• 한국문헌정보학회지
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• 제47권3호
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• pp.5-23
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• 2013

이 연구의 목적은 WorldCat에 수록된 한국 및 일본 관련 청소년 책의 언어, 장르, 주제적 특성을 살펴보고, 소장도서관 및 보유 현황을 분석함으로써 한국과 일본 관련 지식 확산의 가능성을 전망하는 것이다. 이를 위해 1993년부터 2012년까지 발행된 청소년용 책의 서지레코드 및 이들 중 한국 및 일본 관련 책의 서지 레코드 수가 가장 비슷했던 1997년 발행 책들의 소장도서관 수, 언어, 장르 및 주제표목 분포를 상세히 계량분석 하였다. 한국 관련 책들은 WorldCat 수록 서지레코드 수가 절대적으로 적고, 1997년 책은 미국 내 소장 및 보유도서관 수가 적으며, 대부분 한글 전용 텍스트, 영유아 및 초등 저학년 수준 책의 과잉, 옛날이야기나 일화 중심 전기서 등 장르와 주제 편향성 등을 보여 '읽을거리'로서 흥미 유발이나 지식 확산의 전망이 제한적일 것으로 나타났다.

• 정보관리학회지
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• 제25권2호
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• pp.127-141
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• 2008

본 연구에서는 질문지법을 이용하여 과학기술분야 연구자들의 정보요구와 탐색 행태를 분석하였다. 분석결과, 연구자들은 주로 연구개발의 업무, 보고서 작성 등치 업무에서 정보를 필요로 하고 있음을 알 수 있었다. 연구의 아이디어를 알아내는 방법으로는 주로 문헌을 활용하고, 연구자간 커뮤니케이션도 빈번하게 활용하고 있었다. 또한 그들이 가장 많이 활용하는 정보원으로는 디지털 도서관, 웹 검색 엔진, 학술정보포털 등으로 응답하여 온라인을 통한 정보 요구가 높은 것으로 알 수 있었다. 이러한 이용자 요구 조사 결과를 토대로 이용자 중심의 과학기술정보서비스를 개발할 수 있을 것으로 기대한다.

• 한국비블리아학회지
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• 제25권4호
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• pp.351-359
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• 2014

본 연구는 1950년에서 1969년 동안 American Documentation에 실린 정보학 논문의 저자 성별과 관련된 변수를 검토한다. American Documentation은 American Documentation Institute에서 출판되었고, 당시 중요한 정보학 저널이었으며, 1968년 모기관의 명칭이 American Society for Information Science로 변경되면서 1970년 표제가 Journal of the American Society for Information Science (JASIS)로 변경되었다. AD 이전에는 ALA에서 출판한 Journal of Documentary Reproduction (JDR)이 정보학 저널로 있었다. 연구에 따르면 JDR (1938-1942)의 전체 논문 중 여성은 약 8%를 차지하였고, JASIS (1970-1996)의 초기 27년에는 22%를 차지하였다. 본 연구는 1950-1969동안 American Documentation에 여성의 논문을 분석하고 있다. AD라는 이름으로 발행된 저널 전체에서 여성 저자는 17%를 구성하였는데 이러한 비율은 초기와 이후 시기의 중간 정도에 해당하고 있다.

• 한국문헌정보학회지
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• 제44권4호
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• pp.5-18
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• 2010

Library and information research is often directed towards either the management of resources (e.g., the economics of resource management), their storage and retrieval (e.g., much information retrieval research), and the users of these resources (the whole area of information behaviour. However, the question that is less often asked is, "What research do librarians want to have carried out to help them in their work?" Clearly, some of the topics just mentioned will fall into the priority areas, but what do librarians actually perceive will be of use to them. There is a notion that a research-practice gap exists in the field and perhaps the reason for that is that researchers do not ask the practioners what research will be of value to them. To find an answer to this question on a global basis would, of course, be impossible - at least impossible without the level of funding that would be difficult to obtain from any source. However, it is possible to carry out research on a national level that could prove useful both to practitioners and to the library and information research community. This was the aim of a project, supported by the Svensk Biblioteksf$\"{o}$rening (Swedish Library Association), which was carried out in 2008/2009. Ideas on potential research projects were collected from librarians themselves, from discussion group archives and from the professional journals in a number of countries. These ideas were then grouped thematically and formed the basis of two rounds of a Delphi process to solicit the opinions of a panel of librarians in different sectors, recommended by their peers as 'expert' in their field. The Delphi process was concluded with a workshop involving a subset of the panel. This paper will report on the results of the investigation, which attracted a great deal of interest within the profession in Sweden, and will also reflect on issues that were ranked lowly in the investigation. For example, not a great deal of priority was given to topics relating to the development and use of technology: why was this? And would the same result be found in other countries? One major area of research interest was into the future of libraries and a topic of relevance here, especially for academic and research libraries, is the changing information behaviour of researchers: what, now, do researchers want of libraries? Clearly, technology is playing a role here, but digitized resources and the World Wide Web may not be the answer to every researcher's need. Research into libraries and research for libraries ought to figure largely in the profession's view of its aims, objectives and visions of the future: but for it to do so requires a recognition that the work will not be done unless researchers and practitioners come together to determine how to approach the future.

• 한국도서관정보학회지
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• 제54권2호
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• pp.131-154
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• 2023

본 연구는 경기도 A시 도서관 사례를 중심으로 취약계층 어린이를 대상으로 시행한 찾아가는 독서프로그램의 효과를 분석하였다. A시 도서관은 방문교사를 활용하여 어린이의 수준과 흥미에 맞는 책을 비대면으로 책만 배달하거나, 대면으로 책을 읽어주고 책 배달을 함께 하였다. 2022년 프로그램 참여자는 103가정 158명으로 이 중 책 배달은 67가정 103명, 책 읽어주기는 36가정 55명이다. 취약계층 어린이와 양육자를 대상으로 사업 시작과 종료 시기에 독서 효과 측정지표를 설문으로 조사하여 비교 분석하였고, 방문교사와 인터뷰를 하였다. 분석결과 책 배달과 책 읽어주기 중 어린이의 수준과 흥미를 파악하고 상호작용이 큰 책 읽어주기의 효과가 높았다. 연령상으로 독서경험을 쉽게 습득할 수 있는 유아가 초등학생보다 독서 효과가 더 좋았다. 계속 참여집단보다 신규 참여집단을 대상으로 한 프로그램이 약간 더 효과적이었다. 이외에 프로그램 시행 후 독서 흥미, 독서 태도, 독서환경, 독서 상호작용, 자아존중감, 사회성, 언어능력, 독서능력, 자기주도적 학습능력, 도서관 이용률 등에서 향상되었다.

• 한국정밀공학회지
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• 제22권9호
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• pp.202-211
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• 2005

This paper introduces and illustrates the results of a new method fer offsetting triangular mesh by moving all vertices along the multiple normal vectors of a vertex. The multiple normal vectors of a vertex are set the same as the normal vectors of the faces surrounding the vertex, while the two vectors with the smallest difference are joined repeatedly until the difference is smaller than allowance. Offsetting with the multiple normal vectors of a vertex does not create a gap or overlap at the smooth edges, thereby making the mesh size uniform and the computation time short. In addition, this offsetting method is accurate at the sharp edges because the vertices are moved to the normal directions of faces and joined by the blend surface. The method is also useful for rapid prototyping and tool path generation if the triangular mesh is tessellated part of the solid models with curved surfaces and sharp edges. The suggested method and previous methods are implemented on a PC using C++ and illustrated using an OpenGL library.

• Journal of Mechanical Science and Technology
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• 제18권4호
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• pp.718-730
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• 2004

The solution for the natural convection in internally finned horizontal annuli is obtained by using a numerical simulation of time-dependent and two-dimensional governing equations. The fins existing in annuli influence the flow pattern, temperature distribution and heat transfer rate. The variations of the On configuration suppress or accelerate the free convective effects compared to those of the smooth tubes. The effects of fin configuration, number of fins and ratio of annulus gap width to the inner cylinder radius on the fluid flow and heat transfer in annuli are demonstrated by the distribution of the velocity vector, isotherms and streamlines. The governing equations are solved efficiently by using a parallel implementation. The technique is adopted for reduction of the computation cost. The parallelization is performed with the domain decomposition technique and message passing between sub-domains on the basis of the MPI library. The results from parallel computation reveal in consistency with those of the sequential program. Moreover, the speed-up ratio shows linearity with the number of processor.

• 한국미생물·생명공학회지
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• 제23권2호
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• pp.138-144
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• 1995

The cDNA, encoding human lysozyme (HLY) which was isolated from a human placenta cDNA library, has been well characterized (Yoshimura et al., 1988). Based on the communication, we have prepared an artificial HLY gene from chemically synthesized 38-oligomer with high codon usage in Saccharomyces cerevisiae. For directing the synthesis and secretion of HLY in S. cerevisiae, an expression vector, pHKl was constructed by inserting the HLY gene, containing a synthetic HLY secretion signal sequence, between the yeast GAP promoter and PH05 terminator. From a lysoplate assay, we have confirmed an yeast transformant harboring a pHK1 which makes a clearing zone on the overlayed Micrococcus luteus. This result means a chemically synthesized HLY gene which was normally expressed and secreted in yeast.

• 대한수학회지
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• 제41권3호
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• pp.479-487
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• 2004

Let G be a finite group and N be a normal subgroup of G. We denote by ncc(N) the number of conjugacy classes of N in G and N is called n-decomposable, if ncc(N) = n. Set $K_{G}\;=\;\{ncc(N)$\mid$N{\lhd}G\}$. Let X be a non-empty subset of positive integers. A group G is called X-decomposable, if KG = X. In this paper we characterise the {1, 3, 4}-decomposable finite non-perfect groups. We prove that such a group is isomorphic to Small Group (36, 9), the $9^{th}$ group of order 36 in the small group library of GAP, a metabelian group of order $2^n{2{\frac{n-1}{2}}\;-\;1)$, in which n is odd positive integer and $2{\frac{n-1}{2}}\;-\;1$ is a Mersenne prime or a metabelian group of order $2^n(2{\frac{n}{3}}\;-\;1)$, where 3$\mid$n and $2\frac{n}{3}\;-\;1$ is a Mersenne prime. Moreover, we calculate the set $K_{G}$, for some finite group G.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2008년도 하계학술대회 논문집 Vol.9
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• pp.184-184
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• 2008

In this paper, a power divider with a multi-band and broadband are designed and fabricated using an InGaP/GaAs process. The design of this divider is based on multi-band because it is important in the next generation IMT-Advances system. In this design, power divider is fabricated with the frequency of 824 MHz to 894 MHz, 1.8 GHz to 2.2 GHz and 2.3 GHz to 2.4 GH for cellular, personal communication system (PCS) and Wireless Broadband Internet (WiBro). The topology of the designed power divider is based on the multi-section and fabricated using integrated passive device (IPD) library of nanoENS Inc. It is measured using network analyzer.