator was used in every 22 retrievals. The most frequently used operator is 'and (&)' with title keywords. But 'bibliographical control number (N) and accessionnumber (R) are not used at all with any operators. The causes of search failure are as follows. 1. The item was not used in the database. (15, 764 times : 79.42%). 2. The wrong search key was used. (3, 761 times : 18.95%) 3. The senseless string (garbage) was entered. (324 times : 1.63%) On the basis of these results, some recommendations are suggested to improve the search success rate as follows. First, a n.0, ppropriate user education and online help function let users retrieve LINNET OPAC more efficiently. Second, several corrections of retrieval software will decrease the search failure rate. Third, system offers right truncation by default to every search term. This methods will increase success rate but should considered carefully. By a n.0, pplying this method, the number of hit can be overnumbered, and system overhead can be occurred. Fourth, system offers special boolean operator by default to every keyword retrieval when user enters more than two words at a time. Fifth, system assists searchers to overcome the wrong typing of selecting key by automatic korean/english mode change.

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공공도서관 사서의 감정노동수준이 직무만족 및 도서관정보서비스 제공수준에 미치는 영향 (The Effects of Emotional Labor Level on the Level of Job Satisfaction and Library Information Service Provision in Public Library Librarians)

  • 김수진;강순애
    • 한국비블리아학회지
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    • 제29권1호
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    • pp.153-184
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    • 2018
  • 본 연구는 공공도서관 사서의 감정노동수준이 직무만족 및 도서관정보서비스 제공수준에 미치는 영향을 살펴본 것이다. 감정노동수준을 독립변수로, 직무만족과 도서관정보서비스 제공수준을 종속변수로, 조직문화를 조절변수로 설정하였다. 서울시 공공도서관 사서 220명을 무작위로 선정하여 인터넷으로 설문지를 배포하여 수거하였고, SPSS 18.0 프로그램을 활용하여 신뢰도 분석, 상관계수분석, 다중회귀분석, 조절회귀분석을 실시하여 분석하였다. 연구결과 첫째, 공공도서관 사서는 이용자에게 자신의 감정을 표현하는 것을 좋아하지 않고, 실제 감정과는 다르게 더 긍정적으로 표현하고자 함을 알 수 있었다. 둘째, 사서들은 감정노동을 경험하지만, 업무를 수행하는 데 있어 오히려 성취감을 느끼고, 하고 있는 일에 대해 자랑스럽고 기쁘게 생각하게 된다는 것을 알 수 있다. 이는 자신이 하는 일이 전문적인 일이라는 인식이 강하므로, 감정노동을 경험해도 그것을 극복해야 하며, 그렇게 함으로써 직무에 대한 긍지를 가질 수 있다. 셋째, 사서들은 감정노동을 경험하게 되더라도, 합리적인 직무평가가 목표를 가지고 실시되고, 직원들 간의 관계가 좋다면 업무에 있어 성취감을 높일 수 있다. 또한 직원의 평가가 실적위주이더라도, 사서들은 이용자가 그들의 서비스에 만족하고, 그 서비스 수준이 적절하다면, 봉사 정신을 높일 수 있다.

H-Y 항원 유전자의 클로닝에 관한 연구 III. 생쥐정소 cDNA Library 구성과 유전자의 검색 (Molecular Cloning of H-Y Antigen Gene III. Construction of Mouse Testis cDNA Library and Screening of H-Y Ag Gene)

  • 이정렬;김창규;김종배
    • 한국가축번식학회지
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    • 제17권1호
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    • pp.43-48
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    • 1993
  • These experiments were carried out to construct mouse testis cDNA library and to to seen H-Y Ag gene. Mouse testis was obtained from BALB/c inbreed mouse that was after-born 1 week. Isolation of mouse testis total RNA was carried out by guanidum/cesium choloride, poly(A+) mRNAs were purified by oligo d(T)-cellulose chromatography method. To investigate protein synthesis activity, in-vitro translation carried out by total RNA and poly(A+) mRNA. The products of in-vitro translation were identified in 12.5% PAGE. Single strand DNA and double strand DNA were synthesized from poly(A+) mRNA and purified using phenol/chloroform/isoamylalcohol. Synthesized cDNA was combined with cohesive Eco RI polylinker, its recombination efficiencies were identified by X-gal and IPTG. In the cDNA library, 1$\times$107 phagemids were screened with 32P labelled probe. Hybridization were carried on $65^{\circ}C$ for 16~20hours. And 1$\times$106 phagemids were screened with rabbit-anti-H-Y. In former, select 5 positive clones, and later, 1 positive clone. Its southern blot analysis showed various size of insert cDNA from 0.7kb to 3kb.

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