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An efficient one-pot three-component synthesis of tetrahydrobenzo[b]pyran and 3,4-dihydropyrano[c]chromene derivatives using starch solution as catalyst
Tetrahydrobenzo[b]pyran Dihydropyrano[c]chromene Starch solution
2014/3/8
Tetrahydrobenzo[b]pyran and 3,4-dihydropyrano[c]chromene derivatives were synthesized via a one-pot three-component condensation of aromatic aldehydes with malononitrile and dimedone or 4-hydroxycouma...
Kinetics of Oxidation of L-Leucine by Mono- and Bimetallic Gold and Silver Nanoparticles in Hydrogen Peroxide Solution（图）
gold nanoparticle silver nanoparticle gold/silver bimetallic nanoparticle oxidation of α-amino acid leucine hydrogen peroxide kinetic study
2013/10/5
The catalytic activity of surfactant stabilized mono- and bimetallic Au and Ag nanoparticles for the oxidation of an amino acid, L-leucine, was studied using hydrogen peroxide as the oxidant. The Au a...
Polysulfide Poisoning of Ag Electrocatalyst during L-Ascorbate Ion Electro-oxidation in Alkaline Solution（图）
L-ascorbic acid polysulfide electrode poisoning silver electro-oxidation
2013/10/9
L-Ascorbate anion electro-oxidation on a silver electrode in hydroxide solution in the absence and presence of sodium polysulfide of concentrations from 1 × 10–5 to 4.5 × 10–4 mol/L was studied using ...
Removal of methyl red from aqueous solution by activated carbon prepared from the Annona squmosa seed by adsorption
Annona squmosa Adsorption Wastewater
2010/9/14
The use of low-cost, locally available, highly efficiencient and eco-friendly adsorbents has been investigated as an ideal alternative to the current expensive methods of removing dyes from wastewater...
Electrocatalytic Activity of Ti/TiO2 Electrodes in H2SO4 Solution
voltammetric charge active surface TiO2 electrode
2009/11/16
Ti/TiO2 electrodes were prepared with the polymeric precursor method (PPM). The structure and morphology of Ti/TiO2 electrodes were examined with XRD and ESEM. The voltammetric charge (q*) of Ti/TiO2 ...
Micellization, Interaction and Microenvironment in the Mixed Solution of Pluronics and Surfynol 104 with Nuclear Magnetic Resonance
pluronic triblock copolymer micellization microenvironment
2009/11/16
The micellization, intermolecular interaction and microenvironment of molecular segments in the mixed aqueous solution of PEO-PPO-PEO triblock copolymer (Pluronic? F88, P84 and P123) and Surfynol? 104...
Recovery of Copper from Leaching Solution of Copper Smelting Ash
recovery copper copper smelting ash N902
2009/11/13
An efficient and reliable approach based on solvent extraction to selectively recover copper from leaching solution of Jinchuan copper smelting ash has been developed in this work. And the extraction ...
Catalytic Oxidation of Phenol in Aqueous Solution
Catalytic Oxidation Phenol Destruction Heterogeneous Reaction
2009/10/15
The oxidation of phenol in aqueous solution over a supported copper oxide, zinc oxide catalyst was studied at atmospheric pressure. The reaction involved an introduction period and a steady-state-acti...
ANALYTIC SOLUTION OF HEAT AND MASS TRANSFER OVER A PERMEABLE STRETCHING PLATE AFFECTED BY CHEMICAL REACTION, INTERNAL HEATING, DUFOUR-SORET EFFECT AND HALL EFFECT
heat and mass transfer chemical reaction Soret-Dufore effect
2009/10/14
The analytical solution is derived for the steady MHD mixed convection, laminar, heat and mass transfer over an isothermal, inclined permeable stretching sheet, immersed in a uniform porous medium in ...
INCORRECT INVERSE PROBLEM SOLUTION METHOD FOR PARAMETER IDENTIFICATION OF TRANSPORT PROCESSES MODELS
model parameter identification incorrect inverse problems iterative method
2009/10/13
A method for model parameter identification on the bases of minimization of the least square function has been proposed. An iterative regularization procedure and a numerical algorithm have been devel...
Numerical Solution of Grad-Shafranov Equation for the Distribution of Magnetic Flux in Nuclear Fusion Devices
Grad-Shafranov equation BEM FEM DQM
2009/9/30
The magnetohydrodynamic equilibrium in an axisymmetric plasma is described by the Grad-Shafranov (GS) equation in terms of the magnetic flux. Boundary element method (BEM) is suitable for plasma equil...
Preparation of Rice Based ORS by Solution Method
Diarrhoea Rice-based ORS Absorption Solution method
2010/9/14
A new method has been established to make rice based ORS through absorption of salts in rice by soaking the rice in the solution of salts. The soaked rice was dried, fried, powdered and packaged. The ...
Removal of Methylene blue from aqueous solution by bioadsorption onto Ricinus Ricinus communis epicarp Activated Carbon
Epicarp Ricinus communis Adsorption Methylene blue Kinetics
2010/9/14
Carbon prepared from the epicarp of Ricinus communis was used to remove a textile dye (methylene blue (MB)) from an aqueous solution by adsorption technique under varying conditions of agitation time,...
Electrochemical measurement of flow parameters in dilute solution
electrochemical measurement ionic migration
2009/4/22
Electrochemical measurement of flow parameters in dilute solution.
Numerical solution of viscous flow past a solid sphere with the control volume formulation
sphere laminar flow numerical simulation
2009/3/26
Numerical solution of viscous flow past a solid sphere with the control volume formulation.