Moore's law is the empirical observation that component density and performance of integrated circuits - approximately doubles every eighteen months. It is not a 'law' in the sense that basic principals of...
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Moore's law is the empirical observation that component density and performance of integrated circuits - approximately doubles every eighteen months. It is not a 'law' in the sense that basic principals of physics and thermodynamics constitute the rules of nature. But there is a 'law' that serves as the basis for Moore's law; it is the general principle that governs learning curves, i.e. that efficiencies improve a fixed percentage with increases in the total accumulated volume of production, when analyzed on a logarithmic scale. Analyzing current trends in integrated circuit technology reveals the potential left to achieve performance, reliability and cost improvements via the traditional means of shrinking design rules and increasing die and wafer size. It also suggests where nontraditional innovation is likely to have its greatest impact. this talk explores these projections for future technology and suggest where the discontinuities are most likely to occur.
An introductory course in the use of multimedia techniques for technical communication was designed and presented as a distance education course. the software application PowerPoint and several readily available HTML ...
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An introductory course in the use of multimedia techniques for technical communication was designed and presented as a distance education course. the software application PowerPoint and several readily available HTML editors were used by students to create electronic presentations and Web sites that employed sound, animation, film, as well as a variety of graphics and text messages to achieve specific communication objectives. Students used a messaging application, First Class, and the Internet to get assignments, learn about multimedia, discuss their experiences and problems, communicate withtheir instructor and showcase and critique their own multimedia projects.
作者：
M.C. BakerM.R. StytzVirtual Environments
3D Medical Imaging and Computer Graphics Laboratory Department of Electrical and Computer Engineering Air Force Institute of Technology OH USA
To create a 3D rendering of an amputee's residual limb for a computer-aided Socket design software, the image data must be accurately segmented to extract the significant fit points for the limb. this paper report...
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To create a 3D rendering of an amputee's residual limb for a computer-aided Socket design software, the image data must be accurately segmented to extract the significant fit points for the limb. this paper reports on the use of a Bayesian segmentation approach created to be robust enough for speckle-laden or noisy images on relatively noise-free ultrasound images of a residual limb. the authors wanted to see if the algorithm would be able to produce a segmented image with improved detail given that the original image was free of noise. the algorithm provides a multi-resolution segmentation using the maximum a posteriori probability (MAP) densities based on modeling the a priori probability distribution with a Gibbs random field (GRF). the authors summarize the segmentation process which consists mainly of a filter-and-decimate procedure and an adaptive clustering algorithm. their results on low noise ultrasound data indicate that the Bayesian approach does not improve noticeably better segmentation of detail in the image data.
Several advancements in material production technologies have occurred over the last few decades. Additive manufacturing (AM), often known as three-dimensional (3D) printing, is a three-dimensional object manufacturin...
Several advancements in material production technologies have occurred over the last few decades. Additive manufacturing (AM), often known as three-dimensional (3D) printing, is a three-dimensional object manufacturing process that involves adding material per layer from a digital file generated by a computer program. A 3D printer was the equipment utilized in AM. When orthopedic doctors and tissue engineering professionals saw the use of this technology to produce gadgets and models to aid in surgical procedures, as well as tissue printing and cultivation, 3D bio-printing gained significance in health. Bio-inks/hydrogels containing cells, medicines, and growth modulators are utilized in bio-printing to create scaffolds and cellular 3D structures. It is a process that utilizes computer-aideddesign (cad) data to create three-dimensional objects through the successive accumulation of materials. this technology has the potential to revolutionize various industrial sectors and production lines by reducing time and cost while producing more efficient products. the aerospace, automobile, and healthcare industries are particularly poised to benefit from the mass production capabilities of AM. A particularly promising application of this technology is 3D bioprinting, which involves the creation of 3D structures. this research involves the creation of a 3D bio-printing platform based on extrusion for manufacturing hydrogels. To expel the biomaterial, a bio-extruder with an adjustable syringe pump holder is used. While the syringe pump holder is designed to securely hold syringes of various sizes, ranging from 1ml to 5ml. the syringe pump holder is adjustable to accommodate different syringe diameters and lengths.
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