Results 21 to 30 of about 134,406 (313)

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

Aggregate Structure in Heavy Crude Oil: Using a Dissipative Particle Dynamics Based Mesoscale Platform [PDF]

open access: yes, 2010
Heavy crude oil consists of thousands of compounds and much of them have a fairly large relative molar mass and complex structure. It is hard to learn the dynamic behavior of this fluid system at all atom models.
Xu, Jun-Bo   +10 more
core   +1 more source

A Review of Laboratory-Scale Research on Upgrading Heavy Oil in Supercritical Water [PDF]

open access: yes, 2015
With the growing demand for energy and the depletion of conventional crude oil, heavy oil in huge reserve has attracted extensive attention. However, heavy oil cannot be directly refined by existing processes unless they are upgraded due to its complex ...
Li, Ning   +5 more
core   +1 more source

Facile Synthesis of Well-Dispersed Ni2P on N-Doped Nanomesh Carbon Matrix as a High-Efficiency Electrocatalyst for Alkaline Hydrogen Evolution Reaction

open access: yesNanomaterials, 2019
The development of non-noble metal hydrogen evolution catalysts that can replace Pt is crucial for efficient hydrogen production. Herein, we develop a type of well-dispersed Ni2P on N-doped nanomesh carbon (NC) electrocatalyst by a facile pyrolysis ...
Fan Yang   +8 more
doaj   +1 more source

Efficient Fe based catalyst with nitrogen doped carbon material modification for propane non-oxidative dehydrogenation

open access: yesCarbon Resources Conversion, 2020
Nitrogen doped carbon species (NC) was introduced into Fe based catalyst and applied into propane non-oxidative dehydrogenation. With characterizations of XRD, TEM and XPS, it was deduced that the NC modification induces the electrons transferred from NC
Yuming Li   +7 more
doaj   +1 more source

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

open access: yesMolecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano   +6 more
wiley   +1 more source

Kinetics of cracking and coking of recycled heavy oil [PDF]

open access: yes, 1993
In recycled solids processes, shale oil undergoes secondary cracking/coking reactions on the surface of the recycle solids used as the heat carrier. Heavy oil recycle uses these secondary reactions to advantage to convert the heavy oil fraction produced ...
Dave, N.; Duffy, G. J.; Udaja, P.
core  

Pars Plana Vitrectomy and Heavy Silicon oil Tamponade for Inferior Retinal Detachment [PDF]

open access: yes, 2012
Pur po se: To evaluate the effectiveness and safety of pars plan vitrectomy and heavy silicone oil tamponade in eyes with inferior retinal detachment.
Burak Erden   +4 more
core   +1 more source

Quantification and optimization of platinum–molybdenum carbide interfacial sites to enhance low-temperature water-gas shift reaction

open access: yesNature Communications
Pt/α-MoC1-x catalysts exhibit exceptional activity in low-temperature water-gas shift reactions. However, quantitatively identifying and fine-tuning the active sites has remained a significant challenge.
Ruiying Li   +10 more
doaj   +1 more source

Enrichment of Hydrogen from a Hydrogen/Propylene Gas Mixture Using ZIF-8/Water-Glycol Slurry

open access: yesEnergies, 2018
In this work, zeolitic imidazolate framework-8 (ZIF-8), a subclass of metal organic frameworks (MOFs), was dispersed in a water-glycol solution to form a porous slurry.
Hai Li   +7 more
doaj   +1 more source

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