Results 1 to 10 of about 4,212,854 (223)

Calculation of pipeline branches with considering nonlinearity of elastic base [PDF]

open access: yesE3S Web of Conferences, 2023
When calculating systems on an elastic foundation, the generalized Reissner-Vlasov-Filomenko-Borodich model is traditionally used. Such models are acceptable for small displacements. For large displacements, there are some deviations from reality.
Ostonov T. K.   +5 more
doaj   +1 more source

Nuclear Reactivity Calculation with Reduction of Fluctuations

open access: yesInternational Journal of Technology, 2023
This article presents a study based on a series of numerical experiments. It demonstrates the possibility of reducing fluctuations in the calculation of reactivity using the second Bernoulli number based on the approximation of the Euler-Maclaurin ...
Daniel Suescun-Diaz   +2 more
doaj   +1 more source

Optimization of Geometrical Parameters of Fire Wood Fluidized Bed Burner [PDF]

open access: yesProblems of the Regional Energetics, 2021
The aim of this work is to determine the dynamics of the firewood burning-out in the fluidized bed burners and to select the optimal constructive characteristics of the burner of the fluidized bed, which allows decreasing the unburnt fuel particles to be
Pivnenko Y.   +4 more
doaj   +1 more source

Design of Computational Models for Hydroturbine Units Based on a Nonparametric Regression Approach with Adaptation by Evolutionary Algorithms

open access: yesComputation, 2021
This article deals with the problem of designing regression models for evaluating the parameters of the operation of complex technological equipment—hydroturbine units.
Vladimir Viktorovich Bukhtoyarov   +1 more
doaj   +1 more source

The Ability of a Soil Temperature Gradient-Based Methodology to Detect Leaks from Pipelines in Buried District Heating Channels

open access: yesEnergies, 2021
We carried out several numerical experiments to analyze how different boundary conditions affect the ability to detect small pipeline leaks. Our method is based on determining the soil temperature gradient above a buried district heating channel.
Matjaž Perpar, Zlatko Rek
doaj   +1 more source

Special features of assessing the strength of nuclear reactor equipment under dynamic loads

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2023
The paper presents tasks and approaches to their solutions in assessing vibration strength and dynamic safety of marine reactor equipment (for example: pumps, control driven rod mechanisms).
K. A. Lonin   +4 more
doaj   +1 more source

An Armijo-Type Hard Thresholding Algorithm for Joint Sparse Recovery

open access: yesIEEE Access, 2021
Joint sparse recovery (JSR) in compressed sensing simultaneously recovers sparse signals with a common sparsity structure from their multiple measurement vectors obtained through a common sensing matrix.
Lili Pan, Xunzhi Zhu
doaj   +1 more source

1991 crop research : Klamath Agricultural Experiment Station [PDF]

open access: yes
The Klamath Experiment Station (KES) staff are pleased to present the annual report on KES research programs conducted in 1991. This is the fifth in a current series of special reports dating back to 1987.
Oregon State University. Agricultural Experiment Station   +2 more
core   +6 more sources

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