Results 1 to 10 of about 692,964 (317)

Geochemical evidence for the internal migration of gas condensate in a major unconventional tight petroleum system

open access: yesScientific Reports, 2022
Unconventional petroleum systems go through multiple episodes of internal hydrocarbon migration in response to evolving temperature and pressure conditions during burial and uplift.
James M. Wood   +4 more
doaj   +1 more source

Online real time determination of free formaldehyde content during polymerization process of phenolic resin by NIR spectra and a modeling-free method

open access: yesPolymer Testing, 2021
Real time detection of free formaldehyde content during synthesis process of phenolic resins is of great significance for controlling the quality of resin products.
Xiuye Lian   +6 more
doaj   +1 more source

Pomegranate-Like Structured Si@SiOx Composites With High-Capacity for Lithium-Ion Batteries

open access: yesFrontiers in Chemistry, 2020
Silicon anodes with an extremely high theoretical specific capacity of 4,200 mAh g−1 have been considered as one of the most promising anode materials for next-generation lithium-ion batteries.
Jianbin Li   +8 more
doaj   +1 more source

One-Step Densification of Carbon/Carbon Composites Impregnated with Pyrolysis Fuel Oil-Derived Mesophase Binder Pitches

open access: yesC, 2020
Carbon/carbon (C/C) composites are conventionally manufactured by liquid-phase impregnation (LPI), in which the binder pitches and phenolic resins are impregnated into the composites, and by chemical vapor infiltration (CVI).
Jae-Yeon Yang   +4 more
doaj   +1 more source

Mechanisms of the epitaxial growth of two-dimensional polycrystals

open access: yesnpj Computational Materials, 2022
In the epitaxial growth of two-dimensional (2D) materials on substrates, 2D polycrystals with various shapes have been broadly observed, but their formation mechanisms are still highly elusive. Here we present a complete study on the formation mechanisms
Jichen Dong, Yunqi Liu, Feng Ding
doaj   +1 more source

Determining Inorganic and Organic Carbon [PDF]

open access: yes, 2017
Carbon is the element which makes up the major fraction of lipids and carbohydrates, which could be used for making biofuel. It is therefore important to provide enough carbon and also follow the flow into particulate organic carbon and potential loss to dissolved organic forms of carbon.
Jaana, Koistinen   +2 more
openaire   +2 more sources

THE DETERMINATION OF ORGANIC CARBON IN SOILS. [PDF]

open access: yesJournal of the American Chemical Society, 1904
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Pettit, J. H., Schaur, I. O.
openaire   +2 more sources

Hybrid Passivated Red Organic LEDs with Prolonged Operation and Storage Lifetime

open access: yesMolecules, 2022
In addition to mobile and TV displays, there is a trend of organic LEDs being applied in niche markets, such as microdisplays, automobile taillights, and photobiomodulation therapy. These applications mostly do not require to be flexible in form but need
Dan-Dan Feng   +5 more
doaj   +1 more source

Long-term bare-fallow soil fractions reveal thermo-chemical properties controlling soil organic carbon dynamics [PDF]

open access: yesBiogeosciences, 2021
Evolution of organic carbon content in soils has the potential to be a major driver of atmospheric greenhouse gas concentrations over the next century.
M. Chassé   +10 more
doaj   +1 more source

The dual effects of non-solvent on the sol-gel transition of polyacrylonitrile solution: The promotion in thermodynamics and hindrance in kinetics

open access: yesPolymer Testing, 2022
The effects of non-solvent on the sol-gel transition of polyacrylonitrile (PAN) solution were investigated in thermodynamics and kinetics by the means of rheology method.
Lujie Huo, Weiyu Cao
doaj   +1 more source

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