Results 61 to 70 of about 19,619 (213)

An Atomic‐Level Bimetallic MOF Platform Overcoming the Stability‐Performance Tradeoff for Laser Propulsion

Advanced Materials, Volume 38, Issue 20, 7 April 2026.
This work introduces an atomic‐level engineered bimetallic MOF Platform that resolves the inherent trade‐off between environmental stability and propulsion efficiency. By integrating robust Fe‐O bonds for hydrolysis resistance and enabling d‐orbital charge transfer (Fe3+→Cu2+) for enhanced photothermal conversion, the design achieves a highly durable ...
Senlin Rao, Gang Tang, Shizhuo Zhang, Gary J. Cheng   +3 more
wiley   +1 more source

Air-Gap Reduction and Antenna Positioning of an X-Band Bow Tie Slot Antenna on 2U CubeSats

Journal of Applied Engineering and Technological Science
In this research work, a small size and wide-band Bow Tie slot antenna (BTSA) is proposed and optimized for use on an unlimited lifetime small-sized CubeSats at X-band.
Boutaina Benhmimou, Fouad Omari, Nancy Gupta, Khalid El Khadiri, Rachid Ahl Laamara, Mohamed El Bakkali   +5 more
doaj   +1 more source

Characterizing Low-Energy Charged Particles in the Magnetosphere with the LEM CubeSat Spectrometer Project: Detector Concept and Hardware Characterisation

Universe, 2023
An accurate flux measurement of low-energy charged particles trapped in the magnetosphere is necessary for space weather characterization and to study the coupling between the lithosphere and magnetosphere, which allows for the investigation of the ...
Riccardo Nicolaidis, Francesco Nozzoli, Giancarlo Pepponi, Pierluigi Bellutti, Evgeny Demenev, Francesco Maria Follega, Roberto Iuppa, Veronica Vilona   +7 more
doaj   +1 more source

Through-life modelling of nano-satellite power system dynamics [PDF]

, 2013
This paper presents a multi-fidelity approach to finding optimal, mission-specific power system configurations for CubeSats. The methodology begins with propagation of the orbit elements over the mission lifetime, via a continuous-time model, accounting ...
Greenland, Stephen, Lowe, Christopher John, Macdonald, Malcolm   +2 more
core  

Mechanisms of Surface Meltwater Ponding and Drainage on the Greenland Ice Sheet Revealed Using SkySat Imagery and Deep Learning

AGU Advances, Volume 7, Issue 2, April 2026.
Abstract Surface meltwater impacts Greenland Ice Sheet mass balance indirectly by reducing albedo and promoting hydrofracture. However, fully understanding both processes requires accurate mapping of small‐scale features such as ponds, channels, and moulins that govern meltwater formation and drainage. Here we investigate surface water dynamics at high
J. C. Ryan, R. T. Datta, S. W. Cooley
wiley   +1 more source

The alternative of CubeSat-based advanced infrared and microwave sounders for high impact weather forecasting

Atmospheric and Oceanic Science Letters, 2019
The advanced infrared (IR) and microwave (MW) sounding systems have been providing atmospheric sounding information critical for nowcasting and improving weather forecasts through data assimilation in numerical weather prediction.
Zhenglong LI, Jun LI, Timothy J. SCHMIT, Pei WANG, Agnes LIM, Jinlong LI, Fredrick W. NAGLE, Wenguang BAI, Jason A. OTKIN, Robert ATLAS, Ross N. HOFFMAN, Sid-Ahmed BOUKABARA, Tong ZHU, William J. BLACKWELL, Thomas S. PAGANO   +14 more
doaj   +1 more source

Evidence for a Localized Burst of Relativistic Electrons Produced in Earth's Plasma Sheet During a Substorm

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Earth's magnetotail and its plasma sheet are highly dynamic, influenced by both the solar wind and the inner magnetosphere. Periodically, energy is explosively released in the magnetotail during substorms. However, the extent to which electrons are accelerated in the magnetotail remains an open question, with recent observations revealing ...
M. Shumko, D. L. Turner, A. Y. Ukhorskiy, I. J. Cohen, G. K. Stephens, A. Artemyev, X. Zhang, C. Wilkins, E. Tsai, C. Gabrielse, S. Raptis, M. Sitnov, V. Angelopoulos   +12 more
wiley   +1 more source

Flux Footprints: A Critical Link to Bridge Eddy‐Covariance Measurements With Models, Remote Sensing, and Other Observations

Global Change Biology, Volume 32, Issue 4, April 2026.
Global networks of eddy‐covariance flux towers are pivotal and widely used to understand carbon and water cycling of terrestrial ecosystems. Flux footprints, the dynamic area contributing to the measured fluxes, have often been ignored or treated ambiguously, thereby remaining a primary source of uncertainty when integrating flux tower data with models,
Housen Chu, Stefan Metzger, Zutao Ouyang, Anne Griebel, Koong Yi, David Durden, Sebastian Wolf, Kuno Kasak, Camilo Rey‐Sanchez, Leila Constanza Hernandez Rodriguez, Patty Oikawa, Nicola Falco, Benjamin R. K. Runkle, Arman Ahmadi, Jaclyn Matthes   +14 more
wiley   +1 more source

Design and Mechanical Analysis of the Launch Separation System for the 6U Cubesat under Vibrational Loads of the Launcher [PDF]

علوم، فناوری و کاربردهای فضایی
Given the increasing prevalence of CubeSats due to their low research and development costs, there is a need for a reliable standard separation system.
Amirhosein Rahbar, Seyed Mohammad Navid Ghoreishi, Yaser Seddigh   +2 more
doaj   +1 more source

Terrestrial ages of meteorites from the Atacama Desert (Chile) and insights into the past meteorite flux to Earth

Meteoritics &Planetary Science, Volume 61, Issue 4, Page 644-663, April 2026.
Abstract The Atacama Desert in Chile is characterized by its high meteorite density and old meteorite terrestrial ages. In this work, we present new terrestrial ages derived from measurements of the concentration of cosmogenic 36Cl in the metal fraction of 51 ordinary chondrites collected over a 6.8 km2 area located in the Catalina Dense Collection ...
Carine Sadaka, Jérôme Gattacceca, Florian Dumas, Régis Braucher, ASTER Team, Ingo Leya, Mohammad Tauseef, Pierre‐Henri Blard, David Bekaert, Evelyn Füri, Laurent Zimmermann, Anthony Lagain, Hadrien A. R. Devillepoix, Matthieu Gounelle   +13 more
wiley   +1 more source