We point out the connection between the cell discretization algorithm and the primal hybrid finite-element method. There is a very close relationship between these two non-conforming methods. In particular, an important result between Lagrange multipliers and normal derivatives obtains in both cases
The relation of low frequency restoration methods to the gerchberg-papoulis algorithm
β Scribed by Hong Yan; Jintong Mao
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 342 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0740-3194
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
In magnetic resonance imaging, low frequency components can be allowed to saturate the analog to digital converter to reduce the quantization noise. These components can be estimated using least squares error estimation based low frequency restoration methods or the iterative GerchbergβPapoulis algorithm. In this paper, we show the relationship between the closed form estimation methods and the iterative algorithm, propose a method for improving the speed of iteration, and discuss the advantages and disadvantages of two types Of methods. Β© 1990 Academic Press, Inc.
π SIMILAR VOLUMES
Rabbit tibialis anterior muscles were stimulated continuously at 2.5 Hz, 5 Hz, or 10 Hz for 10 months. The resulting adaptive transformation was dose-related for contractile speed, myosin isoform composition, and enzyme activities. The ''fast-oxidative'' state produced by stimulation at 2.5 Hz was s
A new social network method shows that young children vary in their abilities to interact with multiple peer groups and to maintain group interactions over time. Learning how to competently sustain group interactions is an important developmental task for preschoolers and is associated with enhanced