Numerical absorbing boundary conditions for the wave equation
We develop a theory of difference approximations to absorbing boundary conditions for the scalar wave equation in several space dimensions. This generalizes the work of the auth...
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184 publications
Conduction in non-crystalline systems
Abstract A summary is given of what is now known about the existence of localized states for electrons in three-dimensional disordered systems, and what can be conjectured about...
Atomic force microscopy and surface-enhanced Raman spectroscopy. I. Ag island films and Ag film over polymer nanosphere surfaces supported on glass
The surface roughness and nanometer scale structure of Ag films used for surface-enhanced Raman scattering (SERS) are characterized using atomic force microscopy (AFM). Two impo...
Gene expression profiling of alveolar rhabdomyosarcoma with cDNA microarrays.
Several forms of human sarcoma, lymphoma, and leukemia are characterized by somatically acquired chromosome translocations that result in fusion genes that encode chimeric trans...
Ambient Occlusion and Edge Cueing for Enhancing Real Time Molecular Visualization
The paper presents a set of combined techniques to enhance the real-time visualization of simple or complex molecules (up to order of 106 atoms) space fill mode. The proposed ap...
Recovery of the Power Spectrum of Mass Fluctuations from Observations of the Lyα Forest
We present a method to recover the shape and amplitude of the power spectrum of mass fluctuations, P(k), from observations of the high-redshift Lyα forest. The method is motivat...
Polarizable Force Field for Peptides and Proteins Based on the Classical Drude Oscillator
Presented is a polarizable force field based on a classical Drude oscillator framework, currently implemented in the programs CHARMM and NAMD, for modeling and molecular dynamic...
The processing of hexagonally sampled two-dimensional signals
Two-dimensional signals are normally processed as rectangularly sampled arrays; i.e., they are periodically sampled in each of two orthogonal independent variables. Another form...
Optically Active Lattice Vibrations as Treated by the GF-Matrix Method
A general description has been given of an application of the Wilson's GF-matrix method to the treatment of optically active lattice vibrations. As examples, formulas are derive...
Local Maxima and the Expected Euler Characteristic of Excursion Sets of <i>χ <sup>2</sup>, F</i> and <i>t</i> Fields
The maximum of a Gaussian random field was used by Worsley et al. (1992) to test for activation at an unknown point in positron emission tomography images of blood flow in the h...
Room-temperature superfluidity in graphene bilayers
Because graphene is an atomically two-dimensional gapless semiconductor with nearly identical conduction and valence bands, graphene-based bilayers are attractive candidates for...
Simple and Globally Convergent Methods for Accelerating the Convergence of Any EM Algorithm
Abstract. The expectation‐maximization (EM) algorithm is a popular approach for obtaining maximum likelihood estimates in incomplete data problems because of its simplicity and ...