Cracks cause to change dynamic response of beams and make discontinuity in slope of the deflection of the beams. The dynamic analysis of the Euler-Bernoulli cracked beam on the elastic foundation subjected to the concentrated load is presented in this paper. The stiffness of the elastic foundation and elastic supports influence on vibrational characteristics of the cracked beam. The Dynamic Gre...

  An optimal desirability function method is proposed to optimize multiple responses in multiple production scenarios, simultaneously. In dynamic environments, changes in production requirements in each condition create different production scenarios. Therefore, in multiple production scenarios like producing in several production lines with different technologies in a factory, various fitted r...

In this paper, for the first time we have studied theoretically the effect of exchange-correlation holes around electrons in GaAlAs/GaAs/GaAlAs nanostructure on the temperature-dependent dynamic dielectric function of two-dimensional electron gas by employing random phase, STLS and Hubbard approximations. Also, we have investigated another interesting system which is coupled quantum wells struc...

In this paper, a novel problem of observer-based adaptive fuzzy fractional control for fractional order dynamic systems with commensurate orders is investigated; the control scheme is constructed by using the backstepping and adaptive technique. Dynamic surface control method is used to avoid the problem of “explosion of complexity” which is caused by backstepping design process. Fuzzy logic sy...

Institut für Theoretische Physik, Friedrich-A Staudtstraße 7, 91058, Erlangen, Germany. Institut für Theoretische Physik II: Wei Düsseldorf, Universitätsstraße 1, 40225 Düs Max-Planck-Institut für Intelligente System Germany Institut für Theoretische Physik IV, Univers Stuttgart, Germany Institut für Materialphysik im Weltraum, De (DLR), 51170 Köln, Germany Zukunskolleg, Fachbereich Physik, Un...

We present an O(n2) dynamic programming algorithm for lot sizing with inventory bounds and fixed costs, where n is the number of time periods. The algorithm utilizes a hierarchy of two layers of value functions and improves the complexity bound of an earlier O(n3) algorithm for concave-cost and bounded inventory. c © 2007 Elsevier B.V. All rights reserved.