Abstract: In this paper, we consider the unsteady hydromagnetic incompressible viscous fluid flow through a porous medium in a horizontal channel under prescribed discharge, under the influence of inclined magnetic field. The undisturbed flow is due to a constant pressure gradient and the unsteadiness in the flow is created by imposing a time – dependent flux condition. The solutions for the ve...

A modified fully-digital PN code tracking loop is proposed for direct-sequence spread-spectrum communication. By taking advantage of the inherent diversity, a modified code tracking loop is embedded into a RAKE receiver to avoid problems caused by unstable locked points of error signals. Such unsteadiness of locked points often occurs with a conventional code tracking loop because the error sig...

In this paper, the problem of unsteady stagnationpoint flow and heat transfer induced by a shrinking sheet in the presence of radiation effect is studied. The transformed boundary layer equations are solved numerically by the shooting method. The influence of radiation, unsteadiness and shrinking parameters, and the Prandtl number on the reduced skin friction coefficient and the heat transfer c...

Section 1 A 49-year-old man with a medical history significant for diabetes mellitus, a left thigh sarcoma that was resected 5 years prior, and a seizure disorder on valproic acid presentedwith 2months of progressive numbness and weakness. Symptoms began with painful paresthesias in both thumbs that progressed to numbness. His feet subsequently became numb, and within 3 weeks he noted gait unst...

A tidal bore is a natural and fragile phenomenon, which is of great importance for the ecology of an estuary. The bore development is closely linked with the tidal range and the river mouth shape, and its existence is sensitive to any small change in boundary conditions. Despite their ecological and cultural value, little is known on the flow field, turbulent mixing and sediment motion beneath ...

A 2-year-old girl presented with history of fall from a 2 feet high bed, 20 days back. There was no alteration of consciousness immediately but four hours later parents noticed unsteadiness of gait and shaking of head and neck. These progressed and she became bedridden due to ataxia 7 days later. There was no pain or restriction of neck movement. There was no preceding viral illness, vaccinatio...

A compressible, multiphase, one-fluid RANS solver has been developed to study turbulent cavitating flows. The interplay between turbulence and cavitation regarding the unsteadiness and structure of the flow is complex and not well understood. This constitutes a critical point to accurately simulate the dynamic behaviour of sheet cavities. In the present study, different formulations based on a ...

BACKGROUND Acute symmetric deep cerebellar lesions suggest toxic exposure. OBJECTIVE To describe a patient with striking neurologic and magnetic resonance image features. DESIGN Case report. SETTING Emergency department and office. METHODS Personal observation. RESULTS A middle-aged man had a day of unsteadiness, followed by acute and pronounced cerebellar signs. The degree of disabil...

The effect of variable chemical reaction on heat and mass transfer characteristics over unsteady stretching surface embedded in a porus medium is studied. The governing time dependent boundary layer equations are transformed into ordinary differential equations containing chemical reaction parameter, unsteadiness parameter, Prandtl number and Schmidt number. These equations have been transforme...