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Using the Taylor--Couette geometry we experimentally investigate the effect of salt on drag reduction caused by bubbles present in the flow. We combine torque measurements with optical high-speed imaging to relate the bubble size to the…

Fluid Dynamics · Physics 2023-02-15 Luuk J. Blaauw , Detlef Lohse , Sander G. Huisman

Sudden Stratospheric Warmings (SSW) affect the chemistry and dynamics of the middle atmosphere. Major warmings occur roughly every second winter in the Northern Hemisphere (NH), but has only been observed once in the Southern Hemisphere…

How do solute concentration and molecular chemistry govern the transition from membrane saturation to destabilization? We address this using microsecond-scale molecular dynamics simulations of dipalmitoylphosphatidylcholine (DPPC) bilayers…

Soft Condensed Matter · Physics 2026-05-12 Anirban Polley

Main sequence M stars pose an interesting problem for astrobiology: their abundance in our galaxy makes them likely targets in the hunt for habitable planets, but their strong chromospheric activity produces high energy radiation and…

Earth and Planetary Astrophysics · Physics 2015-05-19 Antígona Segura , Lucianne Walkowicz , Victoria Meadows , James Kasting , Suzanne Hawley

We investigate the effect of star formation on turbulence in the Orion A and Ophiuchus clouds using principal component analysis (PCA). We measure the properties of turbulence by applying PCA on the spectral maps in $^{13}$CO, C$^{18}$O,…

Water quality is of great importance for humans and for the environment and has to be monitored continuously. It is determinable through proxies such as the chlorophyll a concentration, which can be monitored by remote sensing techniques.…

Image and Video Processing · Electrical Eng. & Systems 2019-08-22 Philipp M. Maier , Sina Keller

Turbulence is indispensable to redistribute nutrients for all life forms larger than microbial, on land and in the ocean. Yet, the development of deep-sea turbulence was not studied in three dimensions to date. As a disproportionate…

Fluid Dynamics · Physics 2026-01-09 Hans van Haren

Saltation threshold, the minimum wind speed for sediment transport, is a fundamental parameter in aeolian processes. The presence of liquid, such as water on Earth or methane on Titan, may affect the threshold values to a great extent.…

Earth and Planetary Astrophysics · Physics 2017-10-18 Xinting Yu , Sarah M. Hörst , Chao He , Nathan T. Bridges , Devon M. Burr , Joshua A. Sebree , James K. Smith

Chlorine (Cl) is a chemical element of the group of the halogens and is between the 17th and the 20th most abundant elements in the Solar System. It is thought to be produced from the capture of a proton or neutron by specific alpha-element…

Astrophysics of Galaxies · Physics 2024-10-25 Maialen Orte-García , César Esteban , José Eduardo Méndez-Delgado , Jorge García-Rojas

In the presence of a laminar shear flow, the diffusion of passive colloidal particles is enhanced in the direction parallel to the flow. This classical phenomenon is known as Taylor-Aris dispersion. Besides, microorganisms, such as active…

According to the analysis of the $^{14}$C content of two Japanese trees over a period of approximately 3000 years at high time resolution, Miyake (2012) found a rapid increase at AD 774-775 and later on at AD 992-993 (Miyake 2013). This…

History and Philosophy of Physics · Physics 2018-07-25 Ya-Ting Chai , Yuan-Chuan Zou

The outbreaks of algal blooms occur in both shallow and deep-water bodies. To compare the characteristics of algal blooms in the shallow and deep water, we consider the Arabian Gulf and Sea of Oman as a case study. While the Arabian Gulf is…

Populations and Evolution · Quantitative Biology 2020-03-17 Maryam R. Al Shehhi , David Nelson , Rashid R Alkhori , Rashid Alshihi , Kourosh Salehi-Ashtiani

Solid mineral-based particles have been proposed as alternatives to sulfates for climate intervention by stratospheric aerosol injection, as a means for improving optical or chemical characteristics and thereby minimize risks and…

The Model Coupling Executable Library (MCEL), developed at the University of Southern Mississippi's Center of Higher Learning, has been successfully used to couple the Coupled Ocean/Atmospheric Mesoscale Prediction System (COAMPS) and the…

Atmospheric and Oceanic Physics · Physics 2017-04-20 Pat Fitzpatrick , Gueorgui Mostovoi , Yongzuo Li , Matt Bettencourt , Shahrdad G. Sajjadi

The role of compressible fluctuations in the energy cascade of fast solar wind turbulence is studied using a reduced form of an exact law derived recently (Banerjee and Galtier, PRE, 2013) for compressible isothermal magnetohydrodynamics…

Space Physics · Physics 2016-10-05 Supratik Banerjee , Lina Z. Hadid , Fouad Sahraoui , Sebastien Galtier

Thermal behaviors of hydroxypropyl cellulose dilute aqueous solutions with impurities of Group~I alkali metal ions (Li, Na, K, Rb and Cs chlorides) has been studied by means of static and dynamic light scattering measurements. From the…

Soft Condensed Matter · Physics 2025-04-08 Valery I. Kovalchuk

As a long-term energy source, tidal heating in subsurface oceans of icy satellites can influence their thermal, rotational, and orbital evolution, and the sustainability of oceans. We present a new theoretical treatment for tidal heating in…

Earth and Planetary Astrophysics · Physics 2018-06-06 Isamu Matsuyama , Mikael Beuthe , Hamish C. F. C. Hay , Francis Nimmo , Shunichi Kamata

Cyclone Amphan, a super cyclone in the Bay of Bengal after 21 years, intensified from a cyclonic storm (CAT 1) to a super cyclone (CAT 5) in less than 36 hours. It went on to make landfall over West Bengal as a Very Severe Cyclonic Storm…

Atmospheric and Oceanic Physics · Physics 2020-11-20 Sridhar Balasubramanian , Vamsi K Chalamalla

We demonstrate that the permeability of the cell wall of microalga $\textit{C. reinhardtii}$ can be enhanced in controlled microstreaming flow conditions using single bubbles adherent to a wall and driven by ultrasound near their resonance…

Quantitative Methods · Quantitative Biology 2021-12-20 Angelo Pommella , Irina Harun , Klaus Hellgardt , Valeria Garbin

Instability mechanism based on Coriolis force, on a rapidly rotating portable device handling shear thinning fluids such as blood, is of utmost importance for eventual detection of diseases by mixing with the suitable reagents. Motivated by…

Fluid Dynamics · Physics 2020-04-14 Saunak Sengupta , Sukhendu Ghosh , Suman Chakraborty