Results 181 to 190 of about 23,176 (215)

Sensitive dLight for imaging broad-spectrum dopamine events across brain regions

open access: yes
Tian L   +36 more
europepmc   +1 more source

Fibre Optic Reflection Photometry on Blood

Cardiovascular Research, 1968
A two photocell assembly has been used to measure the light reflection of blood conducted by fibre optics. Fibre optic reflection spectra of oxygenated and reduced blood samples show an isobestic region around 850 nm. Non-specific variations of the light reflection from a mirror do not affect the ratio of detecting and compensating photocell outputs ...
G A, Mook   +3 more
openaire   +2 more sources

Saao standards for optical photometry

Astrophysics and Space Science, 1995
A review is given of the development of systems of photometric standard stars at the South African Astronomical Observatory. A brief historical perspective indicates how the Harvard E-regions were chosen as standard sequences and developed into a very precise Southern hemisphere system for UBV(RI) c photometry ...
D. Kilkenny, A. W. J. Cousins
openaire   +1 more source

Tapered Optical Fibers for Fluorescence Lifetime Photometry

Conference on Lasers and Electro-Optics, 2021
We describe a system exploiting a multi-anode array placed in the far-field plane of a tapered optical fiber to perform fluorescence lifetime photometry with depth-resolution in brain tissue.
Bianco M.   +9 more
openaire   +2 more sources

Optical photometry using Bradford robotic telescope

Astrophysics and Space Science, 2009
The Bradford Robotic Telescope (BRT) is located on Mount Teide at Tenerife and is working, taking observations since 2003. It is a fully automated telescope. The hardware and software used for the working of the telescope are described here. Twenty four BL Lac objects are observed since 2005 and magnitudes of the objects are calculated.
P. Seal Braun, J. E. F. Baruch
openaire   +1 more source

Optical photometry with the Kuiper Airborne Observatory

Publications of the Astronomical Society of the Pacific, 1983
The properties of optical photometric data obtainable with the 0.9-meter telescope of the Kuiper Airborne Observatory are described. The major differences between airborne and ground-based data are the absence of scintillation and the increased cosmic-ray background in the airborne data and the large size and vibration of the airborne images.
E. W. Dunham, J. L. Elliot
openaire   +1 more source

Home - About - Disclaimer - Privacy