نتایج جستجو برای: warm and hot forming processes

تعداد نتایج: 16896304  

Journal: :Communications physics 2021

Abstract An ion embedded in warm/hot dense plasmas will greatly alter its microscopic structure and dynamics, as well the macroscopic radiation transport properties of plasmas, due to complicated many-body interactions with surrounding particles. Accurate theoretically modeling such kind quantum is essential but very challenging. In this work, we propose an atomic-state-dependent screening mode...

Copper slag (CS) is an abrasive blasting grit made of granulated slag from metal smelting processes. As copper slags are known to be waste material and cause a lot of environmental problems, it would be a good idea to use them in different sections of industry such as pavement construction. On the other hand, in order to save energy and reduce the amount of pollutants re...

Journal: :Astronomy & Astrophysics 2002

Journal: :Proceedings of the International Astronomical Union 2004

Journal: :journal of food biosciences and technology 0
m. mizani associate professor of the department of food science and technology, science and research branch, islamic azad university, tehran, iran. m. yousefi instructor of the department of food science and technology, science and research branch, islamic azad university, tehran, iran. s. rasouli associate professor of the departement of nanomaterials and nanocoatings, institute for color science and technology (icst), tehran, iran. a. sharifan assistant professor of the department of food science and technology, science and research branch, islamic azad university, tehran, iran. m. bamani moghaddam associate professor of the department of statistics, faculty of mathematical sciences and computer, allameh tabatabai university, tehran, iran.

abstract: mustard is a natural multi-functional additive with strong hot flavor. in this research, powdered yellow mustard (sinapis alba) was heated by 21 different thermal processes, statistically designed by response surface methodology to evaluate the effects of combinations of heating media (hot air, hot water and steam) and heating time (0-20 min) on residual myrosinase activity, the minim...

2008
R. A. Malaney G. D. Starkman L. Widrow

We investigate a new hybrid-model universe containing two types of dark matter, one " warm " and the other " hot ". The hot component is an ordinary light neutrino with mass ∼ 25h 2 eV while the warm component is a sterile neutrino with mass ∼ 700h 2 eV. The two types of dark matter arise entirely within the neutrino sector and do not require separate physical origins. We calculate the linear t...

2002
FREDI KRONENBERG

-1. The effect of ambient temperature on frequency, intensity and duration of hot flashes was studied in six women with hot flashes who were exposed to cool (T a = 19°C) and warm (ira = 31°C) /'as for 8-h periods. Heart rate, skin resistance, core and skin temperatures, subjective hot flash intensity and duration were recorded. 2. In the cool T~ as compared with the warm Ta, hot flashes were si...

Journal: :Friction 2021

Abstract The transient tribological phenomenon and premature lubricant breakdown have been widely observed in metal forming, leading to excessive friction at the contact interfaces. In this research, behaviour of a two-phase were studied under complex loading conditions, featuring abrupt interfacial temperature, load, sliding speed changes, thus representing severe conditions warm/hot forming a...

2002
Jin Cheng Y. Lawrence Yao

Laser forming of steel is a hot forming process with high heating and cooling rate, during which strain hardening, dynamic recrystallization, and phase transformation take place. Numerical models considering strain rate and temperature effects only usually give unsatisfactory results when applied to multiscan laser forming operations. This is mainly due to the inadequate constitutive models emp...

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