A study of unmanned mission opportunities to comets and asteroids [PDF]
Several unmanned multiple-target mission opportunities to comets and asteroids were studied. The targets investigated include Grigg-Skjellerup, Giacobini-Zinner, Tuttle-Giacobini-Kresak, Borrelly, Halley, Schaumasse, Geographos, Eros, Icarus, and Toro ...
Bjorkman, W. +2 more
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Project Summaries, 1989 - 1990 [PDF]
Student designs summarized here include two undergraduate space designs and five graduate space designs from fall 1989, plus four undergraduate space designs and four undergraduate aircraft designs from spring 1990.
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Space shuttle/payload interface analysis (study 2.4). Volume 1: Executive summary [PDF]
The space shuttle/payload interface analysis is presented. The analysis consists of the following sections: (1) payload capture and cost analysis, (2) business risk and value of operations in space analysis, and (3) payload community analysis.
Pritchard, E. I.
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Computer algebra in gravity research. [PDF]
Living Rev Relativ, 2018 MacCallum MAH.
europepmc +1 more source
Solid propulsion advanced concepts [PDF]
The feasibility and application of a solid propulsion powered spacecraft concept to implement high energy missions independent of multiplanetary swingby opportunities are assessed and recommendations offered for future work.
Nakamura, Y., Shafer, J. I.
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Cardiac glycosides protect wormseed wallflower (Erysimum cheiranthoides) against some, but not all, glucosinolate-adapted herbivores. [PDF]
New PhytolYounkin GC +7 more
europepmc +1 more source
All that glitters is not Ramularia. [PDF]
Stud Mycol, 2016 Videira SI +4 more
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A Titan exploration study: Science, technology, and mission planning options, volume 2 [PDF]
For abstract, see Vol.
Edsinger, L. E. +5 more
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Genetics of cell surface receptors for bioactive polypeptides: binding of epidermal growth factor is associated with the presence of human chromosome 7 in human-mouse cell hybrids. [PDF]
Proc Natl Acad Sci U S A, 1980 Shimizu N, Behzadian MA, Shimizu Y.
europepmc +1 more source
Structures of the Foamy virus fusion protein reveal an unexpected link with the F protein of paramyxo- and pneumoviruses. [PDF]
Sci AdvFernández I +9 more
europepmc +1 more source