Now showing items 31-40 of 177
A micromachined 2D positioner with electrothermal actuation and sub-nanometer capacitive sensing
(IOP Publishing Ltd, 2003-03-01)
This paper reports on a multi-purpose two-axis micropositioner with sub-nanometer position sensing for precise feedback control. Along each axis it has an electrothermal actuator, a capacitive position sensor and a ...
Singularity image method for electrical impedance tomography of bubbly flows
(IOP Publishing Ltd, 2003-08-01)
A singularity image method is applied to the electrical impedance tomography of gas–liquid flows in a two-dimensional circular domain. Algorithms that use analytic complex functions, dipoles and the Milne-Thomson circle ...
The Weyl Quantization and the Quantum Group Quantization of the Moduli Space of Flat SU (2)-Connections on the Torus are the Same
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2003-02)
We prove that, for the moduli space of flat SU (2)-connections on the 2-dimensional torus, the Weyl quantization and the quantization performed using the quantum group of SL (2, C ) are the same. This is done by comparing ...
Intersubband absorption in annealed InAs/GaAs quantum dots: a case for polarization-sensitive infrared detection
(IOP Publishing Ltd, 2003-08-07)
We have studied the characteristics of intersubband absorption of polarized infrared (IR) radiation in as-grown and annealed self-organized InAs/GaAs quantum dots. It is observed that with the increase of annealing time ...
A new approach to calculating the memory kernel of the generalized quantum master equation for an arbitrary system–bath coupling
(The American Institute of Physics, 2003-12-15)
The Nakajima–Zwanzig generalized quantum master equation provides a general, and formally exact, prescription for simulating the reduced dynamics of a quantum system coupled to a quantum bath. In this equation, the memory ...
Evaluation of ( E )-2′-deoxy-2′-(fluoromethylene)cytidine on the 9L rat brain tumor model using MRI
(John Wiley & Sons, Ltd., 2003-04)
( E )-2′-deoxy-2′-(fluoromethylene)cytidine (FMdC), was evaluated as a potential treatment for malignant gliomas using the rat 9L brain tumor model. FMdC was shown to be an effective inhibitor of cell proliferation in ...
Optical interferometry in astronomy
(IOP Publishing Ltd, 2003-05-01)
Here I review the current state of the field of optical stellar interferometry, concentrating on ground-based work although a brief report of space interferometry missions is included. We pause both to reflect on decades ...
Understanding the Solar Sources of In Situ Observations
(The American Institute of Physics, 2003-09-02)
The solar wind can, to a good approximation be described as a two‐component flow with fast, tenuous, quiescent flow emanating from coronal holes, and slow, dense and variable flow associated with the boundary between open ...
Instanton Expansion of Noncommutative Gauge Theory in Two Dimensions
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2003-12)
We show that noncommutative gauge theory in two dimensions is an exactly solvable model. A cohomological formulation of gauge theory defined on the noncommutative torus is used to show that its quantum partition function ...
Assessment of a Hybrid Method for Hypersonic Flows
(The American Institute of Physics, 2003-05-05)
A preliminary hybrid particle‐continuum computational framework for simulating hypersonic interacting flows is proposed. The framework consists of the direct simulation Monte Carlo‐Information Preservation (DSMC‐IP) method ...