Results 81 to 90 of about 2,936,694 (340)

Effects of fluid flow rate and viscosity on gravel-pack plugging and the optimization of sand-control wells production

Petroleum Exploration and Development, 2019
Series of experiments were performed to simulate the invasion of formation sand into and the plugging process of gravel-pack at different viscosities and flowing rates of fluid. Two types of formation sands with the medium size of 0.10 mm and 0.16 mm and
Changyin DONG, Yugang ZHOU, Qiang CHEN, Chunming ZHU, Yanlong LI, Xiaobo LI, Yabin LIU   +6 more
doaj   +1 more source

Use of Betaine-Based Gel and Its Potential Application in Enhanced Oil Recovery

Gels, 2022
In this paper, a betaine-based gel containing 2.0% erucamide propyl betaine (EAPB), 0.5% oleic acid amide propyl betaine (OAPB), and 0.1% KCl was prepared for use as a fracturing fluid.
Yuman Wu, Jie Zhang, Sanbao Dong, Yongfei Li, Michal Slaný, Gang Chen   +5 more
doaj   +1 more source

Critical dynamics of an isothermal compressible non-ideal fluid

, 2012
A pure fluid at its critical point shows a dramatic slow-down in its dynamics, due to a divergence of the order-parameter susceptibility and the coefficient of heat transport.
A. Onuki, Fathollah Varnik, G. F. Mazenko, G. L. Gaines Jr., H. E. Stanley, J. K. Bhattacharjee, J. Lowengrub, J. P. Boon, J. V. Sengers, J.-P. Hansen, K. Kawasaki, L. D. Landau, Markus Gross, O. G. Mouritsen, P. Kopietz, P. M. Chaikin, S. P. Das, S.-K. Ma, U. Frisch   +18 more
core   +1 more source

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

The Effects of Fluid Viscosity on the Orifice Rotameter

, 2016
Due to the viscous shear stress, there is an obvious error between the real flow rate and the rotameter indication for measuring viscous fluid medium. At 50 cSt the maximum error of DN40 orifice rotameter is up to 35 %. The fluid viscosity effects on the
Weiting Jiang, Tao Zhang, Ying Xu, Huaxiang Wang, Xiaoli Guo, Jing-Xiang Lei, Peiyong Sang   +6 more
semanticscholar   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Swirling-annular-flow-induced instability of a micro shell considering Knudsen number and viscosity effects

Open Physics
This paper investigates the instability of the outer thin-walled micro shell subjected to the swirling flowing fluid, where flowing fluid passes through the annular space formed by both inner and outer shells. The inviscid fluid hydrodynamic pressure and
Ning Wenbo, Yang Wenjian, Wang Haoxian, Zhu Kan, Cai Yuhang, Yang Quanquan, Qi Qi   +6 more
doaj   +1 more source

Perturbation Solutions For Magnetohydrodynamics (Mhd) Flow of in a Non-Newtonian Fluid Between Concentric Cylinders

International Journal of Applied Mechanics and Engineering, 2019
The steady-state magnetohydrodynamics (MHD) flow of a third-grade fluid with a variable viscosity parameter between concentric cylinders (annular pipe) with heat transfer is examined.
M. Yürüsoy, Ö.F. Güler
doaj   +1 more source

CRISPR/Cas9‐Assisted Microrobots for Fast and Ultrasensitive “On‐The‐Fly” Next‐Generation DNA Detection

Advanced Functional Materials, EarlyView.
This work presents self‐propelled CRISPR/Cas9‐functionalized Au–MRs for rapid, amplification‐free, “on‐the‐fly” DNA detection. By harnessing motion‐assisted signal recovery, the platform achieved the limit of detection in low fM DNA concentrations, enabling detection across a wide dynamic range within only 5 min, which is significantly faster than any ...
Jyoti, Petr Michálek, Zbyněk Heger, Martin Pumera   +3 more
wiley   +1 more source

A Review of Weak Gel Fracturing Fluids for Deep Shale Gas Reservoirs

Gels
Low-viscosity slickwater fracturing fluids are a crucial technology for the commercial development of shallow shale gas. However, in deep shale gas formations with high pressure, a higher sand concentration is required to support fractures.
Shichu Yang, Weichu Yu, Mingwei Zhao, Fei Ding, Ying Zhang   +4 more
doaj   +1 more source