Reflector antennas with low sidelobes, low cross polarization, and high aperture efficiency [PDF]
Techniques are presented for computing the horn near field patterns on the subreflectors and for correcting the phase center errors of the horn pattern by shaping the subreflector surface.
Faigen, I. M. +3 more
core +1 more source
Preparation, testing and analysis of zinc diffusion samples, NASA Skylab experiment M-558 [PDF]
Transport mechanisms of zinc atoms in molten zinc were investigated by radiotracer techniques in unit and in near-zero gravity environments. Each melt in the Skylab flight experiments was maintained in a thermal gradient of 420 C to 790 C.
Braski, D. N. +2 more
core +1 more source
Effects of cryogenic cooling on cutting temperature and surface roughness in turning of AA7075 aluminum alloy. [PDF]
Sci RepRanjbar S +4 more
europepmc +1 more source
Investigation of the effect of copper content added to aluminum on cutting force in MQL turning. [PDF]
Sci RepFicici F, Ozdemir I, Grund T, Lampke T.
europepmc +1 more source
The Effect of Combined Processing on Residual Stresses in the Surface Layer of Power Plant Parts. [PDF]
Materials (Basel), 2022 Yakovleva A, Isaenkova M, Minushkin R.
europepmc +1 more source
Machining Micro-Error Compensation Methods for External Turning Tool Wear of CNC Machines. [PDF]
Micromachines (Basel)Zhang H, Lu T, Xia Z, Zhang Z, Zhu J.
europepmc +1 more source
Intelligent Soft Sensor for Spindle Convective Heat Transfer Coefficient Under Varying Operating Conditions Using Improved Grey Wolf Optimization Algorithm. [PDF]
Sensors (Basel)Pian J, Li G.
europepmc +1 more source
CBN cutting tool's surface roughness and tool wear prediction using JOA-optimized CNN-LSTM. [PDF]
Sci RepKhetre S, Bongale A, Kumar S.
europepmc +1 more source
Trends in Airborne Chrysotile Asbestos Fibre Concentrations in Asbestos Cement Manufacturing Factories in Zimbabwe from 1996 to 2016. [PDF]
Int J Environ Res Public Health, 2021 Mutetwa B, Moyo D, Brouwer D.
europepmc +1 more source