Results 41 to 50 of about 1,379,495 (302)

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

Mineral Composition and Hydrophilicity/Hydrophobicity of Solid Particles Isolated from Inner Mongolia Oil Sands

open access: yesYankuang ceshi, 2022
BACKGROUND Oil sand is an important unconventional oil and gas resource, which is composed of bitumen, solid particles (including coarse and fine particles) and water.
WANG Cheng   +3 more
doaj   +1 more source

High speed synchrotron X-ray imaging studies of the ultrasound shockwave and enhanced flow during metal solidification processes [PDF]

open access: yes, 2015
The highly dynamic behaviour of ultrasonic bubble implosion in liquid metal, the multiphase liquid metal flow containing bubbles and particles, and the interaction between ultrasonic waves and semisolid phases during solidification of metal were studied ...
B. Chalmers   +41 more
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Experimental and Numerical Investigation of Spray Scrubber Dust Collection Efficiency

open access: yesApplied Sciences
Spray scrubbers are widely used in gas purification applications and allow fulfillment of the demands of air quality norms introduced all over the world.
Adam Tomaszewski   +2 more
doaj   +1 more source

Characterization of Friction and Wear Behavior of Friction Modifiers used in Wheel-Rail Contacts

open access: yesInternational Journal of Prognostics and Health Management, 2017
Reliable traction between wheel and rail is an important issue in the railway industry. To reduce variations in the coefficient of friction, so-called “friction modifiers” (carrier with particles) are used. Twin-disk tests were done with three commercial
M. A. Oomen, R. Bosman, P.M. Lugt
doaj   +1 more source

Particle–Fluid Suspension of a Non-Newtonian Fluid Through a Curved Passage: An Application of Urinary Tract Infections

open access: yesFrontiers in Physics, 2020
The current investigation deals with the inclusion of solid particles in the flow of a non-Newtonian incompressible fluid passing through a symmetric, curved channel admitting flexible walls and exhibiting wavy characteristics for the passage of fluid ...
Arshad Riaz, Muhammad Adil Sadiq
doaj   +1 more source

Effect of Liquid Droplets on Turbulence Structure in a Round Gaseous Jet [PDF]

open access: yes, 1983
A second-order model which predicts the modulation of turbulence in jets laden with uniform size solid particles or liquid droplets is discussed. The approach followed is to start from the separate momentum and continuity equations of each phase and ...
Elghobashi, S. E., Mostafa, A. M.
core   +2 more sources

Spatio-temporal correlations in Wigner molecules

open access: yes, 2015
The dynamical response of Coulomb-interacting particles in nano-clusters are analyzed at different temperatures characterizing their solid- and liquid-like behavior. Depending on the trap-symmetry, both the spatial and temporal correlations undergo slow,
Ash, Biswarup   +2 more
core   +1 more source

Effect of tangential swirl air inlet angle on the combustion efficiency of a hybrid powder-solid ramjet [PDF]

open access: yes, 2019
A new ramjet configuration using powder and solid fuel as propellant is investigated, namely, hybrid powder-solid ramjet (HPSR). Boron particles were used as the powder in this study.
ANSYS Inc   +49 more
core   +1 more source

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