NMR well logging of petroleum reservoir require the measurement of the NMR response of water, oil, and gas in the pore space of rocks at elevated temperatures and pressures. The viscosity of the oil may range from less than 1 cp to greater than 10,000 cp. Also, the oil and gas are not a single component but rather a broad distribution of components. The log mean T1 and T2 relaxation time of dea...

We study the boundary-dissipated transverse field Ising model described by a Lindblad master equation and exactly solve its Liouvillian spectrum in whole parameter space. By mapping into Su-Schrieffer-Heeger with imaginary boundary potentials under parity constraint, we rapidity analytically thus construct strictly constraint condition. Our results demonstrate that displays four different struc...

Regular and stochastic behavior in the time series of Parkinsonian pathological tremor velocity is studied on the basis of the statistical theory of discrete non-Markov stochastic processes and flicker-noise spectroscopy. We have developed a new method of analyzing and diagnosing Parkinson’s disease (PD) by taking into consideration discreteness, fluctuations, longand short-range correlations, ...

in this paper, an interference management for multi-beam satellite network to enhance spectral efficiency is studied. first, a two-satellite for future generation satellite network using cognitive radio technology is provided.this network is composed of a secondary satellite and aprimary satellite where the primary satellite system does not suffer from severe destructive interferences coming fr...

The exact solution for a system with two–particle coagulation and decoagulation has been studied. The spectrum of the Hamiltonian of the system is found. It is shown that the steady state is two–fold degenerate. The average number density in each cite 〈ni(t)〉 and the equal time two–point functions 〈ni(t), nj(t)〉 are calculated. Any equal time correlation functions at large times, 〈ni(∞), nj(∞),...

We report on a combined experimental and theoretical study of the spin-dependent relaxation processes in the electron system of an iron film on Cu(100). Spin-, time-, energy- and angle-resolved two-photon photoemission shows a strong characteristic dependence of the lifetime of photoexcited electrons on their spin and energy. Ab initio calculations as well as a many-body treatment corroborate t...