Diffusion Creep of Enstatite at High Pressures Under Hydrous Conditions

Velocity crossover between hydrous and anhydrous forsterite at high pressures

Se Ling High Pressures under Sour Conditions

Sealing high pressure gases with elastomers is a problem as elastomers are essentially a supercondensed gas. The primary interactions (type of gas, heat, pressure) and secondary interactions (water, inhibitors, etc.) that lead to seal failures are reviewed and discussed. The high pressure raises the gas density, and this causes the gases to have extraordinary solvent power (2,3,4,5). The totall...

Problems of Structural Optimization Under Creep Conditions

Optimal structural design under creep conditions, initiated over 20 years ago, brings a fairly larg~ variety of problems, interesting both from theoretical and engineering point of view. Existence of the time factor leads to optimization for a prescribed lifetime and the number of independent variables in governing equations increases by one. Practical importance is connected with design of met...

degradation of oil impregnated paper insulation under influence of repetitive fast high voltage impulses

در طی سالهای اخیراستفاده ازمنابع انرژی تجدید پذیر در شبکه های مدرن بنا به دلایل زیست محیطی و اقتصادی به طور گسترده استفاده شده است همچون نیروگاههای بادی و خورشیدی .ولتاژتولیدی این نیروگاهها اغلب به فرم dc می باشد وادوات الکترونیک قدرت به عنوان مبدل و پل بین شکل موج dc وac استفاده می شوند.این پروسه باعث ایجاد پالسهایی برروی شکل موج خروجی می شود که می تواند وارد تجهیزات قدرت همچون ترانسفورماتور ی...

Adsorption at High Pressures