Results 21 to 30 of about 3,280,097 (317)

Calibration of Fixed-Wing UAV Aerodynamic Coefficients with Photogrammetry for VDM-based Navigation

, 2021
Autonomous navigation is a crucial aspect for fixed-wing unmanned aerial vehicle operation when encountering disturbance or denial of GNSS signal reception.
Skaloud, Jan, Laupré, Gabriel François, Jan Skaloud, Gabriel Laupré   +3 more
core   +1 more source

Vehicle Navigation Service Based on Real-Time Traffic Information [PDF]

, 2012
GNSS-assisted vehicle navigation services are nowadays very common in most of the developed countries. However, most of those services are either delivered through proprietary technologies, or fall short in flexibility because of the limited capability ...
Corbi, C., Giorgio Ghinamo, Bettassa Copet, Piergiuseppe, Risso, Fulvio Giovanni Ottavio, Ghinamo G., Fulvio Risso, Piergiuseppe Bettassa, Riccardo Sisto, Vadalà F., Cecilia Corbi, Sisto, Riccardo, Vadalà, F., Francesco Vadala, Ghinamo, G., Corbi C.   +14 more
core   +1 more source

A New Time–Frequency Feature Extraction Method for Action Detection on Artificial Knee by Fractional Fourier Transform

Micromachines, 2019
With the aim of designing an action detection method on artificial knee, a new time−frequency feature extraction method was proposed. The inertial data were extracted periodically using the microelectromechanical systems (MEMS) inertial measurement
Tianrun Wang, Ning Liu, Zhong Su, Chao Li   +3 more
doaj   +1 more source

Investigation of the factors affecting the self‐propelled force in a multi‐orifice nozzle using a novel simulation method

Energy Science & Engineering, 2020
A multi‐orifice nozzle is the primary actuator of radial jet drilling for the stimulation of unconventional and low‐permeability reservoirs. This research developed a 3D flow field simulation model to investigate the self‐propelled force of a multi ...
Yumei Li, Tao Zhang
doaj   +1 more source

Towards Operational Systems for Continuous Navigation of Rescue Teams [PDF]

, 2008
Self-protection is of rescue teams has absolute priority over all other objectives. Nevertheless rescue workers, such as fire fighters often face conditions that impose a combination of threats on them: severe physical and mental stress, limited or no ...
Mohammed Khider, Khider, Mohammed, Patrick Robertson, Robertson, Patrick, Michael Angermann, Angermann, Michael   +5 more
core   +1 more source

Indirect assessment of web navigation success [PDF]

, 2005
Despite much research on hypertext and web navigation, relatively little is known about the relationship between web navigation strategies and success.
Ian Spence, Gwizdka, Jacek, Spence, Ian, Jacek Gwizdka   +3 more
core   +1 more source

An Enhanced Dual-Stream Network Using Multi-Source Remote Sensing Imagery for Water Body Segmentation

Applied Sciences, 2023
Accurate surface water mapping is crucial for rationalizing water resource utilization and maintaining ecosystem sustainability. However, the diverse shapes and scales of water bodies pose challenges in automatically extracting them from remote sensing ...
Xiaoyong Zhang, Miaomiao Geng, Xuan Yang, Cong Li   +3 more
doaj   +1 more source

DynNav: Toward Open and Interoperable Dynamic Navigation Services [PDF]

, 2016
So far, navigation devices, including navigation apps for smartphones, have been proprietary and closed. A new scenario is emerging with the Open Mobile Alliance Dynamic Navigation Enabler, which lets developers create novel navigation services ...
Sisto, Riccardo, Corbi, C., Leggero, P., Risso, Fulvio Giovanni Ottavio, Vadalà, F., Ghinamo, G., Bettassa Copet, P.   +6 more
core   +1 more source

Simulation on compound percussive drilling: Estimation based on multidimensional impact cutting with a single cutter

Energy Reports, 2021
In the present study, a 3D FEM of compound percussive system considering a loading–unloading cycle was employed to simulate the dynamic single-cutter-rock interaction.
Yumei Li, Tao Zhang, Zefang Tian, Yiming Zheng, Zengmin Yang   +4 more
doaj   +1 more source

Dynamic Electromagnetic Navigation

IEEE Robotics and Automation Letters
Magnetic navigation offers wireless control over magnetic objects, which has important medical applications, such as targeted drug delivery and minimally invasive surgery. Magnetic navigation systems are categorized into systems using permanent magnets and systems based on electromagnets.
Jasan Zughaibi, Bradley J. Nelson, Michael Muehlebach   +2 more
openaire   +4 more sources