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Gradient systems on coupled cell networks
(IOPBristol, 2015)
functions, that is, functions whose gradient is an admissible vector field. The schematic representation of a gradient network dynamical system is of an undirected cell graph, and we use tools from graph theory to deduce ...
Gradient-Based Cluster Space Navigation for Autonomous Surface Vessels
(Institute of Electrical and Electronics Engineers, 2014-01)
This paper presents an experimentally demonstrated gradient-based multirobot technique for adaptively navigating within a parameter field. To implement this technique, simultaneous measurements of the parameter are made ...
The ACS Fornax Cluster Survey. X. Color Gradients of Globular Cluster Systems in Early-type Galaxies
(2011)
We use the largest homogeneous sample of globular clusters (GCs), drawn from the ACSVCS and ACSFCS, to investigate the color gradients of GC systems in 76 early-type galaxies. We find that most GC systems possess an obvious ...
Longitudinal gradient coils with enhanced radial uniformity in restricted diameter: Single-current and multiple-current approaches
(Academic Press Inc Elsevier Science, 2017-03)
An important requirement for a gradient coil is that the uniformity of the generated magnetic field gradient should be maximal within the active volume of the coil. For a cylindrical geometry, the radial uniformity of the ...
Ab initio study of the EFG at the N sites in imidazole
(SPRINGER, 2008)
We study the nuclear quadrupole interaction at the nitrogen sites in the molecular and crystalline phases of the imidazole compound. We use PAW which is a state-of-the-art method to calculate the electronic structure and ...
Mid-latitude plasma and electric field measurements during space weather month, September 1999
(Elsevier, 2003-07)
Using data collected during the September 1999 combined ionospheric campaign (CIC), we examine the effects of moderate geomagnetic activity on low and mid-latitudes. Perturbations in the zonal electric field, measured at ...
Analytic evaluation of the gradient and Hessian of molecular potential energy functions
(Elsevier Science BvAmsterdamHolanda, 2007)
Longitudinal gradient-coil with improved uniformity within the volume of interest
(2014)
We present a longitudinal magnetic fieldgradient-coil with optimized uniformity within the volume ofinterest (VOI). The accuracy of the optimization algorithm wasconfronted with measurements of the spatial dependence of ...