Results 211 to 220 of about 2,673 (256)
Evaluation of various root canal irrigation methods in primary teeth: a systematic review. [PDF]
BMC Oral HealthValizadeh M +4 more
europepmc +1 more source
The X-Ray Crystal Structure of BorF, the Flavin Reductase Subunit of a Two-Component Flavin-Dependent Tryptophan Halogenase. [PDF]
ProteinsMa Z, Rady EW, de Silva AJ, Bellizzi JJ.
europepmc +1 more source
Enamel Maturation as a Systems Physiology: Ion Transport and Pi Flux. [PDF]
CellsZarinfar M +4 more
europepmc +1 more source
Acoustic Measurements on a Sonic Crystals Barrier
Energy Procedia, 2015 AbstractThis paper describes the measurements carried out over a sonic crystal at normal incidence according to EN 1793-6, which allows to cancel ground reflection and edge diffraction by applying suitable windowing techniques. The sample was made of hollow PVC pipes with an outer diameter of 160mm arranged in a square lattice with lattice constant 0.2
, Paolo Guidorzi, Alessandro Marzani
exaly +3 more sources
Valley vortex states in sonic crystals
2016 Progress in Electromagnetic Research Symposium (PIERS), 2016 Valleytronics is quickly emerging as an exciting field in fundamental and applied research. In this Letter, we study the acoustic version of valley states in sonic crystals and reveal a vortex nature of such states. Besides the selection rules established for exciting valley polarized states, a mimicked spin Hall effect of sound is proposed further ...
Jiuyang Lu, Chunyin Qiu, Zhengyou Liu
exaly +4 more sources
Spatial filtering of sound beams by sonic crystals [PDF]
Applied Acoustics, 2012 We propose and numerically demonstrate an efficient cleaning of spatial structure (spatial filtering) of sound beams by propagating them through at least twodimensional sonic crystals, i.e. through acoustic structures periodically modulated in longitudinal and in transversal direction with respect to the sound propagation direction. We show the spatial
Isabel Perez-Arjona +1 more
exaly +4 more sources
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Sound diffusers based on sonic crystals
The Journal of the Acoustical Society of America, 2013A sound diffuser is proposed based on sonic crystals, structures formed by a periodic distribution of cylindrical scatterers in a host medium, which is usually air. The diffuser is a so-called biperiodic structure, as formed by two arrays of sonic crystals with slightly different periodicities.
Redondo, Javier +3 more
openaire +3 more sources
Sonic crystal acoustic switch device
The Journal of the Acoustical Society of America, 2013This study reports a wave-controlled sonic crystal switch device that exhibits a destructive interference-based wave to wave reverse switching effect. By applying control waves, this acoustic device, composed of a two-dimensional square lattice sonic crystal block, reduces acoustic wave transmission from input to output.
Serkan, Alagoz, Baris Baykant, Alagoz
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2010
This work introduces the so named radial sonic crystals, which are a new type of acoustic materials characterized by the fact that their acoustical properties are periodic in the radial direction, either in two dimensions or in three dimensions.These periodic conditions allow the application of Bloch theorem to the corresponding wave equation for sound
Daniel Torrent, José Sánchez-Dehesa
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This work introduces the so named radial sonic crystals, which are a new type of acoustic materials characterized by the fact that their acoustical properties are periodic in the radial direction, either in two dimensions or in three dimensions.These periodic conditions allow the application of Bloch theorem to the corresponding wave equation for sound
Daniel Torrent, José Sánchez-Dehesa
openaire +1 more source
Sonic crystal with open resonant cavities
Physical Review E, 2007An improved scattering matrix method is developed to study a two-dimensional air-rigid sonic crystal with open resonant cavity, and the band structure and transmission properties are investigated. Numerical results show that both the band structure and the transmission coefficient are sensitive to the shape of the resonant cavity.
Zhilin, Hou +4 more
openaire +2 more sources