Results 91 to 100 of about 7,872 (156)

A 33 GHz Conformal Phased-Array Radar with Linearly Constrained Minimum Variance Digital Beamforming, Circular- Polarization Filtering, and Neural-Network Micro-Doppler Classification for Counter-UAS Applications. [PDF]

Sensors (Basel)
Baginski M.
europepmc   +1 more source

Baseline Assumptions and Future Research Areas for Urban Air Mobility Vehicles [PDF]

NASA is developing Urban Air Mobility (UAM) concepts to (1) create first-generation reference vehicles that can be used for technology, system, and market studies, and (2) hypothesize second-generation UAM aircraft to determine high-payoff technology ...
Antcliff, Kevin, Kohlman, Lee, Silva, Chris, Whiteside, Siena   +3 more
core   +1 more source

Research on Tail Rotor Load Test Flight Technology for Helicopters Based on Strain Sensor Measurement. [PDF]

Sensors (Basel)
Jiao S, Zheng J, Li K, Hu X.
europepmc   +1 more source

Preparation and Properties of Electro-Blown Spinning Erythritol-Based Coaxial Phase Change Fibers. [PDF]

Polymers (Basel)
Yang J, Chen B, Qiao Y, Ma Z, Qiao C, Wang Z, Zheng H, Bian Z, Huang N, Wei C, Liu J, Nan D.   +11 more
europepmc   +1 more source

Optimization design and research of an interior double-radial asymmetric permanent magnet and salient-pole electromagnetic hybrid excitation generator for vehicles. [PDF]

Sci Prog
Li C, Ma S, Wu Y, Gao Q, Zhang C, Bian H.   +5 more
europepmc   +1 more source

Study on viscosity and yield stress of magnetic fluid applied to low temperature magnetic fluid seal. [PDF]

Sci Rep
Liu J, Li D.
europepmc   +1 more source

Aerodynamic Analysis of Rotor Spacing and Attitude Transition in Tilt-Powered Coaxial Rotor UAV. [PDF]

Sensors (Basel)
Wu W, Tan X, Liu X, Luo A, Niu L.
europepmc   +1 more source

Microstructure and Properties of Conventional Cast Versus Annular Laser-Clad Babbitt Alloy Layers for Sliding Bearings. [PDF]

Micromachines (Basel)
Jin J, Ye J, Xue H, Xu Y, Guo Z, Zhou Z, Xu G, Wang G.   +7 more
europepmc   +1 more source

Aerodynamic Investigation on a Coaxial-Rotors Unmanned Aerial Vehicle of Bionic Chinese Parasol Seed. [PDF]

Biomimetics (Basel)
Gan W, Wang Y, Wang H, Zhuang J.
europepmc   +1 more source

Investigation on coaxial pseudo-fault characteristics induced by the outer ring defect in the single-sided axle-box bearing of wheelset in urban rail vehicles. [PDF]

Sci Rep
Zhao W, Ding J, Liao X, Liu W.
europepmc   +1 more source