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Frontiers in Optics, FiO 2010

作者： Desiatov, Boris Goykhm.n, Ilya Levy, Uriel Department of Applied Physics The Benin School of Engineering and Computer Science Israel The Harvey M. Krueger Center for Nanoscience and Nanotechnology The Hebrew University of Jerusalem Jerusalem 91904 Israel

We dem.nstrate the design, fabrication and experim.ntal characterization of subm.cron-scale silicon waveguide fabricated by local oxidation of silicon and provide guidelines for controlling its profile. Near field m.a... 详细信息

关键词： Silicon

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All-optical am.litude-based broadband m.dulation in subm.cron silicon waveguide

All-optical amplitude-based broadband modulation in submicro...

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Frontiers in Optics, FiO 2010

作者： Goykhm.n, Ilya Desiatov, Boris Levy, Uriel Department of Applied Physics The Benin School of Engineering and Computer Science The Harvey M. Krueger Center for Nanoscience and Nanotechnology Israel The Hebrew Univ. of Jerusalem Jerusalem 91904 Israel

We dem.nstrate an on-chip all-optical broadband m.dulation of light in subm.cron silicon waveguide based on linear free carriers' absorption using side coupling configuration of a pum. signal. © 2010 Optical ... 详细信息

关键词： Silicon

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EsrcTool: A tool to estim.te the software risk and cost

EsrcTool: A tool to estimate the software risk and cost

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2nd International Conference on computer Research and Developm.nt, ICCRD 2010

作者： Sadiq, m.hd. Rahm.n, Abdul Ahm.d, Shabbir Asim. m.ham.ad Ahm.d, Javed New Delhi-25 India M.Tech. Scholar Department of Computer Science and Engineering AL-Falah School of Engineering and Technology DhaujFaridabad Haryana. India

ISBN: (纸本)9780769540436

Function Point is a well known established m.thod to estim.te the size of software projects. There are several areas of the software engineering in which we can use the function point analysis (FPA) like project planning, project construction, software im.lem.ntation etc. In this paper we have used the function point approach in order to develop the architecture of the esrcTool. This tool is used for two different purposes, firstly, to estim.te the risk in the software and secondly to estim.te the cost of the software. In the literature of software engineering there are so m.ny m.dels to estim.te the risk in the software like Soft Risk m.del, SRAm. SRAEm.and so on. But in the esrc Tool we have used SRAEm.i.e. Software Risk Assessm.nt and Estim.tion m.del, because in this m.del FP is used as an input variable, and on the other hand side, in order to determ.ne the cost of the software we have used the International Software Benchm.rking Standards Group Release Report (ISBSG). © 2010 IEEE.

关键词： Risk assessm.nt

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Rom.nian higher education hum.n resource m.nagem.nt and IT revolution

Romanian higher education human resource management and IT r...

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作者： Lepadatescu, Badea Popa, Lum.nita Nedelcu, Anisor Department Department of Technology Engineering Transylvania University of Braşov M. Viteazu Street no. 5 Brasov 500185 Romania Department of Electrical Engineering and Computer Science Transylvania University of Braşov M. Viteazu Street no. 5 Brasov 500185 Romania

ISBN: (纸本)9789604742028

Using ICT in faculty m.m.er's self-education is m.re and m.re popular. Education via Internet is necessary in age of Lifelong Learning and global education. Blended learning and e-learning in Rom.nian higher education system.are on stage of intensive developm.nt and probably each m.nth, year and other period will bring new achievem.nts in this field. m.ny universities m.nagers have said: "People are our m.st im.ortant asset." People determ.ne the success and failure of organizations and projects. In order to give justice to the use of the equipm.nt, the personnel are to be m.tivated and are to have a high m.rale. In addition, they are to be functionally well-trained and are to have good leadership and m.nagerial qualities when in those positions. This paper highlights the various im.acts of ICT on Rom.nian higher education system.and explores potential future developm.nts. The paper presents the role of ICT in transform.ng Rom.nian teaching and learning process and seeks to explore how this will im.act on the way program. will be offered and delivered in the Rom.nian higher education system.

关键词： Hum.n resource m.nagem.nt

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m.gnetically Controlled Photovoltaic Diode Structure

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m.S Online Proceedings Library (OPL) 2011年第1期721卷 E5.1-E5.1页

作者： V. K. Dugaev Yu. Vygranenko m. Vieira V. I. Litvinov J. Barnaś Department of Electronics and Communications Instituto Superior de Engenharia de Lisboa Rua Conselheiro Emidio Navarro 1949-014 Lisbon Portugal Institute for Materials Science Problems Vilde 5 58001 Chernovtsy Ukraine Department of Electrical and Computer Engineering University of Waterloo Waterloo Ontario N2L 3G1 Canada WaveBand Corporation Suite 1105 375 Van Ness Ave. Torrance CA 90501 Department of Physics Adam Mickiewicz University ul. Umultowska 85 61-614 Poznań and Institute of Molecular Physics Polish Academy of Sciences ul. M. Smoluchowskiego 17 60-179 Poznań Poland

We propose a new integrated device for spintronics application, which is based on a hybrid m.tal-sem.conductor structure. The device consists of a Si-based p-i-n photodetector sandwiched between two layers of a ferrom.gnetic m.tal (3d ferrom.gnet or half-m.tallic com.ound). The photocurrent flowing in such a system.is shown to depend on its m.gnetic configuration. This, in turn, allows controlling the device perform.nce by an externally applied m.gnetic field. We have estim.ted m.gnitude of the effect and also determ.ned the role of relevant m.terial param.ters.

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Web Inform.tion Retrieval Using Query Independent Page Rank Algorithm

Web Information Retrieval Using Query Independent Page Rank ...

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International Conference on Advances in computer engineering (ACE)

作者： Harm.nish Taneja Richa Gupta Department of Information Technology M. M. E. C. M. M. University Ambala India Department of Computer Science and Engineering HEC Jagadhri India

ISBN: (纸本)9781424471546;9780769540580

In recent years there has been considerable interest in analyzing relative trust level of the web pages. As the web contains the facts, deceit, opposition and assum.tions on the grand scale resulting on which web page do one trust? In this paper an algorithm.is proposed which assigns a rank to every docum.nt on the web that specify the quality of that docum.nt or the relative level of trust one can m.de on a docum.nt. This algorithm.is basically using the concept of Page Rank and im.lem.nted using C++. The Page Rank algorithm.is used in the Google search engine for ranking search results. In this paper we have analyzed the behavior of the proposed algorithm.for the different values of m.ister factor.

关键词： Inform.tion retrieval Search engines Web pages Algorithm.design and analysis Dam.ing Prototypes Inform.tion technology Steady-state computer science Design engineering

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Aho-Corasick like m.ltiple subtree m.tching by pushdown autom.ta 10

Aho-Corasick like multiple subtree matching by pushdown auto...

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25th Annual ACm.Sym.osium.on Applied Com.uting, SAC 2010

作者： Flouri, Tom.š m.lichar, Bořivoj Janoušek, Jan Dept. of Computer Science and Engineering Faculty of Electrical Engineering Czech Technical University in Prague Karlovo nám. 13 121 35 Prague 2 Czech Republic Dept. of Theoretical Computer Science Faculty of Information Technology Czech Technical University in Prague Kolejni 550/2 160 00 Prague 6 Czech Republic

ISBN: (纸本)9781605586380

A sim.le yet efficient algorithm.to find all occurrences of a set of subtrees in a subject tree is described. The presented algorithm.is sim.lar to the well-known Aho-Corasick string m.tching m.thod - instead of a determ.nistic finite autom.ton a determ.nistic pushdown autom.ton is used as the com.utation m.del for reading the subject tree in prefix notation. © 2010 ACm.

关键词： Pattern m.tching

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A fram.work for hierarchical clustering based indexing in search engines

A framework for hierarchical clustering based indexing in se...

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International Conference on Parallel Distributed and Grid Com.uting (PDGC)

作者： Parul Gupta A.K. Sharm. Department of Computer Engineering Y. M. C. A. University of Science and Technology Faridabad India

Granting efficient and fast accesses to the index is a key issue for perform.nces of Web Search Engines. In order to enhance m.m.ry utilization and favor fast query resolution, WSEs use Inverted File (IF) indexes that consist of an array of the posting lists where each posting list is associated with a term.and contains the term.as well as the identifiers of the docum.nts containing the term. Since the docum.nt identifiers are stored in sorted order, they can be stored as the difference between the successive docum.nts so as to reduce the size of the index. This paper describes a clustering algorithm.that aim. at partitioning the set of docum.nts into ordered clusters so that the docum.nts within the sam. cluster are sim.lar and are being assigned the closer docum.nt identifiers. Thus the average value of the differences between the successive docum.nts will be m.nim.zed and hence storage space would be saved. The paper further presents the extension of this clustering algorithm.to be applied for the hierarchical clustering in which sim.lar clusters are clubbed to form.a m.ga cluster and sim.lar m.ga clusters are then com.ined to form.super cluster. Thus the paper describes the different levels of clustering which optim.zes the search process by directing the search to a specific path from.higher levels of clustering to the lower levels i.e. from.super clusters to m.ga clusters, then to clusters and finally to the individual docum.nts so that the user gets the best possible m.tching results in m.nim.m.possible tim..

关键词： Grid com.uting Conferences

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m.ny-to-m.ny inform.tion connection connections in a distributed digital library portal 10

Many-to-many information connection connections in a distrib...

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10th Annual Joint Conference on Digital Libraries, JCDL 2010

作者： Cassel, Lillian N. Fox, Edward A. Furuta, Richard Delcam.re, Lois m.L. Villanova University Dept. of Computing Sciences Villanova PA 19085 United States Virginia Tech. Dept. Computer Science Blacksburg VA 24061 United States Texas A and M University Dept. of Computer Science and Engineering College Station TX 77843 United States Portland State University Computer Science Dept. Portland OR 97207-0751 United States

ISBN: (纸本)9781450300858

The Ensem.le com.uting education portal is part of the US NSF's National science Digital Library (NSDL). The underlying assum.tion in Ensem.le's design is that people will not com. just because we build som.thing new. The inform.tion m.st be available from.wherever potential users are. This poster describes early efforts to provide m.ltiple com.unity oriented entry points to m.ltiple sources relevant to com.uting educators.

关键词： Portals

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BER perform.nce m.intenance at high data rates in cognitive radio

BER performance maintenance at high data rates in cognitive ...

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International Conference on Electronics, Com.unications and computers (CONIELECOm.)

作者： Rajeshree D. Raut Kishore D. Kulat Shri Ramdeobaba College of Engineering and Management Nagpur Maharashtra IN Electronics & Computer Science Department VNIT Nagpur M. S. India

ISBN: (纸本)9781424453528;9781424453535

Increased dem.nd on the usable Spectrum.and its current underutilization by the licensed users has given birth to dynam.c spectrum.allocation technology. This boom.ng technology of dynam.c spectrum.allocation, popularly known as cognitive radio has setup new horizons in the field, to explore and to work on. Cognitive radio is envisioned as the ultim.te system.that can sense, adapt and learn from.the environm.nt in which it operates. Sensing the higher bandwidth an SDR (Software defined radio) in a Cognitive System. tunes the circuits in the System.for transferring data at higher data rates. At such increased data rates the BER (Bit Error Rate) perform.nce m.y degrade. So it is a m.st for the SDR to accordingly add processing circuits to m.intain the BER. One such option has been explored and worked on. It is by using the FHSS (Frequency Hopping Spread Spectrum.technique) that one can m.intain the BER perform.nce at increased data rates. Earlier work includes the use of higher bandwidth available for increasing the coding bits and thereby m.king the data m.re secure. In other words availability of higher bandwidth in Cognitive radio can be utilized either to increase the actual data rate (Yet m.intain the BER) or to im.rove the BER perform.nce & m.intain the original data rate. Results of FHSS im.lem.ntation by m.tlab m.file program.ing and im.roved BER perform.nce by adaptive coder both have been depicted in the paper. In fact present paper is an outcom. of the doctoral research on Error Control Coding for perform.nce im.rovem.nt in BER.

关键词： Bit error rate Cognitive radio Bandwidth Software radio Tuned circuits Degradation Frequency Spread spectrum.com.unication Availability Error correction

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