• 제목/요약/키워드: resolve

검색결과 4,357건 처리시간 0.023초

Low-Complexity Energy Efficient Base Station Cooperation Mechanism in LTE Networks

  • Yu, Peng;Feng, Lei;Li, Zifan;Li, Wenjing;Qiu, Xuesong
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제9권10호
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    • pp.3921-3944
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    • 2015
  • Currently Energy-Saving (ES) methods in cellular networks could be improved, as compensation method for irregular Base Station (BS) deployment is not effective, most regional ES algorithm is complex, and performance decline caused by ES action is not evaluated well. To resolve above issues, a low-complexity energy efficient BS cooperation mechanism for Long Time Evolution (LTE) networks is proposed. The mechanism firstly models the ES optimization problem with coverage, resource, power and Quality of Service (QoS) constraints. To resolve the problem with low complexity, it is decomposed into two sub-problems: BS Mode Determination (BMD) problem and User Association Optimization (UAO) problem. To resolve BMD, regional dynamic multi-stage algorithms with BS cooperation pair taking account of load and geographic topology is analyzed. And then a distributed heuristic algorithm guaranteeing user QoS is adopted to resolve UAO. The mechanism is simulated under four LTE scenarios. Comparing to other algorithms, results show that the mechanism can obtain better energy efficiency with acceptable coverage, throughput, and QoS performance.

Enantioseparation of Racemic 1,1'Binaphthyl-2,2'diamine by Preparative Liquid Chromatography

  • Ryoo, Jae-Jeong;Kwon, Woo-Jeong;Kim, Tae-Hyuk;Lee, Kwang-Pill;Choi, Seong-Ho
    • Bulletin of the Korean Chemical Society
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    • 제25권9호
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    • pp.1336-1340
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    • 2004
  • The same kind of chiral stationary phase with a commercialized chiral column was used to make preparative chiral columns and was applied to resolve racemic N-acetyl-1-naphthylethylamide (3) by preparative liquid chromatography. An improved chromatographic condition to resolve racemic 3 on the CSP was examined by changing flow rate and kind of the mobile phase and the sample injection volume. The optimized separation conditions were applied to resolve racemic 1,1'-Binaphthyl-2,2'-diamine(4).

와이브로 네트워크에서 음영지역에 대한 중계방식에 관한 연구 (A Study of Relay scheme for shadow area in WiBro network)

  • 손성찬;오정균
    • 한국정보통신설비학회:학술대회논문집
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    • 한국정보통신설비학회 2008년도 정보통신설비 학술대회
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    • pp.394-397
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    • 2008
  • Recently WiBro network is installed for high speed wireless internet service by telecommunication service provider, however WiBro service is not provided in the region of mountain or difficult region to install network infra. Fixed repeater is used to resolve those shadow area problem in current WiBro network. This paper study introducing Ad-hoc based multi-hop relay instead of using fixed repeater in order to resolve those shadow area problem. Cost down of fixed repeater and active network expansion is possible to resolve shadow area problem by introducing multi-hop relay technology.

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Zeno Series, Collective Causation, and Accumulation of Forces

  • Yi, Byeong-Uk
    • 논리연구
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    • 제11권2호
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    • pp.127-170
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    • 2008
  • This paper aims to present solutions to three intriguing puzzles on causation that Benardete presents by considering the results of infinite series of telescoping events. The main conceptual tool used in the solutions is the notion of collective causation, what many events cause collectively. It is straightforward to apply the notion to resolve two of the three puzzles. It does not seem as straightforward to apply it to the other puzzle. After some preliminary clarifications of the situation that Benardete describes to present the puzzle, however, we can apply the notion to resolve it as well.

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배선밀집도 드리븐 배치 (Routing Congestion Driven Placement)

  • 오은경;허성우
    • 정보처리학회논문지A
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    • 제13A권1호
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    • pp.57-70
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    • 2006
  • 본 논문에서는 주어진 상세배치의 배선밀집도를 예측하고, 배선밀집도가 높은 지역을 효과적으로 해결하는 새로운 알고리즘을 소개한다. 제안된 기법의 특징은 다음과 같다. 첫째, 특정지역을 관통하는 넷이 많아 그 지역의 배선밀집도가 높을 경우 관통하는 넷에 연결된 셀들을 효과적으로 찾아내어 그들의 위치를 조정함으로써 배선밀집도를 완화시킨다. 둘째, 리플이동 (ripple movement) 기법을 이용하여 셀들을 이동함으로써 배선길이를 희생시키지 않으면서 배선밀집도를 완화시킨다. 셋째, 셀의 이동에 따른 배선밀집도의 변화 및 배선길이의 변화를 효과적으로 추적할 수 있도록 증분 자료구조 (incremental data structure)를 사용하였기 때문에 실시간으로 변화되는 상황에 적합한 셀 선택이 이루어지며, 실행시간도 매우 빠른 장점이 있다. 마지막으로, 본 논문에서는 MST 넷 모델을 사용하여 배선밀집도를 예측하지만 제안한 기법은 특정 넷 모델에 상관없이 적용할 수 있다. 특히 실제 라우터로부터 배선정보를 얻을 수 있다면, 배선밀집도는 더욱 효과적으로 해결될 수 있다. 제안된 기법을 이용한 실험결과는 배선길이를 희생하지 않으면서 배선밀집도를 매우 효과적으로 개선할 수 있음을 보여준다.

노인의 정보격차 해소를 위한 도서관 정책수립의 고려사항 (A Study on Considerations of the Library Policy Establishment to Resolve Digital Divide of Older Adults)

  • 윤혜영
    • 한국도서관정보학회지
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    • 제48권4호
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    • pp.77-105
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    • 2017
  • 우리사회가 고령사회로 진입하면서 노인의 정보격차 해소는 점점 더 중요하지만, 현실적으로 다른 정보취약계층에 비해 소외되고 있다. 본 연구는 노인의 정보격차 해소를 위한 도서관 정책수립에 고려하여야 할 사항들을 제안하기위해 "국가정보기본법"과 과학기술정보통신부, 문화체육관광부, 보건복지부, 고용노동부의 소속직제를 통해 관련 규정을 살펴본 다음 도서관분야에서는 노인 서비스 지침과 현황을 조사하였다. 연구결과, 노인의 정보격차 해소를 위한 서비스는 전국의 공공도서관을 기본거점기관으로 활용하는 것이 바람직하며, 국가적 차원에서 노인의 정보격차 해소를 위한 서비스가 공공도서관을 통해 체계적이고 지속적으로 이루어져야 한다고 제안하였다.

CBD의 부분 매칭 문제 해결을 위한 커넥터 설계 기법 (A Method to Design Connectors to Resolve Partial Matching Problems in CBD)

  • 민현기;김수동
    • 한국정보과학회논문지:소프트웨어및응용
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    • 제32권12호
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    • pp.1205-1216
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    • 2005
  • 효율적 재사용 기술인 컴포넌트 기반 개발(Component-based Development, CBD)이 보급화되고 있다. 특히 Commercial-Off-The-Shelf (COTS) 컴포넌트는 컴포넌트 내부의 구조 보다 컴포넌트 간의 연결 구조가 중요하다. 컴포넌트 사용자가 요구하는 기능과 적절한 인터페이스를 제공하는 컴포넌트를 식별하여 재사용하는 일은 CBD에서 핵심 작업 중 하나이다 만약 식별된 후보 컴포넌트가 제한된 활용성과 기능을 제공한다면, 컴포넌트 사용자는 어플리케이션을 개발할 때 컴포넌트들을 재사용할 수 없다. 후보 컴포넌트와 사용자가 요구하는 사항과의 불일치를 해결하기 위해 스마트 커넥터가 필요하다. 그러나 기존 연구는 컴포넌트 불일치 해결을 위한 커넥터의 종류는 정의되어 있지만, 컴포넌트간의 부분 매칭을 식별하기 위한 방법과 절차가 부족하다. 본 논문에서는 컴포넌트의 부분 매칭 문제를 식별하기 위한 분류 기법을 제시한다. 이 분류 기법을 이용하여 부분 매칭을 해결하기 위한 스마트 커넥터의 종류를 식별하고, 커넥터를 설계하기 위한 기법을 제안한다. 따라서 부분 매칭 문제를 갖는 컴포넌트도 어플리케이션 개발시 사용될 수 있다.

남북상사중재위원회 운영상의 문제점과 활성화방안 (Problems and Solutions of Commercial Arbitration Committee of South-North Korea)

  • 최석범;박근식;김태환;김재학;박선영
    • 한국중재학회지:중재연구
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    • 제17권1호
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    • pp.157-181
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    • 2007
  • The commercial relationship between South and North Korea is defined under the concept of economic relation and cooperation. To resolve any dispute that can arise from the trade and investment relations between South and North Korea, 'Agreement on the Procedures to Resolve Commercial Arbitration of South-North Korea' came into force in August 2003. Commercial Arbitration Committee of South-North Korea will be organized as the member lists of the committee were exchanged in July 2006 between South and North Korea. This committee must become a central system to settle the trade and investment disputes between South and North Korea. North Korea's Foreign Economic Arbitration Act was enacted to provide the foreign investors with the safe measures in their investments such as dispute resolution. But this Act can not dispute the trade and investment disputes between South and North Korea. The purpose of this paper is to contribute to the activation of arbitration between South and North Korea by studying Commercial Arbitration Committee of South-North Korea introduced by Agreement on the Procedures to Resolve Commercial Arbitration of South-North Korea and Agreement on the Construction and Operation of Commercial Arbitration Committee of South-North Korea and finding the problems and solutions of Commercial Arbitration Committee of South-North Korea.

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가상 예제와 Edit-distance 자질을 이용한 SVM 기반의 단백질명 인식 (SVM-based Protein Name Recognition using Edit-Distance Features Boosted by Virtual Examples)

  • Yi, Eun-Ji;Lee, Gary-Geunbae;Park, Soo-Jun
    • 한국생물정보학회:학술대회논문집
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    • 한국생물정보시스템생물학회 2003년도 제2차 연례학술대회 발표논문집
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    • pp.95-100
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    • 2003
  • In this paper, we propose solutions to resolve the problem of many spelling variants and the problem of lack of annotated corpus for training, which are two among the main difficulties in named entity recognition in biomedical domain. To resolve the problem of spotting valiants, we propose a use of edit-distance as a feature for SVM. And we propose a use of virtual examples to automatically expand the annotated corpus to resolve the lack-of-corpus problem. Using virtual examples, the annotated corpus can be extended in a fast, efficient and easy way. The experimental results show that the introduction of edit-distance produces some improvements in protein name recognition performance. And the model, which is trained with the corpus expanded by virtual examples, outperforms the model trained with the original corpus. According to the proposed methods, we finally achieve the performance 75.80 in F-measure(71.89% in precision,80.15% in recall) in the experiment of protein name recognition on GENIA corpus (ver.3.0).

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Team Management for Better Performance that Sells to Customers: Aligning the Stars

  • Kang, Eungoo;Hwang, Hee-Joong
    • 유통과학연구
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    • 제15권7호
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    • pp.19-24
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    • 2017
  • Purpose - There are several problems that organizations face to make a better team-based system such as free-rider issue, assigned difficult jobs unfairly and bickering between high performers and average performers. The purpose of this study is to provide solutions for practitioners through past academic studies on how organizations can resolve several issues in team management. Ultimately, it would lead to employees as better performers for organization's profitability and customers' satisfaction. Research design, data, and methodology - Solution 1 - put employees who have a similar performance ability together into a same team and apply 'growth' approach for low performance team. Solution 2 - make a new evaluation system which is balanced between individual's performance and team's performance. Solution 3 - monitor thoroughly to diffuse difficult works equally among teams and develop management practice system that may prevent or resolve difficult work-loads for a team or an individual performer. Result - Investigation suggests that organizations may resolve three conflicts which come from team base system. Moreover, the implications of results show that the most important criteria in team management depend on whether performers have a similar ability in the same team and management handles issue of justice and the performance of each employee is evaluated by total team performance evaluation simultaneously. Conclusions - All in all, our recommendation concludes that if three issues are resolved, the lack of trust in team-based system among team members will be missed.