Results 261 to 270 of about 5,633,594 (332)

The clinical and physiological profiles of kissing stents in endovascular reconstruction of aortoiliac occlusive disease

open access: yesExperimental Physiology, EarlyView.
Abstract Aortoiliac occlusive disease affecting the abdominal aorta and iliac arteries is conventionally treated with open surgical repair and is the mainstay of treatment. Endovascular techniques have become a less invasive alternative, especially for high‐risk patients.
Christopher J. Goulden   +8 more
wiley   +1 more source

Continuous carbon dioxide monitoring in the exhaled breath of mechanically ventilated rats

open access: yesExperimental Physiology, EarlyView.
Abstract In small animals, carbon dioxide monitoring is either limited by the need to take blood samples for gas analysis, or it interferes with respiratory efficiency and lung mechanics analysis. We introduced a novel approach for continuous monitoring of CO2 in the expiratory limb of the breathing circuit.
Christin Wenzel   +7 more
wiley   +1 more source

Computational analysis to assess hemodynamic forces in descending thoracic aortic aneurysms

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Left: Pre‐processing. First, we perform the segmentation of the Computer Tomography angiorgraphy (angio‐CT) scans of a healthy patient, obtaining the surface of a healthy thoracic aorta with a Type III aortic arch. Then, we build nine ideal configurations with Descending Thoracic Aortic Aneurysm (DTAA), varying the aortic arch ...
Francesca Duca   +7 more
wiley   +1 more source

Enhancing stroke risk stratification in atrial fibrillation through non‐Newtonian blood modelling and Gaussian process emulation

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Non‐Newtonian modelling and GPEs for stroke risk in atrial fibrilation patients. Abstract Atrial fibrillation (AF) is the most common heart arrhythmia, linked to a five‐fold increase in stroke risk. The left atrial appendage (LAA), prone to blood stasis, is a common thrombus formation site in AF patients.
Paolo Melidoro   +12 more
wiley   +1 more source

Virtual left atrial appendage occlusion in paroxysmal atrial fibrillation during sinus rhythm predicts variable reductions in blood stasis

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Stasis before and after left atrial appendage occlusion (LAAO) in participants with high stasis and low stasis. Stasis is predominantly located in LAA and reduced after LAAO. But in the participant with high stasis, stasis remains close to the occlusion site, indicating a potential risk for device related thrombi.
Sophia Bäck   +6 more
wiley   +1 more source

CFD Simulation of Helicopter Downwash

open access: yes
Several 3D CFD simulations of helicopter downwash are conducted in this master’s thesis. It aims to analyse the induced downwash pattern from a Search and Rescue (SAR) QUEEN helicopter, with and without the fuselage, on its surroundings and determine the mean downwash velocities while hovering at 50 feet and 90 feet and during landing at the Stavanger ...
openaire   +1 more source

Bottom‐Up Ice Growth Geometry Attenuates Shear Stress and Improves the Cryopreservation of Hematopoietic Stem/Progenitor Cells Under Low DMSO Concentrations

open access: yesBiotechnology and Bioengineering, Volume 123, Issue 3, Page 582-597, March 2026.
ABSTRACT Studies on cell cryopreservation have been limited by the complexity of the freezing process and challenges on controlling ice formation, managing cooling rates, and optimizing cryoprotectant concentrations. The objective of this study is to evaluate the impact of bottom‐up and conventional radial freezing on the viability of mammalian cells ...
Rafaela Ouro Neves   +8 more
wiley   +1 more source

Learning hydrocracking reaction dynamics via neural ODEs: A data‐driven, gradient‐interpretable lumped modelling framework

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 3, Page 1372-1386, March 2026.
This work demonstrates the application of neural ordinary differential equations (neural ODEs) for learning hydrocracking reaction kinetics directly from data, achieving robust predictions under noise and sparsity while preserving mechanistic interpretability through gradient‐based analysis of temperature‐ and concentration‐dependent reaction rates ...
Souvik Ta   +2 more
wiley   +1 more source

Analysis of Turbulent Modeling for Free‐Surface Flows Using a Hybrid RANS‐LES Model and Particle‐Based Moving Particle Semi‐Implicit Method

open access: yesInternational Journal for Numerical Methods in Fluids, Volume 98, Issue 3, Page 321-347, March 2026.
A hybrid RANS‐LES turbulence model adapted for the Moving Particle Semi‐implicit method is employed to investigate a turbulent free surface flow. A method based on the cell‐linked list is proposed to speed up the nearest wall search for the turbulence model.
Fabio Kenji Motezuki   +3 more
wiley   +1 more source

Versatile and Highly Efficient MRI Simulation of Arbitrary Motion in KomaMRI

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 3, Page 1791-1803, March 2026.
ABSTRACT Purpose To extend the KomaMRI simulator with motion capabilities that enable the simulation of both simple, parametrizable motion patterns and arbitrarily complex spin trajectories. Additionally, we introduce a novel file format for storing and sharing dynamic digital phantoms.
Pablo Villacorta‐Aylagas   +7 more
wiley   +1 more source

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