Results 131 to 140 of about 31,489 (272)

Self‐Driving Microscopes: AI Meets Super‐Resolution Microscopy

open access: yesSmall Methods, Volume 10, Issue 2, 22 January 2026.
This review examines the use of machine learning to automate super‐resolution optical microscopy, enabling the microscope to autonomously make decisions on what, when, and how to image. By eliminating the need for human intervention, this approach has the potential to enhance the versatility and accessibility of super‐resolution microscopy.
Edward N. Ward   +3 more
wiley   +1 more source

Oxygen and hydrogen ion abundance in the near-Earth magnetosphere: Statistical results on the response to the geomagnetic and solar wind activity conditions

open access: yes, 2012
The composition of ions plays a crucial role for the fundamental plasma properties in the terrestrial magnetosphere. We investigate the oxygen-to-hydrogen ratio in the near-Earth magnetosphere from -10 RE274 keV O+ ion intensities, relative to the ...
Daly, Patrick W.   +6 more
core   +1 more source

Multi‐Species Energy‐Banded Ions in the Ionosphere During the 21 January 2005 Magnetic Storm: Low‐Altitude Edge of the Warm Plasma Cloak

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract During the 21–22 January 2005 magnetic storm, the FAST satellite observed warm (< few keV) ions in discrete energy bands on the dayside at ∼3,000 km altitude for more than 6.5 hr. We suggest that the ionospheric energy‐banded ions represent the low‐altitude edge of the warm plasma cloak observed simultaneously by magnetospheric satellites ...
J. U. Kozyra   +14 more
wiley   +1 more source

Accelerometer Data Transplant for Future Satellite Gravimetry

open access: yesEarth and Space Science, Volume 13, Issue 1, January 2026.
Abstract Accurate monitoring of the Earth's gravity field is crucial for understanding mass redistribution processes related to climate change, hydrology, and geodynamics. The Gravity Recovery and Climate Experiment (GRACE) and its successor, GRACE Follow‐On (GRACE‐FO), have provided invaluable satellite gravimetry data through low‐low satellite‐to ...
Mohsen Romeshkani   +4 more
wiley   +1 more source

Preliminary space mission design under uncertainty [PDF]

open access: yes, 2008
This paper proposes a way to model uncertainties and to introduce them explicitly in the design process of a preliminary space mission. Traditionally, a system margin approach is used in order to take them into account.
Croisard, N.   +3 more
core  

The Study of the Pioneer Anomaly: New Data and Objectives for New Investigation

open access: yes, 2005
Radiometric tracking data from Pioneer 10 and 11 spacecraft has consistently indicated the presence of a small, anomalous, Doppler frequency drift, uniformly changing with a rate of ~6 x 10^{-9} Hz/s; the drift can be interpreted as a constant sunward ...
Asmar S. W.   +11 more
core   +1 more source

The THEMIS Control Network of Mars

open access: yesEarth and Space Science, Volume 13, Issue 1, January 2026.
Abstract The accurate co‐registration of geospatial data is necessary to answer questions that cross‐cut disciplines and are key to understanding fundamental questions about our Solar System. To address this need and provide an updated product for Mars that is tied to a common reference frame, we have photogrammetrically controlled Thermal Emission ...
R. L. Fergason, L. Weller, M. T. Bland
wiley   +1 more source

Evolution of Ionospheric Ion Upflow Flux During the April 2023 Geomagnetic Storm

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract We study the impact of the evolving magnetosphere‐ionosphere‐thermosphere system on upward ion fluxes during the 23–24 April 2023 geomagnetic storm. This storm has a “double‐dip” structure where two southward IMF Bz ${\mathrm{B}}_{z}$ periods cause two dips in the SYM‐H index.
Grace Kwon   +4 more
wiley   +1 more source

High altitude ion heating observed by the Cluster spacecraft

open access: yes, 2011
This thesis deals with heating of outowing oxygen ions at high altitude above the polar cap using data from the Cluster spacecraft. oInospheric plasma may flow up from the ionosphere but at velocities which are low enough that the ions are still gravitationally bound. For the ions to overcome gravity, further acceleration is needed.
openaire   +2 more sources

Home - About - Disclaimer - Privacy