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An empirical determination of the polytropic index for the free‐streaming solar wind using Helios 1 data
Observations of solar wind proton temperatures indicate that the solar wind is heated as it moves outward toward the orbit of Earth. This heating, which may be the result of electron heat conductionExpand
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Viscoelastic properties of human skin and processed dermis
Background/aims: The purpose of this work is to attempt to determine the elastic spring constant for collagen and elastic fibers (elastin) in skin and to detemine if the values of these elasticExpand
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Kp forecast models
[1] Magnetically active times, e.g., Kp > 5, are notoriously difficult to predict, precisely the times when such predictions are crucial to the space weather users. Taking advantage of the routinelyExpand
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Solar wind proton temperature‐velocity relationship
Data from Helios 1 are examined to find an experimental fit for the T(V) relationship at 1 AU. The data show a distinct change in the proton temperature-velocity slope at V ∼ 500 km s−1. For V > 500Expand
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Lunar electric fields, surface Potential and Associated Plasma Sheaths
This paper reviews the electric field environment of the Moon. Lunar surface electric potentials are reported as follows:Solar Wind - Dayside: øo + 10 to + 18 VSolar Wind - Terminator: øo ç − 10 to −Expand
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Application of the empirically derived polytropic index for the solar wind to models of solar wind propagation
An empirically derived polytropic index for the solar wind is applied to two magnetohydrodynamic models of solar wind propagation. The first of these models is time-independent and can be used toExpand
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Partial t-spreads and group constructible (s,r,μ)-nets
We give a method for constructing (s,r,μ)-nets out of partial t-spreads. As one consequence, we are able to apply a theorem of Bose and Bush to improve the known upper bound for the number ofExpand
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Estimates of solar wind velocity gradients between 0.3 and 1 AU based on velocity probability distributions from Helios 1 at perihelion and aphelion
We have estimated the average velocity gradients for the solar wind protons by comparing the velocity probability distributions at 0.3 and at 1 AU Assuming a power law radial dependence, we find, forExpand
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Estimates of solar wind heating inside 0.3 AU
We normalize the Helios 1 proton temperature data to 0.3 AU to establish a base temperature-velocity curve at that distance and ask what solar wind heating rates, versus velocity, closer to the sun,Expand
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The morphology of the electron distribution in the outer radiation zone and near the magnetospheric boundary as observed by Explorer 12
The elliptic orbit satellite Explorer 12 made possible the routine survey of the heart of the outer radiation zone as well as the region of transition between the magnetosphere and interplanetaryExpand
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