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Full-Text Articles in Engineering

Accessing Timesheets Via Internet Through Asp And Odbc, Varshi Challa Jan 2000

Accessing Timesheets Via Internet Through Asp And Odbc, Varshi Challa

Theses Digitization Project

The purpose of this project is to develop a computerized timesheet application. Using this application, an employee of a company can log onto the company's Web site and fill out a timesheet from anywhere in the world. The project involved automating timesheet data entry and approval procedures using contemporary technologies like Active Server Pages (ASP), JavaScript, VB Script, Component Object Model (COM), Components and Open Database connectivity (ODBC).

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Billing And Receivables Database Application, Sushma Lukalapu Jan 2000

Billing And Receivables Database Application, Sushma Lukalapu

Theses Digitization Project

The purpose of this project is to design, build, and implement an information retrieval database system for the Accounting Department at CSUSB. The database will focus on the financial details of the student accounts maintained by the accounting personnel. It offers detailed information pertinent to tuition, parking, housing, boarding, etc.

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Analysis Of Wireless Networking On The University Of Arkansas Campus, Julia Lincoln Jan 2000

Analysis Of Wireless Networking On The University Of Arkansas Campus, Julia Lincoln

Inquiry: The University of Arkansas Undergraduate Research Journal

Wireless communication has already begun to change the way business and research is done today. Development of the wireless network for digital cellular phone has already improved the area of voice communications. The area of portable and mobile connectivity for computers and other devices is beginning to emerge. The research analyzes and compares a few of these wireless networks. Physical aspects such as range, interference factors, and frequency capabilities and restrictions are assessed. Capacity analysis including round trip times, latency, and throughput are done as well. Issues of authentication and addressing protocols are researched to determine optimal performance and convenience …

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Aircraft Integrity And Reliability, Carlos M. Ferregut, Roberto A. Osegueda, Yohanz Mendoza, Vladik Kreinovich, Timothy J. Ross Jan 2000

Aircraft Integrity And Reliability, Carlos M. Ferregut, Roberto A. Osegueda, Yohanz Mendoza, Vladik Kreinovich, Timothy J. Ross

Departmental Technical Reports (CS)

In his recent paper "Probability theory needs an infusion of fuzzy logic to enhance its ability to deal with real-world problems", L. A. Zadeh explains that probability theory needs an infusion of fuzzy logic to enhance its ability to deal with real-world problems. In this paper, we give an example of a real-world problem for which such an infusion is indeed successful: the problems of aircraft integrity and reliability.

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Computational Complexity Of Planning, Diagnosis, And Diagnostic Planning In The Presence Of Static Causal Laws, Chitta Baral, Le Chi Tuan, Vladik Kreinovich Jan 2000

Computational Complexity Of Planning, Diagnosis, And Diagnostic Planning In The Presence Of Static Causal Laws, Chitta Baral, Le Chi Tuan, Vladik Kreinovich

Departmental Technical Reports (CS)

Planning is a very important AI problem, and it is also a very time-consuming AI problem. To get an idea of how complex different planning problems are, it is useful to describe the computational complexity of different general planning problems. This complexity has been described for problems in which the result res(a,s) of applying an action a to a system in a state s is uniquely determined by the action a and by the state s. In real-life planning, some consequences of certain actions are non-deterministic. In this paper, we expand the known results about computational complexity of planning (with …

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Invariance-Based Justification Of The Maximum Entropy Method And Of Generalized Maximum Entropy Methods In Data Processing, Hung T. Nguyen, Olga Kosheleva, Vladik Kreinovich Jan 2000

Invariance-Based Justification Of The Maximum Entropy Method And Of Generalized Maximum Entropy Methods In Data Processing, Hung T. Nguyen, Olga Kosheleva, Vladik Kreinovich

Departmental Technical Reports (CS)

Maximum entropy method and its generalizations are very useful in data processing. In this paper, we show that these methods naturally follow from reasonable invariance requirements.

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Shadows Of Fuzzy Sets - A Natural Approach Towards Describing 2-D And Multi-D Fuzzy Uncertainty In Linguistic Terms, Hung T. Nguyen, Berlin Wu, Vladik Kreinovich Jan 2000

Shadows Of Fuzzy Sets - A Natural Approach Towards Describing 2-D And Multi-D Fuzzy Uncertainty In Linguistic Terms, Hung T. Nguyen, Berlin Wu, Vladik Kreinovich

Departmental Technical Reports (CS)

Fuzzy information processing systems start with expert knowledge which is usually formulated in terms of words from natural language. This knowledge is then usually reformulated in computer-friendly terms of membership functions, and the system transform these input membership functions into the membership functions which describe the result of fuzzy data processing. It is then desirable to translate this fuzzy information back from the computer-friendly membership functions language to the human-friendly natural language. In general, this is difficult even in a 1-D case, when we are interested in a single quantity y; however, the fuzzy research community has accumulated some expertise …

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The Application Of Object-Oriented Techniques To Preliminary Design Problems, Patrick S. Mackessy Jan 2000

The Application Of Object-Oriented Techniques To Preliminary Design Problems, Patrick S. Mackessy

Theses: Doctorates and Masters

Preliminary structural design is an early stage in building design during which the engineer formulates and assesses a number of different structural schemes. It is conceptual in nature and involves decision making, which relies on heuristics. Whilst preliminary structural design has not been well supported by PC software, recent research has indicated the potential for knowledge-based, object-oriented systems to assist in the area. This thesis explores the issues that arise when object-oriented techniques arc used to develop knowledge-based software. lt reviews certain basic principles of structural design, methods of representing structural design knowledge and earlier approaches to the design of …

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Pendarab Titik Apungan 32bit Bertalian Paip, Noorzaily Mohamed Noor Jan 2000

Pendarab Titik Apungan 32bit Bertalian Paip, Noorzaily Mohamed Noor

Student Works (2000-2009)

Tesis ini menghuraikan sebuah pendarab titik apungan 32bit bertalian paip 18MHz yang direkabentuk menggunakan bahasa perihalan perkakasan YHDL, peralatan sintesis Synopsys FPGA Express dan ·peralatan pemetaan Xilinx Alliance, PTA ini menggunakan 1007 CLB dan 100 10B di mana peranti pemetaan yang digunakan ialah xc4036xl-bg432-2 daripada pustaka XC4000 Xilinx FPGA. Pendarab ini mengandungi tiga tahap talian paip yang belainan fungsi. Tahap pertama melaksanakan penjanaan dedarab dan penambahan dedarab secara carry save dan penambahan eksponen. la menggunakan algoritma Booth tertib kedua dan pepohon Wallace dengan pemampat 4-2. Tahap kcdua pula melakukan penambahan bawaan rambatan akhir, penormalan mantisa dan pembetulan eksponen manakala tahap …

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Application Of Wavelets And Principal Component Analysis In Image Query And Mammography, Sol Neeman Ph.D. Jan 2000

Application Of Wavelets And Principal Component Analysis In Image Query And Mammography, Sol Neeman Ph.D.

Engineering Studies Faculty Publications and Creative Works

Breast cancer is currently one of the major causes of death for women in the U.S. Mammography is currently the most effective method for detection of breast cancer and early detection has proven to be an efficient tool to reduce the number of deaths. Mammography is the most demanding of all clinical imaging applications as it requires high contrast, high signal to noise ratio and resolution with minimal x-radiation. According to studies [36], 10% to 30% of women having breast cancer and undergoing mammography, have negative mammograms, i.e. are misdiagnosed. Furthermore, only 20%-40% of the women who undergo biopsy, have …

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Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 16, Number 1, January 2000, College Of Engineering And Computer Science, Wright State University Jan 2000

Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 16, Number 1, January 2000, College Of Engineering And Computer Science, Wright State University

BITs and PCs Newsletter

An eight page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.

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Notes On Coalgebras, Cofibrations And Concurrency, Alexander Kurz, Dirk Pattinson Jan 2000

Notes On Coalgebras, Cofibrations And Concurrency, Alexander Kurz, Dirk Pattinson

Engineering Faculty Articles and Research

We consider categories of coalgebras as (co)-fibred over a base category of parameters and analyse categorical constructions in the total category of deterministic and non-deterministic coalgebras.

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Nonlinear Self-Organization In Photorefractive Materials, Partha P. Banerjee, Nickolai Kukhtarev, John O. Dimmock Jan 2000

Nonlinear Self-Organization In Photorefractive Materials, Partha P. Banerjee, Nickolai Kukhtarev, John O. Dimmock

Electrical and Computer Engineering Faculty Publications

This chapter discusses self-organization and its effects in optics. One of the most exciting and potentially useful areas of current research in optics involves the understanding and exploitation of self-organization in nonlinear optical systems. This self-organization may sometimes lead to the evolution of complex spatial patterns that can be regarded as the nonlinear eigenmodes of the system. Generation of these patterns is characteristically marked by the presence of intensity thresholds. In a nonlinear system with complicated temporal dynamics, it turns out that one cannot retain purity in spatial dimensionality. It is therefore equally important to investigate the dynamics of the …

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The Software Quality Star (Sq-Star), Ronan Fitzpatrick Jan 2000

The Software Quality Star (Sq-Star), Ronan Fitzpatrick

Other resources

Usability is a significant factor in the creation of quality software products which is an important focus of the software engineering syllabus. Usability is also a significant factor in the study of Human-Computer Interaction (HCI). Despite the connection, software quality and the rigours of the software engineering discipline are not used in the teaching of HCI and visa versa. Consequently, students undertaking software engineering courses are not fully exposed to usability issues and HCI students often miss out on the disciplines of software engineering. This paper presents a quality focused conceptual model - the Software Quality Star - which can …

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Lime: A Middleware For Physical And Logical Mobility, Gian Pietro Picco, Amy L. Murphy, Gruia-Catalin Roman Jan 2000

Lime: A Middleware For Physical And Logical Mobility, Gian Pietro Picco, Amy L. Murphy, Gruia-Catalin Roman

All Computer Science and Engineering Research

LIME is a middleware supporting the development of applications that exhibit physical mobility of hosts, logical mobility of agents, or both. LIME adopts a coordination perspective inspired by work on the Linda model. The context for computation, represented in Linda by a globally accessible, persistent tuple space, is represented in LIME by transient sharing of the tuple spaces carried by each individual mobile unit. Linda tuple spaces are also extended with a notion of location and with the ability to react to a given state. The hypothesis underlying our work is that the resulting model provides a minimalist set of …

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A Rate-Based End-To-End Multicast Congestion Control Protocol, Sherlia Shi, Marcel Waldvogel Jan 2000

A Rate-Based End-To-End Multicast Congestion Control Protocol, Sherlia Shi, Marcel Waldvogel

All Computer Science and Engineering Research

Current reliable multicast protocols do not have scalable congestion control mechanisms and this deficiency leads to concerns that multicast deployment may endanger stability of the network. In this paper, we present a sender-based approach for multicast congestion control targeted towards reliable bulk data transfer. We assume that there are a few bottleneck links in a large scale multicast group at any time period and these bottlenecks persist long enough to be identified and adapted to. Our work focus on dynamically identifying the worst congested path in the multicast tree and obtaining TCP-friendly throughput on this selected path. We device novel …

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On Maintaining Group Membership Data In Ad Hoc Networks, Gruia-Catalin Roman, Qingfeng Huang, Ali Hazemi Jan 2000

On Maintaining Group Membership Data In Ad Hoc Networks, Gruia-Catalin Roman, Qingfeng Huang, Ali Hazemi

All Computer Science and Engineering Research

The design of ad hoc mobile applications often requires the availability of a consistent view of the application state among the participating hosts. Essential to constructing a consistent view is the ability to know what hosts are within proximity of each other, i.e., form a group in support of the particular application. In this paper we propose an algorithm that allows hosts within communication range to maintain a consistent view of the group membership despite movement and frequent disconnections. The novel features of this algorithm are its reliance on location information and a conservative notion of logical connectivity that creates …

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Data Archiving With The Srb*, Jinghua Zhou Jan 2000

Data Archiving With The Srb*, Jinghua Zhou

All Computer Science and Engineering Research

We use the SRB (Storage Request Broker) middleware to design and implement a storage archival system which will be used to archive Neuroscience data. As part of the design process, we developed and used an experimenter's workbench to measure SRB performance. These experiments improved our understanding of both the functionality and the performance of the SRB. This technical report describes the scripts in the experimenter's workbench, the archiving scripts, and performance measurements.

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The Design And Performance Of Meta-Programming Mechanisms For Object Request Broker Middleware, Nanbor Wang, Kirthika Parameswaran, Douglass Schmidt Jan 2000

The Design And Performance Of Meta-Programming Mechanisms For Object Request Broker Middleware, Nanbor Wang, Kirthika Parameswaran, Douglass Schmidt

All Computer Science and Engineering Research

Distributed object computing (DOC) middleware shields developers from many tedious and error-prone aspects of programming distribued applications. Without proper support from the middleware, however, it can be hard to evolve distributed applications after they are deployed. Therefore, DOC middleware should support meta-programming mechanisms, such as smart proxies and interceptors, that improve the adaptability of distributed applications by allowing their behavior to be modified without drastically changing existing software. This paper presents three contributions to the study of metaprogramming mechanisms for DOC middleware. First, it illustrates, compares, and contrasts several meta-programming mechanisms from an application developer's perspective. Second, it outlines the …

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Synthesizer, A Pattern Language For Designing Digital Modular Synthesis Software, Thomas V. Judkins, Christopher D. Gill Jan 2000

Synthesizer, A Pattern Language For Designing Digital Modular Synthesis Software, Thomas V. Judkins, Christopher D. Gill

All Computer Science and Engineering Research

Synthesizer is a pattern language for designing digital synthesizers using modular synthesis in software to generate sound. Software developed according to this pattern language emulates the abilities of an analog synthesizer. Modular synthesis is one of the oldest sound synthesis techniques. It was used in the earliest analog synthesizers, like the Moog [1] and ARP [2]. These machines introduced the oscillator-filter-amplifier paradigm, where sound generated by an oscillator is passed through a series of filters and amplifers before being sent to a speaker. These first machines had physical modules through which electrical signals were passed. These modules can be emulated …

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Programming Active Networks Using Active Pipes, Ralph Keller, Jeyashankher Ramamirtham, Tilman Wolf, Bernhard Plattner Jan 2000

Programming Active Networks Using Active Pipes, Ralph Keller, Jeyashankher Ramamirtham, Tilman Wolf, Bernhard Plattner

All Computer Science and Engineering Research

Active networks allow customized processing of data traffic within the network which can be used by applications to improve the quality of their sessions. To simplify development of active applications in a heterogeneous environment, we propose active network pipes as a programming abstraction to specify transmission and processing requirements. We describe a routing algorithm that maps application session requirements onto network resources and determines an optimal route through the network transiting all required processing sites. Additionally, we propose a network software architecture to implement the functionality required to support active pipes.

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Master Of Science Degree Programs On Campus Or Online, Nova Southeastern University Jan 2000

Master Of Science Degree Programs On Campus Or Online, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

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School Of Computer And Information Sciences--Doctoral Degree Programs 2000-2001, Nova Southeastern University Jan 2000

School Of Computer And Information Sciences--Doctoral Degree Programs 2000-2001, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

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Graduate Catalog The School Of Computer And Information Sciences 2000-2001, Nova Southeastern University Jan 2000

Graduate Catalog The School Of Computer And Information Sciences 2000-2001, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

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School Of Computer And Information Sciences Master Of Science Degree Program 2000-2001 Catalog, Nova Southeastern University Jan 2000

School Of Computer And Information Sciences Master Of Science Degree Program 2000-2001 Catalog, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

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Design Tradeoffs For Embedded Network Processors, Tilman Wolf, Mark Franklin, Edward W. Spitznagel Jan 2000

Design Tradeoffs For Embedded Network Processors, Tilman Wolf, Mark Franklin, Edward W. Spitznagel

All Computer Science and Engineering Research

Demands for flexible processing has moved general-purpose processing into the data path of networks. With the development of System-On-a-Chip technology, it is possible to put several processors with memory and I/O components on a single ASIC. We present a model of such a system with a simple performance metric and show how the number of processors and cache sizes can be optimized for a given workload. Based on a telecommunications benchmark we show the results of such an optimization and discuss how specialied hardware and appropriate scheduling can further improve system performance.

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Profile-Based Routing: A New Framework For Mpls Traffic Engineering, Subhash Suri, Marcel Waldvogel, Priyank Ramesh Warkhede Jan 2000

Profile-Based Routing: A New Framework For Mpls Traffic Engineering, Subhash Suri, Marcel Waldvogel, Priyank Ramesh Warkhede

All Computer Science and Engineering Research

We present a new algorithm and framework for dynamic routing of bandwidth guaranteed flows. The problem is motivated by the need to dynamically set up bandwidth guaranteed paths in carrier and ISP networks. Traditional routing algorithms such as minimum hop routing or widest path routing do not take advantage of any knowledge about the traffic distribution or ingress-egress pairs, and therefore can often lead to severe network underutilization. Our work is inspired by the recently proposed "minimum interference routing" algorithm (MIRA) of Kodialam and Lakshman, but it improves on their approach in several ways. Our main idea is to use …

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Almi: An Application Level Multicast Infrastructure, Dimitrios Pendarakis, Sherlia Shi, Dinesh Verma, Marcel Waldvogel Jan 2000

Almi: An Application Level Multicast Infrastructure, Dimitrios Pendarakis, Sherlia Shi, Dinesh Verma, Marcel Waldvogel

All Computer Science and Engineering Research

The IP multicast model allows scalable and efficient multi-party communication, particularly for groups of large size. However, deployment of IP multicast requires substantial infrastructure modifications and is hampered by a host of unresolved open problems such as reliability, flow and congestion control, security and access control. Motivated by these problems, we have designed and implemented ALMI, an application level group communication middleware, which does not rely on network infrastructure support and thus, allows accelerated deployment and simplified configuration at the cost of a relatively small increase in traffic load. ALMI is tailored toward support of multicast groups of relatively small …

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Parallel Fpga Programming Over Backplane Chassis, John Lockwood, Tom Mclaughlin, Tom Chaney, Yuhua Chen, Fred Rosenberger, Alex Chandra, Jon Turner Jan 2000

Parallel Fpga Programming Over Backplane Chassis, John Lockwood, Tom Mclaughlin, Tom Chaney, Yuhua Chen, Fred Rosenberger, Alex Chandra, Jon Turner

All Computer Science and Engineering Research

For systems with a large number of FPGAs, where a design is instantiated across multiple FPGAs in a chassis, an efficient mechanism of programming the FPGA devices is needed. The mechanism described herein allows multiple FPGAs to be programmed across a backplane. Only a single configuration PROM is required to store the configuration for the multiple instances of the design. When the system boots, all FPGAs are programmed in parallel. This design is applicable to any system which contains a multiple board system which has instances of identical FPGA implementations distributed across the boards. Signal integrity of signals is considered.

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Codeweave: Exploring Fine-Grained Mobility Of Code, Cecilia Mascolo, Gian Pietro Picco, Gruia-Catalin Roman Jan 2000

Codeweave: Exploring Fine-Grained Mobility Of Code, Cecilia Mascolo, Gian Pietro Picco, Gruia-Catalin Roman

All Computer Science and Engineering Research

This paper explores the range of constructs and issues facing the designer of mobile code systems which allow for the unit of mobility to be finer-grained than that of execution. Mobile UNITY, a notation and proof logic for mobile computing, provides for this research a clean abstract setting, i.e., unconstrained by compilation and performance considerations traditionally associated with programming language design. Within the context of Mobile UNITY, we take the extreme view that every line of code and every variable declaration is potentially mobile, i.e., it may be duplicated and/or moved from one program contxt to another on the same …

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