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Decision Support Tool For Costing Of The Pultrusion Process, Taher Badrudin Patrawala
Decision Support Tool For Costing Of The Pultrusion Process, Taher Badrudin Patrawala
Graduate Theses, Dissertations, and Problem Reports
The use of advanced composites has grown over the last two decades. These high strength, low weight materials can now be found in many structural applications, including bridges. However, the substitution of plastics for conventional materials, such as steel, is governed by engineering constraints and cost competitiveness. A brief discussion of the process variables and engineering constraints is presented in the first chapter. To analyze the latter and to identify cost centers in production more readily, a computerized cost model was developed. This model estimates the cost of producing components by the pultrusion process.;The technical cost modeling methodology employed involves …
Tissue Thickness Measurement Tool For Craniofacial Reconstruction, Hari Kinan Gopal Boddupalli
Tissue Thickness Measurement Tool For Craniofacial Reconstruction, Hari Kinan Gopal Boddupalli
Graduate Theses, Dissertations, and Problem Reports
Craniofacial Reconstruction is a method of recreating the appearance of the face on the skull of a deceased individual for identification purposes. Older clay methods of reconstruction are inaccurate, time consuming and inflexible. The tremendous increase in the processing power of the computers and rapid strides in visualization can be used to perform the reconstruction, saving time and providing greater accuracy and flexibility, without the necessity for a skillful modeler.;This thesis introduces our approach to computerized 3D craniofacial reconstruction. Three phases have been identified. The first phase of the project is to generate a facial tissue thickness database. In the …
Verification And Validation In Software Product Line Engineering, Edward Alton Addy
Verification And Validation In Software Product Line Engineering, Edward Alton Addy
Graduate Theses, Dissertations, and Problem Reports
Verification and Validation (V&V) is currently performed during application development for many systems, especially safety-critical and mission-critical systems. However, the V&V process has been limited to single system development. This dissertation describes the extension of V&V from an individual application system to a product line of systems that are developed within an architecture-based software engineering environment.;In traditional V&V, the system provides the context under which the software will be evaluated, and V&V activities occur during all phases of the system development lifecycle. The transition to a product line approach to development removes the individual system as the context for evaluation, …
Java Challenge Software Project, Karuna Annavajjala
Java Challenge Software Project, Karuna Annavajjala
Graduate Theses, Dissertations, and Problem Reports
Programming contests are a means of exploiting the problem solving capabilities of developers and they provide a forum for display of extraordinary programming skills. The Java Challenge (JC) Software Project is the saga of creating an automated, secure and responsive programming contest system for deployment on the Internet and to collect information about programming practices, habits, and trends in coding in such restricted environment. The methodology followed to design, implement, and evaluate such a system uses new technologies such as the WWW, mail filtering and sandboxing techniques. The current Java Challenge implementation runs the Java Challenge on a Solaris 2.6 …
Integration Of Chicory Components And Chicory Optimization, Avinash Venkatesh Kalgi
Integration Of Chicory Components And Chicory Optimization, Avinash Venkatesh Kalgi
Graduate Theses, Dissertations, and Problem Reports
Software is not built as monolithic structure. It is built in blocks by more than one person. This software then has to be put together and made to work. It is also important to ensure that the assembled software is performing optimally.;Chicory(TM) is such a Java(TM) software. It is made of numerous components, made by a lot of different people.;This thesis explores the complications associated with integrating these components. This is achieved by an exhaustive description of the architecture of the components and a detailed description of the design decisions. It explains in detail the interactions between various objects inside …
Design And Development Of Fuzzy Expert System For Handy Board, Aditya Kumar Singh
Design And Development Of Fuzzy Expert System For Handy Board, Aditya Kumar Singh
Graduate Theses, Dissertations, and Problem Reports
The recent trend in global manufacturing scenario has resulted in the emergence of many innovative techniques that have revolutionized the manufacturing industry as a whole. A lot of states of art advances have been associated with the increasing use of microprocessors in advance manufacturing systems. Out of many the one, which has predominantly captured the real time, behavioral use is the Fuzzy Logic.;Fuzzy logic implementation in real time environment involves the integration of multi-disciplinary area like computer engineering, mechanical and electronic systems tailored towards smart systems that enable a very precise control on the process. The fuzzy logic based project …
Regressive Model Approach To The Generation Of Test Trajectories, Brian James Taylor
Regressive Model Approach To The Generation Of Test Trajectories, Brian James Taylor
Graduate Theses, Dissertations, and Problem Reports
One possible method of reliability assurance is the application of large testing sets upon a system via statistical reliability assessment. Under this method, a software system's operations are tested according to their actual usage. A problem with this approach is the large number of tests required to properly assess reliability. Complicating the process are situations where an input into the system is a trajectory of data, where a trajectory is defined as a series of data points with each point relying upon the previous points. Examples of trajectories of data include an airplane's flight path or data describing a nuclear …
Electronic Commerce On Business Application, Fang Xiao
Electronic Commerce On Business Application, Fang Xiao
Student Work
For some time now, Whole size business enterprises have used electronic commerce to conduct their business activities. The On-Line store is one of a number of popular web applications. This thesis focuses on one of the emerging On-Line store technologies which is known as Server-Side Java Application. In early 1960, private networks were dedicated for the use of electronic data interchange (EDI) and electronic funds transfer (EFT) in banking business. Recently, however, with the increased awareness and popularity of the Internet, electronic commerce has come to encompass individual consumers as well as businesses of all size. For most people, electronic …
Automatic Selection Of Optimal Window Size And Shape For Texture Analysis, Joseph Edmund Glotfelty
Automatic Selection Of Optimal Window Size And Shape For Texture Analysis, Joseph Edmund Glotfelty
Graduate Theses, Dissertations, and Problem Reports
This thesis is a theoretical and empirical examination of the relationship between texture and scale, and its effects on image classification. This study involved creating a model that automatically selected windows of optimal size according to the location of a pixel within a land cover region and the texture of the surrounding pixels. Large windows were used to get a representative sample of within-class variability in the interior of these regions. Smaller windows were used near the boundaries of land cover regions in order to reduce "edge effect" errors due to between-class variability. This program was tested using a Maximum …
Broadcasting In Grid Graphs, Iwona Wojciechowska
Broadcasting In Grid Graphs, Iwona Wojciechowska
Graduate Theses, Dissertations, and Problem Reports
This work consists of two separate parts. The first part deals with the problem of multiple message broadcasting, and the topic of the second part is line broadcasting. Broadcasting is a process in which one vertex in a graph knows one or more messages. The goal is to inform all remaining vertices as fast as possible. In this work we consider a special kind of graphs, grids.;In 1980 A. M. Farley showed that the minimum time required to broadcast a set of M messages in any connected graph with diameter d is d + 2(M - 1). This work presents …
Various Pushing Methods On Grid Graphs, Jiaxin Wang
Various Pushing Methods On Grid Graphs, Jiaxin Wang
Graduate Theses, Dissertations, and Problem Reports
This thesis describes algorithms for determining if a grid of switches can be turned into all-off state from any initial configuration by various methods of activation operation (push). Among these push methods, besides the regular "+" push, "+" push with no center, "X" push, "X" push with no center, and a "V"-typed unbalanced push are studied. The research methods used in this work are mainly linear algebra and algorithm analysis. Results obtained include that the grid m x n is completely solvable with push "+" no center, if and only if co-prime (m+1, n+1).
Mission Planning And Remote Operated Vehicle Simulation In A Virtual Reality Interface, Christopher Samuel Allport
Mission Planning And Remote Operated Vehicle Simulation In A Virtual Reality Interface, Christopher Samuel Allport
Graduate Theses, Dissertations, and Problem Reports
Virtual reality simulations are finding applications in a wide range of disciplines such as surgical simulation, electronics training, and crime scene investigation. During the Mars Pathfinder Mission, in summer 1997, NASA scientists unveiled a new application of virtual reality for the visualization of a planetary surface. The success of this application led to a more concentrated effort for using virtual reality visualization tools during future missions. The thrust of this effort was to develop a new interface which would allow scientists to interactively plan experiments to be performed by the mission robots. This thesis covers two of the primary aspects …
Robot Navigation Using Ultrasonic Feedback, Akihiko Baba
Robot Navigation Using Ultrasonic Feedback, Akihiko Baba
Graduate Theses, Dissertations, and Problem Reports
This thesis presents an autonomous navigation program for West Virginia University's mobile robot platform ANT. The program allows the ANT to find a predefined goal by comparing sensor data with a given map of the environment. ANT's ultrasonic sensors were used to sample the surroundings continuously, and this information was combined with dead reckoning data to build a two-dimensional map of the environment. Borenstein's Histogramic In-Motion Mapping technique was used to build sensor maps, which were analyzed to find features such as walls and corners. The features were matched with features in the given map to correct dead reckoning errors. …
Independent Verification Of Specification Models For Large Software Systems At The Early Phases Of Development Lifecycle, Khalid Lateef
Independent Verification Of Specification Models For Large Software Systems At The Early Phases Of Development Lifecycle, Khalid Lateef
Graduate Theses, Dissertations, and Problem Reports
One of the major challenges facing the software industry, in general and IV&V (Independent Verification and Validation) analysts in particular, is to find ways for analyzing dynamic behavior of requirement specifications of large software systems early in the development lifecycle. Such analysis can significantly improve the performance and reliability of the developed systems. This dissertation addresses the problem of developing an IV&V framework for extracting semantics of dynamic behavior from requirement specifications based on: (1) SART (Structured Analysis with Realtime) models, and (2) UML (Unified Modeling Language) models.;For SART, the framework presented here shows a direct mapping from SART specification …
Four-Stage Activity-Based Costing (Abc) System Modeling And Computer-Based Application Design, Jianxin Zhu
Four-Stage Activity-Based Costing (Abc) System Modeling And Computer-Based Application Design, Jianxin Zhu
Graduate Theses, Dissertations, and Problem Reports
A Four-Stage Activity-Based Costing (4ABC) model and a computer-based system are created in this research to demonstrate the ABC cost allocation process. 4ABC uses four different levels of activity cost driver to allocate the cost from resource to product. These cost drivers are Resource-to-Department Cost Driver, Department-to-Function Cost Driver, Function-to-Activity Cost Drivers and Activity-to-Product Cost Driver. CoA is then categorized into four different activity levels: Department, Function, Activity and Product. The goal is to estimate how much cost represented by activities that a certain type of product absorbs. 4ABC model can trace both indirect cost and direct cost together at …
Development Of A Decision Support System For Assessment Of Mobile Bridges, Vikram Ramamoorthy
Development Of A Decision Support System For Assessment Of Mobile Bridges, Vikram Ramamoorthy
Graduate Theses, Dissertations, and Problem Reports
The development of a prototype Decision Support System (DSS) for the condition assessment of the Armored Vehicle Launched Bridge (AVLB) has been demonstrated in the current work. AVLB is a mobile bridge that has been used by the US Army for tank and assault vehicle crossing. It is employed for spanning short gaps of 50 feet or less in the terrain. The condition assessment of such bridges, to ensure safety of personnel and tank, is of strategic importance. The methodology of the prototype DSS is based on a refined visual inspection procedure and a previously established vibration measurement technique.;Conforming to …
In -Cylinder Combustion -Based Virtual Emissions Sensing, Michael L. Traver
In -Cylinder Combustion -Based Virtual Emissions Sensing, Michael L. Traver
Graduate Theses, Dissertations, and Problem Reports
The development of a real-time, on-board measurement of exhaust emissions from heavy-duty engines would offer tremendous advantages in on-board diagnostics and engine control. In the absence of suitable measurement hardware, an alternative approach is the development of software-based predictive approaches. This study demonstrates the feasibility of using in-cylinder pressure-based variables as the inputs to predictive neural networks that are then used to predict engine-out exhaust gas emissions. Specifically, a large steady-state engine operation data matrix provides the necessary information for training a successful predictive network while at the same time eliminating errors produced by the dispersive and time-delay effects of …
Formalization Of Storage Considerations In Software Design, Lakshminarasimha Reddy Ankireddipally
Formalization Of Storage Considerations In Software Design, Lakshminarasimha Reddy Ankireddipally
Graduate Theses, Dissertations, and Problem Reports
One of the technical impediments for the widespread adoption of the formal methods is an inability to address storage-related concerns such as "out of memory" errors. The focus of this dissertation is on formal specification and modular reasoning of storage-related aspects of practical components and systems. In particular, this thesis tries to address the following fundamental storage-related questions for practical component-based software development (1) Is it possible to reason statically and in a modular fashion that the system would not run "out of memory"? (2) Is it possible for the reasoning system to be modular, yet sufficiently precise with respect …
Some Studies On Shape Of Dot Patterns., Anirban Ray Chaudhuri Dr.
Some Studies On Shape Of Dot Patterns., Anirban Ray Chaudhuri Dr.
Doctoral Theses
The important visual characteristics of an object are shape, size, color, brightness, contrast and texture. Of them, shape is a multidimensional concept that is difficult to define. It takes different meanings in different contexts. We try to explain it in terms of their attributes like elongation, roundness, and symmetry: although these terms do not capture the complete notion of shape.Perhaps Gestalt theory Koffka 351 is the first attempt to study the principles of visual perception in a systematic manner. The central concept of this theory is Gestalt' which means form or configuration. In this theory form is examined from physical. …
Muyltivariate And Regression Analysis Based On The Geometry Of Data Clouds., Biman Chakraborty Dr.
Muyltivariate And Regression Analysis Based On The Geometry Of Data Clouds., Biman Chakraborty Dr.
Doctoral Theses
Median is a natural estimate of location of a data set, and there are several versions of inultivariate median studied in the literature, each of which is an interesting descriptive statistic for multivariate data and provides some nice geometric insights into the data cloud. One would expect that multidimensional median will be a natural estimate for the center of symmetry of a multivariate distribution. However, there is no unique concept of symmetry in multivariate problems. The center of symmetry can be defined in several ways there. For example, the d-dimensional random variable X is spherically symmetric about e €Rd if …
Pattern Classification Using Genetic Algorithms., Sanghamitra Bandyopadhyay Dr.
Pattern Classification Using Genetic Algorithms., Sanghamitra Bandyopadhyay Dr.
Doctoral Theses
Pattern recognition and machine learning form a major area of research and develop- ment activity that encompasses the processing of pictorial and other non-numerical information obtained from the interaction between science, technology and society. A motivation for the spurt of activity in this field is the need for people to com- municate with the computing machines in their natural mode of communication. Another important motivation is that the scientists are also concerned with the idea of designing and making intelligent machines that can carry out certain tasks that we human beings do. The most salient outcome of these is the …
Restructuring Object -Oriented Designs Using A Metric-Driven Approach., Ghassan Salim Alkadi
Restructuring Object -Oriented Designs Using A Metric-Driven Approach., Ghassan Salim Alkadi
LSU Historical Dissertations and Theses
The benefits of object-oriented software are now widely recognized. However, methodologies that are used to develop object-oriented software are still in their infancy. There is a lack of methods to assess the quality of the various components that are derived during the development process. The design of a system is a crucial component derived during the system development process. Little attention has been given to assessing object-oriented designs to determine the goodness of the designs. There are metrics that can provide guidance for assessing the quality of the design. The objective of this research is to develop a system to …
Design Recovery And Data Mining: A Methodology That Identifies Data-Cohesive Subsystems Based On Mining Association Rules., Carlos Montes De Oca
Design Recovery And Data Mining: A Methodology That Identifies Data-Cohesive Subsystems Based On Mining Association Rules., Carlos Montes De Oca
LSU Historical Dissertations and Theses
Software maintenance is both a technical and an economic concern for organizations. Large software systems are difficult to maintain due to their intrinsic complexity, and their maintenance consumes between 50% and 90% of the cost of their complete life-cycle. An essential step in maintenance is reverse engineering, which focuses on understanding the system. This system understanding is critical to avoid the generation of undesired side effects during maintenance. The objective of this research is to investigate the potential of applying data mining to reverse engineering. This research was motivated by the following: (1) data mining can process large volumes of …
Enhancing The Process Of Testing Object -Oriented Systems., Ihssan Salim Alkadi
Enhancing The Process Of Testing Object -Oriented Systems., Ihssan Salim Alkadi
LSU Historical Dissertations and Theses
Testing is a crucial step in the overall system development process. Using testing techniques that support features of the underlying software paradigm more effectively tests program than do testing techniques that support features of other paradigms. Systems developed with the object-oriented paradigm require techniques that support object-oriented features such as inheritance, data abstraction, encapsulation, and dynamic binding. Many techniques that are used to test systems developed with the structured paradigm are not sufficient for the testing of object-oriented systems. The goal of this research is to develop methods that will improve the process of testing object-oriented systems. Specifically, emphasis is …
Classification Of Text Documents Using A Logical Analysis Approach., Salvador Nieto Sanchez
Classification Of Text Documents Using A Logical Analysis Approach., Salvador Nieto Sanchez
LSU Historical Dissertations and Theses
The main problem investigated in this dissertation is as follows: Given are two samples of documents each from one of two disjoint collections of documents. The question is how to obtain a set of patterns of text features that make a document in the two samples (and other unclassified documents) to be classified correctly in one and only one document class. A sample of 2,897 documents from the TIPSTER collection was used to investigate this problem. This problem was divided into the following four subproblems. The first subproblem consists of identifying the set keywords to describe the documents' content. Computational …
An Adaptive Hierarchical Fuzzy Logic System For Modelling And Prediction Of Financial Systems, Mark Kingham
An Adaptive Hierarchical Fuzzy Logic System For Modelling And Prediction Of Financial Systems, Mark Kingham
Theses: Doctorates and Masters
In this thesis, an intelligent fuzzy logic system using genetic algorithms for the prediction and modelling of interest rates is developed. The proposed system uses a Hierarchical Fuzzy Logic system in which a genetic algorithm is used as a training method for learning the fuzzy rules knowledge bases. A fuzzy logic system is developed to model and predict three month quarterly interest rate fluctuations. The system is further trained to model and predict interest rates for six month and one year periods. The proposed system is developed with first two, three, then four and finally five hierarchical knowledge bases to …
Embeddability Of Pseudoline Arrangements And Point Configurations To Eucliean Plane, Javid Huseynov
Embeddability Of Pseudoline Arrangements And Point Configurations To Eucliean Plane, Javid Huseynov
Theses
The present thesis explores embeddability (realizability) properties of pseudoline arrangements, perhaps, the most important mathematical structures in computational geometry. The underlying theme is the use of combinatorial representation of arrangements vs. usual geometric representation to approach the embeddability problem. The combinatorial representation chosen is that of counterclockwise systems (CCsystems) introduced by D.E. Knuth in 1992. CC systems were defined as sets of ordered triples of points that incorporate and obey counterclockwise relations on points in the plane. If a CC system can arise from actual points in the plane, it is called realizable. Not all CC-systems are realizable in plane, …
Combinatorial Computing Approach To Selected Extremal Problems In Geometry, Alina Beygelzimer
Combinatorial Computing Approach To Selected Extremal Problems In Geometry, Alina Beygelzimer
Theses
Not provided.
Genetic Algorithm And Tabu Search Approaches To Quantization For Dct-Based Image Compression, Michael Champion
Genetic Algorithm And Tabu Search Approaches To Quantization For Dct-Based Image Compression, Michael Champion
Theses
Today there are several formal and experimental methods for image compression, some of which have grown to be incorporated into the Joint Photographers Experts Group (JPEG) standard. Of course, many compression algorithms are still used only for experimentation mainly due to various performance issues. Lack of speed while compressing or expanding an image, poor compression rate, and poor image quality after expansion are a few of the most popular reasons for skepticism about a particular compression algorithm. This paper discusses current methods used for image compression. It also gives a detailed explanation of the discrete cosine transform (DCT), used by …