Results 51 to 60 of about 112,603 (200)

抗静电丁腈橡胶的研究

open access: yesJixie chuandong, 2013
Antistatic nitrile rubber are prepared by adding different kinds of antistatic agent(acetylene carbon black and SN) and different content of antistatic agent.The properties of antistatic,vulcanization characteristics,mechanical properties of the ...
马楠楠   +5 more
doaj  

First Stereoselective Total Synthesis of Ciryneol C

open access: yesSynOpen, 2019
The acetylene derivative Ciryneol C was isolated from the roots of C. japonicum. The asymmetric total synthesis of Ciryneol C was achieved in seven steps, with Horner–Wittig olefination, regioselective epoxide opening, and Cadiot–Chodkiewicz coupling ...
Ambati Sharada   +3 more
doaj   +1 more source

A Density Functional Theory and Microkinetic Study of Acetylene Partial Oxidation on the Perfect and Defective Cu2O (111) Surface Models

open access: yesMolecules, 2022
The catalytic removal of C2H2 by Cu2O was studied by investigating the adsorption and partial oxidation mechanism of C2H2 on both perfect (stoichiometric) and CuCUS-defective Cu2O (111) surface models using density functional theory calculations.
Ling-Nan Wu, Zhen-Yu Tian, Wu Qin
doaj   +1 more source

A resonant photoacoustic spectroscopy sensor for ppb-level detection of acetylene employing a 1.53 μm laser diode

open access: yesFrontiers in Physics
A compact and highly sensitive photoacoustic spectroscopy (PAS) sensor for dissolved acetylene (C2H2) detection was developed for transformer fault diagnosis applications.
Lei Peng   +5 more
doaj   +1 more source

Substituent Effects on the Stability of Thallium and Phosphorus Triple Bonds: A Density Functional Study

open access: yesMolecules, 2017
Three computational methods (M06-2X/Def2-TZVP, B3PW91/Def2-TZVP and B3LYP/LANL2DZ+dp) were used to study the effect of substitution on the potential energy surfaces of RTl≡PR (R = F, OH, H, CH3, SiH3, SiMe(SitBu3)2, SiiPrDis2, Tbt (=C6H2-2,4,6-(CH(SiMe3 ...
Jia-Syun Lu   +2 more
doaj   +1 more source

Nitrogen fixation sensitivity related to water use efficiency at reproductive development in soybean

open access: yesPlant, Soil and Environment, 2020
Soybean [Glycine max (L.) Merr.] nitrogen fixation is sensitive differentially to drought among different genotypes at different growth and development stages, which directly affects soybean yield. Acetylene reduction activity (ARA) response to a gradual
Yan Jiang   +3 more
doaj   +1 more source

Nitrogenase activity associated with codium species from New Zealand marine habitats [PDF]

open access: yes, 1978
Nitrogenase activity, measured as acetylene reduction, was recorded at rates up to 1028 nmol.h \g * dry weight for Codium adhaerens (Cabr.) Ag. var. convolutum Dellow and Codium fragile (Sur.) Hariot subsp.
_____   +8 more
core   +2 more sources

Effect of Coal Grain Size on Sorption Capacity with Respect to Propylene and Acetylene

open access: yesEnergies, 2017
Propylene and acetylene are released to mine air with the increase in the temperature of self-heating coal. Concentrations of these gases in mine air are applied as indicators of the progress of the self-heating process.
Agnieszka Dudzińska   +2 more
doaj   +1 more source

Mechanism of Semi-Hydrogenation of Trace Acetylene in Ethylene by [MB12Hx]2-

open access: yesTaiyuan Ligong Daxue xuebao
[Purposes] The main problem of semi-hydrogenation of trace acetylene in ethylene is excessive hydrogenation. High concentration of ethylene is the main cause of excessive hydrogenation, so it is important to design a catalyst with acetylene enrichment ...
CHEN Kangjie   +4 more
doaj   +1 more source

acetylenes

open access: yes, 2014
Citation: 'acetylenes' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00066 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

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