Exploració per tema "Camps elèctrics"
Ara es mostren els items 41-51 de 51
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Total lightning detections of lightning flashes recorded by means of high-speed videos
(2011)
Text en actes de congrés
Accés restringit per decisió de l'autorA detailed analysis of two lightning flashes is presented. High speed video, total lightning detections and electric field measurements are the basis of the study. In general, the observed negative cloud-to-ground ... -
Transmissió de potencials d'acció basada en la propagació de camps elèctrics intra-membrana
(Universitat Politècnica de Catalunya, 2017-07-18)
Tesi
Accés obertCurrent theories and mechanisms of nerve impulse propagation inside neurons do not give a satisfactory explanation to the nanoscale processes that occur inside the membrane. Propagation at the dendritic zones, and at the ... -
Twist, tilt, and orientational order at the nematic to twist-bend nematic phase transition of 1 '',9 ''-bis(4-cyanobiphenyl-4 '-yl) nonane: A dielectric, H-2 NMR, and calorimetric study
(2015-12-02)
Article
Accés obertThe nature of the nematic-nematic phase transition in the liquid crystal dimer 1 '',9 ''-bis(4-cyanobiphenyl-4'-yl) nonane (CB9CB) has been investigated using techniques of calorimetry, dynamic dielectric response measurements, ... -
Two upward lightning at the Eagle Nest tower
(Institute of Electrical and Electronics Engineers (IEEE), 2012)
Text en actes de congrés
Accés restringit per política de l'editorialA new instrument composed by a high speed camera, two high energy detectors, a E-field antenna and a VHF antenna were installed at the Eagle Nest tower (northeast of Spain) during summer 2011. With this equipment several ... -
Versatile and accurate schemes of discretization for the electromagnetic scattering analysis of arbitrarily shaped piecewise homogeneous objects
(2018-12-01)
Article
Accés obertThe discretization by the method of moments (MoM) of integral equations in the electromagnetic scattering analysis most often relies on divergence-conforming basis functions, such as the Rao–Wilton–Glisson (RWG) set, which ... -
Versatile and accurate schemes of discretization in the scattering analysis of 2-D composite objects with penetrable or perfectly conducting regions
(2017-05-01)
Article
Accés obertThe method-of-moment discretization of boundary integral equations in the scattering analysis of closed infinitely long (2-D) objects, perfectly conducting (PEC) or penetrable, is traditionally carried out with continuous ... -
Volumetric testing for the nonconforming discretization of integral equations in scattering problems
(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Text en actes de congrés
Accés restringit per política de l'editorialThe traditional discretizations of the electric-field integral equation (EFIE) impose the continuity of the normal component current across the edges in the meshing. These edgeoriented schemes become awkward in the ... -
Volumetric testing parallel to the boundary surface for a nonconforming discretization of the electric-field integral equation
(2015-07)
Article
Accés obertThe volumetric monopolar-RWG discretization of the electric-field integral equation (EFIE) imposes no continuity constraint across edges in the surface discretization around a closed conductor. The current is expanded with ... -
Volumetric testing with wedges for a nonconforming discretization of the Electric-Field Integral Equation
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialThe discretization in Method of Moments (MoM) of the Electric-Field Integral Equation (EFIE) is traditionally carried out with divergence-conforming sets of basis functions, like the RWG set. This enforces the normal ... -
Work on electric field measurement applied to lightning predictive protection
(2002)
Comunicació de congrés
Accés restringit per decisió de l'autorElectrostatic field mill have been large employed by scientist for charge estimations, concentrations etc.. in not very much cases field mills are employed as a part of a protection system or as a warning system. One ... -
Zeroth-order divergence-complete discretizations of the EFIE at very low frequencies
(2009-07-20)
Text en actes de congrés
Accés obertWe present the Self-Loop basis functions, an edge-oriented divergence-conforming set with zero charge density. These basis functions allow a rearrangement of the Linear-linear basis functions set to overcome the ...