Results 101 to 110 of about 29,895 (213)

A study of the relative effectiveness and cost of computerized information retrieval in the interactive mode [PDF]

open access: yes
Results of a number of experiments to illuminate the relative effectiveness and costs of computerized information retrieval in the interactive mode are reported.
Furniss, M. A.   +2 more
core   +1 more source

Research of microwave scattering properties of snow fields [PDF]

open access: yes
The results obtained in the research program of microwave scattering properties of snow fields are presented. Experimental results are presented showing backscatter dependence on frequency (5.8-8.0 GHz), angle of incidence (0-60 degrees), snow wetness ...
Angelakos, D. J.
core   +1 more source

Measurements of the vertical profile of water vapor abundance in the Martian atmosphere from Mars Observer [PDF]

open access: yes
An analysis is presented of the Pressure Modulator Infrared Radiometer (PMIRR) capabilities along with how the vertical profiles of water vapor will be obtained. The PMIRR will employ filter and pressure modulation radiometry using nine spectral channels,
Mccleese, Daniel J., Schofield, J. T.
core   +1 more source

Results of radiometric and geochemical measurement for the natural radioactivity map of Slovenia

open access: yesGeologija, 1994
In 1990, a program was initiated to cover Slovenia with portable gamma-ray spectrometer measurements on a 5 x 5 km grid. The measurements were performed with a four channel Scintrex GAD-6 spectrometer.
Mišo Andjelov
doaj  

Deployable antenna phase A study [PDF]

open access: yes
Applications for large deployable antennas were re-examined, flight demonstration objectives were defined, the flight article (antenna) was preliminarily designed, and the flight program and ground development program, including the support equipment ...
Bernstein, J.   +7 more
core   +1 more source

Radiometry of water turbidity measurements [PDF]

open access: yes
An examination of a number of measurements of turbidity reported in the literature reveals considerable variability in the definitions, units, and measurement techniques used.
Mccluney, W. R.
core   +1 more source

Applications of Microwaves to Remote Sensing of Terrain [PDF]

open access: yes
A survey and study was conducted to define the role that microwaves may play in the measurement of a variety of terrain-related parameters. The survey consisted of discussions with many users and researchers in the field of remote sensing. In addition, a
Porter, R. A.
core   +1 more source

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