Classification of maximal length cycles by weight
Theorem formulation and proof for maximal length cycle classification by weight
Fredricksen, H.↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Automatic interpretation and classification of images by use of the Fourier domain
Automatic image interpretation and classification using two dimensional digital Fourier transforms
Andrews, H. C.↗
Application of remote sensors to the classification of aerial data at different scales - A case study in housing quality
Remote sensors applied to classification of aerial data concerning housing quality at different scales, using variables observation
Moore, E. G.↗
Solar coronal streamers. I - Observed locations, general evolution, and classification
Solar coronal streamers, considering disk locations, evolution, classification and morphological model
Bohlin, J. D.↗
Classification and signal analysis of pulse- width-modulated amplifiers, part 3 Annual report
Classification and signal analysis of pulse width modulated amplifiers
Honnell, M. A.↗
A classification and survey of computer system performance evaluation techniques
Classification and survey of computer system performance evaluation techniques
Source record↗
A classification of meteorite impact craters
Systematic classification of meteorite impact craters for lunar and planetary craters
Heorz, F.↗
Some sequential, distribution free pattern classification procedures with applications
Sequential, distribution-free pattern classification procedures tested on Gaussian and EEG patterns
Poage, J. L.↗
Potential functions in pattern classification algorithms
Pattern classification algorithms using potential functions to construct discriminant functions from sample points set
Meisel, W. S.↗
The chemical classification of iron meteorites. V - Groups IIIC and IIID and other irons with germanium concentrations between 1 and 25 ppm
Iron and stony iron meteorites chemical classification, noting Ni, Ga, Ge and Ir concentrations and metal phases
Schaudy, R.↗
A classification of impact craters
Planetary and lunar meteorite craters classification according to radius logarithm to base ten, covering diameter size from 2 microns to 2000 km
Hoerz, F.↗
Lunar rilles: A catalog and method of classification
A representative sample of lunar rilles observed on Lunar Orbiter 4 and 5 photographs is presented. A method of classification of rilles is described which will provide a means of quantitatively grouping rilles of similar planemetric shape. The method is based on a finite Fourier approximation of the edge of the rille. It provides an adequate approximation to all planemetric characteristics of the rille except rille recurvature.
Oberbeck, V. R.↗
Classification of radiating compact stars
A classification of compact stars, depending on the electron distribution in velocity space and the density profiles characterizing their magnetospheric plasma, is proposed. Fast pulsars, such as NP 0532, X-ray sources such as Sco-X1, and slow pulsars are suggested as possible evolutionary stages of similar objects. The heating mechanism of Sco-X1 is discussed in some detail.
Coppi, B.↗
Classification of spatially unresolved objects
A proportion estimation technique for classification of multispectral scanner images is reported that uses data point averaging to extract and compute estimated proportions for a single average data point to classify spatial unresolved areas. Example extraction calculations of spectral signatures for bare soil, weeds, alfalfa, and barley prove quite accurate.
Nalepka, R. F.↗
A study and classification of non-linear high frequency ionospheric instabilities by coupled mode theory.
Two basic high-frequency ionospheric instabilities are discussed - i.e., the three-wave parametric interaction, and the oscillating two-stream instability. In the parametric instability, the ion-acoustic wave has a complex frequency, whereas in the oscillating two-stream instability the ion-acoustic frequency is purely imaginary. The parametric instability is shown to be the only one whose threshold depends on the ion collision frequency. A coupled-mode theory is proposed which permits study and classification of high-frequency instabilities on a unified basis.
Harker, K. J.↗
Classification of ERTS-1 MSS data by canonical analysis
Classification of ERTS-1 MSS data by canonical analysis
Lachowski, H. M.↗
Change in Land Use in the Phoenix (1:250000) Quadrangle, Arizona Between 1970 and 1972: Successful Use of a Proposed Land Use Classification System
Change in land use in the Phoenix Quadrangle, Arizona between 1970 and 1972 - successful use of a proposed land use classification system
Place, J. L.↗
Land Use Classification and Change Analysis Using ERTS-1 Imagery in CARETS
Land use classification and change analysis using ERTS-1 imagery in Central Atlantic Research Test Site
Alexander, R. H.↗