نتایج جستجو برای: global system for mobile
تعداد نتایج: 11108285 فیلتر نتایج به سال:
nowadays, air pollution is a global problem that has had significant growth by technology development, population growth andindustrial development. industrial development brought natural resources deterioration, more manufacturing products, and more environmental pollutants. if pollutant won’t be controlled, human-being and wildlife will face the critical risks. significant release and critical...
The objective of this proposed paper is to present an extensive simple study about the mobile Location and the technologies that can enable them in conventional GSM networks, which do not require any significant changes to the network or the mobile device itself. A set of cell-based positioning techniques are proposed based on information available from the network and on accurate path loss mod...
due to extraordinary large amount of information and daily sharp increasing claimant for ui benefits and because of serious constraint of financial barriers, the importance of handling fraud detection in order to discover, control and predict fraudulent claims is inevitable. we use the most appropriate data mining methodology, methods, techniques and tools to extract knowledge or insights from ...
background: people who use home blood glucose monitors may use their mobile phones in the close vicinity of medical devices. this study is aimed at investigating the effect of the signal strength of 900 mhz gsm mobile phones on the accuracy of home blood glucose monitors. methods: sixty non-diabetic volunteer individuals aged 21 - 28 years participated in this study. blood samples were analyzed...
seismic retrofit strategies have been developed in the past few decades following the introduction of new seismic provisions and the availability of advanced materials and methods. it can be observed that new approaches to deal with more lateral forces are more innovative and more energy absorbent. in line with this, there is a growing trend toward the use of steel shear walls as a system with ...
In this paper, we devise data allocation algorithms that can utilize the knowledge of user moving patterns for proper allocation of shared data in a mobile computing system. By employing the data allocation algorithms devised, the occurrences of costly remote accesses can be minimized and the performance of a mobile computing system is thus improved. The data allocation algorithms for shared da...
In this paper the Topography Section of the University of Cagliari (Italy) presents the results of the research carried out on the Location Based Services. These are services which use the knowledge of a mobile device’s position (e. g. a mobile phone or PDA) in order to send to the user information and news.The research had the purpose of investigating some critical issues linked to the Locatio...
We outline in the sequel a modular indoor positioning framework. The solution consists of a ranging component, an algorithm component and a coordinator connecting the latter to the hardware. The front and back ends may be distributed among one or more systems. For the purpose of this competition our energy efficient 802.15.4 hardware is used: five fixed anchors and one or more mobile tags. Eucl...
S/A Selective Availability. Deliberate degradation of GPS signal by U.S. Department of Defense. The practice was discontinued in May 2000. GPS coordinates were expected to be accurate within 100 m with S/A turned on, and about 10 m with S/A off. DGPS improves accuracy in either case.
Existing apriori tropospheric models are not sufficiently accurate to remove tropospheric delay from GPS observations. Remaining effects of residual tropospheric delay need to be estimated to ensure high accuracy and reliability of GPS positioning. Other researchers have shown that implementations of network-based positioning techniques can adequately model the residual tropospheric delay as we...
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