Zobrazeno 1 - 10
of 10
pro vyhledávání: '"N. L. Hazen"'
Autor:
J. N. Hazen, J. N. Demusz, James G. Anderson, N. L. Hazen, Norton Allen, Darin W. Toohey, Linnea M. Avallone
Publikováno v:
Geophysical Research Letters. 20:1791-1794
Abundances of chlorine oxide (ClO) have been measured from 16 km to 30 km by a new balloon-borne in situ instrument developed from an optical design flown previously on the NASA ER-2 aircraft. This instrument, a prototype for one to be flown on the P
Autor:
J. N. Demusz, L. B. Lapson, Ronald C. Cohen, Paul O. Wennberg, James G. Anderson, J. F. Oliver, N. W. Lanham, Norton Allen, Thomas F. Hanisco, N. L. Hazen
The odd-hydrogen radicals OH and HO2 are central to most of the gas-phase chemical transformations that occur in the atmosphere. Of particular interest is the role that these species play in controlling the concentration of stratospheric ozone. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec372ad28e5821b347d4d6ff17d90f0b
https://resolver.caltech.edu/CaltechAUTHORS:WENrsi94
https://resolver.caltech.edu/CaltechAUTHORS:WENrsi94
Autor:
James G. Anderson, N. L. Hazen
Publikováno v:
Advances in Space Research. 5:45-48
A balloon-borne winching system has been developed for extending a very long tether with payload down into the stratosphere and recovering it, this has been flight proven by being carrried to an altitude of 40 km, lowering a 62-kg stratospheric photo
Publikováno v:
Advances in Space Research. 7:97-100
Results of the second flight of the Harvard Reel Down balloon-born winching system, in which a more complex photochemical detection package was twice lowered from a float altitude of 39 km and reeled back to the winch, are reported. Modifications ove
Autor:
Elliot M. Weinstock, E. E. Thompson, L. Solomon, B. E. Mclaren, James G. Anderson, C. M. Schiller, N. L. Hazen, M. J. Schwab, S. P. Rowe
Publikováno v:
Science (New York, N.Y.). 228(4705)
A new approach to in situ observations of trace reactive species in the stratosphere is described. A balloon-borne system, floating 40 kilometers above the earth's surface, successfully lowered and then retracted a cluster of instruments a distance o
Autor:
N L, Hazen, B, Black
Publikováno v:
Child development. 60(4)
The purpose of this study was to investigate the relation between social status and discourse skills in preschool children. Using peer nominations, 48 acquainted preschool children were classified as liked, disliked, or low impact. Children were vide
Autor:
N. L. Hazen
Publikováno v:
Instrumentation in Astronomy II.
Description of a recently developed balloon-borne 1-m far-infrared telescope designed to carry out astronomical observations and to map radiation from selected areas of the sky. The telescope optical system consists of a conventional Cassegrain arran
Autor:
James G. Anderson, N. L. Hazen
Publikováno v:
22nd Aerospace Sciences Meeting.
A balloon-borne winch system has been developed and flight tested which permits the repetitive lowering and hoisting of a stratospheric sampling payload for distances of up to 20 km from a float altitude of 35-40 km. This new approach to in situ stra
Autor:
I. J. Danziger, N. L. Hazen
Publikováno v:
SPIE Proceedings.
Two low-dispersion scanning spectrophotometers were recently delivered to the Kitt Peak National Observatory (KPNO) for the astronom-ical community engaged in photometric observations there and at the Cerro Tololo Interameri can Observatory. Develope
Autor:
N. L. Hazen
Publikováno v:
Review of Scientific Instruments. 42:894-895
Elastomer O ring vacuum device for positive holding of Schumann film for precise microdensitometry during rocket flight in 7 March 1970 solar eclipse