• Title/Summary/Keyword: Collection overlap

Search Result 28, Processing Time 0.025 seconds

Research on Configuration Optimization of Overlap Section in Overhead Catenary System for High-speed Railway (전차선로 속도향상에 따른 오버랩 구간(Overlap section) 경간 구성 기법)

  • Choi, Tae-su;Choi, Kyu-Hyoung
    • The Transactions of The Korean Institute of Electrical Engineers
    • /
    • v.66 no.6
    • /
    • pp.975-980
    • /
    • 2017
  • Overhead catenary system of electric railway has overlap sections which devide and tighten trolley wire supplying electric power to train, where current collection performances may become worse according to railway speed-up. Current collection tests conducted at 400 km/h test-bed section of Honam high-speed railway show that balanced line arrangement at overlap section is needed to secure current collection without arc generation between trolley wire and train current collection device. This paper proposes a design procedure of the overlap section to allow for tension increase and uplift of the trolley wires according to railway speed-up. By applying the proposed procedure to the overhead catenary system of Honam high-speed railway, it is suggested that the minimum span length should be 33.2 m for railway speed-up to 350 km/h and 43.7 m for speed-up to 400 km/h.

A Study on the Collection Use and Overlap of Regional Collaborative Library System in Public Libraries (공공도서관의 지역통합시스템 운영이 장서의 이용 및 중복에 미치는 영향에 관한 연구)

  • Park, Hyun-Kyung;Noh, Dong-Jo
    • Journal of the Korean BIBLIA Society for library and Information Science
    • /
    • v.29 no.4
    • /
    • pp.251-267
    • /
    • 2018
  • In this research, a sample was selected from a public library in Paju city, which operates a regional collaborative library system. They collected data on materials, usage, and acquisition. An analysis of book collection data and usage data was also conducted in order to evaluate the correlation between the usage and acquisition by comparing overlap of purchased materials. As a result, circulations and the interlibrary loan (ILL) borrowing requests were differentiated by topics according to targeted materials, and that these characteristics affect the overlap of purchased materials. The study suggested that public libraries in the region collaborative library system need to consider the paradigm of collection and access when purchasing books.

Collection of Foreign Academic Journals in Domestic Libraries : Status and Issues (외국(外國) 학술잡지(學術雜誌)의 국내 소장현황(所藏現況)과 문제점)

  • Kim, Suk-Young
    • Journal of Information Management
    • /
    • v.24 no.3
    • /
    • pp.57-72
    • /
    • 1993
  • The purpose of this study is to investigate the present status of foreign academic journal collection in Korea and to explore the problem. In order to survey the current situation, the data from "Union Catalogue of Foreign Journals:Science & Technology, 1992" database constructed by Korea Institute of Industry and Technology Information has been analyzed. Major problems are poor collections, collection overlap, and lack of resource sharing.

  • PDF

An Analytical Study on Union Catalog of Foreign Journals (외국학술잡지종합목록데이터베이스 현황분석)

  • 산업기술정보원 정보자료실
    • Journal of Information Management
    • /
    • v.26 no.3
    • /
    • pp.54-62
    • /
    • 1995
  • The purpose of this study is to analyze the data of $\ulcorner$Union Catalog of Foreign Journals$\lrcorner$ Database, which has been revised and updated in 1995. The database includes 13,449 titles of foreign journals in scienc and technology which is a collection of 253 libraries in Korea. The items of analysis are nation, language, frequency, subject of each title, and also collection overlap, etc.

  • PDF

Fashion Design Expression of Wassily Kandinsky's Paintings -Focus on Music Visualization -

  • Kim, Sung-Soo;Kim, Young-Sam
    • Journal of the Korean Society of Costume
    • /
    • v.66 no.5
    • /
    • pp.16-32
    • /
    • 2016
  • This study examines music visualization characteristics appearing in Giorgio Armani's S/S 2000 Collection and Genny's F/W 2000 Collection, which elicited and reinterpreted the characteristics through an analysis of Kandinsky's paintings. Study results are as follows. First, music visualization characteristics were extracted through an analysis of Kandinsky's works to examine music visualization that appears in contemporary fashion. Further analysis of Kandinsky's works were done in regards to music visualization (Impression, Improvisation, and Composition), and music visualization characteristics were categorized into 'spatial element', 'mobility', and 'overlap'. Second, the analysis of contemporary fashion with a spatial component showed that space was often clothed through color contrasts that highlighted concise and playful effects. Emphasis on line and three-dimensional effects were shown by overlapping lines and costume pleats with exposure expressed by semiotic forms and fabric character4istics. Third, the analysis of clothes that express mobility shows that they commonly express mobility through free color arrangements and a shading of colors with playfulness. The effects of emphasis, uniformity, and exposure were shown through the gloss and transformation of fabric that emphasized fabric characteristics; in addition, the effect of simplicity, three-dimensionality, and uniformity were expressed by adopting the forms of geometric shapes. Fourth, the analysis of clothes that manifest the overlap showed a predominant overlapping of colors and fabric. The esthetic effects of playfulness and exposure were emphasized through colors, shapes, and lines.

DNA 염기 서열의 단편 조립 프로그램 개발

  • Lee, Byung-Uk;Park, Kie-Jung;Park, Wan;Park, Yong-Ha
    • Microbiology and Biotechnology Letters
    • /
    • v.25 no.6
    • /
    • pp.560-565
    • /
    • 1997
  • DNA fragment assembly is a major concem in shot-gun DNA sequencing project. It is to reconstruct a consensus DNA sequence from a collection of random oritented fragments. We developed a computer program that is useful for DNA fragment assembly. Inputs to the program are DNA fragment sequences including IUB-IUPAC bases. The program produces the most probable reconstruction ot the original DNA sequence as a text format or a PostScript format. The program consists of four phases: the first phase quickly eliminates fragment pairs that can not possibly overlap. In the second phase, the quality of overlap between each pair is calculated to a score. In the third phase, overlap pairs are sorted by their scores and consistency of the overlaps is checked. The last phase determines consensus sequences and displays them. The performance of fragment assembly program was tested on a set of DNA fragment sequences which were generated from long DNA sequences of GenBank by a fragmentation program.

  • PDF

Influence of Interiorlandscape in Commercial Spaces on the Management Benefits (상업공간 실내조경이 경영적 효과에 미치는 영향)

  • 김수연;이종석
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.28 no.2
    • /
    • pp.1-9
    • /
    • 2000
  • The purpose of this study is to examine influence of interior landscape in commercial spaces on the management benefit. In the course of this study, objects of survey were selected from interior landscaping specialist, manager and consumer who had experiences to visit to the hotel, bank, department store and restaurant. The main method of data collection was interview, questions and gathering materials. The cronbach's alphas program was used to measure the reliability of likert scales. The analysis program was applied a statistical methods. The results of this study can be summarized as follows: The factors considered by consumer who visits to the commercial space are design, interior landscape, traffic, parking capacity, cleanness, price, kindness of employee and event. Factors concerned with the product include branch size, traffic, parking capacity, kindness of employee. Factors concerned with facilities include branch size, traffic, parking capacity, kindness of employee. Major factors of those effects to management benefit are accessibility, time of stay, sales, efficiency of space, attractiveness and difference. In conclusion, overlap style gets the highest degree of satisfaction among total factors. Results of the survey show that factors which improve sales are overlap style and planter type. Among four commercial spaces, hotel is most effected by interior landscape. To enhance the sales of hotel, further study of interior landscape about hotel necessary. For bank and restaurant, further study of economic planter type and style is necessary. For department store, optimal use of spaces and case of maintenance are necessary.

  • PDF

Evaluation of Mobility and Safety of Operating an Overlap Phase on a Shared-Left-Turn Lane Using a Microscopic Traffic Simulation Model (미시교통시뮬레이션모형을 이용한 공용 좌회전 차로의 중첩현시운영의 이동성과 안전성 평가 연구)

  • Yun, Il-Soo;Han, Eum;Woo, Seok-Cheol;Yoon, Jung-Eun;Park, Sung-Ho
    • The Journal of The Korea Institute of Intelligent Transport Systems
    • /
    • v.11 no.5
    • /
    • pp.15-26
    • /
    • 2012
  • Government agencies including the national police agency have executed diverse efforts including continuous improvements of traffic facilities and operation methods, education, enforcements in order to improve traffic operation systems; nevertheless there have been continuous criticisms on irrationality in traffic signal and road facility operation. One of the reasons may be the lack of systematic preliminary evaluations on various alternatives. However, there was no appropriate tool to evaluate the mobility and safety of thus alternatives in a systematic way. Therefore, this study proposes the systematic use of microscopic traffic simulation models as a comprehensive evaluation tool. In addition, this study verified the potential of using a microscopic traffic simulation model using the case of operating an overlap phase on a shared-left-turn lane through a systematic way where the evaluation was conducted through data collection, building networks, calibrating microscopic simulation models, producing performance measures, evaluating mobility and safety, and so on. As a result, the operation of overlap phase on a shared-left-turn lane showed no big difference from other operation scenarios such as leading left-turn on exclusive left turn lane in terms of mobility. However the operation of overlap phase on a shared-left-turn lane decreased safety by increasing potential conflicts.

Chromosome 22 LD Map Comparison between Korean and Other Populations

  • Lee, Jong-Eun;Jang, Hye-Yoon;Kim, Sook;Yoo, Yeon-Kyeong;Hwang, Jung-Joo;Jun, Hyo-Jung;Lee, Kyu-Sang;Son, Ok-Kyung;Yang, Jun-Mo;Ahn, Kwang-Sung;Kim, Eug-Ene;Lee, Hye-Won;Song, Kyu-Young;Kim, Hie-Lim;Lee, Seong-Gene;Yoon, Yong-Sook;Kimm, Ku-Chan;Han, Bok-Ghee;Oh, Berm-Seok;Kim, Chang-Bae;Jin, Hoon;Choi, Kyoung-O.;Kang, Hyo-Jin;Kim, Young-J.
    • Genomics & Informatics
    • /
    • v.6 no.1
    • /
    • pp.18-28
    • /
    • 2008
  • Single nucleotide polymorphisms (SNPs) are the most abundant forms of human genetic variations and resources for mapping complex genetic traits and disease association studies. We have constructed a linkage disequilibrium (LD) map of chromosome 22 in Korean samples and compared it with those of other populations, including Yorubans in Ibadan, Nigeria (YRI), Centre d'Etude du Polymorphisme Humain (CEPH) reference families (CEU), Japanese in Tokyo (JPT) and Han Chinese in Beijing (CHB) in the HapMap database. We genotyped 4681 of 111,448 publicly available SNPs in 90 unrelated Koreans. Among genotyped SNPs, 4167 were polymorphic. Three hundred and five LD blocks were constructed to make up 18.6% (6.4 of 34.5 Mb) of chromosome 22 with 757 tagSNPs and 815 haplotypes (frequency $\geq$ 5.0%). Of 3430 common SNPs genotyped in all five populations, 514 were monomorphic in Koreans. The CHB + JPT samples have more than a 72% overlap with the monomorphic SNPs in Koreans, while the CEU + YRI samples have less than a 38% overlap. The patterns of hot spots and LD blocks were dispersed throughout chromosome 22, with some common blocks among populations, highly concordant between the three Asian samples. Analysis of the distribution of chimpanzee-derived allele frequency (DAF), a measure of genetic differentiation, Fst levels, and allele frequency difference (AFD) among Koreans and the HapMap samples showed a strong correlation between the Asians, while the CEU and YRI samples showed a very weak correlation with Korean samples. Relative distance as a quantitative measurement based upon DAF, Fst, and AFD indicated that all three Asian samples are very proximate, while CEU and YRI are significantly remote from the Asian samples. Comparative genome-wide LD studies provide useful information on the association studies of complex diseases.

A Foreign Serials Overlap Study for Collaborative Collection Development (협력형 자원개발을 위한 해외학술지 중복 연구)

  • Hwang, Hye-Kyong;Kim, Soon-Young;Lee, Hye-Jin
    • Journal of Information Management
    • /
    • v.39 no.2
    • /
    • pp.131-161
    • /
    • 2008
  • Recently electronic journal articles prevail throughout researchers because of the development of internet and electronic publishing technology. It is caused by limited collection development budget, lack of physical storage space for printed journals in libraries, and the user convenience of web services. But from the view of ownership, electronic journals can be unfavorable to information users or libraries who cannot have the permanent right to access all the subscribed journals. Actually the libraries only have right to access journals for subscription periods in using electronic journals. So the users and libraries are willing to purchase printed journals in spite of high cost. As an basis for collaborative collection development and sharing preservation of Korean libraries for the foreign journals, the data analysis is carried out for the journals collection in terms of regional distribution, overlapping status, and journal subject. And the considerables are discussed for collaborative strategic collection development, which means the reduction of overlapped subscription and maximization of utilization in a national standpoint.