مرور Volume 26, Issue 3 بر اساس تاریخ انتشار
در حال نمایش موارد 1 - 10 از 10
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Nanoporous metal-organic framework Cu2(BDC)2(DABCO) as an efficient heterogeneous catalyst for one-pot facile synthesis of 1,2,3-triazole derivatives in ethanol: Evaluating antimicrobial activity of the novel derivatives
(Sharif University of Technology, 2019-06-01)Solvent-free ball-milling synthesized porous metal-organic framework Cu2(BDC)2(DABCO) (BDC: benzene-1,4-dicarboxylic acid, DABCO: 1,4-diazabicyclo[2.2.2]octane) proved to be a practical catalyst for facile and convenient ...
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The effects of bubble detachment shape on rising bubble hydrodynamics
(Sharif University of Technology, 2019-06-01)Local velocities and aspect ratios of rising bubbles were measured to investigate the effects of bubble detachment shape on rising bubble hydrodynamics. Two types of capillary were employed to generate bubbles of identical ...
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Microwave-assisted green synthesis of guar gum esters with enhanced physicochemical properties
(Sharif University of Technology, 2019-06-01)Several methods have been developed for the modification of natural polymers. Most of the reported methods are expensive since the chemical reactions are carried out using chemical additives along with stabilizers. Microwave ...
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Determining the Optimal Conditions for the Catalytic Hydrogenation of a Mixture of Tian Shan Coal and a Wide Fraction of Heavy Oil Residues with an End-Boiling Point of 300°C
(Sharif University of Technology, 2019-06-01)The shortage of natural resources in the power industry, combined with their increasing usage, price, and negative impact on the environment necessitate the search for new techniques of producing liquid fuel. One such ...
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A new model for predicting liquid holdup in two-phase Flow under high gas and liquid velocities
(Sharif University of Technology, 2019-06-01)Existing liquid holdup models are generally based on low gas and liquid velocities. In order to extend the applicable range of existing liquid holdup prediction models and improve its prediction accuracy, a of gas-liquid ...
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The application of non-Fourier and Fick's laws to the flow of temperature-dependent thermal conductivity generalized Newtonian liquids: A 3D computational study
(Sharif University of Technology, 2019-06-01)The current article presents a numerical study for local solutions of Sisko liquid flow by bidirectional stretched surface. Additionally, the analysis of relaxation times for the heat and mass transfer mechanisms are made ...
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Templated nanostructure silica membrane versus template-free one: Synthesis, characterization, and performance for hydrogen separation
(Sharif University of Technology, 2019-06-01)An experimental study was carried out on synthesis and performance of the MTES (methyltriethoxysilane) templated and template free nanostructure silica membranes for hydrogen separation. The permeance of hydrogen, carbon ...
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Synthesis and characterization of poly(styrene-block-acrylic acid)/Fe3O4 magnetic nanocomposite using reversible addition-fragmentation chain transfer polymerization
(Sharif University of Technology, 2019-06-01)A well-defined, amphiphilic poly(styrene-block-acrylic acid) (PSt-b-PAA) block copolymer to prepare a magnetic nanocomposite was synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization. The ...
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MCM-41-SO3H as an efficient reusable nano-ordered heterogeneous catalyst for the synthesis of divers 1- & 5-substituted 1H-tetrazoles
(Sharif University of Technology, 2019-06-01)An improved and efficient method for the synthesis of 1- & 5-substituted 1H-tetrazole derivatives has been described in the presence of nano-ordered MCM-41-SO3H as an effective heterogeneous catalyst. This metal-free ...
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A green procedure for one-pot synthesis of N,N0-alkylidene bisamides under solvent- and catalyst-free conditions
(Sharif University of Technology, 2019-06-01)An effective solvent- and catalyst-free method was introduced for synthesis of symmetrical N, N'-alkylidene bisamides as high usage compounds in organic chemistry. In order to show the generality, the synthesis was done ...
