Results 71 to 80 of about 3,431,136 (191)

DEFORMATION MECHANISM OF STRUCTURAL BODY COMPRESSION

open access: yesНаука и техника, 2018
In order to prepare soil for sowing of agricultural crops it is necessary to have a number of engineering structures that ensure its qualitative treatment and protection from erosion.
О. N. Protasenya   +2 more
doaj   +1 more source

Spin current in an electron waveguide tunnel-coupled to topological insulator

open access: yes, 2012
We show that electron tunneling from edge states in two-dimensional topological insulator into a parallel electron waveguide leads to the appearance of spin-polarized current in the waveguide.
Sablikov, Vladimir A.   +1 more
core   +1 more source

Contact interactions between particle worldlines [PDF]

open access: yesJournal of High Energy Physics, 2016
We construct contact interactions for bosonic and fermionic point particles. We first relate the resulting theories to classical electrostatics by taking functional averages over worldlines whose endpoints are fixed to charged particles. Counting those paths which pass through a space-time point $x^μ$ gives the static electric field at that point ...
openaire   +4 more sources

Residual stresses caused by static and dynamic contact interaction of composite plate and steel spherical indenter

open access: yesFracture and Structural Integrity
A new approach has been developed and implemented to determine the main components of residual stresses that arise as a result of the contact interaction of a spherical indenter and a flat surface of composite plate made.
Sviatoslav Eleonsky, Vladimir Pisarev
doaj   +1 more source

DETERMINATION OF CONTACT STRESSES IN THE RAILS P50, WHICH ARE OPERATED IN THE METRO

open access: yesNauka ta progres transportu, 2015
Purpose. In the research one should do: 1) to determine a 3-d stress-strain state of the rail head in contact with the rolling wheels; 2) to analyze different forms of contact interaction; 3) to obtain the data necessary to calculate the durability of ...
O. V. Agarkov, R. M. Yosufovuch
doaj   +1 more source

Modern Condition, Analysis of Work and Prospects of Development of Intermediate Rail Fastenings

open access: yesМеханика машин, механизмов и материалов, 2019
The object of the study is intermediate rail fastenings used to attach rails to sleepers. The monitoring of technical characteristics and economic indicators of structures of domestic and foreign production with the analysis of their work is given.
Dmitry I. Boсhkaryov   +1 more
doaj  

FILTRATION AND MICRO-RHEOLOGICAL ANOMALIES OF POLYMER DRILLING SOLUTIONS

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2019
The article pays attention to the fact that biopolymer drilling solutions without a solid phase acquire viscoelastic properties in a porous medium that are not fixed by means of standard drilling rheometry.
O. F. Kondrashev
doaj   +1 more source

Rich Contacts: Corpus-Based Convolution of Audio Contact Gestures for Enhanced Musical Expression [PDF]

open access: yes, 2014
We propose ways of enriching the timbral potential of gestural sonic material captured via piezo or contact microphones, through latency-free convolution of the microphone signal with grains from a sound corpus.
Harker, Alexander   +2 more
core   +1 more source

Contact interaction

open access: yes, 2007
Many research fields are concerned with contacts between objects or between a human and an object. As a first generality, one can say that contact makes the distinction between existence or absence of short distance physical interaction. Furthermore, the notion of contact means a short distance interaction between two physical entities.
Couroussé, Damien, Gil, Jorge Juan
openaire   +1 more source

Close contacts and noncovalent interactions in crystals

open access: yesFaraday Discussions, 2017
Close contacts, defined as interatomic separations less than the sum of the respective van der Waals radii, are commonly invoked to identify attractive nonbonded interactions in crystal lattices. While this is often effective, it can also be misleading because (a) there are significant uncertainties associated with van der Waals radii, and (b) it may ...
Murray, Jane S.   +2 more
openaire   +3 more sources

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