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Quality of One-channel Telemetric ECG Sensor Signal in Maximum Exercise Stress Tests

R eferences [1] Marijon, E., Tafflet, M., Celermajer, D.S., Dumas, F., Perier, M.C., et al. (2011). Sports-related sudden death in the general population. Circulation , 124, 672-681. [2] Thompson, P.D., Franklin, B.A., Balady, G.J., Blair, S.N, Corrado, D., et al. (2007). Exercise and acute cardiovascular events placing the risks into perspective. A scientific statement from the American Heart Association Councilon Nutrition, Physical Activity, and Metabolism and the Councilon Clinical Cardiology. Circulation, 115, 2358-2368. [3] Popović, D

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Research Regarding Physical Testing in the Military Pentathlon at the 50 M Race with Obstacles

systems specify to the training in military pentathlon. The 23rd International Conference Knowledge-Based Organization , Vol. XXII, No. 1 , Sibiu, România: “Nicolae Bălcescu” Land Forces Academy Publishing House. Epuran, M. (2001). Psihologia sportului de performanţă. Bucureşti: FEST, 324-336. Harman, E. A. et al. (2008). Prediction of simulated battlefield physical performance from field-expedient tests. U.S. National Library of Military Medicine, Vol. 173 , 36-41. Jeong, C. S. (2006). Characteristics of performance-related physical fitness and

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Correlation between Compressive Strengths and Water Absorption of Fly Ash Cement Mortar Immersed in Water

R eferences 1. J. Li, X. Zhuang, E. Monfort and et al, “Utilization of coal fly ash from a Chinese power plant for manufacturing highly insulating foam glass: Implications of physical, mechanical properties and environmental features” Construction and Building Materials, Vol.175, 2018, pp.64-76. 2. P. Chindaprasirt, S. Homwuttiwong and V. Sirivivatnanon “Influence of fly ash fineness on strength, drying shrinkage and sulfate resistance of blended cement mortar” Cement Concrete Research, Vol. 34, 2004, pp.1087-1092. 3. B. Babu and R. Thenmozhi

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Plate Finite Element with Physical Shape Functions: Correctness of the Formulation

. 2007; 14:431-456. 4. Witkowski W., 4-node combined shell element with semi-EAS-ANS strain interpolations in 6-parameter shell theories with drilling degrees of freedom. Comp. Mech. 2009; 43(2):307-319. 5. Kączkowski Z., Plates-static calculations. (in Polish) Arkady: Warsaw, 1980. 6. Gilewski W., Gomuliński A., Physical shape functions in finite element analysis of moderately thick plates. Int. Journ. Num. Meth. Engrg. 1991; 32:1115-1136. 7. Bathe K.J., Dvorkin E., A formulation of general shell elements

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Comparison of Two Experiments Based on a Physical and a Torsion Pendulum to Determine the Mass Moment of Inertia Including Measurement Uncertainties

Abstract

To determine the mass-moment-of-inertia properties of devices under test with particularly small mass moments of inertia (some 10−4 kg m2), two measurement set-ups based on different measurement principles were developed. One set-up is based on a physical pendulum, the second set-up incorporates a torsion pendulum. Both measurement set-ups and their measurement principles are described in detail, including the chosen data acquisition and analysis. Measurement uncertainty estimations according to the Guide to the Expression of Uncertainty in Measurement (GUM) were carried out for both set-ups by applying Monte Carlo simulations. Both set-ups were compared using the same three devices under test. For each measurement result, the measurement uncertainties were estimated. The measurement results are compared in terms of consistency and the resulting measurement uncertainties. For the given devices under test, the torsion pendulum set-up gave results with smaller measurement uncertainties compared to the set-up incorporating a physical pendulum.

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Cabling Arrangement Influence on Repeatability of Immunity EMC Measurements

currents induced by radiation and injection. IEEE Transactions on Electromagnetic Compatibility 34 (3), 360-362. ANALOG DEVICES, Inc. (2003) Low cost DC-500 MHz, 92 dB logarithmic amplifier AD8307. Retrieved November 2003, from http://www.analog.com Electromagnetic compatibility (EMC) - part 4-3: testing and measurement techniques - radiated, radio-frequency, electromagnetic field immunity test. (1996). Slovak version of European standard. STN EN 61000-4-3.

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Study of the curative role of “Draas” in evacuating dunes threatening roads in the Lower Algerian Sahara: physical model on a smaller scale

Abstract

Sand drifting on road networks in the region of the Lower Algerian Sahara is one of the main problems for the sector. Machines are repeatedly deployed to overcome this phenomenon. The long experience acquired while dealing with the removal of sand from roads pushed us to focus on obstacles called “Draas”. The purpose of this study is to perform an optimization of these special protective structures called “Draas”, using a reduced physical model. Model tests were performed in flow channel. The principle of modeling the wind transport using a reduced model is to simulate the wind using a liquid stream while respecting the laws of hydraulic and sedimentological similarity. The results obtained are extrapolated to make a normal size prototype.

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Synthesis of Geopolymer Based Class-F Fly Ash Aggregates and its Composite Properties in Concrete

Abstract

This study explores the influence of alkali activators on the initiation of polymerization reaction of alumino-silicate minerals present in class-F fly ash material. Different types of fly ash aggregates were produced with silicate rich binders (bentonite and metakaolin) and the effect of alkali activators on the strength gain properties were analyzed. A comprehensive examination on its physical and mechanical properties of the various artificial fly ash aggregates has been carried out systematically. A pelletizer machine was fabricated in this study to produce aggregate pellets from fly ash. The efficiency and strength of pellets was improved by mixing fly ash with different binder materials such as ground granulated blast furnace slag (GGBS), metakaolin and bentonite. Further, the activation of fl y ash binders was done using sodium hydroxide for improving its binding properties. Concrete mixes were designed and prepared with the different fly ash based aggregates containing different ingredients. Hardened concrete specimens after sufficient curing was tested for assessing the mechanical properties of different types concrete mixes. Test results indicated that fly ash -GGBS aggregates (30S2-100) with alkali activator at 10M exhibited highest crushing strength containing of 22.81 MPa. Similarly, the concrete mix with 20% fly ash-GGBS based aggregate reported a highest compressive strength of 31.98 MPa. The fly ash based aggregates containing different binders was found to possess adequate engineering properties which can be suggested for moderate construction works.

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Measurement Uncertainty in Testing of Uniaxial Compressive Strength and Deformability of Rock Samples

. Geneva, Switzerland. European Co-operation for Accreditation. (1999). EA 4/02 Expression of the Uncertainty of Measurement in Calibration. Flack, D. (2001). Calipers and Micrometers. In Measurement Good Practice Guide No. 40. Teddington, Middlesex, UK: National Physical Laboratory. Lord, J. D., Morrell, R. M. (2010). Elastic modulus measurement-obtaining reliable data from the tensile test. Metrologia , 47, S41-S49. International Atomic Energy Agency. (2008

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Stability Studies of Torque Transducers

References British Standards (2008). Method for Calibration and Classification of Torque Measuring Devices . BS 7882-2008. International Standards Organization (1995). ISO GUM Document - Guide for Estimation and Expression of Uncertainty of Measurement . European Association for Accreditation of Laboratories (1997). Expression of Uncertainty of Measurement in Calibration . National Accreditation Board for Testing and Calibration Laboratories, India (2000

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