Digital Commons Network^™

Gsd - An Interactive Window Oriented Debugger, Gary Bricault S.

Theses

Each computer program, no matter how carefully designed, may contain code entry mistakes, errors in logic, and/or anomalies that can result in unexpected outcome (also known as bugs). In order to find and correct these problems, a software tool known as a debugger can be utilized by a programmer as an aid in isolating and correcting computer programs. The purpose of this thesis is to design and create such a tool for the AT&T UNIX-PC CU that will allow the user to function interactively within a window-oriented environment. This new debugger will be referred to as GSD (Graphic Symbolic Debugger). …

Computing Techniques For The Enumeration Of Cyclic Steiner Systems, Timothy Frenz Carl

Theses

In this thesis a powerful algorithm is developed for finding cyclic Steiner systems. A cyclic Steiner system with parameters S(t,k,v) is a pair ( V,B), where B is a collection of subsets all of size k (called blocks) and V is a t; element set of points, such that each t-subset of V is contained in precisely one block of B. A Steiner system is called cyclic if it has an automorphism carrying the points in a v-cycle. The results obtained so far with this algorithm are given in Table VII of chapter 5. Among the values reported there, are …

Computer Construction Of (4,4,V)-Threshold Schemes From Steiner Quadruple Systems, W. Monroe John

Theses

A construction for Sv/4 pairwise disjoint quadruple systems on u points has been given by Lindner. This thesis looks at an implementation of nearly optimal (4,4, v)threshold schemes based on his construction. These threshold schemes will have 3 v/4 keys, whereas the best implementation known to date is based on a construction given by Shamir and yields only v/4 keys. Lindner's construction depends heavily on the existence of an iV2 latin square of order v/4, thus several constructions for them have also been implemented. Unfortunately, due to the combinatorial nature of the problem, the limitations of this implementation are an …

Enhancements To The Frame Virtual Machine, Archna Bhandari

Theses

The Enhanced Frame Package is a tool to build Expert Systems. It is a frame based system, that initially was developed in C-Prolog by LaMora S. Hiss at Rochester Institute of Technology in 1987 for her master's thesis. It was enhanced in the current thsis to provide much larger expressive power andgreater ease of use. Several operators were modified/enhanced, and several new operators were added, while providing the user a balance of computational tractability, expressive power and consistency. Major concepts provided in the Enhanced Frame Package include - local consistency checking as opposed to global consistency checking and how the …

Three-Dimensional Data Input Using Sutherland's Two-Dimensional Tablet Strategies Plus Enhanced User Feedback, Myra Bennett Pelz

Theses

Although the representation of three-dimensional computer images has become increasingly more sophisticated and complex, the problem of making three-dimensional data available to the computer continues to plague graphics systems designers. In 1974, Ivan Sutherland developed a system that defines a three-dimensional point by digitizing the same point simultaneously in two different two-dimensional views of an object. This project will implement Sutherland's system, with refinements, particularly in the area of improved user feedback.

The Dfs Distributed File System: Design And Implementation, Ananth K. Rao

Theses

This thesis describes the design of an operating system independent distributed file system (DFS) and details the implementation, on a cooperating set of server computers interconnected by means of a communications network. The DFS provides the mechanism by which the file systems of these physically dispersed units are integrated into a single logical unit. Users and application programs thus have the illusion that their files are on a single computer system, even though in reality they may be physically distributed around the network. This location transparency frees users from having to remember details such as the current location of the …

Multi-Image Animation: "Super Hero", Jeannette M. Achurra

Theses

None provided.

Integration Of Computer-Aided Design Techniques Into The Mechanical Product Development Process, Gerard R. Sturnick

Theses

Computer-Aided Design (CAD) has been called the most significant advance since the development of electricity. CAD is regarded as being the greatest breakthrough of modern times in the search for ways to improve the Product Development Process. This improvement is provided in terms of bringing to market better quality and higher performance products in a significantly shorter design/development cycle and at a lower cost. A survey of the various computer-aided design techniques is presented as they are currently being applied in the mechanical product development process. The research of these techniques includes the basic system operation from a user's perspective, …

Anaerobic Biodegradation Of Trichloroethylene By Activated Carbon Fluidized-Bed, Jiunn-Horng Chern

Theses

The synthetic wastewater containing trichloroethylene (TCE) was anaerobically degraded with glucose using activated carbon fluidized-bed.

The range of TCE concentration from 26 ppb to 10.8 ppm was examined. The ratio of glucose to TCE in the influent wastewater was ranged from 26 to 805, while the TCE loading ranged from 0.025 to 1.510 mg/hr-L.

The TCE removal efficiency under these treatment conditions was found to be of 99.4%. However, the reduction of chemical oxygen demand (COD) decreased when the TCE loadings was over 0.38 mg/hr-L.

The Design And Implementation Of An Information System For A Consumer Product Company Distribution Center, Richard C. Gilormo

Theses

The purpose of the thesis is to design an information system for a consumer product company distribution center from the MIS and distribution center staff perspective.

The design of the information system is based on the steps involved in the project cycle which are necessary for the successful completion of a project. The steps range from requirements gathering to project completion. Each step in the project cycle identifies key areas that must always be addressed, including the pitfalls that must be avoided.

This thesis can be used as a tool for the development of any distribution center information system project …

Unsaturated Column Studies Of Silty Sand Using A Conservative Tracer, Canagasabapathy Nallianathan

Theses

A laboratory study was conducted to investigate the flow and mass transport of a conservative tracer in the unsaturated phase. For this purpose, a relatively "large-scale" cylindrical column(12 in. O.D. x 4 feet long) was fabricated and equipped with tensiometer and psychrometer sensors.

The soil used in the study was a New Jersey based silty sand compacted to an average dry density of 93 lb/ft³. The soil was permeated with a 0.5 M NaCl solution infiltrated at the top of the column using a perforated spiral tube assembly. The permeant was applied at a constant rate of approximately …

Co-Metabolism Of Pentachlorophenol With Glucose Using Two-Stage Anaerobic Activated Carbon Fluidized Beds, Zen Wang

Theses

Abstract - Detoxification of pentachlorophenol by using a two-stage anaerobic biological activated carbon fluidized bed has been investigated. Glucose was introduced as a cosubstrate to determine the relationship between the glucose/PCP ratio and the extent of PCP detoxification in such a system. This system has been proved to be effective in the removal of both PCP and COD. Ratio of glucose to PCP predominates the performance of the system throughout the whole course of this experiment. At a glucose/PCP ratio of 0.33, the system has a highest reduction of both PCP and COD. Addition of glucose to the highly PCP …

Degradation Of 1,2 - Dichlorobenzene And 1,2,4 - Trichlorobenzene In Water Using Ozone, Hydrogen Peroxide And Ultraviolet Radiation, Wei Jie Chen

Theses

The experiments to oxidize the refractory chemicals, 1,2 - dichlorobenzene and 1,2,4 - trichlorobenzene using ozone, hydrogen peroxide and ultraviolet radiation have been conducted in a photoreactor. The kinetic models for the oxidation processes have been proposed and the data obtained in the experiments was used to calculate the mass transfer coefficient and chemical reaction rate constants. The Rosenbrock Hillclimb optimization algorithm has been used to optimized the coefficient and rate constants to give the best fit to the experimental data. It is concluded that the H₂O₂/UV is the best process for the degradation of 1,2 …

Degradation Of Dichloromethane, Trichloromethane & Carbon Tetrachloride In A Photoreactor, Sanjay Wadhwa

Theses

A SS 304 photoreactor has been designed to study the degradation of EPA priority pollutants. This newly designed system was used to study the kinetics of degradation of dichloromethane, trichloromethane and carbon tetrachloride under O₂/UV, O₃/O₂/UV and H₂O₂/UV schemes. These compounds have been found to exhibit similar kinetics. The experimental data obtained was. analyzed for pollutant concentration using gas chromatography. The rate constants and mass transfer coefficients were found using a mathematical model to fit the experimental data. A computer program based on the Rosenbrock Hillclimb method in conjunction with …

Implementation Of A Robotic Workcell, John J. Rogers

Theses

This thesis is intended to provide the reader with some insight into the implementation of robotics technology into an organization. A seven step approach to implementing robotics into an organization was used. The seven steps consist of the following:

1) Initial familiarization with the technology.

2) Plant survey to identify potential applications.

3) Selection of the application.

4) Selection of the robot.

5) Detailed economic analysis.

6) Planning and engineering the installation.

7) Installation.

These steps were applied in an actual organization, the IBM Corp. Real-life processes and operations were utilized in proceeding with the seven step approach. Included in …

My Spirit, Kathy Clem

Theses

None provided.

The Impact Of A Quicksetting Ink On Adhesion At The Spine Of An Adhesive Bound Product, Stephen M. Hanchar

Theses

This investigation sought to determine if a quicksetting type lithographic ink printed into the bind edge of an adhesive bound product influences adhesion at the spine in a negative manner. The testing system included four (4) paper lots; two (2) coated and two (2) uncoated, five (5) ink levels; 0.0 to 2.2 (10 percent) solid ink density, and three (3) testing times. Two (2) methods were chosen to test variables. The first was considered a traditional, practical method of binding book blocks which included selected test units that were later pulled from the block. The second method sought to simulate …

The Nature Of Realism, Lauren Anne Maines

Theses

None provided.

Loss Of Female Hormones After Menopause: Effects And Implications, Mary Lou Heilman

Theses

None provided.

Modeling Of Elastic-Viscoplastic Bahavior And Its Finite Element Implementation, Ted Diehl

Theses

A state variable approach is developed to simulate the isothermal quasi-static mechanical behavior of elastic- viscoplastic materials subject to small deformations. Modeling of monotonic/cyclic loading, strain-rate effect, work hardening, creep, and stress relaxation are investigated. Development of the constitutive equations is based upon Hooke's law, the separation of the total strain into elastic and plastic quantities, and the separation of work hardening into isotropic and kinematic quantities. The formulation consists of three coupled differential equations; a power law measuring viscoplastic strain-rate and two first order equations for isotropic and kinematic hardening. Derivation of, behavior of, and use of the model …

Furniture For Children, Sooyun Ahn

Theses

None provided.

Economics Of Library Binding, Marcia I. Canibe

Theses

Since book acquisition funds have become more scarce, libraries are unable to pay higher prices for hard cover books that often circulate the same number of times as less expensive paper back books. Therefore, to increase the number of circulations libraries must send books to be either prebound or rebound. A national survey by the American Library Association (ALA) shows that the average trade book might last only 20 to 25 circulations, but books prebound or rebound according to the LBI standard will last at least 100 circulations. The librarian will have to choose whether to replace deteriorated trade books …

A Quantitative Comparison Of Ion–Deposition Printing For Micr Quality On Bank Checks, In Relation To Other Printing Systems, Marachai Kongboonma

Theses

None provided.

Nexus, Robert Reichhardt

Theses

None provided.

Spine Preparation: Factors Affecting Optimum Linkage Of Paper And Adhesive In Adhesive Bookbinding, Richard Adams

Theses

Adhesive bookbinding, a method of holding trimmed pages together in a book using hotmelt glue, offers rapid binding and curing time, but has the disadvantage of poor glue penetration into the paper edges. A weak binding will result unless good linkage can be made between paper and glue, which is the objective of spine-roughening treatments. Eight spine-roughening treatments from three manufacturers were compared on an uncoated and a coated paper stock, against a control treatment of trimmed paper. Treatments were studied by light- and scanning electron microscopic examination of paper edges and by measurement of the mean page-pull values based …

Building And Testing A Gravure Paper Conformity Tester, Cort Holland

Theses

The gravure industry does not have an inexpensive tester which can accurately predict the behavior of paper on a gravure press. The most acceptable tester currently available is the Parker Print Surf. A "conformity" tester, based on compression of paper into a thin channel, was designed and built. It was compared to the Parker Print Surf and found to be poorer in predicting ability except in the special case of groundwood papers. More study is necessary. Several unusual techniques were used. The first involved running sheets of paper through a web press. This technique had a slight "leading" sample distortion …

A Visual Programming Language For Data Flow Systems, Timothy J. Wilson

Theses

The concept of visual programming languages is described and some necessary terms are defined. The value of visual languages is presented and a number of different visual languages are described. Various issues, such as user interface design, are discussed. As an example of a visual programming language, a graphical data flow programming environment is developed for the Macintosh workstation which functions as a preprocessor to a data flow simulator developed at RIT. Examples are presented demonstrating the use of the language environment. Issues related to the development of the programming environment are described and conclusions regarding the development of visual …

A Study Of Gravure Cell Structure Generated By The Hell Chromagraph 399 Er Laser Scanner Onto A Photopolymer Plastic Gravure Printing Surface, Wichian Ekataksin

Theses

It is known that the gravure process provides the best quality printed materials and the fastest production speed. The gravure process, as a matter of fact, is the only process which can utilize fully digital imaging technology. For instance, the Helio-Klischograph Model K201 and K202 incorporated with the Hell Chromacom System can engrave gravure cylinders directly without using any halftone films or bromides. Hell Co., Ltd., moreover, has been developing the electron beam engraving technique which employs digital imaging technology to engrave gravure cylinders. On the other hand, Crosfield Electronics Co., Ltd. introduced the Lasergravure process which also utilizes digital …

A Comparison Of Staggered Position One Angle Process Color Printing With Four Angle And One Angle Process Color Printing, Blair Richards Jr

Theses

The Staggered Position One Angle method of preparing color separations does not adjust the dot angle for each color. The dot pattern is staggered horizontally or vertically by half a row of dots for each separation maintaining the same angle. The investigation compared the Staggered Position method to the four angle method and to the dot-on-dot method. Newsprint was the substrate, and 65, 85, and 100 lines per inch were the rulings. Experienced judges viewed the representative prints and scored each for sharpness, color variability, and overall acceptance. They were also asked to indicate the evidence of rosette and moire …

A Study Of The Effect Of Surround And Ambient Lighting Conditions On Crt Screen Colors, Diane Ouellette

Theses

The use of CRT monitors as a soft copy proof in color electronic pre-press systems (CEPS) has become common. This has raised some question as to the appropriate viewing conditions for such terminals. This writing discusses the effects of ambient illumination as well as screen surround conditions on optical, psychophysical, and physical characteristics of CRT colors in a complex color field. A review of related literature, specifically those studies of chromatic adaptation, and effects of surround conditions on brightness, hue, and saturation is included. These studies are compared to the experimental data and both an ambient light model and surround …