A better way to measure light pollution level

"Leading the era of science and technology, advancing with The Times." However, the ever-increasing artificial light sources, while meeting the needs of lighting and decoration, are also causing new sources of environmental pollution because they are being used excessively or improperly.The increasing use of artificial light HERBATINT 5R sources ha

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ACTIVE GAS SAVING CONDITIONS AND PROSPECTS

Uneconomical use of Bike Parts - Frame Parts natural gas in Russia results from certain causes.Gas is supplied on the basis of special norms, while gas payment rules are governed by documents based on other principles.Actual savings in gas are not stimulated.Interests of the parties participating in gas extraction, transportation, delivery and cons

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Effects of climate on dental mesowear of extant koalas and two broadly distributed kangaroos throughout their geographic range.

Dental mesowear analysis can classify the diets of extant herbivores into general categories such as grazers, mixed-feeders, and browsers by using the gross wear patterns found on individual teeth.This wear presumably results from both abrasion (food-on-tooth wear) and attrition (tooth-on-tooth wear) of individual teeth.Mesowear analyses on extinct

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PASAT: pathfinder in solar adaptive telescope

In the forefront of quantitative solar physics research using large-aperture ground-based solar optical telescopes, high-contrast observation along with high-accuracy polarimetric measurement in the solar active region are required.In this paper, we propose a novel high-contrast imaging telescope construction with a 60 cm medium aperture, namely, B

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