Results 181 to 190 of about 9,288 (249)

A Thermodynamic Framework for Turing‐Type Instabilities in Porous Media: Part I Theory

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.
Abstract Pattern formation in geological materials is commonly described using analogies to Turing‐type reaction–diffusion systems, yet a unifying thermodynamic explanation remains elusive. Here we develop a multiscale, thermodynamically consistent framework for pattern‐forming instabilities in porous media undergoing coupled thermo–hydro–mechanical ...
Klaus Regenauer‐Lieb, Manman Hu, Qingpei Sun, Chong Liu, Zhennan Zhu, Victor Calo   +5 more
wiley   +1 more source

Energy Partition at a Collisionless Supercritical Quasi‐Parallel Shock

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Shocks in collisionless astrophysical plasmas redistribute some of the incident flow energy into both thermal and non‐thermal energy. Quantifying the partition of that energy amongst various particle species or their sub‐populations, and electromagnetic energy, represents a fundamental goal of shock physics.
Steven J. Schwartz, Karlheinz J. Trattner, Savvas Raptis, Robert E. Ergun, Lynn B. Wilson III, Roman G. Gomez, Ian J. Cohen, Daniel J. Gershman, Katherine A. Goodrich, Harald Kucharek, Tien Vo   +10 more
wiley   +1 more source

Modeling the Deformation Response to Mt. Etna Sliding Flank

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract The southeastern flank of Mt. Etna volcano slides into the Ionian Sea at rates of centimeters per year. While gravitational spreading and tectonic forces can cause volcanic flank collapse, their effects intrinsically trade off with magmatic forcing. There is still strong uncertainty regarding the processes underlying the sliding.
Michelle Bensing, Sergio Vinciguerra, Giuseppe Puglisi, Luca De Siena   +3 more
wiley   +1 more source

Topographic Scattering of Internal Waves in the Presence of a Steady Surface Current

Journal of Geophysical Research: Oceans, Volume 131, Issue 3, March 2026.
Abstract Wave–topography interaction is one of the primary mechanisms through which internal wave energy cascades to small length scales, eventually leading to turbulent diffusion and mixing in the oceans. Precise diffusivity parametrizations are crucial for modeling oceanic flows accurately.
Saranraj Gururaj, Anirban Guha
wiley   +1 more source

A Method for High Throughput Free Fatty Acids Determination in a Small Section of Bovine Liver Tissue Using Supercritical Fluid Extraction Combined with Supercritical Fluid Chromatography-Medium Vacuum Chemical Ionization Mass Spectrometry. [PDF]

Mass Spectrom (Tokyo)
Hondo T, Miyake Y, Toyoda M.
europepmc   +1 more source

Modeling the Drying Process of CO2‐Water in Porous Media With a Novel Volume‐of‐Fluid Lattice Boltzmann Model

Water Resources Research, Volume 62, Issue 3, March 2026.
Abstract Lattice Boltzmann (LB) modeling has been extensively applied to porous media processes, including evaporation. Former pore‐scale LB models for evaporation rely on oversimplified assumptions, such as matched viscosities. However, in subsurface CO2 ${\text{CO}}_{2}$–brine systems, the viscosity ratio can exceed 100 under relevant temperature ...
Saleh Mohammadrezaei, Rouhi Farajzadeh, Vahid Niasar   +2 more
wiley   +1 more source

Longitudinal Mean Velocity and Turbulent Kinetic Energy Within an Emergent Canopy in Nonuniform Flows

Water Resources Research, Volume 62, Issue 3, March 2026.
Abstract Vegetation‐induced drag generates nonuniform water surface profiles through flow disruption, creating complex hydrodynamic conditions characterized by enhanced turbulence and energy dissipation. This study investigates the longitudinal velocity and turbulent kinetic energy (TKE) dynamics in emergent canopies under streamwise varying flow ...
Yonggang Zhang, Ping Wang, Ke Xiang, Zheng Gong, Zi Wu   +4 more
wiley   +1 more source

Variational and Monte Carlo Methods for Bayesian Inversion of Dynamic Subsurface Flow Simulations Using Seismic and Fluid Pressure Data

Water Resources Research, Volume 62, Issue 3, March 2026.
Abstract In order to predict future performance of subsurface fluid reservoirs under possible operating scenarios, a dynamic, porous‐medium flow simulation model must be tuned to include representative properties of the reservoir. Estimating subsurface reservoir properties given remotely sensed or borehole‐based observations typically involves finding ...
Zhen Zhang, Xuebin Zhao, Andrew Curtis
wiley   +1 more source

Schauder estimates for parabolic p$p$‐Laplace systems

Journal of the London Mathematical Society, Volume 113, Issue 3, March 2026.
Abstract We establish the local Hölder regularity of the spatial gradient of bounded weak solutions u:ET→Rk$u\colon E_T\rightarrow \mathbb {R}^k$ to the nonlinear system of parabolic type ∂tu−div(a(x,t)μ2+|Du|2p−22Du)=0inET,$$\begin{equation*} \partial _tu-\operatorname{div}{\Big(a(x,t){\left(\mu ^2+|Du|^2\right)}^\frac{p-2}{2}Du\Big)}=0 \qquad \mbox ...
Verena Bögelein, Frank Duzaar, Ugo Gianazza, Naian Liao, Christoph Scheven   +4 more
wiley   +1 more source

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Supercritical Fluid Extraction

2023
In this chapter, we highlight the basic concepts behind the use of SFE to select molecules present in food matrices, e.g., carotenoids, essential oils, waxes, and phenolic compounds. Also, we highlight the SFE equipment setup, the methods for process intensification, and mass transfer mechanisms involved in the process, besides the advantages and ...
Ádina L. Santana, Larry O. Chañi-Paucar, Priscilla C. Veggi, Juliane Viganó, M. Angela A. Meireles   +4 more
openaire   +1 more source