Small and medium sized enterprises (SMEs) among the essential economic cornerstones of our age, where many factors are constantly changing. Social paradigm shifts both diverse complex. In fact, increasing number SMEs as a result this complexity also constitutes reason for complex structure. So much so that while entrepreneurs agents social change, driving force change is SMEs. There always oppo...

A severe case of stenosis in coronary arteries results in turbulence in the blood flow which may lead to the formation or progression of atherosclerosis. This study investigated the turbulent blood flow in a coronary artery with rigid walls, as well as 80% single and double stenoses on blood flow. A finite element-based software package, ADINA 8.8, was employed to model the blood flow. The hemo...

KM in practice seems to be an effort that comprises all kinds of different activities, measures and technologies. Unfortunately, it seems that organizations do not pay very much attention to the strategic value of their initiatives. Thus, there is a lack of clear distinction between different KM strategies or dimensions of strategies that can be used to characterize one particular KM strategy. ...

In recent years, the use of offshore wind turbines has been considered on the agenda of the countries which have a significant maritime boundary due to more speed and stability of wind at sea. The aim of this study is to investigate the effect of wind turbulence on the aero-hydrodynamic behavior of offshore wind turbines with a monopile platform. Since in the sea, the wind turbine structures ar...

In this study, turbulent compressible gas flow in a rectangular micro-channel is numerically investigated. The gas flow assumed to be in the subsonic regime up to Mach number about 0.7. Five low and high Reynolds number RANS turbulence models are used for modeling the turbulent flow. Two types of mesh are generated depending on the employed turbulence model. The computations are performed for R...

There are a number of systems in which supercritical cryogenic fluids are used as coolants or propellant fluids. In some modern military aircraft, the fuel is pressurized above its critical point and used as a coolant to remove heat from the aircraft engine. Accurate prediction of heat transfer coefficients to turbulent flows of supercritical fluids is essential in design of such systems. One o...

McCaffrey, Katherine (PhD, Atmospheric and Oceanic Sciences) Characterizing Ocean Turbulence from Argo, Acoustic Doppler, and Simulation Data Thesis directed by: Baylor Fox-Kemper, Assistant Professor, Department of Geological Sciences, Brown University, and the Cooperative Institute for Research in Environmental Sciences, University of Colorado at Boulder Turbulence is inherently chaotic and u...