Pipeline transportation is the main method for long-distance gas transportation; however, ponding in pipeline can affect efficiency and even cause corrosion to some cases. A non-destructive detect using percussion acoustic signals a convolution neural network (CNN) proposed this paper. During process of detection, constant energy spring impact hammer used apply an on pipeline, percussive are co...

background: daily administration of thyroxine has proven efficacy in treatment of children with hypothyroidism. however, the possibility of treatment with longer dosing intervals that offers flexibility and choice in maintaining euthyroid state has not been tested in children. objectives: to study the efficacy of an alternate day regimen to maintain euthyroidism in children with congenital hypo...

Considering the vulnerability of double-layer grid space structures to progressive collapse phenomenon, it is necessary to pay special attention to this phenomenon in the design process. Alternate path method is one of the most appropriate and accepted methods for progressive collapse resistant design of structures. Alternate Path Method permits local failure to occur but provides alternate pat...

air conditioning refrigerant r134a has value of global warming potential (gwp) 1300, which is much higher than mac directive (gwp below 150) passed in july 2006. this prompted a search for alternative refrigerant with gwp value less than 150. r1234yf is a new refrigerant which has lower gwp value of 4. effect of blower speed has been compared and flammability issue of r1234yf has been addressed...

introduction: fasting, like islamic ramadan fasting, has been associated with health benefits. islamic ramadan fasting, a form of caloric restriction (cr) or alternate day fasting that. studies suggest a comparable effect of adf and caloric restriction. despite the fact that fasting can be considered as a form of dietary restriction, fasters tend to have difficulty to reduce their food intake d...

The organocobalamin with methylitaconic acid attached to cobalt via its methyl group has been synthesized for the first time. This compound is believed to be an intermediate in the interconver­ sion of methylitaconic acid and a-methyleneglutaric acid, catalysed by the coenzyme B 12-dependent a-m ethyleneglutarate mutase enzyme. Reactions of this organocobalamin and the corres­ ponding dimethyl ...

[1] Mars Orbiter Laser Altimeter (MOLA) topographic data support the presence of an extensive Hesperian-aged volatile-rich south polar deposit, the Dorsa Argentea Formation (DAF) and related deposits, underlying the present Amazonian-aged cap. The eastern margin of these deposits displays further evidence for meltback, ponding, and drainage of the volatile-rich deposit. Channels leading from th...

this research was conducted at the shahrood agricultural research center in 1382 and 1383 to study the effect of alternate furrow irrigation on potato yield and its economic evaluation. the experimental design was a randomize complete block design and the treatments were: every furrow irrigation (efi), fixed alternate furrow irrigation (fafi), variable alternate furrow irrigation (vafi), fixed ...

‎we present an application of the dual gabor frames to image‎ ‎processing‎. ‎our algorithm is based on finding some dual gabor‎ ‎frame generators which reconstructs accurately the elements of the‎ ‎underlying hilbert space‎. ‎the advantages of these duals‎ ‎constructed by a polynomial of gabor frame generators are compared‎ ‎with their canonical dual‎.