This study explores the influence of particle size and carrier gas on clean efficient combustion pulverized 'Barapukuria' bituminous coal. Both experimental numerical analyses were conducted to examine temperature fluid flow in a 1400 mm long vertical furnace with 344 x mm² interior crosssection. High-Temperature Air Combustion (HTAC) was employed minimize NOx emissions. The research focused vo...

A numerical study on Nox emission from an industrial furnace utilizing high temperature air combustion (HTAC) technology was done. The basic concept of the regenerative burner including heating a diluting of fresh air by flue gas was implemented in a two-dimensional furnace model. Governing equations in conjunction with a turbulence model and an overall chemistry model were solved using an impl...

the paper presents results of experimental studies on the methane and propane ignition process in various volumetric compositions of oxidizers heated to temperatures higher than ignition point of analyzed fuels (htac conditions–high temperature air combustion conditions). the increment of temperature dt and the ignition delay time tig are parameters characterizing the process of ignition under ...

This report provides general information about osteoporosis and describes the use of bone densitometry as a tool to screen for, diagnose and manage osteoporosis in white postmenopausal women. Discussion is limited to white women because of lack of research on osteoporosis in men, and in women of different racial and ethnic groups. The report does not evaluate the safety and efficacy of all bone...

Strategies to use heme as a source of iron are key to the survival and virulence of many bacteria; inhibition of iron uptake pathways may be a new strategy to prevent bacterial infection. Corynebacterium diphtheriae is a Gram-positive, pathogenic bacterium that is the causative agent of diphtheria It utilizes proteins in heme uptake pathways to obtain required iron for survival and virulence. O...

abstract aims: even low concentrations of phenol in industrial waste can cause many difficulties for the aquatic environment. so removal of this organic matter is an important issue. the adsorption process, is one of the most effective methods for isolation and purification of phenols. the aim of this study was to introduce wood haloxylon as a natural and new absorbent to remove phenol from aqu...