Results 31 to 40 of about 2,246,468 (294)

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

Axioms, 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 models for dispersive electromagnetic waves: an overview [PDF]

, 2017
In this work, we investigate mathematical models for electromagnetic wave propagation in dispersive isotropic media. We emphasize the link between physical requirements and mathematical properties of the models.
Cassier, Maxence, Joly, Patrick, Kachanovska, Maryna   +2 more
core   +5 more sources

Employing Microwave Graphene Field Effect Transistors for Infrared Radiation Detection

IEEE 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, Marco A. Giambra, Riccardo Pernice, Salvatore Stivala, Enrico Calandra, Antonino Parisi, Alfonso C. Cino, Simone Dehm, Romain Danneau, Ralph Krupke, Alessandro C. Busacca   +10 more
doaj   +1 more source

Mathematical methods and models for radiation carcinogenesis studies [PDF]

, 1986
Research on radiation carcinogenesis requires a twofold approach. Studies of primary molecular lesions and subsequent cytogenetic changes are essential, but they cannot at present provide numerical estimates of the risk of small doses of ionizing ...
A.M. Kellerer, Barlow, Bernoulli, Breslow, Broerse, Broerse, Chmelevsky, Chmelevsky, Chmelevsky, Groer, Hoel, Hulse, Kalbfleisch, Kaplan, Kellerer, Lafuma, Mole, National Academy of Sciences, National Research Council, Nelson, Recommendations of the International Commission on Radiological Protection, Rossi, Shellabarger, Shellabarger, Shellabarger, UNSCEAR-Report, Whittemore   +25 more
core   +1 more source

CMOS circuit implementations for neuron models [PDF]

, 1990
The mathematical neuron basic cells used as basic cells in popular neural network architectures and algorithms are discussed. The most popular neuron models (without training) used in neural network architectures and algorithms (NNA) are considered ...
Linares Barranco, Bernabé, Rodríguez Vázquez, Ángel Benito, Sánchez Sinencio, Edgar   +2 more
core   +1 more source

Recovery Capabilities of Rateless Codes on Simulated Turbulent Terrestrial Free Space Optics Channel Model

International Journal of Antennas and Propagation, 2013
Free Space Optics (FSO) links are affected by several impairments: optical turbulence, scattering, absorption, and pointing. In particular, atmospheric optical turbulence generates optical power fluctuations at the receiver that can degrade ...
A. Andò, S. Mangione, L. Curcio, S. Stivala, G. Garbo, R. Pernice, A. C. Busacca   +6 more
doaj   +1 more source

Assessing the Robustness of Thermoeconomic Diagnosis of Fouled Evaporators: Sensitivity Analysis of the Exergetic Performance of Direct Expansion Coils

Entropy, 2016
Thermoeconomic diagnosis of refrigeration systems is a pioneering approach to the diagnosis of malfunctions, which has been recently proven to achieve good performances for the detection of specific faults. Being an exergy-based diagnostic technique, its
Antonio Piacentino, Pietro Catrini
doaj   +1 more source

Solutions for Some Mathematical Physics Problems Issued from Modeling Real Phenomena: Part 1

Axioms, 2023
This paper brings together methods to solve and/or characterize solutions of some problems of mathematical physics equations involving p-Laplacian and p-pseudo-Laplacian.
Irina Meghea
doaj   +1 more source

On the Reliability of Optimization Results for Trigeneration Systems in Buildings, in the Presence of Price Uncertainties and Erroneous Load Estimation

Energies, 2016
Cogeneration and trigeneration plants are widely recognized as promising technologies for increasing energy efficiency in buildings. However, their overall potential is scarcely exploited, due to the difficulties in achieving economic viability and the ...
Antonio Piacentino, Roberto Gallea, Pietro Catrini, Fabio Cardona, Domenico Panno   +4 more
doaj   +1 more source

An experimental search for a correlation between outdoor 222Rn concentration and 210Pb activity in air particulate samples [PDF]

Nuclear Technology and Radiation Protection, 2018
This work was aimed to search for a correlation between outdoor 222Rn air concentration and 210Pb activity in particulate samples collected on a filter.
Tomarchio Elio A.G.
doaj   +1 more source