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Periodic and Near-Periodic Structures [PDF]
Shock and Vibration, 1995 Extensive work has been done on the vibration characteristics of perfectly periodic structures. This article reviews the different methods of analysis from several fields of study, for example solid-state physics and civil, mechanical, and aerospace ...
S. S. Mester, H. Benaroya
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Heliyon, 2023 This paper describes one-dimensional periodic shell structures that have variable cross sections, a new type of periodic shell structures made from photopolymer.
Yukuan Dou +5 more
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On Periodicity Detection and Structural Periodic Similarity [PDF]
Proceedings of the 2005 SIAM International Conference on Data Mining, 2005 This work motivates the need for more flexible structural similarity measures between time-series sequences, which are based on the extraction of important periodic features. Specifically, we present non-parametric methods for accurate periodicity detection and we introduce new periodic distance measures for time-series sequences.
Michail Vlachos +2 more
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IEEE Access, 2021 Tunable near-infrared sources are highly demanded due to their various applications in biomedicine, printing, barcode technology, and optical storage. In this paper, widely central phase-matching wavelength tunable and high efficiency are demonstrated in
Wen Liu, Shuanggen Zhang, Jinlei Liu
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A Simplified Analytical Method for Detuning Periodic Pile Barriers [PDF]
Journal of Applied and Computational Mechanics, 2022 Detuning such as slight variations among unit cells often occurs in the construction of periodic structures. In order to study this kind of structures, a supercell is usually introduced, which requires tremendous amounts of computer memory and time.
Jiahua Zhou, Yonggang Gao, Zhifei Shi
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Free and Forced Wave Motion in a Two-Dimensional Plate with Radial Periodicity
Applied Sciences, 2021 In many practical engineering situations, a source of vibrations may excite a large and flexible structure such as a ship’s deck, an aeroplane fuselage, a satellite antenna, a wall panel.
Elisabetta Manconi +3 more
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Dispersion Diagram of Trigonal Piezoelectric Phononic Structures with Langasite Inclusions
Crystals, 2021 The dispersion relation of elastic Bloch waves in 1-3 piezoelectric phononic structures (PPnSs) with Langasite (La3Ga5SiO14) inclusions in a polymeric matrix is reported.
Edson Miranda +6 more
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Periodic Auxetics: Structure and Design [PDF]
The Quarterly Journal of Mechanics and Applied Mathematics, 2017 Materials science has adopted the term of auxetic behavior for structural deformations where stretching in some direction entails lateral widening, rather than lateral shrinking. Most studies, in the last three decades, have explored repetitive or cellular structures and used the notion of negative Poisson's ratio as the hallmark of auxetic behavior ...
Borcea, Ciprian S., Streinu, Ileana
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IEEE Access, 2022 Here, we first aim to explain practical considerations to design and implement a reconfigurable intelligent surface (RIS) in the sub-6 GHz band and then, to demonstrate its real-world performance.
Ali Araghi +6 more
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DOUBLY PERIODIC TEXTILE STRUCTURES [PDF]
Journal of Knot Theory and Its Ramifications, 2009 Knitted and woven textile structures are examples of doubly periodic structures in a thickened plane made out of intertwining strands of yarn. Factoring out the group of translation symmetries of such a structure gives rise to a link diagram in a thickened torus, as in [2]. Such a diagram on a standard torus in S3 is converted into a classical link by
Morton, H. R., Grishanov, S. A.
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