Results 61 to 70 of about 839,655 (313)
Evaluation of turbulence measurement techniques from a single Doppler lidar [PDF]
Atmospheric Measurement Techniques, 2017 Measurements of turbulence are essential to understand and quantify the transport and dispersal of heat, moisture, momentum, and trace gases within the planetary boundary layer (PBL).
T. A. Bonin +12 more
doaj +1 more source
Cell Membrane‐Coated Lipid Nanoparticles for Drug Delivery
Aggregate, EarlyView.This review highlights recent progress in cell membrane‐coated lipid nanoparticles (CMC‐LNPs), focusing on their design, preparation methods, functional integration, and biomedical applications. It discusses various types of LNPs and coating strategies, characterization techniques, therapeutic functions, and applications.
Moataz B. Zewail +5 more
wiley +1 more source
The Transport and Evolution of MHD Turbulence throughout the Heliosphere: Models and Observations
Fluids, 2021 A detailed study of solar wind turbulence throughout the heliosphere in both the upwind and downwind directions is presented. We use an incompressible magnetohydrodynamic (MHD) turbulence model that includes the effects of electrons, the separation of ...
Laxman Adhikari +2 more
doaj +1 more source
Towards a self-consistent Boltzmann's kinetic model of fluid turbulence [PDF]
arXiv, 2020 A closure for the effective relaxation time of the Boltzmann-BGK kinetic equation for fluid turbulence is presented, based on a double-averaging procedure over both kinetic and turbulent fluctuations. The resulting effective relaxation time appears to agree with values obtained via a renormalization group treatment of the Navier-Stokes equation only at
arxiv
, 2017 We study the energy transfer properties of three dimensional homogeneous and isotropic turbulence where the non-linear transfer is altered in a way that helicity is made sign-definite, say positive.
Biferale, Luca +2 more
core +1 more source
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract This study addresses significant process challenges associated with the reactive nature of hemicellulose‐derived furan intermediates in aqueous mediums. A continuous agitated cell reactor was used to intensify the extractive reaction using methyl isobutyl ketone as an extractive phase to isolate in situ the furan products obtained by ...
Abdullahi Adamu +2 more
wiley +1 more source
Effect of large-scale coherent structures on turbulent convection [PDF]
Physical Review E, 79, 066302 (2009), 2009 We study an effect of large-scale coherent structures on global properties of turbulent convection in laboratory experiments in air flow in a rectangular chamber with aspect ratios $A \approx 2$ and $A\approx 4$ (with the Rayleigh numbers varying in the range from $5 \times 10^6$ to $10^8$). The large-scale coherent structures comprise the one-cell and
arxiv +1 more source
Magnetic Field Rotations in the Solar Wind at Kinetic Scales
, 2015 The solar wind magnetic field contains rotations at a broad range of scales, which have been extensively studied in the MHD range. Here we present an extension of this analysis to the range between ion and electron kinetic scales.
Burgess, D. +3 more
core +1 more source
Biotechnology Progress, EarlyView.Abstract One strategy to enhance the production of biological therapeutics is using transient perfusion in the preculture (N‐1 stage) to seed the production culture (N stage) at ultra‐high cell densities (>10 x 106 viable cells/mL). This very high seeding density improves cell culture performance by shortening the timeline and/or achieving higher final
Lucas Lemire +5 more
wiley +1 more source
Energies, 2018 The operation of the wind turbines downstream is affected by the wake of the wind turbines upstream. Wind turbine wake flow is investigated by applying the actuator disc (AD) method. The modified k-ε turbulence model is proposed by using both the
Huilai Ren +3 more
doaj +1 more source