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cutoff angle

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Welcome to the New Jersey Astronomical Association
Cut Off Light Fixture - A light fixture with cutoff optics that allows no direct light emissions above a vertical cutoff angle of 80 degrees above nadir (straight down at perfect vertical ... height is 16 feet or less. Any structural part of the light fixture providing this cutoff angle must be permanently affixed. Sky Glow - Luminance in the atmosphere caused by dust, water vapor ...
njaa.org


BYU MERS SeaWinds/QuikScat Sigma-0 Browse Product FAQ
The polar stereographic views include only measurements above a high latitude cutoff of 52 deg. One set of image products is produced per mission Julian day. For ... averaged. The resulting average is over the various azimuth angles of the measurements. The azimuth angle sampling varies with pixel location and the Julian day and may be affected by missing ...
www.scp.byu.edu


Shallow Excavations—Small Site
Depth Small Site Ground Freezing For Shoring And Groundwater Cutoff Shallow Excavations Shallow Excavations—Large Site Deep Excavations Tunneling Groundwater Cutoff Wall Can be designed to completely cut off groundwater into the excavation without a natural aquitard. Batter freeze pipe can be installed at any angle to ...
www.cryocell.com


Solar X-Ray Imager
EPS provides a spin-averaged estimate of the local high-pitch-angle particle fluxes. The integral electron channel is given in units of count/cm2 sec sr ... . The P2 channel may occasionally respond to trapped particles during magnetically disturbed conditions. The geomagnetic cutoff at geostationary orbit is typically of the order of a few MeV as indicated by ...
www.ngdc.noaa.gov


Homesteading - Solar Oven
So a metal shelf was designed to fit the ... spots for rain to get inside. It was cut to size using a cutoff wheel to keep it from wrinkling and buckling as shears might do, ... a lot to do with how well your oven works. Considerations here are angle, shape, reflectivity, and size. These tend to be the most difficult part ...
manytracks.com


NGDC/WDC STP, Boulder-Cosmic Rays
Neutron monitors at high altitudes have higher counting rates than neutron monitors at ... instruments: Neutron Monitors and Supermonitors Ionization Chambers Muon Telescope (cubical, crossed, narrow angle and wide angle) Aircraft and Ship Measurements Satellite Observations Most of the data held by ...
www.ngdc.noaa.gov