Results 61 to 70 of about 1,440,079 (286)

Bistable Isochoric Chiral Metamaterials with Reprogrammable Multiaxial Responses

Advanced Functional Materials, EarlyView.
An isochoric bistable rotational unit cell enables in situ modification of internal contact conditions post‐fabrication, without altering the global envelope dimensions of the surrounding architecture. By selectively switching between open and closed states, the tessellated chiral metamaterial can reprogram its volumetric response, including bulk ...
Shujia Chen, Lei Wu, Jingran Liu, Damiano Pasini   +3 more
wiley   +1 more source

Prediction of Friction Coefficient Based on 3D Texture Characteristics of Road Surfaces

Applied Sciences
Accurate assessment of road pavement friction is crucial for maintaining road safety. This study explores the prediction of the friction coefficient (µ) using 3D texture parameters of pavement surfaces.
Matúš Kováč, Matej Brna, Peter Pisca, Martin Decký   +3 more
doaj   +1 more source

Deformation‐Tolerant Functional Elastomer Overlayers for Haze‐Assisted Light Extraction and Color Conversion in Stretchable Mechanoluminescent Films

Advanced Functional Materials, EarlyView.
Functional elastomer overlayers are integrated onto stretchable ZnS:Cu‐PDMS mechanoluminescent films to regulate light after emission without modifying the emissive composite. NLC‐PU provides haze‐assisted light extraction to enhance green mechanoluminescence, while DCM‐NLC‐PU combines green‐to‐yellow‐orange color conversion with enhanced outward light
Gyudam Jeon, Seongkyu Song, Soon Moon Jeong, Na Young Ha   +3 more
wiley   +1 more source

Ultra‐Thin Tow‐Based Discontinuous Composites—Material Overview and Aspirations

Advanced Functional Materials, EarlyView.
Tow‐based discontinuous composites made from ultra‐thin tapes offer outstanding in‐plane mechanical properties. This material, inspired by Nacre, has high volume fraction of tapes exceeding 90 % and allows for quasi‐isotropic material plates less than 100 micrometer in thickness.
Ioannis Katsivalis, Vasiliki Safranoglou, Luis Gulfo, Michael R. Wisnom, Martin Fagerström, Malin Åkermo, Soraia Pimenta, Dan Zenkert, Leif E. Asp   +8 more
wiley   +1 more source

High‐Modulus Skeleton‐Reinforced PDMS Microstamps for Precision Transfer Printing of Microscale Devices

Advanced Functional Materials, EarlyView.
Elastomeric micropillars bend under contact loading, sliding microscale devices out of alignment during transfer printing. A hybrid PDMS stamp embeds a high‐modulus skeleton within each pillar while retaining a compliant contact surface. The reinforcement confines pillar deformation, suppressing interfacial sliding and preserving array registration on ...
Seol Ahn, Yulin Zhou, Jeongmin Seo, Seong Woo Hong, Sungyeon Kim, Seohyeon Kim, Haechang Ryu, Raudel Avila, Yei Hwan Jung   +8 more
wiley   +1 more source

Construction and simulation of a decision model for anti-slip restoration technology of asphalt pavement surface based on vehicle dynamics [PDF]

Archives of Civil Engineering
Taking real-time and effective preventive maintenance measures on in-service roads can reduce traffic congestion, eliminate potential road safety hazards, and greatly reduce road maintenance costs.
Rui Cheng, Xinkai Li, Lichao Wang
doaj   +1 more source

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

Advanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena, J. Terence Blaskovits, Kun‐Han Lin, Denis Andrienko   +3 more
wiley   +1 more source

Safety-Filtered Residual Reinforcement Learning over Model Predictive Control for Friction-Aware Autonomous Vehicle Platooning

Machines
This paper presents a deployment-oriented longitudinal platoon-control architecture for connected and autonomous vehicles operating under repeated leader hard-braking, cut-ins, and spatially varying road friction.
Ali S. Allahloh, Atef M. Ghaleb, Mohammad Sarfraz, Abdalla Alrashdan, Mohammed A. H. Ali, Adel Al-Shayea   +5 more
doaj   +1 more source

Impact of Side Friction on Urban Roads

, 2020
Urban roads in India operate under mixed traffic conditions. They are subjected to side friction factors such as slow-moving vehicles, interference of buses, pedestrian traffic, trading activities, frequent side roads, vehicles parked along the carriage way, entry and exit through approach road.
Arya V., S., Aswathy B. Binu, Jyothi Pradeep, Greena Thomas, Suminamol, A., Aparna, V.   +5 more
openaire   +1 more source

Experimental Study on Road Friction Variation and Stopping Distance Uncertainty using ABS Braking Data [PDF]

, 2022
This paper investigates the remaining fluctuation of road friction and stopping distance when the contribution from known sources has been removed. This fluctuation can serve as uncertainty for active safety functions relying on friction estimates.
Sj\uf6berg, Jonas, Yang, Derong, Karyotakis, Konstantinos-Ektor, Jonasson, Mats   +3 more
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