Imaging two-dimensional

Neutron imaging Two-dimensional H20 (liquid) Relatively high resolution technique, real-time data, applicable to typical fuel cell designs Need a powerful neutron source, very difficult to separate anode/cathode effects... 

While three-dimensional imaging is likely to have the most dramatic impact, there are opportunities to carry out fast radiography to image two-dimensional processes in thin foils at submillisecond rates. Such imaging can also be correlated with chemical information, including X-ray fluorescence maps. X-ray absorption spectroscopy, microdifffaction, and small-angle scattering. The spatial distribution of different chemical species is important for the development of robust corrosion... 

ROICs are used with arrays of detectors to make a sensor chip assembly, or SCA. The primary application of SCAs is to create images. Two-dimensional (2D) SCAs are the latest in the evolution through the four stages shown in Figure 7.1. 

Some discontinuities may be identified by a conventional two-dimensional ultrasonic technique, from which the well-known C-scan image is the most popular. The C-scan technique is relatively easy to implement and the results from several NDE studies have been very encouraging [1]. In the case of cylindrical specimens, a circular C-scan image is convenient to show discontinuity information. The circular C-scan image shows the peak amplitude of a back-scattered pulse received in the circular array. The axial scan direction is shown as a function of transducer position in the circular array. The circular C-scan image serves also as an initial step for choosing circular B-scan profiles. The latter provides a mapping between distance to the discontinuity and transducer position in the circular array. 

Segmentation method based on the analysis by Co-Occurrence Matrix is developed. We try to increase the quality of the obtained results by means of the application of two dimensional (2D) processing. We use Co-Occurrence Matrix for ultrasonic image segmentation. This tool, introduced by Haralick (1), was selected for the present study as several general considerations were favourable ... 

W.C. Chew and Y.M. Wang. Reconstruction of two-dimensional permittivity distribution using the distorted born iterative method. IEEE Transaetions on Medical Imaging, 9, 1990. 

Crommie M F, Lutz C P and Eigler D M 1993 Imaging standing waves in a two-dimensional electron gas Nature 363 524... 

Figure Bl.23.16. Plots of the two-dimensional fJ-faetors as a fiinotion of the deviation d) of the first-seeond interlayer spaeing from the bulk value. The experimental and simulated images along the (ill) and (I I2) azimuths of figure Bl.23,15 were used in the eomparison.

The main objective of a structure model is to produce an image ol a molecule that invokes 3D information although it is physically two-dimensional. Additional lighting effects (such as shadows on the objects of the structure) may enhance... 

Once the job is completed, the UniChem GUI can be used to visualize results. It can be used to visualize common three-dimensional properties, such as electron density, orbital densities, electrostatic potentials, and spin density. It supports both the visualization of three-dimensional surfaces and colorized or contoured two-dimensional planes. There is a lot of control over colors, rendering quality, and the like. The final image can be printed or saved in several file formats. 

Polymer or Fiber Diffraction. Polymers and fibers are often ordered ia one or two dimensions but not ordered ia the second or third dimension. The resulting diffraction patterns have broad diffuse diffraction maxima. The abiHty to coUect two dimensional images makes it possible to coUect and analyze polymer and fiber diffraction patterns. 

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