Results 1 to 10 of about 82,277 (194)

One-pot formation of 2,4-di- or 2,4,6-tri-olefinic monocarboxylic acids by straight chain C4-extension [PDF]

open access: yesHeliyon, 2017
We report a one-pot formation of 2,4-diolefinic or 2,4,6-triolefinic monocarboxylic acids, R-(CHCH)2or3-COOH, by decarboxylative condensation of an optionally α,β-unsaturated aldehyde with glutaconic acid, HOOC-CH2-CHCH-COOH as straight chain C4 ...
Jessica Sobotta   +5 more
doaj   +2 more sources

Conclusion on the peer review of the pesticide risk assessment of the active substance Straight Chain Lepidopteran Pheromones [PDF]

open access: yesEFSA Journal, 2014
The conclusions of the European Food Safety Authority (EFSA) following the peer review of the initial risk assessments carried out by the competent authority of the rapporteur Member State Austria, for the pesticide active substance Straight Chain ...
European Food Safety Authority
doaj   +2 more sources

Exhaled Aldehydes as Biomarkers for Lung Diseases: A Narrative Review

open access: yesMolecules, 2022
Breath analysis provides great potential as a fast and non-invasive diagnostic tool for several diseases. Straight-chain aliphatic aldehydes were repeatedly detected in the breath of patients suffering from lung diseases using a variety of methods, such ...
Maximilian Alexander Floss   +5 more
doaj   +1 more source

One-pot reaction-separation process to produce jet fuel

open access: yesEnergy Conversion and Management: X, 2022
The world production of chemicals and fuels is predominantly based on the conversion of nonrenewable raw materials, such as coal, natural gas, and oil. Nowadays, there are increasing ways to produce fuels from biomass, such as producing fuel alcohol from
Shaoqu Xie   +3 more
doaj   +1 more source

Damage analysis and lifetime prediction of round-link chain of mine-used scraper conveyor

open access: yesGong-kuang zidonghua, 2017
A three-dimensional model of round-link chain of scraper conveyor was established by 3D software CATIA, contact-impact process of round-link chain was simulated and analyzed by finite element analysis software ANSYS. The analysis results show that stress
ZHANG Ke   +3 more
doaj   +1 more source

Experimental Study on Hydrodynamic Characteristics of Barge-Type Breakwaters under Different Mooring Methods

open access: yesJournal of Marine Science and Engineering, 2023
In this paper, a yacht project in Tingjiang Town, Mawei, Fujian, is suggested as an example of a barge type breakwater made out of scrap barges. The physical modelling of a two-dimensional flume wave test was carried out on a barge-type breakwater ...
Xiaofei Cheng, Shimin Li, Gang Wang
doaj   +1 more source

Crack initiation characteristics of ring chain of heavy-duty scraper conveyor under time-varying loads

open access: yesAdvances in Mechanical Engineering, 2019
Crack initiation characteristics of ring chain of heavy-duty scraper conveyor under time-varying loads were investigated in this study. The dynamic tension of ring chain of the heavy-duty scraper conveyor was obtained using the time-varying dynamic ...
Dagang Wang   +4 more
doaj   +1 more source

Biosynthesis, regulation, and engineering of microbially produced branched biofuels

open access: yesBiotechnology for Biofuels, 2019
The steadily increasing demand on transportation fuels calls for renewable fuel replacements. This has attracted a growing amount of research to develop advanced biofuels that have similar physical, chemical, and combustion properties with petroleum ...
Wenqin Bai   +3 more
doaj   +1 more source

Novel Mesoporous Silica Materials with Hierarchically Ordered Nanochannel: Synthesis with the Assistance of Straight-Chain Alkanes and Application

open access: yesJournal of Chemistry, 2016
The straight-chain alkane-assisted synthesis of hierarchical mesoporous silica materials (MSM) results in variable mesostructures and morphologies due to remarkably different self-assembly routes of template agent from those without the assistance of ...
Haidong Zhang, Xiaohong Li
doaj   +1 more source

Extraction and Characterization of Glycosaminoglycans from Marine Snail Rapana venosa

open access: yesProceedings, 2019
Glycosaminoglycans (GAGs) are anionic straight chain polysaccharides with a wide range ...
Catalina SANDA   +5 more
doaj   +1 more source

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