Results 1 to 10 of about 639,736 (293)
Mine personnel positioning accuracy verification system based on Hall sensing
Gong-kuang zidonghua, 2019 In view of problems of low automation degree and high time and labor cost of static test method of mine personnel positioning accuracy, a mine personnel positioning accuracy verification system based on Hall sensing was proposed.
YE Guoqing +4 more
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Global positioning accuracy improves
Eos, Transactions American Geophysical Union, 1994 Racal Positioning Systems Ltd. is now incorporating Ashtech's newest and most accurate Global Positioning System (GPS) receivers in its DeltaFix short‐range (SR) differential GPS systems.The differential system offers users precise positioning—at ranges depending on local radio propagation conditions—up to 60 km from a shore‐based reference station ...
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Meitan kexue jishuMonorail cranes are crucial auxiliary transportation equipment in underground coal mines, currently advancing towards intelligent and unmanned operation.
Yuhan LYU +5 more
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Utilization CSRS-PPP software for recovery aircraft’s position [PDF]
Scientific Journal of Silesian University of Technology. Series Transport, 2015 The PPP method is applied in aeronautical navigation as a new technique for determination of aircraft’s position. In this paper preliminary results of recovery aircraft’s position were presented.
Kamil KRASUSKI
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Applied Sciences, 2016 To test the positioning accuracy and repeatability of the linear axes of machine tools, ISO (International Standards Organization) 230-2 and ISO 230-6 are usually adopted.
Hau-Wei Lee +4 more
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ASSESSING HORIZONTAL POSITIONAL ACCURACY OF
Geodesy and cartography, 2017 The horizontal positional accuracy of Google Earth is assessed in the city of Montreal, Canada, using the precise coordinates of ten GPS points spatially distributed all over the city. The results show that the positional accuracy varies in the study area between ∼0.1 m in the south to ∼2.7 m in the north.
Mohammad Ali GOUDARZI, René Jr. LANDRY
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Сельскохозяйственные машины и технологии, 2017 One of the directions of increase in fertilizers efficiency is reduction of nonuniformity of their distribution across the field. Quality of fertilizer application decreases in particular because of diagram joining violation when distributions at ...
G. I. Lichman +3 more
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Error Analysis of Non-Time-Synchronized Lightning Positioning Method
Remote SensingSince the non-time-synchronized lightning positioning method does not rely on the time synchronization of the stations in the positioning system, it eliminates the errors arising from the pursuit of time synchronization and potentially achieves higher ...
Yanhui Wang +4 more
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Открытое образование (Москва), 2019 Purpose of research. The aim of the study is to develop a system for the analysis and evaluation of positioning errors manipulators precision industrial robots used in the production of microelectronic equipment.
N. V. Norkina, F. A. Mevis
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Positional accuracy of four die tray systems
The Journal of Prosthetic Dentistry, 1991 This study evaluated the positional accuracy of dies with four die tray systems. The die trays were: (1) Accu*trac Precision die system, (2) Model-Tray system, (3) Sterdo Split model tray, and (4) Tricodent One*Cast die tray system. Positional change of the dies was measured by using an Olympus binocular scanning tunneling microscope (STM).
Medical College of Georgia, School of Dentistry, Augusta, Ga., U.S.A. ( host institution ) +4 more
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