排序方式: 共有9条查询结果,搜索用时 15 毫秒
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1.IntrodnctionWegiveaproofofthestrongconvergenceinofthesolutionoftheparabolicapproximationtowardstheentropicsolutiontothescalarconservationlawwhereuo(RN),udenotessomeapproximationofuosuchthatandthefluxfsatisfiesTheconvergenceoftheapproximatesolutions... 相似文献
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A. A. Nedelin 《Journal of Mathematical Sciences》1979,11(3):455-465
The field of a point source in the waveguide at a point slightly above the waveguide is investigated.Translated from Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklova AN SSSR, Vol. 51, pp. 138–154, 1975.In conclusion, the author expresses his gratitude to his scientific advisor V. S. Buldyrev. 相似文献
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A. V. Gladyshev M. I. Belovolov S. A. Vasiliev E. M. Dianov O. I. Medvedkov A. I. Nadezhdinskii O. V. Ershov A. G. Beresin V. P. Duraev E. T. Nedelin 《Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy》2004,60(14):496-3340
This paper deals with the development of a novel single-frequency tunable diode laser with fiber-optic output for gas-analysis applications. The approach we propose is a convenient, simple and cheap solution for spectroscopy of single absorption lines of any gases having absorption bands in the optical fiber transparency window (0.7 microm/1.7 microm). The presence of fiber-optic output is an additional advantage for remote sensing applications. The laser operation is demonstrated as applied to R7 line of 2 nu(3) methane absorption band at lambda = 1.645 microm. The mode-hop-free tuning range of 35 GHz (1.2 cm(-1)) has been achieved. 相似文献
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In this article, we introduce the concept of lacunary statistical convergence of order α of real number sequences and give some inclusion relations between the sets of lacunary statistical convergence of order α and strong Nαθ(p)-summability. Furthermore, some relations between the spaces Nαθ(p) and Sαθare examined. 相似文献
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Gladyshev AV Belovolov MI Vasiliev SA Dianov EM Medvedkov OI Nadezhdinskii AI Ershov OV Beresin AG Duraev VP Nedelin ET 《Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy》2004,60(14):3337-3340
This paper deals with the development of a novel single-frequency tunable diode laser with fiber-optic output for gas-analysis applications. The approach we propose is a convenient, simple and cheap solution for spectroscopy of single absorption lines of any gases having absorption bands in the optical fiber transparency window (0.7 microm/1.7 microm). The presence of fiber-optic output is an additional advantage for remote sensing applications. The laser operation is demonstrated as applied to R7 line of 2 nu(3) methane absorption band at lambda = 1.645 microm. The mode-hop-free tuning range of 35 GHz (1.2 cm(-1)) has been achieved. 相似文献
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Convey P BRITISH ANTARCTIC SURVEY NATURAL ENVIRONMENT RESEARCH COUNCIL HIGH CROSS MADINGLEY ROAD CAMBRIDGE CB ET 《Cryo letters》2000,21(2):73-82
Short summer seasons with low thermal energy input characterise polar ecosystems. Climatic variables and physical isolation of terrestrial habitats act as selective filters which must be passed to allow colonisation, establishment and survival in these extreme environments. Life history studies of the terrestrial biota of such ecosystems give little evidence of adaptive responses to low temperatures having evolved in situ, even though behavioural, ecophysiological and biochemical features allowing tolerance of the likely extremes are well-developed. Observed life history strategies are often consistent with the general predictions of adversity (A) or stress (S) selection. However, biota successful in these extreme environments may be better-grouped by the lack of particular life history features, rather than common possession. 相似文献
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In this paper, we define a new generalized difference sequence space involving lacunary sequence. Then, we examine k-NUC property and property (β) for this space and also show that it is not rotund where p = (pr) is a bounded sequence of positive real numbers with pr ≥ 1 for all r ∈ N. 相似文献
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In this article, we introduce the concept of lacunary statistical convergence of order α of real number sequences and give some inclusion relations between the sets of lacunary statistical convergence of order α and strong Nθα(p)-summability. Furthermore, some relations between the spaces NθαSθα are examined. 相似文献
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