Calcium hydroxyapatite (CHA) has been synthesized biomimetically using simulated body fluid (SBF) alone and in combination with Fetal Calf Serum (FCS) and Eagle’s Minimum Essential Medium (EMEM). Chemical composition of the used SBF is like composition of human plasma, with small differencies in some ions concentrations, and pH value was adju...

By V. JOKANOVIĆ, B. ČOLOVIĆ

The samples of rolled copper were mechanically and electrochemically polished in suitable electrolytes for electrochemical polishing. These substrate surfaces that had been prepared in advance, served as the basis for depositing of copper layers from two baths, namely, from the basic electrolyte(OR) with the following composition: 240 g/dm3 Cu...

By M. V. TOMIĆ, M. G. PAVLOVIĆ, LJ. J. PAVLOVIĆ, N. D. NIKOLIĆ

Supercritical fluid extraction (SFE) is an efficient extraction technique for the separation of various organic compounds from herbs, or more generally, from plant materials. As cultivate plant (plant from plantation) Helichrysum italicum from municipality Novi Grad was used in this research. The influence of pressure on total extract yield at flow...

By V. MIĆIĆ, M. JOTANOVIĆ, Ž. LEPOJEVIĆ, V. ALEKSIĆ, B. PEJOVIĆ

The purpose of the research was to make evaluation of the ballistic strength of four different fiber/resin composites intended to be used in manufacturing of ballistic items for personal protection. Research has been performed on glass, ballistic nylon, aramid and HPPE (High Performance Polyethylene) plain woven fabrics based composites. As a matri...

By D. DIMESKI, D. SPASESKA, V. SREBRENKOSKA

Reliable and rapid identification of phyto-pathogens causing plant diseases is playing an important role in their control strategies. The available methods for identification of fungi are time consuming and not always very specific. MALDI-TOF and Fourier-transform infrared (FTIR) microscopy are proved to be comprehensive and sensitive analytical me...

By V. ERUKHIMOVITCH, L. TSROR LAHKIM, M. KARPASAS, M. HAZANOVSKY, M. HULEIHIL, M. HULEIHEL

Increase of ecological awareness affected the realization of more strict laws concerning the environment, which are being imposed in many countries. It also affected lubricant area and tendency for decreased pollution that lubricants can induce if they are uncontrollably spread around. Earlier it was believed that biodegradability is the most impor...

By M. DUGIĆ, P. DUGIĆ, R. MACURA

A fluid bed dryer with inert particles represents a very attractive alternative to other drying technologies according to the main efficiency criteria, i.e. specific water evaporation rate, specific heat consumption and specific air consumption. A high drying efficiency results from the large contact area and from the large temperature difference b...

By Ž. B. GRBAVČIĆ

A scope is given on the past and future progress of the Engineering. The origin of the term Engineering is elaborated and followed through the past. A stress is put on the Latin Ingenium, as oposed to the frequently mismatched origin in the word Engine. Further development through the Military until the Civil Engineering (and other varieties in the...

By S. HADŽI JORDANOV, O. POPOVSKI

Unlike the classical management approach based on hierarchical relations within an organization, a behaviorist concept of business systems management attracts more and more light. This refers to new paradigms of management such as organizational behavior, as well as the culture and climate of an organization. Organizational behavior targets individ...

By B. STAVRIĆ

In this paper will be introduced the newest research in high-temperature superconducting materials. In the first part of the paper will be analyzed discovery of superconductivity and the phenomena and effects related with this topic and the superconducting materials as well. In the second part of the paper will be analyzed our research of nanostruc...

By D. LJ. MIRJANIĆ, J. P. ŠETRAJČIĆ

The co-deposition of silver with less noble metals results at low current densities in pure silver coatings or solid solutions of these metals in silver. At high current densities, after saturation of the silver lattice with the alloying metal a new richer in this element phase is formed and heterogeneous coatings are obtained. The spontaneous depo...

By I. KRASTEV

Spindle is one of the most important member in turning machines, so that its precision determines the dimensional tolerances of machined parts. In this paper, the spindle’s response to standard input parameters has been analyzed via Finite Element Method (FEM).From this point of view, the spindle of LZ330VS turning type machine is modeled wit...

By R. A. MAHDAVINEJAD

Starting from the Fourier's law for stationary heat transfer and Ohm's law for DC through the resistor, the paper presents the analogy between thermodynamic and electrical quantities. Based on this analogy, has been used knowledge of circuit theory for of the heat transfer through walls in the multilayer characteristic positions to derive the schem...

By B. PEJOVIĆ, M. PERUŠIĆ, D. VUJADINOVIĆ, D. ĐORĐIĆ

The amount of total acids in must is in most number of cases between 5 and 8 g/dm3 . Wines in general possess a little fewer acids than must, by Regulation the least acidity, expressed as tartaric acid is for all kinds of wine 4.5 g/dm3 , because a part of tartaric acids sediments as salt (tartar) in the process of the alcohol fermentation. For win...

By M. B. RAJKOVIĆ, D. D. STANOJEVIĆ, I. D. NOVAKOVIĆ, D. V. TOŠKOVIĆ, M. M. SUDAR