Batch reverse osmosis (BRO) systems may enable a significant reduction in energy consumption for desalination and water reuse. BRO systems operate with variable pressure, by applying only slightly more pressure than is needed to overcome the osmotic pressure and produce reverse water flux. This study explains, quantifies, and optimizes the energy-saving performance of realistic batch designs im...

We have shown that obese Zucker rats with orthopedic trauma (OZT) exhibit a loss of arteriolar tone in skeletal muscle. We hypothesize that the loss of arteriolar tone in OZT blunts vasoconstrictor responses to hemorrhage, resulting in an impaired blood pressure recovery. Orthopedic trauma was induced with soft tissue injury and local injection of bone components in both hindlimbs in lean (LZT)...

Fine particles misclassification in the underflow (UF) of grinding-classification hydrocyclones might result ore over-grinding, leading to both reduced ball mill throughput and metal recovery. In current research, a W-shaped hydrocyclone is proposed, efficiently decrease fine UF. The effects following parameters (including cross-effects) on classification performance were studied experimentally...

Abstract: In this paper, an exergy analysis approach is proposed for optimal design of distillation column by using simulated annealing algorithm. First, the simulation of a distillation column was performed by using the shortcut results and irreversibility in each tray was obtained. The area beneath the exergy loss profile was used as Irreversibility Index in the whole column. Then, First Opti...

purpose the aim of this study was to examine the influence of selected exercises on motor development in elementary school third grade girl students in ahwaz city, iran. methods the present study was semi–experimental, performed as field and using experimental and control groups. the statistical population included all third grade girl students of elementary schools of ahvaz city (10,500 subjec...

background: genes for human epidermal growth factor receptors b1 (erbb1) and b2 (erbb2) were amplified in breast and ovarian cancers. both of them were associated with aggressive disease and worse prognosis. the erbb1 or erbb2 status of a tumor may provide an indication of the response to erbb1 and erbb2 -targeted therapies. for accurate and rapid assessment of amplification of erbb1 and erbb2 ...

small and medium enterprises development policy by  cluster approach  program is a new method to attempt to industrial development goals in developed and developing country in the world. in the last decades in some of country such as iran concentrate that programmed. industrial development program by cluster approach need some measurable factor for control and assessment. program’s control must...

purpose physical inactivity is more prevalent among women than men, varies by ethnic group, and becomes increasingly prevalent with age. the aim of this study was to examine the effects of a 12-week exercise program on the cardiovascular disease risk and fitness of iranian middle aged women. methods this was a randomized controlled trial study. participants in the training group (n=20) performe...