Results 1 to 10 of about 1,666 (127)

Remote spectral analysis of varieties and lines of winter wheat during the flowering period

open access: yesPlant Varieties Studying and Protection, 2022
Purpose. Conduct a spectral assessment of winter wheat varieties (‘MIP Assol’, ‘Balada Myronivska’, ‘Hratsiia Myronivska’, ‘MIP Yuvileina’, ‘MIP Lada’, ‘MIP Dniprianka’, and standard ‘Podolianka’) and perspective breeding lines (‘Erythrospermum 55023 ...
Р.І. Топко   +1 more
doaj   +1 more source

Efficient index handling of multidimensional periodic boundary conditions [PDF]

open access: yes, 2001
An efficient method is described to handle mesh indexes in multidimensional problems like numerical integration of partial differential equations, lattice model simulations, and determination of atomic neighbor lists. By creating an extended mesh, beyond
Abramowitz M   +37 more
core   +3 more sources

Ontology learning algorithm using weak functions

open access: yesOpen Physics, 2018
Ontology is widely used in information retrieval, image processing and other various disciplines. This article discusses how to use machine learning approach to solve the most essential similarity calculation problem in multi-dividing ontology setting ...
Zhu Linli, Hua Gang, Aslam Adnan
doaj   +1 more source

Critical Exponents from General Distributions of Zeroes [PDF]

open access: yes, 2005
All of the thermodynamic information on a statistical mechanical system is encoded in the locus and density of its partition function zeroes. Recently, a new technique was developed which enables the extraction of the latter using finite-size data of the
Brascamp   +9 more
core   +4 more sources

Unbiased sampling of network ensembles

open access: yesNew Journal of Physics, 2015
Sampling random graphs with given properties is a key step in the analysis of networks, as random ensembles represent basic null models required to identify patterns such as communities and motifs. An important requirement is that the sampling process is
Tiziano Squartini   +2 more
doaj   +1 more source

Nonlinear response of electrons to a positive ion [PDF]

open access: yes, 2002
Electric field dynamics at a positive ion imbedded in an electron gas is considered using a semiclassical description. The dependence of the field autocorrelation function on charge number is studied for strong ion-electron coupling via MD simulation ...
Annette Calisti   +9 more
core   +3 more sources

Rank correlation between centrality metrics in complex networks: an empirical study

open access: yesOpen Physics, 2018
Centrality is widely used to measure which nodes are important in a network. In recent decades, numerous metrics have been proposed with varying computation complexity.
Shao Chengcheng   +4 more
doaj   +1 more source

Controlling the accuracy of unconditionally stable algorithms in Cahn-Hilliard Equation [PDF]

open access: yes, 2006
Given an unconditionally stable algorithm for solving the Cahn-Hilliard equation, we present a general calculation for an analytic time step $\d \tau$ in terms of an algorithmic time step $\dt$.
D. J. Eyre, James A. Warren, Mowei Cheng
core   +1 more source

On order statistics from nonidentical discrete random variables

open access: yesOpen Physics, 2016
In this study, pf and df of single order statistic of nonidentical discrete random variables are obtained. These functions are also expressed in integral form.
Yüzbaşı Bahadır   +2 more
doaj   +1 more source

Efficient decision-making by volume-conserving physical object

open access: yesNew Journal of Physics, 2015
Decision-making is one of the most important intellectual abilities of not only humans but also other biological organisms, helping their survival. This ability, however, may not be limited to biological systems and may be exhibited by physical systems ...
Song-Ju Kim   +2 more
doaj   +1 more source

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