نتایج جستجو برای: energy ratio

تعداد نتایج: 1132250  

Reza Ahmadi Pouya, Saeed Soltanali

Effective parameters that can effect on the performance of the separation system consist of operating pressure, operating temperature, reflux ratio, and kind of produce desirable products and different sequences of splits. As take a separation system with optimal performance is dependent on optimization of above mentioned effective parameters. In generally, there are two criteria (as object fun...

, H. Homaei, H. Golestanian, M. Heidari,

This paper concentrates on a new procedure which experimentally recognises gears and bearings faults of a typical gearbox system using a least square support vector machine (LSSVM). Two wavelet selection criteria Maximum Energy to Shannon Entropy ratio and Maximum Relative Wavelet Energy are used and compared to select an appropriate wavelet for feature extraction. The fault diagnosis method co...

Journal: :Physical review letters 2000
Fioravanti Mussardo Simon

We consider the universality class of the two-dimensional tricritical Ising model. The scaling form of the free energy leads to the definition of universal ratios of critical amplitudes which may have experimental relevance. We compute these universal ratios by a combined use of results coming from perturbed conformal field theory, integrable quantum field theory, and numerical methods.

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2001
D Fioravanti G Mussardo P Simon

The scaling form of the free energy near a critical point allows for the definition of various thermodynamical amplitudes and the determination of their dependence on the microscopic nonuniversal scales. Universal quantities can be obtained by considering special combinations of the amplitudes. Together with the critical exponents they characterize the universality classes and may be useful qua...

Journal: :Physical review. D, Particles and fields 1995
Anninos Hobill Seidel Smarr Suen

We present results from the first fully nonlinear numerical calculations of the head–on collision of two unequal mass black holes. Selected waveforms of the most dominant ` = 2, 3 and 4 quasinormal modes are shown, as are the total radiated energies and recoil velocities for a range of mass ratios and initial separations. Our results validate the close and distant separation limit perturbation ...

Journal: :Physical review letters 2010
T V Liseykina S Pirner D Bauer

The generation of relativistic attosecond electron bunches is observed in three-dimensional, relativistic particle-in-cell simulations of the interaction of intense laser light with droplets. The electron bunches are emitted under certain angles which depend on the ratios of droplet radius to wavelength and plasma frequency to laser frequency. The mechanism behind the multi-MeV attosecond elect...

Journal: :Physical review letters 2006
S Bellm J Lower K Bartschat

We present high-precision (e,2e) measurements and calculations for the e-He four-body Coulomb breakup problem. Cross-section ratios for ionization and excitation of the first three excited states of He+ relative to the ground state have been measured for incident energies between 112 and 319 eV. Comparing the data with predictions from a state-of-the-art hybrid distorted-wave+convergent R matri...

1996
K. Kajantie

We compute as a function of rapidity y the baryon number carried by quarks and antiquarks with pT > p0 ≈ 2 GeV produced in Pb+Pb collisions at TeV energies. The computation is carried out in lowest order QCD perturbation theory using structure functions compatible with HERA results. At p0 = 2 GeV the initial gluon density is both transversally saturated and thermalised in the sense that the ene...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2012
Cathal Smyth Francesca Fassioli Gregory D Scholes

We review various methods for measuring delocalization in light-harvesting complexes. Direct relations between inverse participation ratios (IPRs) and entanglement measures are derived. The B850 ring from the LH2 complex in Rhodopseudomonas acidophila is studied. By analysing electronic energy transfer dynamics in the B850 ring using different metrics for quantifying excitonic delocalization, w...

Journal: :The Journal of chemical physics 2004
G J Rathbone R M Rao E D Poliakoff Kwanghsi Wang V McKoy

We report results of experimental and theoretical studies of the vibrational branching ratios for CO 4sigma(-1) photoionization from 20 to 185 eV. Comparison with results for the 2sigma(u)(-1) channel of the isoelectronic N2 molecule shows the branching ratios for these two systems to be qualitatively different due to the underlying scattering dynamics: CO has a shape resonance at low energy bu...

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