Results 21 to 30 of about 5,166,308 (289)

Deep Space Observations of Terrestrial Glitter

Earth and Space Science, 2021
Deep space climate observatory (DSCOVR) spacecraft drifts about the Lagrangian point ≈1.4–1.6 × 106 km from Earth, where its Earth polychromatic imaging camera (EPIC) observes the sun‐lit face of the Earth every 1 to 2 hours.
Alexander Kostinski, Alexander Marshak, Tamás Várnai   +2 more
doaj   +1 more source

Overexpression of catalase in mitochondria mitigates changes in hippocampal cytokine expression following simulated microgravity and isolation

npj Microgravity, 2021
Isolation on Earth can alter physiology and signaling of organs systems, including the central nervous system. Although not in complete solitude, astronauts operate in an isolated environment during spaceflight.
Linda Rubinstein, Ann-Sofie Schreurs, Samantha M. Torres, Sonette Steczina, Moniece G. Lowe, Frederico Kiffer, Antiño R. Allen, April E. Ronca, Marianne B. Sowa, Ruth K. Globus, Candice G. T. Tahimic   +10 more
doaj   +1 more source

Immediate effects of acute Mars mission equivalent doses of SEP and GCR radiation on the murine gastrointestinal system-protective effects of curcumin-loaded nanolipoprotein particles (cNLPs)

Frontiers in Astronomy and Space Sciences, 2023
Introduction: Missions beyond low Earth orbit (LEO) will expose astronauts to ionizing radiation (IR) in the form of solar energetic particles (SEP) and galactic cosmic rays (GCR) including high atomic number and energy (HZE) nuclei. The gastrointestinal
Jonathan Diaz, Bradford M. Kuhlman, Nicholas P. Edenhoffer, Angela C. Evans, Angela C. Evans, Kelly A. Martin, Peter Guida, Adam Rusek, Anthony Atala, Matthew A. Coleman, Matthew A. Coleman, Paul F. Wilson, Paul F. Wilson, Graça Almeida-Porada, Christopher D. Porada   +14 more
doaj   +1 more source

Study of Modeling Parameters in Determination of TID, DD, and SEE Radiation Damages for Satellite in LEO Orbit Using OMERE Software [PDF]

فصلنامه علوم و فناوری فضایی, 2019
One of the important issues to be considered in the design of space systems is the attention to the difference between the terrestrial and space environment. This issue changes the design and affects all subsystems of space systems.
Hamideh Daneshvar, Masoud Khoshsima, Abolfazl Dayyani   +2 more
doaj   +1 more source

Cultivation of the Dematiaceous Fungus Cladosporium sphaerospermum Aboard the International Space Station and Effects of Ionizing Radiation

Frontiers in Microbiology, 2022
In Space, cosmic radiation is a strong, ubiquitous form of energy with constant flux, and the ability to harness it could greatly enhance the energy-autonomy of expeditions across the solar system.
Nils J. H. Averesch, Nils J. H. Averesch, Graham K. Shunk, Graham K. Shunk, Christoph Kern, Christoph Kern   +5 more
doaj   +1 more source

Modelling the outer radiation belt as a complex system in a self-organised critical state [PDF]

, 2005
The dynamic behaviour of the outer electron radiation belt makes this area of geo-space a candidate for the concept of self-organized criticality. It is shown here that frequency distributions of measured outer electron radiation belt data are well ...
Crosby, N. B., Iles, R. H. A., Coates, A.J., Coates, AJ, Crosby, N.B., Iles, RHA, Meredith, N. P., Iles, R.H.A., Crosby, NB, Meredith, NP, Coates, A. J., Meredith, N.P.   +11 more
core   +1 more source

Secondary light-ion transport from intermediate-energy hadron experiments

EPJ Web of Conferences, 2017
The aim of this research is to produce double differential thick target yields, angular distributions and integrated yields for the inclusive production of neutrons, protons, deuterons, tritons, 3He, and 4He from intermediate heavy-ion interactions on ...
Srikrishna Ashwin P., Castellanos Luis A., McGirl Natalie A., Heilbronn Lawrence H., Tessas Chiara La, Rusek Adam, Sivertz Michael, Blattnig Steve, Clowdsley Martha, Slaba Tony, Zeitlin Cary   +10 more
doaj   +1 more source

Coupled experiment/simulation approach for the design of radiation-hardened rare-earth doped optical fibers and amplifiers [PDF]

, 2011
We developed an approach to design radiation-hardened rare earth -doped fibers and amplifiers. This methodology combines testing experiments on these devices with particle swarm optimization (PSO) calculations.
F. Prudenzano, Mescia, L, Vivona, M., Girard, S, Boukenter, Aziz, A. Boukenter, Goiffon, V, Cannas, M., V. Goiffon, Mescia, Luciano, Boukenter, A, L. Mescia, Vivona, Marilena, Mescia, L., R. Boscaino, Cadier, B., P. Paillet, Paillet, P., Y. Ouerdane, Boukenter, A., Paillet, P, Paillet, Philippe, Marcandella, C, Cadier, Benoît, S. Girard, A. Laurent, Laurent, A, Robin, T, C. Marcandella, Goiffon, Vincent, Cadier, B, Ouerdane, Y., Ouerdane, Y, Girard, Sylvain, Prudenzano F, Robin, Thierry, F. Robin, Prudenzano, F, Laurent, Arnaud, Boscaino, Roberto, T. Robin, Robin, T., B. Cadier, Marcandella, C., Goiffon, V., Cannas, Marco, M. Cannas, Prudenzano, F., Boscaino, R., Prudenzano, Francesco, Ouerdane, Youcef, M. Vivona, Girard, Sébastien, Marcandella, Claude, Laurent, A.   +54 more
core   +1 more source

Light Ion Yields from Bombardment of Thick Targets by Protons, Helium-4 and Iron-56

EPJ Web of Conferences, 2017
In March 2016 accelerator-based experiments colliding protons (0.4 and 0.8 GeV), helium (0.4 AGeV) and iron (0.4 and 0.8 AGeV) on thick aluminum targets with surface densities of 20, 40, and 60 g/cm2 were performed at the National Aeronautics and Space ...
Castellanos Luis A., McGirl Natalie A., Srikrishna Ashwin P., Heilbronn Lawrence H., Tessa Chiara La, Rusek Adam, Sivertz Michael, Blattnig Steve, Clowdsley Martha, Slaba Tony, Zeitlin Cary   +10 more
doaj   +1 more source

The Role of Nuclear Fragmentation in Particle Therapy and Space Radiation Protection

Frontiers in Oncology, 2016
The transport of so-called HZE particles (those having high charge, Z, and energy, E) through matter is crucially important both in space radiation protection and in the clinical setting where heavy ions are used for cancer treatment.
Cary eZeitlin, Chiara eLa Tessa
doaj   +1 more source