Question

explain LHR ?from science (CHEMISTRY)
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Answer 1

Answer:

The Observed Lung area to Head circumference Ratio (LHR) =Lung area / Head circumference. ... The lung area of the lung contralateral to the CDH obtained by taking the product of Length 1 X Length 2 OR by tracing of the limits of the lung contralateral to the CDH. If the LHR is 1 or less, the prognosis is poor.

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Answer 2

Explanation:

The potential created by a current pulse is derived using a warm-plasma description in the vicinity of the lower hybrid resonance (LHR). The results are somewhat different from the previous ones obtained with the cold-plasma theory; the amplitude of the excited wave has an asymptotic decay with time as t −1 rather than t −1/2 .

The spatial distribution of the potential shows a propagation effect that gives a reasonable explanation of the duration of the VLF echoes excited by the Isis 2 HF transmitter; it might also provide a technique for the measurement of the ionic thermal velocity and the drift velocity component perpendicular to the magnetic field.