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10.1038/ncomms9037 http://scihub22266oqcxt.onion/10.1038/ncomms9037 C4560791!4560791!26304739     free     free     free Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Nat+Commun 2015 ; 6 (ä): ä Nephropedia Template TP {{tp|p=26304739|t=2015. Acoustic metamaterial for subwavelength edge detection |pdf=|usr=}}{{26304739}} gab.com Text Acoustic metamaterial for subwavelength edge detection JO: Nat Commun http://www.kidney.de/pget.php?&tw=1&pmid=26304739 #FOAvip Metamaterials have demonstrated the possibility to produce super-resolved images by restoring propagative and evanescent waves. However, for efficient information transfer, for example, in compressed sensing, it is often desirable to visualize only the fast spatial variations of the wave field (carried by evanescent waves), as the one created by edges or small details. Image processing edge detection algorithms perform such operation, but they add time and complexity to the imaging process. Here we present an acoustic metamaterial that transmits only components of the acoustic field that are approximately equal to or smaller than the operating wavelength. The metamaterial converts evanescent waves into propagative waves exciting trapped resonances, and it uses periodicity to attenuate the propagative components. This approach achieves resolutions ?5 times smaller than the operating wavelength and makes it possible to visualize independently edges aligned along different directions. Twit Text FOAVip Acoustic metamaterial for subwavelength edge detection ????Nat Commun http://www.kidney.de/pget.php?&tw=1&pmid=26304739 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=26304739 #FOAvip English Wikipedia <ref>{{Cite pmid|26304739}}</ref> Acoustic metamaterial for subwavelength edge detection #MMPMID26304739 Molerón M; Daraio C Nat Commun 2015[]; 6 (ä): ä PMID26304739show ga Metamaterials have demonstrated the possibility to produce super-resolved images by restoring propagative and evanescent waves. However, for efficient information transfer, for example, in compressed sensing, it is often desirable to visualize only the fast spatial variations of the wave field (carried by evanescent waves), as the one created by edges or small details. Image processing edge detection algorithms perform such operation, but they add time and complexity to the imaging process. Here we present an acoustic metamaterial that transmits only components of the acoustic field that are approximately equal to or smaller than the operating wavelength. The metamaterial converts evanescent waves into propagative waves exciting trapped resonances, and it uses periodicity to attenuate the propagative components. This approach achieves resolutions ?5 times smaller than the operating wavelength and makes it possible to visualize independently edges aligned along different directions. äAcoustic metamaterial for subwavelength edge detection (epmc).pdf DeepDyve Pubget Overpricing