Results 21 to 30 of about 24,909,033 (334)

Some aspects of winter wheat productivity

open access: yesНовые технологии, 2021
The article presents studies carried out in 2018–2019 and 2019–2020 in the southern foothill zone of the North-West Caucasus in the fields of the selection and primary seed produc- tion department of the Adygh Research Institute of Agriculture.
M. V. Kuzenko
doaj   +1 more source

An overview of last decade’s developments in RayXpert®, a 3D Monte Carlo code

open access: yesEPJ Nuclear Sciences & Technologies
This article provides an overview of the developments made over the last 10 years within RayXpert®, a CAD-based geometry 3D Monte Carlo software developed by TRAD – Tests & Radiations.
Dray Nicolas   +4 more
doaj   +1 more source

Numerical Modeling of the Electric Field and the Potential Distributions in Heterogeneous Cavities inside XLPE Power Cable Insulation [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2016
The XLPE power cable is easily affected by heterogeneous cavities: air void cavity, vented and bow-tie water trees. In this paper, we present a numerical modeling of this cable.
KHOUILDI Emna   +2 more
doaj  

Frequency Instability Measurement Device Based on the Pulse Coincidence Principle

open access: yesVìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2019
Context. The task of rapid and accurate measurement of the dynamic characteristics of modern signal sources with a frequency output, in particular, the short-time frequency instability function, calls for refining measurement techniques with account of ...
A. I. Verveyko   +3 more
doaj   +1 more source

Tests of Gaussianity

open access: yes, 2003
We review two powerful methods to test the Gaussianity of the cosmic microwave background (CMB): one based on the distribution of spherical wavelet coefficients and the other on smooth tests of goodness-of-fit.
A.M Aliaga   +19 more
core   +1 more source

Testing refinements by refining tests [PDF]

open access: yes, 1998
One of the potential benefits of formal methods is that they offer the possibility of reducing the costs of testing. A specification acts as both the benchmark against which any implementation is tested, and also as the means by which tests are generated.
C. Wezeman   +15 more
core   +3 more sources

Tests of time-invariance [PDF]

open access: yes, 2010
Quantiles provide a comprehensive description of the properties of a variable and tracking changes in quantiles over time using signal extraction methods can be informative.
Busetti, F, Harvey, AC
core   +1 more source

THE ASSESSMENT OF THE OPERATIONAL ENERGY PERFORMANCE OF THE HYDROPOWER UNITS FROM THE DRAGAN-IAD [PDF]

open access: yesJournal of Sustainable Energy, 2023
This work aims to study the performances of the hydro aggregates in the Drăgan-Iad Development, focusing on determining the performances in order to make them more efficient. The objective of the tests was to evaluate the real possibilities of operation
NEGREA D.
doaj  

Alternative conducted immunity tests [PDF]

open access: yes, 2016
Conducted immunity tests are always performed by the use of CDNs in laboratories in accordance with the standard EN61000-4-6. However, it is not always possible to use CDNs because of some limitations.
Azpúrua Auyanet, Marco Aurelio   +3 more
core   +1 more source

ARAMIS: a Martian radiative environment model built from GEANT4 simulations

open access: yesJournal of Space Weather and Space Climate
A new model of the Martian surface radiative environment has been built: Atmospheric RAdiation Model for Ionizing spectra on martian Surface (ARAMIS). Based on Monte Carlo calculations, it offers high computational flexibility for surface flux spectra ...
Charpentier Gabin   +12 more
doaj   +1 more source

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