• Title/Summary/Keyword: resolve

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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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    • v.9 no.10
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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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    • v.25 no.9
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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).

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

  • Son, Sung-Chan;Oh, Chung-Gyun
    • 한국정보통신설비학회:학술대회논문집
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    • 2008.08a
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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
    • Korean Journal of Logic
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    • v.11 no.2
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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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Routing Congestion Driven Placement (배선밀집도 드리븐 배치)

  • Oh Eun-Kyung;Hur Sung-Woo
    • The KIPS Transactions:PartA
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    • v.13A no.1 s.98
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    • pp.57-70
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    • 2006
  • This paper describes a new effective algorithm to estimate routing congestion and to resolve highly congested regions for a given detailed placement. The major features of the proposed technique can be summarized as follows. Firstly, if there are congested regions due to some nets which pass through the regions it can determine which cells affect those congested spots seriously and moves some of them to resolve congestion effectively. Secondly, since the proposed technique uses the ripple movement technique to move cells it resolves congestion without sacrificing wire length. Thirdly, we use an efficient incremental data structure to trace the changes in congestion and wire length as cells move. Hence, selection of cells to move could be very accurate and fast in the course of iteration. Finally, although an MST net model is used to resolve congestion in this paper, proposed technique can be work with any net model. Particularly, if proposed technique can obtain routing information from a real router, congestion can be resolved more effectively. Experimental results show that the proposed technique can resolve congestion effectively and efficiently without sacrificing wire length.

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

  • Yoon, Hye-Young
    • Journal of Korean Library and Information Science Society
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    • v.48 no.4
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    • pp.77-105
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    • 2017
  • As our society enters an aged society, it is becoming increasingly important to resolve digital divide of older adults. However, the digital divide of the older adults are generally neglected compared to other information poor. The aim of this study is to propose considerations for library policy development in order to resolve the digital divide of the older adults. The study examined regulation of the Framework Act on National Informatization and the Ministry of Science and ICT, the Ministry of Culture, Sports and Tourism, the Ministry of Health and Welfare, the Ministry of Employment and Labor. Also it investigated guidelines and current status of services to older adults in the library. The study suggested that public libraries should be used as a basic base for the services to resolve the digital divide to older adults across the country, and the services should be organized systematically and sustainably through public libraries.

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

  • Min, Hyun-Gi;Kim, Soo-Dong
    • Journal of KIISE:Software and Applications
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    • v.32 no.12
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    • pp.1205-1216
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    • 2005
  • Component-based Development (CBD) is gaining popularity as an effective reuse technology. Especially commercial-off-the-shelf (COTS) components are mainly for inter-organizational reuse, rather than intra-organizational reuse. One of the essential tasks in CBD is to reuse the right components that provide the functionality and interface required by component consumers. If candidate components provide a limited applicability and customizability, a component consumer cannot reuse the components in application development. To resolve this partial matching problem, we need smart connectors that fill the gap between candidate components and the specification of components required. Previous researches about smart connector describe only connector types to resolve mismatch problems. However, previous researches do not address the identification and design method to resolve the problems. In this paper, we suggest taxonomy of various mismatch problems to identify partial match problems between requirements of the application and components. We identify smart connector types and suggest a systematic process for designing smart connectors using the taxonomy. Therefore, components that have the problems can be used to develop applications.

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

  • Choi, Seok-Beom;Park, Geun-Sik;Kim, Tae-Hwan;Kim, Jae-Hak;Park, Sun-Young
    • Journal of Arbitration Studies
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    • v.17 no.1
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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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SVM-based Protein Name Recognition using Edit-Distance Features Boosted by Virtual Examples (가상 예제와 Edit-distance 자질을 이용한 SVM 기반의 단백질명 인식)

  • Yi, Eun-Ji;Lee, Gary-Geunbae;Park, Soo-Jun
    • Proceedings of the Korean Society for Bioinformatics Conference
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    • 2003.10a
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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
    • Journal of Distribution Science
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    • v.15 no.7
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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.