Results 61 to 70 of about 102,163 (333)
Dual beam optical interferometer [PDF]
, 2003 A dual beam interferometer device is disclosed that enables moving an optics module in a direction, which changes the path lengths of two beams of light. The two beams reflect off a surface of an object and generate different speckle patterns detected by
Gutierrez, Roman C.
core +1 more source
Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution
Advanced Engineering Materials, EarlyView.Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat +5 more
wiley +1 more source
Reconfigurable Multi-Beam Dual-Band Antenna based on Vee Dipoles
Advanced Electromagnetics, 2018 This paper presents a novel antenna configuration to support reconfigurable multi-beam feature with dual-band capability. The proposed design uses four double Vee dipoles with their arms printed on either sides of a substrate and fed through a single ...
L. Snehalatha +2 more
doaj +1 more source
Extraction and analysis of microcrater residues using focused ion beam microscopy [PDF]
, 2006 We describe results from a new technique using dual beam FIB/SEM with which impact residues can be extracted from microcraters and analysed by EDS.
Bridges, J.C. +2 more
core
The Arecibo Dual-Beam Survey: Arecibo and VLA Observations
, 2000 The Arecibo Dual-Beam Survey is a "blind" 21 cm search for galaxies covering \~430 deg^2 of sky. We present the data from the detection survey as well as from the follow-up observations to confirm detections and improve positions and flux measurements ...
Hulsbosch A. N. M. +4 more
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Advanced Engineering Materials, EarlyView.In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart +3 more
wiley +1 more source
Metals, 2019 In order to meet the requirements of alignment capability, gap tolerance and welding track control, dual-beam laser welding has been put forward to weld tailored blanks with different thicknesses.
Xinge Zhang +4 more
doaj +1 more source
Dual-Circularly Polarized 60 GHz Beam-Steerable Antenna Array with 8 × 8 Butler Matrix
Applied Sciences, 2020 A beam-steerable dual-circularly polarized 60 GHz antenna array is proposed. A 1 × 4 dual-fed stacked patch antenna array is integrated with an 8 × 8 Butler matrix.
Yuntae Park, Jihoon Bang, Jaehoon Choi
doaj +1 more source
AIP Advances, 2022 We propose an interconnected receiver–transmitter surface (IRTS) for simultaneously generating left-hand circularly polarized (CP) beams and right-hand CP beams based on the Pancharatnam–Berry phase, thus realizing dual CP dual beam radiations.
Huili Wang +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti +11 more
wiley +1 more source