International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

Table of Contents

• THEORETICAL FOUNDATIONS OF SECURITY

  • MATRIX METHOD OF ASSESSING RISK CONFORMITY IN THE CONTEXT OF ENVIRONMENTAL SECURITY

    • Baev G.
    • Dimitrov M.
    • Dimitrov I.

    pg(s) 136-137

    • Abstract
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    The research offers a simple matrix model of analysis for ranking risk levels in critical and emergency situations. The leading principles, which should be taken into consideration can be arranged in a group of steps, for example the qualification and grading of imminent danger and the level of endangerment of key assets, determining of the processes which can lead to harm and also the value of the structures susceptible to damage and the damage itself.

  • “NON-LETHAL WEAPONS” – A CONCEPT DIFFICULT TO DEFINE

    • Tumbarska A.

    pg(s) 138-141

    • Abstract
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    More than 50 years after introducing the term "non-lethal weapons" (NLWs) and over 20 years of adopting the non-lethality policy, there is still no commonly accepted definition of this class of weapons, and the term "non-lethal weapons" is still subject to debates. This problem affects almost all aspects in the field of non-lethal weapons and is cause of most incorrect interpretations and contradictions connected to NLWs. The purpose of this paper is to discuss and summarize the purpose, features and potential of NLWs, in order to help clarify some existing ambiguities, thus contributing to the proper understanding of the modern “non-lethal weapons” concept.

• NATIONAL AND INTERNATIONAL SECURITY

  • FEATURES IN THE TRAINING OF MILITARY UNITS OF SPECIAL OPERATIONS FORCES IN THE FIGHT AGAINST TERRORISM

    • Geoorgiev M. V.
    • Neshev I. N.

    pg(s) 142-146

    • Abstract
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    Much has been said and wrote during the past year on how best the international community must oppose the expansion of geography of international terrorism.The growth of terrorism to such an unprecedented scale requires the intergration of the forces of the whole civilized world to fight it. For the successful implementation of this struggle is necessary to use all possible means: political, economic, legal and military. This imposes the implementation of a specialized training program of Bulgarian Special Operations Forces.

  • TACTICAL READINESS IN EXTREME CONDITIONS

    • Popov G.
    • Angelov P.

    pg(s) 147-148

    • Abstract
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    This paper discusses tactical readiness as a complex of knowledge, skills and habits for the application of tactical means and methods of action in extreme conditions, individually and in small groups and formations on the enemy’s territory, or in situations when being surrounded or have fallen into captivity, escape from captivity and from the opponent’s territory under a complex impact on their part.

  • GEOENERGETIC ASPECTS OF THE TERRITORIAL DISPUTE BETWEEN THE REPUBLIC OF SLOVENIA AND THE REPUBLIC OF CROATIA

    • Dimitrov M.

    pg(s) 149-153

    • Abstract
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    The report analyzes the territorial dispute between the Republic of Slovenia and the Republic of Croatia in the context of the development of the main energy projects in Eastern Europe. An emphasis is placed on the Final Award of the Permanent Court of Arbitration regarding the maritime border between the two countries in the Piran Bay and especially on the decision for establishment of a "Junction Area", allowing physical connection between the territorial sea of Slovenia with international waters, through the territorial sea of Croatia and the influence of this decision on the opportunities for implementation of energy projects in the region. Additionally, the importance of the North-South Gas Corridor is presented as well as how it relates to the Baltic Pipe project and the Southern Gas Corridor. The report highlights the competition between some of the energy projects in the region. As a result, it is revealed that behind the territorial dispute between Slovenia and Croatia, falsely perceived as an insignificant, lay the confronting interests of USA, Germany and the Russian Federation, further transferred to the regional level, including through the interests of powerful energy corporations as ExxonMobil, Gazprom and OMV, turning the local dispute into a geopolitical vortex.

• TECHNICAL FACILITIES FOR ENSURING SECURITY

  • MEASUREMENTS OF SPEED AND DIAMETERS OF DROPLETS OF FOGS WITH DEVICES, OPERATING ON THE BASIS OF THE SURFACE PHOTO-CHARGE EFFECT

    • Ivanov O.
    • Perez-Diaz J. L.
    • Mitova I.
    • Yordanova A.

    pg(s) 154-156

    • Abstract
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    This work is related to development of a new type of fog sensors and measurement devices. We study fogs, their properties, and especially their ability to clean different contaminants from the air, such as chemical, biological, radiological and nuclear (CBRN) agents. In that sense, fog can be used for effective counteraction to terrorist attacks and for prevention of industrial accidents and disasters. In this paper, we present the possibility for measurements of fog parameters using the Surface photo-charge effect (SPCE) and some results obtained in that way concerning size and speed of droplets. Knowledge of these fog parameters is important in order to gain a more practical insight about the optimization of the penetration and cleaning properties of fogs used for large scale decontamination.

  • INVESTIGATION OF VARIOUS COMBINATIONS OF MATERIALS USED IN ARMORED VESTS FOR KNIFE PENETRATION PROTECTION

    • Nikolova V.
    • Petkov St.

    pg(s) 157-159

    • Abstract
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    The report presents investigation of the protective characteristics against knife penetration of several combinations of materials used in armored vests. Experimental results for each combination obtained by testing with two types of knives at various energies of impact are analyzed and interpreted.

  • AN EXPERIMENTAL INVESTIGATION OF THE 122mm ARTILLERY SYSTEM FIRING ACOUSTIC FIELD

    • Yordanov N. K.
    • Trifonov T.
    • Simeonov I.

    pg(s) 160-162

    • Abstract
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    In the recent years, the battlefield acoustic exploration acquires a new dimension. This is due to the fact that modern weapons have a significantly increased distance of defeat, but the intelligence cannot detect such weapons at a sufficiently distance. In this connection the purpose of the present study is to investigate the near acoustic field of 122 mm artillery system firing. The collected with advanced technology equipment raw data were analyzed with the harmonic and wavelet analysis tools.

  • COMPARATIVE ANALYSIS OF THE ARMAMENT AND EQUIPMENT SUPPORT MODULES IN THE FIELD OF COMMAND AND CONTROL INFORMATION SYSTEMS OF NATO ARMIES

    • Antonov S. Il.

    pg(s) 163-167

    • Abstract
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    In the paper is made a comparative analysis of the armament and equipment support modules in the field of information systems for command and control of NATO armies and the main functions of each information system for maintenance of the logistical assurance.

    The classification of information systems is made depending on the integration capabilities with Microsoft products ,as well as depending on the capabilities of deploying emerging technologies such as remote monitoring, remote control, and more.

  • THE RESULTS OF BLAST LOADING OF REINFORCED CONCRETE SPECIMENS WITH VARYING FIBRE TYPES AND CONTENT

    • Petkov Y.
    • Ganev R.
    • Lilov I.

    pg(s) 168-170

    • Abstract
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    The experiment report presents the results of the field tests of fiber-reinforced concrete (FRC) and reinforced concrete specimens which were performed by research team from Faculty of Civil Engineering, Czech Technical University in Prague, Czech Republic in cooperation with the Czech Army corps in the military training area Boletice. The tests were performed using real scale reinforced concrete precast slabs (6×1.5×0.3m) with varying fibre content, fibre type, fibre strength and concrete strength class and 25 kg of TNT charges placed at a distance from the slab for better simulation of real in-situ conditions. The slabs were recorded using a high speed framing camera during the blast loading. The instrumentation enabled us to study the propagation of the blast shock wave through the material, propagation of the cracks on the soffit of the specimen and the final collapse of the middle part of the slab exposed to blast loading. The sequence of the structural behaviour is documented in detail and verified by numerical modelling using the LS-DYNA solver.

  • RESEARCH ALGORITHM FOR THE EFEICIENCY OF AN INDEPENDENT POWER SOURCE

    • Ivanova G. H.
    • Dimitrov V. I.

    pg(s) 171-173

    • Abstract
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    It has been created an algorithm that tracks the stages of constructing an independent chemical power source. It has been given consideration to the selection and design of the composite components, as well as the solving of construction tacks. Attention is paid to the mechanical-dynamic and climatic tests, which are carried out in order to prove the working capacity for both of the components and the whole unit as a final product.