Background.Rare earth element (REE) composition of atmospheric dust has recently been used to trace potential sources of dust pollution.Objective.The present study aimed to determine the sources of atmospheric pollution in the study area using REE patterns and determine their level of pollution.Methods.Twenty-five (25) atmospheric dust samples were
The occurrence of high-pressure and ultrahigh-pressure eclogites in the northern border of Qaidam basin in central China indicates the existence of a 350 km orogenic belt.These eclogites provide constraints click here for reconstructing the tectonic evolution history in this region.In this study, we analyzed nine eclogites sampled from the Xitiesha
The article presents the theoretical bases of interaction with mounds of peat bases.New constructions of forest roads of mobile auto-containing layers of geosynthetic materials and de-roaring elements, for use in the grounds with low bearing capacity.The calculation and conducted in here accordance with the testing procedures on the test bench bush
Mini-light-emitting diodes (mini-LEDs) were combined with multiple three-dimensional (3D) diffuse reflection cavity arrays (DRCAs) to produce thin, large-area, high-brightness, flat light source modules.The curvature of the 3D free-form DRCA was optimized to control its light path; this increased the distance between light sources and reduced the n
Automatic extraction of buildings from remote sensing imagery plays a significant role in many applications, such as urban planning and monitoring changes to land cover.Various building segmentation methods have been proposed for visible remote sensing images, especially state-of-the-art methods based on convolutional neural networks (CNNs).However