• Title/Summary/Keyword: neighborhood

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A New Test Algorithm for High-Density Memories (고집적 메모리를 위한 새로운 테스트 알고리즘)

  • Kang, Dong-Chual;Cho, Sang-Bock
    • Proceedings of the IEEK Conference
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    • 2000.11b
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    • pp.59-62
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    • 2000
  • As the density of memories increases, unwanted interference between cells and coupling noise between bit-lines are increased and testing high density memories for a high degree of fault coverage can require either a relatively large number of test vectors or a significant amount of additional test circuitry. From now on, conventional test algorithms have focused on faults between neighborhood cells, not neighborhood bit-lines. In this paper, a new algorithm for NPSFs, and neighborhood bit-line sensitive faults (NBLSFs) based on the NPSFs are proposed. Instead of the conventional five-cell and nine-cell physical neighborhood layouts to test memory cells, a three-cell layout which is minimum size for NBLSFs detection is used. To consider faults by maximum coupling noise by neighborhood bit-lines, we added refresh operation after write operation in the test procedure(i.e., write \longrightarrow refresh \longrightarrow read). Also, we present properties of the algorithm, such as its capability to detect stuck-at faults, transition faults, conventional pattern sensitive faults, and neighborhood bit-line sensitive faults.

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Neighborhood Correlation Image Analysis for Change Detection Using Different Spatial Resolution Imagery

  • Im, Jung-Ho
    • Korean Journal of Remote Sensing
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    • v.22 no.5
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    • pp.337-350
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    • 2006
  • The characteristics of neighborhood correlation images for change detection were explored at different spatial resolution scales. Bi-temporal QuickBird datasets of Las Vegas, NV were used for the high spatial resolution image analysis, while bi-temporal Landsat $TM/ETM^{+}$ datasets of Suwon, South Korea were used for the mid spatial resolution analysis. The neighborhood correlation images consisting of three variables (correlation, slope, and intercept) were evaluated and compared between the two scales for change detection. The neighborhood correlation images created using the Landsat datasets resulted in somewhat different patterns from those using the QuickBird high spatial resolution imagery due to several reasons such as the impact of mixed pixels. Then, automated binary change detection was also performed using the single and multiple neighborhood correlation image variables for both spatial resolution image scales.

A New Test Algorithm for Bit-Line Sensitive Faults in High-Density Memories (고집적 메모리에서 BLSFs(Bit-Line Sensitive Faults)를 위한 새로운 테스트 알고리즘)

  • Kang, Dong-Chual;Cho, Sang-Bock
    • Journal of IKEEE
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    • v.5 no.1 s.8
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    • pp.43-51
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    • 2001
  • As the density of memories increases, unwanted interference between cells and coupling noise between bit-lines are increased. And testing high-density memories for a high degree of fault coverage can require either a relatively large number of test vectors or a significant amount of additional test circuitry. So far, conventional test algorithms have focused on faults between neighborhood cells, not neighborhood bit-lines. In this paper, a new test algorithm for neighborhood bit-line sensitive faults (NBLSFs) based on the NPSFs(Neighborhood Pattern Sensitive Faults) is proposed. And the proposed algorithm does not require any additional circuit. Instead of the conventional five-cell or nine-cell physical neighborhood layouts to test memory cells, a three-cell layout which is minimum size for NBLSFs detection is used. Furthermore, to consider faults by maximum coupling noise by neighborhood bit-lines, we added refresh operation after write operation in the test procedure(i.e.,$write{\rightarrow}\;refresh{\rightarrow}\;read$). Also, we show that the proposed algorithm can detect stuck-at faults, transition faults, coupling faults, conventional pattern sensitive faults, and neighborhood bit-line sensitive faults.

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Neighborhood Networks and Volunteering - Linking the neighborhood- and individual-level Dimensions - (지역성원 연결망과 자원봉사 참여 - 지역과 개인수준의 연계를 통한 경험 연구 -)

  • Jun, Shin-Hyun
    • 한국사회복지학회:학술대회논문집
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    • 1999.04a
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    • pp.294-313
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    • 1999
  • Volunteering has been defined as a form of altruistic helping behavior directed at improving other's welfare. Volunteering is, however, also identified as a type of collective action for community welfare. In this regard, this study tests whether neighborhood member's network and collective identity are more important determinants to explain participation in volunteer work than altruistic or normative motivation. This study estimates a model in which volunteering is determined by empathy, normative beliefs, neighborhood networks(friendship, contacts, and integration), and identity as a neighborhood member. This study shows that empathy, normative beliefs, and collective identity as a neighborhood member have significant impacts on participation in volunteer work. In addition, this study reveals that neighborhood member's network has an indirect impact on volunteering through identity as a neighborhood member. These results suggest that neighborhood community member's ties and collective identity are important sources for community welfare and collective volunteer work.

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A Comparative Research of Assessment System Development for Low Carbon and Sustainable Neighborhood (친환경 근린주구 인증제도 개발을 위한 국내외 인증제도 비교연구 : 탄소를 중심으로)

  • Shin, Eun-Mi;Lee, Byeongho;Shin, Sung-Woo
    • KIEAE Journal
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    • v.13 no.3
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    • pp.21-26
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    • 2013
  • Recently, as the concern over environmental problem has been serious all over the world, carbon has become a key issue to mitigate the problem. In the field of Architecture, various sustainable assessment systems and LCCO2 assessment strategies have been developed, guiding low carbon building while planning. However, assessment system for low carbon neighborhood, which can be more efficient strategy, is still in the stage of research. In this paper, as a research for low carbon assessment system and planning guideline for neighborhood, scope meeting domestic condition has been set and sustainable assessment system for neighborhood, which is similar to low carbon concept, have been compared. LEED-Neighborhood Development, BREEAM-Communities, CASBEE-Urban Development, and GBCC-Apartment Houses were used for comparison. As a result, it is found that those systems has many differences in judging system, aggregating method, scope of evaluation, and relations with a building assessment system. The concern about carbon is not insufficient yet. Finally, assessment system for low carbon neighborhood, which is not only for establishing the plan, but also for giving guideline at the very first state of the plan, should be developed as fast as passible. With the result of this paper, establishment of assessment criteria and the way to measure quantitative $CO_2$ should be studied forward.

THE INITIAL MASS FUNCTION FOR THE SOLAR NEIGHBORHOOD STARS

  • Lee, See-Woo;Chun, Moo-Young
    • Journal of The Korean Astronomical Society
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    • v.19 no.2
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    • pp.51-62
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    • 1986
  • The Wielen dip over the ragne of 6 < $M_{\upsilon}$ < 9 in the luminosity function (LF) for the solar neighborhood stars could be explained by the combination of two different IMFs which yields the age of 13 billion years of the solar neighborhood. This smaller age than the Galactic age, 15 billion years indicates the slow collapse model of the Galaxy, solving the G-dwarf problem. Two different IMFs suggest two different mechanisms for star formation in the solar neighborhood.

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(L,⊙)-quasi-uniform Spaces and (L,⊙)-neighborhood Systems

  • Kim, Yong-Chan;Ko, Jung-Mi
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.9 no.2
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    • pp.65-70
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    • 2009
  • In this paper, we introduced the notion of (L,$\bigodot$)-quasi-uniform spaces and (L,$\bigodot$)-neighborhood systems on a strictly two-sided, commutative quantale lattice L. We investigate their properties and give the examples. In particular, we study the relations between (L,$\bigodot$)-quasi-uniform spaces and (L,$\bigodot$)-neighborhood systems.

Analysis of Isolation, Connection and Circulation with the Neighborhood park in Daegu

  • Ryu, Yeon-Su;Ra, Jung-Hwa;Cho, Hyun-Ju;Kim, Jin-Hyo;Kwon, Oh-Sung
    • Current Research on Agriculture and Life Sciences
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    • v.30 no.1
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    • pp.13-25
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    • 2012
  • Major and reckless development which have been continued during the last half century, have caused decrease and damage of urban green spaces in the point of qualitative and quantitative view. Particularly, it brought about reduction to urban neighborhood park which has taken the main role for landscape ecological value. Recently, neighborhood park planning based on the landscape ecological results has been increasing gradually. Most of all, diverse attempts such as the application of shape character analysis and the step of landscape ecological planning in urban park planning have been proposed. Today, we recognize the importance of comprehensive approach in urban green planning and neighborhood park planning, but landscape ecological approach which is analyzing character and making proposal with isolation, connection and circulation is still insufficient. Most of neighborhood parks in Korea are surrounded by buildings and isolated from adjacent green spaces. Besides, these parks have landscape ecological problems such as reduction of size, isolation from adjacent green spaces, decline of nature, and excessive pavement which we ignored during urban development process. We have sympathy for understanding landscape ecological characters and considering improvement proposals for neighborhood parks Therefore, the purpose of this study was to 1) select five neighborhood parks in Daegu, 2) analyze landscape ecological characters with isolation, connection and circulation, and 3) compare data. It is certain that these results should be the main data for the arrangement of improvement proposals which landscape ecological characters were appled to.

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The Age-friendly Degree of Neighborhood Environment in aspects of the Aged - A Comparative Study of Urban Area and Rural Area - (노인의 관점에서 본 동네환경의 노인친화도 - 도시지역과 농촌지역의 비교연구 -)

  • Oh, Chan-Ohk;Kim, Soo-Young;Gang, Dong-Jin
    • Korean Institute of Interior Design Journal
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    • v.24 no.2
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    • pp.217-226
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    • 2015
  • As the aging society is globally increasing, the guide for the aged-friendly city is suggested by WHO and many cities are preparing to meet with it. The base of this guide for an age-friendly city is an active aging. This study examined how degree the neighborhood environment is age-friendly from older persons' standpoints. The data were collected through the interview with old persons who aged more than 65 years, 117 persons in an urban area and 110 ones in a rural area. The age-friendly degree of neighborhood environment was examined from two aspects. One is how close 12 neighborhood facilities were from the elderly's houses. Another one is how degree the elderly were considered in 4 areas: pedestrian road, traffic, the amount of housing for the elderly, and space layouts of their houses. Findings were as follows. First, the elderly related neighborhood facilities in urban area were closer located to old persons' houses than in rural area, except the senior center. Second, in case of the age-friendly degree of their neighborhood environments, the space layout of house was the highest, and then traffic, pedestrian road, and the amount of housing for the elderly, in order. The consideration degree of wheelchair users was the lowest. Third, the age-friendly degree of pedestrian road, traffic, and room layout of house in rural area were higher than in urban area. However, the amount of housing for the elderly in urban area was higher than in rural area.

Neighborhood Networks, Identity as a Neighborhood Member, and Volunteering (지역연결망 및 지역성원으로서의 정체성이 자원봉사 참여에 미치는 영향)

  • Jun, Shin-Hyun
    • Korean Journal of Social Welfare
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    • v.38
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    • pp.234-254
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    • 1999
  • Volunteering has been defined as a form of altruistic helping behavior directed at improving other's welfare. Volunteering is, however, also identified as a type of collective action for community welfare. In this regard, this study tests whether neighborhood member's network and collective identity are more important determinants to explain participation in volunteer work than altruistic or normative motivation. This study estimates a model in which volunteering is determined by empathy, normative beliefs, neighborhood networks(friendship, contacts, and integration), and identity as a neighborhood member. This study shows that empathy, normative beliefs, and collective identity as a neighborhood member have significant impacts on participation in volunteer work. In addition, this study reveals that neighborhood member's network has an indirect impact on volunteering through identity as a neighborhood member. These results suggest that neighbor-hood community member's ties and collective identity are important sources for community welfare and collective volunteer work.

  • PDF