Transverse plane

About: Transverse plane is a research topic. Over the lifetime, 17069 publications have been published within this topic receiving 194059 citations. The topic is also known as: axial plane.

Conservation laws and transverse motion of energy on reflection and transmission of electromagnetic waves

Abstract: The conservation laws for the process of reflection and transmission of electromagnetic waves on a plane interface of isotropic transparent media are determined Using these laws, relations have been established between the transverse shift (TS) of a centre of gravity of reflected and transmitted wavepackets, the change of the normal component of the intrinsic Minkowski angular momentum of the electromagnetic field and the Abraham transverse momentum (or the transverse electromagnetic power flow (TPF)) The previous investigations of the TS and TPF phenomena are discussed from the point of view of conservation laws

Transverse electrodes for improved DNA hybridization in microchannels

Abstract: The present study examines the modality, in which localized transverse electric fields can be successfully employed, to augment the rate of DNA hybridization at the capturing probes that are located further downstream relative to the inlet section of a rectangular microchannel. This is in accordance with an enhanced strength of convective transport that can be achieved, on account of increments in the wall zeta potential at the transverse electrode locations. In the present model, the overall convective transport, which is an implicit function of the magnitude and the location of the transverse electrical field being employed, is essentially coupled with the surface kinetics of the bare silica wall and also the kinetics that are involved in the dual mechanisms of DNA hybridization. Parameters that govern the overall transport phenomena, such as the pH of the inlet buffer, the length of the transverse electrodes, and the voltages at which these electrodes are maintained are critically examined, in an effort to obtain an optimized wall pH distribution, which in turn can ensure favorable DNA hybridization rates at the capturing probe locations. Practical constraints associated with the upper limits of the strength of the transverse electrical fields that can be employed are also critically analyzed, so as to ensure that an optimized rate of DNA hybridization can be achieved from the bio-microfluidic arrangement, without incurring any adverse effects associated with the overheating of the DNA molecules leading to their thermal denaturation.

Transverse gradient field coils for nuclear magnetic resonance imaging

Abstract: In the production of nuclear magnetic resonance images, it is necessary to provide various magnetic fields with specified orientations and configurations in particular relationships with respect to a cylindrical coil form on which the RF and gradient coils are generally disposed. In particular, it is necessary to produce so-called transverse gradient fields which are oriented transversely with respect to the cylindrical form. It is necessary to produce a component parallel to the axis of the cylinder, but which component varies linearly in intensity in the direction transverse to the axis. That is to say, it is desirable to produce a magnetic field component within the cylinder such that surfaces on which this component is constant are parallel and are generally oriented parallel to the axis of the cylinder. Furthermore, for the purpose of providing proper spatial definition and resolution, it is necessary that this transverse field exhibit a highly linear variation in intensity inside the cylinder. In a nuclear magnetic resonance imaging system, two such coil sets are required and are oriented at right angles to one another so as to generate x-axis and y-axis positioning information. The present invention describes coil winding patterns which are capable of producing such transverse gradient magnetic fields with an exceedingly high degree of linearity.

Three-Dimensional Wall Jet Originating from a Circular Orifice,

Abstract: An incompressible three-dimensional turbulent wall jet originating from a circular orifice located adjacent to a plane wall is studied both theoretically and experimentally. An approximate similarity analysis predicts that the two transverse length scales, l 0 and L0, and the inverse of the mean velocity scale grow linearly with distance downstream x from the orifice. Experimental measurements of mean velocity and longitudinal turbulence intensity profiles were made both in air and water with hot-wire and hot-film anemometers respectively. The behaviour predicted by the similarity analysis was verified. It was found that the rate of growth of the length scale normal to the plane wall, dl 0/dx, was somewhat less than that found for a two-dimensional wall jet, whereas the rate of growth of the length scale in the lateral direction, dL0/dx, was about seven times greater than dl 0/dx.