-
23441
Kinetics of dimethyl sulfide (DMS) reactions with isoprene-derived Criegee intermediates studied with direct UV absorption
Published 2020-11-01“…<p>Criegee intermediates (CIs) are formed in the ozonolysis of unsaturated hydrocarbons and play a role in atmospheric chemistry as a non-photolytic OH source or a strong oxidant. …”
Get full text
Article -
23442
Low levels of nitryl chloride at ground level: nocturnal nitrogen oxides in the Lower Fraser Valley of British Columbia
Published 2018-05-01“…</p><p>At night, O<sub>3</sub> was rapidly and often completely removed by dry deposition and by titration with NO of anthropogenic origin and unsaturated biogenic hydrocarbons in a shallow nocturnal inversion surface layer. …”
Get full text
Article -
23443
Interactive effect of organic and mineral phosphorus on volatile compounds, morphology, and physiology of garlic (Allium sativum L.)
Published 2022-11-01“…The response of volatile sulfur containing compounds in garlic leaves (detected by GC–MS and HPLC analysis) indicated that in T7 enormously higher count of constituents in garlic leaves were determined which include aldehydes (3.254 µg/g), hydrocarbons(1.245 µg/g), esters (0.547 µg/g), acids (1.658 µg/g), sulfides (4.985 µg/g), ketones (1.254 µg/g), ethers (8.888 µg/g), alkaloids (0.357 µg/g), heterocyclic polymers (2.684 µg/g), cyclomethycaines (1.854 µg/g), polyolefins (0.214 µg/g), furfuryl and furan derivatives (0.987 µg/g), phenols (0.666 µg/g) and diterpenes(1.256 µg/g). …”
Get full text
Article -
23444
Química Sem Fronteiras: o desafio da energia
Published 2013-01-01“…Due to the complexity and cost of their production chain, "third generation" technologies usually aim at high value added biofuels such as biojet fuel, biohydrogen and hydrocarbons with a fuel performance similar to diesel or gasoline, situations in which the use of genetically modified organisms is usually required. …”
Get full text
Article -
23445
红外焙炒对菜籽油风味的影响机制Effect mechanism of infrared roasting on the flavor of rapeseed oil
Published 2022-01-01“…The results showed that the flavor of rapeseed oil from rapeseed roasted by infrared was significantly improved compared with that from the traditional roasted rapeseed, with a less oily taste and pungent irritating taste, and a relatively stronger roasted aroma, as well as less polycyclic aromatic hydrocarbons in terms of type and content. Heating the cold pressed rapeseed oil prepared by pressing rapeseed without any treatment for 3 h resulted in 3.86 times and 6.28 times increase of (E,E)-2-4-hepadienal and (E,E)-2-4-decadiena, respectively. …”
Get full text
Article -
23446
Scavenging ratios of polycyclic aromatic compounds in rain and snow in the Athabasca oil sands region
Published 2015-02-01“…Monitored PACs, including polycyclic aromatic hydrocarbons (PAHs), alkylated PAHs, and dibenzothiophenes (DBTs), in precipitation and in air at three near-source sites in the Fort MacKay and Fort McMurray area during January 2011 to May 2012, were used to generate a database of scavenging ratios (<i>W</i><sub>t</sub>) for PACs scavenged by both snow and rain. …”
Get full text
Article -
23447
The dead line for oil and gas and implication for fossil resource prediction
Published 2020-03-01“…Beyond the ASDL, source rocks no longer generate or expel hydrocarbons and become inactive. Therefore, the ASDL also sets the maximum depth for fossil fuel resources. …”
Get full text
Article -
23448
Molecular composition and photochemical lifetimes of brown carbon chromophores in biomass burning organic aerosol
Published 2020-01-01“…BrC chromophores were grouped into the following classes and subclasses: lignin-derived products, which include lignin pyrolysis products; distillation products, which include coumarins and flavonoids; nitroaromatics; and polycyclic aromatic hydrocarbons (PAHs). The observed classes and subclasses were common across most fuel types, although specific BrC chromophores varied based on plant type (gymnosperm or angiosperm) and ecosystem component(s) burned. …”
Get full text
Article -
23449
车厘子核油的制备及品质分析Preparation and quality analysis of cherry kernel oil
Published 2022-06-01“…There were 58 volatile components detected in the cherry kernel oil, and aldehydes(44.27%) and hydrocarbons(28.44%) were the main compounds.The cherry kernel oil had special fruit flavor.…”
Get full text
Article -
23450
ACOUSTIC INVESTIGATIONS OF THE DEEPEST METHANE SEEPS IN THE OKHOTSK SEA
Published 2021-10-01“…The emissions of which, due to the re-preservation of deposits of natural hydrocarbons (for example, arctic or oceanic gas hydrates), can acquire a large-scale character and cause irreversible climatic changes. …”
Get full text
Article -
23451
Andean Plants Essential Oils: A Scented Alternative to Synthetic Insecticides for the Control of Blowflies
Published 2021-10-01“…The <i>B. graveolens</i> EO was chiefly composed of monoterpene hydrocarbons, mostly represented by limonene (46.2%). …”
Get full text
Article -
23452
-
23453
Multiscale simulation of methane assisted fluidized bed biomass gasification
Published 2017Get full text
Thesis -
23454
-
23455
-
23456
Mechanistic insights into collision induced and catalytic activation of methane from first principles
Published 2016“…This novel bimolecular ‘coupling induced dissociation mechanism’ is demonstrated to convert methane molecules undergoing mechanical impact, directly to C2 hydrocarbons like ethane and ethylene. The impact induced vibrational excitation of the molecules allow successive transitions to lower potential energy states, leading to the concerted dissociation of C-H bonds of the molecules and coupling of the carbon atoms. …”
Get full text
Thesis -
23457
Analysis and monitoring of odour and semi-volatile organic compounds in different environmental matrices via gas chromatography-mass spectrometry
Published 2018“…Gas Chromatography Mass Spectrometry (GC-MS) combined with Thermal Desorption (TD) and solid phase extraction (SPE) methodologies were developed for the quantification and qualification of: •Polycyclic aromatic hydrocarbons (PAHs) and polychlorinated byphenyls (PCBs) bound on airborne particulate matter (PM) (different sizes of 10 and 2.5 μm). …”
Get full text
Thesis -
23458
Model analysis and catalysts study of CO2 methanation in fluidized bed reactor
Published 2019“…This thesis contains mainly three parts: Firstly, considering the catalytic reduction of CO2 by H2 can lead to the formation of various products: carbon, carbon monoxide, carboxylic acids, aldehydes, alcohols and hydrocarbons, a comprehensive thermodynamics analysis of CO2 hydrogenation is conducted using the Gibbs free energy minimization method. …”
Get full text
Get full text
Thesis -
23459
Electrochemical activation of small molecules by monolayer molybdenum disulphide
Published 2019“…Electrochemical system coupled with in-situ Fourier-transform infrared spectrometer (FTIR) shows that *CO intermediate formed on the Re and In doped 1T-<sup>S</sup>MoS<sub>2</sub> can be further reduced into hydrocarbons upon increasing the applied potential, suggesting that the reaction is potential dependent. …”
Thesis -
23460
Elemental Assessments Of South China Sea Marine Sediments Along The East Coast Of Peninsular Malaysia
Published 2010“…As most seas, the majority of pollution occurs in the South China Sea arise from the land namely waste that comes from large cities (sewage, industrial waste and hydrocarbons) and agricultural runoff (nutrients, pesticides and fertilizers). …”
Get full text
Thesis