Претраживање
Приказ резултата 61-70 од 1405
Uticaj sopstvenih učestanosti na inicijaciju prslina kućišta zupčaste pumpe / Influence of eigen frequencies on crack initiation in gear pump housing
(Institut za ispitivanje materijala, Beograd, 2009)
Razmotreni su osnovni teorijski aspekti dinamičke analize konstrukcija i analiziran poseban primer kućišta jedne zupčaste pumpe visokog pritiska. Model konstrukcije je baziran na 3D elementima. Korišćen je programski paket ...
Welded penstock, produced of high-strength steel and application of fracture mechanics parameters to structural integrity assessment
(Springer, Dordrecht, 2008)
Application of high-strength steel for welded penstock increased the probability of crack-like defects and in welded joint. Structural integrity assessment procedure is presented and applied to welded penstock produced of ...
Analysis of fouling factor in district heating heat exchangers with parallel helical tube coils
(Pergamon-Elsevier Science Ltd, Oxford, 2013)
This paper presents the results of measurements of thermal performance of 8 heat exchangers with parallel helical coils. Measurements were conducted in substations in 2 district heating systems in Serbia: Belgrade and ...
Energy efficiency of residential buildings in Serbia
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2010)
In this paper, presented is the stale-of-the-art of energy Efficiency of residential buildings in Serbia. Special attention is paid to energy efficiency in already existing buildings. The average energy consumption in ...
Reconstruction of the aero-mixture channels of the pulverized coal plant of the 100 MW power plant unit
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2011)
After the last revitalization of thermal power block of 100 MW in TPP 'Kostolac A', made in the year 2004, during the operation of the plant, pulverized coal deposition often occurred in horizontal sections of the aero-mixture ...
The effect of bowl-in-piston geometry layout on fluid flow pattern
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2011)
In this paper some results concerning the evolution of 3-D fluid flow pattern through all four strokes in combustion chambers with entirely different bowl-in-piston geometry layouts ranging from 'omega' to 'simple cylinder' ...
Numerička simulacija uticaja veze na inicijaciju loma kod zavarenih epruveta upotrebom modela lokalnog oštećenja / Numerical simulation of constraint effect on fracture initiation in welded specimens using a local damage model
(Institut za ispitivanje materijala, Beograd, 2011)
U ovom radu, primenjena su dva mikromehanička modela: Gurson-Tvergard-Nidlman (GTN) model i Potpuni Gurson model (CGM) za procenu inicijacije duktilnog loma kod dve različite zavarene epruvete, SE(B) i C(T). Uticaj mismečinga ...
Simultaneous consideration of contingency factors and quality management: An empirical study of Serbian companies
(Academic Journals, Victoria Island, 2011)
The aim of the present paper is to answer whether the QM concept is universal or context-dependent, organic or mechanistic, and theoretical or practical in its essence. The study examines the impact of contingency factors ...
Analysis of local shrinkage patterns of self-adhering and flowable composites using 3D digital image correlation
(Quintessence International, 2011)
Objective: To analyze local shrinkage patterns in terms of surface shrinkage strains and z-axis displacements in a novel self-adhering composite and a conventional flowable composite using three-dimensional digital image ...
Upravljanje rizikom projekata u kompleksnom petrohemijskom sistemu / Project risk management in complex petrochemical system
(Savez hemijskih inženjera, Beograd, 2012)
Istraživanja rizika u složenim industrijskim sistemima, kao i određivanje bitnih faktora koji utiču na odlučivanje i na sprovođenje donetih odluka, pokazala su na primeru savremenog petrohemijskog sistema da se može uspešno ...