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Articles by A. Valizadeh
Total Records ( 2 ) for A. Valizadeh
  M. Siahkohian , H. Farhadi , A. Naghizadeh Baghi and A. Valizadeh
  The purpose of this study was to determine the effect of 5% carbohydrate ingestion on the sprint performance immediately following 90 min of running at 70-80% of maximal heart rate reserve. Thirty young active men were selected as subjects and allocated randomly to two carbohydrate (CHO, N = 15) and placebo (PL, N = 15) groups. Pre-test 200 m dash, 90 min running and post-test 200 m dash took place, respectively. Exercise heart rate monitored during 90 min running by a cardio frequency meter. Significant differences were found between the CHO and PL post-test 200 m dash records (p<0.05). Blood glucose was found to be significantly higher at the end of the 90 min running for the CHO group than for the PL group (p<0.01). The results suggest that carbohydrate ingestion during endurance exercise inhibits failing of Sprint performance of young active men.
  A. Valizadeh , M. Shafieefar , J.J. Monaghan and S.A.A. Salehi Neyshaboori
  The basic equations governing the free surface flow of a fluid are considered and approximated by using a semi-compressible Smoothed Particle Hydrodynamics (SPH) method which is a grid-less Lagrangian approach. It is found that the standard SPH method, which has been successfully applied to simulate the transient free surface flows, could be used for simulation of multiphase flows with high density ratios, by doing a correction on mass of interface particles. The SPH modeling is shown to provide a promising tool to predict the two liquid characteristics of free surface flows. To show the validity of the present method numerical examples on bubble rising in a heavier fluid and luck-exchange flow are considered and a good agreement is observed.
 
 
 
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