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View article: Resonance sonomanometry for noninvasive, continuous monitoring of blood pressure
Resonance sonomanometry for noninvasive, continuous monitoring of blood pressure Open
Cardiovascular disease is the leading cause of death worldwide. Existing methods for continuous, noninvasive blood pressure (BP) monitoring suffer from poor accuracy, uncomfortable form factors, or a need for frequent calibration, limiting…
View article: Measurements and modelling of induced flow in collective vertical migration
Measurements and modelling of induced flow in collective vertical migration Open
Hydrodynamic interactions between swimming or flying organisms can lead to complex flows on the scale of the group. These emergent fluid dynamics are often more complex than a linear superposition of individual organism flows, especially a…
View article: Resonance sonomanometry for noninvasive, continuous monitoring of blood pressure
Resonance sonomanometry for noninvasive, continuous monitoring of blood pressure Open
Cardiovascular disease is the leading cause of death worldwide. Existing methods for continuous, noninvasive blood pressure monitoring suffer from poor accuracy, uncomfortable form factors, or a need for frequent calibration, limiting thei…
View article: Visualizing moiré ferroelectricity via plasmons and nano-photocurrent in graphene/twisted-WSe2 structures
Visualizing moiré ferroelectricity via plasmons and nano-photocurrent in graphene/twisted-WSe2 structures Open
Ferroelectricity, a spontaneous and reversible electric polarization, is found in certain classes of van der Waals (vdW) materials. The discovery of ferroelectricity in twisted vdW layers provides new opportunities to engineer spatially de…
View article: Visualizing moiré ferroelectricity via plasmons and nano-photocurrent in graphene/twisted-WSe2 structures
Visualizing moiré ferroelectricity via plasmons and nano-photocurrent in graphene/twisted-WSe2 structures Open
Ferroelectricity, a spontaneous and reversible electric polarization, is found in certain classes of van der Waals (vdW) material heterostructures. The discovery of ferroelectricity in twisted vdW layers provides new opportunities to engin…
View article: Turbulent drag reduction by spanwise wall forcing. Part 1. Large-eddy simulations
Turbulent drag reduction by spanwise wall forcing. Part 1. Large-eddy simulations Open
Turbulent drag reduction (DR) through streamwise travelling waves of the spanwise wall oscillation is investigated over a wide range of Reynolds numbers. Here, in Part 1, wall-resolved large-eddy simulations in a channel flow are conducted…
View article: Turbulent drag reduction by spanwise wall forcing. Part 2. High-Reynolds-number experiments
Turbulent drag reduction by spanwise wall forcing. Part 2. High-Reynolds-number experiments Open
We present measurements of turbulent drag reduction (DR) in boundary layers at high friction Reynolds numbers in the range of $4500 \le Re_\tau \le 15\ 000$ . The efficacy of the approach, using streamwise travelling waves of spanwise wall…
View article: Visual anemometry: physics-informed inference of wind for renewable energy, urban sustainability, and environmental science
Visual anemometry: physics-informed inference of wind for renewable energy, urban sustainability, and environmental science Open
Accurate measurements of atmospheric flows at meter-scale resolution are essential for a broad range of sustainability applications, including optimal design of wind and solar farms, safe and efficient urban air mobility, monitoring of env…
View article: Magnetic Signature of Vertically Migrating Aggregations in the Ocean
Magnetic Signature of Vertically Migrating Aggregations in the Ocean Open
The significance of fluid transport in the ocean due to migrating aggregations of zooplankton remains poorly understood due to practical challenges associated with predicting, identifying, and quantifying instances of enhanced biogenic mix…
View article: Logarithmic scaling of higher-order temperature moments in the atmospheric surface layer
Logarithmic scaling of higher-order temperature moments in the atmospheric surface layer Open
A generalized logarithmic law for high-order moments of passive scalars is proposed for turbulent boundary layers. This law is analogous to the generalized log law that has been proposed for high-order moments of the turbulent longitudinal…
View article: Persistent Laminar Flow at Reynolds Numbers Exceeding 100,000
Persistent Laminar Flow at Reynolds Numbers Exceeding 100,000 Open
Accurate prediction of the transition from laminar flow to turbulence remains an unresolved challenge despite its importance for understanding a variety of environmental, biological, and industrial phenomena. Well over a century of concert…
View article: Turbulent drag reduction by spanwise wall forcing. Part 2: High-Reynolds-number experiments
Turbulent drag reduction by spanwise wall forcing. Part 2: High-Reynolds-number experiments Open
Here, we present measurements of turbulent drag reduction in boundary layers at high friction Reynolds numbers in the range of $4500 \le Re_τ\le 15000$. The efficacy of the approach, using streamwise travelling waves of spanwise wall oscil…
View article: Turbulent drag reduction by spanwise wall forcing. Part 1: Large-eddy simulations
Turbulent drag reduction by spanwise wall forcing. Part 1: Large-eddy simulations Open
Turbulent drag reduction through streamwise travelling waves of spanwise wall oscillation is investigated over a wide range of Reynolds numbers. Here, in Part 1, wall-resolved large-eddy simulations in a channel flow are conducted to exami…
View article: Machine Learning for Optical Scanning Probe Nanoscopy
Machine Learning for Optical Scanning Probe Nanoscopy Open
The ability to perform nanometer‐scale optical imaging and spectroscopy is key to deciphering the low‐energy effects in quantum materials, as well as vibrational fingerprints in planetary and extraterrestrial particles, catalytic substance…
View article: Programming moiré patterns in 2D materials by bending
Programming moiré patterns in 2D materials by bending Open
Moiré superlattices in twisted two-dimensional materials have generated tremendous excitement as a platform for achieving quantum properties on demand. However, the moiré pattern is highly sensitive to the interlayer atomic registry, and c…
View article: Magnetic signature of vertically migrating aggregations in the ocean
Magnetic signature of vertically migrating aggregations in the ocean Open
The transport of heat and solutes by vertically migrating aggregations of plankton has long been explored as a potentially important source of ocean mixing. However, direct evidence of enhanced mixing due to these migrations remains challe…
View article: SerialTrack: ScalE and rotation invariant augmented Lagrangian particle tracking
SerialTrack: ScalE and rotation invariant augmented Lagrangian particle tracking Open
We present a new particle tracking algorithm for accurately resolving large deformation and rotational motion fields, which takes advantage of both local and global particle tracking algorithms. We call this method ScalE and Rotation Invar…
View article: Multiwavelength and Multimessenger Observations of Blazars and Theoretical Modeling: Blazars as Astrophysical Neutrino Sources
Multiwavelength and Multimessenger Observations of Blazars and Theoretical Modeling: Blazars as Astrophysical Neutrino Sources Open
This contribution reviews recent advances in the possible identification of blazars as potential sources of at least some of the very-high-energy neutrinos detected by the IceCube neutrino detector at the South Pole. The basic physical req…
View article: Machine Learning for Optical Scanning Probe Nanoscopy
Machine Learning for Optical Scanning Probe Nanoscopy Open
The ability to perform nanometer-scale optical imaging and spectroscopy is key to deciphering the low-energy effects in quantum materials, as well as vibrational fingerprints in planetary and extraterrestrial particles, catalytic substance…
View article: SerialTrack: ScalE and Rotation Invariant Augmented Lagrangian Particle Tracking
SerialTrack: ScalE and Rotation Invariant Augmented Lagrangian Particle Tracking Open
We present a new particle tracking algorithm to accurately resolve large deformation and rotational motion fields, which takes advantage of both local and global particle tracking algorithms. We call this method the ScalE and Rotation Inva…
View article: A Soft Material Flow Sensor for Micro Air Vehicles
A Soft Material Flow Sensor for Micro Air Vehicles Open
To control and navigate micro air vehicles (MAVs) efficiently, there is a need for small, lightweight, durable, sensitive, fast, and low-power airspeed sensors. When designing sensors to meet these requirements, soft materials are promisin…
View article: Investigation of Incidents and Trends of Antimicrobial Resistance in Foodborne Pathogens in Eight Countries from Historical Sample Data
Investigation of Incidents and Trends of Antimicrobial Resistance in Foodborne Pathogens in Eight Countries from Historical Sample Data Open
Antimicrobial resistance (AMR) causes millions of illnesses every year, threatening the success of lifesaving antibiotic therapy and, thus, public health. To examine the rise and spread of antimicrobial resistance around the world, our stu…
View article: Comparison between super-hydrophobic, liquid infused and rough surfaces: a direct numerical simulation study
Comparison between super-hydrophobic, liquid infused and rough surfaces: a direct numerical simulation study Open
Direct numerical simulations of two superposed fluids in a channel with a textured surface on the lower wall have been carried out. A parametric study varying the viscosity ratio between the two fluids has been performed to mimic both idea…
View article: Turbulent drag reduction over air- and liquid- impregnated surfaces
Turbulent drag reduction over air- and liquid- impregnated surfaces Open
Results on turbulent skin friction reduction over air- and liquid-impregnated surfaces are presented for aqueous Taylor-Couette flow. The surfaces are fabricated by mechanically texturing the inner cylinder and chemically modifying the fea…