Digital Commons Network^™

Senior Japanese Tourists To Taiwan And Their Marketing Potential: A Case Study, Nai-Chieh Jessie Chen

Theses

For decades, Taiwan's tourism industry enjoyed the great number of Japanese visitors until a few years ago, when the growth rate slowed and even declined. This decline was caused by several factors such as rising price, high appreciation of the New Taiwan dollar, inconvenient visa application procedures, limited airline seats, rising public disorder, and strong competition from neighboring countries. With much money to spend the Japanese tourists were the most welcome group to the world tourism industry. The senior (50 years and older) members among them, in increasing quantity and good financial ability, have become even more desirable among the …

Silent Walkie-Talkie: A Toy For Deaf Children, Roberto P. Acosta

Theses

Not Included

Analytical Methodology For Atm Control Panel Design, Donald C. Johnson

Theses

This thesis presents a methodology for control panel design and layout along with a case study of an automated teller machine (ATM). A predictive model of human endurance and fatigue is developed from anthropometric, biomechanical and kinematics research. The layout problem is formulated to assign controls to locations to minimize the fatigue imposed on an operator performing a known set of tasks. A family of optimal and near-optimal layouts are found using conventional algorithms. The final hardware design refinements are suggested by human factors concerns. Ergonomic guidelines are also proposed for software aspects of the design. The methods and guidelines …

Editing Digital Audio Using A Perceptual Model, J. Mark Goode

Theses

In this paper we describe an intelligent system used to aid an audio recording producer in the selection of edit points in a musical sequence. It is possible to make meaningful recommendations concerning auditory input data without the ability to fully classify that data or interpret all outside goals. Perceptual modeling of the auditory input can allow sufficient reasoning ability for an intelligent system to be of use editing digital audio. To create a perceptual model, the information which can be extracted by the ear is embodied in several expert sections which communicate with a rule based decision maker via …

A Case Study On Petri Net Modeling, Animation, And Simulation, Suresh C. Gurala

Theses

Petri nets as a graphical tool has developed over the last decade into a suitable model for representing, modeling, designing, analyzing and studying concurrent systems. In this thesis, Petri nets are applied for analyzing, modeling and simulation of a flexible assembly station. An existing AT&T FWS200 flexible assembly workstation for printed circuit board is modeled using Petri nets without the consideration of insertion failures and other abnormalities in the system. The Petri net model is then simulated using Graphics simulation language (GSL).

Advanced Manufacturing Applications Of Cost Estimating Techniques For Metal Cutting Industries, Zubair Hamid

Theses

In this work, different cost estimating techniques in metal cutting industry were studied. A basic understanding of estimation concepts were given. The typical breakdown of total cost was also given and discussed in details. Practical applications of cost estimating is studied. The effect of different parameters which relate to the lot sizes or quantity were discussed. All these results show that total cost is minimum at a point which is called least cost point, after that cost increases because of the addition of extra resources, in terms of man, machine and increase in administrative expenses.

Design For Manufacturability (Computer Aided Optimum Gear Design), Narayan R. Mareddy

Theses

Design for manufacturing has design as the first manufacturing step. It is important to recognize the importance of design clubing with manufacturing to reduce the production, set up time. In this thesis concepts of design, manufacturing and four different ways of bringing design and manufacturing together are discussed in detail.

As there are large number of variables in the gear rating equations, it is very difficult to achieve optimum design by manual methods unless an extensive trial and error process is carried out. An algorithm has been developed which allows rapid convergence to the optimum gear design. The algorithm has …

Implementing Computer Numerical Control Machine Tools In A Job Shop Environment, Rajesh Shah

Theses

Computer Numerical Control is one important phase to overall application of computer on the shopfloor. Today a large variety of CNC machine tools are offered by manufacturer following different standards. This thesis is organized with the purpose of comparing various technical and economical considerations for CNC machine tool purchase and application. The main purpose of study is to mention various features of CNC machine tools and its possible integration which can reduce product lead time and improve quality. General replacement minimum cost model is discussed with case study for economic justification of machine purchase. While discussing technical features emphasis is …

A Graphical Tool For The Simulation Of Timed Petri Nets, Javaid Aslam Siddiqi

Theses

A highly interactive graphical tool is developed for the drawing and simulation of discrete event systems involving time constraints. The Timed Petri Net Simulator tool (TPNS) is capable of simulating systems with deterministic and stochastic delays. Performance and utilization parameters are collected during simulation for behavior and analysis purposes. Simulation results are stored in different files (log, verify, utilize, and mark). Conflict resolution on the basis of priority or random selection of multiple transitions in conflict is implemented to handle complex modeling situations. A user friendly interface is developed for effective interaction between the tool and the user. This interface …

Communications Network For Distributed Real-Time Systems, Charles Silva

Theses

No abstract provided.

A Study Of The Potential Funding Mechanism For Surface Transportation In The New York Metropolitan Region, Krishnaveni Venkataswami

Theses

The present network of highways, soaring bridges, airports, seaports, and transit systems that serve the New York Metropolitan region are part of this region's inheritance from the generation of Americans who built them before us. These massive and sometimes daring achievements supported the economic growth of the region. Now that inheritance is in danger. The quality of the region's transportation infrastructure is barely adequate to fulfill current requirements, and insufficient to meet the demands of future economic growth and development. We are spending our inheritance.

A major problem is financial. Overall investment in transportation has slowed down in the last …

Software Development For Analysis Of Stochastic Petri Nets Using Transfer Functions, Aman U. Jamwal

Theses

This thesis research is an implementation of a closed-form analytical technique for study, evaluation and analysis of Stochastic Petri Nets (SPN). The technique is based on a theorem that an isomorphism exists between an SPN and a Markov Chain. The procedure comprises five main steps: reachability graph generation of the underlying Petri net, transformation of the reachability graph to a state machine Petri net, calculation of transfer functions, computation of equivalent transfer functions via Mason's rule, and computation of performance parameters of the SPN model from the equivalent transfer functions and their derivatives. The software is developed in UNIX using …

Computer Aided Design Of A Broadband Microwave Power Divider, Jaideep Mukherjee

Theses

The purpose of this thesis to provide alternative design procedure for a power divider that has broadband characteristics. The Wilkinson power divider consisting of cascaded quarter wave sections is known to increase the bandwidth while maintaining high isolation and good match conditions at individual ports. Resistors placed between the quarter wave sections served to increase isolation. The values of required components were determined using odd and even mode analysis. In this work, the approximate theory developed previously is used as a preliminary design model, and it is extended further by considering optimization techniques and coupling between adjacent arms. This novel …

Fast Arithmetic Operations On The Hypercube Using Conditional Sum Addition And Modified Booth's Algorithm, Umar Bin Iftikhar

Theses

Algorithms for fast arithmetic operations (i.e., addition and multiplication) on the hypercube computer are presented. The hypercube network of dimension d interconnects N = 2^d processors in such a way that each processor is directly connected to d neighboring processors; m order to communicate between processors, the maximum length of the path is d. The addition algorithm is based on the conditional sum technique. The computational time using this algorithm is O(log₂ N+q) where q is the number of the bits per processor in the hypercube of N processors. Operands of size N*q are distributed among the hypercube …

Realization Of High-Speed Carry Propagation For Addition And Multiplication Using The Redundant Binary System On The Mesh And Hypercube Connected Structures, Anil Rana

Theses

The extensive development of large-scale digital computers has naturally been accompanied by a corresponding development of techniques for fast arithmetic operations. Addition is the basis for the majority of the other arithmetic operations and most of the required time is due to carry propagation delay. Various algorithms have been proposed for fast addition and multiplication. The algorithms proposed here use the redundant binary system and are designed for the mesh structure. The algorithms are very efficient for the addition and multiplication of long operands. The algorithms can also be implemented on the hypercube. The n-dimensional hypercube is a highly concurrent …

A Color Petri Net Simulation Tool, Sanjaykumar V. Desai

Theses

A user friendly, modular and highly interactive graphical tool for drawing, editing and simulating color Petri nets is developed. The tool is designed to model concurrent and interlocked systems, such as flexible manufacturing systems, communication protocols and computer systems. A Color Petri Net(CPN) has a more concise graphical system representation than a standard Petri net, because net entities in CPN carry information. The CPNS(Color Petri Net Simulation) tool simulates a net having conflicts, reveals deadlocks, and creates a log file with the state history of the system yielding performance measures.

Development Of Cellular Manufacturing Systems For Overall Production Efficiency, Srinivas Lokula

Theses

For years the industrial job shop is facing an increase in complexity and decline in productivity due to increase in parts mix, volume of parts, plant size, machine production rates and part complexity. The development of Group Technology and Cellular Manufacturing seeks to eliminate or minimize complexity and to maximize productivity.

Cellular manufacturing is the physical division of job shop's manufacturing machinery into production cells. Each cell is designed to produce parts requiring similar machinery and machine operations. Cellular manufacturing is one of the best manufacturing techniques to support Just In Time manufacturing and Total Quality Management.

This thesis work …

Handling Of Glass Mat Thermoplastic From Manufacturing Station To Heating Station To Molding Machine, Ramulu Srinivas Neela

Theses

GMT composite sheets are a family of continuous glass fiber roving impregnated with thermoplastic resin with parts formed by compression molding. Significance of GMT sheets comes by its cost-effective performance sufficient to penetrate automotive, industrial, construction, and other markets not willing to pay for higher cost, fiber-reinforced composite systems. GMTs in comparison to traditional sheet metals and sheet molding compounds (SMCs) are lighter, corrosion resistant, require no special storage, exhibit faster cycle times, require no chemical reaction, produce less scrap, possess recycling benefits, are ready for painting, and exhibit maximum opportunities for parts consolidation due to exceptional strength, formability, lower …

Study Of A Non-Contact Gaging System Of Inspection, Gordhanbhai Ketan Patel

Theses

The quality control function has traditionally been performed using manual inspection methods and statistical sampling procedures. Manual inspection is generally a time - consuming procedure which involves precise, yet monotonous work. It often requires that parts be removed from the vicinity of the production machines to a separate inspection area. This causes delays and often constitutes a bottleneck in the manufacturing schedule.

As a solution to the above problem a Non - Contact Gaging System developed by Optical Gaging Products, Inc., has been used here to study the feasibility of using an automated inspection system and a procedure of developing …

A Study In Systems Integration Architecture, Sashidhar M. Prasad

Theses

This Thesis studies the two architectures OSCA and ANSA which support the ODPSE principle in the first two parts. In the third part the framework for integrating these two architectures is described. The idea of integration architectures in relation to open architectures is studied using the enabling technologies.

Computer-Aided Process Planning (Capp) Sorich, Sohail Pirzada

Theses

The last two decades have witnessed the increasing role of the computer in the process planning function. This has been further enhanced by the advent of the knowledge based expert system, and its impact on Computer Aided Process Planning (CAPP). CAPP has emerged as a strategic link between design and manufacture. This thesis discusses the various methods used in the process planning function. Group Technology (GT) plays a pivotal role in establishing CAPP. The utilization of Artificial Intelligence techniques in CAPP is listed. This study also presents an Interactive Software adaptive to product/part configuration variables.

Redesign Of Parts And Simulation Of Flexible Assembly Cell For Safety Water Shower Assembly, Balraj Y. Gardilla

Theses

A Design for Assembly (DSA) method is used to analyze the safety water shower assembly and to redesign the components with emphasis on meeting the criteria of allowing for flexible Assembly Cell (FAS). An Expert System is developed to select the right Assembly using VP-Expert. This thesis contrasts the old and new safety water shower assembly designs and describes the design of a final Flexible Assembly Cell. A PUMA 550 robot was investigated for use in the cell design. The flexible Assembly cell is simulated on silicon graphics using the IGRIP software. The economics of each part presentation method is …

Error Detection And Correction In Compressed Data, Nadir Sezgin

Theses

Encoded data is very sensitive to the channel errors. Especially if the data is compressed by Arithmetic Encoding procedure, then the error propagation is very high. The error propagation in Arithmetic Coding is studied. Exploiting the high error propagation property when compressing data by Arithmetic encoding procedure, two different algorithms have been proposed for error detection and correction. Under certain conditions these algorithms detect and with a very high probability correct the errors introduced to the compressed data.

A Graphic Editor And Real Time Simulator Of Petri Net, Tenian Tang

Theses

A structurally designed graphic editor and real time simulator of Petri nets (PN) is presented. The package is programmed by Turbo C language, which runs in IBM-PC environmental with graphics adaptor. Various kinds of PN systems such as ordinary, general and timed Petri net can be modeled and analyzed by firing the models with real time token movement animations. Some properties of analyzed PN such as reachability, deadlock, firing time can be studied. Several illustrative examples are presented. The possible further enhancements are also discussed.

Extension And Applications Of Knitting Technique For Petri Net Synthesis, Yanzhong Zhang

Theses

Petri nets have been used for modeling and analyzing various systems [1,2,3,4,8]. One approach to Petri net synthesis is a knitting technique [4,5, 6,7]. It was developed for modeling concurrent systems. The Petri net model is incrementally expanded by adding paths of nodes according to rules. To extend the knitting technique to cover synchronized systems, a set of new rules based on synchronic distance concept is presented. The rules penult synchronizing M exclusive processes (M 2) to a synchronic distance of any positive integer N. They can be applied to both exclusive processes and independent processes. The resulting Petri net …

Conscious Conscience, Michael B. Easley

Theses

None provided.

The Effects Of Deinking On The Coating Compounds Used On Carbonless Business Forms, Brooke Merrill Tinney

Theses

The purpose of this study was to determine what effects different deinking processes have on the coating compounds used on carbonless forms. Three deinking processes were studied: repulping without deinking chemicals or bleach, deinking using deinking chemicals only, and deinking using both deinking chemicals and bleach. None of the processes were successful at completely removing the oil, which is located in the microcapsules, or the resin, which is used to coat the coated-front portion (CF) of the carbonless form. Of the three deinking processes studied, simple repulping was most effective at eliminating the resin used in the coatings, while the …

No Revelations, Mark C. Tierney

Theses

None provided.

Canmol : Expert System In Medicine, Kulin Hemani

Theses

The intriguing words for the nineteen nineties are "Expert Systems", and "Artificial Intelligence". To a layman these terms conjure up thoughts of spaceships and futuristic beings. In reality they exemplify man's capability to harness technology.

Expert systems are computer software programs that make use of previously accumulated knowledge to assist in solving complex problems.

In recent years the practice of medicine has changed dramatically from a fundamentally individually deductive approach to an Artificial Intelligence based science. The modern physician no longer draws conclusions simply by examining the patient. Today the physician employs sophisticated computer based diagnostic tools to generate a …

Calcium Channel Dynamics In Hippocampal Neurons : Simulation And Physiological Studies, Prasad D. Jasthi

Theses

Mathematical modelling and computer simulations of neurons was presented by various researchers in the past. Computer simulations provide a time efficient and cost effective method to obtain required information about the physiological system. The objective of this project is to study the kinetics of calcium channels in hippocampal neurons. In an attempt to study the calcium channel activity we have developed a mathematical model for the CA3 region of the hippocampus and have analysed the calcium current noise obtained from the physiological recordings. The Simulation results had reproduced the action potential and activities of sodium and potassium channels, but did …