Significant advances in field-programmable gate arrays （FPGAs） have made it viable to explore innovative multiprocessor solutions on a single FPGA chip. For multiprocessors, an efficient communication network that m...Significant advances in field-programmable gate arrays （FPGAs） have made it viable to explore innovative multiprocessor solutions on a single FPGA chip. For multiprocessors, an efficient communication network that matches the needs of the target application is always critical to the overall performance. Wormhole packet-switching network-on-chip （NoC） solutions are replacing conventional shared buses to deal with scalability and complexity challenges coming along with the increasing number of processing elements （PEs）. However, the quest for high performance networks has led to very complex and resource-expensive NoC designs, leaving little room for the real computing force, i.e., PEs. Moreover, many techniques offer very small performance gains or none at all when network traffic is light while increasing the resource usage of routers. We argue that computation is still the primary task of multiprocessors and sufficient resources should be reserved for PEs. This paper presents our novel design and implementation of a resource-efficient communication network for multiprocessors on FPGAs. We reduce not only the required number of routers for a given number of PEs by introducing a new PE-router topology, but also the resource requirement of each router. Our communication network relies on the NEWS channels to transfer packets in a pipelined fashion following the path determined by the routing network, The implementation results on various Xilinx FPGAs show good performance in the typical range of network load for multiprocessor applications.展开更多
As energy efficiency is one of the key essentials towards sustainability, the development of an energy-resource efficient manufacturing system is among the great challenges facing the current industry. Meanwhile, the ...As energy efficiency is one of the key essentials towards sustainability, the development of an energy-resource efficient manufacturing system is among the great challenges facing the current industry. Meanwhile, the availability of advanced technological innovation has created more complex manufacturing systems that involve a large variety of processes and machines serving different functions. To extend the limited knowledge on energy-efficient scheduling, the research presented in this paper attempts to model the production schedule at an operation process by considering the balance of energy consumption reduction in production, production work flow （productivity） and quality. An innovative systematic approach to manufacturing energy-resource efficiency is proposed with the virtual simulation as a predictive modelling enabler, which provides real-time manufacturing monitoring, virtual displays and decision-makings and consequentially an analytical and multidimensional correlation analysis on interdependent relationships among energy consumption, work flow and quality errors. The regression analysis results demonstrate positive relationships between the work flow and quality errors and the work flow and energy consumption. When production scheduling is controlled through optimization of work flow, quality errors and overall energy consumption, the energy-resource efficiency can be achieved in the production. Together, this proposed multidimensional modelling and analysis approach provides optimal conditions for the production scheduling at the manufacturing system by taking account of production quality, energy consumption and resource efficiency, which can lead to the key competitive advantages and sustainability of the system operations in the industry.展开更多
By analyzing the concept of conservation-minded garden,connotations of such gardens and their significance for the garden construction are specified.From the perspectives of spatial layout,compound planting pattern,tr...By analyzing the concept of conservation-minded garden,connotations of such gardens and their significance for the garden construction are specified.From the perspectives of spatial layout,compound planting pattern,tridimensional greening,terrain processing,utilization of underground spaces,the significance of resource-efficient elements in the construction of conservation-minded garden is respectively discussed.This study proposes that spatial layout of the conservation-minded garden should build vertical transportation,save green spaces,take terrain features into consideration,expand three-dimensional spaces,reasonably plan road network,and improve utilization rate of green spaces;advantages of the compound planting pattern are analyzed;tridimensional greening pattern is analyzed from the perspectives of roof greening and vertical greening;concepts of "core" and "surface" are highlighted in terrain processing;land-saving efficiency of underground garage and market are introduced in terms of the utilization of underground spaces.Design cases are taken as examples to summarize the application of resource-efficient elements to better serve the landscaping industry and provide references for the construction of conservation-minded garden.展开更多
The world today is .faced with the critical challenge of developing industries .for both high technological efficiency and possibly less impact on resources and the environment. This paper employs the Slacks-based mea...The world today is .faced with the critical challenge of developing industries .for both high technological efficiency and possibly less impact on resources and the environment. This paper employs the Slacks-based measure （SBM） to conduct an empirical analysis of China＇s industrial environmental efficiency between 1998 and 2008. We.found a slight decline in SBM nationwide due to the combined effects of resource^environmental constraint as well as technological progress. From a static perspective, there is a clear disparity in coordination among regions, particularly between western regions and eastern coastal regions. From a dynamic perspective, there is limited change in the coordination of industries with natural resources and the environment in coastal and central regions, but a marked decline in the northeast and western regions. This contrast can be traced to the .following reasons： the capital-intensive structure of the economy and the high proportion of large industrial enterprises that restrict the improvement of SBM environmental efficiency. Higher living standards, indigenous innovation, acquisition of new technologies, and foreign direct investment will be conducive to industries＇synchronous development with natural resources and the environment.展开更多
文摘Significant advances in field-programmable gate arrays （FPGAs） have made it viable to explore innovative multiprocessor solutions on a single FPGA chip. For multiprocessors, an efficient communication network that matches the needs of the target application is always critical to the overall performance. Wormhole packet-switching network-on-chip （NoC） solutions are replacing conventional shared buses to deal with scalability and complexity challenges coming along with the increasing number of processing elements （PEs）. However, the quest for high performance networks has led to very complex and resource-expensive NoC designs, leaving little room for the real computing force, i.e., PEs. Moreover, many techniques offer very small performance gains or none at all when network traffic is light while increasing the resource usage of routers. We argue that computation is still the primary task of multiprocessors and sufficient resources should be reserved for PEs. This paper presents our novel design and implementation of a resource-efficient communication network for multiprocessors on FPGAs. We reduce not only the required number of routers for a given number of PEs by introducing a new PE-router topology, but also the resource requirement of each router. Our communication network relies on the NEWS channels to transfer packets in a pipelined fashion following the path determined by the routing network, The implementation results on various Xilinx FPGAs show good performance in the typical range of network load for multiprocessor applications.
基金Supported by the EU 7th Framework ICT Programme under Euro Energest Project(Contract No.288102)
文摘As energy efficiency is one of the key essentials towards sustainability, the development of an energy-resource efficient manufacturing system is among the great challenges facing the current industry. Meanwhile, the availability of advanced technological innovation has created more complex manufacturing systems that involve a large variety of processes and machines serving different functions. To extend the limited knowledge on energy-efficient scheduling, the research presented in this paper attempts to model the production schedule at an operation process by considering the balance of energy consumption reduction in production, production work flow （productivity） and quality. An innovative systematic approach to manufacturing energy-resource efficiency is proposed with the virtual simulation as a predictive modelling enabler, which provides real-time manufacturing monitoring, virtual displays and decision-makings and consequentially an analytical and multidimensional correlation analysis on interdependent relationships among energy consumption, work flow and quality errors. The regression analysis results demonstrate positive relationships between the work flow and quality errors and the work flow and energy consumption. When production scheduling is controlled through optimization of work flow, quality errors and overall energy consumption, the energy-resource efficiency can be achieved in the production. Together, this proposed multidimensional modelling and analysis approach provides optimal conditions for the production scheduling at the manufacturing system by taking account of production quality, energy consumption and resource efficiency, which can lead to the key competitive advantages and sustainability of the system operations in the industry.
文摘By analyzing the concept of conservation-minded garden,connotations of such gardens and their significance for the garden construction are specified.From the perspectives of spatial layout,compound planting pattern,tridimensional greening,terrain processing,utilization of underground spaces,the significance of resource-efficient elements in the construction of conservation-minded garden is respectively discussed.This study proposes that spatial layout of the conservation-minded garden should build vertical transportation,save green spaces,take terrain features into consideration,expand three-dimensional spaces,reasonably plan road network,and improve utilization rate of green spaces;advantages of the compound planting pattern are analyzed;tridimensional greening pattern is analyzed from the perspectives of roof greening and vertical greening;concepts of "core" and "surface" are highlighted in terrain processing;land-saving efficiency of underground garage and market are introduced in terms of the utilization of underground spaces.Design cases are taken as examples to summarize the application of resource-efficient elements to better serve the landscaping industry and provide references for the construction of conservation-minded garden.
文摘The world today is .faced with the critical challenge of developing industries .for both high technological efficiency and possibly less impact on resources and the environment. This paper employs the Slacks-based measure （SBM） to conduct an empirical analysis of China＇s industrial environmental efficiency between 1998 and 2008. We.found a slight decline in SBM nationwide due to the combined effects of resource^environmental constraint as well as technological progress. From a static perspective, there is a clear disparity in coordination among regions, particularly between western regions and eastern coastal regions. From a dynamic perspective, there is limited change in the coordination of industries with natural resources and the environment in coastal and central regions, but a marked decline in the northeast and western regions. This contrast can be traced to the .following reasons： the capital-intensive structure of the economy and the high proportion of large industrial enterprises that restrict the improvement of SBM environmental efficiency. Higher living standards, indigenous innovation, acquisition of new technologies, and foreign direct investment will be conducive to industries＇synchronous development with natural resources and the environment.
