12,290 research outputs found
The radial evolution of the solar wind, 1-10 AU
The interplanetary plasma and magnetic field observations from 1 to 10 AU are reviewed. Over this distance no clear reduction in average speed is seen. The range of wind speeds becomes smaller though high speed streams are still observed. The density, temperature and magnetic field profiles become dominated by the large values seen in the co-rotating interaction regions. The temperature falls more slowly than would be expected from a simple, adiabatic model. Co-rotating shocks appear beyond approximately 3 AU in Voyager data as opposed to beyond approximately 1.5 AU in the Pioneer data. Reverse shocks appear later than forward shocks; reverse shocks do not begin to appear until approximately 4 AU; reverse shocks appear to decay more rapidly than forward shocks. No clear effect due to interaction with the interstellar medium was seen in this radial range
SUGGESTED PROCEDURES FOR ESTIMATING FARM MACHINERY COSTS FOR EXTENSION AUDIENCES
North Central Farm Machinery Task Force is a group of extension economists who evaluated alternative methods for estimating farm machinery costs and made recommendations for the development of extension materials. This paper describes the procedures agreed upon, and explains the rationale for the procedures chosen. The focus is on "typical" machinery costs for use in extension budgets and other analyses and examples. This paper also provides detailed documentation of the methods used in recent versions of the widely used Minnesota Farm Machinery Economic Cost Estimates publication (referred to below as "the Minnesota fact sheet"), focusing mainly on the 2000 version.Agricultural Finance, Farm Management,
Solar plasma experiment
Solar plasma experiment by Mariner IV space prob
Observation of the angular momentum flux carried by the solar wind
Angular momentum flux carried by solar wind calculated from Mariner 5 dat
An east-west asymmetry in the solar wind velocity
East-west asymmetry in solar wind velocit
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