The extremely fast ionization process in semiconductors offers a means of generating pulses that have sub -nanosecond rise times and high peak powers. There are several important applications of these pulses which require the duration of the generated pulse to be variable. This thesis investigates three methods of producing variable...
The vapor pressures of propylene carbonate and iso-propyl
benzoate were measured by the comparative ebulliometric method.
The range of vapor pressures were from 24.8 mm Hg to 620 mm Hg
for propylene carbonate and from 56.2 mm Hg to 760 mm Hg for
iso-propyl benzoate. To correlate the experimental data...
The
experimental
procedure
for
evaporating
silicon
monoxide
together
with
the
methods
for
measuring
the film
thickness
have
been
investigated.
The
effects
of
various
process
parameters
on
the
rate
of
deposition,
such
as
source
temperature
and
source-substrate
distance,
have
been
studied.
The
uniformity
of
silicon
monoxide
films
deposited
by
this
particular...
The enactment of the Vocational Education Act of 1963,
plus the Manpower Development and Training Act of 1962 and the
Economic Opportunity Act of 1964 have stimulated renewed vigor
into the nation's vocational education programs. As a direct
result of these acts, new and revised programs are being developed
to...
The use of petroleum oil prevented, to varying degrees: the
transmission of three stylet-borne viruses in three different crops.
The use of oils resulted in a marked improvement in the number of
lily bulbs harvested from treated plots as compared to the number of
lily bulbs harvested from untreated plots....
The biological preparation of aflatoxins was accomplished by
culturing the mold Aspergillus flavus on various media. Aflatoxin
was isolated by chloroform extraction of the culture, and purified
by column fractionation and crystallization. Rice, wheat, soya bean,
peanut and YES media were found to give high yields of aflatoxin. It
was...
In this paper, we are concerned with the very general notion of
a universal algebra. A universal algebra essentially consists of a set
A together with a possibly infinite set of finitary operations on. A.
Generally, these operations are related by means of equations, yielding
different algebraic structures such as...
In the study of uniform convergence, one is led naturally to
the question of how uniform convergence on subsets relates to uniform convergence on the whole space. This paper develops theorems on how pointwise convergence relates to uniform convergence
on finite sets, how uniform convergence on finite subsets relates to...
Unifications among agricultural cooperatives are becoming increasingly commonplace. This process is prompted by the desire to achieve economies of size, to reduce operating costs, to achieve product diversification, to improve the quality of offered services, to eliminate overlapping memberships, and to achieve marketing and/or bargaining power. Historical data indicate that...
The seeds of Douglas fir, a representative of the gymnosperm
flora, were studied at six stages of germination to discern the structures
of food reserves and to study ultrastructural changes occurring
during germination in the embryo and resulting seedlings.
The materials were fixed in three fixatives, dehydrated with
ethanol series,...
Two-stage sulfite pulping conditions were determined which
produced a high-yield high-hemicellulose pulp from red alder (Alnus
rubra Bong.). Those cooks with a bisulfite first-stage and an alkaline
second-stage produced pulps with the highest hemicellulose
content and the highest strength properties.
The major hemicellulose in red alder is 0-acetyl-(4-0-
methylglucurono)xylan. Removal...