Results 21 to 30 of about 1,089,942 (311)

Different Modes of Combustion Wave on a Lattice Burner

open access: yesMathematics, 2022
The stabilization of a planar premixed flame front on a lattice (porous) burner is considered. The developed model captures all the important features of the phenomenon, while also admitting qualitative analytical investigation.
Vasily B. Novozhilov   +2 more
doaj   +1 more source

Analytical Model for the Molecular Ionization Energy in an External Electric Field. [PDF]

open access: yesJ Phys Chem Lett
A model for the molecular ionization energy in an applied electric field is presented based on a perturbation expansion in the electric field. The leading term arises from the Frenkel approach, which is the same for all molecules, normally used in the ...
Åstrand PO.
europepmc   +2 more sources

General Analytical Model of Magnet Average Eddy-Current Volume Losses for Comparison of Multi-phase PM Machines with Concentrated Winding [PDF]

open access: yes, 2014
this paper studies magnet eddy-current losses in permanent magnet (PM) machines with concentrated winding. First of all, space harmonics of magnetomotive force (MMF) and their influence on magnet losses in electrical machines are investigated.
LEGRANGER, Jerome   +2 more
core   +1 more source

Bi-directional regulation of cartilage metabolism by inhibiting BET proteins—analysis of the effect of I-BET151 on human chondrocytes and murine joints

open access: yesJournal of Orthopaedic Surgery and Research, 2018
Background Proinflammatory cytokines, which can upregulate the expression of matrix-degrading enzymes in chondrocytes, play important roles in the development of osteoarthritis.
Jin Dai   +14 more
doaj   +1 more source

Advanced Methodologies on Design and Control for Linear Induction Machine and Drive Adopted to Urban Transportation

open access: yesCES Transactions on Electrical Machines and Systems, 2022
Urban transportation, e.g., linear metro, driven by linear induction machine (LIM) has been paid more attention by both academia and industry recently for its direct thrust drive, strong climbing ability, flexible line choice, smaller cross section area,
Wei Xu   +8 more
doaj   +1 more source

Comparative Investigation of Torque-ripple Suppression Control Strategies Based on Torque-sharing Function for Switched Reluctance Motor

open access: yesCES Transactions on Electrical Machines and Systems, 2022
Torque ripple is an inherent property of switched reluctance motor (SRM), which seriously affects the control performance and application of the motor. This paper proposes two torque ripple suppression control strategies based on torque-sharing function (
Tong Chen, Guoyang Cheng
doaj   +1 more source

Three-dimensional Analytical Modeling of Axial Flux Permanent Magnets Maglev Motor

open access: yesCES Transactions on Electrical Machines and Systems, 2022
The three-dimensional(3D) analytical model of the magnetic field in an Axial Flux Permanent Magnets Maglev Motor(AFPMMM) is proposed and investigated the influence of the structural parameters on electromagnetic characteristics. Firstly, the topology and
Wei Qin, Gang Lv, Yuhua Ma
doaj   +1 more source

ANALYTIC MODELING OF STARSHADES [PDF]

open access: yesThe Astrophysical Journal, 2011
External occulters, otherwise known as starshades, have been proposed as a solution to one of the highest priority yet technically vexing problems facing astrophysics - the direct imaging and characterization of terrestrial planets around other stars. New apodization functions, developed over the past few years, now enable starshades of just a few tens
openaire   +2 more sources

Predicting Dissolution Kinetics of Tricalcium Silicate Using Deep Learning and Analytical Models

open access: yesAlgorithms, 2022
The dissolution kinetics of Portland cement is a critical factor in controlling the hydration reaction and improving the performance of concrete. Tricalcium silicate (C3S), the primary phase in Portland cement, is known to have complex dissolution ...
Taihao Han   +5 more
doaj   +1 more source

Analytical models of temporal characteristics of the intercepting speech information’s processes and monitoring the speech information’s protection from leakage through technical channels at informatization facilities

open access: yesИзвестия высших учебных заведений. Поволжский регион:Технические науки, 2022
Background. The object of the research is the interception of speech information’ processes by means of acoustic speech reconnaissance and the processes of monitoring its protection from such threats.
E.A. Man'kov
doaj   +1 more source

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