Spectrum sensing, the problem of detecting the presence of licensed user in the channel is considered in this paper. Energy detection is best suited for the spectrum sensing when prior knowledge about the primary users is unavailable. Existing works report improved versions of energy detection which primarily focuses on maximizing the detection performance. Sensing error minimization is an impo...

Abstract. The Maxwell elasto-brittle (MEB) rheology uses a damage parameterization to represent the brittle fracture of sea ice without involving plastic laws constrain deformations. conventional MEB is based on correction super-critical stresses that binds simulated stress yield criterion but leads growth errors in field. A generalized developed reduce this error and investigate influence sche...

Reactions of the h-cyclopentadienyl-h-amido dimethyl titanium derivative [Ti{h-C5H4SiMe2[h-N(C6H3Me2)]}Me2] (1) with tris(pentafluorophenyl)borane B(C6F5)3 in hexane at room temperature yield a thermally stable bright yellow microcrystaline solid identified by elemental analysis as [Ti{h-C5H4SiMe2[h-N(C6H3Me2)]}Me{MeB(C6F5)3}] (2). A solution of 1 in CD2Cl2 at −78°C affords the ion-pair complex...

This thesis gives a general approach to deriving screening rules for convex optimization problems. It splits up in three steps. As the first step, the Karush-Kuhn-Tucker conditions are used to derive necessary conditions that allow to reduce the problem size. They depend on the optimal solution itself. The second step is to gather information on the optimal solution from a known approximation. ...

We explore a technique to learn Support Vector Models (SVMs) when training data is partitioned among several data sources. The basic idea is to consider SVMs which can be reduced to Minimal Enclosing Ball (MEB) problems in an feature space. Computation of such SVMs can be efficiently achieved by finding a coreset for the image of the data in the feature space. Our main result is that the union ...

Se presenta la caracterización de 1088 cuentas provenientes colecciones museos y recolecciones campo del norte Salta, Argentina. identificaron confeccionadas sobre toba, pizarra, vidrio, material malacológico minerales. Para 27 ellas se usó meb-edx drx, registrándose turquesa, sodalita ópalo, modificaron sus clasificaciones previas a partir datos geoquímicos observación macroscópica. Fi...