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Now showing items 31-40 of 933
Development of the heating system using geothermal energy
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2006)
The paper presents the results achieved by the project financed by Ministry of Science and Environmental Protection of Serbia during the period 2003-2005. The purpose of the project was determination methodology for designing ...
Informaciono tehnološki standardi i vek konstrukcije u građevinarstvu / Information technology standards and structural life in civil engineering
(Institut za ispitivanje materijala, Beograd, 2007)
Rad opisuje informaciono tehnološke standarde koji se nalaze u osnovi modela podataka sa pretenzijom da postane internacionalni standard za elektronski model građevine kao zamena za danas korišćenu klasičnu papirnu ...
Study of the simulated heat affected zone of creep resistant 9-12% advanced chromium steel
(Taylor & Francis Inc, Philadelphia, 2008)
Global warming leads to research-development attempts worldwide with a view to reduce CO2 emission. Therefore, in the energy supply sector, a special focus has been directed to further development of steels that can endure ...
Unapređenje održavanja dijagnostikovanjem stanja i ponašanja rotornih bagera on-line i off-line metodom / Improvement of bucket wheel excavator maintenance by on-line and off-line method of condition and behavior diagnostics
(Savez inženjera i tehničara Srbije, Beograd, 2009)
Dijagnostika stanja i ponašanja je od presudnog značaja za donošenje pravilnog stava o radu i održavanju rotornog bagera, odnosno svih komponenti bagera, od čelične konstrukcije pa do pogonskih grupa. Da bi jedan rotorni ...
Uporedna analiza inženjerskih metoda u mehanici loma / A comparative analysis of engineering methods in fracture mechanics
(Institut za ispitivanje materijala, Beograd, 2009)
U ovom radu je analiziran Kingov model opruga u nizu za površinske prsline i pokazano je da se, polazeći od analitičkih izraza datih u modelu, mogu izvesti interesantne zavisnosti. Kingov model je upoređen sa modelom opruga ...
Dijagnostika ponašanja pogonskih grupa na rotornom bageru / Behaviour diagnostics of drive units on bucket wheel excavators
(Asocijacija za dizajn, elemente i konstrukcije - ADEKO, Niš i Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad, 2007)
Dijagnostika ponašanja pogonskih grupa na rotornom bageru je sublimacija analitičkog preseka stanja, numeričkog modela preko metode konačnih elemenata i izmerenih vibracija na karakterističnim mestima pogonskih grupa, ...
Variable Coefficients Model for Drying Processes with Conductive Heat Supply
(Taylor & Francis Inc, Philadelphia, 2009)
The proposed model is for heat and mass transfer inside a layer of moist material placed on hot isothermal surface. The relevant thermophysical properties of the material are considered as fully dependent on local temperature ...
Analiza prigušenja konstrukcije tipa ljuske od legure titana u poređenju sa konstrukcijom od legure aluminijuma / Analysis of structural damping of titanium alloy shell structures as compared with that of aluminium alloy structures
(Institut za ispitivanje materijala, Beograd, 2009)
U ovom radu se razmatra mehaničko ponašanje konstrukcije od legure titana sa aspekta određivanja osnovnih dinamičkih karakteristika. Analiziran je numerički model za konstrukcije legure titana tipa ljuske (osnovni konačni ...
Microstructure Changes of Nickel-Base Superalloys Induced by Interaction with Femtosecond Laser Beam
(Polish Acad Sciences Inst Physics, Warsaw, 2009)
The investigation was performed on nickel-base superalloys, with nickel being the most influential alloying ingredient. After thermo-mechanical preparation and corresponding processing, femtosecond laser beam machining has ...
Micromechanical estimates of the critical values of j-integral for the steel of steam pipelines
(Springer, New York, 2009)
We analyze the level of damage to 14MoV63 steel for steam pipelines under the conditions of crack-growth initiation according to the mechanism of ductile fracture. The state of the material after service for about 100,000 ...