Results 71 to 80 of about 1,245 (249)

Origami Metamaterials Based on Low‐Melting‐Point Alloy Phase Transition: Breaking the Trade‐Off Between Reusability and Energy Absorption Quality

Advanced Science, EarlyView.
This work presents an origami metamaterial that integrates a low‐melting‐point alloy skeleton into an elastomeric shell. It dissipates energy through the metal's plastic deformation and recovers through the solid–liquid phase transition of the alloy together with the hyperelasticity of the shell.
Yupeng Liu, Wei Zhao, Chengjun Zeng, Jiuming Fan, Yanju Liu, Jinsong Leng   +5 more
wiley   +1 more source

Design and evaluation of a novel curved speed hump (CSH) for Indian roads

Transportation Research Interdisciplinary Perspectives
Traffic calming measures are crucial for sustainable traffic management. Globally, vertical and horizontal techniques, such as speed humps, speed cushions, roundabouts and chicanes are used to reduce vehicle speeds and enhance road safety.
Korra Ravi Kiran, M. Kumar, Hazratullah Paktin   +2 more
doaj   +1 more source

Effect of speed humps on injury consequences on trunk roads traversing towns in Ghana: A quasi-experimental study. [PDF]

Inj Prev, 2023
Gyaase D, Newton S, Adams CA, Enuameh Y, Adjei BN, Nakua EK.   +5 more
europepmc   +1 more source

Relaxor Ferroelectricity Enables Enhanced Thermoelectric Performance in In2Se3‐Alloyed GeTe

Advanced Science, EarlyView.
A non‐equimolar In3+/Se2− alloying strategy creates Ge vacancies in GeTe, inducing relaxor ferroelectricity that broadens the low thermal conductivity window. Simultaneously, cubic phase stabilization broadens optimal electrical transport, achieving an average zT > 1.0 over 330–625 K.
Yuting Zhang, Yang Li, Jianguo Chen, Kai Guo, Jun Luo, Jiye Zhang   +5 more
wiley   +1 more source

Coefficient diagram method-based control of semi-active vehicle suspensions with performance evaluation over circular and trapezoidal speed humps at multiple speeds

Journal of Engineering and Applied Science
The occurrence of abrupt vertical excitations, such as speed bumps, complicates the suspension system’s task of balancing stability with ride comfort. This paper uses the Coefficient Diagram Method (CDM) to design a semi-active suspension controller in a
Mohamed H. Abdelati, Khaled R. M. Mahmoud, Ebram F. F. Mokbel, Gamal Seif Elnasr, Ismail M. Youssef   +4 more
doaj   +1 more source

Traffic Calming Measures: An Evaluation of the Effect on Driving Speed

Promet (Zagreb), 2017
Road accidents are one of the leading causes of death in the world, particularly among young people. Excessive speed is one of the main risk factors in road traffic safety, increasing accident probability and affecting accident severity.
Audrius Vaitkus, Donatas Čygas, Vilma Jasiūnienė, Laura Jateikienė, Tadas Andriejauskas, Dovydas Skrodenis, Kornelija Ratkevičiūtė   +6 more
doaj   +1 more source

Temporary speed hump impact evaluation

, 2020
The main objective of this research was to evaluate the impact of temporary speed humps and speed tables on vehicle speeds, vehicle speed profiles, and traffic volumes along local and/or collector streets in several rural Iowa cities. A 25 mile per hour (mph) temporary speed hump and a 30 mph temporary speed table, both made of recycled rubber, were ...
openaire   +3 more sources

Disrupting Helicobacter pylori Iron Homeostasis With Bismuth Nanodrug‐Mediated Nutritional Trap for Targeted Gastric Infection Therapy

Advanced Science, EarlyView.
A “nutritional trap” strategy centered on disrupting bacterial iron homeostasis is proposed. The synthesized Bi‐TP@FU (TBF) can target Helicobacter pylori, interfere with the bacterial iron uptake and utilization processes to disrupt its iron homeostasis, induce bacterial death, and meanwhile preserve the balance of the intestinal flora.
Tianye Fang, Jinzhe Tong, Feng Feng, Cong Liu, Chang Shu, Jiaying Zhu, Shibo Zhang, Shuyue Deng, Wanchao Zuo, Yuhan Song, Jun Yang, Yanmin Ju, Yingying Xing, Jianjun Dai   +13 more
wiley   +1 more source

Simulation of train breaking-up processes on sorting humps with consideration of human factors

Archives of Transport
Disbanding of freight trains on sorting humps is a key process in railway transport. At most stations, this process still involves human operators controlling retarders and car speed.
Ihor Taran, Ainur Ursarova, Dmytro Kozachenko, Oleksandr Klyga, Serhii Hrevtsov   +4 more
doaj   +1 more source

CONTROLLING THE SPEED OF ROLLING CUTS IN CONDITIONS OF REDUCTION OF BRAKE POWER OF CAR RETARDERS

Nauka ta progres transportu, 2016
Purpose. The study aims to develop the requirements for organization of the marshalling process in the conditions when the power of retarder positions is less than the nominal one. Methodology.
D. M. Kozachenko, V. I. Bobrovskyi, C. V. Grevtsov, M. I. Berezovyi   +3 more
doaj   +1 more source