نتایج جستجو برای: warm and hot forming processes

تعداد نتایج: 16896304  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

during natural gas processing, water in natural gas may cause to hydrates formation in pipelines which may lead to serious damages to process equipments. given the problems raised by present of water in natural gas, glycol solvent uses to remove water.in contact of glycol with gas always an amount of btex and voc absorb along with water, which on glycol recovery process, these substances separa...

2002
N. M. Nagar D. J. Axon

Several popular cosmological models predict that most of the baryonic mass in the local universe is located in filamentary and sheet-like structures associated with galaxy overdensities. This gas is expected to be gravitationally heated to ∼ 10 K and therefore emitting in the soft X-rays. We have detected diffuse soft X-ray structures in a high Galactic latitude ROSAT field after point source s...

Journal: :The Astrophysical Journal 2020

Journal: :فصلنامه علمی پژوهشی مهندسی مکانیک جامدات واحد خمینی شهر 0
mehdi chogan department of mechanical engineering, khomeinishahr branch, islamic azad university, khomeinishahr, iran mohsen loh-mosavi - department of mechanical engineering, khomeinishahr branch, islamic azad university, khomeinishahr, iran

.hot metal gas forming of tubes can be used in various industries such as automotive and aerospace industries. in this process tube is formed at elevated temperatures, by using gas instead of fluid pressure. lower required pressure and low power are its advantages in comparison to hydroforming process. in this paper, a hot metal gas bulging process of an aluminum alloy tube has been investigate...

Journal: :International Journal of Damage Mechanics 2022

Forming limit curves (FLCs), which are constructed using the strains at localised necking, most widely used tools for evaluation of formability sheet metals. Fracture forming (FFLCs) more recently developed, complementary instead fracture. Since depends strongly on conditions such as strain state, temperature and rate, models predicting FLCs FFLCs essential optimisation further application hot ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه دانشهای بنیادی (مرکز تحقیقات فیزیک نظری و 1387

we show that when both sources ( lepton flavor violation sources and cp-violating phases) are present, the electric dipole moment of the electron, $d_e$, receives a contribution from the phase of the trilinear $a$-term of staus, $phi_{a_ au}$. for $phi_{a_ au}=pi/2$, the value of $d_e$, depending on the ratios of the lfv mass elements, can range between zero and three orders of magnitude a...

Journal: :IEEE Trans. Software Eng. 1994
Ing-Ray Chen Farokh B. Bastani

We classify standby redundancy design space in processcontrol programs into the following three categories: cold standby, warm standby, and hot standby. Design parameters of warm standby are identified and the reliability of a system using warm standby is evaluated and compared with that of hot standby. Our analysis indicates that the warm standby scheme is particularly suitable for long-lived ...

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