The target scattering characteristics in microwave band are necessary to be researched for Orbital-Angular-Momentum (OAM) wave-based radar applications. A theoretical description of electromagnetic (EM) from a typical by OAM waves is proposed this paper. First, decomposed into plane the spectral domain with different elevation and azimuth angles. Then, form each wave determined through coordina...

A real coded genetic algorithm is implemented for the optimization of actuator parameters for cylinder drag minimization. We consider two types of idealized actuators that are allowed either to move steadily and tangentially to the cylinder surface (" belts "), or to steadily blow/suck with a zero net mass constraint. The genetic algorithm we implement has the property of identifying minima bas...

The cylindrical flow around a cylinder is present in several engineering problems. Moreover, the pattern rotating more complex than that cylinder. In this paper, at different speed ratios investigated by means of large-eddy simulations. particular, lift coefficient CL, drag CD, lift-to-drag ratio k, Strouhal number St, field each section, and three-dimensional eddy structure are compared ratios...

Flows past symmetric two-dimensional bluff bodies such as the circular cylinder, the square cylinder, and the normal flat plate produce large separation bubbles which (in the steady restriction) may become very elongated at comparatively low Reynolds numbers. The present work focuses on the steady/symmetric wake of a square cylinder at Re ≤ 300, which loses stability to anti-symmetric two-dimen...

Entrohemorrhagic Escherichia coli is a human pathogen that causes hemorrhagic colitis due to its verotoxin. It is an agent with food poisoning importance; a significant number of cases subsequntly develop hemolitic uremic syndrome (HUS) which is probably the most common cause of renal failure in childeren and occasionally resulting in death. Inhibition of bacterial growth in food is the most im...

Entrohemorrhagic Escherichia coli is a human pathogen that causes hemorrhagic colitis due to its verotoxin. It is an agent with food poisoning importance; a significant number of cases subsequntly develop hemolitic uremic syndrome (HUS) which is probably the most common cause of renal failure in childeren and occasionally resulting in death. Inhibition of bacterial growth in food is the most im...

The transient liquid crystal technique is nowadays widely used for measuring the heat transfer characteristics in gas turbine applications. Usually, the assumption is made that the wall of the test model can be treated as a flat and semi-infinite solid. This assumption is correct as long as the penetration depth of the heat compared to the thickness of the wall and to the radius of curvature is...

The Tinius Olson Universal Testing machine (see Figure 1.1) is capable of loading a test specimen to a maximum load of 60,000 lb. The load applying section of this machine consists of three thick metal plates. The top and the bottom plates are rigidly connected together with thick tie rods. This assembly is connected on the bottom to a hydraulic cylinder which is contained within the base of th...