Results 41 to 50 of about 1,152,571 (289)

Eliminating Radiation Belts

, 2021
The “radiation belt remediation” phenomenon was observed naturally when lighting created a ‘safe zone’ in the radiation belt, motivating scientists to look for artificial ways to produce a similar ‘safe zone’ on a bigger scale to better protect space ...
Maringa, Mairiam
core   +1 more source

Distribution of Seed Electron Phase Space Density Minima in Earth's Radiation Belts

Geophysical Research Letters
We conducted a statistical analysis of local phase space density (PSD) minima across a wide energy range (∼20 keVs to ∼10 MeV), using observations from the Van Allen Probes and the Geostationary Operational Environmental Satellite.
A. Y. Drozdov, H. J. Allison, A. A. Saikin, Q. Schiller, D. Wang   +4 more
doaj   +1 more source

Forecasting the Earth’s radiation belts and modelling solar energetic particle events: Recent results from SPACECAST

Journal of Space Weather and Space Climate, 2013
High-energy charged particles in the van Allen radiation belts and in solar energetic particle events can damage satellites on orbit leading to malfunctions and loss of satellite service. Here we describe some recent results from the SPACECAST project on
Poedts Stefaan, Maget Vincent, Sicard Angelica, Boscher Daniel, Amariutei Olga A., Ganushkina Natalia Y., Afanasiev Alexandr, Vainio Rami, Koskinen Hannu, Meredith Nigel P., Glauert Sarah A., Horne Richard B., Jacobs Carla, Sanahuja Blai, Aran Angels, Heynderickx Daniel, Pitchford David   +16 more
doaj   +1 more source

Foam Injection Molded Stereocomplex PLA: Processing, Thermal Behavior and Foam Structure

Journal of Applied Polymer Science, EarlyView.
The processing of stereocomplex poly(lactic acid) (sc‐PLA) via continuous compounding followed by thermoplastic foam injection molding is investigated. A controlled two‐stage cooling strategy effectively promotes sc‐dominated crystallization of the granulates.
Hendrik Becker, Roman Rinberg, Martin Schneebauer, Tobias Hartmann, Lothar Kroll   +4 more
wiley   +1 more source

Dependence of Energetic Electron Precipitation on the Geomagnetic Index Kp and Electron Energy [PDF]

Journal of Astronomy and Space Sciences, 2013
It has long been known that the magnetospheric particles can precipitate into the atmosphere of the Earth. In this paper we examine such precipitation of energetic electrons using the data obtained from low-altitude polar orbiting satellite ...
Mi-Young Park, Dae-Young Lee, Dae-Kyu Shin, Jung-Hee Cho, Eun-Hee Lee   +4 more
doaj   +1 more source

Resolving the biome debate: ecological and palaeo‐data concur that the extensive tree‐limited grassy biomes of central and north‐western Madagascar are largely anthropogenic

Biological Reviews, EarlyView.
ABSTRACT For millennia, human activities have transformed ecosystems globally. Determining which landscapes are predominantly anthropogenic is crucial to conservation and habitat restoration. Madagascar, a critically‐threatened biodiversity hotspot, is a prominent example.
Grant S. Joseph, Sean Hixon, Colleen L. Seymour, Laurie R. Godfrey, Miguel Pedrono, Karen E. Samonds, Andrinajoro R. Rakotoarivelo, Brooke E. Crowley   +7 more
wiley   +1 more source

Development of a Mechanically Regenerating Desublimator for Freeze‐Drying Systems in the Food Industry

Chemie Ingenieur Technik, EarlyView.
Thermal defrosting limits desublimator efficiency in freeze‐drying. This review and case study compares thermal versus mechanical regeneration, links frost properties and external heat transfer to energy demand, and summarizes pilot‐scale scraping results enabling single‐unit, continuous lyophilization.
Moritz Krummenacher, Mirko Kleingries, Edgar Zimmer, Roman Blättler   +3 more
wiley   +1 more source

The Radiation Belts of Jupiter and Saturn

, 2021
The era of outer planet orbiters (Galileo, Juno and Cassini) is advancing our understanding of how the radiation belts of Jupiter and Saturn are structured, form, and evolve well beyond what had been possible during the age of flyby missions and ground ...
Peter Kollmann, Elias Roussos, Kollmann, P., Roussos, E.   +3 more
core   +1 more source

An optimizing microseismic method for rock burst early warning based on mining production process

Deep Underground Science and Engineering, EarlyView.
A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han, Linming Dou, Wu Cai, Mingbo Chi, Guojun Xi, Shuai Chen, Biao Jiao   +6 more
wiley   +1 more source

Exploration of energization and radiation in geospace (ERG): challenges, development, and operation of satellite systems

Earth, Planets and Space, 2018
The exploration of energization and radiation in geospace (ERG) satellite, nicknamed “Arase,” is the second satellite in a series of small scientific satellites created by the Institute of Space and Astronautical Science of the Japan Aerospace ...
Yosuke Nakamura, Seisuke Fukuda, Yasuko Shibano, Hiroyuki Ogawa, Shin-ichiro Sakai, Shigehito Shimizu, Ersin Soken, Yu Miyazawa, Hiroyuki Toyota, Akio Kukita, Yusuke Maru, Junichi Nakatsuka, Tomohiko Sakai, Shinsuke Takeuchi, Kenichiro Maki, Makoto Mita, Emiko Ogawa, Yuya Kakehashi, Kumi Nitta, Kazushi Asamura, Takeshi Takashima, Iku Shinohara   +21 more
doaj   +1 more source