Results 91 to 100 of about 1,285,259 (263)

Security of GPS/INS based On-road Location Tracking Systems

open access: yes, 2018
Location information is critical to a wide-variety of navigation and tracking applications. Today, GPS is the de-facto outdoor localization system but has been shown to be vulnerable to signal spoofing attacks.
Narain, Sashank   +2 more
core   +1 more source

Opening Wedge High Tibial Osteotomy Using Combined Computed Tomography-Based and Image-Free Navigation System

open access: yesArthroscopy Techniques, 2017
For opening wedge high tibial osteotomy (OWHTO), it is recommended that the osteotomy line is parallel to the medial tibial posterior slope (TPS) in the sagittal view and that the alignments are simultaneously controlled in the coronal and sagittal views.
Yasushi Akamatsu, M.D.   +4 more
doaj  

Systems analysis for ground-based optical navigation [PDF]

open access: yes
Deep-space telecommunications systems will eventually operate at visible or near-infrared regions to provide increased information return from interplanetary spacecraft.
Null, G. W.   +2 more
core   +1 more source

Galileo early cruise, including Venus, first Earth, and Gaspra encounters [PDF]

open access: yes, 1992
This article documents Deep Space Network (DSN) support for the Galileo cruise to Jupiter. The unique trajectory affords multiple encounters during this cruise phase.
Beyer, P. E.   +2 more
core   +1 more source

PC-based aviation training devices (PCATDs): research, development and certification [PDF]

open access: yes, 2011
This paper examines the development of two PCATD’s (one helicopter, one fixed-wing) and their eventual certification by CAA. Certification has demonstrated the potential these devices have for aviation training in New Zealand.
Gilbey, Andrew   +3 more
core  

Kinematics During Total Knee Arthroplasty Using the Navigation System ∼Mobile Bearing CR vs. Fixed Bearing CR∼ [PDF]

open access: hybrid, 2023
Marcelo Kubota Brazil   +3 more
openalex   +1 more source

Brain connectivity during encoding and retrieval of spatial information: individual differences in navigation skills

open access: yesBrain Informatics, 2017
Emerging evidence suggests that the variations in the ability to navigate through any real or virtual environment are accompanied by distinct underlying cortical activations in multiple regions of the brain. These activations may appear due to the use of
Greeshma Sharma   +4 more
doaj   +1 more source

‘Fixed-axis’ magnetic orientation by an amphibian: non-shoreward-directed compass orientation, misdirected homing or positioning a magnetite-based map detector in a consistent alignment relative to the magnetic field? [PDF]

open access: yes, 2002
Experiments were carried out to investigate the earlier prediction that prolonged exposure to long-wavelength (>500 nm) light would eliminate homing orientation by male Eastern red-spotted newts Notophthalmus viridescens.
Borland, S. Chris   +4 more
core  

Routing Unmanned Vehicles in GPS-Denied Environments

open access: yes, 2017
Most of the routing algorithms for unmanned vehicles, that arise in data gathering and monitoring applications in the literature, rely on the Global Positioning System (GPS) information for localization.
Misra, Sohum   +3 more
core   +1 more source

Mid-term results of cementless total hip replacement using a ceramic-on-ceramic bearing with and without computer navigation [PDF]

open access: bronze, 2007
Nobuhiko Sugano   +5 more
openalex   +1 more source

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