Predicting pump performance and ensuring operational reliability under two-phase conditions is a major goal of three-dimensional (3D) computational fluid dynamics (CFD) analysis liquid/gas radial centrifugal flows. Hence, 3D CFD methods are increasingly applied to such flows in academia industry. The demands careful selection sub-models from several fields CFD, as turbulence modeling, well high...

Base-pockets (non-complementary base-pairs) in a double-stranded DNA play a crucial role in biological processes. Because of thermal fluctuations, it can lower the stability of DNA, whereas, in case of DNA aptamer, small molecules, e.g., adenosinemonophosphate and adenosinetriphosphate, form additional hydrogen bonds with base-pockets termed as "binding-pockets," which enhance the stability. Us...

Abstract Gas, which is trapped in either solid or liquid pockets, results foam formation. Foam formation common many industries, i.e., detergents, food and beverage, cosmetics, fire-fighting. excess causes biotechnology fermentation instabilities, including material loss the danger of contaminating environment. Many foam-controlling measures have been reported, thermal, enzymatic, mechanical, u...

We developed a new computational algorithm for the accurate identification of ligand binding envelopes rather than surface binding sites. We performed a large scale classification of the identified envelopes according to their shape and physicochemical properties. The predicting algorithm, called PocketFinder, uses a transformation of the Lennard-Jones potential calculated from a three-dimensio...

This research was carried out to follow-up the microbial growth-down rates of the inflammatory periodontal pockets using radiotherapy, Taif Region, KSA. The patients (Pts.) under study were (No.=25pts.),they had chronic pockets periodontitis, they were divided into 20Pts. as study group (SG) and 5Pts. as control group (CG). SG had received radiotherapy (RT) and CG had received irrigation with n...

Pneumatosis intestinalis is a radiographic finding of gas pockets within the bowel wall. It can be associated with a range of diagnoses, but the most life-threatening causes are mesenteric ischemia, bowel necrosis, and bowel obstruction. Here we present the case of a patient with multiple myeloma who had pneumatosis intestinalis due to gastrointestinal amyloidosis, which is a rare manifestation...

Modern computational approaches based on quantum mechanical methods to characterize structures and optical spectra of biological chromophores in the gas phase, in solutions and proteins are discussed. Primary attention is paid to the chromophores from the family of the green fluorescent protein (GFP) widely used as a biomarker in living cells. Beyond GFP, photophysical properties of the monomer...

We report on a new method to characterize nanohydrodynamic properties at the liquid-solid interface relying solely on the measurement of the thermal motion of confined colloids. This equilibrium measurement of surface properties--equivalent in spirit to the passive microrheology technique used for bulk properties--is able to achieve nanometric resolution on the slip length measurement. Explorin...

Bubble nucleation in weakly supersaturated solutions of carbon dioxide—such as champagne, sparkling wines and carbonated beers—is well understood. Bubbles grow and detach from nucleation sites: gas pockets trapped within hollow cellulose fibres. This mechanism appears not to be active in stout beers that are supersaturated solutions of nitrogen and carbon dioxide. In their canned forms these be...

A strategy of suppressing the fast degradation behaviour of Mg-based biomaterials by the introduction of one of Mg degradation products Mg(OH)2 was proposed according to the following degradation mechanism, Mg + 2H2O ⇋ Mg(OH)2 + H2↑. Specifically, Mg(OH)2 submicron particles were mixed into poly (L-lactic acid) (PLLA) to synthesize a composite coating onto hydrofluoric acid-pretreated Mg-Nd-Zn-...