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
SIMULATION OF ACOUSTIC NOISE ELIMINATION OF AN AUDIO PROFILE GENERATED BY URBAN ENVIRONMENTS IN TIRANA, ALBANIA Modeling via Matlab / Simulink
Urban environments are subject to various pollutions where, among other things, acoustic pollution. Consequently, the study of acoustic pollution is an issue that is addressed in several aspects: economic, political and scientific / research.In this paper we propose a simulation model through the Matlab / Simulink software that shows the effect of ...
By Jozef Bushati, Virtyt Lesha, Darko Petković, Diana K Karuović
AIR QUALITY INDEX (AQI) – COMPARATIVE STUDY AND ASSESSMENT OF AN APPROPRIATE MODEL FOR B&H
The regulations on air quality in Bosnia and Herzegovina are based on European Union regulations and they rely on defined limits for concentrations of certain pollutants. Although the law stipulates that the public must be informed on the quality of environmental parameters in a clear, simple and easily understandable manner, this is not the case i...
By Samir Lemeš
THE EXAMINATION OF THE MOST IMPORTANT QUALITY PARAMETERS OF WASTEWATER FROM CELLULOSE AND PAPER INDUSTRY AND ITS INFLUENCE AT SURFACE WATER RECIPIENT
Basic raw materials for paper production are cellulose fibers and water. Water plays a major role in the process of cellulose and paper production and it is present in almost all phases of the cellulose fiber production process. Because of that the cellulose and paper industry is considered to be one of the largest consumers of natural resource pol...
By Ilhan Bušatlić, Šefkija Botonjić, Azra Halilović
CHEMICAL ANALYSIS OF HEAVY METALS IN LEAF OF GREEN SALAD AND ASSESSMENT OF CONTAMINATION
The paper presents the results of an analysis of the content of heavy metals (Pb, Cd, Zn, Ni, Cu and Fe) in a leaf of green salad from six locations which gravitate towards the city of Zenica. After sampling from the defined locations, samples of green salad were prepared for analysis in the laboratory of the Faculty of Metallurgy, by dry digestion...
By Farzet Bikić, Fatima Baltić, Dejana Kasapović, Amira Pašalić
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
CAVITATION OF REFRACTORY SAMPLES BASED ON TALC AND ZEOLITE FROM ZLATOKOP, SERBIA
Samples based on talc with 15 % of zeolite from Zlatokop, Serbia, sintered at 1200 ºC were prepared and tested in condition of cavitation erosion. The ultrasonic vibratory cavitation set up with stationary specimen was used. Mass loss was measured and degradation level of the samples using image analysis and Young modulus of elasticity was mon...
By Jelena Majstorović, Sanja Martinović, Milica Vlahović, Marina Dojčinović, Marko Pavlović, Tatjana Volkov Husović
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
THE EFFECTS OF NANOSILICA ON THE PHYSICAL-MECHANICAL PROPERTIES OF CONCRETE
The physical-mechanical properties of concrete with nanosilica were experimentally studied. Nanosilica in powder form was used as a partial replacement of cement at dosage of 3 and 6 wt.%. The experimental results show that the compressive strengths of concretes with nanosilica particles were all higher than those of reference concretes at ages 1, ...
By Adnan Mujkanović, Marina Jovanović, Amel Zahirović
THE EFFECTS OF THE DISTRIBUTION COEFFICIENT ON THE PROPERTIES OF THE REFRACTORY CASTABLES FROM THE CHAMOTTE WASTE AND CLAY “RAPAJLO”
The paper examined the conventional castables composed of a mixture of high aluminate cement with 70% Al2O3, chamotte waste with 42% Al2O3 and brick clay ,,Rapajlo“. The influence of particle size distribution on density, porosity, water absorption, modulus of rapture and cold crashing strength was investigated. Particle size distribution was...
By Marina Jovanović, Adnan Mujkanović, Nadira Bušatlić