Results 81 to 90 of about 8,746,494 (343)

Essential Factor for Determining Optical Output of Phosphor-Converted LEDs

open access: yesIEEE Photonics Journal, 2014
An essential factor of the particle number is exploited for the phosphor excitation in phosphor-converted white LEDs. The particle number can clearly reveal the dependence of the light output flux and the correlated color temperature upon the ...
Tsung-Hsun Yang   +4 more
doaj   +1 more source

Frequency Analysis of a 64x64 Pixel Retinomorphic System with AER Output to Estimate the Limits to Apply onto Specific Mechanical Environment [PDF]

open access: yes, 2011
The rods and cones of a human retina are constantly sensing and transmitting the light in the form of spikes to the cortex of the brain in order to reproduce an image in the brain.
Jiménez Moreno, Gabriel   +5 more
core   +1 more source

Intensity output and effectiveness of light curing units in dental offices

open access: yesJournal of Clinical and Experimental Dentistry, 2018
Background The aims of the study were measuring the light intensity of light curing units used in Qazvin’s dental offices, determining the relationship between the clinical age of these units and their light intensity, and identifying the reasons for ...
B. Omidi   +3 more
semanticscholar   +1 more source

Paraneoplastic Lupus Nephritis in a Child With Neuroblastoma Recurrence

open access: yes
Pediatric Blood &Cancer, EarlyView.
Gabriele Mortari   +9 more
wiley   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Photoelectric detection system [PDF]

open access: yes, 1982
A photoelectric beam system for the detection of the arrival of an object at a discrete station wherein artificial light, natural light, or no light may be present is described.
Currie, J. R., Schansman, R. R.
core   +1 more source

Fiber amplification of radially and azimuthally polarized laser light [PDF]

open access: yes, 2010
The results on amplifying either radially or azimuthally polarized light with a fiber amplifier are presented. Experimental results reveal that more than 85% polarization purity can be retained at the output even with 40dB amplification, and that ...
Asher A. Friesem   +18 more
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Readout system for radiation detector [PDF]

open access: yes, 1968
Improved electrical circuit determines the amount of light detected by a photomultiplier tube when its output signal is in the dark-current range of the tube.
Baker, B. R., Cashion, K. D.
core   +1 more source

Engineering Gaussian states of light from a planar microcavity

open access: yes, 2018
Quantum fluids of light in a nonlinear planar microcavity can exhibit antibunched photon statistics at short distances due to repulsive polariton interactions.
Carusotto, Iacopo   +4 more
core   +2 more sources

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