Xem 1-20 trên 57 kết quả Mobile data system
  • Welcome to BlackBerry Development Fundamentals. I hope you enjoy reading this book and keep it on your bookshelf for a long time. After working for Research In Motion (RIM) and helping its customers understand their options for building custom applications for the BlackBerry platform, I knew the time was right for a book like this. Although the world is full of developers who know how to build applications for desktop, server, and even mobile platforms, many people building their first applications for BlackBerry just don’t know where to start.

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  • GSM (Global System for Mobile Communications, originally Groupe Spécial Mobile), is a standard set developed by the European Telecommunications Standards Institute (ETSI) to describe technologies for second generation (2G) digital cellular networks. Developed as a replacement for first generation (1G) analog cellular networks, the GSM standard originally described a digital, circuit switched network optimized for full duplex voice telephony.

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  • As stated in Chapter 1, Section 1.2, requirements for International Mobile Telecommunications-2000 (IMT-2000) include system flexibility, economy and conditions on data transmission speed defined in numerical terms. The minimum performance requirement in terms of transmission speed is 2 Mbit/s in an indoor environment, 384 kbit/s in a pedestrian mode and 144 kbit/s in a vehicle mode.

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  • The Information Technology Laboratory (ITL) at the National Institute of Standards and Technology (NIST) promotes the U.S. economy and public welfare by providing technical leadership for the Nation’s measurement and standards infrastructure. ITL develops tests, test methods, reference data, proof of concept implementations, and technical analyses to advance the development and productive use of information technology.

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  • Published Titles APPLIED FUNCTIONAL ANALYSIS J. Tinsley Oden and Leszek F. Demkowicz THE FINITE ELEMENT METHOD IN HEAT TRANSFER AND FLUID DYNAMICS, Second Edition J.N. Reddy and D.K. Gartling MECHANICS OF LAMINATED COMPOSITE PLATES: THEORY AND ANALYSIS J.N. Reddy PRACTICAL ANALYSIS OF COMPOSITE LAMINATES J.N. Reddy and Antonio Miravete SOLVING ORDINARY and PARTIAL BOUNDARY VALUE PROBLEMS in SCIENCE and ENGINEERING Karel Rektorys Library of Congress Cataloging-in-Publication Data Annamalai, Kalyan. Advanced thermodynamics engineering / Kalyan Annamalai & Ishwar K. Puri. p. cm.

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  • SQL Server is a comprehensive, integrated, endtoend data solution that empowers your people by providing a more secure, reliable, and productive platform for enterprise data and BI applications. SQL Server 2005 delivers powerful, familiar tools to IT professionals as well as to information workers, reducing the complexity of creating, deploying, managing, and using enterprise data and analytical applications on platforms ranging from mobile devices to enterprise data systems.

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  • Data fusion is a research area that is growing rapidly due to the fact that it provides means for combining pieces of information coming from different sources/sensors, resulting in ameliorated overall system performance (improved decision making, increased detection capabilities, diminished number of false alarms, improved reliability in various situations at hand) with respect to separate sensors/sources.

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  • As multimedia-enabled mobile devices such as smart phones and tablets are becoming the day-to-day computing device of choice for users of all ages, everyone expects that all mobile multimedia applications and services should be as smooth and as high-quality as the desktop experience. The grand challenge in delivering multimedia to mobile devices using the Internet is to ensure the quality of experience that meets the users' expectations, within reasonable costs, while supporting heterogeneous platforms and wireless network conditions. ...

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  • Spatial database management deals with the storage, indexing, and querying of data with spatial features, such as location and geometric extent. The field emerged from Geographic Information Systems (GIS) and Computer Aided Design (CAD) applications, from which it became apparent that there is a need for the efficient management of large-scale spatial data. More recently, Location Based Services (LBS) brought spatial data management needs to common users, who routinely run spatial queries on their computers or mobile devices.

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  • Migrants have various options for sending remittances: money transfer companies (Western Union, MoneyGram, etc.) or credit card companies; regular mail service; financial transfers through banks, credit unions or the various transfer options offered by companies (e.g. supermarkets or through mobile phones); informal channels such as couriers, or more sophisticated channels such as the ‘Hawala’ and ‘Hundi’ transfer systems; 16 or hand-carried by migrants themselves.

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  • Some organizations are deliberately using mobile money to enhance their traditional offerings. For example, during a recent drought in Niger, a set of randomly selected house- holds received cash transfers via mobile money (Aker et al. 2011). In comparison with physical cash, this trial found lower variable costs for senders, as well as lower costs for recipients. Over the course of the crisis, recipient households also enjoyed better diets and depleted fewer assets. Insurance, credit, and savings services are now being developed atop mature mobile money systems.

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  • The need to search for complex and recurring patterns in database sequences is shared by many applications. In this paper, we investigate the design and optimization of a query language capable of expressing and supporting efficiently the search for complex sequential patterns in database systems. Thus, we first introduce SQL-TS, an extension of SQL to express these patterns, and then we study howto optimize the queries for this language.We take the optimal text search algorithmof Knuth, Morris and Pratt, and generalize it to handle complex queries on sequences.

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  • Studies in Computational Intelligence, Volume 8 Editor-in-chief Prof. Janusz Kacprzyk Systems Research Institute Polish Academy of Sciences ul. Newelska 6 01-447 Warsaw Poland E-mail: kacprzyk@ibspan.waw.pl Further volumes of this series can be found on our homepage: springeronline.com Vol. 1. Tetsuya Hoya Artificial Mind System – Kernel Memory Approach, 2005 ISBN 3-540-26072-2 Vol. 2. Saman K. Halgamuge, Lipo Wang (Eds.) Computational Intelligence for Modelling and Prediction, 2005 ISBN 3-540-26071-4 ˙ Vol. 3.

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  • Broadband Wireless Mobile (3G and 4G) will be the next key developments in wireless communications. Immense interest has been fuelled by large demand for high frequency utilisation as well as a large number of users requiring simultaneous multidimensional high data rate access for the applications of wireless mobile internet and e-commerce. Broadband wireless mobile extends the corporate LAN to common areas such as meeting rooms and enables in-building public wireless hotspots such as airport lounges to provide wireless portable computer connectivity...

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  • Database Systems: Lecture 13 - Emerging Research Directions in DBs/ISs provides about Mobile Databases, Multimedia Databases, Geographic Information Systems, Bioinformatics, XML, Data Mining, Data Warehousing, Introduction to ASIS Lab.

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  • This chapter covers advanced data types and new applications, including temporal datababases, spatial and geographic databases, multimedia databases, and mobility and personal databases. This chapter is suited as a means to lay the groundwork for an advanced course. Some of the material, such as temporal and spatial data types, may be suitable for self-study in a first course.

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  • Chapter 25 - Advanced data types and new applications. This chapter covers advanced data types and new applications, including temporal datababases, spatial and geographic databases, multimedia databases, and mobility and personal databases. This chapter is suited as a means to lay the groundwork for an advanced course. Some of the material, such as temporal and spatial data types, may be suitable for self-study in a first course.

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  • GSM

    GSM (Global System for Mobile Communications), is a standard set developed by the European Telecommunications Standards Institute (ETSI) to describe technologies for second generation digital cellular networks. Developed as a replacement for first generation analog cellular networks, the GSM standard originally described a digital, circuit switched network optimized for full duplex voice telephony. The standard was expanded over time to include first circuit switched data transport, then packet data transport via GPRS (General Packet Radio Services)....

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  • The new digital radio system DAB (Digital Audio Broadcasting, nowadays often called Digital Radio) is a very innovative and universal multimedia broadcast system which will replace the existing AM and FM audio broadcast services in many parts of the world in the future. It was developed in the 1990s by the Eureka 147/DAB project. DAB is very well suited for mobile reception and provides very high robustness against multipath reception. It allows use of single frequency networks (SFNs) for high frequency efficiency....

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  • Generation Change in Cellular Systems In Japan, mobile communications systems based on cellular technology have evolved, as illustrated in Figure 1.1. The first-generation analog car phones were first introduced in 1979, followed by the commercialization of the second-generation digital phones in 1993. Mobile phone subscribers have rapidly increased in number since then, owing to the liberation of terminal sales and continuous price reductions. In March 2000, the number of mobile phone subscribers outnumbered those of fixed telephones.

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