Results 281 to 290 of about 21,096,303 (314)

Measurement Theory and the P‐matrix: Ramifications of Variable Choice

The FASEB Journal, 2016
Choosing which measurements to include in an analysis is often as much a matter of tradition and training as critical evaluation. Variable choice, however, may have unintended consequences on conclusions, especially in studies that assume these variables reflect evolutionary and developmental processes.
Kristen R. R. Savell, Benjamin M. Auerbach   +1 more
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A generalised P-matrix model for SAW filters

IEEE Symposium on Ultrasonics, 2003, 2004
The P-matrix model, which can be seen as a discrete version of the continuous COM model, is a well established tool to analyse the electro-acoustic properties of IDTs and reflector gratings. It relates both outgoing acoustic surface waves and the electric current to both incoming acoustic surface waves and the electric voltage.
openaire   +1 more source

P matrix analysis of nucleon-nucleon scattering

Nuclear Physics A, 1984
Abstract The P matrix is useful to establish the connection between the short range quark and gluon, and the long range nucleon and meson degrees of freedom which play a role in the interactions between hadrons. It can be used as a phenomenological tool in data parametrization but, more important, it contains information about the short range ...
openaire   +1 more source

P-Matrix Analysis of Surface Acoustic Waves in Piezoelectric Phononic Crystals

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2016
Large time/memory costs have constituted a significant obstacle for accurately analyzing surface acoustic waves (SAWs) in large size two-dimensional (2-D) piezoelectric phononic crystals (PnCs). To overcome this obstacle, this study introduces the unit P matrix and its associated cascading.
Yahui Tian, Honglang Li, Yabing Ke, Ce Yuan, Shitang He   +4 more
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A Simple P-Matrix Linear Complementarity Problem for Discounted Games

2008
The values of a two-player zero-sum binary discounted game are characterized by a P-matrix linear complementarity problem (LCP). Simple formulas are given to describe the data of the LCP in terms of the game graph, discount factor, and rewards. Hence it is shown that the unique sink orientation (USO) associated with this LCP coincides with the strategy
Marcin Jurdzinski, Rahul Savani
openaire   +1 more source

A linear complementarity problem with an n by 2n “P”-matrix

1978
The problem considered in this paper is given by the conditions: w=q+Mv+Nx, w≧0, v≧0, x≧0, v≦r, w T v=0 and (r−v) T x=0. Here q, r are n-vectors with r>0 and M, N are n by n matrices. We say that an n by 2n matrix (M, N) has the P-property if all of its “principal” minors are positive.
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P-matrix modeling of transverse-mode coupled resonator filters

1993 Proceedings IEEE Ultrasonics Symposium, 1993
We develop an efficient analysis and synthesis tool for the design of transverse-mode coupled resonator filters. We describe the energy storage effect and the electrical and mechanical loading effect with a one-dimensional model. The two-dimensional nature of the problem is taken into account by shape functions, representing the nonuniform velocity ...
G. Scholl, W. Ruile, P.H. Russer
openaire   +1 more source

Examining thePmatrix

Physical Review D, 1987
Exact model calculations are employed to test the reliability of methods using properties of bag-model states to obtain P- or F-matrix parameters.
, Crawford, , Miller
openaire   +2 more sources

Simple Stochastic Games and P-Matrix Generalized Linear Complementarity Problems

2005
We show that the problem of finding optimal strategies for both players in a simple stochastic game reduces to the generalized linear complementarity problem (GLCP) with a P-matrix, a well-studied problem whose hardness would imply NP = co–NP. This makes the rich GLCP theory and numerous existing algorithms available for simple stochastic games.
Bernd Gärtner, Leo Rüst
openaire   +1 more source

Coupled Channels and P-matrix approach to Baryon-Antibaryon Interactions

1987
Recent data [1,2] taken at LEAR on the reaction \(\overline {p\,} \,p \to \,\overline A A\) show some interesting features. The differential cross-section is highly anisotropic even close to threshold, suggesting the contribution of many partial waves to the reaction.
Timmers, P., Timmermans, R.G.E., Rijken, T.A., Swart, J.J. de   +3 more
openaire   +2 more sources