Results 21 to 30 of about 531,079 (147)

Transport signatures of an Andreev molecule in a quantum dot -- superconductor -- quantum dot setup [PDF]

open access: yesBeilstein J. Nanotechnol. 2019, 10, 363-378, 2018
Hybrid devices combining quantum dots with superconductors are important building blocks of conventional and topological quantum-information experiments. A requirement for the success of such experiments is to understand the various tunneling-induced non-local interaction mechanisms, namely, crossed Andreev reflection, elastic cotunneling, and direct ...
arxiv   +1 more source

Transport in Graphene: Ballistic or Diffusive? [PDF]

open access: yesPhys. Rev. B 88, 125415 (2013), 2012
We investigate the transport of electrons in disordered and pristine graphene devices. Fano shot noise, a standard metric to assess the mechanism for electronic transport in mesoscopic devices, has been shown to produce almost the same magnitude ($\approx 1/3$) in ballistic and diffusive graphene devices and is therefore of limited applicability.
arxiv   +1 more source

THE PROBLEM OF ENSURING UNINTERRUPTED EXPLOITATION OF WELLS ON THE FIELDS AT THE LATE STAGE OF OPERATION

open access: yesВестник Северо-Кавказского федерального университета, 2022
The design of a ramjet wellhead choke, with automatic cleaning throttle channel, which can set in the axial channel of pipe at the wellhead. When the differential pressure increase, which occurs in the case of the axial channel nozzle clogging with ...
Yulianna O. Sizova   +2 more
doaj  

Optimal design and performance evaluation of tuned mass damper inerter in building structures

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2021
This paper concerns the numerical performance evaluation of multi-degree-of-freedom systems equipped with Tuned Mass Dampers-Inerter (TMDIs); a passive control device used for the mitigation of mechanical vibrations induced by dynamic loads.
Daniel Caicedo Diaz   +2 more
doaj   +1 more source

DEVICE AND TECHNOLOGY OF CONTINUOUS WELL FLUSHING

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2023
Link for citation: Tretyak A.Ya., Litkevich Yu.F., Kruglova T.N. Device and technology of continuous well flushing. Bulletin of the Tomsk Polytechnic University. Geo Аssets Engineering, 2023, vol. 334, no. 5, рр.181-188. In Rus. The relevance research
Alexander Ya. Tretyak   +2 more
doaj   +1 more source

An Improved Differential Evolution Adaptive Fuzzy PID Control Method for Gravity Measurement Stable Platform

open access: yesSensors, 2023
In the platform gravimeter, the stabilization accuracy of the gravimetric stabilization platform is crucial to improve the accuracy of gravity value measurements due to its uncertainties, such as mechanical friction, inter-device coupling interference ...
Xin Chen   +3 more
doaj   +1 more source

Intra‐aortic balloon pump: is the technique really outdated?

open access: yesESC Heart Failure, 2020
Aims Intra‐aortic balloon pump (IABP) utilization was expected to be quickly abandoned following the IABP‐shock trial and its class III, level B recommendation in the 2016 European Society of Cardiology (ESC) guidelines.
Mariama Akodad   +4 more
doaj   +1 more source

Impact of controlled extensional flow during extrusion of PP, PVDF and LDPE

open access: yesPolímeros, 2022
The structure and properties of semi-crystalline polymers can be drastically tailored by extensional flows. In this work, polypropylene (PP), Polyvinylidene fluoride (PVDF) and Low Density Polyethylene (LDPE) were melt extruded through a sequence of ...
Marcel Andrey de Goes   +2 more
doaj   +1 more source

Impact of Impurities of Polypropylene and Silicone Inclusions on the Properties of Polyamide 6.6 Regranulates Derived from the Re-Processing of Airbags [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
The following article presents the results of selected properties of regranulates of polyamide 6.6, regranules of polyamide contaminated with polypropylene and regranules of polyamide contaminated with silicone.
T. Stachowiak
doaj   +1 more source

The Prytz connections [PDF]

open access: yesarXiv, 2023
The Prytz planimeter is a simple mechanical device that historically was used to approximate areas of plane regions. In this article, we present a mathematical description and analysis of the planimeter in terms of sub-Riemannian geometry and in terms of connections and horizontal lifts -- central concepts in differential geometry.
arxiv  

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