we report engineering experiences from the critical task of relief well installation under high artesian flow conditions at the downstream toe of the karkheh earth dam, iran. due to the establishment of excessive uplift pressure at the downstream toe of the karkheh dam, installation of a series of new relief wells was considered to permanently relieve part of these pressures. the mentioned upli...

In order to solve the problems of low gas drainage rate and long time in thick coal seam with permeability, ultra-high pressure hydraulic slotting relief permeability enhancement technology was applied test. The practice shows that after adopting slotting, is greatly improved, for reaching standard shortened, difficult problem control mining face solved, which provides technical guidance high-e...

diffusivity equation commonly used for pressure distribution prediction in porous media results from substituting equation of state and continuity equation in navier-stokes momentum equation. from mathematical point of view this equation format shows infinite propagation speed for pressure pulse through porous media, which is physically impossible. this issue may caused by numerous assumptions ...

results under the above chromatography condition, biuret compound (peqb) and the internal standard were detected at 4.5 and 13.5 minutes, respectively. limit of quantitation of the peqb was 0.1 µg/ml. accuracy of the method over the concentration range of 0.1-100 µg/ml was between 88-109%. inter- and intraday precisions were 4-19% and 6-8%, respectively. a good relationship in the form of a pow...

background: this study was aimed to investigate the association of consuming white rice and potato, as well as the bread type with anthropometric measures and blood pressure (bp) in a national sample of iranian children and adolescents. methods: this nationwide study was conducted in 2011-2012 among 14,880 students, aged 6-18 years, selected by multistage cluster sampling from 30 provinces of i...

conclusions examination of the fasting lipid profile has clinical importance in predicting the efficacy of peg-ifn-α-2b plus rbv combination therapy for patients with hcv g1b even after the discovery of the il28 genotype as a potent predictive factor. objectives to re-examine the significance of lipoprotein profiles on virological response to peg-ifn plus rbv combination therapy in patients wit...

the quality of pressure distribution over the atmosphere of the sea level and geopotential altitude at different atmosphere layers affect on many climate and meteorology phenomena of the earth surface. one of the important meteorology phenomenon is the occurrence of frost phenomenon especially late spring frost. in this surrey, occurring late spring frost days and minimum temperature during the...