Results 41 to 50 of about 19,118 (263)

Temperature‐Resilient Polymeric Memristors for Effective Deblurring in Static and Dynamic Imaging

Advanced Functional Materials, EarlyView.
A thermally stable organic memristor based on a thiadiazolobenzotriazole (TBZ) and 2,5‐Dioctyl‐3,6‐di(thiophen‐2‐yl)pyrrolo[3,4‐c]pyrrole‐1,4(2H,5H)‐dione (DPP)‐based conjugated polymer is presented, demonstrating reliable, gradual resistance switching across a wide temperature range (153–573 K).
Ziyu Lv, Ming‐Hao Jiang, Hui‐Ying Liu, Qing‐Xiu Li, Tao Xie, Jingya Yang, Yan Wang, Yongbiao Zhai, Guanglong Ding, Shirui Zhu, Jia‐Hua Li, Miao Zhang, Ye Zhou, Bobo Tian, Wai‐Yeung Wong, Su‐Ting Han   +15 more
wiley   +1 more source

Application of AA-PSP to hypersonic flows: the double ramp model [PDF]

, 2012
Anodized Aluminium Pressure Sensitive Paint (AA-PSP) is known for its rapid response characteristics, making it a highly desirable technique when studying high-speed phenomenon on a global scale.
Basu, Bell, Berry, Carroll, E. Erdem, Erdem, Erdem, Gregory, H. Zare-Behtash, K. Kontis, Kameda, L. Yang, Lepicovsky, Liu, Liu, Mosharov, Navarro-Martinez, Sakaue, Sakaue, Schrijer, Settles, Settles, Settles, Zare-Behtash, Zelelow   +24 more
core   +1 more source

Ti3C2Tx MXene‐Zirconium Diboride Based Ultra‐High Temperature Ceramics

Advanced Science, EarlyView.
This study demonstrates the effectiveness of Ti3C2Tx MXenes as additives in ultra‐high‐temperature ceramics (ZrB₂), enhancing densification, reducing oxygen content, and improving mechanical properties. Through surfactant‐free electrostatic self‐assembly and spark plasma sintering, MXenes enabled the formation of a core–shell microstructure, resulting ...
Srinivasa Kartik Nemani, Nicola Gilli, Steven Goldy, Ankit Kumar, Yooran Im, Austin J. Vorhees, Brian C. Wyatt, Nithin Chandran BS, Nikhilesh Chawla, Garritt J. Tucker, Laura Silvestroni, Babak Anasori   +11 more
wiley   +1 more source

Aluminum Scandium Nitride as a Functional Material at 1000 °C

Advanced Electronic Materials, Volume 11, Issue 6, May 2025.
Aluminum scandium nitride (AlScN) exhibits remarkable ferroelectric, piezoelectric, and dielectric stability at extreme temperatures. This study demonstrates the robust performance of TaSi2/AlScN/TaSi2 capacitors up to 1000 °C, revealing a substantial increase in piezoelectricity and a marked reduction in coercive field.
Venkateswarlu Gaddam, Shaurya S. Dabas, Jinghan Gao, David J. Spry, Garrett Baucom, Nicholas G. Rudawski, Tete Yin, Ethan Angerhofer, Philip G. Neudeck, Honggyu Kim, Philip X.‐L. Feng, Mark Sheplak, Roozbeh Tabrizian   +12 more
wiley   +1 more source

Nanosecond Hyperquenching for Electron Cryo‐Microscopy Without Air‐Water Interface Artifacts

Chemistry – A European Journal, EarlyView.
A novel method for the ultrafast vitrification of the biological assemblies is assayed by the electron cryotomography. Protein specimens prepared by this method inherently lack the spatial/structural artifacts, which derive from the surface tension at the air‐water interface (AWI).
Utz H. Ermel, Harald Schwalbe, Alexey V. Cherepanov   +2 more
wiley   +1 more source

Study on Ground Experimental Method of Stagnation Point Large Heat Flux of Typical Sharp Wedge Leading Edge Structure

Aerospace, 2023
In this paper, aimed at the problem of large temperature gradient thermal testing with the typical sharp wedge leading edge structure of a hypersonic vehicle, a subsonic high-temperature combustion gas heating (SHCH) test device is used to conduct a ...
Ri Wang, Fengfei Lou, Bin Qi, Rong A, Yuanye Zhou, Sujun Dong   +5 more
doaj   +1 more source

Hypersonic Jets of Detonation Products in the Hydrodynamic Collapse of Macroscopic Voids

Propellants, Explosives, Pyrotechnics, EarlyView.
Using machined mm‐scale voids at the surface of PBX 9501 samples, detonation‐driven jets of product gases form. We find that there is an optimal distance from the charge surface at which the energy transfer due to this jetting is maximized using witness plate impact experiments and hydrocode simulations.
Jason J. Wilkening, Gabriel A. Montoya, Alejandro Strachan, Steven F. Son   +3 more
wiley   +1 more source

Effect of Wavy Wall on the Stability of Conical Hypersonic Boundary Layer at Small Angle of Attack

气体物理
In order to obtain a high lift-drag ratio, hypersonic vehicles usually fly with a certain angle of attack. As a potential means to delay hypersonic boundary layer transition at 0° angle of attack, it is not clear how wavy wall affect the deve-lopment of ...
Chengjian ZHANG, Yuteng GUI, Xueliang LI, Jiangyi CHENG, Jie WU   +4 more
doaj   +1 more source

Elasticity Mapping of Colloidal Glasses Reveals the Interplay between Mesoscopic Order and Granular Mechanics

Small Methods, Volume 9, Issue 3, March 20, 2025.
The two extremes of self‐assembled colloids are stiff perfect crystals and soft perfect glasses. But what happens in between? The answer is provided by elasticity mapping of a wide variety of colloidal glasses – continuous gradient structures, binary mixtures, and more – with scanning micro‐Brillouin light scattering.
Thomas Vasileiadis, Marius Schöttle, Maximilian Theis, Markus Retsch, George Fytas, Bartlomiej Graczykowski   +5 more
wiley   +1 more source

Intelligent Attitude Control of Hypersonic Vehicle Based on DDQN and Deep Q-Learning from Demonstrations [PDF]

Hangkong bingqi
In order to improve the speed and accuracy of solving the attitude control problem of hypersonic vehicle, an intelligent attitude control method of hypersonic vehicle based on demonstration learning is proposed.
Liu Jingwen, Cai Guangbin, Fan Yonghua, Fan Hongdong, Wu Tong, Shang Yiming
doaj   +1 more source