PHOTO CHROMATIC SENSORS OF MULTINARY MIXED VALENCE INORGANIC MICRO NEEDLES
The recent I-U measurements on the individual micro needle-shaped crystals, of the ternary mixed valence compound In5Se5Cl, crystallizing in the monoclinic crystal system (P21/m), showed significant light sensitivities. Micro needles of In5Se5Cl “glued” on Si- and Cu- substrates were measured under five different wavelengths with variou...
By Kledi Xhaxhiu, Carita Kvarnström, Pia Damlin, Arjan Korpa, Klaus Bente
INFLUENCE OF TEMPERATURE AND DIFFERENT METHODS OF THERMAL PROCESSING TO COLOR CHANGES AND SENSORY CHARACTERISTICS OF PORK MEAT
Meat is very important ingredients in the human diet, so it is a source of easily digestible, biological and energy valuable components. Therefore, this paper investigate the influence of temperature in the temperature range from 51°C to 100°C and different methods of thermal processing, thermal treatment by cooking and roasting, to change ...
By Radoslav Grujić, Dragan Vujadinović, Vladimir Tomović
THE QUALITY OF COFFEE THAT IS PREPARED AND CONSUMED IN THE TRADITIONAL WAY
Coffee is one of the most popular beverages worldwide. Consumption of black coffee brew, which is prepared in traditional way is characteristic for this region. Consumer expectations in terms of quality and sensory characteristics of beverages can significantly affect on the acceptability of coffee. The aim of this study was to investigate the qual...
By Natalija Džinić, Marija Jokanović, Božana Odžaković, Slavica Grujić
DETERMINATION OF CHANGE IN CONTENT OF HEAVY AND RADIOACTIVE METALS IN DRINKING WATER BY AN INDIRECT ANALYSIS METHOD BASED ON SCALE TESTS
In this paper the content of metal in drinking water was determined in two samples, one from 2008 and other from 2010, by the indirect method based on the analysis of scale, which had originally been suggested by Rajkovic and associates. Received results confirmed that drinking water according to the metal content was of constant level (metals are ...
By Miloš Rajković, Mirjana Stojanović, Maja Eremić Savković, Uroš Lačnjevac, Dragan Tošković
EFFICIENT USE OF SOLAR ENERGY RECEIVERS WITH LIQUID AND AIR AS HEAT CARRIERS
Reduction of fossil - iscrpljivih, but also non-renewable, fuels and increased concentrations of greenhouse gases on a global scale, have led to rapid development of alternative energy sources, resulting in the use of solar energy occupies an important role in the production of energy from renewable sources. The paper presents the system and method...
By Velimir Šćekić
PREDICTION MODELS OF NON-FERROUS SECONDARY RAW MATERIALS FORMATION
For the prediction of formation of non-ferrous processing and accumulating waste both model of balancing and model of correlation and regression analysis can be employed, while the dynamic model can be applied only for the accumulating waste. Estimates of the formation of certain type of metallic secondary raw materials in model of balancing are ba...
By Miroslav Sokić, Ilija Ilić, Zvonko Gulišija, Željko Kamberović, Nada Štrbac, Vaso Manojlović
ANALYSIS OF BUSINESS ENVIRONMENT AND BARRIERS
This paper presents the results of tests perception of business environment and barriers to business by attitudes of entrepreneurs in local communities. It is well known that general region of the Balkan countries, is faced with the problem of the lack of investment as well as domestic and foreign direct investment. One of the major causes of cours...
By Mitar Perušić, Miladin Gligorić, Radislav Filipović
EXAMINATION OF AFLATOXINS IN MILK AND ACCURACY OF THE METHOD
In this study, we determined the accuracy Vicam method for the determination of aflatoxin B1 in feed and aflatoxin M1 in milk and dairy products by applying the method of standard addition. Analytical yield in all causes ranged from 93 to 95%, indicating a high accuracy of the method. The determination was made on aflatoxin B1 in (n ...
By Julijana Tomovska, Katerina Bojkovska, Velina Stefanovska, Natalija Tomovska
RETENTION AND LIPOPHILICITY OF ESTRADIOL DERIVATIVES IN NORMAL- AND REVERSED-PHASE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY
The retention behaviour and separation ability of some estradiol derivatives were studied by HPLC on silica and C-18 commercially available columns. The mobile phases used were: benzene-ethyl acetate, benzene-tetrahydrofuran, benzene-acetonitrile, isopropanol-water and tetrahydrofuran-water in various proportions. The results are discussed in terms...
By Marijana Ačanski, Đura Vujić, Zvonko Nježić
INFLUENCE OF USED LUBRICANTS TO ENVIRONMENT
In the according with very intensive application of lubricant, the very large amounts of used lubricants which are harmful to the environment and human health are produced. In the European Union countries, the problem of used lubricants are permanently solved and many directives about this problem is setted (in the starting EEC Directive 75/439 and...
By Zoran Petrović, Goran Tadić, Pero Dugić, Vojislav Aleksić, Tatjana Botić, Mirko Petković