Results 71 to 80 of about 34,642 (222)

Sensitivity‐Tunable Complex Permittivity Sensing Enabled by Bound States in the Continuum in a Waveguide‐Resonator System

Laser &Photonics Reviews, EarlyView.
This work introduces two types of bound states in the continuum (BICs) and their merging in a waveguide‐resonator system, which significantly enhances the quality factor (Q$Q$). Benefiting from the high‐Q$Q$ characteristics of quasi‐BICs, a sensitivity‐tunable complex permittivity sensor is developed based on this system, achieving improvements of 93 ...
Yuhang Yang, Yinbing An, Yu Chen, Yihao Yang, Zi‐lan Deng, Yulan Huang, Shangli Tang, Tao Fu   +7 more
wiley   +1 more source

Experimental Study on Shear Lag Effect of Long-Span Wide Prestressed Concrete Cable-Stayed Bridge Box Girder under Eccentric Load

Construction Materials
Based on the engineering background of the wide-width single cable-stayed bridge, the shear lag effects of the cross-section of these bridge box girders under the action of the eccentric load were experimentally studied. The behavior of shear lag effects
Yanfeng Li, Jiyuan Xie, Fengchi Wang, Di Wu, Jiahui Wang, Yanao Liu   +5 more
doaj   +1 more source

GREAT: the SOFIA high-frequency heterodyne instrument

, 2012
We describe the design and construction of GREAT, the German REceiver for Astronomy at Terahertz frequencies operated on the Stratospheric Observatory for Infrared Astronomy (SOFIA).
Becklin, de Graauw, Guan, H. W. Hübers, Horn, J. Stutzki, Klein, Klein, P. Hartogh, Pilbratt, Pütz, R. Güsten, Röser, S. Heyminck, U. U. Graf, Villanueva, Wagner-Gentner, Young   +17 more
core   +1 more source

Rotatable Lens‐Based 3D Reconstruction Method for Monocular Vision Systems

SmartBot, EarlyView.
Accurate 3D reconstruction in confined environments remains challenging because conventional vision‐based measurement systems are difficult to maintain compactness without sacrificing accuracy. Here, the authors develop a rotatable lens‐based monocular vision system, which is the first time using the refraction of the light induced by a rotating wedge ...
Puchen Zhu, Zhanpeng Huang, Wenkai Lai, Xiaoyin Zheng, Yiding Nie, Yang Liu, Jiajun An, Daifeng Wang, Dongliang Fan, Xiao Li, Jian S. Dai, Xin Ma   +11 more
wiley   +1 more source

Design and realization of a sputter deposition system for the \textit{in situ-} and \textit{in operando-}use in polarized neutron reflectometry experiments

, 2017
We report on the realization of a sputter deposition system for the in situ- and in operando-use in polarized neutron reflectometry experiments. Starting with the scientific requirements, which define the general design considerations, the external ...
Böni, Peter, Förg, Benjamin, Herrnberger, Alexander, Kreuzpaintner, Wolfgang, Mairoser, Thomas, Mannhart, Jochen, Meir, Stefan, Schmehl, Andreas, Stephanos, Cyril, Wiedemann, Birgit   +9 more
core   +1 more source

In Situ Investigation of Microstructure Evolution and Stress Generation During Low‐Pressure Carburizing and Quenching by Means of Synchrotron X‐Ray Diffraction

steel research international, EarlyView.
This study uses in situ synchrotron X‐ray diffraction at the German Electron Synchrotron to analyze low‐pressure carburizing (LPC) in steels. The findings reveal surface carbon saturation and carbide formation kinetics, and phase‐specific stress development during quenching. The results show carbide kinetics depend on steel grade and size, while stress
Ogün Baris Tapar, Michael Georg Zürn, Jens Gibmeier, Antonio Carlos de Figueiredo Silveira, Matthias Steinbacher, Norbert Schell, Jérémy Epp   +6 more
wiley   +1 more source

General formulation for uniform and non‐uniform high‐strength steel slender I‐section beams

Steel Construction, EarlyView.
Abstract The Ayrton–Perry approach is the basis of Eurocode 3 rules for buckling resistance, with distinct curves and imperfection factors depending on section type, steel grade, and other parameters. For generic members – built‐up or not, uniform or not, with complex supports or not – the code allows either the general method (clause 8.3.4 of Eurocode
José Osvaldo Ferreira Filho, Luís Simões da Silva, Trayana Tankova, Hermes Carvalho   +3 more
wiley   +1 more source

The Numerical Analysis of the Effective Flange Width in T-section Reinforced Concrete Beams

Procedia Engineering, 2017
Abstract The problem of determining the effective flange width for reinforced concrete T-sections subjected to bending was presented in the paper. The numerical analysis was performed in order to define an influence of parameters on the width value.
Ciesielczyk, Katarzyna, Szumigała, Maciej, Ścigałło, Jacek   +2 more
openaire   +1 more source

Characterization of an in-vacuum PILATUS 1M detector

, 2014
A dedicated in-vacuum X-ray detector based on the hybrid pixel PILATUS 1M detector has been installed at the four-crystal monochromator beamline of PTB at the electron storage ring BESSY II in Berlin.
Gollwitzer, Christian, Krumrey, Michael, Müller, Peter, Wernecke, Jan   +3 more
core   +1 more source

Performance analysis of strengthening reinforced concrete beams under pure torsion using galvanized steel sheets: Experimental and numerical investigation

Structural Concrete, EarlyView.
Abstract Reinforced concrete (RC) beams can be subjected to torsion, and failure due to torsion is brittle and poses a significant risk to occupants. Moreover, strengthening of existing RC beams in torsion may be required due to the upgrade of the structures or as part of structural rehabilitation.
Ahmed Hamoda, Mizan Ahmed, Ahmad G. Saad, Aref A. Abadel, Saad A. Yehia   +4 more
wiley   +1 more source