The tracer gas method is one of the common ways to evaluate air exchange rate in a naturally ventilated barn. One crucial condition for accuracy that both considered gases (pollutant and tracer) are perfectly mixed at points where measurements done. In present study, by means computational fluids dynamics (CFD), mixing ratio NH3/CO2 evaluated inside barn order assess under which flow conditions...

Using a probabilistic interpretation of an n dimensional extension of Papoulis's Generalized Sampling Theorem, an iterative algorithm has been devised for 3D reconstruction of a Lambertian surface at subpixel accuracy. The problem has been formulated as an optimization one in a Bayesian framework. The latter allows for introducing a priori information on the solution, using Markov Random Fields...

A stand generation (or initialization) procedure is designed to furnish morphologically plausible model trees for process-based projection. The steps of the initialization are: (i) the generation of the locations of model trees and the tessellation of tree areas; (ii) the sampling of diameters from a target distribution and assignments of those diameters to model-tree locations; (iii) the calcu...

A computer program written mainly in a high level language (ALGOL), but with the sampling routine and certain calculations written in assembly language (SIR), has been developed to assess neuromuscular blockade in anaesthetized man by means of an Elliott 903 digital computer. The program allows the on-line real-time analysis of a range of variables including twitch height, maximum slope of twit...

BACKGROUND Information on the health and growth status of the population is essential for planning and administering health promotion programs. METHODS This is a cross-sectional study of the anthropometric measurements of United Arab Emirates (UAE) children aged 0-18 years, by a multistage stratified random sampling technique based on age and sex. Healthy, full-term children of UAE nationalit...

Regulatory agencies approve automatic samplers containing peristaltic pumps as a sample collection method for stormwater characterization and for treatment-device evaluation. Autosampler performance, as discussed in the limited available literature, can vary across the entire particle size range typically found in stormwater from different source areas and outfalls-reasonably consistent perform...

The aim of this study was to examine the effects of salinity on the survival and growth of a freshwater mussel Unio crassus, from a Mediterranean stream (Sarıçay Stream) in south-west Anatolia, Turkey, which has highly variable environmental conditions and a salinity gradient. A total of 250 similarly-sized U. crassus were collected from a stream in the species’ native range and transferred in ...

The concept of ranked set sampling was first introduced by McIntyre (1952) as a process of improving the precision of the sample mean as an estimator of the population mean. This is applicable whenever ranking of a set of sampling units can be done easily by a judgement method see, Chen et al. (2004). Ranking by judgement method is not recommendable if the judgement method is not mathematically...