International reference ionosphere (1990)
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چکیده
منابع مشابه
The International Reference Ionosphere – Climatological Standard for the Ionosphere
The International Reference Ionosphere (IRI) a joint project of URSI and COSPAR is the defacto standard for a climatological specification of ionospheric parameters. IRI is based on a wide range of ground and space data and has been steadily improved since its inception in 1969 with the ever-increasing volume of ionospheric data and with better mathematical descriptions of the observed global a...
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The International Reference Ionosphere (IRI) project was established jointly by the Committee on Space Research (COSPAR) and the International Union of Radio Science (URSI) in the late sixties with the goal to develop an international standard for the specification of plasma parameters in the Earth’s ionosphere. COSPAR needed such a specification for the evaluation of environmental effects on s...
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A retrospective review was conducted of all esthesioneuroblastoma cases treated at UCLA Medical Center from 1970 through 1990. Patients were staged according to the staging systems of Kadish, et al., Biller, et al., and a new staging system proposed by the authors. Of 26 patients treated, 74% were alive at 5 years and 60% were alive at 10 years. Combined treatment with surgery and radiation is ...
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Reference curves for stature and weight in British children have been available for the past 30 years, and have recently been updated. However weight by itself is a poor indicator of fatness or obesity, and there has never been a corresponding set of reference curves to assess weight for height. Body mass index (BMI) or weight/height has been popular for assessing obesity in adults for many yea...
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ژورنال
عنوان ژورنال: Planetary and Space Science
سال: 1992
ISSN: 0032-0633
DOI: 10.1016/0032-0633(92)90174-m