Results 161 to 170 of about 31,489 (272)

Predicting Dual‐Satellite Ionospheric Radial Currents From Single‐Satellite Observations With a BiLSTM Model

open access: yesSpace Weather, Volume 24, Issue 1, January 2026.
Abstract Ionospheric radial currents (IRC) can be derived using two methodologies: (a) the single‐satellite approach: Single‐IRC is deduced from magnetic field data of a single satellite (Swarm‐A); (b) the dual‐satellite approach: Dual‐IRC is calculated by coordinated magnetic field measurements of a pair of satellites (Swarm‐A and ‐C).
Hao Xia   +3 more
wiley   +1 more source

Task‐Specific Optimal Trajectory Planning of Dual‐arm Space Robot Based on Convex Optimization

open access: yesIET Control Theory &Applications, Volume 20, Issue 1, January/December 2026.
This paper presents a robust, task‐specific optimal trajectory planning framework for dual‐arm space robots. The method unifies two key problems—point‐to‐point grasping and continuous trajectory tracking—within an efficient optimization framework. Extensive comparative simulations on a highly redundant 14‐degree‐of‐freedom (14‐DoF) dual‐arm space robot
Run Li, Fan Wu, Ang Li, Ming Liu
wiley   +1 more source

Impact of Climate Change on Labor Market Dynamics: Evidence From Kazakhstan

open access: yesAgricultural Economics, Volume 57, Issue 1, January 2026.
ABSTRACT This paper examines how drought shocks affect formal employment in Kazakhstan. We combine remote sensing data on drought severity—the Palmer Drought Severity Index (PDSI)—with quarterly firm‐level administrative employment records from 2012 to 2022.
Dinara Alpysbayeva   +3 more
wiley   +1 more source

Modeling enstatite chondrites: Reduced rocks with a pinch of oxidized material (affected by varying H2O(g)) derived from planetesimals shocked during the epoch of giant–planet migration

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 1, Page 122-139, January 2026.
Abstract The O‐, N‐, Mo‐, Ru‐, Os‐, Cr‐, Ti‐, Ni‐, Fe‐, Nd‐, Ca‐, Zn‐, Sr‐, and Mg‐isotopic compositions of enstatite chondrites are essentially identical to those of the Earth and Moon. These correspondences suggest enstatite chondrites formed at ≈1 AU as the only known chondrite groups that accreted in the vicinity of a major planet. Bulk Earth has a
Alan E. Rubin
wiley   +1 more source

Hierarchical Cooperative Multitarget Allocation Strategy of Multiple Spacecrafts

open access: yesInternational Journal of Aerospace Engineering, Volume 2026, Issue 1, 2026.
In the future space missions, multispacecraft collaboration has become increasingly significant due to the inherent limitations of a single spacecraft in executing complex tasks. To address the coordination challenges associated with multispacecraft systems, a novel hierarchical mission planning framework is proposed in this paper.
Mengping Zhu   +4 more
wiley   +1 more source

Artificial spacecraft in hybrid simulations of the quasi-parallel Earth's bow shock: analysis of time series versus spatial profiles and a separation strategy for Cluster

open access: yesAnnales Geophysicae
We construct artificial "software" spacecraft consisting of magnetometers and 3D thermal and energetic ion detectors. Four such spacecraft are "flown" through a 1D simulation of a quasi-parallel shock.
J. Giacalone, S. J. Schwartz, D. Burgess
doaj  

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