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. & Midha, V. (2008). A review on designing the waterproof breathable fabrics. Part-I: Fundamental principles and designing aspects of breathable fabrics. Journal of Industrial Textiles, 37, 225–262. [13] Ozcan, G. (2007). Performance evaluation of water repellent finishes on woven fabric properties. Textile Research Journal, 77, 265–270. [14] Ozen, I. (2012). Multi-layered breathable fabric structures with enhanced water resistance. Journal of Engineered Fibers and Fabrics, 7, 63–69. [15] Save, N. S., Jassal, M. & Agrawal, A. K. (2002). Polyacrylamide based breathable

Abstract

This paper presents the results of the studies of the structure and properties of ultrafine grained nickel 200 obtained by hydrostatic extrusion processes. Microstructure was characterized by means of optical microscopy and electron transmission microscopy. Corrosion resistance was studied by impedance and potentiodynamic methods using an AutoLab PGSTAT 100 potentiostat in 0.1 M Na2SO4 solution and in acidified (by addition of H2SO4) 0.1 M NaCl solution at pH = 4.2 at room temperature. Microhardness tests were also performed. The results showed that hydrostatic extrusion produces a heterogeneous, ultrafine-grained microstructure in nickel 200. The corrosive resistance tests showed that the grain refinement by hydrostatic extrusion is accompanied by a decreased corrosive resistance of nickel 200.

Abstract

In this article, results of experimental studies concerning the relief of a city car electric drive by means of hydrostatic drive support are presented. Experimental studies were performed using a laboratory station built for this particular purpose. Studies of basic properties of elements of hydraulic system and resistances in the mechanical system were performed. The results of experimental studies of a chosen sub-assembly of hydrostatic drive (i.e. hydro-pneumatic battery) are given. The resistances within mechanical system (flywheel) were determined.

In the considered hybrid drive, electric drive is cyclically supported by hydrostatic drive during acceleration or regenerative braking of the vehicle. The results of experimental studies presented in this article were obtained on a designed and built laboratory station representing a model of a lightweight delivery van for city traffic and equipped with the studied hybrid drive. The obtained results suggest that there is a possibility considerably to increase the effectiveness of energy conversion in the electric drive of the vehicle by means of hydrostatic support. By applying the hydrostatic support in the electric drive, the load on the electric battery decreased, which positively influences the length of operation time.

References [1] Singh, O. P. (1987). Stain removal characteristics of fabrics and stain-resistance/release finishing. Textile Dyer & Printer, 20(25), 24-27. [2] Duschek, G. (2001). Emissionsarme und APEO-FRIE Fluorcarbon_Austrustung. Melliand Textilberichte, 82(7/8), 135-213. [3] Ma, M., Hill, R. M. (2006). Superhydrophobic surfaces. Current Opinion in Colloid & Interface Science, 11(4), 193-202. [4] Han, D., Steckl, A. J. (2009). Superhydrophobic and oleophobic fibers by coaxial electrospinning. Langmuir, 25(16), 9454-9462. [5] Yoon, H., Park, J. H., Kim, G. H

References 1. Dong Wencai, Guo Rixiu: Effects of Different Air Injection Techniques on Resistance of Stepped Planing Boat [J]. Shipbuilding of China, 2000, 41(2), pp. 8-14 2. Dong Wencai,Guo Rixiu: Study on the mechanism of resistance reduction to the stepped planing craft by air injection [J]. Journal of Ship Mechanics, 2002, 6(6), pp.55-61 3. Dong Wencai, Guo Rixiu: Experimental investigation on the resistance reduction of stepped planing craft by formation of air cavity [J]. Journal of Hydrodynamics, 2002, 17(4), pp. 440-447 4. Xia Xiang: Matching performance

Modeling of Planing Boats with Asymmetric and Steady Condition, Proceedings of the 9th Conference on High Speed Marine Vehicles, Naples, Italy, 2011. 5. Algarin R., Tascon, O.: Analysis of Dynamic Stability of Planing Craft on the Vertical Plane, Ship Science and Technology, Vol. 8, No. 15, 2014. 6. Bertorello C, Olivero L.: Hydrodynamic Resistance Assessment of non-monohedral planing hull forms based on Savitsky’s methodology, Australian Journal of Mechanical Engineering, Vol. 4, No. 2, 209-204, 2007. 7. Brizzolara S, Sera F. Accuracy of CFD codes in the Prediction of

Abstract

The safety assessment of the Pacoima arch dam is investigated in this paper. A Load – Resistance (L-R) method was used to ensure that the dam is safe or if it is at risk of failure. The “probabilistic design system” ANSYS finite element software was used to calculate the probability of failure. The Monte Carlo (MC) method with 50,000 iterations utilized for simulation and the Latin Hypercube method were used for Sampling. Input random variables with normal distribution and coefficient of variation of 15% due to uncertainties were considered and the six random variables used are the concrete modulus of elasticity, Poisson’s ratio of concrete, concrete mass, up-stream normal water level of the reservoir, and the allowable tensile and compressive strength of the concrete. Linear elastic behavior was assumed for the constitutive law of concrete material and if the stress exceeds the allowable stress of the concrete this is considered as a failure limit state. The maximum and minimum principal stresses were considered as the output parameter. Dam body safety was investigated only under self-weight and upstream hydrostatic pressure at the normal water level. The probability of failure of the dam body system was determined as β system=3.98, the safety index as pf system =3.42×10−15 and the dam is at risk of failure. The first and third principal stresses in the dam body were also S1max=2.03MPa and S3min=4.6MPa, respectively for the worst case of MC simulation.

immersion on postexercise parasympathetic reactivation. Am J Physiol-Heart C, 2009; 296: H421-H427 Bushman BA, Flynn MG, Andres FF, Lambert CP, Taylor MS, Braun WA. Effect of 4 wk of deep water run training on running performance. Med Sci Sport Exercise, 1997; 29: 694-699 Colado JC, Garcia-Masso X, Gonzalez LM, Triplett NT, Mayo C, Merce J. Two-leg squat jumps in water: an effective alternative to dry land jumps. Int J Sport Med, 2010; 31: 118-122 Colado JC, Tella V, Travis Triplett N, Gonzalez LM. Effects of a short-term aquatic resistance programe on strength and body

: 325-376. Evensen P. C., Solheim H., Høiland K., Stenersen J. 2000. Induced resistance of Norway spruce, variation of phenolic compounds and their effects of fungal pathogens. Forest Pathology , 30: 97-109. Kermasha S., Goetghebeur M., Dumont J. 1995. Determination of phenolic compound profiles in maple products by high-performance liquid chromatography analyses. Journal of Agricultural Food Chemistry , 43: 708-716. Kryczyński S. 2000. Podstawy fitopatologii. Warszawa, Fundacja Rozwój SGGW. Obst J. R. 1998. Special (secondary) metabolites from wood. [w:] Bruce A

6 References [1] EN 20811 European Standard. Textiles – determination of resistance to water penetration – Hydrostatic pressure test. 1992. [2] EN 13795 European Standard for Surgical Drapes, Gowns and Clean Air Suits. 2011. [3] Aslan, S., Kaplan, S., & Çetin, C., 2013. An investigation about comfort and protection performances of disposable and reusable surgical gowns by objective and subjective measurements. The Journal of the Textile Institute , 104(8), pp.870-882, DOI:10.1080/00405000.2013.764754 10.1080/00405000.2013.764754 [4] Kim, H. S., 2003. In