Results 141 to 150 of about 208,745 (304)

The influence of the nano-filler filling amount on creep properties

open access: yes, 2019
This article deals with the issue of the amount of clay type nano-fillers used for the improvement of mechanical properties of the basic material HDPE. These fillers already showed their positive influence on various mechanical properties.
Měřínská, Dagmar   +4 more
core  

Research on roadside filling body materials and reasonable width of gangue concrete

open access: yesMeikuang Anquan
In order to reduce the cost of roadside filling and ensure the stability of the retained roadway system, the 150202 fully mechanized mining face of Shenlei Coal Mine is taken as the background, and the roadside filling body is made of coal gangue and fly
Gengqun YANG   +5 more
doaj   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

open access: yesAdvanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai   +6 more
wiley   +1 more source

Design and Evaluation of a Dual-Chamber Pre-Cut Cassava Stem Filling Mechanism for Precision Planting

open access: yesAgriEngineering
To address the issues of poor seed filling efficiency, low qualified seeding index, and high missed-seeding index in cassava precision planters, this study developed a dual-chamber pre-cut cassava stem filling mechanism.
Lintao Chen   +6 more
doaj   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han   +5 more
wiley   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

open access: yesAdvanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee   +7 more
wiley   +1 more source

Biventricular diastolic filling patterns after coronary artery bypass graft surgery

open access: yes, 2006
ObjectiveWe sought to study the evolution of biventricular filling properties after coronary artery bypass grafting.BackgroundThe evolution of diastolic function as defined with newer echocardiographic modalities after coronary artery bypass grafting ...
Pierre Couture   +11 more
core   +1 more source

Parameters Influence of New Particle Damper-based Fastener on its Damping Ratio

open access: yesChengshi guidao jiaotong yanjiu
[Objective] Fastener stiffness and damping are important factors affecting rail system vibration and wheel-rail noise, especially the fastener damping can directly affects the high frequency attenuation rate of the rail structure (rail noise) and the ...
YAO Yuyang   +3 more
doaj   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

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