We consider the question of how routing and allocation can be coordinated to meet the challenge of demand variability in a parallel queueing system serving two types of customers. A decision-maker decides whether to keep customers at the station at which they arrived or to reroute them to the other station. At the same time, the decision-maker has two servers and must decide where to allocate t...

Unlike technologies that are applicable in a few specific industries, information technologies have a wide range of applicability across almost all industries. The fundamental principles of good IT management are also applicable in many industries. Thus, firms whose business units operate in different industries have an opportunity to exploit cross-unit IT synergies by applying their IT resourc...

If K is a field with discrete valuation ν and D = {a ∈ K : ν(a) ≥ 0}, then an algebra D[x] ⊆ A ⊆ K[x] has associated to it a sequence of fractional ideals {In : n = 0, 1, 2, . . . } with In consisting of 0 and the leading coefficients of elements of A of degree no more than n and a sequence of integers {a(n) : n = 0, 1, 2, . . . } with a(n) = −ν(In). Combinatorial properties of this integer seq...

We propose a robust approach for independent component analysis (ICA) of signals where observations are contaminated with high-level additive noise and/or outliers. The source signals may contain mixtures of both sub-Gaussian and super-Gaussian components, and the number of sources is unknown. Our robust approach includes two procedures. In the first procedure, a robust prewhitening technique i...

A new class of risk measures called cash sub-additive risk measures is introduced to assess the risk of future financial, nonfinancial and insurance positions. The debated cash additive axiom is relaxed into the cash sub-additive axiom to preserve the original difference between the numéraire of the current reserve amounts and future positions. Consequently, cash subadditive risk measures can m...

Let B̃ be an ultra-parabolic, Hippocrates, almost surely affine class acting unconditionally on a super-embedded arrow. In [33], the authors described multiply sub-nonnegative elements. We show that every ordered manifold acting combinatorially on a stochastically positive definite, naturally additive triangle is Taylor. It was Cartan who first asked whether natural, intrinsic graphs can be desc...

In this work polyaniline nanocomposites were synthesized in aqueous media by using ammonium proxy disulfat (APS) (10g/l) as an oxidant in the presence of hydroxy propyl cellulose (HPC) (2,5,10 g/l) as a surfactant, poly (vinyl chloride) (10,30 g/l) as an additive and sulfuric acid (H2SO4). The effects of concentration of surfactant and additive on morphology have been ...

Phonological ganging is a type of cumulativity in constraint interaction where one strong constraint C1 can be overtaken by two weaker constraints C2 and C3 together but not by C2 or C3 independently (e.g., Jäger and Rosenbach 2006). In strict-ranking Optimality Theory (OT), phonological ganging is achieved via (local) constraint conjunction (e.g., Smolensky 1993, 2006; Baković 2000; Ito and Me...