1. ATP sulphurylase from Saccharomyces cerevisiae was purified 140-fold by using heat treatment, DEAE-cellulose chromatography and Sepharose 6B gel filtration. 2. The enzyme was stable at -15 degrees C, optimum reaction velocity was between pH7.0 and 9.0, and the activation energy was 62kJ/mol (14.7kcal/mol). 3. The substrate was shown to be the MgATP(2-) complex, free ATP being inhibitory. 4. ...

This study focused the optimization of radiofrequency (RF) assisted heat pump (HP) drying Ganoderma lucidum. Response surface methodology (RSM) optimized levels three independent variables as air temperature, velocity, and RF power to obtain maximum value Polysaccharide content minimum time. Box–Behnken design (BBD) was employed evaluate effects velocity on time in The optimum predicted conditi...

| This paper is composed of two parts. The rst part surveys the literature regarding optimum nonlinear l-tering from the (continuous-time) stochastic analysis point of view, and the other part explores the impact of recent applications of neural networks (in a discrete-time context) to nonlinear ltering. In particular, the results obtained by using a regularized form of radial basis function (R...

The monochromatic absorption coefficient of silicon, inducing the depth penetration light into base solar cell, is used through back surface recombination velocity expressions, to determine optimum thickness necessary for production a large photocurrent. absorption-generation-diffusion and (bulk surface) phenomena are taken account in determining an n+ -p-p+ bifacial it manufacture process opti...

in this paper, the effect on the strength properties of high strength concrete (hsc) manufactured with silica fume (sf) and ground pumice (gp) is investigated. portland cement was replaced with sf, gp and combination of sf and gp up to 25%. 22 different concrete mixtures with these replacement ratios were produced by using 0.25 water-binder ratio. the ultrasound pulse velocity, compressive, spl...

Hydrogen-based direct reduced iron (HyDRI) produced by fluidized bed has great potential for achieving the target of net-zero carbon in steelmaking. However, when magnetite ores were used as feedstock, several process parameters showed influences on its fluidization and reduction behaviors. To confirm dominant influencing factors optimum condition, orthogonal experimental method was conducted p...