Results 41 to 50 of about 254,103 (283)

Rapidly Solidified High‐Strength Invar 36 Prepared by Planar‐Flow Melt Spinning

open access: yesAdvanced Engineering Materials, EarlyView.
The Invar 36 alloy was rapidly solidified using the planar‐flow melt‐spinning technique. Ribbon samples with thicknesses ranging from 20 to 160 mm were produced. As the grain size of the ribbon decreased to sub‐micron levels, the hardness increased by more than 2 times.
Bekir Akgül, Mehmet Kul
wiley   +1 more source

Planar Non-Uniformity of Regular and Partially Regular Microreliefs and Method for Its Evaluation

open access: yesEng
Based on the analysis of grooves of regular and partially regular microreliefs formed on flat surfaces, the relationship between the geometric parameters of the grooves of their microreliefs, which ensures their regularity, was revealed.
Volodymyr Dzyura   +3 more
doaj   +1 more source

Contact Force Estimation in the Railway Vehicle Wheel-Rail Interface [PDF]

open access: yes, 2011
Increased patronage of railways in the UK in the past 20 years has put demands on rolling stock to operate at peak availability with reduced time available for maintenance.
Ward, Christopher P.   +10 more
core   +1 more source

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

open access: yesAdvanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri   +11 more
wiley   +1 more source

Investigation of tractor engine power and economical working conditions utilization during transport operation [PDF]

open access: yesTransport, 2008
Article analyzes tractor working and its engine conditions from economical point of view. Overview of tractor wheel slippage reliance on the traction force and weight utilization coefficient is given.
Antanas Juostas, Algirdas Janulevičius
doaj   +1 more source

The Design and Calculation Features of Tandem Friction Clutch of Planetary Gearbox

open access: yesМеханика машин, механизмов и материалов, 2009
The design features of multiplate friction clutches of heavy-duty hydromechanical transmissions with rotating housing by example of MZKT gearboxes are devoted in this article.
Yu.I. Nikolaev   +3 more
doaj  

Movement of the vehicle being braked when some wheels are incapable of braking or have lost touch with the road surface

open access: yesTransport, 2006
Movement of the vehicle when its certain wheels have lost contact with the surface of the road or cannot be held up through other reasons is considered in the present article.
Ona Lukoševičiene, Edgar Sokolovskij
doaj   +1 more source

Two‐Photon Grayscale Lithography (2GL) of High Mechanical and Optical Quality 3D Silica Glass Microstructures

open access: yesAdvanced Functional Materials, EarlyView.
Two‐photon grayscale lithography (2GL) enables high‐speed and precise 3D printing of thermolyzed silica glass microstructures with optical‐grade surface quality, high quality factors, and mechanical strength utilizing a custom‐made pre‐glass resist based on polyhedral oligomeric silsesquioxane (POSS) modified with a high‐sensitivity Norrish type II ...
Jonathan L. G. Schneider   +4 more
wiley   +1 more source

Analysis of wheel and rail Hertzian and Non-Hertzian contact theories using UM software considering the effect of rail inclination on wheel wear [PDF]

open access: yesInternational Journal of Railway Research, 2021
Wheel-rail interaction has always been one of the issues in the railway industry. In this paper, the effect of Hertzian and non-Hertzian contact theories on the wheel wear due to the rail inclination was investigated. by using the UM software.
M. Aziznia, A. Owhadi, M. Shadfar
doaj  

Graded Metallopolymer Structures with Shape‐Memory Abilities via DLP‐Based 3D‐Printing

open access: yesAdvanced Functional Materials, EarlyView.
This study presents the digital light processing (DLP) based 3D printing of graded metallopolymers featuring shape‐memory abilities. The permanent shape can be recovered in two distinct steps with excellent rates. The obtained graded prints range from simple rod‐like structures to complex hollow materials.
Michael Klein   +6 more
wiley   +1 more source

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