Results 21 to 30 of about 1,294,504 (302)

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

open access: yesFrontiers 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   +5 more
doaj   +1 more source

Aspergillus niger Spores Are Highly Resistant to Space Radiation [PDF]

open access: yes, 2020
The filamentous fungus Aspergillus niger is one of the main contaminants of the International Space Station (ISS). It forms highly pigmented, airborne spores that have thick cell walls and low metabolic activity, enabling them to withstand harsh ...
Cortesão, Marta   +6 more
core   +2 more sources

Secondary light-ion transport from intermediate-energy hadron experiments

open access: yesEPJ 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.   +10 more
doaj   +1 more source

Wormholes supported by pure ghost radiation [PDF]

open access: yes, 2002
Traversible wormhole space-times are found as static, spherically symmetric solutions to the Einstein equations with ingoing and outgoing pure ghost radiation, i.e. pure radiation with negative energy density.
Hayward, Sean A.
core   +2 more sources

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

open access: yesEPJ 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.   +10 more
doaj   +1 more source

Biological Protection in Deep Space Missions [PDF]

open access: yesJournal of Biomedical Physics and Engineering, 2021
During deep space missions, astronauts are exposed to highly ionizing radiation, incl. neutrons, protons and heavy ions from galactic cosmic rays (GCR), solar wind (SW) and solar energetic particles (SEP).
Lembit Sihver   +1 more
doaj   +1 more source

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

open access: yesFrontiers 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

Space Radiation Measurement on the Polar Route onboard the Korean Commercial Flights [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2010
This study was performed by the policy research project of Ministry of Land, Transport and Maritime Affairs, which title is “Developing safety standards and management of space radiation on the polar route”.
Junga Hwang   +5 more
doaj   +1 more source

Gravitational Thermodynamics of Space-time Foam in One-loop Approximation [PDF]

open access: yes, 1999
We show from one-loop quantum gravity and statistical thermodynamics that the thermodynamics of quantum foam in flat space-time and Schwarzschild space-time is exactly the same as that of Hawking-Unruh radiation in thermal equilibrium. This means we show
Coleman S.   +5 more
core   +3 more sources

Modeling of Space Radiation Exposure Estimation Program for Pilots, Crew and Passengers on Commercial Flights [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2014
There has been a rapid increase of the concern on the space radiation effect on pilots, crew and passengers at the commercial aircraft altitude (~ 10 km) recently. It is because domestic airline companies, Korean Air and Asiana Airlines have just begun
Junga Hwang   +5 more
doaj   +1 more source

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