Results 141 to 150 of about 5,511 (234)

Approaches to substantiating the expediency of changing routing geometry with a complex plan of railway lines

Вестник Научно-исследовательского института железнодорожного транспорта
Introduction. The subject of the study is the problems of ensuring reliable operation of the railway track superstructure in small radius curves on the example of the most heavy-traffic sections of the Trans-Siberian railroad.
M. I. Mekhedov, V. A. Antonets, V. A. Ustinov, V. G. Fedulin   +3 more
doaj   +1 more source

Discussion on Rail Grinding Technology Development Situation and Grind Strategies

机车电传动, 2020
The origin and development status of rail grinding technology at home and abroad was summarized, and the classification of rail grinding technology at current stage was introduced, focusing on the principles of making grinding strategy for curve and ...
Jijun GONG, Menggang GUO, Bo HOU, Junping WANG, Jun JIANG   +4 more
doaj  

Women in space: A review of known physiological adaptations and health perspectives

Experimental Physiology, EarlyView.
Abstract Exposure to the spaceflight environment causes adaptations in most human physiological systems, many of which are thought to affect women differently from men. Since only 11.5% of astronauts worldwide have been female, these issues are largely understudied.
Millie Hughes‐Fulford, Danielle J. Carroll, Heather C. M. Allaway, Bonnie J. Dunbar, Aenor J. Sawyer   +4 more
wiley   +1 more source

Multi‐Dimensional Conductive Nanocomposites for Flexible Electronics

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 4, July 2026.
Multi‐dimensional conductive nanocomposites integrate 0D, 1D, and 2D nanomaterials through spatial structure regulation and interface engineering, achieving “1 + 1 > 2” synergistic effects. By leveraging 0D filling to reduce contact resistance, 1D bridging to construct continuous conductive paths, and 2D supporting to enhance mechanical stability ...
Tianyu Wang, Ruimin Cai, Abbas Ali, Lizhe Li, Li Yang, Hulin Zhang, Xuge Fan, Yumin Xia, Wenyong Lai, Linmao Qian, Tiehu Li, Guosheng Shao, Liang Tian   +12 more
wiley   +1 more source

Experimental and numerical studies on flow behavior of surface defects in the heavy rail rolling

, 2018
Purpose Surface defects are often present on the surface of continuous casting slabs and rolled products. A lot of surface defects of hot rolled products are inherited from initial defects on continuous casting slabs.
Qingming Chang, Chenggang Pan, Zizheng Ding, Jialin Zhou   +3 more
core   +1 more source

Countdown: Timespaces of Deadlines and Displacement

Population, Space and Place, Volume 32, Issue 5, July 2026.
ABSTRACT This article examines how politically structured deadlines and their accompanying countdowns generate dynamics of displacement by shaping anticipations of violence and prompting accelerated migration. Drawing on ethnographic research on Burundi's 2015 third‐term crisis and The Gambia's 2017 electoral impasse, we show how constitutional ...
Tone Sommerfelt, Simon Turner
wiley   +1 more source

Comparing the In‐Plane Shear Behavior of Glass Fiber‐Reinforced and Carbon Fiber‐Reinforced Polymer Laminates With the Same Epoxy Matrix System in ±45° Tensile Tests

Polymer Composites, Volume 47, Issue 12, Page 11051-11068, 20 June 2026.
Schematic illustration of ±45° tensile testing, including detection of first‐ply failure (FPF) by optical crack detection and acoustic emission monitoring, comparison of FPF values with ASTM D3518 and D3039 criteria, and resulting ply level stress states at FPF for GF‐ and CF‐epoxy laminates.
Maria Gfrerrer, Vasco D. C. Pires, Andreas J. Brunner, Clara Schuecker, Gerald Pinter   +4 more
wiley   +1 more source

Active Stiffness Modulation of Flexible PDMS Elastomer by Embedding Shape Memory Alloy Wires: Fabrication and Modeling

FlexTech, Volume 2, Issue 1, Page 14-22, June 2026.
Active stiffness modulation is achieved in NiTi shape memory alloy‐reinforced PDMS and carbon fiber‐epoxy composites, with reversible 3‐fold modulus increase via Joule heating and validated predictive models, which resolves longstanding adaptive design challenges.
Xi Yi, Dongjie Jiang
wiley   +1 more source

Methodology for statistical analysis of squat rail defects [PDF]

, 2018
This paper proposes a methodology for statistical analysis of data obtained by visual inspection of squat defects on the rail head. Rail inspection by visual observation, including measurement of the squat defect position and depth was performed in ...
Mićić, Milica, Brajović, Ljiljana, Pustovgar, Andrey   +2 more
core  

Integrating simultaneous interfacial shear rheology with neutron reflectometry for structural and dynamic analysis of fluid interfacial systems

Journal of Applied Crystallography, Volume 59, Issue 3, Page 751-764, June 2026.
We present a new setup at the FIGARO horizontal neutron reflectometer enabling simultaneous measurement of the structural and mechanical properties of liquid interfaces, combining neutron reflectometry with interfacial shear rheology.The study of the structure and mechanical properties of complex fluid interfaces has attracted growing interest in ...
Pablo Sánchez-Puga, Javier Tajuelo, Javier Carrascosa-Tejedor, Miguel Ángel Rubio, Philipp Gutfreund, Armando Maestro   +5 more
wiley   +1 more source