نتایج جستجو برای: time constant

تعداد نتایج: 2043097  

Journal: :Physical Review D 2006

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Journal: :Europhysics Letters (EPL) 2003

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Journal: :The Astrophysical Journal 2013

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Journal: :Iranian Journal of Physics Research 2022

Two dark energy models $Lambda sim (frac{dot{a}}{a})^{2}$ and frac{ddot{a}}{a}$ are studied by taking into account the gravitational constant G is a time-dependent parameter in framework of Chern-Simons modified gravity. It found that shown increasing behavior proportional to those time for each model. These compared with observational results regulating values parameters. Our investigations in...

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Journal: Iranian Journal of Materials Science and Engineering 2016
A. A. Babakoohi Ashrafi, A. Habibolla Zade, H. Mohammadi,

In this paper, the influence of heat treatment on PH17-7 stainless steel spring was evaluated. Precipitation hardening phenomenon of  PH 17-7 steel was evaluated in three stages. First, the spring constant changes with time and temperature was evaluated. Second, the spring constant changes with respect to its original length at constant temperature and time with blocking (spring length aft...

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Journal: :Case Studies in Thermal Engineering 2017

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Journal: :Algorithmica 2019

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Journal: :ICT Express 2019

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Journal: :Electronics And Electrical Engineering 2011

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Journal: :Theoretical Computer Science 1993

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