Kinetics of diffusion mass transfer during filtration drying of grain materials
Еxperimental investigations concerning coefficient of moisture pore diffusion from grain during filtration drying. The coefficient of pore diffusion the model was used basing on the solution of differential equation under boundary conditions of the type.
Подобные документы
Main calculation of activation volumes for interstitials and vacancie. Diffusion equations for point defects. Surface generation and recombination of point defects. Simulation of stacking fault growth. Simulation of stress-nediated dopant diffusion.
статья, добавлен 29.04.2017Effect of the segregation of electrically active dopants. Diffusion theory of the hole current. Polysilicon emitter contacts and its dependence on dopant concentration. Hole mobility versus grain size for two values of the total dopant concentration.
статья, добавлен 29.04.20173-Bromo and 3-chloro-3-trifluoroacetyl-1-methyl-2-pyrrolidinones by the halogenation reaction of the corresponding 3-trifluoroacetyl derivatives. Characteristic hydrates after simple filtration on silica gel. The formation of new spirocyclic lactams.
статья, добавлен 14.02.2014Development of a thermal model describing the beam-metal, the features of the hyperbolic relaxation of the equation of heat transfer. Characterization of failure mechanisms for irradiated and non-irradiated sample, the changes in their structure and chemi
статья, добавлен 30.07.2016A procedure of a sol-gel method for synthesis of new polysiloxane xerogels with propionic and butyric acid-type groups. Structure of some carboxylic groups. Scrutiny specific surface areas of polysiloxane xerogels and average pore diameter of samples.
статья, добавлен 18.03.2014Obtaining an idea of the averaged molecular field characterizing the interaction of the sorbent molecule with the surface of the sorbent. Making an attempt to calculate the interaction energy in the case of sorption of non-polar adsorbent molecules.
статья, добавлен 24.09.2023Study of swelling kinetics as compared to solvents of various nature (water in various pH, ethanol, toluene) was carried out. IR comparative spectra were obtained for different composites. High anti-bacterial action of the synthesized nanocomposites.
статья, добавлен 30.07.2016Study vapor dynamics and growth of crystals in the solution of the two components chemically neutral - water and sucrose. The conditions under which crystals can be transformed into a solution. Conservation equations for interfacial interactions.
статья, добавлен 24.02.2016Composition features of the kinetics of enthalpy losses H(t), caused by physical aging in chalcogenide glasses, subject to the structural model of chain rearrangement. Mechanism of natural physical aging, specificity of structural-topological complexes.
статья, добавлен 29.09.2016Investigations of nanoporous carbon materials from organic raw materials of vegetable nature appropriate to be used as an electrode component in supercapacitors with an aqueous electrolyte. Familiarization with voltammograms of experimental samples.
статья, добавлен 30.07.2016Crystalline and electronic structures of nanoalumina alone and in different mixtures with nanosilica. X-ray diffraction and ultrasoft X-ray emission spectroscopy. Pore size distributions calculated. Resalts of the OKa emission bands of alumina in samples.
статья, добавлен 20.03.2016The dependence of spectral properties and interfragmental charge transfer on excitation, relaxation and excited state deactivation of 2-(3-coumaroyl)-benzopyrylium perchlorates. The positions of emission bands and rate constants of radiationless.
статья, добавлен 29.09.2016History of the free element. Isotopes, properties: physical, chemical. Potassium cations in the body. Biochemical function, membrane polarization. Filtration, excretion, potassium in the diet and by supplement. Applications: biological, food, industrial.
реферат, добавлен 13.11.2009The cycle of sanitary and chemical investigations of various artificial leathers and the polymer composition. The possibility of conducting direct stabilization of artificial leathers. The hygienic evaluation of polymers and polymer-containing materials.
статья, добавлен 29.01.2016Physical parameter models. Thermodynamic parameter models. Brief review of the relationship between the solution model and phase equilibria. The modified quasi chemical (MQC) model. Basic quasi chemical theory. The modified binary quasi-chemical theory.
статья, добавлен 10.04.2017- 16. Algorithm of optimal solution search for the control with model system of methanol synthesis column
The mechanism of development and implementation of the optimal synthesis search algorithm and analysis of gas costs. Features of control using the maintenance schedule. Technological process of methanol synthesis under conditions close to optimal.
статья, добавлен 14.01.2017 - 17. Quantum-dimensional effects in thermoelectric characteristics of lead chalcogenides nanostructures
Thermoelectric parameters of the thickness of the layer of nanostructures in the approximation of the variable of the Fermi energy. The Seebeck coefficient, electrical conductivity and their dependence on the pit width for nanofilms of lead chalcogenides.
статья, добавлен 24.02.2016 The study of ion-exchange sorption of CS+ and sr2+ on clinoptilolite in original, modified e- and G-irradiation, decationated with hydrochloric acid, and the cation-contained form, the definition of the coefficient of sorption and distribution of KD, KS.
статья, добавлен 02.04.2014Development of a method of mixing the hydroxides for the preparation of Lі[Ni0.5Co0.25Mn0.25]O2 from the respective products. Determination of average grain size, the measurement of impedance. Study of electrochemical properties using cyclic voltammetry.
статья, добавлен 21.12.2016- 20. Kinetics of liquid-phase hydrogenation of n-valeraldehyde to n-amyl alcohol over a Ru/Al2O3 catalyst
Schematic diagram of the experimental setup for hydrogenation. Effect of catalyst loading on initial rates of reaction. The use of gas chromatography for the analysis of the reaction. Langmuir–Hinshelwood-type models for single, dualsite mechanisms.
статья, добавлен 20.10.2014 Considers an opportunity and the effectiveness of using the solutions treated with low-temperature non-equilibrium contact plasma in order to intensify dissolution of metal gold in cyanide leaching solutions. Comparison of activation energies of the gold.
статья, добавлен 27.07.2016The absorption spectra of substances by vitamins solutions. The calculation of molar absorption coefficients. The spectrum of the triple multivitamin solution. Mass determination of B vitamins in polyvitamin. Spectrophotometric analysis of the components.
статья, добавлен 05.12.2018Analysis of the effect of resin in the carrier of the coating on its operational properties. Coating classification by type. Characteristics of the widely used resins for the manufacture of modern coatings: acrylics, alkyds, epoxy resins, polyesters.
статья, добавлен 10.03.2019Identification techniques of fluacizine by color reactions and thin layer chromatography. The results of chromatographic analysis of fluacizine for two systems of solvents. The fluacizine detection by UV-spectrophotometry in phosphate buffer solution.
статья, добавлен 25.03.2016Radical polymerization with a thiol-type chain transfer agent of poly-N-vinylpyrrolidone-based amphiphilic polymers, which can be used as drug carriers. Critical micelle concentration and its dependence on the molecular weight of the diblock copolymers.
статья, добавлен 18.04.2022