Results 101 to 110 of about 770,468 (299)

Wind tunnel model and method [PDF]

, 1974
The design and development of a wind tunnel model equipped with pressure measuring devices are discussed. The pressure measuring orifices are integrally constructed in the wind tunnel model and do not contribute to distortions of the aerodynamic surface.
Jackson, C. M., Jr., Summerfield, D. G.
core   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source

Review on water disaster prevention of tunnels

Yantu gongcheng xuebao
Water disaster in tunnel engineering is a persistent problem in tunnel field. To address this issue, this paper summarizes the literature of water disaster prevention in tunnel engineering, defines the problem of water disaster in tunnel engineering ...
WANG Fuming, CAI Zhiyan, GUO Chengchao, TAN Ting, SU Fangchen   +4 more
doaj   +1 more source

Experimental Investigation on the Influence of Regional Concrete Spalling on Shield Tunnel Segments

Advances in Civil Engineering, 2019
Based on the field investigation and analysis, the mechanical characteristics of segment structure in shield tunnels are compared and analyzed under the circumstances of different concrete spalling region by the method of similarity model experiment ...
Shimin Wang, Chuankun Liu, Gaoyu Ma, Songyu Cao, Junbo Zhang, Daiyue Lu, Chuan He   +6 more
doaj   +1 more source

Tunneling spectroscopy of superconducting MoN and NbTiN grown by atomic layer deposition

, 2013
A tunneling spectroscopy study is presented of superconducting MoN and Nb$_{0.8}$Ti$_{0.2}$N thin films grown by atomic layer deposition (ALD). The films exhibited a superconducting gap of 2meV and 2.4meV respectively with a corresponding critical ...
Altin, Serdar, Becker, Nicholas G., Cao, Chaoyue, Claus, Helmut, Groll, Nickolas, Klug, Jeffrey A., Pellin, Michael J., Proslier, Thomas, Zasadzinski, John F.   +8 more
core   +1 more source

Electric Field‐Dependent Conductivity as Probe for Charge Carrier Delocalization and Morphology in Organic Semiconductors

Advanced Functional Materials, EarlyView.
Applying a high electric field to a doped organic semiconductor heats up the charge carrier distribution beyond the lattice temperature, enhancing conductivity. It is shown that the associated effective temperature can be used to extract the effective localization length, which is a characteristic length scale of charge transport and provides ...
Morteza Shokrani, Felix Maximilian Graf, Anton Kompatscher, Dennis Derewjanko, Martijn Kemerink   +4 more
wiley   +1 more source

Study on dynamic responses and impact factors of long span deck type CFST arch bridge under vehicle loads

Scientific Reports
The long span deck type concrete filled steel tube (CFST) arch bridge encounters considerable safety risks under intricate traffic loads because to its extensive span, elevated columns, and pronounced dynamic sensitivity.This study utilizes the Wujiang ...
Yong Zeng, Nianchuan Yin, Yujie Tan, Shihao Qi, Hongmei Tan   +4 more
doaj   +1 more source

Temperature‐Induced Nonvolatile Switching through Thermal Hysteresis in a Gd3Fe5O12/Ho3Fe5O12 Exchange‐Coupled Rare‐Earth Iron Garnet Bilayer

Advanced Functional Materials, EarlyView.
Reducing power consumption in spintronic memory remains a major challenge due to the need for high current densities. A bilayer of gadolinium and holmium iron garnets enables purely temperature‐induced, nonvolatile magnetic switching with bistable states within a ±25 K range. This approach achieves up to 66‐fold lower energy use than current spin–orbit
Junseok Kim, Phuoc Cao Van, Jong‐Ryul Jeong, Hyungyu Jin   +3 more
wiley   +1 more source

A Deep Learning-Driven Framework for Real-Time Recognition and Quantification of Subway Tunnel Surface Defects Using High-Resolution Imaging

Urban Rail Transit
Subway tunnels, with their complex underground environment, frequently develop surface defects like cracks and water leakage over time. Traditional manual inspection methods are inadequate for current accuracy and efficiency needs.
Zunchao Ren, Yanyi Liu, Dukun Zhao, Yueji He, Junjie Zhang   +4 more
doaj   +1 more source

Minimum Energy Test Direction Design in the Control of Cryogenic Wind Tunnels [PDF]

The advent of the cryogenic wind tunnel concept is attributable to the need for high Reynolds number flow in wind tunnels. The cryogenic wind tunnel concept consists of operating the test medium of a conventional tunnel at cryogenic temperatures down to ...
Balakrishna, S., Goglia, G. L.
core   +1 more source