• 제목/요약/키워드: N-Policy

검색결과 955건 처리시간 0.028초

N-VOD 서버에서 VCR 서비스를 위한 효율적인 버퍼 및 디스크 스케쥴링 (An Efficient Buffering and Disc Scheduling for VCR-Like N-VOD Services)

  • 최성욱
    • 한국컴퓨터산업학회논문지
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    • 제7권3호
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    • pp.217-226
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    • 2006
  • 멀티미디어 스트림은 일반적으로 용량이 크고, 서로 다른 미디어간의 동기화가 필요하며 실시간으로 재생되어져야 한다는 특징이 있다. 그러므로 N-VOD 서버에 관계된 연구는, 궁극적으로 디스크 대역폭이나 버퍼의 크기 등 서버의 주어진 자원 한계 아래에서 얼마만큼 사용자의 수를 최대화 하느냐에 주된 관심이 되고 있다. 본 논문에서는 효율적인 멀티미디어 서비스를 위하여 서버의 자원을 관리하여 효율적으로 서비스를 할 수 있는 VCR 조작이나 버퍼 및 디스크 관리정책을 제안한다. 시뮬레이션 해본 결과 전통적인 방식보다 버퍼의 활용과 서비스 처리시간에서 약 18% 정도 향상된 성능을 보였는데, 이는 서비스 사용자의 수를 증가 시키는 문제와 밀접한 관련이 있다.

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조선시대 금화시책(禁火施策)의 전개과정에 관한 연구 - 금화정책, 금화계획, 금화사업, 금화시설을 중심으로 - (A Study on the Progression of Fire Control Policies in Joseon Dynasty - Regal & Administrative System, Planning Tools, Works and Facilities -)

  • 김상희;이경찬
    • 한국전통조경학회지
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    • 제31권3호
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    • pp.12-24
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    • 2013
  • 도시 전체가 화재에 취약한 구조를 가지고 있었던 조선시대 화재는 많은 재산피해와 인명피해를 가져왔지만, 다른 한편으로 화재를 예방하고 피해를 최소화하기 위한 다양한 정책과 계획수법, 기술과 시설들이 발달하는 계기가 되었다. 본 연구는 화재와 관련한 정책, 계획, 건축, 구조물 시설물 등을 중심으로 조선시대 전반에 걸쳐 이루어진 금화시책의 흐름을 파악하고자 하는 목적을 지니고 있다. 조선시대의 금화시책은 그 목적에 따라 화재예방을 위한 비보풍습(裨補風習)과 비화(備火)시책, 화재 확산을 막기 위한 경계(境界)시책, 화재를 끄기 위한 멸화(滅火)시책, 구화(救火)시책 등으로 구분된다. 조선시대에 이루어진 금화시책은 크게 3단계로 구분된다. 먼저 태종대로부터 문종대에 이르는 시기로, 이 시기에는 행정 및 사법체제 정비, 금화행정, 금화계획, 금화사업, 금화기구 개발 등 다양한 측면에서 금화정책이 시행되고 있다. 제2단계는 기와를 공급하는 관아가 소멸되는 단종대부터 현종대에 이르는 시기로, 부분적인 금화사업을 중심으로 금화정책이 진행되고 있다. 제3단계는 숙종대부터 순종대에 이르는 시기로 금화사업보다는 금화기구 개발을 중심으로 금화정책이 진행되고 있다.

통킹만 경계획정을 통해본 중국의 해양경계획정 정책 및 우리나라 대응방안에 관한 연구 (A Study on the Maritime Delimitation Policy of China on Maritime Delimitation in Tonkin Gulf and Policy of Korea)

  • 양희철;박성욱;정현수
    • Ocean and Polar Research
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    • 제29권3호
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    • pp.245-262
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    • 2007
  • On 25 December 2000, China and Vietnam signed the Agreement on the Delimitation of the Territorial Seas, EEZs and Continental Shelves in the Tonkin Gulf. Three and a half years after signature, in June 2004, China and Vietnam both ratified a maritime boundary agreement for the Tonkin Gulf (Beibu Gulf) and the agreement entered into force. A potentially complicating factor in the negotiation process was likely to have been the status of the Sino-French Agreement of 1887. In the end, the agreement reached indicated that even if the status of the Sino-French Agreement of 1887 was part of the negotiations, both sides eventually agreed that it would not have an impact on the delimitation of maritime zones in the Gulf of Tonkin. Another crucial issue was the impact of the islands, in particular, the Vietnamese controlled Bach Long Vi Island and Con Co Island. Especially, Bach Long Vi Island was entitled to a half suite of maritime zones (3n.m. EEZ) and would impact the tracing of a line of equidistance in the Gulf of Tonkin. Minor as the point might be, Con Co Island also would have an impact for it would play a fixing terminal point for the boundary. Article 7 of the agreement is about minerals and hydrocarbons of cross-boundary deposit, and if any single geophysical structure of oil and gas or other mineral deposits should straddle the demarcation line, an agreement is to be reached on the development of the structure or deposit and on the most effective manner to equally share the profits resulting from the development.

의료이용의 지역간 격차 -3차성 내과계 진단군을 중심으로- (Regional Difference of Health Care Utilitzation in Korea)

  • 신영전;이원영;문옥륜
    • 보건행정학회지
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    • 제9권1호
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    • pp.72-109
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    • 1999
  • This study is conducted to investigate the current status on the utilization of health care and plan for solving this problem. The claims data of the fiscal tear 1995 obtained from the regional health insurance society are used for the study. The main findings of the study are summarized as follows. Indexes(The Extremal Quotient(EQ), coefficients of variance(CV's))which represent the regional difference in the admission rate of the tertiary medical diagnosis group report that there is difference in quantity and quality of utilization of health care. The admission rate is lower in the big city areas, Kyoungkido, Kangwondo and Chunlapukdo. Even after age-sex adjustment, the admission rate is still low in Kangwondo, Chunlapukdo and Kyoungsangpukdo. The big city areas tend to have higher rates in the expenses per claim, hospital days per claim, and daily expenses but the rates are still low in some area in Kangwondo, Chunlanamdo and Kyoungsangpukdo. This result remains as same after age-sex adjustment. There is a large regional difference in average utilization rate for the tertiary hospital of the tertiary medical diagnosis group: 57.2%(SD 11.53). The utilization rates for the tertiary hospital in their large catchment area are 96.34%, 83.19% and 73.22% in each Kyoungin, Kyoungnam and Kyoungpuk areas whereas it is lower in a Chungpuk and Chungnam areas. The regional differences of health care utilization of the tertiary medical diagnosis group gave some relationships with their geographical characteristics such as socio-economic characteristics and supply factors of medical services. It is important that many medical policies should be developed in order to minimize and balance out the regional differences of health care utilization. The service allocation policy should include the reconstruction of manpower policy, developing the resource allocating formula, finding the self-sufficient catchment area and reforcing of public health services. Moreover, in order to achieve the balanced development by region, they should investigate and consider each county's microscopic properties under the consistent macrocopic policy. The further studies to find causes of regional difference are needed.

Adoption and Implementation of Tobacco Control Policies in Schools in India: Results of the Bihar School Teachers Study

  • Mathur, N;Pednekar, MS;Sorensen, GS;Nagler, EM;Stoddard, AM;Lando, HA;Aghi, MB;Sinha, DN;Gupta, PC
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권6호
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    • pp.2821-2826
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    • 2016
  • Implementation of no tobacco policies in schools is associated with lower tobacco use among teachers and students. In this study we assessed the extent that a school-based intervention for teachers resulted in adoption and implementation of tobacco control policies. From a random sample of government schools ($8^{th}-10^{th}$), 72 were randomized into intervention and control conditions. Intervention included health education programs for teachers and support for tobacco control policy implementation. Adoption and implementation of policies were assessed at baseline and immediately after intervention. All 36 intervention and one control school adopted a tobacco-control policy. Higher enforcement of tobacco-control policy was at post intervention (OR=3.26; CI: 2.35, 4.54) compared to baseline in intervention schools. Some 64% of intervention and 28% control schools showed "improvement" in policy implementation. Adoption and implementation of no tobacco policies was positively impacted by intervention. This study provides support for scaling up of school-based tobacco control interventions to promote school tobacco control policies.

Monitoring Compliance and Examining Challenges of a Smoke-free Policy in Jayapura, Indonesia

  • Wahyuti, Wahyuti;Hasairin, Suci K.;Mamoribo, Sherly N.;Ahsan, Abdillah;Kusuma, Dian
    • Journal of Preventive Medicine and Public Health
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    • 제52권6호
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    • pp.427-432
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    • 2019
  • Objectives: In Indonesia, 61 million adults smoked in 2018, and 59 million were exposed to secondhand smoke at offices or restaurants in 2011. The Presidential Decree 109/2012 encouraged local governments to implement a smoke-free policy (SFP), and the city of Jayapura enacted a local bill (1/2015) to that effect in 2015. This study aimed to evaluate compliance with this bill and to explore challenges in implementing it. Methods: We conducted a mixed-methods study. Quantitatively, we assessed compliance of facilities with 6 criteria (per the bill): the presence of signage, the lack of smoking activity, the lack of sale of tobacco, the lack of tobacco advertisements, the lack of cigarette smoke, and the lack of ashtrays. We surveyed 192 facilities, including health facilities, educational facilities, places of worship, government offices, and indoor and outdoor public facilities. Qualitatively, we explored challenges in implementation by interviewing 19 informants (government officers, students, and community members). Results: The rate of compliance with all 6 criteria was 17% overall, ranging from 0% at outdoor public facilities to 50% at health facilities. Spatial patterning was absent, as shown by similar compliance rates for SFP facilities within a 1-km boundary around the provincial and city health offices compared to those outside the boundary. Implementation challenges included (1) a limited budget for enforcement, (2) a lack of support from local non-governmental organizations and universities, (3) a lack of public awareness at the facilities themselves, and (4) a lack of examples set by local leaders. Conclusions: Overall compliance was low in Jayapura due to many challenges. This information provides lessons regarding tobacco control policy in underdeveloped areas far from the central government.

Linkage Disequilibrium and Effective Population Size in Hanwoo Korean Cattle

  • Lee, S.H.;Cho, Y.M.;Lim, D.;Kim, H.C.;Choi, B.H.;Park, H.S.;Kim, O.H.;Kim, S.;Kim, T.H.;Yoon, D.;Hong, S.K.
    • Asian-Australasian Journal of Animal Sciences
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    • 제24권12호
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    • pp.1660-1665
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    • 2011
  • This study presents a linkage disequilibrium (LD) analysis and effective population size ($N_e$) for the entire Hanwoo Korean cattle genome, which is the first LD map and effective population size estimate ever calculated for this breed. A panel of 4,525 markers was used in the final LD analysis. The pairwise $r^2$ statistic of SNPs up to 50 Mb apart across the genome was estimated. A mean value of $r^2$ = 0.23 was observed in pairwise distances of <25 kb and dropped to 0.1 at 40 to 60 kb, which is similar to the average intermarker distance used in this study. The proportion of SNPs in useful LD ($r^2{\geq}0.25$) was 20% for the distance of 10 and 20 kb between SNPs. Analyses of past effective population size estimates based on direct estimates of recombination rates from SNP data demonstrated that a decline in effective population size to $N_e$ = 98.1 occurred up to three generations ago.

바이오에너지 (바이오가스, 바이오매스) 기술의 온실가스 감축산정: 국내를 대상으로 (Estimation of Greenhouse Gas (GHG) Reductions from Bioenergy (Biogas, Biomass): A Case Study of South Korea)

  • 정재형;김기만
    • 한국대기환경학회지
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    • 제33권4호
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    • pp.393-402
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    • 2017
  • In this study, greenhouse gas (GHG) reductions from bioenergy (biogas, biomass) have been estimated in Korea, 2015. This study for construction of reduction inventories as direct and indirect reduction sources was derived from IPCC 2006 guidelines for national greenhouse gas inventories, guidelines for local government greenhouse inventories published in 2016, also purchased electricity and steam indirect emission factors obtained from KPX, GIR respectively. As a result, the annual GHG reductions were estimated as $1,860,000tonCO_{2eq}$ accounting for 76.8% of direct reduction (scope 1) and 23.2% of indirect reduction (scope 2). Estimation of individual greenhouse gases (GHGs) from biogas appeared that $CO_2$, $CH_4$, $N_2O$ were $90,000tonCO_2$ (5.5%), $55,000tonCH_4$ (94.5%), $0.3tonN_2O$ (0.004%), respectively. In addition, biomass was $250,000tonCO_2$ (107%), $-300tonCH_4$ (-3.2%), $-33tonN_2O$ (-3.9%). For understanding the values of estimation method levels, field data (this study) appeared to be approximately 85.47% compared to installed capacity. In details, biogas and biomass resulting from field data showed to be 76%, 74% compared to installed capacity, respectively. In the comparison of this study and CDM project with GHG reduction unit per year installed capacity, this study showed as 42% level versus CDM project. Scenario analysis of GHG reductions potential from bioenergy was analyzed that generation efficiency, availability and cumulative distribution were significantly effective on reducing GHG.

대학광고의 차별화 전략에 관한 사례연구 -남서울대학교의 N+캠페인 광고를 중심으로- (A Case Study on the differentiation strategy of University Advertising)

  • 윤일기
    • 디지털융복합연구
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    • 제10권2호
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    • pp.311-321
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    • 2012
  • 본 논문을 통하여 2011년에 시작하여 현재 집행되고 있는 남서울대학교의 N+캠페인 광고사례를 살펴보고 대학 광고의 차별화 가능성을 모색해보고자 했다. N+ 캠페인 광고는 남서울대의 창학이념이 충분히 반영된 지식 위에 인성이 더해진 섬기는 리더를 양성하려는 의미가 담겨져 있으며 전파광고 및 인쇄광고, 온라인 광고, 옥외광고 등의 매체를 통해 일관된 크리에이티브를 전개하였다. 1단계에서는 N+의 탄생과 의미를 알리는 내용으로, 2단계에서는 N+의 실체를 알림으로써 타겟으로부터 공감을 유도할 수 있는 내용으로 전개하였다. 치열한 학생유치의 경쟁 속에 살아남기 위한 홍보경쟁이 가속화되고 있는 이 시대에 남서울대의 N+캠페인 광고는 대학광고의 차별적 접근이자 외부공중에게는 학교의 존재와 정체성을 제대로 알리고, 내부공중에게는 자긍심과 결속을 유도하는 효과를 보고 있다. 또한 오늘날 대학이 진정으로 중요시해야 하는 것이 무엇인지를 제시하는 의미를 갖고 있기도 하다.

Evaluation of a Community-Based Program for Breast Self-Examination Offered by the Community Health Nurse Practitioners in Korea

  • Lee, Chung-Yul;Kim, Hee-Soon;Ko, Il-Sun;Ham, Ok-Kyung
    • 대한간호학회지
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    • 제33권8호
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    • pp.1119-1126
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    • 2003
  • Background. Breast cancer is the most common form of cancer among Korean women. Only 14 % of urban women and 10% of rural women in Korea, however, participated in breast cancer screening behavior in 1998 (Korean Ministry of Health & Welfare, 1999). Purpose. The aim of this study was to evaluate the effect of community-based breast self-examination (BSE) education programs in Korea. Methods. First, breast cancer risk appraisals were done with 1,977 rural women. Of the 1,977 women, nearly 30% (n=494) had a higher or equal to borderline risk of developing breast cancer. This quasi-experimental study was conducted to target these women with a high or equal to borderline risk of breast cancer. The risk appraisal feedback and breast self-examination education were used as an intervention for breast cancer prevention and early detection. Results. After a 3-month follow-up, 30.5% of the women in the intervention group performed regular BSE compared to 10.2 % of women in the control group. The mean knowledge score related to breast cancer and BSE was significantly higher for the women in the intervention group than that in the control group.