Raster plot

Figure 1.4 Effects of MnPN stimulation on EEG patttern and PLH neuronal activity. Upper An MnPN 6 s stimulus train suppressed PLH neuronal discharge, evoked EEG synchronization, and reduced EMG activity. The sweep display shows effects of successive stimulus trains. The events display shows averaged PLH neuronal discharge rate in conjunction with train stimulation. Lower Raster plot showing neuronal discharge during single pulse stimulation. In this example, PLH neuronal activity was inhibited with a latency of about 10 ms inhibition lasted about 110 ms. Activation of MnPN neurons during NREM sleep would result in suppression of PLH neuronal activity.

Figure 4 Electrically evoked single-unit tactile responses recorded with microwire multielectrode arrays in rat hippocampus CA1, primary somatosensory cortex, and ventral posteromedial nucleus brain regions. (Upper) Raster plot of single-unit spikes before and after electrical current stimulation to whiskers. Each row is a separate trial. (Lower) Summed activity for all trials in 1-ms bins that demonstrate a response to electrical stimulation. The graphs show different latencies in firing for the three different regions. [Data reprinted from Ref. (1 3). Copyright (2007) National Academy of Sciences, U.S.]...

In this way we have, quite routinely, interfaces to vector plotting (ORTEP, PLUTO and MONSTER), raster plotting (COLOR and UNIRAS), conventional normal coordinate analysis with optimisation (MOLVIB), and ab initio calculations (IBMOL-6 and GAUSSIAN-70). ORTEP, PLUTO, IBMOL-6 and GAUSSIAN-70 are so well-known that they probably need no more mention here MONSTER, which is the property of Mr. Per Jacobi, Brede 50, DK-2800 Lyngby, is essentially a program for viewing... 

The conventional control chart is a graph having a time axis (abscissa) consisting of a simple raster, such as that provided by graph or ruled stationary paper, and a measurement axis (ordinate) scaled to provide six to eight standard deviations centered on the process mean. Overall standard deviations are used that include the variability of the process and the analytical uncertainty. (See Fig. 1.8.) Two limits are incorporated the outer set of limits corresponds to the process specifications and the inner one to warning or action levels for in-house use. Control charts are plotted for two types of data ... 

We have kept the data collection computer and its software simple and economical. The computing power and peripherals needed to provide high quality plotting and data reduction are available on a 32-bit minicomputer that supports a number of our projects. The floppy discs from the data collection process can be read directly into the data reduction computer. Special menus have been set up to facilitate plotting of the data on a high speed color raster display or on a high-quality multicolor pen plotter. 

The first graphical representation using MATLAB software is that of a two-dimensional contour surface plot of the data from Table 75-1 [2], This Figure 75-3 plot can represent multiple levels of j-axis data (absorbance) by the use of contours and color schemes. The MATLAB commands for generating this image are given in Table 75-2 where A represents the raster data matrix shown in Table 75-1. 

Fig. 7-5. Plot of the scores of discriminant function df 2 vs. scores of discriminant function df 1 of the different emission impact monitoring raster screens I, II and the emission impact sampling point of town III [(o) town I, ( ) town II, ( ) town III], (The circles correspond to the 5% risk of error of the MANOVA)...

Plots of maximum applied stress versus cycles to failure for (a) rotating-bending fatigue (R = -1) and for (b) uniaxial fatigue R = 0.1). (a) Data for base metal and the linear raster, (b) Data for the rectangular spiral raster are also included. Courtesy of C.B. Fuller and M.W. Mahoney, Rockwell Scientific Corporation, Thousand Oaks, CA... 

Figure 23. Successive fluorescence excitation images taken from the same area of a thin (ca. 25 nm) polymer film (PVB) doped with a low concentration of R6G molecules. The sample was raster scanned at a tip-sample separation of 5 nm and illuminated with lOnW (as measured in the far-field) of 514.5 nm light. The FWHM of the single molecule fluorescence spots is 160 nm. The intensities of the spots labeled A, B, and C are shown in the accompanying plot. Adapted from Ref. 30.

As seen in Section 3 excellent insight into surface quality, defects, and bulk purity can be obtained from scatter measurements. Also, astute analysis can result in simple, inexpensive in-process and final quality control procedures for production of a variety of surfaces, materials, and optics. As can be seen, much can be learned from visual examination of BRDF plots and raster scans. This is often sufficient for pass/fail tests of product quality. The data can also be analyzed in more detail using various formulas and computer programs. In addition, because the data are digital, they can be rapidly analyzed by computer in on-line process control applications. SORIC and leaders in the stray light community have developed a BRDF database (16, 17) for commonly used surfaces and materials employed by scientists and engineers (18,19, 20, 21, 22, 23). 

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