Zobrazeno 1 - 10
of 475
pro vyhledávání: '"R. Gathers"'
Publikováno v:
South African Family Practice, Vol 60, Iss 4 (2018)
Background: Melanoma incidence among white South Africans is increasing. Among black individuals, melanoma is associated with advanced stage at presentation and significant mortality. Objectives: A study was undertaken to assess the perception of ski
Externí odkaz:
https://doaj.org/article/e77844e0a84b444fb31d88ff3db0e69f
Autor:
G. R. Gathers
Publikováno v:
International Journal of Thermophysics. 13:539-554
An analysis of multiwavelength pyrometry is made using Monte Carlo methods to evaluate the measurement error as a function of temperature for three, four, five, and six channels. Both a graybody and an emissivity with linear wavelength dependence are
Autor:
G. R. Gathers
Publikováno v:
International Journal of Thermophysics. 13:361-382
Multiwavelength pyrometry has been advertised as giving significant improvement in precision by overdetermining the solution with extra wavelengths and using least squares methods. Hiernaut et al. [1] have described a six-wavelength pyrometer for mea
Autor:
G. R. Gathers
Publikováno v:
International Journal of Thermophysics. 13:173-185
A numerical method has been devised to evaluate measurement errors for a three-channel ratio pyrometer as a function of temperature. The pyrometer is simulated by computer codes, which can be used to explore the behavior of various designs. The influ
Autor:
G. R. Gathers
Publikováno v:
International Journal of Thermophysics. 13:187-198
A numerical method devised to test ratio pyrometers has been used to explore the fitting of a blackbody spectrum and an emissivity model that assumes linear wavelength dependence and arbitrary temperature dependence. The slope and intercept coefficie
Autor:
G. R. Gathers
Publikováno v:
International Journal of Thermophysics. 11:693-708
The development of the Isobaric Expansion Experiment at Lawrence Livermore National Laboratory is described. Rod samples are self-heated by current from a capacitor bank while current and sample voltage, sample cross section, and temperature are meas
Publikováno v:
International Journal of Thermophysics. 11:819-833
The key issues and anticipated future directions in subsecond thermophysics research are presented and discussed. The main emphasis is placed on experimental techniques for measurements of selected thermophysical properties utilizing rapid volume hea
Publikováno v:
International Journal of Impact Engineering. 10:439-452
In the electric gun, the explosion of an electrically heated metal foil and the accompanying magnetic forces are used to accelerate a thin flyer plate to velocities as high as 18 km/s. Here we report preliminary results of a study to extend this capa
Autor:
Maler, D., Liziakin, G., Belozerov, O., Efimov, S., Rakhmilevich, D., Cohen, K., Krasik, Ya. E.
Publikováno v:
Journal of Applied Physics; 11/14/2023, Vol. 134 Issue 18, p1-11, 11p
Publikováno v:
Chinese Journal of Contemporary Neurology & Neurosurgery; Oct2024, Vol. 24 Issue 10, p850-857, 6p