Showing 1 - 10 of 459
Simple exclusion processes for particles moving along two parallel lattices and jumping between them are theoretically investigated for asymmetric rates of transition between the channels. An approximate theoretical approach, that describes the particle dynamics exactly in any vertical cluster...
Persistent link: https://www.econbiz.de/10010873098
The Brownian motion of a single, classical particle, meandering in a zigzag-shaped, two-dimensional potential pipeline is addressed. When driven away from thermal equilibrium by an unbiased, alternating force of moderate frequency, the particle exhibits the phenomenon of absolute negative...
Persistent link: https://www.econbiz.de/10011057219
The evolution of the energy distribution function of the adatoms is described by means of the Chapman–Kolmogorov equation with the inclusion of an extra term which takes account of diatom formation. At steady state the integrodifferential equation is solved in closed form for a two band...
Persistent link: https://www.econbiz.de/10011062409
We experimentally demonstrate that, for sufficiently small perturbations, a hedgehog (H) and antihedgehog (H̄) point defect in nematic liquid crystals can be asymptotically free. For larger external perturbations, we find that the annihilation dynamics of an HH̄ pair to a static soliton is...
Persistent link: https://www.econbiz.de/10011062757
We present here new evidence that after a quench the planar Potts model on the square lattice relaxes towards a glassy state if the number of states q is larger than four. By extrapolating the finite size data we compute the average energy of these states for the infinite system with periodic...
Persistent link: https://www.econbiz.de/10011063547
Persistent link: https://www.econbiz.de/10009324928
This thesis presents a methodology to incorporate reservoir uncertainties and estimate the loss in project value when facility planning decisions are based on erroneous estimates of input variables. We propose a tank model along with integrated asset development model to simulate the concept...
Persistent link: https://www.econbiz.de/10009429339
Estimated labor supply functions are important tools when designing an optimal income tax or calculating the effect of tax reforms. It is therefore of large importance to use estimation methods that give reliable results and to know their properties. In this paper Monte Carlo simulations are...
Persistent link: https://www.econbiz.de/10014469584
We analyse overall cost efficiency in Spanish local governments during the crisis period (2008-2015). To this end, we first consider some of the most popular nonparametric methods to evaluate local government efficiency, data envelopment analysis and free disposal hull, as well as recent...
Persistent link: https://www.econbiz.de/10014496087
We propose in this article the use of a particular version of the tests of Robinson (1994) for testing seasonally fractionally integrated processes. The tests have standard null and local limit distributions and allow us to test unit and fractional seasonal roots even with different amplitudes...
Persistent link: https://www.econbiz.de/10010310259