Results 111 to 120 of about 37,842 (235)
Subterranean environments contribute to three‐quarters of classified ecosystem services
Biological Reviews, Volume 101, Issue 3, Page 1582-1605, June 2026.ABSTRACT Beneath the Earth's surface lies a network of interconnected caves, voids, and systems of fissures forming in rocks of sedimentary, igneous, or metamorphic origin. Although largely inaccessible to humans, this hidden realm supports and regulates services critical to ecological health and human well‐being.
Stefano Mammola +30 more
wiley +1 more source
IEEE AccessThis study proposes a finite-time tracking control system for an unmanned aerial vehicle (UAV) in the presence of dynamic payloads and external disturbances.
Imil Hamda Imran +5 more
doaj +1 more source
Held in a story: Relatability across plates and places
Anthropology and Humanism, Volume 51, Issue 1, June 2026.Abstract This piece explores the power and ambivalence of storytelling through a dinner with Jemimah, a counseling psychologist and a trained educator with a keen interest in using storytelling as pedagogy in Northeast India. As the evening unfolds in her dining room, stories and memories are exchanged, revealing how relatability is not inherent but ...
Anna Notsu
wiley +1 more source
PID‐Like Robust Control of Non‐Minimum Phase Robotic Manipulators
International Journal of Robust and Nonlinear Control, Volume 36, Issue 8, Page 4490-4503, 25 May 2026.ABSTRACT This paper proposes an output‐feedback tracking controller for non‐minimum phase nonlinear systems with unknown uncertainties and external disturbances, where not all states are measurable, and the zero dynamics are unstable. The approach combines a backstepping‐based stabilizing state‐feedback law with a cascade extended high‐gain observer ...
Mohammad Al Saaideh +2 more
wiley +1 more source
Optimal dynamic investment policies under concave-convex adjustment costs [PDF]
Financing;Monopoly;Portfolio Management;management ...
Jørgensen, S., Kort, P.M.
core +1 more source
International Journal of Robust and Nonlinear Control, Volume 36, Issue 8, Page 4717-4728, 25 May 2026.ABSTRACT A newly developed robust control strategy based on an adaptive neural network (ANN) estimator performed in concert with adaptive super‐twisting (ASTW) control is presented. The proposed adaptive robust control algorithm is applied to a class of perturbed nonlinear systems and features a significantly decreased control gain with respect to the ...
Mohammad Javad Mirzaei +3 more
wiley +1 more source
Bioenergetic trophic trade‐offs determine mass‐dependent extinction thresholds across the Cenozoic
Ecology, Volume 107, Issue 5, May 2026.Abstract Body size constrains trophic interactions, shaping the feasibility of species' populations. Over macroevolutionary timescales, these constraints feed back to shape selection on body size and diet. We develop a bioenergetic, three‐level trophic framework—typical of terrestrial mammalian ecosystems—to explore how bioenergetic trade‐offs emerging
Justin D. Yeakel +6 more
wiley +1 more source
Generalised Kinematic Single‐Impact and Multi‐Impact Models for Rocking Structures
Earthquake Engineering &Structural Dynamics, Volume 55, Issue 6, Page 1179-1202, May 2026.ABSTRACT The rocking motion is fundamental in earthquake engineering, as it reflects the dynamic behaviour of many structural systems. However, simulating the impacts during rocking motion remains a challenging topic, as they occur in a very short time, generate high impulsive forces, cause sudden changes in velocities and result in rapid energy losses.
Georgios Vlachakis +3 more
wiley +1 more source
Synchronization problems for unidirectional feedback coupled nonlinear systems
, 2007 In this paper we consider three different synchronization problems consisting in designing a nonlinear feedback unidirectional coupling term for two (possibly chaotic) dynamical systems in order to drive the trajectories of one of them, the slave system,
Makarenkov, O., Nistri, P., Papini, D.
core