Results 31 to 40 of about 6,425,638 (291)

Bayesian Implications for the Primordial Black Holes from NANOGrav’s Pulsar-Timing Data Using the Scalar-Induced Gravitational Waves [PDF]

open access: yesUniverse, 2022
Assuming that the common-spectrum process in the NANOGrav 12.5-year dataset has an origin of scalar-induced gravitational waves, we study the enhancement of primordial curvature perturbations and the mass function of primordial black holes, by performing
Zhi-Chao Zhao, Sai Wang
semanticscholar   +1 more source

Reduced-order modelling of vortex-induced vibration of catenary riser [PDF]

open access: yes, 2009
A new reduced-order model capable of analyzing the vortex-induced vibration of catenary riser in the ocean current has been developed. This semi analytical-numerical approach is versatile and allows for a significant reduction in computational effort for
O' Brien, P.   +2 more
core   +4 more sources

MESHING PERFORMANCE ANALYSIS OF FACE ROLLER ENVELOPING HOURGLASS WORM DIRVE

open access: yesJixie qiangdu, 2022
Based on the research of worm gear pair and double roller enveloping hourglass worm without backlash, a new type of worm drive with end roller enveloping is proposed.
WANG XuDong, LIU ZaiXin, LI LingYu
doaj  

Dynamics and phase separation of active Brownian particles on curved surfaces and in porous media

open access: yesPhysical Review Research, 2023
The effect of curvature on an ensemble of repulsive active Brownian particles (ABPs) moving on a spherical surface is studied. Surface curvature strongly affects the dynamics of ABPs, as it introduces a new time scale τ=R/v_{0}, with curvature radius R ...
Priyanka Iyer   +3 more
doaj   +1 more source

Excessive mechanical stress-induced intervertebral disc degeneration is related to Piezo1 overexpression triggering the imbalance of autophagy/apoptosis in human nucleus pulpous

open access: yesArthritis Research & Therapy, 2022
Background Mechanical stress plays a crucial role in the pathogenesis of intervertebral disc degeneration (IVDD). The mechanosensitive Piezo1 ion channel can sense the changes in mechanical stress and convert the mechanical signals into chemical signals.
Sheng Shi   +5 more
semanticscholar   +1 more source

Ricci and Bianchi identities for h-normal Γ-linear connections on J1(T,M)

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
The aim of this paper is to describe the local Ricci and Bianchi identities of an h-normal Γ-linear connection on the first-order jet fibre bundle J1(T,M).
Mircea Neagu
doaj   +1 more source

A Computational Study to Find the Vibrational Modes Connected with Specific Molecular Structures of Calculated Compound [PDF]

open access: yesInternational Journal of New Chemistry, 2019
The purpose of this research is to provide a deeper understanding of the planar high- symmetry configuration instability. In the ideal case, the distortion corresponds to the movements of nuclei along normal modes that belong to non-totally symmetric ...
Golrokh Mahmoudzadeh
doaj   +1 more source

Comparison of the Reactive Scalar Gradient Evolution between Homogeneous MILD Combustion and Premixed Turbulent Flames

open access: yesEnergies, 2021
Moderate or intense low-oxygen dilution (MILD) combustion is a novel combustion technique that can simultaneously improve thermal efficiency and reduce emissions.
Hazem S.A.M. Awad   +3 more
doaj   +1 more source

Algebraicity of Induced Riemannian Curvature Tensor on Lightlike Warped Product Manifolds

open access: yesJournal of Applied Mathematics and Physics, 2019
Lightlike warped product manifolds are considered in this paper. The geometry of lightlike submanifolds is difficult to study since the normal vector bundle intersects with the tangent bundle.
D. Ndayirukiye   +3 more
semanticscholar   +1 more source

Mean curvature flow with triple junctions in higher space dimensions [PDF]

open access: yes, 2012
We consider mean curvature ow of n-dimensional surface clusters. At (
Garcke, Harald   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy