نتایج جستجو برای: waite th method th method

تعداد نتایج: 1670392  

2001
Valeri Mladenov Hans Hegt Arthur van Roermund

In this paper we present a method for stability analysis of high order Sigma-Delta modulators. The method is based on a parallel decomposition of the modulator. Using this presentation the general N-th order modulator could be considered as made up of N first order modulators, which interact only through the quantizer function. The decomposition helps us to extract the stability conditions of t...

Journal: :Numerische Mathematik 2012
Jorge San Martín Jean-François Scheid Loredana Smaranda

In this paper, we propose a new characteristics method for the discretization of the two dimensional fluid-rigid body problem in the case where the densities of the fluid and the solid are different. The method is based on a global weak formulation involving only terms defined on the whole fluid-rigid domain. To take into account the material derivative, we construct a special characteristic fu...

2006

Introduction Chlorophyll, in various forms, is bound within the living cells of algae, phytoplankton, and other plant matter found in environmental water. Chlorophyll is a key biochemical component in the molecular apparatus that is responsible for photosynthesis, the critical process in which the energy from sunlight is used to produce life-sustaining oxygen. In general, the amount of chloroph...

Journal: :European Transactions on Telecommunications 2005
Tao Wang

The method for the signal parameters selection independent of time hopping (TH) codes is presented to improve the processing gain (PG) of the single-user TH ultra-wideband (UWB) systems above a prescribed level. The UWB systems operate in the multi-path channel with narrowband interference (NBI), which is modelled as a zero-mean stationary random process. Binary pulse amplitude modulation as we...

Journal: :Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine 2012
J W Weidner S G Mashnik K D John B Ballard E R Birnbaum L J Bitteker A Couture M E Fassbender G S Goff R Gritzo F M Hemez W Runde J L Ullmann L E Wolfsberg F M Nortier

Cross sections for the formation of (225,227)Ac, (223,225)Ra, and (227)Th via the proton bombardment of natural thorium targets were measured at a nominal proton energy of 800 MeV. No earlier experimental cross section data for the production of (223,225)Ra, (227)Ac and (227)Th by this method were found in the literature. A comparison of theoretical predictions with the experimental data shows ...

2004
Roland Perko Horst Bischof

This work presents a new method of fast cubic and higher order image interpolation. The evaluation of the piecewise n-th order polynomial kernels is accelerated by transforming the polynomials into the interval [0, 1], which has the advantage that some terms of the polynomials disappear, and that several coefficients could be precalculated, which is proven in the paper. The results are exactly ...

2007
Aubin Lecointre Daniela Dragomirescu Robert Plana

This paper presents a method for system architecture modeling of an IR-UWB (Impulse Radio Ultra WideBand) receiver for sensors networks applications. We expose the way for designing an FPGA (Field Programmable Gate Array) receiver starting from a previous study based on system modeling on Matlab. The proposed receiver architecture is first designed and validated on Matlab, before being implemen...

Journal: :J. Log. Comput. 2013
Ivan N. Soskov

The paper is devoted to the study of Marker’s extensions of sequences of countable structures. In the first part of the paper definability properties of the Marker’s extension are investigated. The results demonstrate that for any sequence of structures the Marker’s extension codes the elements of the sequence so that the n-th structure of the sequence appears positively at the n-th level of th...

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