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排序方式: 共有1257条查询结果,搜索用时 343 毫秒
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Machine Learning - We propose a data-driven approach to quantify the uncertainty of models constructed by kernel methods. Our approach minimizes the needed distributional assumptions, hence,... 相似文献
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Irine Banu Lucy 《Journal of Materials Science》2007,42(14):5875-5879
Capacitance and dielectric loss measurements were carried out using an Al/Cu–GeO2/Al sandwich structure for 0 to 10 vol% Cu films, 120–400 nm thick, deposited at 0.4–1.5 nm/s in the frequency and temperature
range 1–106 Hz and 90–573 K, respectively. The variation of capacitance and dielectric loss with frequency and temperature follows the
Goswami and Goswami model. Capacitance decreases slowly with increasing thickness and also varies with the change in deposition
rate of the cermet film. 相似文献
5.
I. D. Kashcheev S. N. Sychev M. N. Dunaeva L. A. Karpets P. A. Emel’yanov O. S. Ryakhova 《Refractories and Industrial Ceramics》2008,49(2):131-134
Compositions have been developed for nonshrinking vibrocast thermally insulating light refractory concretes with densities
of 1.0, 1.3, 1.5, and 1.8 g/cm3 for temperatures of use up to 1400°C. The structure and properties have been examined for the concrete of density 1.3 g/cm3.
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Translated from Novye Ogneupory, No. 4, pp. 29–32, April, 2008. 相似文献
6.
The influence of the chemical reactions occurring in the gas phase of a gas suspension flowing in a channel with penetrable
walls and the combustion of the condensed-impurity particles in this flow on its gasdynamic structure has been investigated.
It is shown that the order of the system of equations defining a flow of a chemically reactive gas suspension with a homogeneous
exothermic reaction proceeding at a definite rate and a heterogeneous combustion of the condensed-phase particles can be decreased
if certain assumptions are mode. The distributions of the parameters of the gas and dispersed phases were calculated as functions
of the rate of blow and the sizes of the particles.
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 80, No. 4, pp. 91–98, July–August, 2007. 相似文献
7.
András Ványolos Balázs Dóra Attila Virosztek 《Journal of Superconductivity and Novel Magnetism》2007,20(7-8):643-645
We report of a theoretical study on quasi-one dimensional unconventional charge density wave (UCDW) driven by electron–phonon
interaction. Within mean field theory, we find that the wavevector dependence of the coupling leads to a momentum dependent
single particle gap on the Fermi surface. The presence of small energy single particle excitations around the gap nodes significantly
changes the optical conductivity compared to the conventional CDW result. In addition to that, the collective phase excitation
arising from fluctuation of the order parameter leads to further qualitative changes of the conductivity and results in an
effective mass that is nonmonotonic in temperature.
相似文献
8.
S. Scalat D. Banu D. Hawes J. Parish F. Haghighata D. Feldman 《Solar Energy Materials & Solar Cells》1996,44(1):49
Full scale thermal storage tests were conducted in a room lined with PCM wallboard having latent heat storage capacity. The results were compared with those obtained from tests conducted in a similar room lined with ordinary wallboard. The research showed that PCM wallboard can function efficiently as a thermal storage medium which can be applied to peak load shifting, improved use of waste and solar heat as well as more efficient operation of heating and cooling equipment. 相似文献
9.
Results are provided for an experimental study of forming trajectories during drilling and the effect on them of cutting speed
and drilling depth.
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Translated from Izmeritel’naya Tekhnika, No. 8, pp. 31–33, August, 2006. 相似文献
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