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Journals and Conferences
Yeast invertase was immobilized on polyethyleneimine-coated cotton thread by adsorption followed by crosslinking with glutaraldehyde. The thread-bound invertase was used as an easily retrievable system for the hydrolysis of 80% w/v commercial sucrose syrups. The immobilized enzyme was stable for over 90 days to a temperature of 50 degrees C, only when… (More)
Saccharomyces fragilis cells (40% w/v) were immobilized in 2% Ca-alginate and were used in a batch process for the removal of lactose from milk by fermentation. Immobilized cells (10 g) could completely desugarate 100 mL of milk in 3.5 h. The immobilized preparation was used repeatedly in 15 batches without decrease in the activity.
Washed and dried rice husk was coated with 2% polyethylenimine (PEI). Invertase was immobilized on this support through adsorption followed by cross-linking with 2% glutaraldehyde. Immobilized enzyme was reused for the hydrolysis of sucrose without loss in activity. This approach may serve as a simple technique in the future for the covalent immobilization… (More)
The original image corrupted by Gaussian noise is a long established problem in signal or image processing .This noise is removed by using wavelet thresholding by focused on statistical modelling of wavelet coefficients and the optimal choice of thresholds called as image denoising . For the first part, threshold is driven in a Bayesian technique to use… (More)
Adaptive filtering techniques are used in a wide range of applications. Adaptive noise canceller is one of the most interesting applications for adaptive filters, especially for the Least Mean Square (LMS) algorithm, due to its strength and calculus simplicity. Noise problems in signals have gained huge attention due to the need of noise-free output signal… (More)
A stable immobilized preparation of fumarase (EC 22.214.171.124) was obtained by entrapment of rat liver mitochondria in acrylamide polymerized by using gamma irradiation (100 kR). The enhanced stability and the efficiency of the entrapped enzyme have shown potential for repeated use for the production of L-malic acid from fumaric acid. The possible formation of… (More)
Baker's yeast cells (40% w/v) were immobilized in 2% Ca-alginate and were used in a batch process for the removal of glucose from egg melange by fermentation. Immobilized cells (10 g) could completely remove the glucose from 135 ml melange in 60 min. The immobilized preparation was repeatedly used in 30 batches without decrease in the activity.
Beam forming system helps in quality communication by increasing the signal to noise ratio (SNR). The purpose of this system is to recover the source signal from the interference. This paper explains the concept and algorithms of beam forming based on review of relevant literature. Conventional methods as well as advanced algorithms regarding acoustic beam… (More)