1.1 GPS – benefits & constraints The Global Positioning System (GPS) is an all-weather, global, satellite-based, roundthe-clock system developed by the U.S. Department of Defense, which since the early 1980s has been available to the civilian community and has truly revolutionized navigation, surveying and geodesy. GPS is based on a constellation of up to 30 satellites orbiting the Earth, broad...

Errors in the Coordinated Universal Time (UTC) offset parameters broadcast by Global Positioning System (GPS) satellites caused many thousands of GPS-controlled clocks to be in error by approximately -13 μs on January 25-26, 2016. The erroneous UTC offset information was broadcast by 15 GPS satellites, or half of the available constellation, during the anomaly. This paper discusses the technica...

[1] We validate the temperature climatology recorded by the Microwave Sounding Unit with GPS occultation data collected by the GPS/MET experiment. We choose to validate only the lower stratospheric MSU climatology in order to circumvent the wet-dry ambiguity associated with GPS occultation in the midto lower troposphere. We simulate the lower stratospheric channel’s brightness temperature by co...

This study looked at the effect of information technology on rural medical practice. Eight GPs in rural medical practice in Victoria were interviewed, and World Wide Web sites were accessed for information relevant to the rural GPs use of information technology. The results indicated that rural GPs are developing their use of information technology according to their needs. The use of informati...

background and objective : sleep disorders are common medical problems in most of the communities. however, medical students and general practitioners (gps) do not have enough information about sleep disorders. the aim of this study was to assess the level of knowledge, attitude, and practice of gps in the field of sleep disorders in iran. materials and methods : in this cross-sectional questio...

background: continuing medical education (cme) of general practitioners (gps) regarding most of the diseases, especially psychiatric disorders, is implementing worldwide to maintain and develop their knowledge, skills, and professional performance. we investigated the effects of cme on gps knowledge in the field of psychiatric disorders in dezful university of medical sciences (dums) as a newly...

Packet scheduling methods that approximate Generalized Processor Sharing (GPS) are currently the focus of much research in the area of Quality-of-Service (QoS) networks. The ability of GPS schedulers to provide rate guarantees as well as delay guarantees meets the demand of many network applications. This paper addresses a shortcoming of GPS which has been given little attention, however, which...

Packet scheduling methods that approximate Generalized Processor Sharing (GPS) are currently the focus of much research in the area of Quality-of-Service (QoS) networks. The ability of GPS schedulers to provide rate guarantees as well as delay guarantees meets the demand of many network applications. This paper addresses a shortcoming of GPS which can have signiicant impact on the service provi...

A hybrid positioning system is merely one in which multiple systems are used for positioning purposes. This virtually always, though not necessarily, includes Global Positioning System (GPS) as it is the only global positioning network currently. Combination of mobile network and GPS positioning techniques provide a higher accuracy of mobile location than positions based on a standalone GPS or ...