منابع مشابه
Pressure anisotropy in global magnetospheric simulations: A magnetohydrodynamics model
[1] In order to better describe the space plasmas where pressure anisotropy has prominent effects, we extend the BATS-R-US magnetohydrodynamics (MHD) model to include anisotropic pressure. We implement the anisotropic MHD equations under the double adiabatic approximation with an additional pressure relaxation term into BATS-R-US and perform global magnetospheric simulations. The results from i...
متن کاملMagnetospheric reconnection driven by solar wind pressure fronts
Recent work has shown that solar wind dynamic pressure changes can have a dramatic effect on the particle precipitation in the high-latitude ionosphere. It has also been noted that the preexisting interplanetary magnetic field (IMF) orientation can significantly affect the resulting changes in the size, location, and intensity of the auroral oval. Here we focus on the effect of pressure pulses ...
متن کاملMagnetospheric cavity modes driven by solar wind dynamic pressure fluctuations
[1] We present results from Lyon-Fedder-Mobarry (LFM) global, three-dimensional magnetohydrodynamic (MHD) simulations of the solar wind-magnetosphere interaction. We use these simulations to investigate the role that solar wind dynamic pressure fluctuations play in the generation of magnetospheric ultra-low frequency (ULF) pulsations. The simulations presented in this study are driven with idea...
متن کاملComparison of blood pressure measurements on the upper and lower extremities during spinal anesthesia
Introduction: During spinal anesthesia, measurement of blood pressure is often obtained by an indirect method using an inflatable cuff on the upper arm. The relationship between the blood pressure measurements at the two sites in patients undergoing spinal anesthesia is unclear. This study was designed to evaluate the difference observed in systolic blood pressure (SBP) taken from the upp...
متن کاملBlood pressure measurements in the ankle are not equivalent to blood pressure measurements in the arm.
BACKGROUND Blood pressure (BP) is often measured on the ankle in the emergency department (ED), but this has never been shown to be an acceptable alternative to measurements performed on the arm. OBJECTIVE To establish whether the differences between arm and ankle non-invasive BP measurements were clinically relevant (i.e. a difference of ≥10 mmHg). METHODS This was a prospective cross-sect...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 2002
ISSN: 0148-0227
DOI: 10.1029/2001ja900167