Results 91 to 100 of about 4,691,284 (303)
Mechanically tunable phononic band gaps in three-dimensional periodic elastomeric structures
, 2014 Three-dimensional periodic structures have many applications in acoustics and their properties are strongly related to structural details. Here we demonstrate through simulations the ability to tune the phononic band gaps of 3D periodic elastomeric ...
Bertoldi, Katia, Wang, Lifeng
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Exact artificial boundary conditions for problems with periodic structures [PDF]
, 2008 Based on the work of Zheng on the artificial boundary condition for the Schrödinger equation with sinusoidal potentials at infinity, an analytical impedance expression is presented for general second order ODE problems with periodic coefficients and its ...
Ehrhardt, Matthias, Zheng, Chunxiong
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Journal of Optoelectronical NanostructuresThis study investigates the optical density (OD) characteristics of one-dimensional photonic crystals (1D PCs) deposited on a polycarbonate substrate, focusing on the comparative performance of periodic and quasi-periodic architectures.
Hadi Rahimi
doaj
DNA ligase LigE increases bacterial transformation with damaged extracellular DNA
FEBS Letters, EarlyView.The DNA ligase LigE from the naturally competent Gram‐negative bacterium Neisseria gonorrhoaea increases transformation with cut extracellular DNA. This process is ATP‐dependent and relies on the catalytic activity of LigE; it also requires that LigE contains an intact periplasmic localisation sequence, indicating that ligE functions in the periplasm ...
Jolyn Pan +4 more
wiley +1 more source
Response of periodic structures [PDF]
, 1977 Periodic structures are defined as structures consisting of identical substructures connected to each other in identical manner. In chapter I, the response of periodic structures to harmonic excitation is described by a matrix difference equation.
Engels, Remi Carlos
core
An overview of recent developments in computational methods for periodic systems [PDF]
, 2007 : At the First IFAC Workshop on Periodic Systems (Como, Italy, 2001), a state of the art survey of computational methods for periodic systems has been presented (Varga and Van Dooren, 2001).
Andras Varga, Varga, Andreas
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IEEE Photonics Journal, 2018 Cholesteric liquid crystals exhibit the characteristics of photonic crystals with a photonic bandgap. A defect-mode cholesteric liquid crystal module was assembled in this study, and laser dye and gold nanoparticles are mixed into this module.
Yu-Sung Liu, Hui-Chi Lin, Han-Lin Xu
doaj +1 more source
FEBS Letters, EarlyView.Which brain hemisphere controls writing? This review synthesizes all five functional transcranial Doppler studies of writing (handwriting and typing) published to date in adults and children. Right‐handers show left‐hemispheric dominance for the linguistic component of writing (written word generation), whereas findings for left‐handers remain ...
Marietta Papadatou‐Pastou
wiley +1 more source
The factorization method for inverse elastic scattering from periodic structures [PDF]
, 2013 This paper is concerned with the inverse scattering of time-harmonic elastic waves from rigid periodic structures. We establish the factorization method to identify an unknown grating surface from knowledge of the scattered compressional or shear waves ...
Lu, Yulong, Zhang, Bo, Hu, Guanghui
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On Forward and Backward Modes in 1D Periodic Bounded Structures
IEEE Journal of MicrowavesWe discuss the issue of identifying the forward/backward nature of modes in bounded one-dimensional periodic structures. This identification is based on the possibility of adequately and uniquely defining the phase velocity in these types of structure ...
Oskar Zetterstrom +3 more
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