Project setup

Simulations of the adaptive reconstruction have been performed for a single slice of a porosity in ferritic weld as shown in Fig. 2a [11]. The image matrix has the dimensions 230x120 pixels. The number of beams in each projection is M=131. The total number of projections K was chosen to be 50. For the projections the usual CT setup was used restricted to angels between 0° and 180° with the uniform step size of about 3.7°. The diagonal form of the quadratic criteria F(a,a) and f(a,a) were used for the reconstruction algorithms (5) and (6). 

Clearly, however, the flow simplification would be invalid on a small site with episodic projects, or in contexts with significant downtime due to changeover and setup activities for project-specific assays. Such simulation problems covering multiple projects and multiple assays, with use of a mix of shared and dedicated resources, can rapidly become intractable, and an early, com-monsense selection of the focus area for simulation is essential. 

Export Aj Code... Close Project lrnpert Data... Paoe Setup, ... 

In practice, either a pole figure has been measured in a texture-goniometer setup, or a 2D SAXS pattern with fiber symmetry has been recorded. In the first case we take the measured intensity g (pole figure. In the second case we can choose a reflection that is smeared on spherical arcs and project in radial direction over the range of the reflection. From the measured or extracted intensities I (orientation parameter by numerical integration and normalization... 

A pilot-scale demonstration remediating harbor sediment was conducted 1 year before the SITE demonstration. Based on the pilot-scale demonstration, the processing costs for a fuU-scale, 110-ton/day unit were projected to be 230/ton (September 1992 U.S. dollars). It is assumed that the unit will be down approximately 30% of the time for maintenance and design improvements in the first year of operation. Based on this system availability, 28,105 tons can be processed in one year. This cost included estimates for variable costs, fixed costs, and deprecia-tion/insurance. Variable costs include diesel fuel for a mobile generator, hydrogen, and caustic. Fixed costs include labor diesel fuel for pumps, heaters, process equipment, and instrumentation propane, water and sewer and parts and supplies. Depreciation/insurance costs include capital cost depreciated over a 3-year period, general insurance costs, and pollution liabihty insurance. This analysis does not include costs for setup and demobilization (D128007, pp. 5.12-5.14). 

Don t block the projected image with your body. A good setup can help Place the projector relatively high, or project the image onto an elevated screen. 

This allows you to store your layout (Save layout...) and to reload it (Load layout...) for later use in order to get standardised plots of your 2D spectra. With these commands the kind of windows (spectrum, title, parameter), their position and size and additional features (axis, units, projections, parameters,...) are stored and loaded respectively. After loading a layout, these layout parameters may be inspected and if necessary modified in the Page Setup dialog box opened with the Page Setup... command (section 4.10.2) before a data set is loaded and plotted. 

Choose the Page Setup... option in the Output pull-down menu and select the plotting parameters and projections to be included in the plot. Adjust the sizes of all windows (title, parameter, spectrum) to the size of the paper sheet. Set up a title and select the parameters to be plotted. Load the defined levels with the Load button, choose different colors for the levels if you have a multicolor output device. Click the Preview button to inspect the final layout in the Preview window. Repeat these steps, load the defined levels with the Load button as before, but add additional contour levels with the Fill button. 

In the old CT unit, the detectors are stationary in a particular view and the collimators move by a desired angle to obtain projections for various chords. The intensity of radiation as detected by the detectors is not uniform it is maximum when the collimator passes the center of the detector and minimum at the two edges. To overcome this non-uniformity in the new setup, the collimator position has been fixed at the center of the detector and the whole detector-collimator rack is rotated (Fig. 3a). 

FIGURE 8.14. (A) A schematic illustration of the setup used to project an F-shaped object onto the focal plane through an array of microlenses. (B, C) images formed at the focal plane of an array of mushroom-shaped (B) and hemispherical (C) microlenses. The microlenses used in all of these demonstrations were fabricated by templating 5.7- tm polystyrene beads against 2D arrays of cylindrical holes that were 5 pm in height and diameter. 

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