Zobrazeno 1 - 10
of 1 172
pro vyhledávání: '"Quadrant (plane geometry)"'
Publikováno v:
Alexandria Engineering Journal, Vol 61, Iss 8, Pp 5903-5917 (2022)
In this paper, a new optimized quadrant pyramid antenna array (O-QPAA) structure is proposed for back lobe minimization of planar antenna arrays (PAA). Based on the PAA size, it is thought to be formed of a number of concentric co-planar squared ante
Publikováno v:
IEICE Transactions on Communications. :580-587
Publikováno v:
IEEE Journal of Emerging and Selected Topics in Power Electronics. 10:2362-2379
Publikováno v:
IEEE Communications Letters. 25:3908-3912
A ground-to-air free-space optical link is studied for a hovering unmanned aerial vehicle (UAV) having multiple rotors. For this UAV, a four-quadrant array of photodetectors is used at the optical receiver to alleviate the adverse effect of hovering
Autor:
Jesse Zhu, Zeneng Sun
Publikováno v:
Powder Technology. 394:424-438
Previous flow regime mapping work in both gas-solids (GS) and liquid-solids (LS) fluidization systems were carefully reviewed. A set of complete four-quadrant flow regime maps that unifies all the operating modes in both the GS and LS fluidization sy
Publikováno v:
IEEE Journal of Emerging and Selected Topics in Power Electronics. 9:6545-6560
This paper discusses the use of soft switching techniques in isolated and non-isolated converters, showing that the new range of grid connected applications require higher performance power conversion than traditional voltage source converters can pr
Publikováno v:
Chinese Journal of Aeronautics. 34:171-176
Conventional semi-active laser guidance takes advantage of the laser designator to illuminate the stable and uniform laser spot on target precisely. The seeker collects the reflected light by a quadrant detector and outputs the relative position info
Autor:
Peter Grandits
Publikováno v:
Journal of Differential Equations. 303:183-213
We show an Alexandrov-Bakelman-Pucci (ABP) estimate for a PDE with anisotropic Laplacian in two dimensions in unbounded domains, where the drift vector varies in a segment of the positive quadrant. The unbounded domains are assumed to be bounded belo
Publikováno v:
IEEE Photonics Technology Letters. 33:1254-1257
The quadrant detector (QD), has developed into a core detector in the free space optical communication system. The light power received by the detector surface will be very weak after long distance transmission of laser, it brings great challenges to
Publikováno v:
ACS Photonics. 8:3162-3172
Optical tweezers are a powerful tool for exploring physical properties of particles in various environments through analysis of their dynamics in a trapping potential. Analysis of the trapped parti...