In this study, the performance of a centrifugal pump is investigated by adding polyacrylamide (PAM) polymer over the working fluid which is tap water in this case. PAM is a long chain polymer that leads to reduce the wall shear stress and drag in a turbulent fluid. Three different blade profiles including radial, straight backward and circular backward have been examined. For this purpose, a ce...

The paper provides a framework for representing belief-contravening hypotheses in games of perfect information. The resulting t-extended information structures are used to encode the notion that a player has the disposition to behave rationally at a node. We show that there are models where the condition of all players possessing this disposition at all nodes (under their control) is both a nec...

The paper provides a framework for representing belief-contravening hypotheses in games of perfect information. The resulting t-extended information structures are used to encode the notion that a player has the disposition to behave rationally at a node. We show that there are models where the condition of all players possessing this disposition at all nodes (under their control) is both a nec...

CREST is a new architectural style for highly dynamic distributed applications. CREST (Computational REST) is a generalization of the REST architectural style that shaped the scaleable WWW. In CREST, URLs denote loci of computations and the representations exchanged are expressions that may be as simple as a string literal or as rich as full continuations or closures. CREST eliminates the clien...

In this study, the Input- Output Structural Decomposition Analysis (I-O SDA) is used to investigate the effects of technological structure changes on changes of total output in Sistan and Baluchestan Province during 2006-2011. The technological structure change is decomposed into two factors: intermediate input structure changes (input substitution) and change in direct backward linkage. The re...

CREST is a new architectural style for highly dynamic distributed applications. CREST (Computational REST) is a generalization of the REST architectural style that shaped the scaleable WWW. In CREST, URLs denote loci of computations and the representations exchanged are expressions that may be as simple as a string literal or as rich as full continuations or closures. CREST eliminates the clien...

The phenomenon in associative learning called ‘blocking’ has been a central target for theories that aim to explain learning and attention. The training phases of the blocking procedure, described in detail below, can be run in backward order, yet still produce the blocking effect (e.g., Shanks,1985; Dickinson and Burke,1996; Kruschke and Blair, 2000). Explaining forward and backward blocking, ...

Background Motor intervention plays an important role in reducing the disabilities of Down syndrome (DS). A lack of balance and postural control has created motor problems in DS patients. Therefore, the aim of this study was to examine the effect of backward walking on postural stability of DS patients. Materials and Methods Sixteen DS children with 8-10 age range were selected by convenience s...

In the current research with novel first and second differentiations of a yield function, Euler forward along with Euler backward with its consistent elastic-plastic modulus are newly implemented in finite element program in rate-independent plasticity. An elastic-plastic internally pressurized thick walled cylinder is analyzed with four famous criteria including both pressure dependent and ind...

Previous research has revealed that dyslexic children may be more sensitive to backward-masking effects in auditory perception than control children. In this study, we asked whether a CV transition masks a preceding VC transition to a greater extent in dyslexic children than in controls. The results suggest that dyslexic children are severely impaired on the discrimination of VC sequences, rega...