Results 21 to 30 of about 1,879,284 (292)

Friedel oscillations in a Luttinger liquid with long-range interactions [PDF]

open access: yes, 2001
We introduce a path-integral approach that allows to compute charge density oscillations in a Luttinger liquid with impurities. We obtain an explicit expression for the envelope of Friedel oscillations in the presence of arbitrary electron-electron ...
Baik, Sanghum   +2 more
core   +8 more sources

Conductance Fluctuations, Weak Localization, and Shot Noise for a Ballistic Constriction in a Disordered Wire [PDF]

open access: yes, 1994
This is a study of phase-coherent conduction through a ballistic point contact with disordered leads. The disorder imposes mesoscopic (sample-to-sample) fluctuations and weak-localization corrections on the conductance, and also leads to time-dependent ...
Beenakker, C. W. J., Melsen, J. A.
core   +4 more sources

Analysis of initial crack path in fretting fatigue [PDF]

open access: yesFracture and Structural Integrity, 2016
The initial crack path is analysed in a fretting fatigue test with cylindrical contact, where there is a stress gradient and a multiaxial and non-proportional stress state. For this, a cylindrical pad is pressed, with a constant normal load, N, against a
J. Vazquez   +3 more
doaj   +2 more sources

Coordinate-invariant Path Integral Methods in Conformal Field Theory [PDF]

open access: yes, 2006
We present a coordinate-invariant approach, based on a Pauli-Villars measure, to the definition of the path integral in two-dimensional conformal field theory. We discuss some advantages of this approach compared to the operator formalism and alternative
ANDRÉ VAN TONDER   +5 more
core   +1 more source

Contact structures, deformations and taut foliations [PDF]

open access: yes, 2015
Using deformations of foliations to contact structures as well as rigidity properties of Anosov foliations we provide infinite families of examples which show that the space of taut foliations in a given homotopy class of plane fields is in general not ...
Bowden, J.
core   +3 more sources

Comparative Rolling Contact Behavior of Two APS Coatings with Different Matrix [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
In this study we analyzed the rolling contact fatigue behavior of two types of coatings made by thermal coating, by the method of atmospheric plasma spraying (APS) from two commercially available powders: Ni5Al5Mo and Al2O3 – 13 TiO2. The contact fatigue
D. Chicet   +3 more
doaj   +1 more source

Optimization of Contact Path and Transmission Error based on Installation and Adjustment of Spiral Bevel Gear

open access: yesJixie chuandong, 2022
The contact path and transmission error are key indexes for evaluating the meshing performance of spiral bevel gears. The contact path is offset by misalignment,and symmetry and fluctuation amplitude of transmission error change.
Mingkang Wang   +4 more
doaj  

Thermal contact conductance between additively manufactured carbon fiber reinforced thermoplastic composite: An experimental study

open access: yesCase Studies in Thermal Engineering, 2023
As the additive manufacturing provides an advanced method for fabricating polymeric composite components in thermal engineering applications, the thermal contact conductance (TCC) between the contact composites can become an important problem.
Tian Zhou   +5 more
doaj   +1 more source

Hydrodynamics of the Binary Contact Path Process

open access: yes, 2019
In this paper we are concerned with the binary contact path process introduced in \cite{Gri1983} on the lattice $\mathbb{Z}^d$ with $d\geq 3$. Our main result gives a hydrodynamic limit of the process, which is the solution to a heat equation. The proof of our result follows the strategy introduced in \cite{kipnis+landim99} to give hydrodynamic limit ...
Xue, Xiaofeng, Zhao, Linjie
openaire   +2 more sources

Elastic-contact-based tool-path planning for free-form surface in belt grinding

open access: yesAdvances in Mechanical Engineering, 2019
As for the fact that the majority of current researches take the technology of tool-path planning for free-form surface only as a geometrical problem, which is not suitable for belt grinding because of the elastic deformation of the grinding belt that ...
Junde Qi, Bing Chen
doaj   +1 more source

Home - About - Disclaimer - Privacy