Results 11 to 20 of about 17,188 (197)

Electrical resistivity of three-phase cracked rock-soil medium and its anisotropic changes caused by crack changes

open access: yesGeomatics, Natural Hazards & Risk, 2020
Electrical resistivity of sedimentary rock-soil is highly variable and governed mainly by a wide range of properties including resistivities of both solid matrix and fluid, cracks or pores, fluid saturation, and crack fabric (e.g.
Tao Xie, Qing Ye, Jun Lu
doaj   +1 more source

A Dielectric Elastomer Actuator-Driven Vibro-Impact Crawling Robot

open access: yesMicromachines, 2022
Over the last decade, many bio-inspired crawling robots have been proposed by adopting the principle of two-anchor crawling or anisotropic friction-based vibrational crawling.
Chuang Wu   +3 more
doaj   +1 more source

Positive solutions for nonparametric anisotropic singular solutions [PDF]

open access: yesOpuscula Mathematica
We consider an elliptic equation driven by a nonlinear, nonhomogeneous differential operator with nonstandard growth. The reaction has the combined effects of a singular term and of a "superlinear" perturbation.
Nikolaos S. Papageorgiou   +2 more
doaj   +1 more source

THE PROBLEM OF CRACK OPENING WIDTH AND STIFFNESS OF REINFORCED CONCRETE STRUCTURES, BUILDINGS AND CONSTRUCTIONS

open access: yesInternational Journal for Computational Civil and Structural Engineering, 2023
The article defines the main results for the development of reinforced concrete mechanics. In the isotropic medium between the cracks is used "first object - flows-blocks", "second object - main cracks" and the effect of reinforced concrete, the ...
Vladimir Kolchunov
doaj   +1 more source

Stereotactic Ablative Radiotherapy of Ventricular Tachycardia Using Tracking: Optimized Target Definition Workflow

open access: yesFrontiers in Cardiovascular Medicine, 2022
Background and PurposeStereotactic arrhythmia radioablation (STAR) has been suggested as a promising therapeutic alternative in cases of failed catheter ablation for recurrent ventricular tachycardias in patients with structural heart disease. Cyberknife®
Pavel Dvorak   +6 more
doaj   +1 more source

A Biomimetic Fish Fin-Like Robot Based on Textile Reinforced Silicone

open access: yesMicromachines, 2020
The concept of merging pre-processed textile materials with tailored mechanical properties into soft matrices is so far rarely used in the field of soft robotics.
Sascha Pfeil   +6 more
doaj   +1 more source

Detection of oriented fractal scaling components in anisotropic two-dimensional trajectories

open access: yesScientific Reports, 2020
We propose a novel class of mixed fluctuations with different orientations and fractal scaling features as a model for anisotropic two-dimensional (2D) trajectories hypothesized to appear in complex systems.
Ivan Seleznov   +7 more
doaj   +1 more source

Sharp estimates on the first Dirichlet eigenvalue of nonlinear elliptic operators via maximum principle

open access: yesAdvances in Nonlinear Analysis, 2018
In this paper, we study optimal lower and upper bounds for functionals involving the first Dirichlet eigenvalue λF⁢(p,Ω){\lambda_{F}(p,\Omega)} of the anisotropic p-Laplacian ...
Della Pietra Francesco   +2 more
doaj   +1 more source

On Physical Vapor Deposition of Organic Semiconductor CuPc Thin Films in High Gravity

open access: yesEurasian Chemico-Technological Journal, 2009
Thin organic films of p-type semiconductor copper phthalocyanine (CuPc, C32H16N8Cu) deposited by vacuum evaporation on glass substrates at different gravity conditions, from 50 g to –50 g (g – denotes the terrestrial gravity acceleration) in a ...
Kh.S. Karimov   +7 more
doaj   +1 more source

Relationship Between the Orientation of Maximum Permeability and Intermediate Principal Stress in Fractured Rocks

open access: yesWater Resources Research, 2018
Flow and transport properties of fractured rock masses are a function of geometrical structures across many scales. These structures result from physical processes and states and are highly anisotropic in nature.
Philipp S. Lang   +3 more
doaj   +1 more source

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