Results 11 to 20 of about 133,608 (290)
A Periodicity Metric for Assessing Maintenance Strategies [PDF]
, 2009 Organised by: Cranfield UniversityThe maintenance policy in manufacturing systems is devised to reset the machines functionality in an economical fashion in order to keep the products quality within acceptable levels.
ElMaraghy, H. A. +2 more
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Periodicity-enhanced structures for efficient sound absorption [PDF]
, 2016 In the present work, an overview of experimental investigations of the two types of periodicity-enhanced acoustic absorbing structures is given. In the first type of structures, the performance of acoustic absorbing materials is improved by providing a ...
Victor V. Krylov (1252356) +1 more
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Erratum: Point-to-Periodic and Periodic-to-Periodic Connections [PDF]
BIT Numerical Mathematics, 2004 This addition includes a list of essential corrections to the authors' paper [ibid. 44, No.~1, 41--62 (2004; Zbl 1052.65113)].
Dieci, Luca, Rebaza, Jorge
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Understanding Periodic and Non-periodic Chemistry in Periodic Tables [PDF]
Frontiers in Chemistry, 2021 The chemical elements are the “conserved principles” or “kernels” of chemistry that are retained when substances are altered. Comprehensive overviews of the chemistry of the elements and their compounds are needed in chemical science. To this end, a graphical display of the chemical properties of the elements, in the form of a Periodic Table, is the ...
Changsu Cao +5 more
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Evolution of periodicity in periodical cicadas [PDF]
Scientific Reports, 2015 AbstractPeriodical cicadas (Magicicada spp.) in the USA are famous for their unique prime-numbered life cycles of 13 and 17 years and their nearly perfectly synchronized mass emergences. Because almost all known species of cicada are non-periodical, periodicity is assumed to be a derived state.
Ito, Hiromu +7 more
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Distribution of histopathological types of thyroid tumors in 1999-2015 compared to 1966-1988 year period [PDF]
Archive of Oncology, 2020 Background: The most common thyroid tumors originate from the epithelial follicular cells. Etiology involved in the development of thyroid carcinoma is multifactorial, including external influences and genetic predisposition.
Makazlieva Tanja +3 more
doaj
Influence of atmospheric pressure change on gas sampling in mine closed area
矿业科学学报, 2020 The variation of atmospheric pressure will cause the exchange of air volume between the closed area of the mine and the external environment, which will have an impact on the gas migration in the closed area of the mine.In order to study the influence of
Lei Baiwei +3 more
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Effect of Latitude on Seasonality of Tuberculosis, Australia, 2002–2011
Emerging Infectious Diseases, 2012 Seasonal variation in tuberculosis diagnoses recently has been reported in various populations. In Australia, seasonality of tuberculosis diagnoses was more pronounced in areas where UV exposure is reduced and vitamin D deficiency is more prevalent.
Jennifer H. MacLachlan +2 more
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Natural catastrophes and point-like processes Data handling and prevision
Annals of Geophysics, 1998 A frequent approach when attempting to manage a natural catastrophe is in terms of a numerical model, by which we try to forecast its occurrence in space and time. But, sometimes this is difficult or even unrealistic.
G. P. Gregori
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SIAM Journal on Control and Optimization, 2010 This paper studies behaviors that are defined on a torus, or equivalently, behaviors defined in spaces of periodic functions, and establishes their basic properties analogous to classical results of Malgrange, Palamodov, Oberst et al. for behaviors on R^n. These properties - in particular the Nullstellensatz describing the Willems closure - are closely
Diego Napp Avelli +2 more
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