In order to improve the removal ability of nitrogen and phosphorus pollutants from sewage with low C/N ratio, this study prepared glucose polymer-based pyrite tailings core-shell structure through polymerizing on surface particles constructed a heterotrophic-sulfur autotrophic mixed-denitrification system. The experimental results show that compared ordinary tailings, modified by polymer can wa...

In three-dimensional (3-D) cluttered scenes such as foliage, deeper surfaces often are more shadowed and hence darker, and so depth and luminance often have negative covariance. We examined whether the sign of depth-luminance covariance plays a role in depth perception in 3-D clutter. We compared scenes rendered with negative and positive depth-luminance covariance where positive covariance mea...

A data depth is one of the most important concepts of nonparametric multivariate analysis. Several depth functions have been introduced since 1980. The halfspace depth is probably the most popular. This depth function has many desirable properties (they are stated in the general definition of statictical depth function). We show a way of generalization of the halfspace depth finding a broader c...

This paper studies single-image depth perception in the wild, i.e., recovering depth from a single image taken in unconstrained settings. We introduce a new dataset “Depth in the Wild” consisting of images in the wild annotated with relative depth between pairs of random points. We also propose a new algorithm that learns to estimate metric depth using annotations of relative depth. Compared to...

A catadioptric stereo system has been developed for depth perception. The system uses two sets of planar mirrors to create two virtual cameras. A design procedure is presented with the aim of building a compact assembly. This has resulted in an inexpensive and compact system that achieves a depth resolution of 5.8 cm at a working distance of 2 m.

With the development of an ecological civilization gaining increasing attention in our country, analysis environmental and economic impacts all aspects life has been developed gradually. However, because study on benefits tailwater diversion project is a weak link, discussion novel. The variable fuzzy evaluation model used to evaluate comprehensive engineering, order facilitate exploration appl...