منابع مشابه
Tr Adjoint Imaging Method for Mitat
Most of the current imaging methods in microwave induced thermoacoustic tomography (MITAT) system assume that the heterogeneous sound velocity (SV) and density distribution are given or subject to Gaussian distribution. These situations generally are not satisfied. To improve multi-targets thermoacoustic sources imaging quality in a heterogeneous tissue, an iterative TR adjoint imaging method i...
متن کاملThe Extend Adjoint Method
One method to solve topology optimization problems is the topological derivative. This approach has some drawbacks: it is limited to simple problems, we do not know how to fill holes, ... To overcome these limitations, an extension of the adjoint method is presented. Named the numerical vault, it allows us to consider new fields of applications and to explore new theoretical investigations in t...
متن کاملAn adjoint method for channel localization.
Single cells learn by tuning their synaptic conductances and redistributing their excitable machinery. To reveal its learning rules, one must therefore know how the cell remaps its ion channels in response to physiological stimuli. We here develop an adjoint approach for discerning the non-uniform distribution of a given channel type from knowledge of the time course of membrane potential at tw...
متن کاملContinuous Adjoint Method for Unstructured Grids
Adjoint-based shape optimization methods have proven to be computationally efficient for aerodynamic problems. Themajority of the studies on adjoint methods have used structured grids to discretize the computational domain. Because of the potential advantages of unstructured grids for complex configurations, in this study we have developed and validated a continuous adjoint formulation for unst...
متن کاملAdjoint Formulations in Impedance Imaging
Most reconstruction algorithms in electrical impedance tomography (EIT, ERT and ECT) are known to suffer from the computational costs of calculating the Jacobian (also known as sensitivity matrix). In this paper we review and slightly modify the adjoint fields technique already widely used in electromagnetic imaging, diffuse optical and ultrasound tomography, which enables the reconstruction of...
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ژورنال
عنوان ژورنال: Progress In Electromagnetics Research B
سال: 2013
ISSN: 1937-6472
DOI: 10.2528/pierb12072411