Gregory Brown

Simulated Dynamics of Underpotential Deposition of Cu with Sulfate on Au(111) (2008)

Gregory Brown, Per Arne Rikvold, M. A. Novotny, Andrzej Wieckowski

Numerical studies of lattice-gas models are well suited to describe multi-adsorbate systems. One example is the underpotential deposition of Cu on Au(111) in the presence of sulfuric acid....

Leibniz's Theodicy and the Confluence of Worldly Goods (2008)

Brown, Gregory.

Journal of the History of Philosophy - Volume 26, Number 4, October 1988

Vera Entia : The Nature of Mathematical Objects in Descartes (2008)

Brown, Gregory.

Journal of the History of Philosophy - Volume 18, Number 1, January 1980

Fine-grid Simulations of Thermally Activated (2007)

Switching In Nanoscale, Per Arne Rikvold, Gregory Brown, M. A. Novotny

Numerical integration of the Landau-Lifshitz-Gilbert equation with thermal fluctuations is used to study the dynamic response of single-domain nanomagnets to rapid changes in the applied magnetic...

Performance Evaluation of RDMA over IP: A Case Study with the Ammasso Gigabit Ethernet NIC (2005)

K. Panda, Hyun-wook Jin, Hyun-wook Jin, Sundeep Narravula, Sundeep Narravula, ...

Remote Direct Memory Access (RDMA) has been proposed to overcome the limitations of traditional send/receive based communication protocols. The immense potential of RDMA to improve the communication...

Performance Evaluation of RDMA over IP: A Case Study with the Ammasso Gigabit Ethernet NIC (2005)

Hyun-wook Jin, Sundeep Narravula, Gregory Brown, Karthikeyan Vaidyanathan, Pavan Balaji, Dhabaleswar K. Panda

Remote Direct Memory Access (RDMA) has been proposed to overcome the limitations of traditional send/receive based communication protocols like sockets. The immense potential of RDMA to improve the...

Performance Evaluation of RDMA over IP: A Case Study with the Ammasso Gigabit Ethernet NIC (2005)

Hyun-wook Jin, Sundeep Narravula, Gregory Brown, Karthikeyan Vaidyanathan, Pavan Balaji, Dhabaleswar K. Panda

Remote Direct Memory Access (RDMA) has been proposed to overcome the limitations of traditional send/receive based communication protocols like sockets. The immense potential of RDMA to improve the...

Leibniz's Endgame and the Ladies of the Courts (2004)

Brown, Gregory.

Journal of the History of Ideas - Volume 65, Number 1, January 2004

Vandalism: Environmental and Social Factors (2003)

Brown, Gregory.

Journal of College Student Development - Volume 44, Number 4, July/August 2003

Determining the Saddle Point in Micromagnetic Models of Magnetization Switching (2002)

Brown, Gregory, Novotny, M. A., Rikvold, Per Arne

A numerical model of single-domain nanoscale iron magnets fabricated using scanning-microscope-assisted chemical vapor deposition is simulated using finite-temperature micromagnetics. A...

Dynamics of Magnetization Reversal in Models of Magnetic Nanoparticles and Ultrathin Films (2001)

Rikvold, Per Arne, Brown, Gregory, Mitchell, Steven J., Novotny, M. A.

We discuss numerical and theoretical results for models of magnetization switching in nanoparticles and ultrathin films. The models and computational methods include kinetic Ising and classical...

Numerical Confirmation of Late-time t^{1/2} Growth in Three-dimensional Phase Ordering (2001)

Brown, Gregory, Rikvold, Per Arne

Results for the late-time regime of phase ordering in three dimensions are reported, based on numerical integration of the time-dependent Ginzburg-Landau equation with nonconserved order parameter at...

Thermal and Dynamic Effects in Langevin Simulation of Hysteresis in Nanoscale Pillars (2001)

Brown, Gregory, Novotny, M. A., Rikvold, P. A.

Dynamic quantities related to hysteresis have been measured in micromagnetic simulations of single-domain nanoscale magnets at nonzero temperature. The hysteresis-loop area and magnetization-field...

Langevin Simulation of Thermally Activated Magnetization Reversal in Nanoscale Pillars (2001)

Brown, Gregory, Novotny, M. A., Rikvold, Per Arne

Numerical solutions of the Landau-Lifshitz-Gilbert micromagnetic model incorporating thermal fluctuations and dipole-dipole interactions (calculated by the Fast Multipole Method) are presented for...

Thermal Magnetization Reversal in Arrays of Nanoparticles (2000)

Brown, Gregory, Novotny, M. A., Rikvold, Per Arne

The results of large-scale simulations investigating the dynamics of magnetization reversal in arrays of single-domain nanomagnets after a rapid reversal of the applied field at nonzero temperature...

Micromagnetic simulations of thermally activated magnetization reversal of nanoscale magnets (1999)

Brown, Gregory, Novotny, M. A., Rikvold, Per Arne

Numerical integration of a stochastic Landau-Lifshitz-Gilbert equation is used to study dynamic processes in single-domain nanoscale magnets at nonzero temperatures. Special attention is given to...

Evolution of speckle during spinodal decomposition (1999)

Brown, Gregory, Rikvold, Per Arne, Sutton, Mark, Grant, Martin

Time-dependent properties of the speckled intensity patterns created by scattering coherent radiation from materials undergoing spinodal decomposition are investigated by numerical integration of the...

Monte Carlo Methods for Equilibrium and Nonequilibrium Problems in Interfacial Electrochemistry (1999)

Gregory Brown, Per Arne Rikvold, S. J. Mitchell, M. A. Novotny

We present a tutorial discussion of Monte Carlo methods for equilibrium and nonequilibrium problems in interfacial electrochemistry. The discussion is illustrated with results from simulations of...

Simulated Dynamics of Underpotential Deposition of Cu with . . . (1999)

Sulfate On Au, Gregory Brown, Andrzej Wieckowski

this article we report current transients and time-dependent microscopic adlayer structures observed in dynamic Monte Carlo simulations of a model UPD system under conditions intended to reproduce...

The Effects of Total Sleep Deprivation and Recovery Sleep on Cognitive Performance and Brain Function (1998)

Gillin, J. C., Drummond, Sean P., Brown, Gregory

An ever-increasing number of military personnel and civilians alike must work daily without adequate sleep. Although considerable data show sleep deprivation alters many aspects of behavior, little...

Universality and Scaling for the Structure Factor in Dynamic Order-Disorder Transitions (1998)

Brown, Gregory, Rikvold, Per Arne, Grant, Martin

The universal form for the average scattering intensity from systems undergoing order-disorder transitions is found by numerical integration of the Langevin dynamics. The result is nearly identical...

Monte Carlo Methods for Equilibrium and Nonequilibrium Problems in Interfacial Electrochemistry (1998)

Brown, Gregory, Rikvold, Per Arne, Mitchell, S. J., Novotny, M. A.

We present a tutorial discussion of Monte Carlo methods for equilibrium and nonequilibrium problems in interfacial electrochemistry. The discussion is illustrated with results from simulations of...

Review of Collecting the Natural World: Legal Requirements and Personal Liability for Collecting Plants, Animals, Rocks, Minerals and Fossils by Donald Wolberg and Patsy Reinard (1998)

Brown, Gregory

Collecting the Natural World is, in the authors' words, an attempt to "provide a practical guideline to the maze of regulations and possible liabilities which confront the collector" of natural...

Simulated Dynamics of Underpotential Deposition of Cu with Sulfate on Au(111) (1997)

Brown, Gregory, Rikvold, Per Arne, Novotny, M. A., Wieckowski, Andrzej

Numerical studies of lattice-gas models are well suited to describe multi-adsorbate systems. One example is the underpotential deposition of Cu on Au(111) in the presence of sulfuric acid....

Speckle from phase ordering systems (1997)

Brown, Gregory, Rikvold, Per Arne, Sutton, Mark, Grant, Martin

The statistical properties of coherent radiation scattered from phase-ordering materials are studied in detail using large-scale computer simulations and analytic arguments. Specifically, we consider...

Equilibrium and nonequilibrium applications of lattice-gas models in electrochemistry (1997)

Rikvold, Per Arne, Brown, Gregory, Novotny, M. A., Wieckowski, Andrzej

We discuss applications of statistical-mechanical lattice-gas models to study static and dynamic aspects of electrochemical adsorption. The strategy developed to describe specific systems includes...

Numerical simulations of scattering speckle from phase ordering systems (1996)

Brown, Gregory, Rikvold, Per Arne, Grant, Martin

The scattering of coherent X-rays from dynamically evolving systems is currently becoming experimentally feasible. The scattered beam produces a pattern of bright and dark speckles, which fluctuate...

Dynamics of Magnetization Reversal in Models of Magnetic Nanoparticles and Ultrathin Films

Per Arne Rikvold, Gregory Brown, Steven J. Mitchell, M. A. Novotny

We discuss numerical and theoretical results for models of magnetization switching in nanoparticles and ultrathin films. The models and computational methods include kinetic Ising and classical...

Why Do Foreign Firms Have Less Idiosyncratic Risk than U.S. Firms?

Söhnke M. Bartram, Gregory Brown, René M. Stulz

Using a large panel of firms across the world from 1991-2006, we show that the median foreign firm has lower idiosyncratic risk than a comparable U.S. firm. Country characteristics help explain...

Why Do Foreign Firms Have Less Idiosyncratic Risk Than U.S. Firms?

Bartram, Sohnke M., Brown, Gregory, Stulz, Rene M.

Using a large panel of firms across the world from 1991-2006, we show that the median foreign firm has lower idiosyncratic risk than a comparable U.S. firm. Country characteristics help explain...