Field experiment was conducted to investigate the comparison between two types of ridge (panel and disc) using spaces operational parts (90 110 cm) at speeds (4 2.6 km/hr). First stage from this study identify important dimensions local manufactured (ridge panel) with selecting appropriate material throughout series material, mechanical chemical analyses. Second evaluate performance particular ...

There is a direct relationship between the efficiency of mechanized excavation in hard rocks and that of disc cutters. Disc cutter wear is an important effective factor involved in the functionality of tunnel boring machines. Replacement of disc cutters is a time-consuming and costly activity that can significantly reduce the TBM utilization and advance rate, and has a major effect on the total...

Careful modelling of the stellar and gaseous distributions in the Milky Way disc has been carried out in order to study the stellar warp. We have analysed the observations in the near infrared made by the ”Diffuse Infrared Background Experiment” (DIRBE) on board COBE as reported by Freudenreich et al. (1994). These authors found a dependence of the displacement of the maximum emission on galact...

OBJECTIVE To determine the efficacies of antibacterial and antioxidant activities of aqueous leaf extract of Psidium guajava mediated biosynthesis of titanium dioxide nanoparticles (TiO2 NPs). METHODS Synthesized TiO2 NPs were tested by disc diffusion method against against human pathogenic bacteria. The total antioxidant activity and phenolic content (Folin-Ciocalteau method) of synthesized ...

This study was undertaken to examine the influence of temperature on physical properties of red cell membranes. Red cells adhering to cover slips were subjected to fluid shear stress in a rotating disc apparatus for 1 min or for 10 min at temperatures ranging from 2 degrees to 50 degress C. They were fixed while subject to shear stress by addition of glutaraldehyde and then processed for examin...

Introduction: This study is aimed to compare phenotypic test methods and determine antibiotic susceptibility pattern of AmpC beta-lactamase producing uropathogenic Escherichia coli and Klebsiella pneumoniae in clinical isolates. Method: E. coli and K. pneumoniae were identified by standard microbiological procedures. Screening of AmpC beta-lactamase production was done by using cefoxitin disc (...

We present the results of a theoretical study investigating the effects of photoionization and heating by X-rays on discs around low-mass stars. In particular we address the question of whether or not X-rays can drive a disc wind. First, we construct a 1-dimensional “quasi-hydrostatic” model, which solves for the vertical structure introduced by X-ray heating. We consider uniform X-ray illumina...

  Purpose: To investigate the relationship between neck circumferences and cardiovascular risk   factors in patients with acute coronary syndrome.   Materials and Methods: In a cross-sectional study, 100 patients with acute coronary syndrome   in Kerman hospitals were assessed by measuring their neck circumference and risk factors of   cardiovascular disease. The data were analyzed by student t...

AIMS To compare stereophotographic and monophotographic optic disc assessments made using a digital optic disc stereo camera. METHODS Stereo digital optic disc photographs of 150 selected patients who had presented to a glaucoma clinic were assessed by two masked observers on separate occasions using (1) the stereophotographs and a stereoviewer, (2) a single image from the same stereopair. Re...