共查询到9条相似文献,搜索用时 15 毫秒
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Masaaki Kijima 《商业与工业应用随机模型》2021,37(1):17-20
In this note, some point of views on virtual ages are presented in terms of the discussion paper written by Finkelstein and Cha, which include generalized stochastic order‐based virtual ages, system‐level virtual ages, virtual ages in Weibull distribution and repair degrees with virtual ages. Finally, some possible future researches on virtual ages are described. 相似文献
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J. Szabados 《Journal of Approximation Theory》2000,103(2):511
It is shown that the interval where the nodes of a “good” interpolation polynomial are situated is strongly connected with the Mhaskar–Rahmanov–Saff number. 相似文献
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One way of investigating what children learn about animals is to examine, the menial models they reveal through their talk when they come face to face with animal representations. In this study, representations were provided by (a) robotic models in a museum, (b) preserved animals in a museum, and (c) preserved animals borrowed from a museum and presented in a school setting. By recording pupil talk in these three settings and then analyzing the content of the talk for comments about the anatomy of animals, their behaviour, habitat features, and so on, both similarities and significant differences are revealed by this study, depending on the setting. Based on these findings, recommendations are made for science education in both classroom and museum settings. 相似文献
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Ashok Nimgade 《Complexity》2016,21(Z2):613-622
Imperial Rome with its >50% assassination rate of emperors, many of whom are depicted in history as ‘deranged’, initially appears a chaotic period of history beyond the purview of science. But time series analysis indicates this violence occurred non‐randomly: reign length was autocorrelated and demonstrated ‘memory persistence,’ and short reigns occurred in clusters. Additionally, deviations from average reign‐length occurred in patterns matching the Empire's rise and decline. A model is proposed for how army‐backed usurpation and post‐coup instability likely generated the observed cycles. The five‐century span of Imperial Rome likely makes it the longest‐lived regime with fair documentation, and potentially provides a ‘laboratory’ with ongoing relevance for studying transmission of violence and instability. © 2016 Wiley Periodicals, Inc. Complexity 21: 613–622, 2016 相似文献
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Zhanqiang Bai 《代数通讯》2018,46(9):3689-3710
In this paper, we give a method to compute the Gelfand–Kirillov dimensions of some polynomial–type weight modules. These modules are infinite-dimensional irreducible 𝔬(n,?)-modules and 𝔰𝔭(2n,?)-modules that appeared in the ?-graded oscillator generalizations of the classical theorem on harmonic polynomials established by Luo and Xu. We also found that some of these modules have the secondly minimal GK-dimension, and some of them have the larger GK-dimension than the maximal GK-dimension apearing in unitary highest-weight modules. 相似文献
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The equation
(t) − c(t)x(t − τ) is considered in the critical case. For it, the asymptotic behavior of dominant and subdominant solutions is studied. A generalization is made and connections with known results are discussed. 相似文献