Zobrazeno 1 - 10
of 265
pro vyhledávání: '"Hendy S"'
Autor:
O'Neale, D. R. J., Hendy, S. C.
The total number of patents produced by a country (or the number of patents produced per capita) is often used as an indicator for innovation. Here we present evidence that the distribution of patents amongst applicants within many OECD countries is
Externí odkaz:
http://arxiv.org/abs/1204.6549
Autor:
Hendy, S. C., Lund, N. J.
Publikováno v:
Physical Review E 76 066313 (2007)
We study slip boundary conditions for simple fluids at surfaces with nanoscale chemical heterogeneities. Using a perturbative approach, we examine the flow of a Newtonian fluid far from a surface described by a heterogeneous Navier slip boundary cond
Externí odkaz:
http://arxiv.org/abs/0712.0047
Publikováno v:
Phys. Rev. B 76, 115437 (2007)
We conduct molecular dynamics simulations of the collision of atomic clusters with a weakly-attractive surface. We focus on an intermediate regime, between soft-landing and fragmentation, where the cluster undergoes deformation on impact but remains
Externí odkaz:
http://arxiv.org/abs/0709.0994
Autor:
Hendy, S. C.
Publikováno v:
Nanotechnology 18, 175703 (2007).
We construct a simple thermodynamic model to describe the melting of a supported metal nanoparticle with a spherically curved free surface both with and without surface melting. We use the model to investigate the results of recent molecular dynamics
Externí odkaz:
http://arxiv.org/abs/0704.0393
Publikováno v:
Phys Rev Lett 97 186103 (2006)
We simulate the collision of atomic clusters with a weakly attractive surface using molecular dynamics in a regime between soft-landing and fragmentation, where the cluster undergoes large deformation but remains intact. As a function of incident kin
Externí odkaz:
http://arxiv.org/abs/cond-mat/0608344
Autor:
Schebarchov, D., Hendy, S. C.
Publikováno v:
European Physical Journal D 43, 11-14 (2007)
We conduct molecular dynamics simulations of 887 and 1389-atom decahedral platinum nanoparticles using an embedded atom potential. By constructing microcanonical caloric curves, we identify structural transitions from decahedral to fcc in the particl
Externí odkaz:
http://arxiv.org/abs/cond-mat/0608345
Autor:
Schebarchov, D., Hendy, S. C.
Publikováno v:
Phys. Rev. Lett. 96, 256101 (2006)
We present a phenomenological model of melting in nanoparticles with facets that are only partially wet by their liquid phase. We show that in this model, as the solid nanoparticle seeks to avoid coexistence with the liquid, the microcanonical meltin
Externí odkaz:
http://arxiv.org/abs/cond-mat/0604607
Autor:
Schebarchov, D., Hendy, S. C.
Publikováno v:
Physical Review B 73, 121402(R), 2006
We use molecular dynamics with an embedded atom potential to study the behavior of palladium nanoclusters near the melting point in the microcanonical ensemble. We see transitions from both fcc and decahedral ground state structures to icosahedral st
Externí odkaz:
http://arxiv.org/abs/cond-mat/0601275
Autor:
Schebarchov, D., Hendy, S. C.
Publikováno v:
Phys. Rev. Lett. 95 116101 (2005)
We have used molecular dynamics simulations to construct a microcanonical caloric curve for a 1415-atom Ni icosahedron. Prior to melting the Ni cluster exhibits static solid-liquid phase coexistence. Initially a partial icosahedral structure coexists
Externí odkaz:
http://arxiv.org/abs/cond-mat/0504700
Publikováno v:
Phys. Rev. E 72, 016303 (2005)
We consider the flow of a Newtonian fluid in a nano or microchannel with walls that have patterned variations in slip length. We formulate a set of equations to describe the effects on an incompressible Newtonian flow of small variations in slip, and
Externí odkaz:
http://arxiv.org/abs/physics/0504126