This paper deals with the construction of tip asymptotes for a hydraulic fracture deflating in permeable elastic medium. Specifically, describes changing nature asymptotic fields during arrest and recession phases following propagation after fluid injection has ended. It shows that as deflates phase, region dominance linear mechanics asymptote $w\sim x^{1/2}$ aperture $w$ distance $x$ from fron...

Galvanized steel scrap flow and injection into the HIsarna reactor are investigated using discrete element method (DEM). The particle is fed through an inclined chute hits slag surface where zinc content evaporated solid particles melt. A DEM model setup validated experimental data obtained from exact plant‐scale geometry particles. Using model, effect of inclination, elevation, mode (batch con...

• A three-stage behavior of tip penetration in ammonia jets are proposed. The and methane have similar S , α fuel mole fractions at jet axis. hyperbolic decays concentrations the axis confirmed. Fuel increase with increased P inj but reduce a . Ammonia show distinct flammable mixture distributions. direct-injection gaseous is possible way to engines meet scenario zero-carbon emission. In this s...

A newly designed capillary electrophoresis (CE) microchip with a simple and efficient sample introduction interface is described. The sample introduction is carried out directly on the separation channel through a sharp inlet tip placed in the sample vial, without an injection cross, complex microchannel layouts or hardware modification. Alternate placement of the inlet tip in vials containing ...

OBJECTIVES To create an algorithm that derives our preferred reconstruction technique for cutaneous defects involving the nasal tip and to review the management and outcomes of patients with nasal tip cutaneous defects after their initial reconstruction. METHODS A retrospective review of patients undergoing repair of cutaneous defects involving the nasal tip between January 2006 and January 2...

OBJECTIVE To evaluate the feasibility of ultrasound guided atlanto-occipital joint injection. METHOD Six atlanto-occipital joints of three cadavers were examined. Cadavers were placed in prone position with their head slightly rotated towards the contra-lateral side. The atlanto-occipital joint was initially identified with a longitudinal ultrasound scan at the midline between occipital protu...

Tunneling between a photoexcited p-type silicon tip and a gold surface is studied as a function of tip bias, tip-sample distance, and light intensity. In order to extend the range of application of future spin injection experiments, the measurements are carried out under nitrogen gas at room temperature. It is found that, while tunneling of valence band electrons is described by a standard proc...

BACKGROUND AND PURPOSE The internal carotid artery (ICA) in the rat has a single extracranial branch, which supplies the muscles of mastication. The rat ICA also has multiple intracranial branches including (from proximal to distal): multiple small perforating arteries which supply the hypothalamus and the anterior choroidal artery which supplies the choroid plexus and part of the basal ganglia...