Results 111 to 120 of about 81,251 (238)

Incorporating soil biological and functional attributes to advance ecological restoration

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 3, Page 735-746, May 2026.
Earth is currently experiencing a mass extinction crisis, predominantly driven by anthropogenic activities, with land use change causing widespread loss and degradation of native ecosystems and indigenous species. There is an urgent need to halt this trend and restore degraded habitat to preserve biodiversity and protect threatened plants and animals ...
Uffe N. Nielsen   +3 more
wiley   +1 more source

The Rayleigh-Ritz method still competitive

open access: yesJournal of Computational and Applied Mathematics, 1994
Following his earlier work [Numer. Math. 54, 639-654 (1989; Zbl 0645.65027)], the author considers the computation of two-sided bounds for the eigenvalues of the one-dimensional Schrödinger operator with various potentials, using a finite element method with high-order B- splines.
openaire   +2 more sources

“There is a Place for Us Here”: Exploring Sex, Gender, Reproduction, Sexual Behavior, and Orientation Narratives Supporting Students With Queer Genders in Biology Courses

open access: yesJournal of Research in Science Teaching, Volume 63, Issue 4-5, Page 332-351, May 2026.
ABSTRACT Queer undergraduates describe a climate in STEM fields and classrooms that is both hostile to and silent on queer identities, leading to experiences of social exclusion, devaluation as a scientist, and discrimination. In the few studies that have specifically focused on trans and non‐binary undergraduates (i.e., students with queer genders ...
Sarah L. Eddy   +8 more
wiley   +1 more source

Acoustic radiation characteristics of FG cylindrical shell based on Jacobi-Ritz modified boundary element method

open access: yesJournal of Low Frequency Noise, Vibration and Active Control
In this paper, a semi-analytic method based on Jacobi-Ritz modified boundary element is proposed to solve the acoustic radiation response of functionally graded cylindrical shell.
Jiajun Zheng   +5 more
doaj   +1 more source

Free and Forced Vibration Analysis of Airtight Cylindrical Vessels with Doubly Curved Shells of Revolution by Using Jacobi-Ritz Method

open access: yesShock and Vibration, 2017
This paper presents free and forced vibration analysis of airtight cylindrical vessels consisting of elliptical, paraboloidal, and cylindrical shells by using Jacobi-Ritz Method.
Fuzhen Pang   +4 more
doaj   +1 more source

Fault Volume Digital Twin to Reproduce the Full Slip Spectrum, Scaling, and Statistical Laws

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Seismological and geodetic observations of fault zones reveal diverse slip dynamics, scaling, and statistical laws. Existing mechanisms explain some but not all of these behaviors. We show that incorporating an off‐fault damage zone—characterized by distributed fractures surrounding a main fault—can reproduce many key features observed in ...
M. Almakari   +9 more
wiley   +1 more source

Structural-Thermal-Optical Program (STOP) [PDF]

open access: yes
A structural thermal optical computer program is developed which uses a finite element approach and applies the Ritz method for solving heat transfer problems. Temperatures are represented at the vertices of each element and the displacements which yield
Lee, H. P.
core   +1 more source

Cellular buckling in I-section struts

open access: yes, 2013
An analytical model that describes the interactive buckling of a thin-walled I-section strut under pure compression based on variational principles is presented.
Bai, Li, Wadee, M. Ahmer
core   +1 more source

Genetic Variation in Chemical Defence Affects Protection of an Herbivorous Insect Against Predation

open access: yesMolecular Ecology, Volume 35, Issue 9, May 2026.
ABSTRACT Genetic variation contributes to intraspecific differences in the chemical defence in many insect species, yet the underlying genetic mechanisms remain poorly understood. The horseradish flea beetle, Phyllotreta armoraciae, sequesters glucosinolates from its horseradish host plant and activates them using endogenous myrosinase enzymes.
Johannes Körnig   +9 more
wiley   +1 more source

A study of internal and distributed damping for vibrating turbomachiner blades [PDF]

open access: yes
Internal and distributed damping as possible methods for reducing the vibration response of turbomachine blades and theoretical methods for analyzing damped vibration were studied.
Leissa, A. W.
core   +1 more source

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