Vertical roller mills (VRMs) are well-established grinding equipment for various tasks in the coal and cement industry. There are few studies on simulation of VRMs. In this research work, application of perfect mixing model for simulation of a VRM in a cement grinding plant was investigated. Two sampling surveys were carried out on the VRM circuit. The samples and data from the first survey wer...

Purpose, History and Structure of Biological Assays, International Standards, Statistical Science, and Biological Assays. Terminology and Notations, Nature of Biological assays, Potency Ratio Precision of estimates, Direct and Indirect assays, Design of Bioassay, Failure in Normality assumptions, Regression Analysis, Dose Response Curves, Theory of Parallel Assays, Calibration Curves, Fieller’s...

OBJECTIVE Calibration errors in distortion-product otoacoustic emission (DPOAE) measurements because of standing waves cause unpredictable changes in stimulus and DPOAE response level. The purpose of this study was to assess the extent to which these errors affect DPOAE test performance. Standard calibration procedures use sound pressure level (SPL) to determine specified levels. Forward pressu...

mcmlogical use. The optical appamtuscs which compost ARSTRACT our 313 active sensor are one (or more) camera and one projector, the camera calibration has been widely malysed The 3D active vision system ilivstrated in this paper notably in stereo-vision systems [FAURT] but with regard has been developed far a geometrical study of object to acrive vision system using a projector. few works have ...

BACKGROUND The aim of the Simplified Acute Physiology Score (SAPS) II and SAPS 3 is to predict the mortality of patients admitted to intensive care units (ICUs). Previous studies have suggested that the calibration of these scores may vary across countries, centers, and/or characteristics of patients. In the present study, we aimed to assess determinants of the calibration of these scores. ME...

BACKGROUND Six multivariable models predicting 3-month outcome of acute ischemic stroke have been developed and internally validated previously. The purpose of this study was to externally validate the previous models in an independent data set. SUMMARY OF REPORT We predicted outcomes for 299 patients with ischemic stroke who received placebo in the National Institute of Neurological Disorder...

in this study, 60 composite samples of dill and onion from two different cultivated areas in khozestan province, iran, were collected and analyzed for the presence and determination of lead and cadmium by flame atomic absorption spectrometry. samples were burned according to aoac at 450 °c, and the residue was dissolved in nitric acid. lead and cadmium contents were determined using calibration...

The Yule-Nielsen modified spectral Neugebauer model enhanced for accounting for ink spreading in the different ink superposition conditions (EYNSN) requires measuring the reflectances of halftone calibration patches in order to compute the ink spreading curves mapping nominal ink surface coverages to effective ink surface coverages. Spectral measurements of dozens of halftone patch reflectance ...