Results 241 to 250 of about 1,472,154 (285)
Advanced Engineering Materials, EarlyView.Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente +3 more
wiley +1 more source
Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma
Advanced Engineering Materials, EarlyView.The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie +4 more
wiley +1 more source
Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures
Advanced Engineering Materials, EarlyView.This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley +1 more source
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The Hitchhiker’s Guide to Flow Chemistry
Chemical Reviews, 2017Flow chemistry involves the use of channels or tubing to conduct a reaction in a continuous stream rather than in a flask. Flow equipment provides chemists with unique control over reaction parameters enhancing reactivity or in some cases enabling new reactions.
Bartholomäus Pieber +2 more
exaly +4 more sources
Flow chemistry vs. flow analysis
Talanta, 2016The flow mode of conducting chemical syntheses facilitates chemical processes through the use of on-line analytical monitoring of occurring reactions, the application of solid-supported reagents to minimize downstream processing and computerized control systems to perform multi-step sequences.
openaire +2 more sources
Flow Chemistry for Cycloaddition Reactions
ChemSusChem, 2020AbstractAbstract: Continuous flow reactors form part of a rapidly growing research area that has changed the way synthetic chemistry is performed not only in academia but also at the industrial level. This Review highlights the most recent advances in cycloaddition reactions performed in flow systems.
Jorge, García-Lacuna +2 more
openaire +2 more sources
2019
Historically pharmaceutical and fine chemical products have been synthesised using batch methods, but increasingly chemists are looking towards flow chemistry as a greener and more efficient alternative. In flow chemistry reactions are performed in a reactor with the reactants pumped through it.
openaire +1 more source
Historically pharmaceutical and fine chemical products have been synthesised using batch methods, but increasingly chemists are looking towards flow chemistry as a greener and more efficient alternative. In flow chemistry reactions are performed in a reactor with the reactants pumped through it.
openaire +1 more source
Heumann Indole Flow Chemistry Process
The Journal of Organic Chemistry, 2019Continuous flow chemistry has improved efficiency in the Heumann indole process. 3-Substituted indoles were prepared by three flow steps performed in succession in better overall yield and shorter reaction times relative to their batch counterparts.
Cynthia Crifar +4 more
openaire +2 more sources
2017
Arturo Macchi of the University of Ottawa and Dominique M. Roberge of Lonza summarized (Org. Process Res. Dev. 2014, 18, 1286) a “toolbox approach” for the evolution from batch to continuous chemical synthesis. Michael D. Organ of York University developed (Org. Process Res. Dev.
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Arturo Macchi of the University of Ottawa and Dominique M. Roberge of Lonza summarized (Org. Process Res. Dev. 2014, 18, 1286) a “toolbox approach” for the evolution from batch to continuous chemical synthesis. Michael D. Organ of York University developed (Org. Process Res. Dev.
openaire +1 more source