Results 111 to 120 of about 72,139 (299)

The Interaction Between Railway Vehicle Dynamics And Track Lateral Alignment

open access: yes
This thesis examines the effect of vehicle dynamics on lateral deterioration of the track alignment. As rail traffic runs along a route, the forces imposed upon the track cause the ballast to settle, and hence the track geometry deteriorates.
Gong, Cencen
core  

Receptor‐Free Identification of Toxic Gases Enabled by Hygroscopic Aqueous Salt Films

open access: yesAdvanced Functional Materials, EarlyView.
Water as a gas sensor coating sounds impossible—until it stops evaporating. Here, hygroscopic salt solutions (LiCl, LiBr, H3PO4) form non‐drying aqueous films on CNT chemiresistors under ambient air. Gases partition into these liquid layers, sometimes transforming into water, and generate salt‐specific resistance fingerprints across a four‐channel ...
Seongwoo Lee   +5 more
wiley   +1 more source

Body-fin interference on the Magnus effect of spinning projectile in supersonic flows

open access: yesEngineering Applications of Computational Fluid Mechanics, 2017
The numerical simulations of flow over a spinning finned projectile at angles of attack ranging from $ 4^\circ $ to $ 30.3^\circ $ in supersonic conditions were carried out to investigate the flow mechanism of the Magnus effect. The finite volume method,
Jintao Yin, Xiaosheng Wu, Juanmian Lei
doaj   +1 more source

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang   +7 more
wiley   +1 more source

Exploring mechanism of hidden, steep obliquely inclined bedding landslides using a 3DEC model: A case study of the Shanyang landslide in Shaanxi Province, China

open access: yesChina Geology
: Catastrophic geological disasters frequently occur on slopes with obliquely inclined bedding structures (also referred to as obliquely inclined bedding slopes), where the apparent dip sliding is not readily visible.
Jia-yun Wang   +5 more
doaj   +1 more source

Influence of drive types on dynamical responses of movers in ultra-high-speed maglev

open access: yes机车电传动, 2023
Based on the analysis on structural and dynamical characteristics of movers in linear induction motors and permanent magnet synchronous motors, this paper explored the change rules of mover motions of swaying, bouncing, rolling, yawing and pitching in ...
CHEN Xianfa   +4 more
doaj  

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben   +6 more
wiley   +1 more source

DEM Analysis of Lateral Sleeper Resistance : Effect of Sleeper-Ballast Interaction and Aggregate Friction

open access: yes
This study utilizes a 3D DEM sleeper-ballast bed model, comprising four sleepers interacting with the actual shape of the ballast, to comprehensively explore the impact of sleeper-ballast interaction and ballast aggregate friction coefficient on the ...
Xu, Lei,   +3 more
core   +1 more source

Texoskeletons: Developing the Fundamental Technologies for Creating Intelligent Soft Robotic Clothing With Integrated 1D Sensors and Actuators

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Traditional wearable exoskeletons rely on rigid structures, which limit comfort, flexibility, and everyday usability. This work introduces the fundamental technologies to create the first soft, lightweight, intelligent textile‐based exoskeletons (Texoskeletons) built using 1D sensors and actuators.
Amy Lukomiak   +19 more
wiley   +1 more source

Corticospinal and spinal responses and adaptations from shortening and lengthening resistance training and subsequent detraining

open access: yes, 2014
Maximising strength and neurological adaptations to resistance training has long been sought to improve athletic performance and enhance clinical rehabilitation functional outcomes.
Tallent, Jamie
core  

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