Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Paul G. Cheng"'
Autor:
Paul G. Cheng, Thomas C. Hecht
Publikováno v:
Journal of Space Safety Engineering. 8:225-230
Many “How to Write Good Requirements” guidelines seek to prevent programs from overrunning, being mired in delays, or suffering a flight catastrophe. It is rare, however, to see concrete examples that unambiguously shed light on why these best pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f24fa6ef75eae307ac47a72bb2c22f7e
https://doi.org/10.1016/j.jsse.2021.04.002
https://doi.org/10.1016/j.jsse.2021.04.002
Autor:
Peter J. Carian, Paul G. Cheng
Publikováno v:
Journal of Space Safety Engineering. 8:128-133
Sign errors are the most preventable cause of space mishaps, but ironically the leading one as well. This paper recounts the trials and tribulations of several missions, and shows that sign errors can occur anywhere. In every case, engineers overlook
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8837d99b5eb00524e2dffd25471b3136
https://doi.org/10.1016/j.jsse.2021.03.001
https://doi.org/10.1016/j.jsse.2021.03.001
Autor:
Paul G. Cheng, William F. Tosney
Publikováno v:
Space Safety is No Accident ISBN: 9783319159812
The Aerospace Corporation (Aerospace) conducts extensive space safety activities as a part of its overall mission assurance responsibilities. This paper spotlights safety insights gleaned by Aerospace from past space mishaps. It also explains how Aer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::634ae330422f5844a6021d05b5620924
https://doi.org/10.1007/978-3-319-15982-9_11
https://doi.org/10.1007/978-3-319-15982-9_11
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 26:3229-3233
Perfluoroalkylene diacetylenes, HCC(CF2)nCCH, underwent thermal polymerization at 250–350°C to give glassy polymers stable to 450°C. Partial polymerization of the volatile monomers gave oligomers that are processable at atmospheric pressure. Poly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cdb99ba7ebaa2822ae7eebdaa25fad4
https://doi.org/10.1002/pola.1988.080261209
https://doi.org/10.1002/pola.1988.080261209
Publikováno v:
Journal of the American Chemical Society. 104:5185-5188
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11631ce6555c0898cec8b389cdde63ac
https://doi.org/10.1021/ja00383a032
https://doi.org/10.1021/ja00383a032
Publikováno v:
Chemischer Informationsdienst. 13
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::268bdf63c5b868eb09f8678d11db6e99
https://doi.org/10.1002/chin.198251302
https://doi.org/10.1002/chin.198251302