Results 31 to 40 of about 402,558 (283)

A multi-angle plane wave imaging approach for high frequency 2D flow visualization in small animals: simulation study in the murine arterial system [PDF]

open access: yes, 2014
To preclinically investigate the role of hemodynamics in atherogenesis, mouse models are particularly useful due to the rapid disease development. As such, murine blood flow visualization has become an important tool, with current US systems equipped ...
Ekroll, Ingvild   +5 more
core   +1 more source

Spectrum Estimation of Spatial Velocity Component Pulsations

open access: yesThe Eurasia Proceedings of Science Technology Engineering and Mathematics
One of the objectives in the study of turbulent flows is to determine the spectral features of flow parameters. Typically, the longitudinal and transverse components of the velocity vector are parameters for which spectral analysis is carried out. In the present study, the spectrum of pulsations of a turbulent velocity sampled in the spatial domain is ...
Kusyumov, Alexander, Kusyumov, Sergey
openaire   +2 more sources

Application of Fractal Dimension for Quantifying Noise Texture in Computed Tomography Images [PDF]

open access: yes, 2018
Purpose Evaluation of noise texture information in CT images is important for assessing image quality. Noise texture is often quantified by the noise power spectrum (NPS), which requires numerous image realizations to estimate.
Crotty, Dominic J.   +4 more
core   +2 more sources

CNN-based blind SIR classification framework for STPA-BAA spectrum superposing

open access: yesICT Express, 2023
Spectrum sharing in the spatial domain among the plurality of wireless communication systems should be addressed due to its exhaustion. We previously conceptualized a spectrum superposing enabled by subcarrier transmission power assignment (STPA) and ...
Hiroaki Kobayashi   +4 more
doaj   +1 more source

Measurements of scalar power spectra in high Schmidt number turbulent jets [PDF]

open access: yes, 1996
We report on an experimental investigation of temporal, scalar power spectra of round, high Schmidt number (Sc ≃ 1.9 × 10^3), momentum-dominated turbulent jets, for jet Reynolds numbers in the range of 1.25 × 10^4 ≤ Re ≤ 7.2 × 10^4.
Dimotakis, Paul E., Miller, Paul L.
core   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

On the relevance of Reynolds stresses in resolvent analyses of turbulent wall-bounded flows

open access: yes, 2019
The ability of linear stochastic response analysis to estimate coherent motions is investigated in turbulent channel flow at friction Reynolds number Re$_\tau$ = 1007.
Cossu, Carlo   +3 more
core   +1 more source

Characterization of multi-channel interference [PDF]

open access: yes, 2008
Multi-channel communication protocols in wireless networks usually assume perfect orthogonality between wireless channels or consider only the use of interference-free channels.
Durmaz Incel, Ozlem, Jansen, Pierre
core   +3 more sources

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

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