Scientists have long known of the potential risk from cosmic rays and other aspects of space weather, such as streams of protons from the Sun, to airline electronic systems, passengers, and crews. It has not been feasible to quantify this risk, however, as systematic data are lacking on the actual amount of rays and the charged particles and neutrons they create in Earths atmosphere that are encountered during typical flights. Researchers have now begun collecting that information, thanks to a newly developed instrument, the Low Linear-Energy-Transfer Radiation Spectrometer (LoLRS).
The need to know the precise level of cosmic and solar radiation along air routes has become more acute, as recent generations of commercial aircraft use "fly-by-wire" control systems, managed by on-board computers, which are subject to damage by high radiation levels. Future aircraft will employ even more sensitive technologies, and will therefore be more susceptible to damage.
"This substantially increases the need to improve the definition of the atmospheric radiation field as a function of location and time, and to reduce the significant uncertainties associated with present day predictions," says Epaminondas G. Stassinopoulos of NASAs Goddard Space Flight Center, lead researcher of the project. Their report is one of the first papers published in the American Geophysical Unions new journal, Space Weather.
A helping (Sens)Hand
11.04.2018 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO
Study sets new distance record for medical drone transport
13.09.2017 | Johns Hopkins Medicine
Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.
Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...
The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.
Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.
An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.
Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...
Light detection and control lies at the heart of many modern device applications, such as smartphone cameras. Using graphene as a light-sensitive material for...
Water molecules exist in two different forms with almost identical physical properties. For the first time, researchers have succeeded in separating the two forms to show that they can exhibit different chemical reactivities. These results were reported by researchers from the University of Basel and their colleagues in Hamburg in the scientific journal Nature Communications.
From a chemical perspective, water is a molecule in which a single oxygen atom is linked to two hydrogen atoms. It is less well known that water exists in two...
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