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1,932 Matching Results
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Ensuring Authenticity and Integrity of Critical Information Using XML Digital Signatures
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Use of this item is restricted to the UNT Community
It has been noticed in the past five years that the Internet use has been troubled by the lack of sufficient security and a legal framework to enable electronic commerce to flourish. Despite these shortcomings, governments, businesses and individuals are using the Internet more often as an inexpensive and ubiquitous means to disseminate and obtain information, goods and services. The Internet is insecure -- potentially millions of people have access, and "hackers" can intercept anything traveling over the wire. There is no way to make it a secure environment; it is, after all, a public network, hence the availability and affordability. In order for it to serve our purposes as a vehicle for legally binding transactions, efforts must be directed at securing the message itself, as opposed to the transport mechanism. Digital signatures have been evolved in the recent years as the best tool for ensuring the authenticity and integrity of critical information in the so called "paperless office". A model using XML digital signatures is developed and the level of security provided by this model in the real world scenario is outlined.
Date:
December 2002
Creator:
Korivi, Arjun
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Server load balancing.
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Use of this item is restricted to the UNT Community
Server load balancing technology has obtained much attention as much business proceeded towards e-commerce. The idea behind is to have set of clustered servers that share the load as against a single server to achieve better performance and throughput. In this problem in lieu of thesis, I propose and evaluate an implementation of a prototype scalable server. The prototype consists of a load-balanced cluster of hosts that collectively accept and service TCP connections. The host IP addresses are advertised using the Round Robin DNS technique, allowing any host to receive requests from any client. Once a client attempts to establish a TCP connection with one of the hosts, a decision is made as to whether or not the connection should be redirected to a different host namely, the host with the lowest number of established connections. This problem in lieu of thesis outlines the history of load balancing, various options available today and finally approach for implementing the prototype and the corresponding findings.
Date:
December 2002
Creator:
Kanuri, Jaichandra
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Implementation of Back Up Host in TCP/IP
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Use of this item is restricted to the UNT Community
This problem in lieu thesis is considering a TCP client H1 making a connection to distant server S and is downloading a file. In the midst of the downloading, if H1 crashes, the TCP connection from H1 to S is lost. In the future, if H1 restarts, the TCP connection from H1 to S will be reestablished and the file will be downloaded again. This cannot happen until host H1 restarts. Now consider a situation where there is a standby host H2 for the host H1. H1 and H2 monitor the health of each other by heartbeat messages (like SCTP). If H2 detects the failure of H1, then H2 takes over. This implies that all resources assigned to H1 are now reassigned or taken over by H2. The host H1 and H2 transmit data between each other when any one of it crashed. Throughout the data transmission process, heart beat chunk is exchanged between the hosts when one of the host crashes. In particular, the IP addresses that were originally assigned to H1 are assigned to H2. In this scenario, movement of the TCP connection between H1 and S to a connection between H2 and S without disrupting the TCP …
Date:
December 2002
Creator:
Golla,Mohan
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Quality of Service Aware Protocol for Power Conservation in Wireless Ad Hoc and Mobile Networks
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Use of this item is restricted to the UNT Community
Power consumption is an important issue for mobile computers since they rely on the short life of batteries. Conservation techniques are commonly used in hardware design of such systems but network interface is a significant consumer of power, which needs considerable research to be devoted towards designing a low-power design network protocol stack. Due to the dynamic nature of wireless networks, adaptations are necessary to achieve energy efficiency and a reasonable quality of service. This paper presents the application of energy-efficient techniques to each layer in the network protocol stack and a feedback is provided depending on the performance of this new design. And also a comparison of two existing MAC protocols is done showing a better suitability of E2MAC for higher power conservation. Multimedia applications can achieve an optimal performance if they are aware of the characteristics of the wireless link. Relying on the underlying operating system software and communication protocols to hide the anomalies of wireless channel needs efficient energy consumption methodology and fair quality of service like E2MAC. This report also focuses on some of the various concerns of energy efficiency in wireless communication and also looks into the definition of seven layers as defined by International …
Date:
December 2002
Creator:
Gangidi, Murali
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Development and Economic Impacts to the State of Texas from the Construction of Interstate 69
Regional population growth and increasing trade with Mexico are creating severe traffic congestion along Interstate 35 and at the Laredo bridge crossings. The construction of a new Interstate Highway 69 has been offered as one solution to this problem. This analysis examines the economic impacts of building Interstate 69 and its potential impact on job creation in the counties along its projected path. Using the IMPLAN input-output modeling system, construction of Interstate 69 will support $4.2 billion in economic activity in the counties through which it will pass. More importantly, based on an analysis of Interstate 27 in west Texas, it can be projected that Interstate 69 will spur a 2% gain in regional employment above any usual economic growth.
Date:
December 2002
Creator:
Pettibon, Gregory Jason
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Unity: When the Two Become One
Jewelry has been used as a gift exchange between lovers for many centuries. It has been conveyed in a variety of forms to symbolize the meaning of love. This body of work is associated with glory of love, of sexual experience between lovers representing the idea of unity when two parts become one unit, not only in the physical sense, but also in the psychical sense. The works were divided into three series including three pair of rings, two pair of lockets, and five pair of necklaces. The erotic expression has been addressed on every piece in an abstract way counting design motifs, material used, and interaction within the piece itself. Moreover, each piece has romantic meanings and essential aspects as a symbol of love.
Date:
December 2002
Creator:
Pimolket, Noppakamal
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Preconceived Notions of Scale Relationships
I proposed in my paper to use juxtaposition of unexpected scale in my sculpture, with the expectation that it would create an unexpected tension that is visually stimulating to the viewer. I achieved this by creating disharmony in scale between an object that is perceived as miniature and an object that is perceived as gigantic within each sculpture. I then asked three questions of these sculptures: Was I able to alter the viewer's preconceived notions of the miniature and the gigantic through the manipulation of the size relationship between two objects within each sculpture? Which of these preconceived notions of the miniature or the gigantic became dominant as the main focal point in each sculpture? Did this intentional use of disharmony in scale stimulate enough of my interest to continue investigating this idea? I wrote about three sculptures that had been made for this project. The first was Manifest Destiny, a seven and a half foot tall bronze piece depicting an oil drill with a platform in the shape of the state of Texas. On the platform a gigantic bronze figure rides a miniature bronze donkey across the platform. The second bronze sculpture I wrote about was Gulliver in Suburbia; …
Date:
December 2002
Creator:
McClung, Jeffrey Bruce
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Discovering the Parameters of a Successful Piece: While Developing a Body of Work that Represents My Passion for Clay and My Enthusiasm for Life
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Use of this item is restricted to the UNT Community
Chapter I describes the purpose of the project, which was to develop a body of work that exhibits all that I am at this point in time. The questions I presented to myself were the following: 1. A successful piece is defined by what parameters? 2. What visual qualities indicate my passion for clay and my enthusiasm for life? Chapter II lists and explains the five parameters of a successful piece, which are composition, firing, mark making, color contrast, and movement. Furthermore there is an explanation on how these parameters visually display my passion for clay and my enthusiasm for life. Chapter III is a summary concluding that by discovering my five parameters of a successful piece I now understand the elements that I am searching for in my work. My work will grow from this understanding as long as I have the same passion for clay and enthusiasm for life.
Date:
December 2002
Creator:
Lichman, Brenda C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Automatic Software Test Data Generation
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Use of this item is restricted to the UNT Community
In software testing, it is often desirable to find test inputs that exercise specific program features. Finding these inputs manually, is extremely time consuming, especially, when the software being tested is complex. Therefore, there have been numerous attempts automate this process. Random test data generation consists of generating test inputs at random, in the hope that they will exercise the desired software features. Often the desired inputs must satisfy complex constraints, and this makes a random approach seem unlikely to succeed. In contrast, combinatorial optimization techniques, such as those using genetic algorithms, are meant to solve difficult problems involving simultaneous satisfaction of many constraints.
Date:
December 2002
Creator:
Munugala, Ajay Kumar
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Nature By Design
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Use of this item is restricted to the UNT Community
Organic forms representing nature, but not particular species, are combined with elements signifying attitudes toward the natural world with an emphasis on North American culture. The viewer is encouraged to consider human effects on the environment. Aquarium Night Light and Trophy both refer to the human tendency for commercial exploitation coupled with the creation of nature images we sometimes seem to prefer over the reality of the natural world. Reliquary metaphorically connects traditional religious connotations associated with saints' relics to both a biblical injunction to use anything we needed from the natural world and our contemporary belief that exposure to nature can have beneficial effects on human mental, spiritual, and physical health.
Date:
December 2002
Creator:
Lingle, Linda A.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Exploration of Surface and Texture on the Inside and Outside of My Sculpture
After generating work for many years in an intuitive, “truth to materials” mindset my intent was to explore the interior possibilities of my sculptural forms and relate these if possible, to the exterior. Alongside this exploration of the interior I introduced surface texture and color onto both interior/exterior surfaces. In some cases the work had undergone a change, which lent new meaning and provided new relationships to exist between the interior/exterior of my sculpture. Not all of the work was satisfactory to me, though I feel there were many positive results from work that may not have been successful. I found that the integration of the interior/exterior dialogue into my existing work provided new meaning allowing new relationships within the work that had not existed previously.
Date:
December 2002
Creator:
Holt, John
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Imitating Nature
Through my art I seek to communicate the continuing cycle of change that unites all life forms. I had to find methods of presentation and surface that would enhance my sculptural statements that I had begun to address. Utilizing salt, wood and low temperature sagger firing, resulted in softer, more natural appearing surfaces. These surfaces complimented and completed the organic forms with which I was working. The problems encountered in presentation were rectified by alternately contrasting the surfaces of the presentation with the surfaces of the pieces, while utilizing forms that echoed the natural forms of the pieces. The opposite approach also worked well, using natural presentation materials to create a sense of unity, and geometric bases for contrast. These methods resulted in an increased sense of energy, unity and completion in the work presented.
Date:
December 2002
Creator:
Holden, Linda K.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Abstract Moments of Art Found in the Ordinary
This paper is an experiment using digital video to locate and identify the abstract in everyday life and nature. The abstract moment occurs when the image that is captured by video loses its connection with the original context, allowing the images to be viewed in an entirely new way. The abstract moment is initiated by a transformative instant, that instant in which perception is altered and the viewer sees the intended content of composition of light and sound. The project contains four digital videos that record the artist's progress and interests.
Date:
December 2002
Creator:
Kraft, Stuart
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Rasa: Serenity, Valor, Love
The focus of this thesis is the conveyance of moods through clothes, the communication of feelings through fashion. The thesis illustrates how clothes speak, and the tools used to communicate a visual message. Three moods are used as examples: Serenity, Valor and Love. The thesis presents the author's design ability, creative personality, cultural background and technical skills. Sources of data range from personal experience to books on Cultural Studies, armor and mask making, Indian/ Asian dance and theatre, fabric design, fabric manipulation and websites on related topics. The chapters discuss background information of the author and the topic of research, and present each ensemble created to support the thesis. Through design details and photographs of the nine ensembles, the thesis demonstrates different techniques of achieving visual communication through clothes.
Date:
December 2002
Creator:
Ganguly, Deepa
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Control Mechanisms and Recovery Techniques for Real-Time Data Transmission Over the Internet.
Streaming multimedia content with UDP has become popular over distributed systems such as an Internet. This may encounter many losses due to dropped packets or late arrivals at destination since UDP can only provide best effort delivery. Even UDP doesn't have any self-recovery mechanism from congestion collapse or bursty loss to inform sender of the data to adjust future transmission rate of data like in TCP. So there is a need to incorporate various control schemes like forward error control, interleaving, and congestion control and error concealment into real-time transmission to prevent from effect of losses. Loss can be repaired by retransmission if roundtrip delay is allowed, otherwise error concealment techniques will be used based on the type and amount of loss. This paper implements the interleaving technique with packet spacing of varying interleaver block size for protecting real-time data from loss and its effect during transformation across the Internet. The packets are interleaved and maintain some time gap between two consecutive packets before being transmitted into the Internet. Thus loss of packets can be reduced from congestion and preventing loss of consecutive packets of information when a burst of several packets are lost. Several experiments have been conducted with …
Date:
August 2002
Creator:
Battula, Venkata Krishna Rao
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Are the Needs of North Dakota's Aging Population with Developmental Disabilities Being Overlooked?
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Use of this item is restricted to the UNT Community
North Dakota is faced with the challenge of meeting the needs of its growing population of elderly persons aging with a developmental disability. The challenge of creating new service models presents itself to professionals in the fields of Aging and Developmental Disabilities. Traditionally, the aging person with a developmental disability has been sent to nursing homes or grouped into community programs with younger persons with developmental disability. North Dakota is looking toward the future of caring for this special population through integration with elderly without disabilities.
Date:
May 2002
Creator:
Clark, Amy Klein
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Surfacing the Void
Surfacing the Void is an exploration of surface design in relationship to the topic of voids. For the purpose of this paper, two types of void were addressed: shelters and hulls. The theme behind the sculptural works dealt with negative spaces as an analogy for the voids in people's lives. The goal was to find a way for the surfaces to elicit an emotional response from the viewer that correlates to the impression of either shelter or hull. Keeping this in mind, each experiment was approached with how to best represent the meaning of void being manifested. Imagery was applied during different states of the clay: wet, dry, and fired. Methods of exploration included texturing, drawing, stenciling, stamping, incising, decoupage and covering the surfaces with textiles.
Date:
May 2002
Creator:
Williamson, Melanie L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Narrative Issues
This thesis covers a series of etchings created between 1998 and 2000 in completion of the requirements for graduation. The paper covers the origins and implications of the symbology within the artwork as well as the natural settings displayed. It also speaks of the mythos of art and symbols, as well as my strategy in Art making.
Date:
August 2000
Creator:
O'Hara, Richard
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Playing Jaques in As You Like It
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Use of this item is restricted to the UNT Community
Abstract not available
Date:
May 2000
Creator:
Thomas, Chad
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
I. Korean address and reference terms between married men and women; II. Metaphorical extension in Korean compound verbs
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Use of this item is restricted to the UNT Community
I. This study attempts to investigate the address and reference terms between Korean husbands and wives in different situations by means of the questionnaire. In addition to the results by the questionnaire, questions relating to gender, age, culture and society were partially answered through out this survey. II. This study attempts to analyze metaphorical extension of Korean compound verbs. The patterns found in Korean compound verbs are similar to the work of Abby and Chelliah. That is secondary verbs in the construction of compound verbs which have two sequential verbs have bleached meanings in the processes of grammaticalization.
Date:
May 2000
Creator:
Seo, Eun-Jeong
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Teamwork in the Nursing Home: The Art of Caring for Long-Term Care Residents
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Use of this item is restricted to the UNT Community
The effects of teamwork in a long-term care setting were explored, and four key elements of teamwork in the long-term care facility were discovered. These elements--clarity of purpose, clear communication, well-defined decision-making procedures, and participative leadership--are presented in detail. The literature reviewed as well as observations from personal participation in a case study show that employing the teamwork concept in a nursing home environment significantly enhances the quality of life for the residents of such facilities.
Date:
May 2000
Creator:
Saxon, Juliane M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Long-Term Care Administrator Licensure and Certification: An Emerging Health Profession
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Use of this item is restricted to the UNT Community
The long-term care administrator profession is one that is both new and evolving. The unique historical perspective of this health profession is brief in the number of years it encompasses and crucial in understanding the current issues facing the profession. Administrator experiences provide a point of reference regarding the profession's structural problems. Ethical considerations play a dynamic role in administrators' daily jobs as well as their continued licensure. The significance of the profession's ongoing problems at the state and national level causes the need for alternatives to the current system. A combination of these alternatives must be embraced to assist in the recruitment and retention of long-term care administrators.
Date:
May 2000
Creator:
Syverson, Thomas
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Dialogue: An Exhibition of Ceramic Sculpture
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Use of this item is restricted to the UNT Community
I want the viewers of my work to participate with me in a common experience. How I choose to communicate an experience in the work is intended to effect the viewer's level of understanding and participation. Toward this end, an exploration of nontraditional self-portraiture involving the viewer in a relationship with the artist will be used to maintain the visual dialogue imparted through the work. Utilization of recognizable symbols and icons within the work is meant to increase the clarity of my communication enhancing the viewer's involvement in the common experience. Color, as a concern will relate to the increased access and interest of the work to the viewer's experience and understanding.
Date:
May 2000
Creator:
Freeland, Charles
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Resident Profile and Considerations for the Development of a Strategic Plan
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Use of this item is restricted to the UNT Community
The graying of America will have implications for all areas of society, especially the delivery of long-term care services. Many older individuals are aging in place, a phenomenon that is apparent at Dickinson Place, a church-sponsored low-income housing property for the elderly in Dallas, Texas, where the average age of residents has risen from 65 in the early 1970s to 78 in 1999. This change has prompted the board of directors to review the facility's mission, its physical plant, and the services it provides for strategic planning purposes, to ensure that Dickinson Place can continue to meet the needs of its residents both now and in the future.
Date:
May 2000
Creator:
Burgos, Dalila
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library