Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Theses

Discipline
Institution
Keyword
Publication Year
Publication Type

Articles 8341 - 8370 of 10113

Full-Text Articles in Entire DC Network

Image Enhancement And Analysis Of Leukocyte Adhesion, Yee-Ruh Lin May 1991

Image Enhancement And Analysis Of Leukocyte Adhesion, Yee-Ruh Lin

Theses

The image of leukocyte adhesion to microvascular walls in the isolated rat perfused heart model has been observed and processed. Some of the fluorescent labeled leukocytes are barely visible due to microscope focal plane and the motion of objects. The purpose of this thesis is to extract leukocyte from the image of the experimental data using image enhancement and analysis (segmentation) techniques and develop a program to handle automatically counting of leukocytes in a predefined scene.


Automated Determination Of Air Content In Hardened Concrete, Anita R. Navalurkar May 1991

Automated Determination Of Air Content In Hardened Concrete, Anita R. Navalurkar

Theses

An automated system was developed for the microscopic determination of air content and the related parameters in hardened concrete using the principles of Image Analysis and Computer Technology. Slices taken from the concrete specimen were viewed through a microscope with 40X magnification. The magnified image of the concrete slice is digitized by an Image Analyzing Software. Methodologies were developed for analysis of the digitized image and determination of air content and the required parameters. The automated system included a motorized positioner which translated microscope stage in a frame by frame sequence so that the whole image is digitized. Several tests …


Connected Component Labelling On A Pair Of Parallel Systems, Imran Shahid May 1991

Connected Component Labelling On A Pair Of Parallel Systems, Imran Shahid

Theses

Hypercubes and meshes are of the most successful parallel processing structures and are widely used in image processing applications. The mesh is a natural multiprocessor architecture for image processing because an N x N image can be directly mapped onto a mesh of N x N PEs (processing elements), holding each PE responsible for one pixel, with neighboring PEs responsible for neighboring pixels. Thus, local operations can be performed on the image, or local image features can be detected in parallel, with each processor simultaneously accessing its neighbor and computing the appropriate function for its neighborhood. Meshes and several other …


Automated Computer Drafting Of Precision Tooling For Drawing Operation, Basani Venkateswarlu May 1991

Automated Computer Drafting Of Precision Tooling For Drawing Operation, Basani Venkateswarlu

Theses

Based on customer requirements of components, design engineers create the necessary tooling using CAD to produce the exact part desired by the customer. A software package using CARL is developed to help the design engineer to create the drawings of Pinch off Punch and Pinch off for both rectangular/square and round punches. A variety of hole patterns for the punches are automatically created through the software, along with a possibility of selecting one of the standard patterns automatically for a drawing. The drawings are created such that the dimensions and the notes are automatically generated with the input of the …


Androx Implementation Of Nonlinear Filter, Keh-Chao Chu May 1991

Androx Implementation Of Nonlinear Filter, Keh-Chao Chu

Theses

Nonlinear filters, such as morphological operations, play an important role in image processing. Several software implementations of nonlinear filters are presented in this thesis. There may exist more than one method to implement a specific operation. The methods used in this thesis are chosen to be most suited for the machine used according to its structure. These most suited methods are also generally best for software implementations on other machines as well. The machine used here is the Androx image computing workstation.


Tisi2/N+/P Silicon Junction Formation By Ion Implantation Through Metal Technique, Ying Wu May 1991

Tisi2/N+/P Silicon Junction Formation By Ion Implantation Through Metal Technique, Ying Wu

Theses

Experimental analysis, modeling and simulation of the formation and electrical characterization of TiSi2/n+/p-Si shallow junctions are presented here. The formation of shallow n+-p junction, by ion implantation of As+ through Ti films evaporated on p-Si substrates followed by Rapid Thermal Annealing ( RTA ) and conventional furnace annealing has been performed in these experiments. Structural techniques such as Secondary Ion Mass Spectroscopy ( SIMS ) and Rutherford Backscattering spectroscopy ( RBS ) experiments have been employed to characterize the devices, and RUMP simulator was used to analyze and interpret the RBS data. Current-voltage …


Parallel Implementation Of Spatial Domain Image Processing Algorithms On The Mesh Connected Computer Simulator, Adury Devi Prasad May 1991

Parallel Implementation Of Spatial Domain Image Processing Algorithms On The Mesh Connected Computer Simulator, Adury Devi Prasad

Theses

The performance of conventional computers in image processing applications is known to be inadequate due to the enormous computational requirements. Almost all image processing applications can be implemented in parallel. This thesis is the parallel implementation of neighborhood averaging and edge detection by the Sobel and Laplacian operators on the Mesh Connected Computer Computer Simulator (MCCS), a package developed at NJIT to study the behavior of SIMD machines. Expressions for speedup, utilization and efficiency have been derived. Suggestions for further improvements that can be incorporated in MCCS and its instruction set have been made.


Interfacing Plasticating Extruders With Personal Computers For Data Acquisition, Information Analysis And Retrieval Purposes, Gautamkumar Y. Shah May 1991

Interfacing Plasticating Extruders With Personal Computers For Data Acquisition, Information Analysis And Retrieval Purposes, Gautamkumar Y. Shah

Theses

The current manufacturing industries are influenced more and more by computers and automation. Two of the major areas of computer uses are data acquisition and interfacing, both lead towards automation.

The intent of this thesis is to focus on the area of interfacing personal computers with plasticating extruders for information retrieval and storage. The requirements for software and hardware are discussed. Analysis of the stored information can be used to improve the quality of the final product. Implications of the stored parameters on the final product are also discussed. A sample program to store and retrieve the important parameters is …


Graphical User Interface For Image Processing, Kumar Chebrolu May 1991

Graphical User Interface For Image Processing, Kumar Chebrolu

Theses

A user friendly, menu driven, highly interactive X Windows package for Image Processing Applications using Motif Widget Set under Motif Window Manager is developed. Modules related to Segementation, Enhancement, Representation, Transformations are developed. The above routines are useful for image manipulation. The current gray scale/binary image is displayed on the window. Online histogram is provided so that the user can change the threshold value interactively. The OSF/Motif toolkit is used efficiently and also Xlib calls to display the image by allocating colormap. An on-line image manipulation help menu facility is incorparated in the tool to make it more versatile.


Off-Line Programming Using Igrip, Narahari K. Bhandary May 1991

Off-Line Programming Using Igrip, Narahari K. Bhandary

Theses

AT&T's FWS-200 (Flexible Work Station) has been modeled and simulated to implement Off-Line Programming (OLP). IGRIP (Interactive Graphics Robot Instruction Program) from Deneb Robotics, Inc. has been used to simulate the FWS operation.

A GSL(Graphics Simulation Language) program has been used to simulate the chip placements during PCB assembly. The program leads the user through the motions of chip placement, and after the simulation run downloads the motion sequence to the FWS. The animation sequences of the FWS have been downloaded to the FWS on the Factory Floor using a C program, which is utilized to communicate the data to …


Primitive Dreams: In Search Of Judgment, Catherine Lasch Ramdin May 1991

Primitive Dreams: In Search Of Judgment, Catherine Lasch Ramdin

Theses

None provided.


Homelink, Catherine K. Hu May 1991

Homelink, Catherine K. Hu

Theses

None provided.


Pictures Of Pictures And Marks, William Michael Mcclary May 1991

Pictures Of Pictures And Marks, William Michael Mcclary

Theses

None provided.


Self Discovery And Personal Creation, Peggy Kehoe May 1991

Self Discovery And Personal Creation, Peggy Kehoe

Theses

My Thesis project is about self discovery and personal creation. I believe that contemplation and imagination are essential not only to the artist in creating his art, but to every man as he creates his life. I am interested in the primary purpose that art once had; the subtle magic that primitive artists invoked, hoping to protect, to change or to heal the inhabitants of earth. In my paintings, I want the inner world of the mind to marry reality, the two combining as powerful evocations of man's creative potential.


The Beauty Of Multimedia, M. Shan Yeung May 1991

The Beauty Of Multimedia, M. Shan Yeung

Theses

None provided.


Computer Graphics Archive: Prototype 1, Malinda D'Attilio May 1991

Computer Graphics Archive: Prototype 1, Malinda D'Attilio

Theses

None provided.


The Fractal Archive, Diing-Wuu Vale Wu May 1991

The Fractal Archive, Diing-Wuu Vale Wu

Theses

None provided.


A Study Of The Effect Of Lithographic Press Speed On Dot Gain, James B. Mudge May 1991

A Study Of The Effect Of Lithographic Press Speed On Dot Gain, James B. Mudge

Theses

Dot gain is the increase in size of a halftone dot or array of dots that takes place in the stages of reproduction of an image from original film to printing on a substrate. Uncontrolled dot gain is a source of multiple print quality problems including color variation, loss of detail and high waste factors during printing. Several factors have been identified as causes of dot gain. One factor that had not been investigated was the effect of press operating speed on dot gain. The purpose of this investigation is to study the effect that press speed has on dot …


Waiting, Waiting And Waiting, Myoung Lim Lee May 1991

Waiting, Waiting And Waiting, Myoung Lim Lee

Theses

None provided.


Image, Media, And Installation, Chih-Fu Wang May 1991

Image, Media, And Installation, Chih-Fu Wang

Theses

None provided.


Microwave Treatment Of Hazardous Wastes : Chemical Fixation Of Insoluble Non-Volatile, Chemically Non-Reactive Organics In Soil, Naihong Zhu Apr 1991

Microwave Treatment Of Hazardous Wastes : Chemical Fixation Of Insoluble Non-Volatile, Chemically Non-Reactive Organics In Soil, Naihong Zhu

Theses

Microwave treatment of hazardous wastes like dioxin-contaminated soil potentially fills a great need for a remediation technology which potentially can be applied in-situ: the EPA has concluded from a risk assessment study that it is the excavation and transportation of such wastes that poses the greatest risk. Studies have been carried out on a surrogate for dioxin, namely, 9,10-anthraquinone because it has similar chemical and physical properties but it is not toxic. It was found in microwave treatment studies that, at temperatures attainable in-situ, anthraquinone became non-extractable. A model was proposed which postulated that as water was removed from soil …


Vermillion Years, Fouad Ghazzaoui Apr 1991

Vermillion Years, Fouad Ghazzaoui

Theses

None provided.


Interculturism, Shigeki Ito Apr 1991

Interculturism, Shigeki Ito

Theses

None provided.


Adhesion Of Sputtered Copper To Plasma-Treated Polyimide Substrates, Jong-Bong Ma Apr 1991

Adhesion Of Sputtered Copper To Plasma-Treated Polyimide Substrates, Jong-Bong Ma

Theses

We have studied the adhesion of a sputtered copper film (thickness 5000 Angstroms) to flexible polyimide substrates between 1 mil and 5 mil thick. The polyimide types include Kapton (based on the monomers of pyromellitic dianhydride and oxydialine, i.e., PMDA-ODA) and Upilex (based on the bi-phenyl tetracarboxylic dianhydride monomer). (A. S. Wood, 1988) For each of these polyimides, a clear difference in adhesion is observed when the polymer surface has been treated with a simple AC nitrogen glow discharge. We used a tape test to estimate the strength of the adhesion bond. The difference in adhesion only becomes apparent after …


Quadtree Algorithms For Image Processing, Jim Benjamin Isaac Mar 1991

Quadtree Algorithms For Image Processing, Jim Benjamin Isaac

Theses

The issue of constructing a computer-searchable image encoding algorithm for complex images and the effect of this encoded image on algorithms for image processing are considered. A regular decomposition of image (picture) area into successively smaller bounded homogeneous quadrants is defined. This hierarchical search is logarithmic, and the resulting picture representation is shown to enable rapid access of the image data to facilitate geometric image processing applications (i.e. scaling, rotation), and efficient storage. The approach is known as quadtree (Q-Tree) encoding. The applications in this thesis are primarily to grayscale pixel images as opposed to simple binary images.


Negative Feedback Control Of The Visual System And Systematic Color Vision Model, Yan Liu Feb 1991

Negative Feedback Control Of The Visual System And Systematic Color Vision Model, Yan Liu

Theses

This thesis presents a physiological hypothesis of a systematic negative feedback control mechanism of the human visual system and a corresponding systematic color vision model. This model is based on the physiological hypothesis of systematic negative-feedback control of the visual system and both the stage color vision theory and Land's theory. According to this systematic color vision model, the color vision is processed as described by the stage theory, the negative feedback of the visual system adjusts the sensitivities of the cone photoreceptors and controls the visual system to adapt to the visual surroundings . The dynamic ranges of relative …


Fault Tolerant Clos Network, Preet Mohan S. Ahluwalia Jan 1991

Fault Tolerant Clos Network, Preet Mohan S. Ahluwalia

Theses

Multistage interconnection networks, or MINs, provide paths between functional modules in multiprocessor systems. The MINs are usually segmented into several stages. Each stage connects inputs to appropriate links of the next stage so that the cumulative effect of all the stages satisfies input-output connection requirements.

This thesis deals with a fault tolerant Clos network. The fault tolerance technique involves addition of extra switches per stage to compensate for any switch failure The reliability analysis of both ordinary and fault tolerant Clos networks is presented. The optimal number of extra switches required to get the best reliability results has been analyzed.


Development Of Techniques Of Artificial Intelligence In Identifying The Different Machined Surfaces, Yi-Ching Chou Jan 1991

Development Of Techniques Of Artificial Intelligence In Identifying The Different Machined Surfaces, Yi-Ching Chou

Theses

This thesis deals with the identification of different machined surfaces with artificial inteligence techniques. There are five kinds of machining operations: grinding, turning, milling, EDM and waterjet which determine the characteristics of resulting surfaces. Topology of various specimens is measured using the surfanylizer. Twenty one parameters are extracted from the measurements to describe the characteristics. In this thesis, we develop neural and expert systems that recoginize and classify surfaces according to the machining methods.


Information Handling System With A Personal Computer To Assist In The Manufacturing Of Plastic Parts, Yi Chung Jan 1991

Information Handling System With A Personal Computer To Assist In The Manufacturing Of Plastic Parts, Yi Chung

Theses

The ongoing personal computer development has led to its increasing application in manufacturing to improve productivity. Being more aware of this technology, most of these benefits have accrued to large firms. The intent of this thesis is to show that it is equally advantageous for small manufacturing companies to utilize them and show how they can do so.

The field of production control systems is discussed and those areas where personal computers can be applied are emphasized. Forecasting, warehouse management, material requirement planning, and inventory control are the most appropriate. An application example using dBase III plus to write the …


Tri-Color Led Display System Using Microcontroller, Costakis A. Constantinou Jan 1991

Tri-Color Led Display System Using Microcontroller, Costakis A. Constantinou

Theses

A seven-by-forty-eight tricolor LED display panel is designed and built around the 68HC11 MCU.

Four bilateral switching transistors (4066) are used in a Wien bridge configuration to drive each tri-color LED. With this circuitry one is able to drive the tricolor LED symmetrically. An alternative design that uses only two switching transistors is also offered.

A software program was developed to output on the display scrolling and fixed messages. Each message could be displayed in a different color (Red, Green and Yellow) and at a different speed (Slow, Fast, and Medium). The program also includes an editor with insertion and …