Results 61 to 70 of about 1,422,419 (283)

Numerical Simulation of Performance Analysis and Parameter Optimization for a High-Gas-Fraction Twin-Screw Multiphase Pump

Modelling
A twin-screw multiphase pump is essential equipment for the transfer of gas-liquid multiphase mixtures in oil and gas operations. This work addresses rotor deformation in real applications by correcting the rotor profile using the arc transition approach,
Wenkui Xi, Luyu Chen, Wei Tian, Xiongxiong Wang, Shuqin Xiao, Yanbin Li   +5 more
doaj   +1 more source

Elegant design of carbon nanotube foams with double continuous structure for metamaterials in a broad frequency range

, 2020
Carbon nanotube (CNT) foams with negative permittivity and permeability are successfully prepared by chemical vapor deposition (CVD) and post-treatment.
Cardon, Ludwig, D'hooge, Dagmar, Jiao, Zhenmin, Qiu, Jun   +3 more
core   +1 more source

Dapagliflozin prevents methylglyoxal‐induced retinal cell death in ARPE‐19 cells

FEBS Open Bio, EarlyView.
Diabetic macular oedema is a diabetes complication of the eye, which may lead to permanent blindness. ARPE‐19 are human retinal cells used to study retinal diseases and potential therapeutics. Methylglyoxal is a compound increased in uncontrolled diabetes due to elevated blood glucose.
Naina Trivedi, Zainab Quraishi, Shima Khezri Azizi Far, Madaleine Ward, Aidan Conway, Reem Abdulredha, Eman Mshari, Yousif A. Shamsaldeen   +7 more
wiley   +1 more source

Effectiveness of cellulose polyanionic-based polymers on the measurement of rheological properties of water-based drilling fluids in high-pressure high-temperature fractured shale reservoirs

Applied Water Science, 2022
High-pressure, high-temperature fractured shale reservoirs are types of unconventional reservoirs that need proper drilling operations for adequate efficiency.
Zhikun Liu, Chaoqun Zhang, Qi Li, Afshin Davarpanah, Ahmed Sayed M. Metwally   +4 more
doaj   +1 more source

Geometrically-tuned channel permeability

, 2015
We characterize the motion of charged as well as neutral tracers, in an electrolyte embedded in a varying section channel. We exploit a set of systematic approximations that allows us to simplify the problem, yet capturing the essential of the interplay ...
Malgaretti, Paolo, Pagonabarraga, Ignacio, Rubi, J. Miguel   +2 more
core   +1 more source

Electromagnetic tunneling through a single-negative slab paired with a double-positive bi-layer [PDF]

, 2011
We show that resonant tunneling of electromagnetic fields can occur through a three-layer structure composed of a single-negative (i.e., either negative-permittivity or negative-permeability) slab paired with bi-layer made of double-positive (i.e ...
Andrea Alù, Giuseppe Castaldi, Ilaria Gallina, M. Born, Nader Engheta, Vincenzo Galdi   +5 more
core   +3 more sources

Intercompartmental communication in senescence

FEBS Open Bio, EarlyView.
Senescent cells experience structural changes in the plasma membrane, endoplasmic reticulum, mitochondria, lysosomes, nucleus, and cytoskeleton. These alterations disrupt crosstalk among cellular compartments, impairing vesicular trafficking, contact sites, and molecular flow.
Krystyna Mazan‐Mamczarz, Eleanor J. Wind, Jixiang Leng, Myriam Gorospe   +3 more
wiley   +1 more source

Evaluation of a permeability-porosity relationship in a low permeability creeping material using a single transient test [PDF]

, 2009
A method is presented for the evaluation of the permeability-porosity relationship in a low-permeability porous material using the results of a single transient test. This method accounts for both elastic and non-elastic deformations of the sample during
Ai, Berge, Berge, Bernabé, Bernabé, Bernabé, Bernabé, Berryman, Biot, Brace, Breysse, Brown, Coussy, David, Detournay, Escoffier, Ghabezloo, Ghabezloo, Ghabezloo, Ghabezloo, Grasley, Hart, Hart, Jean Sulem, Jérémie Saint-Marc, Meziani, Rice, Scherer, Scherer, Scherer, Scherer, Siavash Ghabezloo, Sulem, Taylor, Vardoulakis, Walder, Wang, Zhu, Zimmerman, Zimmerman   +39 more
core   +5 more sources

Long‐term hippocampal alterations and cognitive impairment in a murine model of surgical sepsis

FEBS Open Bio, EarlyView.
Using a mouse model of surgical sepsis, we tested long‐term memory and analyzed the transcriptome of single cells isolated from the hippocampus. Survivor mice showed worse memory, loss of certain brain cell subpopulations, and abnormal immune cell activity—suggesting that post‐sepsis brain alterations may be linked to cognitive deficits.
Dong Seong Cho, Rebecca Schmitt, Aneesha Dasgupta, Alexandra Ducharme, Jason Doles   +4 more
wiley   +1 more source

Complex permeability of soft magnetic ferrite polyester resin composites at frequencies above 1 MHz [PDF]

, 1999
Composite soft magnetic materials consist of magnetic particles in a non-magnetic matrix. The properties of such materials can be modelled using effective medium theory. Measurements have been made of the complex permeability of composites produced using
Devine, R, Paterson, J H, Phelps, A D R
core   +1 more source