Results 51 to 60 of about 1,873,474 (208)

Effect of Chemically Modified Banana Fibers on the Mechanical Properties of Poly-Dimethyl-Siloxane-Based Composites [PDF]

open access: yes, 2019
The study presents the mechanical properties of polymer-based composites reinforced with chemically modified banana fibers, by alkalization in different concentrations of sodium hydroxide (NaOH).
ABADE-ABUGRE, Miriam   +9 more
core  

Sieving Performance of Dual-Track Shale Shaker Based on DEM-MBD Coupling

open access: yesShiyou jixie
To improve the processing capacity of the shale shaker, meet the needs of different working conditions in the drilling process, and solve the problems of “screen blinding” and “mud runaway” occurring in the existing shale shaker, a “linear + variable ...
Lü Zhipeng   +4 more
doaj   +1 more source

Ultra-broadband acoustic absorption with inhomogeneous high-order Fabry–Pérot resonances

open access: yesAPL Materials, 2023
We present an ultra-broadband acoustic metamaterial with inhomogeneous high-order Fabry–Pérot (FP) resonances that achieves near-perfect continuous absorption in the range of 400–10000 Hz.
Chongrui Liu   +4 more
doaj   +1 more source

Vision-Based Damage Detection Method Using Multi-Scale Local Information Entropy and Data Fusion

open access: yesApplied Sciences
Low-spatial-resolution measurements from contact sensors and excessive measurement noise have impeded the implementation of vibration-based damage detection.
Yiming Zhang, Zili Xu, Guang Li, Cun Xin
doaj   +1 more source

Vacuum mixing technology to improve the mechanical properties of ultra-high performance concrete [PDF]

open access: yes, 2015
Ultra-high performance concrete is an important evolution in concrete technology, enabled by the combination of a good particle packing density, a suitable mixing procedure and compatible binders and admixtures.
De Schutter, Geert, Dils, Jeroen
core   +2 more sources

Mechanical strength of silica fiber splices after exposure to extreme temperatures [PDF]

open access: yes, 2012
By using a combination of type-I and regenerated gratings, the mechanical strength of optical fiber splices after exposure to temperatures over 1300 C was characterized. Splice strength was found to decrease with temperature with a secondorder polynomial
Canning, John   +4 more
core   +1 more source

A structural design approach toward metallic glass with simultaneous tunable thermal expansion and high structural stiffness

open access: yesJournal of Materials Science: Materials in Engineering
Although metallic glasses (MGs) possess relatively low thermal expansion coefficient (α) compared to their crystalline counterparts due to the existence of free volume, their α-values are still too large to meet the demands of practical application. Here,
Yunhao Zhang   +4 more
doaj   +1 more source

Simulation and Experimental Validation of the Hot Embossing Process of Poly(lactic-co-glycolic acid) Microstructures

open access: yesInternational Journal of Polymer Science, 2015
The microstructures were fabricated by hot embossing method using biodegradable material PLGA poly(lactic-co-glycolic acid), to serve as the drug carriers in the drug delivery system.
Xiaopeng Wang, Wei Li, Tianning Chen
doaj   +1 more source

Synchronization of many nano-mechanical resonators coupled via a common cavity field [PDF]

open access: yes, 2011
Using amplitude equations, we show that groups of identical nano-mechanical resonators, interacting with a common mode of a cavity microwave field, synchronize to form a single mechanical mode which couples to the cavity with a strength dependent on the ...
A. Pikovsky   +8 more
core   +2 more sources

Measurement Research of Motorized Spindle Dynamic Stiffness under High Speed Rotating

open access: yesShock and Vibration, 2015
High speed motorized spindle has become a key functional unit of high speed machine tools and effectively promotes the development of machine tool technology.
Xiaopeng Wang, Yuzhu Guo, Tianning Chen
doaj   +1 more source

Home - About - Disclaimer - Privacy