The effect of different arsenic species (As2 or As4) on the quality of molecular beam epitaxy (MBE) grown GaNAsSb materials (samples A and B) and GaAs/ GaNAsSb/GaAs p + n n + devices (samples C and D) were investigated. The improvement in material quality in sample B, as well as the improvement in diode and solar cell characteristics in sample C, may suggest a successful defect density manipula...

A combustion synthesis methodology for the preparation of perovskite Li3xLa1/3-xTaO3 lithium-ion conductors with x = 0.033 is presented. Bulk ceramic specimens were sintered under combinations burial powder and cover crucibles to provide different lithium vapor overpressure conditions. maximum total ion conductivity 6 × 10-6 S cm-1 at room temperature was found pellet covered by a crucible whos...

Abstract The 79 CE eruption of Vesuvius is the first documented Plinian eruption, also famous for archaeological ruins Pompeii and Herculaneum. Although much known regarding dynamics magma reservoir, little about reservoir shape growth, related ground deformation. Numerical modelling by Finite Element Method was carried out, aimed at simulating growth deformation with respect to (prolate, spher...

The objective of this paper is to investigate the structural response of carbon fiber sandwich panels subjected to blast loading through an integrated experimental and numerical approach. A total of nine experiments, corresponding to three different blast intensity levels were conducted in the 28-inch square shock tube apparatus. Computational models were developed to capture the experimental d...

A bisphenol A production plant possesses considerable potential risks in the top of the methanol separation column, as pressurized acetone, methanol, and water are processed at an elevated temperature, especially in the event of an abnormal pressure increase due to a sudden power outage. This study assesses the potential risks in the methanol separation column through hazard and operability ass...

Cerebrospinal fluid (CSF) rhinorrhea is often intermittent, thus complicating the cisternographic localization of the leakage. In four patients studied, this difficulty was overcome by lumbar infusion of artificial CSF to which a bolus of radionuclide was added. The tracer was moved in bulk to the basal cisterns, and the rise in CSF pressure elicited a profuse rhinorrhea. Sequential imaging was...

This project analyzes 2-D, inviscid, steady supersonic flow over different airfoil designs at Mach 2.2 while at 60,000ft. The airfoils tested have sharp leading and trailing edges. The shapes range from diamond to convex to a combination of the two. A hybridization of Computational Fluid Dynamics (CFD) and Computational Acoustic simulations are used to obtain values for the lift coefficient, dr...