نتایج جستجو برای: time thermodynamic

تعداد نتایج: 1927055  

Journal: :Proceedings of the National Academy of Sciences 2012

Journal: :General Relativity and Gravitation 2021

In the frame work of Palatini approach to modified f(R) theories gravity, we attempt investigate thermodynamic behavior time-dependent wormhole geometries. By considering an evolving spacetime, find field equations in gravity. The energy density and pressure are redefined order satisfy continuity equation. To discuss behavior, expression for variation total entropy is obtained. Then, extend our...

Journal: :Physical review 2021

To reveal the role of quantumness in Otto cycle and to discuss validity thermodynamic uncertainty relation (TUR) cycle, we study quantum its classical counterpart. In particular, calculate exactly mean values relative error quantities. quasistatic limit, reduces productivity precision compared that absence quantumness, whereas finite-time mode, it can increase cycle's precision. Interestingly, ...

2013
Richard P. Sear

Recent experimental [Diao et al., J. Am. Chem. Soc. 2011 133, 3756.] and simulation results [Sear, J. Phys. Cond. Matt. 2012 24, 052205.] are not consistent with a nucleation rate that is in the thermodynamic limit. This has consequences, if the rate is not in the thermodynamic limit, the time for nucleation will not necessarily scale as one over system size. Here, I show how to analyse data fo...

2013
STEFANO OLLA

Abstract. We obtain macroscopic isothermal thermodynamic transformations by space-time scalings of a microscopic Hamiltonian dynamics in contact with a heat bath. The microscopic dynamics is given by a chain of anharmonic oscillators subject to a varying tension (external force) and the contact with the heat bath is modeled by independent Langevin dynamics acting on each particle. After a diffu...

A. Islamnezhad E. D. Zobairi Sh. Keyvan,

A nanocomposite membrane Cu2+ ion-selective electrode has been constructed using a new compound ethyl 1,2,3,4-tetrahydro-4-(4-methoxyphenyl)-6-methyl-2-oxopyrimidine-5-carboxylat (ETMOC) as a neutral ionophore. The electrode works properly. It responds to Cu2+ ion with a sensitivity of 29.5 ± 0.2 mV/decade over the range 1.0 × 10−9 to 5.0 × 10−1M at p...

2017
Yunguo Li Lidunka Vočadlo Dario Alfè John Brodholt

Recent studies show the Earth’s core may contain more magnesium (Mg) than previously thought, with perhaps up to 6 wt% in the early core and ∼1wt% still existing now. The Mg partitioning between liquid and solid iron (Fe) under the relevant conditions is needed, therefore, in order to establish whether the presence of magnesium will have an effect on core properties, particularly those of the i...

Journal: :Journal of computer-aided molecular design 2016
Yuan Hu Brad Sherborne Tai-Sung Lee David A. Case Darrin M. York Zhuyan Guo

In drug discovery, protonation states and tautomerization are easily overlooked. Through a Merck-Rutgers collaboration, this paper re-examined the initial settings and preparations for the Thermodynamic Integration (TI) calculation in AMBER Free-Energy Workflows, demonstrating the value of careful consideration of ligand protonation and tautomer state. Finally, promising results comparing AMBER...

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