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101.
Michael Blank 《Journal of statistical physics》2010,140(1):170-197
A new class of exclusion type processes acting in continuum with synchronous updating is introduced and studied. Ergodic averages
of particle velocities are obtained and their connections to other statistical quantities, in particular to the particle density
(the so called Fundamental Diagram) is analyzed rigorously. The main technical tool is a “dynamical” coupling applied in a
nonstandard fashion: we do not prove the existence of the successful coupling (which even might not hold) but instead use
its presence/absence as an important diagnostic tool. Despite that this approach cannot be applied to lattice systems directly,
it allows to obtain new results for the lattice systems embedding them to the systems in continuum. Applications to the traffic
flows modelling are discussed as well. 相似文献
102.
103.
Catalan G Janssens A Rispens G Csiszar S Seeck O Rijnders G Blank DH Noheda B 《Physical review letters》2006,96(12):127602
Thin films of PbTiO3, a classical ferroelectric, have been grown under tensile strain on single-crystal substrates of DyScO3. The films, of only 5 nm thickness, grow fully coherent with the substrate, as evidenced by synchrotron x-ray diffraction. A mapping of the reciprocal space reveals intensity modulations (satellites) due to regularly spaced polar domains in which the polarization appears rotated away from the substrate normal, characterizing a low-symmetry phase not observed in the bulk material. This could have important practical implications since these phases are known to be responsible for ultrahigh piezoelectric responses in complex systems. 相似文献
104.
M. L. Blank 《Doklady Mathematics》2012,85(1):42-45
We consider three types of exclusion processes (collective random walks of countable configurations of particles with interactions of excluded volume type) with discrete time (two lattice and one in continuous space). Explicit representation for the corresponding nontrivial invariant measures and time-average velocities of the particles as a function of particle density in configuration (fundamental diagram) is obtained. 相似文献
105.
The X(2)Σ(1/2)(+), A(2)Π(1∕2), A(2)Π(3∕2), and B(2)Σ(1/2)(+) potential energy curves and associated dipole matrix elements are computed for M + Ng at the spin-orbit multi-reference configuration interaction level, where M = K, Rb, Cs and Ng = He, Ne, Ar. Dissociation energies and equilibrium positions for all minima are identified and corresponding vibrational energy levels are computed. Difference potentials are used together with the quasistatic approximation to estimate the position of satellite peaks of collisionally broadened D2 lines. The comparison of potential energy curves for different alkali atom and noble gas atom combinations is facilitated by using the same level of theory for all nine M + Ng pairs. 相似文献
106.
Convergence of Rothe's method for the fully nonlinear parabolic equation ut+F(D2u, Du, u, x, t)=0 is considered under some continuity assumptions on F. We show that the Rothe solutions are Lipschitz in time, Hölder in space, and they solve the equation in the viscosity sense. As an immediate corollary we get Lipschitz behavior in time of the viscosity solutions of our equation. 相似文献
107.
Read M.E. Nusinovich G.S. Dumbrajs O. Bird G. Hogge J.P. Kreischer K. Blank M. 《IEEE transactions on plasma science. IEEE Nuclear and Plasma Sciences Society》1996,24(3):586-595
A design for a 3-MW 140-GHz gyrotron based on the use of a coaxial cavity is given. The cavity mode is TE21,13, chosen so that the ohmic heating on both the inner and outer conductors would be low enough for CW operation. The mode selection process, nonlinear, multimode and time-dependent modeling of the beam wave interaction, and gun design are discussed in detail. An inverted magnetron injection gun (MIG) is used to accommodate the inner conductor. The radiation is coupled out via a quasi-optical mode converter, consisting of an irregular cylindrical waveguide section followed by a step-cut launching aperture and a single near-parabolic mirror. The design of these components is also described 相似文献
108.
Nicolas Hildenbrand Bernard A. BoukampPieter Nammensma Dave H.A. Blank 《Solid State Ionics》2011,192(1):12-15
The electrochemical performance of porous La0.6Sr0.4Co0.2Fe0.8O3 − δ (LSCF) cathodes is improved by inserting a dense LSCF layer. A 200 nm thin layer is deposited on the electrolyte substrate by pulsed laser deposition, prior to the screen printing process. This procedure enhances the adherence of the porous cathode layer to the electrolyte and allows a lower sintering temperature, which reduces grain growth during sintering. In air a decrease in polarization resistance with a factor of 3 is observed for electrodes sintered at 1100 °C. The apparent electrolyte resistance is also reduced with the dense PLD layer. A remarkable change in Po2 dependence is observed for the Gerischer parameters that describe part of the electrode impedance, indicating a possible change in the oxygen transfer mechanism. 相似文献
109.
A. Bey B. Blank G. Canchel C. Dossat J. Giovinazzo I. Matea V. -V. Elomaa T. Eronen U. Hager J. Hakala A. Jokinen A. Kankainen I. Moore H. Penttilä S. Rinta-Antila A. Saastamoinen T. Sonoda J. Äystö N. Adimi G. de France J. -C. Thomas G. Voltolini T. Chaventré 《The European Physical Journal A - Hadrons and Nuclei》2008,36(2):121-126
Beta-decay branching ratios of 62Ga have been measured at the IGISOL facility of the Accelerator Laboratory of the University of Jyv?skyl?. 62Ga is one of the heavier T
z = 0 , 0+ → 0+ β -emitting nuclides used to determine the vector coupling constant of the weak interaction and the Vud quark-mixing matrix element. For part of the experimental studies presented here, the JYFLTRAP facility has been employed
to prepare isotopically pure beams of 62Ga . The branching ratio obtained, BR = 99.893(24) %, for the super-allowed branch is in agreement with previous measurements and allows to determine the ft value and the universal Ft value for the super-allowed β -decay of 62Ga . 相似文献
110.
L. P. Eksperiandova K. N. Belikov S. V. Khimchenko T. A. Blank 《Journal of Analytical Chemistry》2010,65(3):223-228
The papers takes stock of different methods for evaluating the detection (c
min) and determination (c
lim) limits of components described in the literature and presents a comparative analysis of the results of such evaluations.
It is shown that use of the data on the fluctuations of the blank experiment, in spite of their wide application for such
evaluations, gives ambiguous estimates for c
min and c
lim. The most correct method for evaluating the specified parameters is the experimental determination of the actual analyte
concentration (content) from the empirical concentration dependence of the relative standard deviation. In case when this
estimation method cannot be used, it is recommended to evaluate c
lim by the lower boundary of the calibration graph. The article may be useful for inexperienced analysts experimenters in choosing
a method for evaluating the results obtained. 相似文献