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Mostrando 1 - 20 Resultados de 1,446 Para Buscar '"Global Positioning System"', tiempo de consulta: 3.77s Limitar resultados
  1. 1
    por Logsdon, Tom
    Publicado 1992
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    The Navstar global positioning system
  2. 2
    por Ashby, Neil
    Publicado 2003
    “…The Global Positioning System (GPS) uses accurate, stable atomic clocks in satellites and on the ground to provide world-wide position and time determination. …”
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    Online Artículo Texto
    Relativity in the Global Positioning System
  3. 3
    “…The project of writing a Global Positioning System (GPS) book was con­ ceived in April 1988 at a GPS meeting in Darmstadt, Germany. …”
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    Global positioning system: theory and practice
  4. 4
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    Global positioning systems, inertial navigation, and integration
  5. 5
    por Strobel, Jürgen
    Publicado 1995
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    GPS: global positioning system: Technik und Anwendung der Satellitennavigation
  6. 6
    “…This study focuses on the design of a wearable global positioning system (GPS) data logger for the purpose of objectively measuring the temporal and spatial features of human activities. …”
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    Development of a wearable global positioning system for place and health research
  7. 7
    por Maddison, Ralph, Ni Mhurchu, Cliona
    Publicado 2009
    “…Accurate measurement of physical activity is a pre-requisite to monitor population physical activity levels and design effective interventions. Global Positioning System (GPS) technology offers potential to improve the measurement of physical activity. …”
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    Global positioning system: a new opportunity in physical activity measurement
  8. 8
    “…The system consists of two components: a global positioning system (GPS)-based stimulator with dimensions of 38 mm × 26 mm × 8 mm and a weight of 18 g that can easily be carried by a pigeon as a backpack and a PC-based program developed in Virtual C++. …”
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    Online Artículo Texto
    Global Positioning System-Based Stimulation for Robo-Pigeons in Open Space
  9. 9
    “…Due to the poor dynamic positioning precision of the Global Positioning System (GPS), Time Series Analysis (TSA) and Kalman filter technology are used to construct the positioning error of GPS. …”
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    Research on the Error of Global Positioning System Based on Time Series Analysis
  10. 10
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    Sunlight Intensity Based Global Positioning System for Near-Surface Underwater Sensors
  11. 11
    “…BACKGROUND: Detailed spatial location information is important in accurately estimating personal exposure to air pollution. Global Position System (GPS) has been widely used in tracking personal paths and activities. …”
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    Online Artículo Texto
    Refining Time-Activity Classification of Human Subjects Using the Global Positioning System
  12. 12
    “…This study aimed to characterize the grazing activity and protein–energy requirements of grazing dairy goats in a Mediterranean woodland in northern Morocco by combining two sensors, the Global Positioning System (GPS) and three axis accelerometers. …”
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    Estimation of Grazing Activity of Dairy Goats Using Accelerometers and Global Positioning System
  13. 13
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    Guidodontics: A global positioning system (GPS) to surgical Endodontics – A case series
  14. 14
    “…BACKGROUND: Air pollution epidemiological studies are increasingly using global positioning system (GPS) to collect time-location data because they offer continuous tracking, high temporal resolution, and minimum reporting burden for participants. …”
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    Automated time activity classification based on global positioning system (GPS) tracking data
  15. 15
    “…OBJECTIVES: Despite increasing availability of global positioning system (GPS), no research has been conducted to analyze GPS data for exposure opportunities associated with time at indoor and outdoor microenvironments. …”
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    Online Artículo Texto
    Development of Time-location Weighted Spatial Measures Using Global Positioning System Data
  16. 16
    “…Particularly, data on the spatial context of physical activity is limited, which limits the potential to design location-based interventions effectively. Using global positioning system (GPS) and accelerometry, this study aimed to identify locations where children engage in moderate-vigorous physical activity (MVPA). …”
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    Localization of Physical Activity in Primary School Children Using Accelerometry and Global Positioning System
  17. 17
    “…This study uses accelerometery and global positioning system technologies to identify the charactieristics of environments being used for bouts of continuous moderate to vigorous physical activity (MVPA) in a sample of English schoolchildren. …”
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    Environmental supportiveness for physical activity in English schoolchildren: a study using Global Positioning Systems
  18. 18
    “…Here, we describe a comprehensive biological Global Positioning System (bGPS) to track transplanted stem cells. …”
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    A Biological Global Positioning System: Considerations for Tracking Stem Cell Behaviors in the Whole Body
  19. 19
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    Global positioning system technology (GPS) for psychological research: a test of convergent and nomological validity
  20. 20
    “…Global positioning system navigation relies on precision timing signals furnished by atomic clocks. …”
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    Search for domain wall dark matter with atomic clocks on board global positioning system satellites
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