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23 Νοε 2019 · In this paper, we provide a review on historical background and recent advances in understanding and modeling acceleration, transport, and loss processes of energetic particles in the Earth's Van Allen radiation belts, followed by outstanding challenges for developing future radiation belt models.
Rennet is the enzymatic preparation of two main acid proteolytic enzymes (chymosin and pepsin) secreted in the fourth stomach (abomasum) of unweaned ruminants (calves, lambs or kids). The use of rennet in cheesemaking dates back to approximately 6000BC (Fox and McSweeney, 1997).
26 Μαΐ 2017 · In 1957 Professor James Van Allen was researching cosmic rays and the origins of the aurora as intellectual pursuits. He and his students were greatly surprised when his instrument on the United States Explorer 1 satellite discovered intense radiation in the space environment above Earth's atmosphere [Van Allen, 1983].
27 Απρ 2021 · The space radiation environment is a complex combination of fast-moving ions derived from all atomic species found in the periodic table. The energy spectrum of each ion species varies widely but is prominently in the range of 400–600 MeV/n.
8 Δεκ 2023 · The first was the discovery by James Van Allen and his students and colleagues at the University of Iowa of radiation belts surrounding the Earth. These Van Allen radiation belts were an unexpected consequence of Van Allen’s research on cosmic rays using the first few Explorer satellites.
The term rennet is usually dedicated to a functional enzyme preparation that is able to induce milk curd formation. Starting with natural rennet from the abomasal mucosa of ruminants, this chapter summarizes information on the manufacture and the application of coagulant enzymes in cheesemaking.
29 Ιαν 2020 · This paper is in response to a request for my recollections regarding the origins of space radio and plasma wave research at the University of Iowa, with an emphasis on the era before 1980. My involvement in space research at Iowa began in April 1958 when I was hired as a freshman electrical engineering student by Prof. James A. Van Allen.
