Concept

Point particle

Related publications (154)

Interaction of a point charge with the surface of a uniaxial dielectric

We analyze the force on a point charge moving at relativistic speeds parallel to the surface of a uniaxial dielectric. Two cases are examined: a lossless dielectric with no dispersion and a dielectric with a plasma-type response. The treatment focuses on t ...

Epl Association, European Physical Society2013

Size-Effect of Pd-(Poly(N-vinyl-2-pyrrolidone)) Nanocatalysts on Selective Hydrogenation of Alkynols with Different Alkyl Chains

Lioubov Kiwi, Fernando Cardenas Lizana, Artur Yarulin

We have studied the effect of unsupported Pd nanoparticle (NP) size in the selective C C semi-hydrogenation of alkynols with different alkyl chains, i.e., C-16 in dehydroisophytol (DIP) (to isophytol (IP)) vs C-1 in 2-methyl-3-butyn-2-ol (MBY) (to 2-methyl ...

Amer Chemical Soc2013

A Common Core Model for Junctionless Nanowires and Symmetric Double Gate FETs

Jean-Michel Sallese, Farzan Jazaeri, Lucian Barbut, Christophe Lallement

In this brief, we evidence the link between planar and cylindrical junctionless FETs from the electrostatics point of view. In particular, we show that an approximate solution of the Poisson-Boltzmann equation for junctionless nanowires can be mapped on th ...

Institute of Electrical and Electronics Engineers2013

3-D PSF fitting for fluorescence microscopy: implementation and localization application

Michaël Unser, Daniel Sage, François Aguet, Hagay Kirshner

Localization microscopy relies on computationally efficient Gaussian approximations of the point spread function for the calculation of fluorophore positions. Theoretical predictions show that under specific experimental conditions, localization accuracy i ...

Wiley-Blackwell2013

Can a Metal Surface Repel Electric Charges?

Primoz Rebernik Ribic

We show that the interaction between a surface and a charge packet moving parallel to it can become repulsive above a critical relativistic energy. We find that this is true for a lossless dielectric surface and also for a Drude metallic surface-in apparen ...

American Physical Society2012

Drifting snow threshold measurements near McMurdo station, Antarctica: A sensor comparison study

Katherine Colby Leonard

We present the results of an Antarctic spring field study of snow drift threshold measurements made using two custom drift sensors and a commercial parts-counting device. All three sensor types worked well at detecting drifting snow events, but the sensors ...

Elsevier2012

A MLS-based lattice spring model for simulating elasticity of materials

Jiannong Fang, Jian Zhao, Gaofeng Zhao

A MLS-based lattice spring model is presented for numerical modeling of elasticity of materials. In the model, shear springs between particles are introduced in addition to normal springs. However, the unknowns contain only particle displacements but no pa ...

World Scientific Publ Co Pte Ltd2012

Piezoresistive effect in epoxy–graphite composites

Peter Ryser, Thomas Maeder

In this work, we investigate the piezoresistive response of epoxy–graphite composites. A resistive thick-film Wheatstone bridge is deposited by screen-printing onto a beam, a weight is then applied on the tip of the beam and the resulting electrical signal ...

Elsevier2012

Synthesis and Biological Response of Size-Specific, Monodisperse Drug–Silica Nanoconjugates

Li Tang

Drug-containing nanoparticles (NPs) with monodisperse, controlled particle sizes are highly desirable for drug delivery. Accumulating evidence suggests that NPs with sizes less than 50 nm demonstrate superior performance in vitro and in vivo. However, it i ...

American Chemical Society2012

Experimental observation of thermal fluctuations in single superconducting Pb nanoparticles through tunneling measurements

Klaus Kern

An important question in the physics of superconducting nanostructures is the role of thermal fluctuations (TFs) on superconductivity in the zero-dimensional limit. Here, we probe the evolution of superconductivity as a function of temperature and particle ...

2011

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