Results 51 to 60 of about 527 (165)

Predicting Direction of High‐Speed Wind: A Bayesian Approach to Conditional Cylindrical Distributions

open access: yesEnvironmetrics, Volume 37, Issue 4, May 2026.
ABSTRACT High‐speed winds pose several dangers to both the built environment and the natural environment, affecting human lives and livelihoods, as well as endangering wildlife. On the other hand, high‐speed winds can be beneficially harnessed through the optimal orientation of turbines to maximize wind energy production.
Najmeh Nakhaei Rad   +2 more
wiley   +1 more source

Structural Features of Highly Bioactive Citrus IntegroPectin Revealed by X‐Ray Diffraction, Fourier Transform Infrared, and Nanoparticle Tracking Analysis

open access: yesChemistryOpen, Volume 15, Issue 5, May 2026.
Structural investigation of lemon, orange, and red orange IntegroPectin using X‐ray diffraction, infrared spectroscopy, and nanoparticle tracking analysis unveils several structural nuances of relevance to forthcoming studies on the use of citrus IntegroPectin for therapy and prevention of numerous diseases.
Rosaria Ciriminna   +11 more
wiley   +1 more source

Fate of orphans of Canada geese harvested by hunters in Connecticut, USA, depends upon which month the parents were killed

open access: yesWildlife Biology, Volume 2026, Issue 3, May 2026.
Little is known about what happens to juvenile birds after one or both of their parents are harvested by hunters during the post‐fledging dependency period. Here, we compare the fate of juvenile Canada geese Branta canadensis that lost ≥ 1 parent to hunters (orphans) during this period to other juveniles that retained both parents (non‐orphans). For 25
Michael R. Conover, Lauren J. Head
wiley   +1 more source

Drivers of Mid‐Latitude Quiet‐Time Longitude Variations in Ionospheric Density

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract The aim of this study is to provide an observational benchmark of mid‐latitude quiet‐time variability in winds, O/N2, and TEC across longitude and local time to provide a foundation for future model–data comparison studies. The quiet‐time ionospheric structure is not uniform but rather exhibits pronounced longitudinal and local‐time ...
K. R. Greer   +3 more
wiley   +1 more source

Picone identities for half-linear elliptic operators with p(x)-Laplacians and applications to Sturmian comparison theory

open access: yes, 2011
application/pdfPicone identities are established for a class of half-linear elliptic operators with p(x)-Laplacians, and Sturmian comparison theorems are obtained on the basis of the Picone identities. Generalizations to half-linear elliptic inequalities
Norio Yoshida, Yoshida, Norio
core   +1 more source

Eigenvalues of the -Laplacian and disconjugacy criteria

open access: yesJournal of Inequalities and Applications, 2006
We derive oscillation and nonoscillation criteria for the one-dimensional -Laplacian in terms of an eigenvalue inequality for a mixed problem. We generalize the results obtained in the linear case by Nehari and Willett, and the proof is based on a ...
Pinasco Juan P, De Napoli Pablo L
doaj  

WACCM‐X Simulation of the Atmosphere From 1950 Through 2024 at an Hourly Resolution

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Modeling of the upper atmosphere, namely the thermosphere and ionosphere, is becoming important for applications such as orbital propagation (including satellite collision avoidance), radio propagation for communications, radar and position, navigation and timing.
M. K. Brown   +3 more
wiley   +1 more source

STURM-PICONE COMPARISON THEOREM FOR MATRIX SYSTEMS ON TIME SCALES

open access: yes, 2020
A well-known Picone identity is extended and generalized to second-order dynamic matrix equations on arbitrary time scales. A comparison theorem is obtained in the spirit of the classical Sturm-Picone comparison theorem that extends known scalar results ...
Douglas R Anderson, John R Graef
core  

The Contribution of the Russell‐McPherron Effect to the Semiannual Variation in Thermospheric Density

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract A number of external sources and internal circulation mechanisms have been proposed to explain the well‐known semiannual variation in global mean thermospheric densities. We use the polarity of the Y $Y$‐component (dawn to dusk) of the Interplanetary Magnetic Field (IMF) in the Geocentric Solar Equatorial (GSEQ) frame to identify the influence,
Mike Lockwood   +4 more
wiley   +1 more source

Picone's Identity and the Moving Plan Procedure

open access: yes, 1995
Positive solutions of a class of nonlinear elliptic partial differential equations are shown to be symmetric by means of the moving plane argument coupled with Spectral Theory results and Picone's Identity.
Allegretto, Walter, Siegel, David
core  

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