Results 21 to 30 of about 8,352,481 (299)

High order second derivative diagonally implicit multistage integration methods for ODEs

open access: yesMathematical Modelling and Analysis, 2023
Construction of second derivative diagonally implicit multistage integration methods (SDIMSIMs) as a subclass of second derivative general linear methods with Runge–Kutta stability property requires to generate the corresponding conditions depending of ...
Mohammad Sharifi   +3 more
doaj   +1 more source

Mathematical modelling of rolling element bearings fault for the diagnosis in the gearbox-induction machine [PDF]

open access: yes, 2020
Inner race fault in bearing suspension is relatively the common fault in induction motors coupled with a gearbox, their detection is feasible by vibration monitoring of characteristic bearing frequencies.
Djamel Benazouz, Azeddine Ratni
core   +1 more source

Experimental validation of a distribution theory based analysis of the effect of manufacturing tolerances on permanent magnet synchronous machines

open access: yesAIP Advances, 2017
An experimental study on the effect of permanent magnet tolerances on the performances of a Tubular Linear Ferrite Motor is presented in this paper. The performances that have been investigated are: cogging force, end effect cogging force and generated ...
V. Boscaino   +6 more
doaj   +1 more source

A Simple Operating Strategy of Small-Scale Battery Energy Storages for Energy Arbitrage under Dynamic Pricing Tariffs

open access: yesEnergies, 2015
Price arbitrage involves taking advantage of an electricity price difference, storing electricity during low-prices times, and selling it back to the grid during high-prices periods.
Enrico Telaretti   +2 more
doaj   +1 more source

Families of Ramanujan-Type Congruences Modulo 4 for the Number of Divisors

open access: yesAxioms, 2022
In this paper, we explore Ramanujan-type congruences modulo 4 for the function σ0(n), counting the positive divisors of n. We consider relations of the form σ08(αn+β)+r≡0(mod4), with (α,β)∈N2 and r∈{1,3,5,7}.
Mircea Merca
doaj   +1 more source

Mathematical model of sarcoidosis [PDF]

open access: yesProceedings of the National Academy of Sciences, 2014
Significance Sarcoidosis is a disease involving abnormal collection of granulomas that develop in the lung and other organs. The origin of the disease is unknown, clinical data are very limited, and there is no current effective treatment.
Wenrui, Hao   +2 more
openaire   +2 more sources

Sustainability of the Renewable Energy Extraction Close to the Mediterranean Islands

open access: yesEnergies, 2017
The aim of this work is to explore the possibility of transitioning a fuel powered island to a renewable powered one. This transition is analyzed for the real MV/LV distribution system of the island of Pantelleria, in the Mediterranean Sea. Particularly,
Vincenzo Franzitta, Domenico Curto
doaj   +1 more source

Mathematical models for somite formation [PDF]

open access: yes, 2007
Somitogenesis is the process of division of the anterior–posterior vertebrate embryonic axis into similar morphological units known as somites. These segments generate the prepattern which guides formation of the vertebrae, ribs and other associated ...
Philip K. Maini   +12 more
core   +1 more source

Employing Microwave Graphene Field Effect Transistors for Infrared Radiation Detection

open access: yesIEEE Photonics Journal, 2018
In this work, we investigate the possibility of employing graphene field effect transistors, specifically designed for microwave applications, as infrared detectors for telecom applications.
Antonio Benfante   +10 more
doaj   +1 more source

Mathematical Modelling in Neuroendocrinology [PDF]

open access: yesJournal of Neuroendocrinology, 2008
In neuroendocrinology, mathematical modelling is about formalising our understanding of the behaviour of the complex biological systems with which we deal. Formulating our explanations mathematically ensures their logical consistency, and makes them open to structured analysis; it is a stringent test of their intellectual coherence.
G, Leng, D J, Macgregor
openaire   +2 more sources

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