检索结果-内蒙古大学图书馆

2013 International Conference on MEMS and Mechanics(MEMSM 2013)

作者： Monica R Mundada Nishanth Thimmegowda T Bhuvaneswari V CyrilRaj Dr M G R University Dept of Computer Science & Engineering MSRIT Dept of computer Application L N Govt College Dept of CSE and IT Dr M G R University

Conservation of the energy available in each sensor node and increasing network lifetime are most important design issues for a wireless sensor network（WSN）. Many routing algorithms have been developed in this regard. Out of all these, clustering algorithms have gained a lot of importance in increasing the network lifetime thereby the efficiency of the nodes in it. Clustering provides an effective way for prolonging the lifetime of WSN. This paper elaborately compares the two renowned routing protocols namely, LEACH and EAMMH supported by simulations scenarios, and analysis of the results against known metrics with energy and network lifetime being major among them.

关键词： Wireless Sensor Networks Increasing Network Lifetime LEACH EAMMH Energy Efficient Multi Path Multi Hop Dead Node Clustering

来源：评论

学校读者我要写书评

暂无评论

The Adaptive Multicast Data Origin Authentication Protocol

The Adaptive Multicast Data Origin Authentication Protocol

引用

第二届中国互联网学术年会

作者： Liehuang Zhu Hao Yang Zhenghe Yang Beijing Engineering Research Center of Massive Language Information Processing and Cloud Computing Application School of Computer Science and Technology Beijing Institute of Technology China Beijing

Most multicast data origin authentication schemes work under the fixed parameters without taking the problem of changeable network environment into ***,the network conditions will obviously influence the efficiency of a protocol such as the time delay and the overhead considering the packet loss rate or something *** adjusting the parameters adaptively to achieve the ideal state with the dynamic network is *** achieve a high authentication rate and adapt to the changeable and unstable network environment,we proposed a multicast data origin authentication protocol which is adaptive depending on the packet error rates as well as the time delay,and is robust against the packet loss and *** model can estimate a more appropriate packet error rate and make the time delay lower according to the feedback values got from the receivers using the Markov chain so that it can be ***’s more,the IDA (Information Dispersal Algorithm) and the Merkle HASH tree are also combined to resist the packet loss or *** strategy is especially efficient in terms of not only the adaptation of dynamic network but also the shortcut of overhead and delay,because the reliable intelligent algorithm is included in and only the necessary parts are involved in to authenticate.

关键词： Authentication adaptive estimate packet error rate time delay Markov chain

来源：评论

学校读者我要写书评

暂无评论

Research on Encryption Model Based on AES and ECC in RFID

Research on Encryption Model Based on AES and ECC in RFID

引用

International Conference on computer sciences and applications (CSA)

作者： Yiran Lin Kaige Kang Yue Shi Department of Computer Science Southern Polytechnic State University Marietta Georgia United State Department of Software Engineering China University of Mining and Technology Beijing China Department of Computer Science and Application China University of Mining and Technolog Beijing China

Since the cost of RFID tags reducing constantly, the scale of its applications enlarges in industries and extends to various fields in our daily work and life. However, due to the openness of RFID, it owns a high attack risk when applied. This paper presents a model based on AES and ECC, which can protect users' privacy and implement access controls. This model takes advantage of both the virtues of a symmetric encryption algorithm and asymmetric encryption algorithm, encrypting AES key with ECC and empowering the client to encrypt system's ECC public key by using an ECC private key.

关键词： Encryption Elliptic curve cryptography Radiofrequency identification Ciphers Elliptic curves

来源：评论

学校读者我要写书评

暂无评论

Effect on generalization of using relational information in list-wise algorithms

Effect on generalization of using relational information in ...

引用

Joint International Conference on Pervasive Computing and the Networked World, ICPCA/SWS 2012

作者： Chen, Guohua Tang, Yong Tang, Feiyi Ding, Shijin He, Chaobo School of Mathematical Sciences Souch China Normal University Guangzhou 510631 Guangdong China Shenzhen Engineering Laboratory for Mobile Internet Application Middleware Technology Shenzhen 518060 Guangdong China School of Computer Science Souch China Normal University Guangzhou 510631 Guangdong China School of Computing and Information Systems Univerisity of Melbourne VIC 3010 Australia

ISBN: (纸本)9783642370144

Learning to rank became a hot research topic in recent years and utilizing relational information in list-wise algorithms was discovered to be valuable and was widely adopted in various algorithms. These algorithms' empirical performances were usually given, but few of them conduct theoretical analysis on the generalization bound. Based on the theory of Rademacher Average, we derive the generalization bound of ranking relational objects algorithms and discuss the effect on the generalization bound of using this method. Especially, an interesting property of ranking relational objects algorithms for Topic Distillation was discovered: the generalization bound does not depend on the size of documents in each query in training set. Experiments are conducted to verify this property. © 2013 Springer-Verlag.

关键词： Distillation

来源：评论

学校读者我要写书评

暂无评论

Sol-gel synthesis of Sc2O3 doped W nano-particle for cathode application

Sol-gel synthesis of Sc2O3 doped W nano-particle for cathode...

引用

International Conference on Vacuum Electronics

作者： R. K. Barik A. Bera A. K. Tanwar I. K. Baek K. Eom M. A. Sattorov S. H. Min O. J. Kwon G-S. Park School of Electrical Engineering and Computer Science Seoul National University South Korea Department of Physics and Astronomy Seoul National University South Korea School of Electrical Engineering and Computer Science Department of Physics and Astronomy Center for THz-Bio Application Systems Seoul National University South Korea

Sc 2 O 3 doped W nano-powder is believed to play a dominant role for improving emission capabilities of the high current density thermionic cathodes. In this study a novel nano-particle synthesis approach was adopted in order to precisely control the particle parameters. The particle characteristics and sintering behavior has been analyzed using SEM, TEM, EDS, XRD and XPS. Uniform grain size with average particle diameter~50 nm, spherical morphology, uniform phase and homogeneous mixing of Sc 2 O 3 doped W nano-powder was obtain which will enhance the emission current density, emission uniformity and life of the cathode.

关键词： Cathodes Tungsten Current density Powders Educational institutions X-ray scattering Morphology

来源：评论

学校读者我要写书评

暂无评论

Revealing the intracellular ultrastructure of filopodia with cryo-electron tomography

引用

Microscopy (Oxford, England) 2014年第SUPPL_1期63 Suppl 1卷 i33-i34页

作者： Shinji Aramaki Kota Mayanagi Kazuhiro Aoyama Takuo Yasunaga Dept. of Bioscience and Bioinformatics Faculty of Computer Science and Computer Science and Systems Engineering Kyushu Institute of Technology 680-4 Kawazu Iizuka Fukuoka Japan Research Fellow (DC2) of the Japan Society for the Promotion of Science. Medical Institute of Bioregulation Kyushu University 3-1-1 Maidashi Higashi-ku Fukuoka Japan. Institute for Protein Research Osaka Universit 2-2 Yamadagaoka Suita-shi Osaka JAPAN Application laboratory FEI Japan 2-13-34 Minato-Minami Minato-ku Tokyo Japan. Dept. of Bioscience and Bioinformatics Faculty of Computer Science and Computer Science and Systems Engineering Kyushu Institute of Technology 680-4 Kawazu Iizuka Fukuoka Japan Sentan Jst.

来源：评论

学校读者我要写书评

暂无评论

An extended composite nonlinear state feedback control approach for mimo linear systems with actuator saturation

引用

ICIC Express Letters 2013年第3 B期7卷 1145-1149页

作者： Peng, Wendong Yin, Jibin Liu, Tao Cao, Chunyao Shanghai Hongjian Intelligent Science and Technology Co. Ltd. No. 333 Weining Road Changning District Shanghai 200336 China Department of Mechanical Engineering Kunming University of Science and Technology No. 68 Wenchang Road 12.1 Street Kunming 650093 China Computer Technology Application Key Lab of Yunnan Province Kunming University of Science and Technology No. 68 Wenchang Road 12.1 Street Kunming 650093 China Department of Intelligent Mechanical Systems Engineering Kochi University of Technology 185 Miyanokuchi Tosayamada-Cho Kami-City Kochi 782-8502 Japan Jiaxing Planning and Research Institute Co. Ltd. No. 318 Zhonghuan South Road Jiaxing 314001 China

In this paper, a new design method of extended composite nonlinear feedback control is presented to solve the tracking control of time-varying trajectory for MIMO linear systems with saturation nonlinearity. Enlightened by the initial composite nonlinear feedback technique, the extended control approach is established by a linear feedback law with an additional feedforward term and a nonlinear feedback law. It is a nonlinear design method that yields a varying damping ratio, which can allow fast response and almost no overshoot for tracking control. The stability guaranteed on an ellipsoid contained in the domain of attraction is rigorously demonstrated in the presence of saturation. The simulation results show that the closed-loop system has the fast rising time and almost no overshoot and behaves a perfect dynamic performance. © 2013 ICIC International.

关键词： Feedback control

来源：评论

学校读者我要写书评

暂无评论

Exploring genomes with a game engine

Exploring genomes with a game engine

引用

IEEE International Conference on Bioinformatics and Biomedicine (BIBM)

作者： Jeremiah J. Shepherd Lingxi Zhou Yan Zhang Jim Zheng Jijun Tang School of Computer Science and Engineering University of South Caraolina Columbia South Carolina School of Biomedical Informatics The University of Texas Health Science Center at Houston Houston Texas Tianjin Key Laboratory of Cognitive Computing and Application Tianjin University Tianjin China

Studying genomes continues to be beneficial for evolutionary discover, and prognosticating/diagnosing many genetic disorders and diseases. Most of the these studies have used systems that view the DNA in a linear structure, but having this information is only a small part of fully understanding what they can reveal. Visualizing genomes in real time 3D can give researchers more insight, but this is fraught with hardware limitations. Each element contains vast amounts of information that cannot be processed at once. However, by using a game engine and sophisticated video game visualization techniques, we were able to construct a multi-platform real-time 3D genome viewer.

关键词： Genomics Games Engines Biological cells Octrees Three-dimensional displays Data visualization

来源：评论

学校读者我要写书评

暂无评论

Detection of weak stochastic forces in a parametrically stabilized micro-optomechanical system

引用

Physical Review A 2014年第2期89卷 023848-023848页

作者： A. Pontin M. Bonaldi A. Borrielli F. S. Cataliotti F. Marino G. A. Prodi E. Serra F. Marin Istituto Nazionale di Fisica Nucleare (INFN) Trento Institute for Fundamental Physics and Application I-38123 Povo Trento Italy Dipartimento di Fisica Università di Trento I-38123 Povo Trento Italy Institute of Materials for Electronics and Magnetism Nanoscience-Trento-FBK Division 38123 Povo Trento Italy Dipartimento di Fisica e Astronomia Università di Firenze Via Sansone 1 I-50019 Sesto Fiorentino (FI) Italy European Laboratory for Non-Linear Spectroscopy (LENS) Via Carrara 1 I-50019 Sesto Fiorentino (FI) Italy INFN Sezione di Firenze 50019 Sesto Fiorentino (FI) Italy CNR-INO L.go Enrico Fermi 6 I-50125 Firenze Italy Department of Microelectronics and Computer Engineering/ECTM/DIMES Delft University of Technology Feldmanweg 17 2628 CT Delft The Netherlands Interdisciplinary Laboratory for Computational Science (LISC) FBK-University of Trento I-38123 Povo (TN) Italy

Measuring a weak force is an important task for micromechanical systems, both when using devices as sensitive detectors and, particularly, in experiments of quantum mechanics. The optimal strategy for resolving a weak stochastic signal force on a huge background (typically given by thermal noise) is a crucial and debated topic, and the stability of the mechanical resonance is a further, related critical issue. We introduce and analyze the parametric control of the optical spring, which allows us to stabilize the resonance and provides a phase reference for the oscillator motion, yet conserving a free evolution in one quadrature of the phase space. We also study quantitatively the characteristics of our micro-optomechanical system as detector of stochastic force for short measurement times (for quick, high-resolution monitoring) as well as for the longer-term observations that optimize the sensitivity. We compare a simple strategy based on the evaluation of the variance of the displacement which is a widely used technique) with an optimal Wiener-Kolmogorov data analysis. We show that, due to the parametric stabilization of the effective susceptibility, we can more efficiently implement Wiener filtering, and we investigate how this strategy improves the performance of our system. We finally demonstrate the possibility to resolve stochastic force variations well below 1% of the thermal noise.

关键词： OPTOMECHANICS STOCHASTIC processes WEAK interactions (Nuclear physics) MICROELECTROMECHANICAL systems FORCE & energy QUANTUM mechanics

来源：评论

学校读者我要写书评

暂无评论

An investigation of north-south asynchrony of solar filament activity: Wavelet transform analyses

An investigation of north-south asynchrony of solar filament...

引用

International Conference on Information science and Technology (ICIST)

作者： Lan Yu Linhua Deng Song Feng Department of Information Engineering Yunnan Land and Resources Vocation College Kunming Yunnan PRC Graduate University of Chinese Academy of Sciences Beijing PRC Computer Technology Application Key Lab of Yunnan Province Kunming University of Science and Technology Chenggong Yunnan PRC

ISBN: (纸本)9781467327626

Monthly counts of filament numbers in the time interval of 1954 April to 2010 June are proposed to determine their phase asynchrony between the solar northern and southern hemispheres by using advanced wavelet transforms. Both the cross-wavelet transform and wavelet coherence analyses show asynchronous behaviour with strong phase mixing in the high-frequency components of hemispheric flare activity, and strong synchronous behaviour with coherent phase angles in the low-frequency components, corresponding to the period-scales around the 11-year Schwabe cycle. This study shows that the wavelet transforms techniques for the hemispheric phase analysis of solar time series is fairly useful.

关键词： Wavelet transforms Coherence Time series analysis Wavelet analysis Astrophysics

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：