Pretraživanje
Prikaz rezultata 11-20 od 3668
Dinamička opterećenja od različitih oblika vodenog udara / Dynamic loads by various water hammer phenomena
(Institut za ispitivanje materijala, Beograd, 2009)
Vodeni udar se može pojaviti kako u jednofaznom tako i u dvofaznom strujanju kroz cevovode. Razmatrani su osnovni mehanizmi koji dovode do pojave vodenog udara. Prikazana je i analizirana pojava dinamičkih opterećenja koja ...
Experimental Investigation of Microcutting Mechanisms in Marble Grinding
(ASME, New York, 2009)
This paper offers an experimental study of the microcutting mechanisms in marble grinding to aid the optimization of the marble grinding process. The necessity for investigating these mechanisms is dictated by the increased ...
Exponential tracking control of an electro-pneumatic servo motor
(Strojniski Vestnik/Journal of Mechanical Engineering, 2008)
According to the fundamental importance of the tracking theory on technical systems, the main goal of this paper is a further development of the theory and the application of the tracking, especially to the practical ...
Measurement and interpretation of swarm parameters and their application in plasma modelling
(IOP Publishing Ltd, Bristol, 2009)
In this review paper, we discuss the current status of the physics of charged particle swarms, mainly electrons, having plasma modelling in mind. The measurements of the swarm coefficients and the availability of the data ...
Safe Operation of Welded Structure with Cracks at Elevated Temperature
(Strojniski Vestnik/Journal of Mechanical Engineering, 2008)
The fatigue crack growth rate parameters and conditions for abrupt fracture of thick joint in steel at room and operating temperature were analysed. Fatigue cracks generated from sharp weld defects are initial cracks that ...
Approximation of material behaviour of PLLA polymer in HAp/PLLA biocomposite material using nanoindentation and finite element method
(Savez inženjera metalurgije Srbije, Beograd, 2007)
In this work, a combination of nanoindentation experiment and finite element modeling is proposed in order to obtain approximate material behavior of PLLA polymer in hydroxyapatite (HAp)/poly-L-lactide (PLLA) composite. ...
Jedan pristup optimizaciji tankozidih konzolnih nosača otvorenih poprečnih preseka / An approach to the optimization of thin-walled cantilever open section beams
(Srpsko društvo za mehaniku, Beograd, 2007)
U ovom radu je razmatran jedan pristup optimizaciji tankozidih konzolnih konstrukcionih elemenata otvorenih poprečnih preseka izloženih savijanju i ograničenoj torziji. Problem je redukovan na određivanje minimalne mase ...
Conversion of a left-hand circularly polarized whistler wave into the magnetic energy of a controllable helical wiggler wave
(Plasma Devices and Operations, 2009)
A linearly polarized electromagnetic source wave splits into six traveling wave modes (three of them are right-hand circularly-polarized (RCP) modes and three are left-hand circularly-polarized (LCP) modes) due to the ...
Pretovarni mostovi sa elevatorima, deo II - konstrukciono rešenje, tehnologija i proračun rekonstruisane strukture / Unloading bridges with reclaimers, Part II: Structural solution, technology and calculus of structural reengineering
(Savez inženjera i tehničara Srbije, Beograd, 2007)
Četiri pretovarna mosta raspona 50 m, kapaciteta 300 t/h opslužuju otvoreno skladište uglja u TE "Kolubara" - Veliki Crljeni. Tokom njihove eksploatacije dolazilo je do relativno čestih zastoja izazvanih nedostatcima noseće ...
An inequality for the Lebesgue measure and its further applications
(Univerzitet u Kragujevcu - Prirodno-matematički fakultet, Kragujevac, 2008)
In [Univ. Beograd Publ. Elektrotehn. Fak. Ser. Math. 15 (2004), 85-86], the first author of this paper proved a new inequality for the Lebesgue measure and gave some applications. Here, we present a new application of this ...