Results 11 to 20 of about 2,084,774 (316)

Electrochemical synthesis of Ni doped carbon quantum dots for simultaneous fluorometric determination of Fe3+ and Cu2+ ion facilely

open access: yesGreen Chemical Engineering, 2023
A novel Ni doped carbon quantum dots (Ni-CQDs) fluorescence probe was synthesized by facile electrolysis of monoatomic Ni dispersed porous carbon (Ni–N–C).
Siyuan Sun   +6 more
doaj   +1 more source

The Recycling of Waste Per-Fluorinated Sulfonic Acid for Reformulation and Membrane Application in Iron-Chromium Redox Flow Batteries

open access: yesEnergies, 2022
Iron–chromium redox flow batteries (ICRFB) possess the advantage of low raw material cost, intrinsic safety, long charge–discharge cycle life, good life-cycle economy, and environmental friendliness, which has attracted attention from academia and ...
Quan Xu   +8 more
doaj   +1 more source

Effects of the addition of coal tar pitch-based mesocarbon microbeads on the preparation of mesophase pitch [PDF]

open access: yesE3S Web of Conferences, 2021
Mesophase pitch was prepared by co-carbonization of the hydrocracking tail oil (HCTO) and coal tar pitch-based mesocarbon microbeads (MCMB). The effects of the addition amount of coal tar-based MCMBs on the C/H atomic ratio, softening point, carbon ...
Gong Xin, Liu Xiaodong, Liu Dong
doaj   +1 more source

Preparation of Polyamidoamine Dendrimer Modified Magnetic Nanoparticles and Its Application for Reliable Measurement of Sudan Red Contaminants in Natural Waters at Parts-Per-Billion Levels

open access: yesFrontiers in Chemistry, 2021
The health threat from Sudan red dyes has been the subject of much attention in recent years and is crucial to design and establish reliable measurement technologies.
Yalin Wu   +12 more
doaj   +1 more source

Ethylene Separation via Hydrate Formation in W/O Emulsions

open access: yesEnergies, 2015
An hybrid absorption-hydration method was adopted to recover C2H4 from C2H4/CH4 binary gas mixtures and the hydrate formation conditions of C2H4/CH4 mixtures was studied experimentally in diesel in water (w/o) emulsions. Span 20 at a concentration of 1.0
Yong Pan   +8 more
doaj   +1 more source

Heavy Silicone Oil and Intraocular Inflammation [PDF]

open access: yesBioMed Research International, 2014
In the past two decades, many advances have been made in vitrectomy instrumentation, surgical techniques, and the use of different tamponade agents. These agents serve close retinal breaks, confine eventual retinal redetachment, and prevent proliferative vitreoretinopathy (PVR). Long-acting gases and silicone oil are effective internal tamponade agents;
Francesco Morescalchi   +7 more
openaire   +5 more sources

Optimization of Molecular Composition Distribution of Slurry Oil by Supercritical Fluid Extraction to Improve the Structure and Performance of Mesophase Pitch

open access: yesEnergies, 2022
The composition distribution of slurry oil has a significant impact on the structure and performance of the mesophase. In this study, supercritical fluid extraction oil (SFEO) and extraction components were extracted from two slurry oils (SLOs) using the
Xiaoyu Dai   +5 more
doaj   +1 more source

The Acoustic Properties of Sandy and Clayey Hydrate-Bearing Sediments

open access: yesEnergies, 2019
Natural gas hydrates samples are rare and difficult to store and transport at in situ pressure and temperature conditions, resulting in difficulty to characterize natural hydrate-bearing sediments and to identify hydrate accumulation position and ...
Xiao-Hui Wang   +6 more
doaj   +1 more source

Calming height requirements for oil shale particles

open access: yes, 2022
Technical memorandum no. 67-34.The primary object of the Anvil Points Oil Shale Research Center Technical memorandum is to advise authorized personnel employed by the Participating Parties (1) that various activities are in progress or that certain ...

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Basic flow characteristics of raw and spent oil shale

open access: yes, 2022
Technical memorandum no. 65-4.Includes charts, technical drawings.These technical memoranda pertain to work performed at Anvil Points.The United States Bureau of Mines facility at Anvil Points, near Rifle, Colorado, was reactivated starting in May 1964 ...

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