Results 11 to 20 of about 143,746 (258)

Mathematical and Statistical Aspects of Estimating Small Oscillations Parameters in a Conservative Mechanical System Using Inaccurate Observations

Mathematics, 2023
This paper selects a set of reference points in the form of an arithmetic progression for planning an experiment to evaluate the parameters of systems of differential equations.
Gurami Tsitsiashvili, Alexey Gudimenko, Marina Osipova   +2 more
doaj   +1 more source

Optimization of Plasma Electrolytic Oxidation Technological Parameters of Deformed Aluminum Alloy D16T in Flowing Electrolyte

Ceramics, 2023
The prospects of plasma electrolytic oxidation (PEO) technology applied for surface hardening of aluminum alloys are substantiated. The work aims to optimize the technological process of PEO for aluminum in flowing electrolyte.
Liubomyr Ropyak, Thaer Shihab, Andrii Velychkovych, Vitalii Bilinskyi, Volodymyr Malinin, Mykola Romaniv   +5 more
doaj   +1 more source

Tamanho de parcela para produtividade de grãos de sorgo granífero em diferentes densidades de plantas Experimental plot size in grain sorghum in different plant densities

Pesquisa Agropecuária Brasileira, 2005
O objetivo deste trabalho foi verificar a influência do arranjo de plantas na estimativa do tamanho ótimo de parcela da cultura de sorgo granífero, para a variável produtividade de grãos. O delineamento estatístico utilizado foi o de blocos ao acaso, num
Sidinei José Lopes, Lindolfo Storck, Alessandro Dal'Col Lúcio, Leandro Homrich Lorentz, Cláudio Lovato, Vilnei de Oliveira Dias   +5 more
doaj   +1 more source

Integration of ozonation with water treatment for pharmaceuticals removal from Arroio Diluvio in southern Brazil

Water Science and Technology, 2023
Pharmaceutical compounds can reach water bodies through sewage systems. The process of water treatment is insufficient for the removal of these contaminants.
Letícia Reggiane de Carvalho Costa, Liliana Amaral Féris   +1 more
doaj   +1 more source

Tamanho ótimo de parcela em milho com comparação de dois métodos Optimum plot size in corn compared with two methods

Ciência Rural, 2011
O objetivo deste trabalho foi comparar dois m todos de estimação do tamanho ótimo de parcela (Xo) para avaliar 12 caracteres de híbridos simples, triplo e duplo de milho e verificar a variabilidade do Xo entre caracteres e entre híbridos.
Alberto Cargnelutti Filho, Marcos Toebe, Cláudia Burin, Gabriele Casarotto, André Luis Fick   +4 more
doaj   +1 more source

Optimization of Technological Parameters of the Process of Forming Therapeutic Biopolymer Nanofilled Films

Nanomaterials, 2022
The prospects of using biopolymer nano-containing films for wound healing were substantiated. The main components of biopolymer composites are gelatin, polyvinyl alcohol, glycerin, lactic acid, distilled water, and zinc oxide (ZnO) nanoparticles (NPs ...
Michał Bembenek, Oleg Popadyuk, Thaer Shihab, Liubomyr Ropyak, Andrzej Uhryński, Vasyl Vytvytskyi, Oleksandr Bulbuk   +6 more
doaj   +1 more source

TESTING DESIGN METHODOLOGY BASED ON TWO-LEVEL MULTIFACTOR EXPERIMENT PLANNING AND DATA PROCESSING

Advanced Engineering Research, 2014
The decomposition of knowledge into an array of “micro-knowledge” permitting a single-valued binary test score is studied. In this case, the test task is formulated as a set of micro-knowledge responses jointly revealing the knowledge level of the ...
Rudolf Anatolyevich Neydorf, Elena Nikolayevna Obukhova   +1 more
doaj   +1 more source

THE INFLUENCE OF THE FILLER GRAIN COMPOSITION ON THE PROPERTIES OF THE HEAT-RESISTANT BASALTIC CONCRETE

Вестник Дагестанского государственного технического университета: Технические науки, 2017
Objectives. The optimal granulometric composition of filler compound ensures the production of concrete having improved  physical and mechanical characteristics, as well as minimal binder  consumption.
A. M. Gadzhiev, R. M. Kurbanov, Kh. N. Khadzhishalapov, T. A. Hezhev   +3 more
doaj   +1 more source

Selection of Rational Polishing Modes for Cladded Chrome Coatings

Механика машин, механизмов и материалов, 2020
As a result of experimental and statistical modeling, dependencies were obtained that establish the effect of polishing modes (the number of passes of the polishing wheel, the value of the wheel tightness) on the roughness and thickness of the chrome ...
Mikhail A. Levantsevich, Natalia N. Maksimchenko, Yahor V. Pilipchuk   +2 more
doaj   +1 more source

Fast Method for Estimating the Parameters of Partial Differential Equations from Inaccurate Observations

Mathematics, 2023
In this paper, the problems of estimating the parameters of partial differential equations from numerous observations in the vicinity of some reference points are considered.
Gurami Tsitsiashvili, Alexey Gudimenko, Marina Osipova   +2 more
doaj   +1 more source