Results 101 to 110 of about 10,971 (177)

Ultra Wide Swath Imaging With Multi-Channel SAR Systems [PDF]

open access: yes, 2008
Multi-channel radar systems allow for overcoming the inherent limitation of conventional synthetic aperture radar (SAR). An example is the combination of digital beamforming on receive in elevation with multi-aperture SAR signal reconstruction in azimuth
Bordoni, Federica   +4 more
core  

Development of guidelines for using bioextraction technologies to manage nutrients in New Hampshire\u27s estuarine waters [PDF]

open access: yes, 2011
There is growing literature on bioextraction approaches to managing nutrients in coastal waters, and it includes studies using a variety of species.
Grizzle, Raymond E.
core   +1 more source

A new fabrication method for precision antenna reflectors for space flight and ground test [PDF]

open access: yes
Communications satellites are using increasingly higher frequencies that require increasingly precise antenna reflectors for use in space. Traditional industry fabrication methods for space antenna reflectors employ successive modeling techniques using ...
Ketelsen, Dean A.   +2 more
core   +1 more source

Guidelines for the study of the epibenthos of subtidal environments [PDF]

open access: yes
These Guidelines for the Study of the Epibenthos of Subtidal Environments document a range of sampling gears and procedures for epibenthos studies that meet a variety of needs.
Bergman, M.J.N.   +4 more
core   +2 more sources

Current Experimental Basis for Modeling Ice Accretions on Swept Wings [PDF]

open access: yes
This work presents a review of the experimental basis for modeling ice accretions on swept wings. Experimental work related to ice accretion physics on swept wings conducted between 1954 and 2004 is reviewed.
Vargas, Mario
core   +1 more source

Have graben wall scarps accumulated sand and dust on Mars? [PDF]

open access: yes
Grabens are linear fault bounded troughs that are extremely abundant on Mars (about 7000 cover the Western Hemisphere). Analysis of lunar and Martian grabens as well as analogous structures on Earth indicates that grabens form under extension when the ...
Davis, P. A., Golombek, M. P.
core   +1 more source

Densidad, crecimiento y supervivencia de juveniles de Lyropecten (Nodipecten) nodosus (Pteroida: Pectinidae) en cultivo suspendido en el Golfo de Cariaco, Venezuela

open access: yesRevista de Biología Tropical, 2000
El efecto de la densidad sobre el crecimiento y la supervivencia de juveniles del pectínido Lyropecten nodosus se estudió en condiciones de cultivo intermedio en el Golfo de Cariaco, Estado Sucre, Venezuela (diciembre 93 - julio 94).
Vanessa Acosta   +2 more
doaj  

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