Results 1 to 10 of about 5,397,821 (298)

Exact satisfaction of boundary and interface conditions in nodal-integration-based finite element methods

open access: yesComptes Rendus. Mécanique, 2022
In spite of some drawbacks, finite element methods based on nodal rather than Gaussian integration present major advantages, especially in the context of elastoplastic or elastoviscoplastic problems—notably the elimination of locking problems due the ...
Jia, Yabo   +2 more
doaj   +1 more source

Effects of biotransport and hydro-meteorological conditions on transport of trace elements in the Scott River (Bellsund, Spitsbergen) [PDF]

open access: yesPeerJ, 2021
The shaping of surface water chemistry in the Svalbard Archipelago is strongly dependent on the geology of the catchment and the process of long-range transport of atmospheric pollutants (LRATP).
Sara Lehmann-Konera   +4 more
doaj   +2 more sources

Calculation of compelled fluctuations of panel buildings [PDF]

open access: yesE3S Web of Conferences, 2023
The article discusses the dynamic calculation of the elements of the box structure of buildings under the action of seismic effects, taking into account the spatial work of the box elements, given by the displacement of their lower part according to a ...
Usarov Makhamatali   +2 more
doaj   +1 more source

Optimal Mass Design of 25 Bars Truss with Loading Conditions on Five Node Elements [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2019
The optimal design of a twenty-five bar space truss commonly involves multiple loading conditions acting on 4 node elements in the linear elastic model. In this paper, we describe the behavior of the truss system with our experimental loading conditions ...
Koumbe Mbock   +3 more
doaj   +1 more source

Impact of Air Transport on Blood Sample Quality

open access: yesActa Clinica Croatica, 2023
The aim of this study was to establish the impact of air transport on blood samples packaged with and without cooling elements and effect of outdoor temperature on sample quality.
Irena Jukić   +7 more
doaj   +1 more source

Variability of the elements of spring barley yield structure depending on the hydrothermal conditions of vegetation

open access: yesАграрная наука Евро-Северо-Востока, 2022
The purpose of the research is to identify the main elements of the crop structure that affect the productivity of spring barley in different weather conditions in the Ryazan region.
O. V. Levakova
doaj   +1 more source

Phytoextraction of toxic elements by Amaranthus Tricolor grown on technogenically polluted soils in open ground conditions

open access: yesChimica Techno Acta, 2022
Using the INAA method, the ability of Amaranthus tricolor L. variety “Valentina” growing on soils with different degree of pollution to extract heavy metals was evaluated in the field experiments.
Svetlana V. Gorelova   +2 more
doaj   +1 more source

Influence of Machining Conditions on Micro-Geometric Accuracy Elements of Complex Helical Surfaces Generated by Thread Whirling

open access: yesMicromachines, 2022
Complex surfaces such as helical ones are commonly used in machinery. Such surfaces can be obtained by various machining processes, one of these processes being thread whirling.
Vasile Merticaru   +6 more
doaj   +1 more source

Assesment of influence large roughness elements on hyraulic water flow conditions in Będkówka stream channel

open access: yesActa Scientiarum Polonorum. Formatio Circumiectus, 2020
Aim of the study: The paper presents the results of research carried out in the Będkówka stream. The aim of study was to determine the influence of large roughness elements on the change in the coefficient of roughness and resistance coefficients ...
Bogusław Michalec, Monika Zwolenik
doaj   +1 more source

On-Line Control of Stresses in the Power Unit Pressure Elements Taking Account of Variable Heat Transfer Conditions

open access: yesEnergies, 2021
Coal-fired power units, now balancing power shortages in the power system, must be characterised by increasingly higher flexibility of operation. This means faster start-ups and the capacity for frequent decreases and increases in the power output. These
Andrzej Rusin   +4 more
doaj   +1 more source

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