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Cristian Costa, Lucian Lupu and Eduard Edelhauser

References [1]. Barlow A., Clarke R., Johnson N., Seabourne B., Thomas D. and Gal J., Effect of massage of the hamstring muscle group on performance of the sit and reach test, Br Journal of Sports Medicine, no.38, pp. 349-351, (2004). [2]. Bealko S. B., Alexander D.W., Chasko L. L. and Grayson R L, Mine rescue training facility inventory – compendium of ideas to improve, 2009. [3]. Conti R. S., Chasko L. L. and Stowinsky L. D., Mine rescue training simulations and technology, Proceedings of the Fifth Annual Conference of the International

Open access

Violeta Cristina Dumitru

International Conference on Robotics and Automation,, pg. 1573-1579, 1997. 4. Reynaerts, D., Peirs, J., Van Brussel, H., “Shape memory microactuation for a gastro-intestinal intervention system,” Sensors and Actuators, A: Physical, vol. 77, pp. 157, 1999. 5 Guthart, G., Salisbury, K., „The intuitive tele-surgery; overview and application” IEEE International Conference on Robotics and Automation, pp. 618-621, 2000. 6. Dumitru V., PHD thesis: Poli-articulated mechanical system used in medical domain, Craiova, 2011. 7 Dumitru V., Modular System for

Open access

András Szabó

and Materials Vols. 336-338 (2013), pp. 1907-1912, ISBN:9783037857519. [12] Yanmaz, E.; Bettstetter, C., “ Channel measurements over 802.11a-based UAV-to-ground links”, GLOBECOM Workshops (GC Wkshps) IEEE , 2011, ISBN:978-1-4673-0039-1. [13] Wan, J., Suo, H., Yan, H., Liu, J., “A general test platform for cyber-physical systems:unmanned vehicle with wireless sensor network navigation”, 2011 International Conference on Advances in Engineering , http://ac.els-cdn.com/S1877705811054658/1-s2.0-S1877705811054658-main.pdf?_tid=3c747952-6b8b-11e5-bae9

Open access

Aloizs Lešinskis and Rafał Chatys

knowledge: Signals, signs and symbols, and their distinctions in human performance models,” IEEE Transactions on Systems, Man, and Cybernetics , vol. SMC-13, issue 3, pp. 257–266, 1983. https://doi.org/10.1109/TSMC.1983.6313160 [9] A. M. Gentile, “A working model of skill acquisition with applications to teaching,” Quest , vol. 17, pp. 3–23, 1972. https://doi.org/10.1080/00336297.1972.10519717 [10] A. M. Gentile, “Skill acquisition: Action, movement, and neuromotor processes,” in Movement science: Foundations for physical therapy , 2nd ed., H. Carr and R

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Vitālijs Pavelko and Aleksandr Nevskij

identification,” Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences , vol. 359, issue 1778, pp. 131–149, 2001. [9] M. N. Rezai, J. E. Bernard, and J. M. Starkey, “Empirical modal analysis,” The Shock and Vibration Digest , vol. 15, 1983. [10] D. J. Ewins, Modal Testing: Theory, Practice and Application . Baldock: Research Studies Press, UK, 2003. [11] M. W. Halling, I. Muhammad, and K. C. Womack, “Dynamic testing for condition assessment of bridge bents,” Journal of Structural Engineering, ASCE, vol. 127

Open access

Oleg Klyus and O. Bezyukov

Abstract

The paper presents the laboratory test results determining physical parameters of fuel mixture made up of petroleum diesel oil, rapeseed oil methyl esters (up to 20%) and water (up to 2.5%). The obtained parameters prove that adding bio-components (rapeseed oil methyl esters) and water to fuel does not result in deterioration of their physical and chemical properties and are comparable to base fuel parameters, namely petroleum diesel oil. The mixture was a subject of bench testing with the use of a self-ignition engine by means of pre-catalytic fuel treatment. The treatment process consisted in fuel - catalytically active material direct contact on the atomizer body. At the comparable operational parameters for the engine, the obtained exhaust gases opacity was lower up to 60% due to the preliminary fuel mixture treatment in relation to the factory-made fuel injection system using petroleum diesel oil.

Open access

Magdalena Tutak

Abstract

One of the most common and most dangerous hazards in underground coal mines is fire hazard. Mine fires can be exogenous or endogenous in nature. In the case of the former, a particular hazard is posed by methane fires that occur in dog headings and longwalls. Endogenous and exogenous fires are large hazard for working crew in mining headings and cause economics losses for mining plants. Mine fires result in emission of harmful chemical products and have a crucial impact on the physical parameters of the airflow. The subject of the article concerns the analysis of the consequences of methane fires in dog headings. These consequences were identified by means of model-based tests. For this purpose, a model was developed and boundary conditions were adopted to reflect the actual layout of the headings and the condition of the atmosphere in the area under analysis. The objective of the test was to determine the effects of methane fires on the chemical composition of the atmosphere and the physical parameters of the gas mixture generated in the process. The results obtained clearly indicate that fires have a significant impact on the above-mentioned values. The paper presents the distributions for the physical parameters of the resulting gas mixture and the concentration of fire gases. Moreover, it shows the distributions of temperature and oxygen concentration levels in the headings under analysis. The methodology developed for the application of model-based tests to analyse fire events in mine headings represents a new approach to the problem of investigating the consequences of such fires. It is also suitable for variant analyses of the processes related to the ventilation of underground mine workings as well as for analyses of emergency states. Model-based tests should support the assessment of the methane hazard levels and, subsequently, lead to an improvement of work safety in mines.

Open access

Aneta Grodzicka and Jan Szlązak

Abstract

The authors of the current study undertook the subject of the analysis features of the mining rescuer as a member of the ranks of the rescue, with particular emphasis on the following parameters: heart rate, body weight, height, BMI, age and seniority in the mining and rescue. This publication concerns the analysis of the test results of these characteristics rescuer as a potential member of the ranks of the rescue, taking into account its risk appetite, stress resistance, attitude towards life, the role of the team, teamwork, attitude to work, motivation to work and physical fitness.

Open access

Zdenko Tkáč, Marek Halenár and Ján Kosiba

for the testing of hydraulic pumps and liquids. Tribology in Industry, 40(1). pp. 149-155. Tóth, F., Rusnák, J., Kadnár, M. and Váliková, V. (2014). Study of tribological properties of chosen types of environmentally friendly oils in combined friction conditions. Journal of Central European Agriculture, 15(1) pp. 185-192. Tulík, J., Hujo, Ľ., Stančík, B. and Ševčík, P. (2013). Research of new ecological synthetic oil-based fluid. Journal of Central European Agriculture, 14(4), pp. 1384-1393. Will, D., Gebhardt, N

Open access

Dawid Szurgacz and Jarosław Brodny

., Brodny, J. (2017). An innovative system to test components of mining machinery control hydraulics. SGEM 2017, Conference proceedings, 17(13), pp. 47-54. Tutak, M., Brodny, J. (2017). Determination of Particular Endogenous Fires Hazard Zones in Goaf with Caving of Longwall. IOP Conf. Series: Earth and Environmental Science 95 (2017). Tutak, M. (2017a). Analysis of varying levels of methane emissions from coal mines in Poland. SGEM2017 Vienna GREEN Conference Proceedings, 17(43), pp. 301-308. Tutak, M. (2017b). Assessment