Results 71 to 80 of about 172,917 (327)

Study on Failure Mechanisms and Mechanical Properties of Rock Masses with Discontinuous Joints Based on 3D Printing Technology

open access: yesApplied Sciences
Within natural rock masses, discontinuous joints are more prevalent than continuous joints. Discontinuous joints refer to non-persistent structural planes separated by intact rock bridges and can be quantified by the continuity coefficient KA.
Yanshuang Yang   +3 more
doaj   +1 more source

Effect of Synthetic Discrete Fibers on the Properties of Epoxy Composites for Protective Means of Transportation Coatings [PDF]

open access: yesЖурнал нано- та електронної фізики, 2017
The results of studies of the effect of synthetic discontinuous fibers on physico-mechanical and tribological properties of epoxy composites. Analysis of the dependence of the temperature and the coefficient of friction of epoxy composites by fiber ...
A.V. Buketov   +2 more
doaj   +1 more source

A Class of Backward Doubly Stochastic Differential Equations with Discontinuous Coefficients [PDF]

open access: yes, 2010
In this work the existence of solutions of one-dimensional backward dou- bly stochastic differential equations (BDSDEs in short) where the coefficient is left-Lipschitz in y (may be discontinuous) and Lipschitz in z is studied.
Shi, Yufeng, Zhu, Qingfeng
core  

Smoluchowski-Kramers approximation in the case of variable friction

open access: yes, 2012
We consider the small mass asymptotics (Smoluchowski-Kramers approximation) for the Langevin equation with a variable friction coefficient. The limit of the solution in the classical sense does not exist in this case.
G Allaire   +13 more
core   +1 more source

Pixelation‐Free, Monolithic Iontronic Pressure Sensors Enabling Large‐Area Simultaneous Pressure and Position Recognition via Machine Learning

open access: yesAdvanced Functional Materials, EarlyView.
A pixelation‐free, monolithic iontronic pressure sensor enables simultaneous pressure and position sensing over large areas. AC‐driven ion release generates spatially varying impedance pathways depending on the pressure. Machine learning algorithms effectively decouple overlapping pressure–position signals from the multichannel outputs, achieving high ...
Juhui Kim   +10 more
wiley   +1 more source

Thermal performance of condensation phase change in the shell side of discontinuous helical baffle heat exchanger

open access: yesCase Studies in Thermal Engineering
The discontinuous helical baffle heat exchanger is widely used in industrial applications due to its high heat transfer efficiency and uniform flow distribution.
Zhengfeng Shuai   +7 more
doaj   +1 more source

A Provably Stable Discontinuous Galerkin Spectral Element Approximation for Moving Hexahedral Meshes

open access: yes, 2015
We design a novel provably stable discontinuous Galerkin spectral element (DGSEM) approximation to solve systems of conservation laws on moving domains.
Bohm, Marvin   +3 more
core   +1 more source

Nanolayer‐Encapsulated Stretchable Liquid‐Metal Sheets for Thermal Management

open access: yesAdvanced Functional Materials, EarlyView.
A stretchable liquid metal sheet with both high thermal conductivity and mechanical flexibility is developed. Its trilayer structure, comprising copper‐particle‐dispersed gallium liquid metal encapsulated by styrene‐butadiene‐styrene nanosheets, shows 40.4 W m−1 K−1 conductivity, elongation exceeding 200%, and retention of 96% of its initial ...
Daisuke Kuse   +16 more
wiley   +1 more source

Investigating the Mechanical Properties and Water Permeability of Recycled Pervious Concrete Using Three Typical Gradation Schemes

open access: yesBuildings
This study aims to investigate the influence of three typical gradation schemes, including continuous gradation, discontinuous gradation, and single gradation, on the mechanical properties and water permeability of pervious concrete using recycled coarse
Hongjie Lv   +5 more
doaj   +1 more source

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