Results 121 to 130 of about 2,953,642 (298)

Cosmic ray environment model for Earth orbit [PDF]

open access: yes
A set of computer codes, which include the effects of the Earth's magnetic field, used to predict the cosmic ray environment (atomic numbers 1 through 28) for a spacecraft in a near-Earth orbit is described.
Edmonds, L.
core   +1 more source

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Reliability Analysis of Baremetal and FreeRTOS Applications on Microchip PolarFire SoC RISC-V Multiprocessors Using High-Energy Protons

open access: yesIEEE Access
Modern space applications are increasingly demanding reliable processing systems with high computational capabilities for missions with ambitious targets, tight budgets, and fast deployment.
Andre M. P. Mattos   +2 more
doaj   +1 more source

Compendium of Current Single Event Effects Results from NASA Goddard Space Flight Center and NASA Electronic Parts and Packaging Program [PDF]

open access: green, 2017
Martha V. O'Bryan   +10 more
openalex   +1 more source

Single-Event Effect Testing of the Linear Technology LTC6103HMS8#PBF Current Sense Amplifier [PDF]

open access: yes
The LTC6103HMS8#PBF (henceforth abbreviated as LTC6103) current sense amplifier from Linear Technology was tested for both destructive and non-destructive single-event effects (SEE) using the heavy-ion cyclotron accelerator beam at Lawrence Berkeley ...
Campola, Michael J.   +2 more
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Compiler Optimizations Impact the Reliability of the Control-Flow of Radiation-Hardened Software

open access: yesJournal of Aerospace Technology and Management, 2013
http://dx.doi.org/10.5028/jatm.v5i3.224 This paper discusses how compiler optimizations influence software reliability when the optimized application is compiled with a technique to enable the software itself to detect and correct radiation-induced ...
Ronaldo Rodrigues Ferreira   +3 more
doaj  

A Methodology to Estimate Single-Event Effects Induced by Low-Energy Protons

open access: yesEng
This work explains that the Coulomb elastic process on the nucleus is a major source of single-event effects (SEE) for protons within the energy range of 1–10 MeV.
Cleiton Marques   +6 more
doaj   +1 more source

Compendium of Current Single Event Effects for Candidate Spacecraft Electronics for NASA [PDF]

open access: yes
NASA spacecraft are subjected to a harsh space environment that includes exposure to various types of ionizing radiation. The performance of electronic devices in a space radiation environment are often limited by their susceptibility to single event ...
Berg, Melanie D.   +8 more
core   +1 more source

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