Domain decomposition and mortar mixed approach for nonlinear elliptic equations modeling flow in porous media.

The equations describe the behavior of steady state flow in porous medium generally results in elliptic partial differential equations with coefficient represents the permeability of the medium. This article presents the extension of mortar mixed method for second order nonlinear elliptic equations that describes flow in porous media. The domain is decomposed into non-overlapping regions with each partitioned independently.

The Assessment of Patient-Reported Outcomes in the Medical Management of Patients With Benign Prostatic Hyperplasia.

Background Benign prostatic hyperplasia (BPH) is a prevalent condition that a large portion of the male population develops with aging, in which the prostate gland enlarges and results in urinary symptoms. Objective The objective of this article is to assess patient-reported outcomes (PRO) of medical management of benign prostate hyperplasia in terms of international prostate symptoms score (IPSS), BPH impact index (BPHII), and treatment satisfaction score (TSS). Methods This descriptive study included 114 patients who received medical management for BPH during the period 5 May 2021 till 30 December 2023, at the Department of Urology, Institute of Kidney Disease Peshawar.

Efficacy of Endopyelotomy for Secondary Pelvi-Ureteric Junction (PUJ) Obstruction in Terms of Improvement in Renal Function.

Objective The objective of this study is to measure renal function improvement after endopyelotomy for secondary pelvi-ureteric junction (PUJ) obstruction using technetium-99m diethylene-triamine-pentaacetate (DTPA) renal scintigraphy. Material and methods This descriptive study was carried out at the Department of Urology, Institute of Kidney Diseases, Peshawar, Pakistan from June 1, 2021, to May 31, 2023. The study included 118 secondary PUJ blockage patients who underwent endopyelotomy.

Ceramic-reinforced HEA matrix composites exhibiting an excellent combination of mechanical properties.

CoCrFeNi is a well-studied face centered cubic (fcc) high entropy alloy (HEA) that exhibits excellent ductility but only limited strength. The present study focusses on improving the strength-ductility balance of this HEA by addition of varying amounts of SiC using an arc melting route. Chromium present in the base HEA is found to result in decomposition of SiC during melting.

Microstructural evolution and mechanical characterization of a WC-reinforced CoCrFeNi HEA matrix composite.

High entropy alloys (HEAs) are a relatively new class of material that have shown the potential to exhibit excellent combinations of mechanical properties. Various microstructural modifications have been explored to further enhance their mechanical properties for use in demanding structural applications. The main focus of the present work is an investigation of the effect of adding varying amounts of hard ceramic material (WC) to a tough HEA matrix (CoCrFeNi) by arc melting under an argon atmosphere, including microstructural changes, and evaluation of the WC additions on mechanical properties.