The power spectral density of the acoustic signature of
Dungeness crab was calculated by the use of digital computer.
The signal produced by the Dungeness crab was an analog signal.
Therefore a conversion of the signal from analog to digital was
necessary. This was done by sampling the acoustic signature...
This thesis combines elements of forestry, interpersonal communication, and rhetoric to describe where residents of Coos Bay and North Bend Oregon obtain information about forests and forest uses, and how they view the credibility of that information. As a qualitative exploratory study, grounded theory methodology was used to develop theme...
With the advent of underground testing, the study of the propagation of seismic signals has become of great importance. This thesis investigates the design of electrical analogs to represent the propagation of seismic waves. The analogs developed allow for the study of the effects of variations in the characteristic constants...
This thesis deals with the problem of realizing
filter and delay functions by means of an active network
structure composed of distributed RC networks in
conjunction with a negative-impedance converter. Presented
is a general synthesis technique which can be
used for the realization of rational filter and delay
functions such...
A circuit which functions as a controlled negative-resistance is
described and analyzed; the circuit contains two transistors, a breakdown
diode, and five resistors connected in a stable feedback configuration.
From the analysis a set of design equations is derived.
An experimental circuit is described and a comparison between
measured performance...
A method for the synthesis of networks with specified complex
terminations is presented. The specification function is realized
within a multiplicative constant. The technique presented differs
somewhat from present methods employed in the synthesis of networks
with resistive terminations.
The technique is one of rearranging a transfer function and
separating...
The design and operation of a completely automatic trigger
circuit is presented. This circuit differs from conventional trigger
circuits in that manual control adjustments are not necessary. It
will automatically provide stable triggering over a wide range of
trigger signal amplitudes, repetition rates and waveshapes. The circuit
consists of three...
A method for the synthesis of bilateral networks is
presented. A new algorithm for the realization of basic
cut-set matrices is developed. This is done by the
following procedure:
1) We form submatrices, M[subscript j] (i), j= 1,2,..., of the
given cut-set matrix, such that M[subscript j](i) satisfies
the properties...
The Pacific Coast variety of Douglas-fir was investigated.
The samples were tested using both forced and free vibrations. Transverse
vibrations were introduced by excitations on the side of the
samples. Forced vibrations were applied from 5000 to 0 hertz by a
vibration generator, and free vibrations were initiated by a...
The derivation of coefficients for the transfer functions of maximally flat time-delay networks generally begins from an infinite
series approximation of the ideal transfer function. This thesis presents two alternative methods that are particularly suited to cases
involving an unequal number of poles and zeroes in the transfer function. The...