Results 81 to 90 of about 4,477,022 (227)

Adaptive Terminal Sliding Mode Control of Electromagnetic Spacecraft Formation Flying in Near-Earth Orbits

Advances in Mechanical Engineering, 2014
An adaptive terminal sliding mode control for six-degree-of-freedom electromagnetic spacecraft formation flying (EMFF) in near-Earth orbits is presented.
Jingrui Zhang, Changqin Yuan, Dongmei Jiang, Dawei Jin   +3 more
doaj   +1 more source

Intense Magnetopause Erosion at Earth During the May 2024 Solar Storm

Geophysical Research Letters, Volume 53, Issue 21, 16 November 2026.
Abstract Earth's main magnetic field forms the magnetosphere, shielding the planet from solar wind plasma. Southward interplanetary magnetic fields erode the magnetosphere, a process known as magnetopause erosion, allowing solar wind penetration close to the Earth.
Kazuhiro Yamamoto, Yoshizumi Miyoshi, Naritoshi Kitamura, Rumi Nakamura, Atsuki Shinbori, Ayako Matsuoka, Mariko Teramoto, Shoichiro Yokota, Satoshi Kasahara, Kunihiro Keika, Tomoaki Hori, Kazushi Asamura, Yoichi Kazama, Shiang‐Yu Wang, Sunny Wing‐Yee Tam, Tzu‐Fang Chang, Bo‐Jhou Wang, Chae‐Woo Jun, Iku Shinohara   +18 more
wiley   +1 more source

Consensus SE(3)-Constrained Extended Kalman Filter for Close Proximity Orbital Relative Pose Estimation

Aerospace
In this paper, a recently proposed SE(3)-constrained extended Kalman filter (EKF) is extended to formulate a strategy for relative orbit estimation in a space-based sensor network. The resulting consensus SE(3)-constrained EKF utilizes space-based sensor
S. Mathavaraj, Eric A. Butcher
doaj   +1 more source

The Influence of J2 on Formation Flying of Micro-Satellites in Low Near Equatorial Orbits

Journal of Advances in Information Technology, 2014
Taking into considerations the effect of the Earth’s oblateness parameters, particularly J2, the present work assess such influence on the formation flight of micro satellites in near equatorial low orbits. The modified Clohessy-Wiltshire equations
Harijono Djojodihardjo
doaj   +1 more source

Extracellular Vesicles for Space Biomedical Research

Journal of Extracellular Vesicles, Volume 15, Issue 11, November 2026.
Microgravity reshapes EV biogenesis and cargo selection, which brings new opportunities for longitudinal liquid‐biopsy readouts of stress and aging‐like trajectories, as well as the regenerative products in spaceflight research. ABSTRACT Extracellular vesicles (EVs) are regulated, information‐rich nanovesicles that reflect aspects of parent‐cell state,
Samantha Ali, Brian I. Molina Diaz, Pei Zhuang, Zachary Greenberg, Ye Zhang, Jeffrey Richards, Danny Carlos, Stefanie Countryman, Christiaan Leeuwenburgh, Luke P. Lee, Mei He   +10 more
wiley   +1 more source

Reduced attitude synchronization of rigid spacecraft with guaranteed performance

Franklin Open
This paper addresses the problem of reduced attitude synchronization, specifically focusing on the coordination of pointing directions between two spacecraft modeled as rigid bodies.
Geethu I., Rakesh R. Warier
doaj   +1 more source

Embedded Interactions and Selective Disclosure: Network Effects on Conversations aboard Skylab

Symbolic Interaction, Volume 49, Issue 4, Page 1031-1056, November 2026.
How do absent others influence our interactions? We argue in this paper that interactions are embedded within networks formed by chains of specific relationships between known third parties. The anticipation of future interactions with external others conditions our interpretation of the current situation and affects our behavior in the interaction. We
Michael Schultz, Leslie DeChurch, Noshir Contractor   +2 more
wiley   +1 more source

Solar sail formation flying for deep-space remote sensing [PDF]

, 2009
In this paper we consider how 'near' term solar sails can be used in formation above the ecliptic plane to provide platforms for accurate and continuous remote sensing of the polar regions of the Earth.
Biggs, James, BIGGS, JAMES DOUGLAS, McInnes, Colin, Biggs, James D., McInnes, Colin R., Colin R. McInnes, James D. Biggs   +6 more
core   +1 more source

Manoeuvre Planning Architecture for the Optimisation of Spacecraft Formation Flying Reconfiguration Manoeuvres [PDF]

, 2010
Formation flying of multiple spacecraft collaborating toward the same goal is fast becoming a reality for space mission designers. Often the missions require the spacecraft to perform translational manoeuvres relative to each other to achieve some ...
Burgon, Ross
core   +3 more sources

Low magnetic disturbance analysis and testing of a novel proof mass type for gravitational reference sensor system

Advances in Mechanical Engineering, 2019
The proof mass used for gravitational-wave or Earth-gravity-field detection is usually comprised of materials such as gold–platinum alloys, which have a high density and low magnetic susceptibility, in order to reduce the magnetic disturbance produced by
Zeyang Zhao, Zhaokui Wang, Yulin Zhang
doaj   +1 more source