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Articles 1 - 5 of 5
Full-Text Articles in Physical Sciences and Mathematics
Ontology-Based Methodology For Error Detection In Software Design, Allyson M. Hoss
Ontology-Based Methodology For Error Detection In Software Design, Allyson M. Hoss
LSU Doctoral Dissertations
Improving the quality of a software design with the goal of producing a high quality software product continues to grow in importance due to the costs that result from poorly designed software. It is commonly accepted that multiple design views are required in order to clearly specify the required functionality of software. There is universal agreement as to the importance of identifying inconsistencies early in the software design process, but the challenge is how to reconcile the representations of the diverse views to ensure consistency. To address the problem of inconsistencies that occur across multiple design views, this research introduces …
A Computational Framework For The Structural Change Analysis Of 3d Volumes Of Microscopic Specimens, Madhusudhanan Balasubramanian
A Computational Framework For The Structural Change Analysis Of 3d Volumes Of Microscopic Specimens, Madhusudhanan Balasubramanian
LSU Doctoral Dissertations
Glaucoma, commonly observed with an elevation in the intraocular pressure level (IOP), is one of the leading causes of blindness. The lamina cribrosa is a mesh-like structure that provides axonal support for the optic nerves leaving the eye. The changes in the laminar structure under IOP elevations may result in the deaths of retinal ganglion cells, leading to vision degradation and loss. We have developed a comprehensive computational framework that can assist the study of structural changes in microscopic structures such as lamina cribrosa. The optical sectioning property of a confocal microscope facilitates imaging thick microscopic specimen at various depths …
Effective Bootstrapping Of Peer-To Peer Networks Over Mobile Ad-Hoc Networks, Wei Ding
Effective Bootstrapping Of Peer-To Peer Networks Over Mobile Ad-Hoc Networks, Wei Ding
LSU Doctoral Dissertations
Mobile Ad-hoc Networks (MANETs) and Peer-to-Peer (P2P) networks are vigorous, revolutionary communication technologies in the 21st century. They lead the trend of decentralization. Decentralization will ultimately win clients over client/server model, because it gives ordinary network users more control, and stimulates their active participation. It is a determinant factor in shaping the future of networking. MANETs and P2P networks are very similar in nature. Both are dynamic, distributed. Both use multi-hop broadcast or multicast as major pattern of traffic. Both set up connection by self-organizing and maintain connection by self-healing. Embodying the slogan "networking without networks," both abandoned traditional client/server …
Adaptive Scalable Protocols For Heterogeneous Wireless Networks, Vamsi Krishna Paruchuri
Adaptive Scalable Protocols For Heterogeneous Wireless Networks, Vamsi Krishna Paruchuri
LSU Doctoral Dissertations
The focus of this dissertation is to propose analytical models to study the impact of collisions and interference in heterogeneous wireless networks and propose simple scalable and lightweight protocols that use these models to adapt to network conditions thus increasing efficiency, decreasing energy consumption and prolonging network lifetime. The contributions of this dissertation are multifold and are summarized as follows: - Analytical models to study the impact of collisions and interference on both broadcast and unicast messages. These analytical models are incorporated into the proposed protocols to adapt to the prevailing network conditions to improve their performance. - Optimized Flooding …
Numerical Techniques For Fresnel Diffraction In Computational Holography, Richard Patrick Muffoletto
Numerical Techniques For Fresnel Diffraction In Computational Holography, Richard Patrick Muffoletto
LSU Doctoral Dissertations
Optical holography can produce very realistic virtual images due to its capability to properly convey the depth cues that we use to interpret three-dimensional objects. Computational holography is the use of digital representations plus computational methods to carry out the holographic operations of construction and reconstruction. The large computational requirements of holographic simulations prohibit present-day existence of real-time holographic displays comparable in size to traditional two-dimensional displays. Fourier-based approaches to calculate the Fresnel diffraction of light provide one of the most efficient algorithms for holographic computations because this permits the use of the fast Fourier transform (FFT). The limitations on …