Results 11 to 20 of about 4,757,335 (242)

Measurement of Rapid Protein Diffusion in the Cytoplasm by Photo-Converted Intensity Profile Expansion

open access: yesCell Reports, 2017
The fluorescence microscopy methods presently used to characterize protein motion in cells infer protein motion from indirect observables, rather than measuring protein motion directly.
Rotem Gura Sadovsky   +3 more
doaj   +1 more source

Understanding the Fundamentals of Microporosity Upgrading in Zeolites: Increasing Diffusion and Catalytic Performances

open access: yesAdvanced Science, 2021
Hierarchical zeolites are regarded as promising catalysts due to their well‐developed porosity, increased accessible surface area, and minimal diffusion constraints.
Zhengxing Qin   +14 more
doaj   +1 more source

The Hydrodynamic Dispersion Characteristics of Coral Sands

open access: yesJournal of Marine Science and Engineering, 2019
Dispersion characteristics are important factors affecting groundwater solute transport in porous media. In marine environments, solute dispersion leads to the formation of freshwater aquifers under islands.
Xiang Cui   +4 more
doaj   +1 more source

MECHANISMS OF THE FORMATION OF ASPHALT-RESIN AND PARAFFIN DEPOSITS AND FACTORS INFLUENCING THEIR INTENSITY

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2023
The relevance of the paper is caused by the need for more knowledge of the paraffin deposit formation on the inner surface of oilfield equipment. Research experience has shown inconsistent results, which indicates the absence of a generally accepted ...
Grigory Y. Korobov   +2 more
doaj   +1 more source

Diffusion of dilute gas in arrays of randomly distributed, vertically aligned, high-aspect-ratio cylinders

open access: yesBeilstein Journal of Nanotechnology, 2017
In this work we modelled the diffusive transport of a dilute gas along arrays of randomly distributed, vertically aligned nanocylinders (nanotubes or nanowires) as opposed to gas diffusion in long pores, which is described by the well-known Knudsen ...
Wojciech Szmyt, Carlos Guerra, Ivo Utke
doaj   +1 more source

Simulation Study of CO2 Huff-n-Puff in Tight Oil Reservoirs Considering Molecular Diffusion and Adsorption

open access: yesEnergies, 2019
CO2 injection has great potentials to improve the oil production for the fractured tight oil reservoirs. However, Current works mainly focus on its operation processes; full examination of CO2 molecular diffusion and adsorption was still limited in the ...
Yuan Zhang, Jinghong Hu, Qi Zhang
doaj   +1 more source

Investigation of Molecular Mean Free Path, Molecular Kinetic Energy, and Molecular Polarity Affecting Knudsen Diffusivity along Pore Channels

open access: yesSeparations, 2022
The effective purification of corrosive gases at the cathode air stream side is essential for proton exchange membrane fuel cells’ performance in real-world applications. Gas molecular diffusion depth along the pore channel is a sufficient parameter that
Bin Xu, Haotian Qin, Lu Chen
doaj   +1 more source

Research Based on the Selection of Regenerative Agents Based on Molecular Simulation New-Old Asphalt Diffusion Behavior [PDF]

open access: yesE3S Web of Conferences, 2023
In order to understand the new-old asphalt diffusion behavior, use the Materials Studio (MS) molecular dynamic simulation software to build a matrix asphalt and aging asphalt molecular model based on the average molecular model of the asphalt, and select
Yi Qigui, Ru Nan, Gu Jianyi
doaj   +1 more source

Molecular diffusion under confinement [PDF]

open access: yes, 2005
With reference to molecular transport in manifold media of porous structure, a survey is given on the ample spectrum of diffusion phenomena under confinement.
Kärger, Jörg
core   +1 more source

Wax Formation Mechanisms, Wax Chemical Inhibitors and Factors Affecting Chemical Inhibition

open access: yesApplied Sciences, 2020
When crude oil is extracted out of a subterranean reservoir at high temperature and pressure, it is usually transported via a pipeline, where the crude oil experiences radical changes in its physical and chemical properties, instigating numerous ...
Thevaruban Ragunathan   +2 more
doaj   +1 more source

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