845 research outputs found
Looking for the ideal combination distance: resolution with regard to the desired level of detail in laser scanning
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Selecting relevant predictors for presence-only species distribution modelling. A case study from the marine environment missing documented absences and uncertain distributions
Get PDFSelecting relevant predictors for presence-only species distribution modelling. A case study from the marine environment
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Photonic realization of the relativistic Kronig-Penney model and relativistic Tamm surface states
Full text linkPhotonic analogues of the relativistic Kronig-Penney model and of
relativistic surface Tamm states are proposed for light propagation in fibre
Bragg gratings (FBGs) with phase defects. A periodic sequence of phase slips in
the FBG realizes the relativistic Kronig-Penney model, the band structure of
which being mapped into the spectral response of the FBG. For the semi-infinite
FBG Tamm surface states can appear and can be visualized as narrow resonance
peaks in the transmission spectrum of the grating
Fishing for data and sorting the catch: assessing the data quality, completeness and fitness for use of data in marine biogeographic databases
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