194 research outputs found

    Image Reconstruction and Resolution via Electrical Impedance Tomography

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    Electrical Impedance Tomography (EIT) is the cheapest imaging method known but with a questionable ability to produce reliable image. Improving the resolution and the quality of the reconstructed image will be the ultimate aim of this project. Image of better quality is achievable with the incremental number of electrodes used. A better image quality is possible with the utilization of a finer-meshed Finite Element Model (FEM) in solving forward problem of the algorithm involves. Further improvement on the images is attainable with the application of image post-processing of Matlab, in which an image of better contrast and noise-free is reconstructed. We are now one step closer in establishing EIT as a reliable imaging technique in the future

    An Early Bronze Age Cemetery at Windmill Fields, Ingleby Barwick, Teesside, North Yorkshire

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    Report on rescue excavation in 1996 by Tees Archaeology at housing development site where human remains were revealed. Evidence recovered indicated it was an EBA cemetery with remains of up to 20 individuals, both burials and cremations. A high-status burial of a woman had various objects of jet, while a male had a stone macehead. Evidence for mummification of some bodies

    Contributions to Divide-and-Conquer MCMC

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    Vitronectin as a micromanager of cell response in material-driven fibronectin nanonetworks

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    Surface functionalization strategies of synthetic materials for regenerative medicine applications comprise the development of microenvironments that recapitulate the physical and biochemical cues of physiological extracellular matrices. In this context, material-driven fibronectin (FN) nanonetworks obtained from the adsorption of the protein on poly(ethyl acrylate) provide a robust system to control cell behavior, particularly to enhance differentiation. This study aims at augmenting the complexity of these fibrillar matrices by introducing vitronectin, a lower-molecular-weight multifunctional glycoprotein and main adhesive component of serum. A cooperative effect during co-adsorption of the proteins is observed, as the addition of vitronectin leads to increased fibronectin adsorption, improved fibril formation, and enhanced vitronectin exposure. The mobility of the protein at the material interface increases, and this, in turn, facilitates the reorganization of the adsorbed FN by cells. Furthermore, the interplay between interface mobility and engagement of vitronectin receptors controls the level of cell fusion and the degree of cell differentiation. Ultimately, this work reveals that substrate-induced protein interfaces resulting from the cooperative adsorption of fibronectin and vitronectin fine-tune cell behavior, as vitronectin micromanages the local properties of the microenvironment and consequently short-term cell response to the protein interface and higher order cellular functions such as differentiation

    Image Reconstruction and Resolution via Electrical Impedance Tomography

    Get PDF
    Electrical Impedance Tomography (EIT) is the cheapest imaging method known but with a questionable ability to produce reliable image. Improving the resolution and the quality of the reconstructed image will be the ultimate aim of this project. Image of better quality is achievable with the incremental number of electrodes used. A better image quality is possible with the utilization of a finer-meshed Finite Element Model (FEM) in solving forward problem of the algorithm involves. Further improvement on the images is attainable with the application of image post-processing of Matlab, in which an image of better contrast and noise-free is reconstructed. We are now one step closer in establishing EIT as a reliable imaging technique in the future

    Image Reconstruction and Resolution via Electrical Impedance Tomography

    Get PDF
    Electrical Impedance Tomography (EIT) is the cheapest imaging method known but with a questionable ability to produce reliable image. Improving the resolution and the quality of the reconstructed image will be the ultimate aim of this project. Image of better quality is achievable with the incremental number of electrodes used. A better image quality is possible with the utilization of a finer-meshed Finite Element Model (FEM) in solving forward problem of the algorithm involves. Further improvement on the images is attainable with the application of image post-processing of Matlab, in which an image of better contrast and noise-free is reconstructed. We are now one step closer in establishing EIT as a reliable imaging technique in the future

    SwISS:A Scalable Markov chain Monte Carlo Divide-and-Conquer Strategy

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    Divide-and-conquer strategies for Monte Carlo algorithms are an increasingly popular approach to making Bayesian inference scalable to large data sets. In its simplest form, the data are partitioned across multiple computing cores and a separate Markov chain Monte Carlo algorithm on each core targets the associated partial posterior distribution, which we refer to as a sub-posterior, that is the posterior given only the data from the segment of the partition associated with that core. Divide-and-conquer techniques reduce computational, memory and disk bottle-necks, but make it difficult to recombine the sub-posterior samples. We propose SwISS: Sub-posteriors with Inflation, Scaling and Shifting; a new approach for recombining the sub-posterior samples which is simple to apply, scales to high-dimensional parameter spaces and accurately approximates the original posterior distribution through affine transformations of the sub-posterior samples. We prove that our transformation is asymptotically optimal across a natural set of affine transformations and illustrate the efficacy of SwISS against competing algorithms on synthetic and real-world data sets

    SwISS:A Scalable Markov chain Monte Carlo Divide-and-Conquer Strategy

    Get PDF
    Divide-and-conquer strategies for Monte Carlo algorithms are an increasingly popular approach to making Bayesian inference scalable to large data sets. In its simplest form, the data are partitioned across multiple computing cores and a separate Markov chain Monte Carlo algorithm on each core targets the associated partial posterior distribution, which we refer to as a sub-posterior, that is the posterior given only the data from the segment of the partition associated with that core. Divide-and-conquer techniques reduce computational, memory and disk bottle-necks, but make it difficult to recombine the sub-posterior samples. We propose SwISS: Sub-posteriors with Inflation, Scaling and Shifting; a new approach for recombining the sub-posterior samples which is simple to apply, scales to high-dimensional parameter spaces and accurately approximates the original posterior distribution through affine transformations of the sub-posterior samples. We prove that our transformation is asymptotically optimal across a natural set of affine transformations and illustrate the efficacy of SwISS against competing algorithms on synthetic and real-world data sets

    Deco Lighting Store/ Abang Mohd Harrisham… [et.al.]

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    Deco Lighting Store is a proposed name for our business as we are selling general lighting equipments and household lighting decorations. We had chosen partnership as form of our business entities. We have Abg. Mohd Harrisham, myself as a General Manager, Mohd Alfian as Administration Manager, Cynthia Sumam as a Marketing Manager, Vyner as our Operation Manger and lastly Norhatini as our Financial Manager. We all had work hard to set up this business plan as best as we could and we believe this business plan might be useful to us to run such a business. After preparing this whole set of business plan, we believe that we will be able to succeed in this business according to the plan that we do. It is based on the profitability ratios which are shown that our business is capable to make profit exactly
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