检索结果-内蒙古大学图书馆

11th International Conference on Electrical Machines and Systems(第11届国际电机与系统会议)

作者： dexin Xie Xiaoyan Wang Junjie Zhang Zhiguang Cheng Department of Electrical Engineering Shenyang University of Technology China R&D Center Baoding Tianwei Group China

A new method to analyze the losses of core of power transformers is proposed. Epstein frame and specimens that are sheared at different angles to rolling direction to measure B-H curves and Wt-B curves of grain-oriented silicon steel sheets are used with this method to take account of anisotropy of the core. The computational results using both the conventional and proposed methods of the iron loss of a three-phase transformer are compared to validate the new proposal.

关键词： Transformer cores Anisotropic magnetoresistance Magnetic field measurement Steel Magnetic cores Silicon Magnetic flux density Phase transformers Magnetic properties Magnetic fields

来源：评论

学校读者我要写书评

暂无评论

The Effect of Curvature of a Spacer-filled Channel on Fluid Flow in Spiral-Wound Membrane Modules

The Effect of Curvature of a Spacer-filled Channel on Fluid ...

引用

2008亚太海水淡化与水再利用会议、亚洲科学理事会暨海洋科技与经济发展国际论坛

作者： Yu-Ling Li Kuo-Lun Tung R&D Center of Membrane.Technology and Dept.of Chemical Engineering Chung Yuan UniversityTai Wan

uid flow through a spiral-wound membrane module was investigated using a computational fluid dynamic(CFd)*** flow phenomenon through spacer-filled channels depends on geometries：characteristic angle，mesh size，voidage and filament ***，little emphasis has been placed on studying this property and its effect on the performance of the membrane *** study focused on the influence of the curvature of spacer-filled channels on the pressure drop and shear stress distributions in spiral-wound membrane *** results show that there are inherent changes in the hydrodynamic behavior of the spacer-filled channel due to curvature *** increase in curvature of the spacer-filled channel results in an increase in the difference in shear stress between the inner and outer *** conjecture from the simulated numerical *** imbalance of shear stress between the inner and outer walls may result in an unequal deposition ot colloidal material between these two regions and could shorten the service time of the *** understanding derived from the CFd analysis could improve the construction of a better spacer and module design，which could optimize the filament arrangement and the membrane module performance.

关键词： computational fluid dynamic curvature curved channel spacer spiral-wound membrane module

来源：评论

学校读者我要写书评

暂无评论

Study on the reuse of dyeing Waste Water by the Ultrafiltration and reverse Osmosis Process

Study on the Reuse of Dyeing Waste Water by the Ultrafiltrat...

引用

The 12th Asian Pacific Confederation of Chemical engineering Congress

作者： Shahda Munib Membrane Science and Engineering R&D Lab Chemical Engineering Research CenterEast China University of Science and Technology Shanghai 200237 China

The ultrafiltration(UF)and reverse osmosis (rO) used as the core membrane technology were applied for the reuse of the waste water drained from a synthesis dyeing waste water plant. The two membrane stages of UF and rO process were *** practical operation pa- rameters,the final product water quality of rO were *** process could obtain an eco- nomic operating expense and achieve a high water recovery *** assembled membrane processes created a new way for the utilization of waste water and gained good social benefits.

关键词： ultrafiltration reverse osmosis water reuse operation parameters

来源：评论

学校读者我要写书评

暂无评论

A novel high efficient scheduling algorithm for buffered crossbar switches

A novel high efficient scheduling algorithm for buffered cro...

引用

International Conference on Communications and Networking in China (CHINACOM)

作者： Peng Yi Shumin Chen Binqiang Wang National Digital Switch System Engineering & Technology R&D Center (NDSC) Zhengzhou China PLA Information Engineering University Zhengzhou China

With the development of ASIC technology, buffered-crossbar (CICQ) switch is becoming more and more attractive, and many scheduling algorithms have been proposed based on this architecture. However, the existing schemes are either still a little complicated in hardware implementation or low efficient in scheduling performance. In this paper, we propose a simple and high efficient scheduling algorithm called maximum urgency first (MUF). Since the MUF algorithm systematically evaluates the scheduling demands of both the input queues and the crosspoint queues in arbitrations of input scheduling, it not only can sufficiently make use of the output bandwidth, but also can efficiently control the increment of the input queue length. By compressing the queue length of the input queue and the crosspoint queue into the input urgency (IU) and the output urgency (OU), the implementation complexity of the MUF algorithm is largely decreased. Simulation results show that MUF can obtain better stability and delay performance than traditional scheduling schemes presented for CICQ switches.

关键词： Scheduling algorithm Switches delay Iterative algorithms Packet switching Throughput Traffic control round robin Impedance matching Scalability

来源：评论

学校读者我要写书评

暂无评论

Partial structure of Pd42:5Ni7:5Cu30P20 bulk metallic glass

引用

Journal of Physics: Conference Series 2009年第1期144卷

作者： S Hosokawa J-F Bérar N Boudet T Ichitsubo E Matsubara N Nishiyama Center for Materials Science Using Third-Generation Synchrotron Radiation Facilities Hiroshima Institute of Technology 731-5193 Hiroshima Japan Physikalische Chemie Fachbereich Chemie Philipps Universit'at Marburg D-35032 Marburg Germany Institut N'eel CNRS BP 166 F-38042 Grenoble Cedex France Department of Materials Science and Engineering Graduate School of Engineering Kyoto University Kyoto 606-8501 Japan R&D Institute of Metals and Composites for Future Industries (RIMCOF) Sendai 980-8577 Japan

In order to study local structure in Pd42.5Ni7.5Cu30P20 excellent bulk metallic glass-former, an anomalous x-ray scattering (AXS) experiment was performed at energies close to the Pd, Ni and Cu K absorption edges together with the reference Pd40Ni40P20 and Pd40Cu40P20 glasses at the beamline BM02 of the ESrF. The differential structure factors, ΔiS(Q), were obtained with a good statistical quality. A small shoulder observed at about 19 nm-1 in S(Q) becomes prominent in ΔPdS(Q), indicating a Pd-Pd atomic correlation of 0.32 nm. This pre-shoulder was not observed in Pd40Ni40P20 bulk glass having a slightly worse critical-cooling-rate, but in Pd40Cu40P20 glass ribbon available by only ultrafast quenching. It is suggested that covalently bonded Pd-P-Pd connection with an almost right bond angle would be formed by replacing the Ni with the Cu atoms. From the obtaining differential pair distribution function around the Pd K edge, ΔPdg(r), the first peak position in Pd42.5Ni7.5Cu30P20 shows a longest atomic distance among the glasses and the width of the first peak is slightly narrower than that in Pd40Cu40P20. Thus, a more uniform atomic arrangement around Pd atoms with a loose packing, i.e., a longer and uniform Pd sublattice, is expected for Pd42.5Ni7.5Cu30P20 compared to the other two reference glasses.

关键词：

来源：评论

学校读者我要写书评

暂无评论

development of Embedded robot Controller for Shipbuilding

引用

IFAC Proceedings Volumes 2008年第2期41卷 5279-5284页

作者： Won-Bae Kim Young Seok Lee Kyoung don Lee Seung Ho Lee Soo Ho Kim Center for Robot Technology & Manufacturing Institute for Advanced Engineering Yongin Kyunggi-do Korea Automation R&D Institute DAEWOO Shipbuilding & Marine Engineering Ltd.) Okpo Kyungsangnam-do Korea

This paper describes a development of a small and high-performance embedded controller system in order to apply it to a robot system for improving productivity in shipbuilding. The development of such an embedded controller was performed as a coherent design and development through applying a digital signal processor. The product developed in this study consists of a CPU board including vision functions, motion and driver boards for servo motor controls, and input/out and power board. Also, various communication protocols were implemented in the development process by considering their expansibility and flexibility. In addition, a robot controller system was developed to communicate external robot operation systems as a manner of wired and wireless communication. Furthermore, this study performed functional and environmental tests to verify the stable operation of such a robot controller under internal or external poor working conditions.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The FlexCode speech and audio coding approach

The FlexCode speech and audio coding approach

引用

8. ITG-Fachtagung Sprachkommunikation 2008 - 8th ITG Conference on Speech Communication 2008

作者： Bruhn, Stefan Grancharov, Volodya Bastiaan Kleijn, W. Klejsa, Janusz Li, Minyue Plasberg, Jan Pobloth, Harald ragot, Stephane Vasilache, Adriana ACCESS Linnaeus Center Electrical Engineering KTH - Royal Institute of Technology Stockholm10044 Sweden Nokia Research Center Visiokatu 1 Tampere33720 Finland France Télécom R&D TECH SSTP Av. Pierre Marzin Lannion Cedex22307 France Multimedia Technologies Ericsson Research Sweden

ISBN: (纸本)9783800731206

The increasing heterogeneity of communication networks and the variability in user requirements form a challenge for source coding algorithms. To address this challenge, the aim of the FlexCode source coding approach is to create a speech and audio coder that can adapt instantaneously to network and user requirements. The approach is based on a statistical description of the source, a model of perception, and analytic relations between bit rate, distortion, packet-loss rate, and the reconstruction-point distribution density of the quantizers. The method facilitates analytic optimization of the source coder for given network and input signal conditions and user requirements at any time. Preliminary results confirm that the flexibility in rate and robustness can be obtained without a loss in performance compared to state-of-the-art coders optimized for particular conditions. © Sprachkommunikation 2008 - 8. ITG-Fachtagung.

关键词： Codes (symbols)

来源：评论

学校读者我要写书评

暂无评论

The FlexCode Speech and Audio Coding Approach

The FlexCode Speech and Audio Coding Approach

引用

Informationstechnische Gesellschaft-FachtagungAachen, Germany Sprach-kommunikation

作者： Stefan Bruhn Volodya Grancharov W. Bastiaan Kleijn Janusz Klejsa Minyue Li Jan Plasberg Harald Pobloth Stephane ragot Adriana Vasilache Multimedia Technologies ACCESS Linnaeus Center Electrical Engineering KTH - Royal Institute of Technology France Telecom R&D/TECH/SSTP Nokia Research Center

The increasing heterogeneity of communication networks and the variability in user requirements form a challenge for source coding algorithms. To address this challenge, the aim of the Flex- Code source coding approach is to create a speech and audio coder that can adapt instantaneously to network and user requirements. The approach is based on a statistical description of the source, a model of perception, and analytic relations between bit rate, distortion, packet-loss rate, and the reconstruction-point distribution density of the quantizers. The method facilitates analytic optimization of the source coder for given network and input signal conditions and user requirements at any time. Preliminary results confirm that the flexibility in rate and robustness can be obtained without a loss in performance compared to state-of-the-art coders optimized for particular conditions.

关键词： Signal resolution Estimation Integrated optics

来源：评论

学校读者我要写书评

暂无评论

Exploring Influencing Factors in E-Commerce Transaction Behaviors

Exploring Influencing Factors in E-Commerce Transaction Beha...

引用

International Symposium on Electronic Commerce and Security

作者： ranzhe Jing Jianwei Yu Jiang Zuo Engineering R&D Center for Modern Enterprise Information Software Suzhou Vocational University Suzhou Jiangsu China School of Information Science and Technology Tsinghua University Beijing China Engineering R&D Center for Modern Enterprise Information Software Suzhou Vocational University Suzhou Jiangsu 215104 China

ISBN: (纸本)9780769532585

With the rapid growth of the Internet, e-commerce has been growing and expanding significantly, according to Fortune, almost all of the global top 500 companies have started online marketing; e-commerce is presently far from the mainstream of modern trade behaviors. The influencing factors in e-commerce transaction behaviors are explored in this paper. This paper takes network customers of a large e-commerce enterprise as research object; the influencing factors are integrated into three categories, respectively managerial factors, external environmental factors and internal environmental factors. And analyzes the influencing factors in the process of e-commerce transaction in terms of customer behaviors, constructs a functional process model for influencing factors in e-commerce transaction activities, integrates such factors into the model, and illustrates the functional mechanism of all the factors in e-commerce transaction. Studies on influencing factors for e-commerce transaction in the perspective of e-commerce customers will help shed light on such contradiction.

关键词： Environmental factors Business Supply chain management Marketing and sales Knowledge management Biological system modeling Electronic commerce

来源：评论

学校读者我要写书评

暂无评论

Performance evaluation of traffic reduction by source port specific multicast router

Performance evaluation of traffic reduction by source port s...

引用

Asia-Pacific Symposium on Information and Telecommunication Technologies (APSITT)

作者： Yuki Imanishi Kenya Mori Miki Yamamoto Sachiko Taniguchi Koji Sato Tetsuya Yokotani Faculty of Engineering Science Kansai University Suita-shi Osaka Japan Information Technology R&D Center Mitsubishi Corp Kamakura Kanagawa Japan

ISBN: (纸本)9784885522260

IP multicast is an effective way of dissemination of the same information to potentially large number of users. In IP multicast, a multicast IP address is used for identifying each multicast session. When large number of various contents should be disseminated, e.g. software distribution to various types of information home appliances, lots of multicast addresses are necessary. Source Port Specific Multicast (SPSM) is an effective way of saving IP multicast addresses. In SPSM, both of a source port of transport layer and an IP address in network layer is used for identification of multicast session. When SPSM routers are partially deployed, Le. SPSM routers and non-SPSM routers (IP multicast router) co-exist in a network, unnecessary traffic may be generated because non-SPSM routers cannot identify multicast sessions having the same multicast address. In this paper, we analyze this unnecessary traffic volume with various deployment scenes of SPSM routers.

关键词： IP networks routing protocols Equations Protocols Software Home appliances Mathematical model

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：