Proceedings of the conference transducers for sonar applications

8.70SIGLELD:f81/2970. / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Local government noise problems and construction industry noise

SIGLEAvailable from British Library Lending Division - LD:85/20537(Local) / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Reproducing Kernels for the Irreducible Components of Polynomial Spaces on Unions of Grassmannians

The decomposition of polynomial spaces on unions of Grassmannians Gk1,d∪…∪Gkr,d into irreducible orthogonally invariant subspaces and their reproducing kernels are investigated. We also generalize the concepts of cubature points and t-designs from single Grassmannians to unions. We derive their characterization as minimizers of a suitable energy potential to enable t-design constructions by numerical optimization. We also present new analytic families of t-designs for t=1,2,3.© The Author(s) 201

Stability and accuracy of finite element methods for flow acoustics I : one dimensional acoustic propagation

Includes bibliographical referencesSIGLEAvailable from British Library Document Supply Centre- DSC:8715. 888(no 301) / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Stability and accuracy of finite element methods for flow acoustics II : two dimensional propagation

Includes bibliographical referencesSIGLEAvailable from British Library Document Supply Centre- DSC:8715. 888(no 302) / BLDSC - British Library Document Supply CentreGBUnited Kingdo

From Low- to High-Dimensional Moments Without Magic

We aim to compute the first few moments of a high-dimensional random vector from the first few moments of a number of its low-dimensional projections. To this end, we identify algebraic conditions on the set of low-dimensional projectors that yield explicit reconstruction formulas. We also provide a computational framework, with which suitable projectors can be derived by solving an optimization problem. Finally, we show that randomized projections permit approximate recovery.© The Author(s) 201

Computer programs for the discrete wavenumber finite/boundary element model for ground vibration and noise from railway tunnels

Includes bibliographical referencesAvailable from British Library Document Supply Centre- DSC:9118. 013(no 915) / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo