(昆明,2009年11月20日)——今天,SEIKO(精工)在昆明翠湖畔为其全新的奢华腕表系列"Ananta"举行了隆重的上市发布活动,这也是该系列在国内的首次亮相。Ananta是梵语"无极限"之意,该系列是在SEIKO(精工)产品研发小组...(昆明,2009年11月20日)——今天,SEIKO(精工)在昆明翠湖畔为其全新的奢华腕表系列"Ananta"举行了隆重的上市发布活动,这也是该系列在国内的首次亮相。Ananta是梵语"无极限"之意,该系列是在SEIKO(精工)产品研发小组被授权可无限探究和创新下诞生的。Ananta系列不但延续了SEIKO(精工) Spring Drive腕表的宁静的革命,更体现了世界最高水准的机械腕表制造工艺。堪称完美的Ananta系列,诠释了SEIKO(精工)对极致完美的无限追求。展开更多
In the complex multicore chip system,network on-chip(NoC)is viewed as a kind of system interconnection that can substitute the traditional interconnect networks,which will improve the system performance and communicat...In the complex multicore chip system,network on-chip(NoC)is viewed as a kind of system interconnection that can substitute the traditional interconnect networks,which will improve the system performance and communication efficiency.With regard to the complex and large scale NoC,simple and efficient routing nodes are the critical factors to achieve low-cost and low-congestion communication performance.This paper proposes an unbuffered switch architecture and makes detailed analysis of the mechanism of buffer in the switch architecture.According to the simulation results,the S-mesh using the unbuffered switch architecture is better in terms of the optimal performance in message latency than some typical NoC architectures,such as 2D-mesh,Fat-tree,Butterfly,Octagon and so on.The synthesis results of design compiler indicate that the unbuffered switch has obvious advantages of achieving cost and operating speed for the chips.展开更多
A 3-D FEA （finite element analysis） transient and steady-state design proposal for high-speed with Nd-Fe-Br （reversible） magnets in aerospace application will be examined under design considerations of n = 12,000 ...A 3-D FEA （finite element analysis） transient and steady-state design proposal for high-speed with Nd-Fe-Br （reversible） magnets in aerospace application will be examined under design considerations of n = 12,000 rpm, short-duty, sinusoidal drive, low cogging, high efficiency at peak torque, and etc. for an ARWM （aerospace retraction wheel motor）. In construction, the PMs （permanent magnets） fixed on the rotor core which is surface-mOunted magnets retained by a carbon-fiber bandage. Redundant windings, resistant to fault propagation have accounted. Besides, an axial water-jacket housing without end-cap cooling has involved. All performed characteristic performances of the correlated ARWM will verify by comparison through 2-D and 3-D FEA results. In this paper, design process has dealing with determination of various kinds of losses such as electromagnetic and mechanical losses. In terms of both classified losses, copper, stator back iron, stator tooth, PM, rotor back iron, air-friction and sleeve losses were calculated. The 3-D end-winding effects were included in the modeled ARWM by the authors.展开更多
文摘(昆明,2009年11月20日)——今天,SEIKO(精工)在昆明翠湖畔为其全新的奢华腕表系列"Ananta"举行了隆重的上市发布活动,这也是该系列在国内的首次亮相。Ananta是梵语"无极限"之意,该系列是在SEIKO(精工)产品研发小组被授权可无限探究和创新下诞生的。Ananta系列不但延续了SEIKO(精工) Spring Drive腕表的宁静的革命,更体现了世界最高水准的机械腕表制造工艺。堪称完美的Ananta系列,诠释了SEIKO(精工)对极致完美的无限追求。
基金Supported by the National High Technology Research and Development Program of China(No.2009AA01Z105)the Ministry of EducationIntel Special Foundation for Information Technology(No.MOE-INTEL-08-05)the Postdoctoral Science Foundation of China(No.20080440942,200902432)
文摘In the complex multicore chip system,network on-chip(NoC)is viewed as a kind of system interconnection that can substitute the traditional interconnect networks,which will improve the system performance and communication efficiency.With regard to the complex and large scale NoC,simple and efficient routing nodes are the critical factors to achieve low-cost and low-congestion communication performance.This paper proposes an unbuffered switch architecture and makes detailed analysis of the mechanism of buffer in the switch architecture.According to the simulation results,the S-mesh using the unbuffered switch architecture is better in terms of the optimal performance in message latency than some typical NoC architectures,such as 2D-mesh,Fat-tree,Butterfly,Octagon and so on.The synthesis results of design compiler indicate that the unbuffered switch has obvious advantages of achieving cost and operating speed for the chips.
文摘A 3-D FEA （finite element analysis） transient and steady-state design proposal for high-speed with Nd-Fe-Br （reversible） magnets in aerospace application will be examined under design considerations of n = 12,000 rpm, short-duty, sinusoidal drive, low cogging, high efficiency at peak torque, and etc. for an ARWM （aerospace retraction wheel motor）. In construction, the PMs （permanent magnets） fixed on the rotor core which is surface-mOunted magnets retained by a carbon-fiber bandage. Redundant windings, resistant to fault propagation have accounted. Besides, an axial water-jacket housing without end-cap cooling has involved. All performed characteristic performances of the correlated ARWM will verify by comparison through 2-D and 3-D FEA results. In this paper, design process has dealing with determination of various kinds of losses such as electromagnetic and mechanical losses. In terms of both classified losses, copper, stator back iron, stator tooth, PM, rotor back iron, air-friction and sleeve losses were calculated. The 3-D end-winding effects were included in the modeled ARWM by the authors.
