Results 241 to 250 of about 80,948 (300)

Characterization of a LED-Based Non-Mydriatic Hyperspectral Retinal Camera. [PDF]

Transl Vis Sci Technol
Labrecque F, Jannaud M, Dang D, Hodgson L, van Wijngaarden P, Hadoux X.   +5 more
europepmc   +1 more source

Integrated fixation and stimulus channel for adaptive optics ophthalmoscopy. [PDF]

Biomed Opt Express
Bernucci MT, Liu Y, Ji Q, Crowell JA, Bowles-Johnson K, Keller MJ, Miller DT.   +6 more
europepmc   +1 more source

From high- to low-density EEG for automatic classification of dream experiences during stage 2 of NREM. [PDF]

Sleep Adv
Moctezuma LA, Molinas M, Abe T.
europepmc   +1 more source

Design and Experimental Demonstration of an Integrated Sensing and Communication System for Vital Sign Detection. [PDF]

Sensors (Basel)
Zhang C, Duan J, Lu S, Zhang D, Temiz M, Zhang Y, Meng Z.   +6 more
europepmc   +1 more source

Raman Gas Analysis with External Power Build-Up Cavity of Line-Narrowed 407-nm Laser Diode. [PDF]

Sensors (Basel)
Yao Z, Wang X, Zuo D.
europepmc   +1 more source

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Bandpass Filter Inspired Filtering Patch Antenna

2021 IEEE MTT-S International Wireless Symposium (IWS), 2021
A planar filtering patch antenna inspired by BPF (bandpass filter) prototype is proposed in this paper. The antenna has a very simple structure, while realizing multifunctional operation, including directional radiation and filtering functions. The principle of replacing the LC resonator of BPF prototype with a patch resonator is illustrated. The newly
Shuosheng Ji, Yuandan Dong
openaire   +1 more source

Inductorless bandpass filters

IEEE Journal of Solid-State Circuits, 1970
The technique of designing inductorless filters by replacing the inductors in conventional LC filters with gyrators and capacitors is considered for the special case of the high-quality channel bandpass filters used in multiplex telephony. One particular gyrator circuit, which has been found to be very satisfactory, using two operational amplifiers and
H.J. Orchard, D.F. Sheahan
openaire   +1 more source

Photosensitive Bandpass Filters

Optical Interference Coatings, 2007
First experimental demonstrations of the concept of photosensitive filters are reported. Possible application to the manufacturing of non absorbing apodizing filters is discussed.
Weidong Shen, Michel Cathelinaud, Michel Lequime, Cecile Aubert   +3 more
openaire   +1 more source

Bandpass filters: theory and experiment

Applied Optics, 1983
On a montre que des mailles inductives avec des ouvertures de forme cruciforme peuvent etre de bons filtres passe-bande dans l'infrarouge ...
R C, Compton, R C, McPhedran
openaire   +2 more sources

Far-infrared dichroic bandpass filters

Applied Optics, 1985
Filters which serve as dichroic beam dividers are useful for certain types of far-infrared photometer. We have used inductive cross metal mesh as reflective coatings on solid dielectric Fabry-Perot etalons to produce dichroic filters with quality factors in the range 3 < Q < 10.
D D, Nolte, A E, Lange, P L, Richards
openaire   +2 more sources