Ying-Cheng Lai a,b,~, Edward Ott a,b,c and Celso Grebogi a,d a Laboratory for Plasma Research, University of Maryland, College Park, MD 20742, USA b Department of Physics andAstronomy, University of Maryland, College Park, MD 20742, USA c Department of Electrical Engineering, University of Maryland, College Park, hid 20742, USA d Department of Mathematics and Institute for Physical Science and ...

A measurable quality characteristic is assumed to follow Inverse Rayleigh distribution. Variable control charts based on the extreme values of each subgroup are constructed. The technique of analysis of means (ANOM) is adopted to work out the decision lines of Inverse Rayleigh distribution. The preferability of the proposed ANOM decision lines over that of Ott (1967) [11] is illustrated by some...

Traditional television screens have lost their monopoly on television content. With a helping hand of digitalization, the introduction of ever more screens in our lives and increasingly faster network technologies, a wide variety of alternative screens and sources of television content are trying to conquer a piece of the audiences' viewing time. This evolution calls for new kinds of services a...

Bereits seit 2007 sind die Mitarbeiter weltweit vernetzt. Der enorme Erfolg von Internetplattformen wie Facebook oder XING hat unter anderem dazu geführt, dass die ursprünglich primär für private Zwecke konzipierten Social Networking Services (SNS) in den vergangenen Jahren auch für Unternehmen zunehmend interessanter wurden. Dementsprechend ver suchen aktuell bereits einige Organisationen die ...

Code dissemination in wireless sensor networks (WSNs) is a procedure for distributing a new code image over the air in order to update programs. Due to the fact that WSNs are mostly deployed in unattended and hostile environments, secure code dissemination ensuring authenticity and integrity is essential. Recent works on dynamic packet size control in WSNs allow enhancing the energy efficiency ...

In the wake of the global financial crisis, member jurisdictions of the G-20 have embarked upon an ambitious program of reforms to the structure and operation of financial markets. One key element of the reform program is to improve the management of counterparty risk and reduce interconnectedness in over-the-counter (OTC) derivative markets by encouraging greater use of centralised financial m...

Optimal tracking control (OTC) for discrete time-delay systems affected by persistent disturbances with quadratic performance indexes is considered. Optimal tracking controller is designed based on a sensitivity approximation approach. By introducing a sensitivity parameter, we transform the original OTC problem into a series of difference equations without time-advance on time-delay terms. The...

Convergence of the iterative method based on the successive overrelaxation (SOR) method is investigated to solve the matrix equation in the moment analysis of array antennas. It is found this method can be applied to the sub domain method of moments with fast convergence if the grouping technique is applied and the over-relaxation parameter is properly selected, and the computation time for sol...

In family studies with multiple continuous phenotypes, heritability can be conveniently evaluated through the so-called principal-component of heredity (PCH, for short; Ott and Rabinowitz in Hum Hered 49:106–111, 1999). Estimation of the PCH, however, is notoriously difficult when entertaining a large collection of phenotypes which naturally arises in dealing with modern genomic data such as th...

We show that the 2 × 2 × 2 interference network, i.e., the multihop interference network formed by concatenation of two 2-user interference channels achieves the min-cut outer bound value of 2 DoF, for almost all values of channel coefficients, for both time-varying or fixed channel coefficients. The key to this result is a new idea, called aligned interference neutralization, that provides a w...