Many applications in computer graphics and geometry processing rely on the ability to
locally orient 2D and 3D entities on a surface, or inside a volume, such as the sinusoidal
kernels in Gabor noise, the color and geometry textures in pattern synthesis, and the
finite elements in remeshing. In these...
Automatic painterly rendering systems have been proposed but they opted for selecting a single style to generate paintings from images, which lacks the ability of creatively using multiple styles to focus important objects and deemphasize unimportant part of the scenes. We provide a multi-style painting framework to
address this issue...
The first part of this work presents an executive system for
steady state process systems analysis. The executive is developed
to promote maximum flexibility, generality and a high degree of
man-machine interaction by allowing the user to write a Fortran
main calling program which permits special logic and control to...
Most flexible manufacturing systems (FMS) presently in use have generated only modest productivity increases in proportion to capital in vested in the process, or they have not been favorably reviewed when compared to the investment costs of other improved manufacturing systems. This thesis presents a simulator program which will assist...
The asymptotic convergence acceleration method used in steady
state process simulation is examined in detail, and a criterion is
developed to decide when it should be applied. The criterion is related
to the rate of convergence of each variable and does not require any
prejudgment of its tolerance level by...
The gradient of a velocity vector field is an asymmetric tensor field which can provide critical insight that is difficult to infer from traditional trajectory-based vector field visualization techniques. I describe the structures in the eigenvalue and eigenvector fields of the gradient tensor and how these structures can be used...
The importance of data visualization is becoming increasingly more substantial to the field of optimization and engineering design where a carefully designed visualization of the data on decision parameters (i.e Decision Space) and performance functions (i.e Objective Space) is critical to the success of the decision making process.
One of...
Branched covering spaces are a mathematical concept which originates from complex analysis and topology and has found applications in tensor field topology and geometry re-meshing. Given a manifold surface and an N-way rotational symmetry field, a branched covering space is a manifold surface that has an N-to-1 map to the...
An advanced laboratory interfacing capability was developed
for the Real-Time Digital Computer Laboratory in the Chemical
Engineering Department. A stationary interfacing unit located
beside the computer mainframe and two small remote units were
designed, developed and thoroughly tested. These interfacing
units permit experiments with a wide variety of analog and...