Results 61 to 70 of about 2,387,085 (259)

The propagation characteristics of low frequency radio waves in magnetized hypersonic plasma sheaths

open access: yesAIP Advances, 2023
Communication blackouts have been a main threat to hypersonic vehicles for decades. The low frequency communication was considered a potential approach to mitigate the “blackout.” Nowadays, low frequency transmitters serving underwater communication have
Mingyang Mao   +5 more
doaj   +1 more source

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

open access: yesAdvanced Functional Materials, Volume 35, Issue 23, June 5, 2025.
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   +15 more
wiley   +1 more source

Two-dimensional film cooling over a flat plate in hypersonic flow

open access: yesPropulsion and Power Research, 2018
Film cooling, as one efficient active cooling method, will hopefully be used in ‘hypersonic vehicles’ in the future. The hypersonic vehicle׳s surface is more likely a flat plate than a blunt body, so the cooling characteristics of two-dimensional (2-D ...
Ying Zhou, Hong Wu, Yulong Li, Yi Cai
doaj  

Overview on the Development Research of Vortex Lift Waverider

open access: yesHangkong gongcheng jinzhan, 2021
The waverider has good aerodynamic performance in hypersonic flight,however its performance is difficult to maintain when it deviates from the design state.
YI Huaixi, WANG Dou, LI Jun, LUO Shibin
doaj   +1 more source

Optimal speed of hypersonic cruise flight

open access: yesTheoretical and Applied Mechanics Letters, 2011
AbstractA coupling frame of speed gain and maintain was suggested to assess the flight performance of hypersonic cruise vehicles (HCV). The optimal cruise speed was obtained by analyzing the flight performance measured by the ratio of initial boost mass to generalized payload.
openaire   +2 more sources

Ti3C2Tx MXene‐Zirconium Diboride Based Ultra‐High Temperature Ceramics

open access: yesAdvanced Science, Volume 12, Issue 23, June 20, 2025.
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   +11 more
wiley   +1 more source

Titanium Matrix Composites Featuring Hierarchical Heterostructures

open access: yescMat, Volume 2, Issue 2, June 2025.
ABSTRACT Heterogeneous structure (HS) materials, which are characterised by heterogeneous interfaces with varying mechanical and physical properties, represent a groundbreaking advancement in structural materials. Titanium matrix composites (TMCs), a typical class of heterostructured materials, are widely used in key load‐bearing aerospace components ...
Shao‐Long Li   +2 more
wiley   +1 more source

Selecting the Technological Parameters of Steel Coatings Formation by Hypersonic Metallization

open access: yesМеханика машин, механизмов и материалов, 2015
The main idea of the article is to generalize the results of studies of the formation of the steel coatings produced by Hypersonic metallization, defining rational modes of recovery and hardening of transport machinery and technological equipment ...
Marat A. Belotserkovsky   +4 more
doaj  

Studies on the propagation properties of THz wave in inhomogeneous dusty plasma sheath considering scattering process

open access: yesResults in Physics, 2021
The plasma sheath formed during the reentry process is able to block the detection and communication to the hypersonic vehicle. Various of interactions occur during the propagation of EM wave in the plasma sheath.
Kai Chen   +4 more
doaj  

PTSI: A Person × Task × Situation Interaction Theory of Creativity

open access: yesThe Journal of Creative Behavior, Volume 59, Issue 2, June 2025.
ABSTRACT This article presents the PTSI (Person × Task × Situation Interaction) theory of creativity. The theory deals with the creative person, the deployment of creativity in tasks, the ecological context in which this deployment takes place, and the types of creative products that result. The theory draws upon a wide range of previous work.
Robert J. Sternberg
wiley   +1 more source

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