Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"IVDS"”.
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IVDS System: Channel Simulation and Repeater Unit Design
… this thesis, an Interactive Video Data Service (IVDS) is developed. This service provides a mechanism for television viewers to interact with the program they are watching. Possible interactions include purchasing products from home shopping programs and requesting information from advertisers. …
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Collision study for the one-way IVDS channel
… link for the Interactive Video Data Service ( IVDS ) project currently being developed by the Center for Wireless Telecommunications ( CWT ) at Virginia Tech. A novel retransmission technique has previously been developed which discusses the probability of packet collisions on the channel and …
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The Design of an IVDS World Wide Web Browser Architecture
An IVDS (Interactive Video Data Service) uses an interactive television system to transmit data to and from subscribers' homes. IVDS allows the viewer to interact with content provided on the television using a remote control. A typical IVDS application would be ordering an advertised product or …
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IVDS Consumer Control Unit Evolution and Bar Code Interface Design
… by most interactive systems available today. The IVDS system consists of a Consumer Control Unit which transmits user requests, a Repeater Unit which receives transmissions from the CCUs, and a Host System which takes appropriate actions for user demands. This thesis follows the evolution of the …
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Verification and implementation of a multiple retransmission technique for a one-way asynchronous communication channel
… channel of the Interactive Video Data Service (IVDS) system. The commercial application of the IVDS project made reliability of the retransmission technique important. Verification of the reliability of the technique was done using a simulator written in the C programming language. The results …
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Networking Requirements and Solutions for a TV WWW Browser
… Internet, while providing high bandwidth, is the IVDS/WWW Browser. Controlled by a central WWW Browser Server, the WWW pages are displayed on a standard television set using an IVDS (Interactive Video and Data Service) Decoder Box, an inexpensive hardware device. The user can access the WWW using …
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Cytokines and chemokines in the pathogenesis of low back pain
… back pain. Alterations in the behaviour of the IVDs’ native cell population mediate the processes that lead to structural failure, as seen in IVD degeneration. Cytokines are implicated in this process, several studies have identified that Interleukin-1 (IL-1) and Tumour Necrosis Factor-α (TNF-α) …
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Audio coding and identification for an interactive television application
… for an Interactive Video Data Service (IVDS) system. The overall purpose of the IVDS system that is discussed in this thesis is to provide the user with a wireless return path to the host site. The information being broadcast from the host site can vary. However, it is assumed here that …
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Molecular and Biofunctional Modification of Conformal POEGMA Bottlebrush Coatings and Applications Toward In Vitro Diagnostics
<p>In vitro diagnostic assays (IVDs) play a crucial role in modern biomedical research and clinical decision-making. The overall performance and cost of IVDs depends considerably on the quality of the assay surface being used and the steps/reagents required to complete the assay. Synthetic …
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Decoder Board Hardware/Software Development in Wireless Interactive Video Data Service System
The Interactive Video Data Service (IVDS) system allows consumers to browse the Internet, request information on products or services, make purchases, indicate preferences, and perform other interactive applications. To provide this service, the IVDS system has three subsystems: Consumer Control …
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Tissue-Engineered Annulus Fibrosus Repair and Nucleus Pulposus Augmentation in Pre-Clinical Models of Intervertebral Disc Degeneration
Intervertebral discs (IVDs) are the cartilaginous structures in the spine that connect adjacent vertebrae, absorb shock from daily activities, and allow for articulation of the spine. Unfortunately, IVDs are prone to degeneration and have little to no capacity for self-repair. IVD degeneration is …
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The effect of position on the lumbar intervertebral disc.
… This pattern was more common in the upper lumbar IVDs (L1/2 and L2/3) between positions and less common in the lower IVDs (L4/5 and L5/S1) between positions. New knowledge regarding the behaviour of the lumbar IVD emerged from this research. The differences detected between the asymptomatic and …
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Mechanisms for regenerative intervertebral disc healing during early growth in mice
… Fibrosus (AF) defects of intervertebral discs (IVDs) cause painful disability, for example when herniated tissue compresses against adjacent nerves. Discectomy, the current standard of treatment to address herniation, does not repair AF defects and can result in re-herniation and recurrent pain. …
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Development of translational models for intervertebral disc degeneration using a comparative approach for canine and human patients
Intervertebral discs (IVDs) are unique musculoskeletal tissues within functional spinal unit organs comprising the spinal column that distribute loads and allow complex movements for vertebrates. IVD degeneration has been closely associated with manifestations of symptomatic IVD disease (IVDD). …
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Repeater Unit Software Development in Wireless Interactive Video Data Service System
… via the Interactive Video Data Service (IVDS) system developed by The Center for Wireless Telecommunications, Virginia Tech. This system consists of three components - User control, Repeater unit and a Host program. The user requests a service using his/her television remote (User …
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Encoding a Hidden Digital Signature Using Psychoacoustic Masking
The Interactive Video Data System (IVDS) project began with an initial abstract concept of achieving interactive television by transmitting hidden digital information in the audio of commercials. Over the course of three years such a communication method was successfully developed, the hardware …
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Mechanobiology of the nucleus pulposus: The effect of hydrostatic pressure and glucose deprivation on nucleus pulposus cell sub‐populations
… species, age and health. Intervertebral disc (IVDs) that contain predominantly MNP cells are susceptible to degeneration, while NC cell–rich discs remain healthy. Loss of NC cells is hypothesized to be initiated by mechanical stress and/or nutrient deprivation. This study aimed to investigate …