effect of scale on the hydrodynamics of gas-solid fluidized beds was investigated in two fluidized beds of 152 mm and 78 mm in diameter.  air at room temperature was used as the fluidizing gas in the bed of sand particles. the radioactive particle tracking (rpt) technique was employed to obtain the instantaneous positions of the particles at every 20 ms of the experiments. these data were used ...

in recent years, some statisticians have studied the signal detection problem by using the random field theory. in this paper we have considered point estimation of the gaussian scale space random field parameters in the bayesian approach. since the posterior distribution for the parameters of interest dose not have a closed form, we introduce the markov chain monte carlo (mcmc) algorithm to ap...

accumulation of unmanaged industrial solid waste, especially in developing countries has resulted in an increased environmental concern. in view of utilization of industrial solid waste the recycled paper mill waste (rpmw) – cement composite bricks were designed and developed. in order to investigate the environmental performance of sustainable construction materials two small scale model house...

rapid thermal processing (rtp) has become a key technology for semiconductor device manufacturing in a variety of applications, such as thermal oxidation, annealing, and thin-film growth. hence, understanding the radiative properties of silicon and other relevant materials is essential for the analysis of the thermal transport processes. we have analyzed and calculated the spectral, directional...

objectives the purpose of this study was to evaluate the effects of normobaric hyperoxia on clinical neurological outcomes of patients with severe traumatic brain injuries. we used the glasgow outcome scale (gos), barthel index, and modified rankin scale (mrs) to measure the outcomes of patients with tbi. patients and methods sixty-eight consecutive patients with severe tbi (mean glasgow coma s...

traffic fatalities are a major cause of morbidity and mortality in iran. occupational sleep medicine field needs more cost-effective and applicable tests for screening purposes. this study reports on a pilot screening study for drowsy drivers in an urban iranian sample of commercial drivers. the maintenance of wakefulness test (mwt) measures the ability to remain awake objectively. sleep latenc...

objective: the sheehan disability scale (sds) assesses disability in four domains of home management, work responsibilities, close relationships and social life. the main objective of this study was to develop the persian version of the sds. method: two steps of field work followed the persian translation and cultural adaptation of the tool: first, the internal consistency and convergent validi...

background and aim: disequilibrium is a common complaint in the elderly. the activities-specific balance confidence (abc) scale is a suitable tool for assessing the level of confidence in balance whilst performing daily activities. the purpose of the study was translation, cultural adaptation and evaluation of the reliability and validity of the activities-specific balance confidence scale for ...

objective: the purpose of this study was to determine the validity and reliability of the persian version of templer death anxiety scale-extended (das-e) in veterans of iran–iraq warfare. methods: in this cross-sectional study, 211 male veterans of iran–iraq warfare completed the 51 item dase. principal components analysis with varimax rotation was used to assess domain structure of the das-e. ...

objective: attention-deficit/hyperactivity disorder (adhd) is a common mental disorder in adults that was under-diagnosed until recently. due to probable consequences of adhd such as occupational and educational dysfunctions and substance use, this disorder is becoming more and more of a concern. this study aimed to investigate adhd symptoms among students of zahedan university of medical scien...