Results 61 to 70 of about 12,326 (180)
Microconcentrator Solar Panel Architectures Achieving High Specific Power for Deep Space Missions
Solar RRL, Volume 10, Issue 4, 26 February 2026.Microconcentrator photovoltaics (microCPV) are emerging as a promising solution for powering spacecraft in deep space, where conventional solar arrays are challenged by extremely low‐intensity, low‐temperature conditions. This work presents the design, development, and characterization of two optical architectures aiming at maximizing specific power (W/
Guido Vallerotto +8 more
wiley +1 more source
Innovative Approaches to Modelling and Forecasting in Fisheries: A Critical Review
Aquaculture, Fish and Fisheries, Volume 6, Issue 1, February 2026.ABSTRACT Fisheries management increasingly demands robust forecasting tools to address growing environmental variability, anthropogenic pressures and complex ecological dynamics. This review systematically examines innovative modelling and forecasting approaches in fisheries, focusing on their descriptions, applications, strengths and limitations and ...
Mohammad Abu Baker Siddique +5 more
wiley +1 more source
Beyond Expansion IV: Traces of Thin Semigroups
Discrete Analysis, 2018 Beyond Expansion IV: Traces of Thin Semigroups, Discrete Analysis 2018:6, 27 pp. This is the fourth in a series of papers by Bourgain and Kontorovich that study the arithmetic properties of groups and semigroups of 2-by-2 integer matrices.
Jean Bourgain, Alex Kontorovich
doaj +1 more source
A Note Concerning Fermat Numbers [PDF]
, 2021 The Fermat’s Numbers are clearly all of the form 6n + 5, with one exception to this rule. This paper presents a general formula, showing the structure of Fermat numbers.
openaire +1 more source
Elastic Fast Marching Learning from Demonstration
Advanced Intelligent Systems, Volume 8, Issue 2, February 2026.This article presents Elastic Fast Marching Learning (EFML), a novel approach for learning from demonstration that combines velocity‐based planning with elastic optimization. EFML enables smooth, precise, and adaptable robot trajectories in both position and orientation spaces.
Adrian Prados +3 more
wiley +1 more source
THE ALGORITHM AND PROGRAM OF M-MATRICES SEARCH AND STUDY [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2013 The algorithm and software for search and study of orthogonal bases matrices – minimax matrices (M-matrix) are considered. The algorithm scheme is shown, comments on calculation blocks are given, and interface of the MMatrix software system developed ...
Y. N. Balonin, M. B. Sergeev
doaj
Nearly 180° Field‐of‐View Metalens for Miniaturized Imaging Systems
Laser &Photonics Reviews, Volume 20, Issue 3, 5 February 2026.A compact, single‐layer metalens is developed with an ultra‐wide field of view of ≈180 degrees. Utilizing a unique quadratic phase profile, this metalens overcomes traditional issues like axial and color dispersion. It operates across red, green, and blue wavelengths with non‐polarized light, promising enhanced imaging capabilities for integration into
Azhar Javed Satti +9 more
wiley +1 more source
On the Electromagnetic Energy Flow Along Geodesics
Radio Science, Volume 61, Issue 1, January 2026.Abstract We present a field‐theoretic framework for modeling electromagnetic energy propagation in heterogeneous media by introducing the concept of electromagnetic geodesics. Unlike traditional ray optics, which assumes either a straight‐line propagation or a simple bending in refractive media, our approach formulates wave propagation as geodetic ...
Jacob T. Fokkema, Peter M. van den Berg
wiley +1 more source
The modular automorphisms of quotient modular curves
Mathematika, Volume 72, Issue 1, January 2026.Abstract We obtain the modular automorphism group of any quotient modular curve of level N$N$, with 4,9∤N$4,9\nmid N$. In particular, we obtain some unexpected automorphisms of order 3 that appear for the quotient modular curves when the Atkin–Lehner involution w25$w_{25}$ belongs to the quotient modular group. We also prove that such automorphisms are
Francesc Bars, Tarun Dalal
wiley +1 more source
International Journal of Intelligent Systems, Volume 2026, Issue 1, 2026.This work introduces a multiagent deep reinforcement learning (MADRL) framework for energy harvesting (EH) in unmanned aerial vehicle (UAV) networks aided by reconfigurable intelligent surfaces (RIS). The core goal is to maximize quantities of harvested energy subject to quality of service (QoS) constraints in dynamic wireless setups.
Syed Mohsin Bokhari +5 more
wiley +1 more source