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Local Electric Field Variation in the Field Emission Process

by A. S. C. Esperidiiio, N. B. De Oliveira, C. M. C. De Castilho
"... Abstract: Tunnelling probabilities in field emission processes are usually calculated assuming flat emitting surfaces. This corresponds to consider the electric field as a constant along the potential barrier. Previous work have shown the importance of taking into account image effects but neglectin ..."
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Abstract: Tunnelling probabilities in field emission processes are usually calculated assuming flat emitting surfaces. This corresponds to consider the electric field as a constant along the potential barrier. Previous work have shown the importance of taking into account image effects

LOCAL ELECTRIC FIELD MEASUREMENTS BY OPTICAL TWEEZERS

by G. Pesce, A B. Mandracchia, A E. Orabona, G. Rusciano, A L. De Stefano, A. Sasso A
"... ABSTRACT. We report a new technique to measure direction and amplitude of electric fields generated by microelectrodes embedded in polar liquid environment, as often used in microfluidic devices. The method is based on optical tweezers which act as sensitive force transducer while a trapped charged ..."
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ABSTRACT. We report a new technique to measure direction and amplitude of electric fields generated by microelectrodes embedded in polar liquid environment, as often used in microfluidic devices. The method is based on optical tweezers which act as sensitive force transducer while a trapped charged

On the Lorentz Local Electric Field in Soft-Matter Systems

by P. Tan, W. J. Tian, L. W. Zhou, J. P. Huang, P. Tan, W. J. Tian, L. W. Zhou, J. P. Huang
"... Additional resources and features associated with this article are available within the HTML version: • Supporting Information • Access to high resolution figures • Links to articles and content related to this article • Copyright permission to reproduce figures and/or text from this article ..."
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Additional resources and features associated with this article are available within the HTML version: • Supporting Information • Access to high resolution figures • Links to articles and content related to this article • Copyright permission to reproduce figures and/or text from this article

Imaging local electric fields produced upon synchrotron X-ray exposure

by C M D , J A N , S J T , M B , R F F , G J S M D Research; C , J A N , S J T , G J
"... Electron-hole separation following hard X-ray absorption during diffraction analysis of soft materials under cryogenic conditions produces substantial local electric fields visualizable by second harmonic generation (SHG) microscopy. Monte Carlo simulations of X-ray photoelectron trajectories sugge ..."
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Electron-hole separation following hard X-ray absorption during diffraction analysis of soft materials under cryogenic conditions produces substantial local electric fields visualizable by second harmonic generation (SHG) microscopy. Monte Carlo simulations of X-ray photoelectron trajectories

Permittivity and its temperature dependence in hexagonal structure BN dominated by the local electric field *

by Zhang Ting , Wu Meng-Qiang , Zhang Shu-Ren , Xiong Jie , Jin-Ming Wang , Zhang Da-Hai , He Feng-Mei , Li Zhong-Ping , 2012
"... This paper presents an analysis of the local electric field in hexagonal boron nitride (h-BN) by introducing a modified parameter. Based on the determination of the modified parameter of h-BN, the revised Lorenz equation is developed. Then the permittivity at high temperature and in the microwave f ..."
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This paper presents an analysis of the local electric field in hexagonal boron nitride (h-BN) by introducing a modified parameter. Based on the determination of the modified parameter of h-BN, the revised Lorenz equation is developed. Then the permittivity at high temperature and in the microwave

Macroscopic strings as heavy quarks in large N gauge theory and Anti-de Sitter supergravity

by Soo-jong Rey, Jung-tay Yee - PHYS. J. C22
"... Maldacena has put forward large N correspondence between superconformal field theories on the brane and anti-de Sitter supergravity in spacetime. We study some aspects of the correspondence between N = 4 superconformal gauge theory on D3-brane and maximal supergravity on adS5 × S5 by introducing mac ..."
Abstract - Cited by 508 (1 self) - Add to MetaCart
potential and again find agreements between the gauge theory and the supergravity results. By turning on Ramond-Ramond zero-form potential, we also study θ vacuum angle dependence of the static potential. We finally discuss dynamical realization of loop equation via turning on local electric field

Spectral analysis of cytochrome c: effect of heme conformation, axial ligand, peripheral substituents and local electric fields,

by Ivan Rasnik , Kim A Sharp , James A Fee , Jane M Vanderkooi - J. Phys. Chem. B , 2001
"... We present in this work low-temperature visible absorption spectra for recombinant Thermus thermophilus cytochrome c 552 . The Q-band presents a remarkable splitting at low temperature. We performed quantum chemical calculations to evaluate quantitatively the effect of heme conformation, axial liga ..."
Abstract - Cited by 1 (0 self) - Add to MetaCart
ligand, peripheral substituents and local electric fields on the electronic spectra. In an attempt to find correlation between protein structure and spectral splitting, we carried out the same calculations on three other cytochrome c's: horse heart, tuna heart, and yeast. The quantum chemical

Axiomatic quantum field theory in curved spacetime

by Stefan Hollands, Robert M. Wald , 2008
"... The usual formulations of quantum field theory in Minkowski spacetime make crucial use of features—such as Poincare invariance and the existence of a preferred vacuum state—that are very special to Minkowski spacetime. In order to generalize the formulation of quantum field theory to arbitrary globa ..."
Abstract - Cited by 689 (18 self) - Add to MetaCart
globally hyperbolic curved spacetimes, it is essential that the theory be formulated in an entirely local and covariant manner, without assuming the presence of a preferred state. We propose a new framework for quantum field theory, in which the existence of an Operator Product Expansion (OPE) is elevated

DiamondTouch: a multi-user touch technology

by Paul Dietz, Darren Leigh , 2003
"... A technique for creating touch sensitive surfaces is proposed which allows multiple, simultaneous users to interact in an intuitive fashion. Touch location information is determined independently for each user, allowing each touch on the common surface to be associated with a particular user. The su ..."
Abstract - Cited by 591 (8 self) - Add to MetaCart
. The surface gnerates location dependent electric fields, which are capacitively coupled through the users to receivers installed in the work environment. We describe the design of these sytems and their applications. Finally, we conclude with a description of the results we have obtained with a first

Pervasive Computing: Vision and Challenges

by M. Satyanarayanan - IEEE Personal Communications , 2001
"... This paper discusses the challenges in computer systems research posed by the emerging field of pervasive computing. It first examines the relationship of this new field to its predecessors: distributed systems and mobile computing. It then identifies four new research thrusts: effective use of smar ..."
Abstract - Cited by 686 (22 self) - Add to MetaCart
This paper discusses the challenges in computer systems research posed by the emerging field of pervasive computing. It first examines the relationship of this new field to its predecessors: distributed systems and mobile computing. It then identifies four new research thrusts: effective use
Results 1 - 10 of 68,481