NFPA 20 (Standard for the Installation of Stationary Pumps for Fire Protection) - 2013

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NFPA 20 (Standard for the Installation of Stationary Pumps for Fire Protection) - 2013

استاندارد نصب پمپهای آتشنشانی ثابت. ملزومات لازم برای نصب پمپهای آتشنشانی را می توان در این استاندارد بدست آورد.

Reserve Estimates for Naturally Fractured Reservoirs

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مقاله SPE شماره 71037

A Type-Curve-Based Spreadsheet Program for History Matching and Forecasting Tight-Gas Production.

اختصاصی از سورنا فایل A Type-Curve-Based Spreadsheet Program for History Matching and Forecasting Tight-Gas Production. دانلود با لینک مستقیم و پر سرعت .

مقاله SPE شماره 71067

Asymptotic Analytical Solutions for Imbibition Waterfloods in Fractured Reservoirs

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مقاله SPE 71312

Photoneutron production and backscattering in high density concretes used for radiation therapy shielding

اختصاصی از سورنا فایل Photoneutron production and backscattering in high density concretes used for radiation therapy shielding دانلود با لینک مستقیم و پر سرعت .

In the current study, the effect of high density concretes on photoneutron productions in radiation therapy was studied using Monte Carlo simulations. The photon and neutron spectra of an 18 MeV photon beam of the Varian linac head were used for all simulations. Ordinary and five high density concretes made of high density elements were simulated. The studied concretes consisted of Magnetite, Datolite-Galena, Magnetite–Steel, Limonite–Steel, and Serpentine. Our results showed that photoneutron production in these concretes strongly depends on their composition. It appears that the application of high density elements with higher probability for photoneutron production, such as Fe and Pb, increases the photoneutron production in concrete walls of radiation therapy bunkers. Further studies on the effect of concrete composition on photoneutrons in radiation therapy room are recommended.