Results 61 to 70 of about 536,235 (301)
High-resolution spatial mapping of a superconducting NbN wire using single-electron detection
, 2009 Superconducting NbN wires have recently received attention as detectors for visible and infrared photons. We present experiments in which we use a NbN wire for high-efficiency (40 %) detection of single electrons with keV energy.
Brune, M. +7 more
core +2 more sources
Layer Formations in Electron Beam Sintering [PDF]
, 2007 Among direct metal processing manufacturing technologies (Rapid Manufacturing), Electron Beam Sintering (EBS) exhibits a high application potential.
Kahnert, M., Lutzmann, S., Zaeh, M. F.
core +1 more source
Advanced Engineering Materials, EarlyView.Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source
Dual-Ridge Gap Waveguide-Based Antenna With Diverse Beam Capabilities
IEEE Open Journal of Antennas and Propagation, 2022 In this paper, a dual-ridge gap waveguide (DRGW) based antenna with beam scanning, sum-difference beam, and flat top beam capabilities has been proposed. The proposed antenna is composed of a gap waveguide (GW) with two flared horn-shaped ridges.
Yan Shi, Hua Jie Wang
doaj +1 more source
Advanced Engineering Materials, EarlyView.Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley +1 more source
SensorsThis article proposes a novel fixed-frequency beam scanning leakage antenna based on a liquid crystal metamaterial (LCM) and adopting a metal column embedded microstrip line (MCML) transmission structure.
Shunhu Hou +5 more
doaj +1 more source
Scientific Reports, 2021 Quartz lamp heaters and hypersonic wind tunnel are currently applied in thermal assessment of heat resistant materials and surface of aircraft. However, it is difficult to achieve precise heat flux distribution by quartz lamp heaters, while enormous ...
Chuanmao Zheng +3 more
doaj +1 more source
Continuous axial scanning of a Gaussian beam via beam steering
Optics Express, 2017 We propose and demonstrate experimentally the transfer of one spatial degree of freedom of a laser beam onto another one. Using a multi-plane light conversion device (MPLC) and a modal analysis, we designed a passive setup with immediate response which couples a displacement and tilt in the transverse plane to a longitudinal shift of the focus point of
Pauline, Boucher +4 more
openaire +2 more sources
Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology
Advanced Engineering Materials, EarlyView.We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham +7 more
wiley +1 more source
IEEE Access, 2019 We describe the results of a wideband, reconfigurable reflectarray concept based on polarization-rotating unit cells (PRUCs) with a minimum-switch topology design. To enhance the simplicity and decrease the cost, the approach focuses exclusively on a one-
Hung Luyen +3 more
doaj +1 more source