Results 231 to 240 of about 1,011,446 (267)
Constructing the minimal period of homomorphisms into
Indagationes Mathematicae, 2012 AbstractFollowing on from the work of Bridges and Hendtlass (2010) [5], we provide geometric conditions under which the minimal period of a continuous periodic homomorphism from R onto a nontrivial metric abelian group contained in Rn can be constructed within the framework of Bishop’s constructive mathematics.
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Minimal periodic realizations of transfer matrices
IEEE Transactions on Automatic Control, 1992Summary: Periodic controllers designed based on the so-called lifting technique are usually represented by transfer matrices. Real-time operations require that the controllers be implemented as periodic systems. We study the problem of realizing an \(Nn_ 0\times Nn_ i\) proper rational transfer matrix as an \(n_ i\)-input \(n_ 0\)-output \(N\)-periodic
Ching-An Lin, Chwan-Wen King
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Minimal dictionaries for spanning periodic signals
2015 49th Asilomar Conference on Signals, Systems and Computers, 2015Recently, several high dimensional dictionary representations were proposed for discrete time periodic signals. These dictionaries could span any periodic signal whose period lies in a given range 1 ≤ P ≤ Pmax. Such dictionaries were used in various ways to estimate unknown periods.
Tenneti, Srikanth V. +1 more
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Minimal Period Estimates of Periodic Solutions for Superquadratic Hamiltonian Systems
Journal of Mathematical Analysis and Applications, 1999 The authors study the minimal period problem for first-order Hamiltonian systems which may not be strictly convex. First, by using the iteration formula of the Maslov-type index theory developed by Dong and Long, the authors obtain a new relationship between the iteration number and the Maslov-type indices.
Fei, Guihua +2 more
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Task period selection to minimize hyperperiod
ETFA2011, 2011In this paper a new task model with periods defined as ranges is proposed with the main goal of drastically reduce the hyperperiod of the task set. The model is focused to be applied in cyclic scheduling, where the length of the major cycle of the plan is determined by the hyperperiod. But it also can be applied in synthetic task sets generation, where
Vicent Brocal +3 more
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Periodic signals with minimal power fluctuations
The Journal of the Acoustical Society of America, 1991In this article, Pumplin’s algorithm [J. Pumplin, J. Acoust. Soc. Am. 78, 100–104 (1985)] is used to find periodic waveforms with minimal power fluctuations. Starting with a particular power spectrum, the algorithm can find a set of phases for the harmonics such that the variance in waveform power is a minimum or near a minimum.
W M, Hartmann, J, Pumplin
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Clock period minimization with wave pipelining
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 1993A method using a linear program for adjusting clock delays in individual flip-flops to minimize the clock period through the use of wave pipelining is discussed. Edge-triggered flip-flops are used as the circuit memory elements, and controlled delays are introduced in the time of clock signal arrivals at these elements.
JOY, DA, CIESIELSKI, MJ
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Register binding for clock period minimization
Proceedings of the 43rd annual conference on Design automation - DAC '06, 2006In modern high-speed circuit design, the clock skew has been widely utilized as a manageable resource to improve the circuit performance. However, in high-level synthesis stage, the circuit is never optimized for the utilization of clock skew. This paper is the first attempt to the high-level synthesis of non-zero clock skew circuits.
Shih-Hsu Huang +3 more
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Physica B+C, 1985
Abstract An introduction is given to periodic minimal surfaces which are general geometrical invariants, like the regular polyhedra and the periodic semi-regular polyhedra, and which can be seen in a variety of real structures, such as silicates, lyotropic colloids and mineralised biological formations, when these are examined at a resolution ...
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Abstract An introduction is given to periodic minimal surfaces which are general geometrical invariants, like the regular polyhedra and the periodic semi-regular polyhedra, and which can be seen in a variety of real structures, such as silicates, lyotropic colloids and mineralised biological formations, when these are examined at a resolution ...
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Minimizing Service and Operation Costs of Periodic Scheduling
Mathematics of Operations Research, 2002We study the problem of scheduling activities of several types under the constraint that, at most, a fixed number of activities can be scheduled in any single time slot. Any given activity type is associated with a service cost and an operating cost that increases linearly with the number of time slots since the last service of this type.
Amotz Bar-Noy +3 more
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