We describe a resource bounding technique called the Flow Balance Constraint (FBC) to tightly bound the amount of available resource for a set of partially ordered events with piecewise constant resource impact. We provide an efficient algorithm for calculating FBC and bound its complexity. We compare this technique with two existing resource bounding techniques, the Balance Constraint (BC) due...

Tensor factorization has become a popular method for learning from multirelational data. In this context, the rank of the factorization is an important parameter that determines runtime as well as generalization ability. To identify conditions under which factorization is an efficient approach for learning from relational data, we derive upper and lower bounds on the rank required to recover ad...

Econometric literature on financial durations has been popularized by the introduction of the Autoregressive Conditional Duration model. In the latest years, a lot of refinements have been suggested. Following financial market microstructure arguments, it is argued that a Pareto distribution is a meaningful representation for durations. The model is analyzed under the hypothesis of regime-switc...

According to the European Directive 2009/28/EC 1 , renewable energy systems (RES) enjoy preferential treatment in the electricity grid in so far as the secure operation of the power system permits. However, there will be times when it is not possible to accommodate all priority dispatch generation such as variable renewable generation (VRG) sources like wind and solar while maintaining the safe...

A numerical study of nonlinear r-modes in isentropic, rapidly rotating relativistic stars, via 3-D general-relativistic hydrodynamical evolutions, is presented. On dynamical timescales, we find no evidence for strong coupling of r-modes to other modes at amplitudes of order one or larger. Therefore, unless nonlinear saturation sets in on longer timescales, the maximum r-mode amplitude is of ord...

Isentropic processes in thermodynamics are fundamental to our understanding of numerous physical phenomena across different scientific and engineering fields. They provide a theoretical reference case for the evaluation real thermodynamic observations. Yet, as analytical relations isentropic transformations gas dynamics limited ideal gases, inability analytically describe non-ideal gases is sho...

We consider the Navier-Stokes equations for viscous compressible heat-conducting fluids with cylindrical symmetry. Our main purpose is to study the boundary layer effect and convergence rates as the shear viscosity μ goes to zero. We show that the boundary layer thickness and a convergence rate are of order O(μ) with 0 < α < 1/2 and O( √ μ) respectively, thus extending the result for isentropic...

In contrast to the experimentally widely used isentropic demagnetization process for cooling to ultra-low temperatures we examine a particular classical model system that does not cool, but rather heats up with isentropic demagnetization. This system consists of several magnetite particles in a colloidal suspension, and shows the uncommon behavior of disordering structurally while ordering magn...

The unsteady performance of a twin-entry variable geometry turbine for an automotive turbocharger is presented. A single-entry variable geometry turbine was initially designed based on a commercial nozzle-less turbine. The variable geometry single-entry volute was later modified to twin-entry through partitioning. A comprehensive range of steady testing and evaluation was also conducted as part...

The interaction of elementary waves for isentropic flow in a variable cross-section duct is obtained (\cite{ShengZhang}). authors have discussed rarefaction wave or shock interacts with stationary wave. In this paper, we extend their results to the nonisentropic flow. It can be proved that if one changes $(u,\rho)$ plane $(u,p)$ case, moved parallel from case when contact discontinuity involved...