Results 11 to 20 of about 16,800,564 (351)

Mathematical modelling of elastic vibrations arising from four-body impact interaction [PDF]

open access: yesE3S Web of Conferences, 2023
This paper presents a mathematical model of elastic vibrations arising from shock interaction in a four-body system. The resulting model has two applications: the study of linear elastic interaction and the study of nonlinear elastic interaction.
Vyplaven V.S.   +5 more
doaj   +1 more source

Ensuring sustainable development of education of future maritime transport professionals by means of network interaction [PDF]

open access: yesE3S Web of Conferences, 2020
The article describes the concept of sustainable development, which is one of the modern trends of scientific research in the 21st century. The analysis of scientific researches has been carried out in the context of the mentioned problem of sustainable ...
Dyagileva Olena   +4 more
doaj   +1 more source

The Fuzzy Logic in the Problems of Test Control of a Bypass Turbojet Engine Gas Generator

open access: yesMathematics, 2022
Continuous improvement in the operational characteristics of gas turbine equipment and a significant reduction in the time of its creation have led to the development and application of new technologies for conducting research tests of a gas generator ...
Alexander Inozemtsev   +7 more
doaj   +1 more source

Railway optimal network simulation for the development of regional transport-logistics system [PDF]

open access: yesЭкономика региона, 2013
The dependence of logistics on mineral fuel is a stable tendency of regions development, though when making strategic plans of logistics in the regions, it is necessary to provide the alternative possibilities of power-supply sources change together ...
Mikhail Borisovich Petrov   +2 more
doaj   +1 more source

Influence of the Weld Joint Position on the Mechanical Stress Concentration in the Construction of the Alternative Skid Car System’s Skid Chassis

open access: yesApplied Sciences, 2021
This paper deals with the optimization of the crossbars, parts of the existing frame of the experimental system of the Alternative SkidCar. This part plays a crucial role and is designed to enable and ensure reduced adhesion conditions between the ...
Petr Jilek   +2 more
doaj   +1 more source

Peace as the purpose of the military [PDF]

open access: yesВојно дело, 2021
The attitude of political system, and in a broader sense of political community, towards the military is largely defined by the understanding of the role and purpose that the military has in a society. The lack of the understanding of the true purpose of
Stanar Dragan
doaj   +1 more source

Application of FTIR-ATR Spectrometry in Conjunction with Multivariate Regression Methods for Viscosity Prediction of Worn-Out Motor Oils

open access: yesApplied Sciences, 2021
Viscosity is considered to be a key factor in the quality of lubrication by oil and engine manufacturers and is therefore one of the most monitored parameters of lubricants. FTIR (Fourier-transform infrared) spectrometry in combination with Partial Least
Marie Sejkorová   +3 more
doaj   +1 more source

Notes on the Reproductive Biology of the Alabama Red Hills Salamander (Phaeognathus hubrichti ) [PDF]

open access: yes, 2003
Living Amphibia exhibit two major life history modes, possession of an aquatic larval stage or direct development, with the latter assumed to be the derived evolutionary condition (Duellman and Trueb 1986, Wake 1989).
Means, Bruce
core   +2 more sources

Comparison of selected parameters for evaluation of rail surface damage intensity

open access: yesActa Polytechnica CTU Proceedings, 2022
This paper deals with the issue of evaluation of a rail surface damage (RSD) intensity. Some ways of calculating parameters that represent the RSD are described. In this context, a multi-body model of a railway vehicle was created and several simulations
Jiří Šlapák, Tomáš Michálek
doaj   +1 more source

Desmognathus apalachicolae [PDF]

open access: yes, 1993
Number of Pages: 2Integrative BiologyGeological ...
Means, D. Bruce
core   +1 more source

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