Results 251 to 260 of about 1,597,523 (296)

Neutral transport analysis of recent DIII-D neutral density experiments

Nuclear Fusion, 2003
Recent measurements of the neutral densities both inside and outside the separatrix near the X-point of the DIII-D tokamak, in both L- and H-mode plasmas, are analysed with the two-dimensional transmission/escape probability neutral transport code GTNEUT and with the two-dimensional Monte Carlo code DEGAS.
J Mandrekas, R.J Colchin, W.M Stacey, D Zhang, L.W Owen   +4 more
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A neutral-density probe

Journal of Scientific Instruments, 1966
A probe is constructed to measure the density of the neutral atoms in a quiescent magnetoplasma. The highly-ionized bounded plasma is produced in a machine similar to the Princeton University Q machine. The probe is calibrated to measure the density of neutral particles in a caesium plasma.
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Nonparametric estimation of risk neutral density

2023
Ce mémoire vise à estimer la densité neutre au risque (Risk neutral density (RND) en anglais) par une approche non paramétrique tout en tenant compte de l’endogénéité. Les prix transversaux des options européennes sont utilisés pour l’estimation. Le modèle principal considéré est la régression linéaire fonctionnelle.
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Neutral density measurements in doublet III

Journal of Vacuum Science and Technology, 1982
In the Doublet III tokamak a variety of cross-sectionally-shaped plasmas has been investigated. Simple magnetically-shielded ionization gauges monitoring the working gas pressure show a striking dependence upon plasma shape. Average neutral density varies over two orders of magnitude.
J. S. deGrassie, J. C. DeBoo, M. A. Mahdavi, N. Ohyabu, M. Shimada   +4 more
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The transition density for multiple neutral alleles

Theoretical Population Biology, 1979
Abstract For a single genetic locus with multiple alleles, Littler and Fackerall (1975, Biometrics 31 , 117–123) found the transition density of the allelic proportions in the case of no mutation and no selection. Their method is found to be suitable for a model in which symmetric mutation is allowed between alleles. The sampling probabilities and
openaire   +2 more sources

Neutral hydrogen density measurement in TMSPP

Acta Physica Sinica (Overseas Edition), 1993
Resonance fluorescence of neutral hydrogen illuminated by Hα (656.3 nm) radiation provides a technique for spatially and temporally resolved density measurements of neutral hydrogen in high temperature plasma. Experiments have been performed in the exhaust of a tandem mirror space propulsion device.
Yao Xin-zi, T. F Yang, F. R Chang-diaz
openaire   +1 more source

Physics-Based Neutral Density Model

2005
Abstract : A data assimilation system for specifying the thermospheric developed over the last several years. The particular benefit creation of a data assimilation system that makes use of a physical model, the Coupled Thermosphere-Ionosphere Model (CTIM) (Fuller-Rowell et al. 1996).
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Application of neutral-density filters to nonuniformity correction

Applied Optics, 2019
Two-point nonuniformity correction (NUC) is the most effective and commonly used algorithm for scientific and commercial infrared imagers. However, conventional two-point NUC requires two references at different levels of flux, which are sometimes difficult to obtain.
Songtao, Chang, Yaoyu, Zhang
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Neutral Air Density and Composition

1973
The thermosphere (85 to 500 km) is heated primarily by the following processes: (a) absorption of solar UV, EUV, and X-rays (λ= 1700 to 8 A); (b) dissipation of solar wind energy deposited into the thermosphere through solar wind magnetosphere upper atmosphere interactions (including absorption of accelerated solar wind particles ...
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Neutral density liquid formulations for nematode-based biopesticides

Biotechnology Letters, 2004
Entomopathogenic nematodes are widely used as biological insecticides for agricultural and horticultural pests. In the vast majority of cases, commercial products contain nematodes partially dehydrated on to inert solid carriers. Nematode survival in these products is generally poor, they are difficult to handle and are not suitable for use with all ...
Michael, Wilson, Elena, Ivanova
openaire   +2 more sources