Results 101 to 110 of about 14,611,742 (406)
Hybrid Precoding Based on Monopulse Ratio for Millimeter Wave Systems With Limited Feedback
IEEE Access, 2020 Multiuser hybrid precoding in 5G NR mmWave communication system faces significant challenges such as establishing accurate directional radio links and maintaining links for mobile stations (MSs) moving in outdoor environments.
Hoil Kim +2 more
doaj +1 more source
Measurement Error Effects of Beam Parameters Determined by Beam Profiles [PDF]
arXiv, 2015 A conventional method to determine beam parameters is using the profile measurements and converting them into the values of twiss parameters and beam emittance at a specified position. The beam information can be used to improve transverse beam matching between two different beam lines or accelerating structures.
arxiv
, 2017 Screening is an indispensable unit process for separation of materials. Large vibrating screen is extensively used in coal processing because of its large production capacity.
Zhenqian Wang +5 more
semanticscholar +1 more source
Sequentially deployable maneuverable tetrahedral beam [PDF]
, 1985 A tetrahedral beam that can be compactly stowed, sequentially deployed, and widely manipulated to provide a structurally sound yet highly maneuverable truss structure is comprised of a number of repeating units of tandem tetralhedral sharing common sides.
Crawford, R. F., Mikulas, M. M., Jr.
core +1 more source
A novel green antenna phase-shift system with data acquisition boards [PDF]
, 2012 A novel green phase shifter system is proposed in this research. The system is developed by a combination of reconfigurable beam steering antennas and data acquisition (DAQ) boards. A combination of two reconfigurable beam steering antennas, located side-
Abd. Rahim, Sharul Kamal +9 more
core
Electron-Angular-Distribution Reshaping in Quantum Radiation-Dominated Regime
, 2018 Dynamics of an electron beam head-on colliding with an ultraintense focused ultrashort circularly-polarized laser pulse are investigated in the quantum radiation-dominated regime.
Hatsagortsyan, Karen Z. +4 more
core +1 more source
Damage localization for beam structure by moving load
, 2017 A static algorithm is presented in this article for damage localization in beam structures by moving load. Central to the damage localization approach is the combination of the moving load technique and the pure bending theory. The first advantage of the
Q. Yang, Jk Liu, B. Sun, C. Liang
semanticscholar +1 more source
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Stereotactic ablative radiotherapy (SABR) has become a key technique in management of spine metastases. With improved control over treatment plan dosimetry, there is a greater need for accurate patient positioning to guarantee agreement between the treatment plan and delivered dose.
Yohan A. Walter +4 more
wiley +1 more source
INFORMATIONAL ENTROPY IN SIMULATION OF ONE-DIMENSIONAL RANDOM FIELDS
TASK Quarterly, 2002 The entropy H of a continuous distribution with probability density function f(•) is defined as a function of the number of nodes (n) in a one-dimensional scalar random field.
SZYMON OPOKA, HENRYK WALUKIEWICZ
doaj
1.57 μm InGaAsP/InP surface emitting lasers by angled focus ion beam etching [PDF]
, 1992 The characteristics of 1.57 μm InGaAsP/InP surface emitting lasers based on an in-plan ridged structure and 45° beam deflectors defined by angled focused ion beam (FIB) etching are reported.
Beebe, E. D. +5 more
core