Results 111 to 120 of about 122,192 (354)
Advanced Intelligent Systems, EarlyView.This work introduces a rigid‐flexible coupling building block by combining rigid parallel structures with soft origami structures. Through theoretical and experimental analysis, geometric parameters are optimized to achieve kinematic synergy between the two structures.
Ji Wang +7 more
wiley +1 more source
Journal of Applied Polymer Science, EarlyView.This study investigates the aging behavior of aerospace‐grade polymers PEEK, PTFE, and PI under thermal oxidative and humid conditions. Findings highlight structural, thermal, mechanical, and dielectric changes, including surface roughening, void formation, and altered crystallinity.
Jawad Ahmad, Mohamad Ghaffarian Niasar
wiley +1 more source
How companies use typeface design to engage consumers in charitable activities
Psychology &Marketing, Volume 40, Issue 1, Page 107-123, January 2023., 2023 Abstract This research examines how the typeface design in a charitable appeal affects consumers' evaluations of the ad and, in turn, their willingness to engage in the advertised charitable activities. We propose that the typeface's simulation of a handwritten note creates a sense of connectedness to the information sender (e.g., organization, brand),
Xing‐Yu (Marcos) Chu +3 more
wiley +1 more source
On the Outage Analysis and Finite SNR Diversity-Multiplexing Tradeoff of Hybrid-Duplex Systems for Aeronautical Communications [PDF]
arXiv, 2017 A hybrid-duplex aeronautical communication system (HBD-ACS) consisting of a full-duplex (FD) enabled ground station (GS), and two half-duplex (HD) air-stations (ASs) is proposed as a direct solution to the spectrum crunch faced by the aviation industry.
arxiv
Minimum-Delay Routing for Integrated Aeronautical Ad Hoc Networks Relying on Passenger-Planes in the North-Atlantic Region [PDF]
arXiv, 2020 Relying on multi-hop communication techniques, aeronautical ad hoc networks (AANETs) seamlessly integrate ground base stations (BSs) and satellites into aircraft communications for enhancing the on-demand connectivity of planes in the air. In this integrated AANET context we investigate the shortest-path routing problem with the objective of minimizing
arxiv
Arthritis &Rheumatology, EarlyView.Objective The aim of this study was to determine whether pollutants such as fire smoke–related particulate matter <2.5 μm (PM2.5) are associated with incident rheumatoid arthritis (RA) and RA‐associated interstitial lung disease (RA‐ILD). Methods This patient–control study used Veterans Affairs (VA) data from October 1, 2009, to December 31, 2018.
Vanessa L. Kronzer +13 more
wiley +1 more source
Macromolecular Rapid Communications, Volume 44, Issue 1, January 2023., 2023 The development of a semicrystalline, shape memory polymer is synthesized by simultaneous free radical polymerization and crosslinking in a blend of polybutadiene and octadecyl acrylate, enabling the melt fabrication of complex 3D molded shapes with potential use in anticounterfeiting and antitampering applications.
Sayan Basak, Kevin A. Cavicchi
wiley +1 more source
STUDENT SCIENTIFIC SOCIETY IN THE FIELD OF AVIATION AND COSMONAUTICS (1910-1920s)
Высшее образование в России, 2016 The article describes the activities of two student scientific associations that existed in 1920B1920s: the Circle for the study of Aeronautics and the Section of interplanetary connections, organized with an interval of twenty years in St.
Mikhail N. Okhotchinskiy
doaj
Statistical methods for critical scenarios in aeronautics
ESAIM: Proceedings and Surveys, 2015 We present numerical results obtained on the CEMRACS project Predictive SMS proposed by Safety Line. The goal of this work was to elaborate a purely statistical method in order to reconstruct the deceleration profile of a plane during
Alrachid Houssam +3 more
doaj +1 more source
Nonexistence of time reversibility in statistical physics [PDF]
arXiv, 2005 Contrary to the customary thought prevailing for long, the time reversibility associated with beam-to-beam collisions does not really exist. Related facts and consequences are presented. The discussion, though involving simple mathematics and physics only, is well-related to the foundation of statistical theory.
arxiv