Businesses that rely on a value-added network to provide information processing and communications services are only as secure as the network itself. The customer should understand the types of processing and control services provided by such vendors, and the potential exposures that use of these networks can entail. This article describes the control issues that must be addressed, the controls...

The swimming of a deformable uniform sphere is studied in second order perturbation theory the amplitude stroke. effect first reaction force on center mass velocity calculated linear response by use Newton’s equation motion. characterized dipolar admittance, which shown to be proportional translational admittance. As consequence mean velocity, theory, depends added sphere. and rate dissipation ...

Bridges across waterways are susceptible to failure from ship collisions. Therefore, provide a reference for bridge design and protection, reported here is study of the response pier during collision with barge. First, sphere–cylinder experiments were conducted in water flume, fluid–structure interaction (FSI) method was implemented LS-DYNA software simulate process. The numerical experimental ...

Computational fluid mechanics (CFD) has made substantial progress on modelling a variety of important problems in industry. owever, there is still lack of reliable methods to model the motion of the body in water. This is a central issue in understanding nimal and human propulsion in water not only to advance science but to explore the possibility of utilising such propulsion modes or man made ...

To evaluate the mechanisms responsible for relationships between body mass and maximum take-off performance in birds, we studied four species in the Phasianidae: northern bobwhite (Colinus virginianus), chukar (Alectoris chukar), ring-necked pheasant (Phasianus colchicus) and wild turkey (Meleagris gallopavo). These species vary in body mass from 0.2 to 5.3 kg, and they use flight almost solely...