STAR computer program

Numerous analyses of data routinely collected in the United States have been performed by the U.S. National Climatic Center, results of these analyses are available at reasonable cost. The joint frequency of Pasquill stability class, wind direction class (primarily to 16 compass points), and wind speed class (in six classes) has been determined for various periods of record for over 200 observation stations in the United States from either hourly or 3-hourly data. A computer program called STAR (STability ARray) estimates the Pasquill class from the elevation of the sun (approximated from the hour and time of year), wind speed, cloud cover, and ceiling height. STAR output for seasons and the entire period of record can be obtained from the Center. Table 21-2 is similar in format to the standard output. This table gives the frequencies for D stability, based on a total of 100 for all stabilities. 

Kinetic analysis according to the model-free approach by Kissinger-Akahira-Sunose [25, 26] was performed with the computer program Excel. For kinetic analysis according to the advanced Vyazovkin method [27], the STAR software... 

We present here the results of abundance measurements of iron, calcium and nickel in four open clusters, from UVES spectra of solar type stars. A code developed by one of the authors (Francois) performs line recognization, equivalent width measurements and finally obtains the abundances by means of OSMARCS LTE model atmosphere [4]. Temperature, gravity and microturbulence velocity have to be input to the program. This is made in an automatic way for a grid of values chosen on photometric basis. Those that best reproduce excitation and ionization equilibria are selected and used, namely when no significant trend of the computed abundances is seen, neither versus the excitation potential of the line nor versus its equivalent width, and for which the abundances obtained with lines of different ionization stages of the same specie give equal results within the errors. This check is made with iron lines, we have in fact at least thirty Fe I lines in each star, and six Fell lines. 

Figure 9. Total ion chromatogram for Boscan crude oil obtained by computer summation of ions in the mass range 550—850. Analyses were performed on a 25 m x 0.3 mm i.d. OV-I coated (0.17//m) flexible silica capillary (Hewlett-Packard) using helium carrier gas at a linear flow rate of 50 cm/s. Following on-column injection of ca. 2.5 fig of porpyrins as their (TBDMSO)2Si(IV) derivatives (e.g. see inset, desoxophylloerythroacetioporphyrin derivative, major component of starred peak), the GC oven temperature was programmed ballistically from ambient to 150 °C, then from 150-290 °C at 3°C/min. The retention time scale has been converted to Kovats retention indices by computer interpolation from co-chromatographed n-alkanes..

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