在当今信息时代,随着移动设备、互联网应用以及云计算模式的快速发展,数据中心已成为社会基础设施。然而数据中心面临资源利用率与应用服务质量之间的矛盾,一方面通过多个应用同时在数据中心部署实现资源共享能有效提高资源利用率,另一...在当今信息时代,随着移动设备、互联网应用以及云计算模式的快速发展,数据中心已成为社会基础设施。然而数据中心面临资源利用率与应用服务质量之间的矛盾,一方面通过多个应用同时在数据中心部署实现资源共享能有效提高资源利用率,另一方面多个应用共享资源又会出现相互干扰,严重影响应用的服务质量。因此,目前企业不得不采用预留额外资源以保障延迟敏感的关键应用服务质量,这导致数据中心的利用率很低。并且,随着多核技术的发展,单个服务器内的资源越来越多,其上混合部署的应用数目也在不断增加,更加剧这种矛盾。如何解决资源利用率与应用服务质量之间的矛盾,是数据中心面临的核心挑战之一,同时也为计算机系统结构研究带来很多机遇。文章主要介绍了数据中心所面临的上述矛盾以及一些研究进展,最后介绍了资源可编程体系结构PARD(Programmable Architecture of Resourcing on-Demand)思想,从硬件上支持资源容量隔离与性能隔离,从而保障多应用混合环境下关键应用的服务质量,允许更大程度混合部署应用以提高数据中心资源利用率。展开更多
As a key technology to realize smart services of Internet of Things(IoT), network virtualization technology can support the network diversification and ubiquity, and improve the utilization rate of network resources...As a key technology to realize smart services of Internet of Things(IoT), network virtualization technology can support the network diversification and ubiquity, and improve the utilization rate of network resources. This paper studies the service-ori- ented network virtualization architecture for loT services. Firstly the semantic description method for loT services is proposed, then the resource representation model and resource management model in the environment of network virtualization are presented. Based on the above models, the service-oriented virtual network architecture for loT is established. Finally, a smart campus system is designed and deployed based on the service-oriented virtual network architecture. Moreover, the proposed architecture and models are verified in experiments.展开更多
In 5 G Ultra-dense Network(UDN), resource allocation is an efficient method to manage inter-small-cell interference. In this paper, a two-stage resource allocation scheme is proposed to supervise interference and reso...In 5 G Ultra-dense Network(UDN), resource allocation is an efficient method to manage inter-small-cell interference. In this paper, a two-stage resource allocation scheme is proposed to supervise interference and resource allocation while establishing a realistic scenario of three-tier heterogeneous network architecture. The scheme consists of two stages: in stage I, a two-level sub-channel allocation algorithm and a power control method based on the logarithmic function are applied to allocate resource for Macrocell and Picocells, guaranteeing the minimum system capacity by considering the power limitation and interference coordination; in stage II, an interference management approach based on K-means clustering is introduced to divide Femtocells into different clusters. Then, a prior sub-channel allocation algorithm is employed for Femtocells in diverse clusters to mitigate the interference and promote system performance. Simulation results show that the proposed scheme contributes to the enhancement of system throughput and spectrum efficiency while ensuring the system energy efficiency.展开更多
Factors that influence enterprise resource planning(ERP) implementation in enterprises were described, and according to their interaction with each other, these factors were qualitatively processed by using interpreta...Factors that influence enterprise resource planning(ERP) implementation in enterprises were described, and according to their interaction with each other, these factors were qualitatively processed by using interpretative structural model(ISM) method, and a multilevel stratum structure model for influential factors of implementing ERP was established. Through the model, the critical factors that influence ERP imple- mentation in enterprises can be found. This will have great theoretic and realistic sig- nificance on designing effective management system of ERP implementation in enter- prises.展开更多
To address the challenges posed by resource shortage or surplus to enterprises productivity,Internet platforms have been widely used,which can balance shortage and surplus in broader environments. However,the existing...To address the challenges posed by resource shortage or surplus to enterprises productivity,Internet platforms have been widely used,which can balance shortage and surplus in broader environments. However,the existing resource management models lack openness,sharing ability and scalability,which make it difficult for many heterogeneous resources to co-exist in the same system. It is also difficult to resolve the conflicts between distributed self-management and centralized scheduling in the system. This paper analyzes the characteristics of resources in the distributed environment and proposes a new resource management architecture by considering the resource aggregation capacity of cloud computing. The architecture includes a universal resource scheduling optimization model which has been applied successfully in double-district multi-ship-scheduling multi-container-yard empty containers transporting of international shipping logistics. Applications in all these domains prove that this new resource management architecture is feasible and can achieve the expected effect.展开更多
In order to improve the intelligence of the English teaching management, so as to improve the English teaching resource scheduling and sharing ability, a design method of teaching management system is proposed based o...In order to improve the intelligence of the English teaching management, so as to improve the English teaching resource scheduling and sharing ability, a design method of teaching management system is proposed based on Web. The system adopts Web network architecture design, mainly it is divided into MUC main control module, database module, data management module and man-machine interaction module, Network management and online scheduling of English teaching resources are obtained based on C/S framework, data exchange of English teaching resources is realized on client side and server side, the control component of the English teaching resource distribution database uses MBM29LV400BC as the logic decoding controller. The intelligent algorithm is used to analyze the big data to realize the scheduling and access control of the English teaching management system resources. The test results show that the design of the English teaching management system has good resource scheduling and database construction ability, and the overall intelligence of the system is better.展开更多
Research topic of study is to explore system approach in strategic HRM field. Assumption of study is that, strategic HRM may be applied in organizations by HR system set. In USA literature HPWS represents HR system th...Research topic of study is to explore system approach in strategic HRM field. Assumption of study is that, strategic HRM may be applied in organizations by HR system set. In USA literature HPWS represents HR system thinking. This study explores HR system thinking in human resource management. Second assumption of study is that, HR manager must have system approach in HRM. HRM practices are applied through individual in HRM; however, HRM practices are applied through interrelation in SHRM to have more impact on performance. HR system is bundle, according to MacDuffie's study (1995). In addition, Huselid (1997) suggests application of HPWS in HR system. Study adopts case study methodology. Methods are career management system and performance management system. Research question is how a firm sets an HR system and strategic HRM in its organizational structure. Main conclusion is that HR systems might be applied in organizations through interrelated HRM practices. To achieve this purpose, HR manager must have HR system thinking in application of HRM.展开更多
文摘在当今信息时代,随着移动设备、互联网应用以及云计算模式的快速发展,数据中心已成为社会基础设施。然而数据中心面临资源利用率与应用服务质量之间的矛盾,一方面通过多个应用同时在数据中心部署实现资源共享能有效提高资源利用率,另一方面多个应用共享资源又会出现相互干扰,严重影响应用的服务质量。因此,目前企业不得不采用预留额外资源以保障延迟敏感的关键应用服务质量,这导致数据中心的利用率很低。并且,随着多核技术的发展,单个服务器内的资源越来越多,其上混合部署的应用数目也在不断增加,更加剧这种矛盾。如何解决资源利用率与应用服务质量之间的矛盾,是数据中心面临的核心挑战之一,同时也为计算机系统结构研究带来很多机遇。文章主要介绍了数据中心所面临的上述矛盾以及一些研究进展,最后介绍了资源可编程体系结构PARD(Programmable Architecture of Resourcing on-Demand)思想,从硬件上支持资源容量隔离与性能隔离,从而保障多应用混合环境下关键应用的服务质量,允许更大程度混合部署应用以提高数据中心资源利用率。
基金supported by the national 973 project of China under Grants 2013CB329104the Natural Science Foundation of China under Grants 61372124,61427801,61271237,61271236Jiangsu Collaborative Innovation Center for Technology and Application of Internet of Things under Grants SJ213003
文摘As a key technology to realize smart services of Internet of Things(IoT), network virtualization technology can support the network diversification and ubiquity, and improve the utilization rate of network resources. This paper studies the service-ori- ented network virtualization architecture for loT services. Firstly the semantic description method for loT services is proposed, then the resource representation model and resource management model in the environment of network virtualization are presented. Based on the above models, the service-oriented virtual network architecture for loT is established. Finally, a smart campus system is designed and deployed based on the service-oriented virtual network architecture. Moreover, the proposed architecture and models are verified in experiments.
基金partially supported by the Major Project of National Science and Technology of China under Grants No. 2016ZX03002010003 and No. 2015ZX03001033-002
文摘In 5 G Ultra-dense Network(UDN), resource allocation is an efficient method to manage inter-small-cell interference. In this paper, a two-stage resource allocation scheme is proposed to supervise interference and resource allocation while establishing a realistic scenario of three-tier heterogeneous network architecture. The scheme consists of two stages: in stage I, a two-level sub-channel allocation algorithm and a power control method based on the logarithmic function are applied to allocate resource for Macrocell and Picocells, guaranteeing the minimum system capacity by considering the power limitation and interference coordination; in stage II, an interference management approach based on K-means clustering is introduced to divide Femtocells into different clusters. Then, a prior sub-channel allocation algorithm is employed for Femtocells in diverse clusters to mitigate the interference and promote system performance. Simulation results show that the proposed scheme contributes to the enhancement of system throughput and spectrum efficiency while ensuring the system energy efficiency.
基金Supported by the National Natural Science Foundation of China (70271058) and Shaanxi Province Natural Science Foundation(2002G01)
文摘Factors that influence enterprise resource planning(ERP) implementation in enterprises were described, and according to their interaction with each other, these factors were qualitatively processed by using interpretative structural model(ISM) method, and a multilevel stratum structure model for influential factors of implementing ERP was established. Through the model, the critical factors that influence ERP imple- mentation in enterprises can be found. This will have great theoretic and realistic sig- nificance on designing effective management system of ERP implementation in enter- prises.
基金Support by the National Key Technology Research and Development Program of China(No.2012BAA13B01,2014BAF07B02)the National Natural Science Foundation of China(No.61273038)+1 种基金Natural Science Foundation of Shandong Province(No.ZR2015FM006)Science and Technology Major Project of the Ministry of Science and Technology of Shandong Province(No.2015ZDXX0201B02)
文摘To address the challenges posed by resource shortage or surplus to enterprises productivity,Internet platforms have been widely used,which can balance shortage and surplus in broader environments. However,the existing resource management models lack openness,sharing ability and scalability,which make it difficult for many heterogeneous resources to co-exist in the same system. It is also difficult to resolve the conflicts between distributed self-management and centralized scheduling in the system. This paper analyzes the characteristics of resources in the distributed environment and proposes a new resource management architecture by considering the resource aggregation capacity of cloud computing. The architecture includes a universal resource scheduling optimization model which has been applied successfully in double-district multi-ship-scheduling multi-container-yard empty containers transporting of international shipping logistics. Applications in all these domains prove that this new resource management architecture is feasible and can achieve the expected effect.
文摘In order to improve the intelligence of the English teaching management, so as to improve the English teaching resource scheduling and sharing ability, a design method of teaching management system is proposed based on Web. The system adopts Web network architecture design, mainly it is divided into MUC main control module, database module, data management module and man-machine interaction module, Network management and online scheduling of English teaching resources are obtained based on C/S framework, data exchange of English teaching resources is realized on client side and server side, the control component of the English teaching resource distribution database uses MBM29LV400BC as the logic decoding controller. The intelligent algorithm is used to analyze the big data to realize the scheduling and access control of the English teaching management system resources. The test results show that the design of the English teaching management system has good resource scheduling and database construction ability, and the overall intelligence of the system is better.
文摘Research topic of study is to explore system approach in strategic HRM field. Assumption of study is that, strategic HRM may be applied in organizations by HR system set. In USA literature HPWS represents HR system thinking. This study explores HR system thinking in human resource management. Second assumption of study is that, HR manager must have system approach in HRM. HRM practices are applied through individual in HRM; however, HRM practices are applied through interrelation in SHRM to have more impact on performance. HR system is bundle, according to MacDuffie's study (1995). In addition, Huselid (1997) suggests application of HPWS in HR system. Study adopts case study methodology. Methods are career management system and performance management system. Research question is how a firm sets an HR system and strategic HRM in its organizational structure. Main conclusion is that HR systems might be applied in organizations through interrelated HRM practices. To achieve this purpose, HR manager must have HR system thinking in application of HRM.