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JA, Muller JE, Falk E, et al. Terminology of high-risk and vulnerable coronary artery plaques. Eur Heart J . 2004;24:1077-1082. 5. Ross R. Atherosclerosis is an inflammatory disease. Am Heart J . 1999;138:S419-S420. 6. Dirksen MT, van der Wal AC, van der Berg FM, van der Loos CM, Becker AE. Distribution of inflammatory cells in atherosclerotic plaques relates to the direction of flow. Circulation . 1998;98:2000-2003. 7. Traub O, Berk BC. Laminar shear stress: mechanisms by which endothelial cells transduce an atheroprotective force. Arterioscler Thromb Vasc

References [1] Amin A.A., Khan S.M. and Islam A.U. (2013): An experimental study of shear stress distribution in a compound meandering channel . – American Journal of Civil Engineering. Doi: 10.11648/j.ajce.20130101.11. [2] Ansari K. (2011): Boundary shear stress distribution and flow structures in trapezoidal channels . – Dissertation, University of Nottingham. [3] Sin K.S, Thornton C.I, Cox A.L. and Abt S.R. (2010): Methodology for Calculating Shear Stress in a Meandering Channel . – Master thesis, Colorado State University. [4] Schlichting H. (1987

REFERENCES 1. Ross R. Atherosclerosis—an inflammatory disease. N Engl J Med . 1999;340:115-126. 2. Hansson GK. Inflammation, atherosclerosis, and coronary artery disease. N Engl J Med . 2005;352:1685-1695. 3. VanderLaan PA, Reardon CA, Getz GS. Site specificity of atherosclerosis: site-selective responses to atherosclerotic modulators. Arterioscler Thromb Vasc Biol . 2004;24:12-22. 4. Malek AM, Alper SL, Izumo S. Hemodynamic shear stress and its role in atherosclerosis. JAMA . 1999;282:2035-2042. 5. Stone P, Coskun A, Yeghiazarians Y, et al. Prediction of

Abstract

The article describes the theory of cavitation at high values of shear stress in a viscous liquid. For this purpose, a spatial model of two cylindrical shells imposed concentrically was designed. In the narrow gap between the cylinders the temperature, density and viscosity of liquid is constant. Shear stress is induced by the rotary motion of the inner cylinder, resulting in a change of velocity and pressure fields. Due to the pressure drop between the cylinders there is a precondition to the formation of cavitation bubbles at the point of the lowest static pressure. To verify the assumption was made CFD model based on simplified physical model, through which cavitation was qualitatively and quantitatively assessed. In this paper the results of the numerical solution will be presented alongside with basic form of experimental device for physical generation of cavitation at high values of shear stress.

References Hoshmandi F., Zahiri A., Dehghani A. A. and Meftah Halghi M., 2014, “Comparison of Estimation of Shear Stress Distribution in Open Channels”, Journal of Soil and Water Protection Research, 21(5), 284-295. I. Nezu, and H. Nakagawa, 1993, “Turbulence in open-channel flows”, Rotterdam, The Netherlands: Balkema. D. W. Knight, J. D. Demetrious, and M. E. Hamed, 1984, “Boundary shear in smooth rectangular channel”, J. Hydraulic Eng., 110(4), 405-422. A. Tominaga, I., Nezu, K. Ezaki, and H. Nakagawa, 1989, “Threedimensional turbulent structure in straight

References 1. Benedek T. The Link between Periodontal Disease, Inflammation and Atherosclerosis- an Interdisciplinary Approach. Journal of Interdisciplinary Medicine 2017;2:11-16 2. Zahnd G, Schrauwen J, Karanasos A, Regar E, Niessen W, Walsum T, et al. Fusion of fibrous cap thickness and wall shear stress to assess plaque vulnerability in cor- onary arteries: a pilot study. Int J Comput Assist Radiol Surg 2016;11:1779-1790 3. Nyulas T, Chiț u M, Mester A, Jáni L, Condrea S, Opincariu D, et al. Computed Tomography Biomarkers of Vulnerable Coronary Plaques

, TUCEB, March 2002 . [4]. ***, PIARC (Permanent International Association of Road Congresses), “Bituminous Materials with a High Resistance to Flow Rutting” , PIARC Technical Committee on Flexible Roads, Reference 08.03.B, 1995 . [5]. M., AMERI-GAZNON şi D.N., LITTLE, “Permanent Deformation Potential in Asphalt Concrete Overlay over Portland Cement Concrete Pavements” , Research Report 452-3F, Texas Transportation Institute, nov. 1988 . [6]. M., AMERI-GAZNON şi D.N., LITTLE, “Octahedral Shear Stress Analyses of an ACP Overlay on a Rigid Base” , Journal of the

, Richardt G, Abdel-Wahab M. The fate of incomplete scaffold apposition of everolimus-eluting bioresorble scaffolds: A serial optical coherence tomography analysis. J Cardiol . 2017;pii:S0914-5087(17)30094-1. 7. Duraiswamy N, Jayachandran B, Byrne J, Moore JE Jr, Schoephoerster RT. Spatial distribution of platelet deposition in stented arterial models under physiologic flow. Ann Biomed Eng . 2005;33:1767-1777. 8. DePaola N, Gimbrone MA Jr, Davies PF, Dewey CF Jr. Vascular endothelium responds to fluid shear stress gradients. Arterioscler Thromb . 1992;12:1254-1257. 9

heating time, were selected. Their values at different levels are given in Table 3 . The output parameter predicting strength of weld joint is tensile shear stress. Table 3 Process parameters and their values at different levels S. No. Process parameters Unit Level 1 Level 2 Level 3 1 Electrode diameter (A) mm 6 7 8 2 Welding current (B) KA 7 8 9 3 Heating time (C) ms 7 8 9 3.3 Selection of Orthogonal Array According to the Taguchi method, a system with 3 parameters and 3 levels can be performed with 27 experiments [ 17 ]. In this work, L27 orthogonal array was

Abstract

The paper presents numerical and experimental research on glulam delamination in a double lap connection with predominant shear stresses. Laboratory tests and wide literature survey enabled to determine timber and glue joint parameters. Cohesive zone theory, generally used for epoxy matrix and fiber reinforced composites, was adopted to modelling glue layer delamination in glulam elements. Numerical models were validated with laboratory tests.