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In recent years, very high resolution spectrographs on the world's most powerful telescopes have been used to observe and analyse DIBs. [10] Spectral resolutions of 0.005 nm are now routine using instruments at observatories such as the European Southern Observatory at Cerro Paranal, Chile, and the Anglo-Australian Observatory in Australia, and ...
SpectraLayers Pro 10 was released in June 2023, [18] with new unmixing functionality and improved speech recognition. SpectraLayers Pro 11 was released in June 2024, [ 19 ] improving and adding new AI modules for unmixing and restoration, modules chaining, batch processing, new selection and editing tools and volume enveloppes.
The eruption of the Philippines volcano - Mount Pinatubo in June 1991 ejected roughly 10 km 3 (2.4 cu mi) of magma and "17 million metric tons"(17 teragrams) of sulfur dioxide SO 2 into the air, introducing ten times as much total SO 2 as the 1991 Kuwaiti fires, [8] mostly during the explosive Plinian/Ultra-Plinian event of June 15, 1991 ...
Nano-sized point contacts on Al 2 O 3 layer [52] and line contacts on SiO2 layer [53] provide the electrical connection of CIGS absorber to the rear electrode Molybdenum. The point contacts on the Al 2 O 3 layer are created by e-beam lithography and the line contacts on the SiO 2 layer are created using photolithography .
An equivalent melanopic lux of 250 must be maintained in the period of the day between the indicated wake time and two hours before the indicated bed time. An equivalent melanopic lux of 50 or less is required for the period of the day spanning from two hours before the indicated bed time through the wake time.
Multispectral imaging combines two to five spectral imaging bands of relatively large bandwidth into a single optical system. A multispectral system usually provides a combination of visible (0.4 to 0.7 µm), near infrared (NIR; 0.7 to 1 µm), short-wave infrared (SWIR; 1 to 1.7 µm), mid-wave infrared (MWIR; 3.5 to 5 µm) or long-wave infrared ...
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The western twilight sky after sunset, during the blue hour (around nautical dusk).The deep-blue color of the upper portion is attributable to Chappuis absorption. Chappuis absorption (French:) refers to the absorption of electromagnetic radiation by ozone, which is especially noticeable in the ozone layer, which absorbs a small part of sunlight in the visible portion of the electromagnetic ...