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Prikaz rezultata 1-10 od 178
Mobility of positive ions in CF4
(IOP Publishing Ltd, Bristol, 2014)
Cross-section sets for transport of positive ions in CF4 that fit the available experimental data for mobility are assessed by normalizing the available experimental and theoretical cross-sections within the framework of ...
Experimental determining of fracture behaviour of P460NL1 steel welded joint specimens
(Elsevier Science Bv, Amsterdam, 2019)
This paper is focused on the experimental measuring of impact energy as a part of the doctoral dissertation involving the fatigue behaviour of welded joints, made of fine grain normalised micro-alloyed low carbon high ...
Fractional order Cole model of bioimpedance of the human skin: new results
(Bulgaria: Publ. House „Vanio Nedkov“, 2012)
In this paper, electrical impedance measurement data and fractional calculus have been utilized for modeling bioimpedance properties of human skin. In relation to our experimental in vivo conditions,
structure and complexity ...
Analysis of Crossing and Veering Phenomena in Planar Frame Structures
(Univerzitet u Beogradu, Mašinski fakultet, 2022)
In this paper, crossing and veering phenomena are discussed for a two-element frame consisted of beams of constant circular cross-sectional area, mass density and modulus elasticity, see Fig. 1. Depending on the mechanical ...
Differences between macro- and nanohardness of MMC materials
(Proceedings of the Second European Workshop on Understanding and Controlling Nano and Mesoscale Friction, 2016)
Wear of A356/Al2O3 nanocomposites and optimisation of material and operating parameters
(Proceedings of the 10th International Conference on Tribology – BALKANTRIB '20, 2021)
The aim of this study was optimization of wear of nanocomposites with A356 alloy as a matrix. Different percentages of Al2O3 particles (0.2, 0.3 and 0.5 wt. %), with two average size (25 and 100 nm), were dispersed in the ...
Crack growth resistance of weldment constituents
(Elsevier Science Bv, Amsterdam, 2018)
The ovennatching can affect the occurrence of cold cracks after welding in high-strength low-alloyed steels of 770 MPa yield strength class. The welding consumable has been designed in a way to produce WM with slightly ...
Conceptual design of solar-powered high-altitude long endurance aircraft
(University of Belgrade, Faculty of Mechanical Engineering, 2022)
The design of high-altitude unmanned aerial vehicles is one of the most current research
topics today in the field of aviation. The possible purposes of such flying platforms are
numerous, from communication hubs, terrain ...
Equations of Motion of Robotic System With Piezo‐Modified Viscoelastic and Magnetorheological Elements of Fractional Order
(Wiley Online Library, 2013)
In this communication, the Rodriguez method is proposed for modeling dynamics of the robotic system, where Lagrange’s equations of second kind of rigid bodies system in covariant form are used. Discrete hybrid elements ...
Simulating flow in silicon Y-bifurcated microchannels
(University of Belgrade, Faculty of Mechanical Engineering, 2022)
Microfluidic devices are excessively used for various biomedical, chemical, and engineering
applications. The most common microfluidic platforms are obtained from
polydimethylsiloxane (PDMS). Platforms based on etched ...