THERMAL PROPERTIES OF SELECTED DENTAL MATERIALS
Today almost all manufacturers of dental materials in their certificates of quality of material give its chemical composition, mechanical properties, process ability in aesthetic characteristics while informations about thermal properties are not available.Within the work measurements of the thermal properties of five selected, in daily dental prac...
By Borut Kosec, Mateja Vodlan, Blaž Karpe, Aleš Nagode, Milan Bizjak, Igor Kopač, Alenka Pavlič, Igor Budak, Tatjana Puškar, Henry Taubmann, Mirko Gojić
NANOMATERIALS IN MEDICINE
The application of nanotechnology in medicine and dentistry will bring significant advances in the diagnosis, treatment, and prevention of disease. Various applications of nanotechnology in medicine are responsible for development of a new branch of medicine, called nanomedicine, which shows how it is possible to improve the understanding of pathop...
By Vukoman Jokanović
MICROSTRUCTURE OF METALLS COATINGS NiCrAlY
In conducted research was made a characterisation of microstructure and powder NiCrAlY, before and after applying on the base material. Coating was carried out by using HVOF Diamond Jet procedure, which uses the kinetic energy of the metal particles produced by on explosion of combustible gases. Characterisation was based on chemical analysis of me...
By Milenko Rimac, Mirsada Oruč, Gorazd Kosec
EXAMPLE OF DECARBURISING PHENOMENA DURING THE CARBURASING HEAT TREATMENT PROCESS
Carburizing is a very popular method of thermochemical treatment to increase the surface hardness of steel parts. It is achived by heating the steel at an austenite temperature in an environment of appropriate carbon source. Carbon sources provide the corresponding so-called a carbon potential (C potential). In the case of equilibrium state, the ca...
By Jusuf Duraković, Almaida Gigović-Gekić, Belma Fakić
OPTIMIZATION OF PROCESS PARAMETERS IN THE PRODUCTION OF POWDERED EXPLOSIVES IN PS VITEZIT
Parameter monitoring and testing of explosive substances under certain conditions, as well as control of raw materials used in the production process, contributes to obtaining the finest quality product.The aim of this paper was to test the key parameters in the process of explosive production and compare the results with the standard (reference) v...
By Šefkija Botonjić, Azra Halilović, Irma Ramić
ANALYSIS OF THICKNESS OF ECOLOGICAL MATERIAL, ORIENTATED POLYPROPYLENE FOR THE PACKAGING OF DRIED FRUIT
Rational choice and the use of appropriate packaging materials and types of packaging influence the preservation of the qualitative characteristics of the product as well as on the sustainability of the packaged content [1]. Based on testing the thicknesses of different types of materials, it is possible to make the right choice for packaging certa...
By Ajka Aljilji, Nebija Aljilji
QUALITY CONTROL OF DRINKING WATER
The main purpose of this paper was to control the quality of drinking water, which is distributed to the city of Zenica. Sampling, methods of testing and interpretation of the results were realized in accordance with Regulation on the hygiene of drinking water, "Official Gazette of B&H'', number: 40/10, 43/10, 30/12 [6]. JP "VIK" doo Zenica the...
By Asim Ibrahimagić, Amina Valentić
THERMODYNAMIC CALCULATION OF PHASE EQUILIBRIA OF THE Cu-Al-Mn ALLOYS
Cu-alloys have been intensively studied because of their high thermal conductivity, good electrical and shape memory properties and low cost. Cu-Al-Mn alloys show a higher ductility and elongation in relation to the other Cu-based alloys, as well as a good potential for a cold drawing. Therefore, the investigation of these alloys is ...
By Tamara Holjevac-Grgurić, Dragan Manasijević, Dragana Živković, Ljubiša Balanović, Stjepan Kožuh, Robert Pezer, Ivana Ivanić, Ivan Anžel, Borut Kosec, Ladislav Vrsalović, Mirko Gojić
INVESTIGATION OF THE INFLUENCE OF WATER TO CEMENT RATIO TO SPEED THE CORROSION OF CONCRETE AND REINFORCING STEEL CAUSED BY SALTS OF MAGNESIUM
The paper presents investigation of the influence of water to cement ratio, w/c, to speed the corrosion of concrete and reinforcing steel in concrete caused by salts of magnesium. The samples were preparatory varying w/c (0,5 and 0,7). The test samples were treated nine months in the following solutions: 5% MgCl2, 5% MgSO4, 5% MgCl2 ...
By Farzet Bikić, Dejana Brkić
THE POSSIBILITY OF BIODIESEL PRODUCTION UNDER LABORATORY CONDITIONS
Because of the oil shortage and the growing increasing environmental burdens-emission from motor vehicles, the idea of the biofuels application has been actualized. The European Union directive 2003/30/EC obliged Member States that until 31 December 2005, they must provide at least 2% share of biofuels and other renewable fuels in the total amount ...
By Šefkija Botonjić, Ilhan Bušatlić, Azra Halilović, Adnan Muratović