This thesis examines various net or finite difference methods
for solving parabolic partial differential equations in one space variable
with constant coefficients. Included in this investigation are
explicit, implicit and multi-step methods of varying orders of accuracy.
These methods are compared with respect to accuracy, speed,
efficiency, stability, simplicity of...
The nuclear reaction ¹⁰⁰Mo(¹²⁴Sn,xn)[superscript 224-x]U has been carried out at E[subscript cot] of 578 MeV and 634 MeV using the facilities and equipment at the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Laboratory (ORNL) in order to initiate the search for the inverse fission of uranium. Reference...
Comparisons were made between anthraquinone modified soda pulp (soda-AQ), and methanol modified kraft (kraft-Me0H) and sulfite (sulfite-Me0H) pulps on western Oregon Douglas-fir. The kappa number, yield, brightness, and deshive values were all measured. The soda-AQ and kraft-Me0H pulps were the traditional brown color but the sulfite-Me0H pulps came out of...
By examining the combined written, ethnographic and physical evidence of a surviving
steam-powered sawmill in the Douglas-fir region of the Pacific Northwest, this thesis
seeks to supply new insights into the operation and adaptability of antiquated machinery
during a period of rapid social and technological change and to develop a...
Two numerical methods are presented that can be used to solve
second order nonlinear ordinary differential equations with periodic
boundary conditions. One of these methods is a shooting method developed
solely for the periodic problem. The other, "quasilinearization,"
is a method applicable to a wide variety of problems. It is...
Centrifugal irrigation pumps discharge fluids at high velocities that must be slowed
to minimize energy losses due to friction. Pipe expansions make the transition to larger
pipes associated with slower velocities. Expansions convert the upstream velocity head
to static head in the downstream pipe. The transition to a larger pipe...
The amine extraction process is evaluated for pulse column
operation. A 0.1 M solution of Primene JM-T (a commercial mixture
of tertiary-alkyl primary amines) in a kerosene-base diluent is
the extractant for thorium feed in aqueous acidic sulfate solutions.
Equilibrium isotherms at room temperature are presented at
aqueous acidities of...
A translator has been designed and implemented which generates parallel code for a long instruction word parallel computer with local memories. Its main methods are to translate the sequential source code into single assignment, two-operand form, and to then assign the operations to processors so as to minimize the number...