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Gallium phosphide crystals were grown from polycrystalline material in a solution of gallium contained in evacuated and sealed-off quartz tubes.

Rain-Induced Differential Attenuation and Differential Phase Shift at Microwave Frequencies By J. A. MORRISON, M. J. CROSS, and T. S.

Realizability Conditions for the Impedance Function of the Lossless Tapered Transmission Line By P. L.

In a recent brief1 in the B.S.T.J., Zador presents, without proof, realizability conditions for the input impedance of the lossless tapered transmission line terminated in unit resistance.

Absorption due to the 1.38-/xm overtone of the O H - vibration in silica has long been an obstacle to low-loss propagation in optical fibers at wavelengths near the dispersion minimum.

One of the earliest computers used capacitors as its memory. 1 A mechanical means was used for both read-in and read-out operations.

In 1972 the concept of serial encoding and decoding for single error correcting BCH codes was introduced.1,2 In this note, the concept of serial encoding and decoding is generalized and the timing

A class of nonlinear equations arising in transistor network analysis, as well as in other areas, has the form 1i(x{) + X) aaXi -- bi = 0 i-i or in matrix notation F(x) + Ax - b = 0, (2) where the

Sputtered Glass Waveguide for Integrated Optical Circuits By J. E. G O E L L and R. D.

The process of frequency conversion and its applications are well known and have been extensively treated in the literature.