منابع مشابه
Electrostatic discharges and their effect on the validity of registered values in intracranial pressure monitors.
OBJECT Intracranial pressure (ICP) monitoring is used extensively in clinical practice, and as such, the accuracy of registered ICP values is paramount. Clinical observations of nonphysiological changes in ICP have called into question the accuracy of registered ICP values. Subsequently, the authors have tried to determine if the ICP monitors from major manufacturers were affected by electrosta...
متن کاملAn experimental system for controlled exposure of biological samples to electrostatic discharges.
Electrostatic discharges occur naturally as lightning strokes, and artificially in light sources and in materials processing. When an electrostatic discharge interacts with living matter, the basic physical effects can be accompanied by biophysical and biochemical phenomena, including cell excitation, electroporation, and electrofusion. To study these phenomena, we developed an experimental sys...
متن کاملThree point method to characterize low-pressure electronegative discharges using electrostatic probe.
Electrostatic probe measurements for low-pressure inductively coupled SF(6) plasmas are performed. From the current-voltage (I-V) curves of probe, the saturation currents of the positive ions and electrons and the electron temperature are measured. The electronegativity and the negative ion density are deduced by using the ratios of these parameters at three adjacent pressure points. The positi...
متن کاملThe baseline pressure of intracranial pressure (ICP) sensors can be altered by electrostatic discharges
BACKGROUND The monitoring of intracranial pressure (ICP) has a crucial role in the surveillance of patients with brain injury. During long-term monitoring of ICP, we have seen spontaneous shifts in baseline pressure (ICP sensor zero point), which are of technical and not physiological origin. The aim of the present study was to explore whether or not baseline pressures of ICP sensors can be aff...
متن کاملEffects of ring shadowing on the detection of electrostatic discharges at Saturn
[1] A long-standing discrepancy exists in determinations from observations and modeling of the diurnal variation of the peak electron density of Saturn’s ionosphere. Using a new Saturn-Thermosphere-Ionosphere-Model (STIM), we examine the suggestion by Burns et al. (1983) that Saturn’s rings shadow its ionosphere causing radio penetration ‘‘holes’’, thereby allowing lightning-induced radio signa...
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ژورنال
عنوان ژورنال: BMJ
سال: 1992
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.305.6852.529-b