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A Resource Access Control Mechanism Considering Grid Accounting (그리드 어카운팅을 고려한 자원 접근 제어 메커니즘)

  • Hwang Ho-Joen;An Dong-Un;Chung Seung-Jong
    • The KIPS Transactions:PartA
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    • v.13A no.4 s.101
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    • pp.363-370
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    • 2006
  • Currently, many people have been researching diverse mechansmims related to a resource access control in Grid environment. Mostly Grid user's resource access control was designed to authorize according to their attributes and roles. But, to provide Grid with resources continuously, a resource access based on utility computing must be controlled. So, in this paper we propose and implement mechanism that intergrates Grid accounting concept with resource access control. This mechanism calcuates costs of Grid service on the basis of accounting, and determines based on user's fund availibility whether they continue to make use of site resources or not. Grid jobs will be controlled according to a site resource access control policy only if the amount of available fund is less than its costs. If Grid job completed, resource consumer pays for the costs generated by using provider's idle resources. Therefore, this paper provides mechansim to be able to control user's resource access by Grid accounting, so that it is evaluated as the research to realize utility computing environment corresponding to economic principle.

DMBase: An Integrated Genetic Information Resource for Diabetes Mellitus

  • Lee, Sun-Young;Park, Young-Kyu;Kim, Jae-Heup;Kim, Young-Joo
    • Interdisciplinary Bio Central
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    • v.3 no.2
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    • pp.6.1-6.3
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    • 2011
  • Diabetes Mellitus (DM), often simply referred to as diabetes, has developed into a major health concern affecting more than 200 million people worldwide with approximately 4 million deaths per year attributed to the presence of the disease. Diabetes mellitus is categorized as Type 1 and Type 2, where Type 1 diabetes represents a lack of insulin production, and Type 2 diabetes is characterized by a relative lack of insulin receptor (i.e., decreased sensitivity to the effect of insulin) and cased by a complex interplay between genetic factors and environmental factors. Up to date, various studies on the pathology and mechanism in terms of genetic experiments have been conducted and approximately hundreds of genes were reported as diabetes mellitus associated genes. At this point, to support studies on the cause and mechanism of diabetes mellitus, an efficient database system to provide genetic variants related to diabetes mellitus is needed. DMBase is an integrated web-based genetic information resource for diabetes mellitus designed to service genomic variants, genes, and secondary information derived for diabetes mellitus genetics researchers. The current version of DMBase documents 754 genes with 3056 genetic variants and 66 pathways. It provides many effective search interfaces for retrieving diabetes mellitus and genetic information. A web interface for the DMBase is freely available at http://sysbio.kribb.re.kr/dmBase.

Resource Allocation Scheme for Public Safety Communications with High-Power User Equipment (재난안전통신 환경에서 고출력 단말의 자원할당 기법)

  • Nam, Jong-Hyun;Shin, Oh-Soon
    • Journal of the Institute of Electronics and Information Engineers
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    • v.54 no.2
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    • pp.9-15
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    • 2017
  • In this paper, we propose a resource allocation scheme for high-power user equipment (HPUE) in public safety communication environments. The use of HPUE is being considered to increase the throughput and communication range of a UE in the disaster area where normal communication links are not available. However, HPUE may cause higher interference to UE's in adjacent cells that are allocated to the same radio resources. Therefore, it is necessary to deal with the potential interference through frequency planning and resource allocation. The performance of the proposed resource allocation scheme is evaluated through simulations in 3GPP public safety communication scenarios.

Resource Availability-based Multi Auction Model for Cloud Service Reservation and Resource Brokering System (자원 가용성 기반 다중 경매 모델을 이용한 서비스 예약형 클라우드 자원 거래 시스템)

  • Lee, Seok Woo;Kim, Tae Young;Lee, Jong Sik
    • Journal of the Korea Society for Simulation
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    • v.23 no.1
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    • pp.1-10
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    • 2014
  • A cloud computing is one of a parallel and distributed computing. The cloud computing provides some service for user with virtual resources. However, a user's service request does not show a time pattern. As a result, each resource also shows a different availability at the same time. This difference affects a quality of service (QoS) and a resource selection for users. Therefore, we propose the resource availability-based multi auction model for cloud service reservation and resource brokering system. The proposed system is to select the proper resource provider based on the users' request. The proposal adopts the multi phase of the auction to transact resources. The system evaluates the available factor of each resource on the auction phase, and finally reserves the service on the adaptive queue. The proposed model shows the better performance than other existing method.

Design of a Policy-based Security Mechanism for the Secure Grid Applications (안전한 그리드 응용을 위한 정책기반의 보안 기능 설계)

  • Cho, Young-Bok;You, Mi-Kyung;Lee, Sang-Ho
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.2
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    • pp.901-908
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    • 2011
  • For the available grid environmental realization, the resource supply PC must have to provide an appropriate security function of their operation environments. SKY@HOME is a kind of the grid computing environments. If this has not supervised by administrator handling smoothly, it is inherently vulnerable state to the security level of the grid environments, because the resource supply PC is not update a security function without delay. It is also have the troublesome problems which have to install of an additional security program for support the appropriate security. This paper proposes an integration security model on the policy-based that provides an update each level according to the situation of the resource supply PC for improving its problems as a security aspect of the SKY@HOME. This model analyzes the security state of the resource supply PC respectively, and then the result is available to provide an appropriate security of the resource supply PC using an integration security model. The proposed model is not need additionally to buy and install the software, because it is provided the security management server oriented service. It is also able to set up the suit security function of a characteristic of the each resource supply PC. As a result, this paper clearly show the participation of resource supply PC improved about 20%.

Self-adaptive IoT Software Platform for Interoperable Standard-based IoT Systems (협업가능 표준기반 IoT 시스템을 위한 자가적응 IoT 소프트웨어 플랫폼 개발)

  • Sung, Nak-Myoung;Yun, Jaeseok
    • IEMEK Journal of Embedded Systems and Applications
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    • v.12 no.6
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    • pp.369-375
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    • 2017
  • In this paper, we present a self-adaptive software platform that enables an IoT gateway to perform autonomous operation considering IoT devices connected each other in resource-constrained environments. Based on the oneM2M device software platform publicly available, we have designed an additional part, called SAS (self-adaptive software) consisting of MAM (memory-aware module), NAM (network-aware module), BAM (battery-aware module), DAM (data-aware module), and DH (decision handler). A prototype system is implemented to show the feasibility of the proposed self-adaptive software architecture. Our proposed system demonstrates that it can adaptively adjust the operation of gateway and connected devices to their resource conditions under the desired service scenarios.

A Study on the Local Resources Industrial in Gimpo (김포지역 산업화 유망 향토자원 발굴 조사연구)

  • Kim, Mi-Heui;Lee, Young-Ok;Lee, Gi-Man
    • Journal of Agricultural Extension & Community Development
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    • v.16 no.4
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    • pp.993-1019
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    • 2009
  • Local resources can be employed as an original resource for local revitalization. This study has investigated the local resource, and then categorized these to suggest the implication available to the industrialization. Local resources were classified into 5 categories(with 25 subcategories), including remains and ruins, ethnic custom, manners and customs, people, traditional food and the principal product, and the natural ecology environment. Three phases were carried out in this study. We made lists of local resources and analyzed applicable resources among the lists. Also, we selected the target resources for the survey in Gimpo, and also analyzed the application for industrialization. Of all these resources, 560 cases were first investigated, then 51 local resources were in-depth analyzed. Based on this result, the application plan was investigated, dividing the central resources and the connection resources.

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Proportional Fair Scheduling Algorithm in OFDMA-Based Wireless Systems with QoS Constraints

  • Girici, Tolga;Zhu, Chenxi;Agre, Jonathan R.;Ephremides, Anthony
    • Journal of Communications and Networks
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    • v.12 no.1
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    • pp.30-42
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    • 2010
  • In this work we consider the problem of downlink resource allocation for proportional fairness of long term received rates of data users and quality of service for real time sessions in an OFDMA-based wireless system. The base station allocates available power and subchannels to individual users based on long term average received rates, quality of service (QoS) based rate constraints and channel conditions. We formulate and solve a joint bandwidth and power optimization problem, solving which provides a performance improvement with respect to existing resource allocation algorithms. We propose schemes for flat as well as frequency selective fading cases. Numerical evaluation results show that the proposed method provides better QoS to voice and video sessions while providing more and fair rates to data users in comparison with existing schemes.

SCHEDULING REPETITIVE PROJECTS WITH STOCHASTIC RESOURCE CONSTRAINTS

  • I-Tung Yang
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.881-885
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    • 2005
  • Scheduling repetitive projects under limitations on the amounts of available resources (labor and equipment) has been an active subject because of its practical relevance. Traditionally, the limitation is specified as a deterministic (fixed) number, such as 1000 labor-hours. The limitation, however, is often exposed to uncertainty and variability, especially when the project is lengthy. This paper presents a stochastic optimization model to treat the situations where the limitations of resources are expressed as probability functions in lieu of deterministic numbers. The proposed model transfers each deterministic resource constraint into a corresponding stochastic one and then solves the problem by the use of a chance-constrained programming technique. The solution is validated by comparison with simulation results to show that it can satisfy the resource constraints with a probability beyond the desired confidence level.

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"Bioregionalism and Political Ecology: New Theoretical Directions for Regional Geography and Resource-Use Management?"

  • Hipwell, William T.
    • Proceedings of the KGS Conference
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    • 2004.05a
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    • pp.94-94
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    • 2004
  • In this paper the author surveys the available literature on "bioregionalism", a relatively new intellectual tradition evolved from the North American environmental social movements of the 1970s and 1980s. The so-called "bioregional approach" is gaining acceptance among environmental planners in North America and elsewhere, and has attracted the attention of some geographers. (omitted)ographers. (omitted)

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