vectorized algorithms for astronomical image processing

astronomical image processing (aip) needs extremely interactive software systems. it is therefore necessary to execute in a short time frequently used, time consuming elaborations, such as convolution, geometrical normalization and geometrical correction. in the paper such operations have been split in a scalar part (typical of the operat..

compatibility of selected superalloys with molten lif-caf/sub 2/ salt

a solar dynamic heat receiver incorporating thermal energy storage is being designed and will be fabricated and tested to advance this technology for use on the us space station freedom corrosion testing conducted to determine the most compatible materials for this application is described. several high-temperature alloys have been tested..

the computer-based examination' testing the test

summary form only given. the computer-based examination (cbx) research project was developed by the national board of medical examiners (nbme) to better assess the competence of physicians. the examination software simulates an actual patient encounter and requires the physician, without the help of listed answers, to define the managemen..

automated factual information system textinfos

the development of the textinfos information system for the storage of factual information on textile machinery began at the research institute of the cotton industry in 1981. the authors describe the system which runs on two types of computers' adt 4500 and ibm pc compatibles. the software, written in pascal, handles' input of data: proc..

a self-testing reconfigurable cam

the authors describe a 2- mu m cmos reconfigurable content addressable memory (rcam), organized as 256 words by 64 b, that can be written, searched, or read with 100-ns cycle time. designed for general high-speed table lookup applications, the rcam has self-test and reconfiguration features to simplify testing and improve yield in test mo..

analytical solutions to the collection growth equation' comparison with approximate methods and application to cloud microphysics parameterization schemes

a closed form solution for the collection growth equation as used in bulk microphysical parameterizations is derived. although the general form is mathematically complex, it can serve as a benchmark for testing a variety of approximations. two special cases that can immediately be implemented in existing cloud models are also presented. t..

field testing long-path fourier transform infrared (ftir) spectroscopy for measurements of atmospheric gas concentrations

the long-path capabilities of fourier-transform infrared (ftir) spectroscopy allow field measurements of trace gas concentrations over spatial scales intermediate between those commonly used by biologists (10 cm-10 m) and climatologists (>200 km). these intermediate scale measurements are critical to relate small plot findings to data on ..

a program optimization system for the cleanup of doe hazardous waste sites' an application to fy 1990 funding decisions

describes a formal system used by the department of energy (doe) as an aid for allocating funds for cleaning up hazardous waste sites. the system, called the program optimization system (pos), is based on multiattribute utility analysis and was developed for doe's hazardous waste and remedial actions divisions (hwrad). hwrad has responsib..

a reconfigurable content addressable memory

a 256 word by 64 b reconfigurable content addressable memory (rcam) that can be written, searched, or read with a 100 ns cycle time is described. designed for general high-speed table lookup applications, the rcam has self-test and reconfiguration features to simplify testing and improve yield. for more than 256 words, the rcam has extens..

diffusion in semi-dilute polymer solutions. a complementary experiment

relaxation times of concentration fluctuations in semi-dilute solutions of polydimethylsiloxane, have been measured at several values of the reciprocal wave vector q, with the neutron spin echo spectrometer of the laboratoire leon brillouin. the experiment has been carried out successively on a solute of identical chains, and on a solute ..