Results 21 to 30 of about 3,292,095 (334)
Occupational Cohort Time Scales [PDF]
Journal of Occupational & Environmental Medicine, 2015 This study explores how highly correlated time variables (occupational cohort time scales) contribute to confounding and ambiguity of interpretation.Occupational cohort time scales were identified and organized through simple equations of three time scales (relational triads) and the connections between these triads (time scale web).
Deubner, David C., Roth, H. Daniel
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Liquidity crises on different time scales [PDF]
, 2015 We present an empirical analysis of the microstructure of financial markets and, in particular, of the static and dynamic properties of liquidity. We find that on relatively large time scales (15 min) large price fluctuations are connected to the failure
Corradi, Francesco +2 more
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The Convolution on Time Scales
Abstract and Applied Analysis, 2007 The main theme in this paper is an initial value problem containing a dynamic version of the transport equation. Via this problem, the delay (or shift) of a function defined on a time scale is introduced, and the delay in turn is used to introduce the ...
Martin Bohner, Gusein Sh. Guseinov
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Time and length scales in spin glasses [PDF]
, 2003 We discuss the slow, nonequilibrium, dynamics of spin glasses in their glassy phase. We briefly review the present theoretical understanding of the spectacular phenomena observed in experiments and describe new numerical results obtained in the first ...
A P Young +19 more
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Time‐scale transformations of discrete time processes [PDF]
Journal of Time Series Analysis, 2003 Abstract. This paper investigates the effects of temporal aggregation when the aggregation frequency is variable and possibly stochastic. The results that we report include, as a particular case, the well‐known results on fixed‐interval aggregation, such as when monthly data are aggregated into quarters.
Oscar Jorda, Massimiliano Marcellino
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Forward Curvatures on Time Scales
Abstract and Applied Analysis, 2011 We also introduce forward curvature of a curve and give some formulas to calculate forward curvature of a curve on time scales which may be an arbitrary closed subsets of the set of all real numbers.
M. S. Seyyidoglu +4 more
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Canonical time-frequency, time-scale, and frequency-scale representations of time-varying channels [PDF]
Communications in Information and Systems, 2005 Mobile communication channels are often modeled as linear time-varying filters or, equivalently, as time-frequency integral operators with finite support in time and frequency. Such a characterization inherently assumes the signals are narrowband and may not be appropriate for wideband signals.
Rickard, Scott T. +3 more
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Time scales in spectator fragmentation [PDF]
Nuclear Physics A, 2001 8 pages, with 5 included figures; To appear in the proceedings of the CRIS 2000 conference; Also available from http://www-kp3.gsi.de/www/kp3/aladin_publications ...
C. SCHWARZ +37 more
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Avoidance Control on Time Scales
, 2009 We consider dynamic systems on time scales under the control of two agents. One of the agents desires to keep the state of the system out of a given set regardless of the other agent's actions.
A. Bressan +19 more
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Crystal Symmetry and Time Scales
, 2001 The relation between the notion of crystalline symmetry and characteristic time intervals when this symmetry could be observed is analyzed. Several time scales are shown to exist for a system of interacting particles. It is only when the observation time
Yukalov, V. I., Yukalova, E. P.
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