Vojnotehnicki glasnik / Military Technical Courier

25-45

Authors: Radonjić Vojkan M., Đukić Slobodan R., Jovanović Danko M., Ćirić Milenko P.

The work was conducted to investigate the manner of improving the technology of intermediate level maintenance of radio-relay devices. The Improved model of maintenance techniques will be applied in practice during corrective maintenance of radio-relay devices. The results obtained during the application of the proposed model will serve to draw conclusions about the effectiveness of the defined model of maintenance technology.

68-98

Authors: Milenkov Marjan A., Dronjak Milan Ž., Parezanović Vladan D.

There are a number of definitions of logistics and logistics systems through which different authors, at different times and military, economic, market and social circumstances, tried to explain the essence of logistics as a branch of the art of war, business philosophy, scientific discipline, etc. Although logistics ia a very old area of human activity, which was improving along with the development of civilisation, its terms are still in the process of developing and they should be accepted as they appear and how they appear in different human activities.

116-134

Authors: Luburić Veselin D., Bakrač Saša T., Milanović Miško M.

This paper analyzes the impact of planning and designing large power systems on the environment, such as the DSP 400 kV optical cable from the Montenegrin coast to Pljevlja. It is a very complex and multidisciplinary project, and involves the analysis of a number of important factors and cause-effect relationships that such a system can produce. The analysis was guided by the fact that this is an atypical example, from the planned and implemented aspect unknown both on the national and wider regional level. For this reason, it is challenging to shed light on the consequences of any such system and structure, which is specific in many ways, and whose repercussions in the near future are still vague. The paper discussed European and international experiences as well as their perceptions of problems with similar solutions in practice.

166-191

Authors: Rutić Srđan Z., Inđić Dejan R.

The article describes the role and the place of the Serbian Army in the risk management of accidents involving dangerous substances as well as the activities such as taking measures for controlling chemical hazards, protection from chemical contamination and elimination of consequences. A method of plan drafting for the risk management in garrisons in case of accidents involving dangerous substances has been presented. Taking into account all the elements of the assessment of potential accidents involving dangerous substances and their mutual influence serves as a basis for planning and organising preparedness of units and institutions of the Army for accidents involving dangerous substances. The Serbian Army has a significant place and role in dealing with accidents with hazardous materials.

215-223

Authors: Stopić Milena D.

Nanotechnology belongs to the key innovative technologies for powder production. Ultrasonic spray pyrolysis is a versatile method for the formation of nanosized particles of metals, oxides and composites. This work deals with Ag, Cu and Au nanoparticles formed by ultrasonic spray pyrolysis using the horizontal and vertical reactor. Furthermore, a direct synthesis of Ru-TiO2 and RuO2-TiO2 nanoparticles with the core and shell structure was investigated. The molar fractions of precursors, solvent type, and the process temperature play the crucial role in the formation of core and shell structures. Moreover, the influence of the reaction parameters (temperature, residence time, solution concentration and ultrasonic frequency) on the morphological characteristics of the prepared nanoparticles was studied. A decrease in the solution concentration decreases the final nanoparticle size. An increase in temperature from 150°C to 1000°C leads from an irregular form to a more spherical one. Subsequently, a model of metallic nanoparticle formation from an aerosol droplet could be proposed. Using ultrasonic spray pyrolysis, ideal spherical metallic particles were obtained at temperatures above the melting point. A scanning mobility particle sizer (SMPS) was used for the on-line determination of nanoparticle size distribution. The collection of nanosized particles was performed in an electrostatic field. The scale up of the ultrasonic spray pyrolysis method was successfully applied for the synthesis of silver powder from a water solution of silver nitrate.

29-41

Authors: Leonid I. Gretchihin, Svetlana D. Latushkina, Vikentiya M. Komarovskaya

One has substantiated the existence of a potential barrier at the interface of interacting particles. The formation of the potential barrier in the contact area significantly increases the binding energy of the binary interaction. It has been shown which sets of different interactions should be taken into account when establishing the energy of binary binding.

63-86

Authors: Nikola M. Jaćimović, Bratislav Ž. Planić

This paper analyzes the implementation of cryptology algorithms in order to obtain the best possible performance in terms of speed, thus providing support for protected communication between two participants with the smallest possible impact on the performance of the given network infrastructure. The paper explains the difference between the hardware and software implementation of encryption algorithms. It shows the main characteristics of FPGA chips and the advanced technics of the VHDL design language that were used for the implementation of crypto algorithms. The AES-256 encryption algorithm is selected for the implementation since it has proven to be good both in hardware and in software versions. The development environment used is the Xilinx ISE Design Suite as well as the development boards Xilinx Spartan SP-605th and Xilinx Kintex KC-705th. All the results correspond to the devices that contain Spartan®-6 and Kintex®-7

114-136

Authors: Nenko S. Brkljač, Marko D. Andrejić, Slobodan S. Ilić

This paper presents the results of the research into necessary capabilities (knowledge and skills) in the process of equipping the army. The necessary professional capabilities have been analyzed from the viewpoint of protecting the interests of customers and end-users of armament and military equipment.The capabilities are grouped according to the key activities of the process and analyzed through the following activities: planning and programming, defining tactical and technical requirements, contract making, research, development, testing, production, procurement, operational use, support and end of service life of armament and military equipment. The capabilities have been described in two ways, through a detailed description of a necessary capability, or through a description of the effect required from qualified personnel engaged in the process of equipping the army.

160-175

Authors: Adnan M. Mulaosmanović

Smart instrumentation protocols are designed for applications where data is collected from instruments, sensors and actuators by digital communication technology. The HART protocol is a typical smart instrumentation Fieldbus. More than 40 million HART devices are installed worlwide, and the HART technology is the most widely usef field communication protocol for intelligent process instrumentation. Two communication channels supported by HART devices are the current loop 4-20 mA, and the HART digital channel. A digital communication channel simultaneously transmits information along the same wire and without disruption to the analog channel. This bi-directional communication channel provides a real time access to available data on HART smart devices. This paper deals with the properties and the application of the HART protocol.

200-214

Authors: Paun J. Bereš, Kristian P. Bereš, Sreten S. Cvetković

The paper presents learning and the heuristic method in educating Civil Defense staff with a view to making appropriate decisions in emergency situations and a state of emergency with special reference to the use of heuristic models in the education of emergency teams and the command of the Army of Serbia. It is designed for command and teaching staff, as well as for the personnel of civil defense, the protection and rescue system (Department for Emergency Situations) and local governments (district chief executives, mayors and mayors-commanders and commanding officers of the Army of Serbia that can be employed in emergency situations during the protection and rescue of people and materiel. The heuristic approach to problem solving and learning should provide the training of command personnel from the local to the national levels in making adequate decisions after the proclamation of emergency and a state of emergency in parts of the territory, or across the territory of the Republic of Serbia.

240-261

Authors: Dragan M. Vučković

Images show North Korean vessel firing new SSM; India fires canister-launched Agni 5…and Pakistan tests Ra’ad; Iranian cruise missile unveiling raises questions about range; China starts work on first indigenous aircraft carrier; Local contender enters Emirati 8X8 race; Norinco unveils AR-3 MRL; Fortress mentality: Focus on anti-access coastal defences; Lighten up: a new generation of guided infantry missiles grows up.

278-281

Authors: Miloš M. Jevtić

Optimal features for concealed carry weapons The specificity of jobs and tasks that require concealed carrying of weapons by officials require specific criteria when choosing personal weapons specialist.

304-319

Authors: Nebojša N. Gaćeša

The instructions to authors about the article preparation for publication in the Military Technical Courier are based on the Act on scientific journal editing of the Ministry of Science and Technological Development of the Republic of Serbia, No 110-00-17/2009-01 of 9th July 2009. This Act aims at improving the quality of national journals and raising the level of their compliance with the international system of scientific information exchange. It is based on international standards ISO 4, ISO 8, ISO 18, ISO 215, ISO 214, ISO 18, ISO 690, ISO 690-2, ISO 999 and ISO 5122 and their national equivalents. The Military Technical Courier / Vojnotehnički glasnik (www.vtg.mod.gov.rs/index-e.html, втг.мо.упр.срб, ISSN 0042-8469 – print issue, е-ISSN 2217-4753 – online, UDC 623+355/359) is a multidisciplinary scientific journal of the Ministry of Defence of the Republic of Serbia. It publishes scientific and professional papers as well as technical data about contemporary weapon systems and modern military technologies. Offering a logistic system support, the Courier is a part of a unique technical support to the Army services in the field of fundamental, applied and development research. It also deals with production and use of weapons and military equipment as well as with theoretical and practical achievements leading to professional development of the personnel of the Ministry of Defence and the Army of the Republic of Serbia.