The carbonation/calcination reaction cycle of a limestone sorbent was used in novel greenhouse calcium looping process to provide the heat and CO2 requirement greenhouses. unique conditions this (low temperature low partial pressure) led determination kinetic parameters range 400 800 oC pressures 0.04 0.16% (400 1600 ppm) which were carried out experimentally via thermo-gravimetric analyzer (TGA). Various gas-solid mechanisms considered determine best mechanism for carbonation reaction....

Surface roughness and cutting forces are considered as important factors to determine machinability rate the quality of product.A number like speed, feed rate, depth tool noise radius influence surface in turning process.In this paper, an Artificial Neural Network (ANN) model was used forecast with related inputs, including cut radius.The machined force parameters input outputs ANN model.In work, 24 samples experimental data were train network.Moreover, eight other tests implemented test...

Bioconversion of glucose to gluconic acid with oxidase as enzyme was considered occur in a bubble column reactor at 40 °C, atmospheric pressure, and pH 5.5 while oxygen gas velocity varied the homogeneous transition regime range 0.0014–0.0112 m s–1. It found that superficial has positive effect on holdup, mean size, volumetric mass transfer coefficient, concentration negative influence these hydrodynamic parameters. The modeling by considering complete size distribution governing equations...

Low-temperature plasma ion mobility spectrometry (LTP-IMS) is the method to identify some materials by measuring concentration of gas phase ions. IMS used in a wide range laboratory-based biomedical research studies. A nanosecond pulse generator necessary for LTP-IMS apparatus enable direct analysis various chemical compounds without having evaporate analyte or seek solvent any reagent. In this paper, dual Marx pulsed Ionization power supply proposed based on new combination solid-state...

Total imperviousness (residential and non-residential) increases with population growth in many regions around the world. Population density has been used to predict total large areas, although size was only closely related residential imperviousness. In this study, together land use data for 154 suburbs Southeast Queensland (SEQ) of Australia were develop a new model estimation. extracted through linear spectral mixing analysis (LSMA) using Landsat 8 OLI/TIRS, then separated into...

The greenhouse calcium looping process (GCL) is based on the cyclic carbonation/calcination reaction of limestone under mild operating conditions, for example, temperatures 600 to 800 °C and CO2 partial pressures 400 1600 ppm (0.04–0.16%). GCL can provide required heat enrichment greenhouses with particles instead fossil fuels such as natural gas. In this research, calcination was studied in a thermogravimetric analyzer (TGA) determine its kinetic parameters. experimental results showed that...

Cell-based biosensors have become a research hotspot in the and bioelectronics fields. The main feature of cell-based is immobilization living cells on surface transducers. Different types o... | Find, read cite all you need Tech Science Press

This paper propose a method to 3D models categorization based on geometric features from face and vertex of any model using probabilistic neural network. For classification, we use histogram two variables, i.e., the angle between normal vector object surface point that connect shape origin point; distance origin. Also, for better separability different models, Euclidean pairs points is used. The most advantage present it leads reduce feature dimension consequently computational cost in...

Leaf Area Index is a vegetation characteristic which affects water cycle in watersheds by intercepting water. Hence, we decided to simulate LAI with high spatial resolution for different land covers Kasilian watershed located Iran from 2004 2013. For this purpose, the gridded BIOME-BGC was developed 500 m includes 319 grids within domain. In study, The particle swarm optimization (PSO) algorithm applied find combination of 3 parameters including maximum stomatal conductance (Gs_max), new...

Oxidation of glucose by homogeneous oxidase was performed in rectangular bubble column reactor at 40?C, ambient pressure and pH 5.5 while superficial gas (oxygen) velocity varied the transition regime range 0.0014 - 0.0112 m s-1. Effect on apparent reaction rate its parameters determined it observed that basis volume liquid increased with increasing velocity. The assumed to be form Michaelis-Menten equation kinetic were evaluated nonlinear regression method.

Abstract The carbonation/calcination reaction cycle of a limestone sorbent was studied experimentally by using thermogravimetric analyzer for unique conditions, such as low temperature (400 to 500 °C) and CO 2 partial pressure (0.05 0.1 %), pertinent novel greenhouse calcium looping process. kinetic parameters were obtained compared with those reported in the literature. Various gas–solid mechanisms considered determine best mechanism carbonation reaction. diffusion function, or G ( x )= ,...

A number of factors, e.g.cutting speed and feed rate, affect the surface roughness in machining process.In this paper, an Artificial Neural Network model was used to forecast with related inputs, including cutting rate.The output ANN input parameters machined parameters.In research, twelve samples experimental data were train network.Moreover, four other tests implemented test network.The study concludes that a reliable accurate method for predicting CNC turning operation Particulate...

In this paper, we provide an effective new 3D models' retrieval system based on Poisson equation. Usually, models have considered in two major kinds: directly space and indirectly by a set of 2D views that extracted from model. Compared with the obtained results different kind these kinds methods, try to design our special select using Kmeans clustering method uses geometric features each silhouette result most discriminating views. This will be great helpful improve any model performance....