Quick-hardening infilling materials were developed in this study, which does not require the processes of cleaning the aggregates crushed due to the repeated load imposed by rolling stock, and thus the materials can strengthen existing ballasted tracks with an enhanced level of efficiency and speed.
Reaction was terminated by several rinses in PBS and the sections were mounted in an aqueous gelatin medium (aromatase) or in Eukitt® quick-hardening mounting medium (Sigma, vasotocin) and coverslipped.
The sections were dehydrated and mounted using Eukitt® quick-hardening mounting medium (Fluka, Industriestrasse, Buchs, Switzerland, cat. no. 03989).
The slides were subsequently washed several times, drained, dehydrated, and mounted with Eukitt® quick-hardening mounting medium and covered with coverslips.
Paraffin-treated sections of pancreas were stained for 1 hour in 0.1% picrosirius red solution (Direct Red 80, 365548, Sigma) in picric acid solution (P6744, Sigma), washed twice with acidified water, and then mounted in Eukitt quick-hardening mounting medium (03989, Sigma).
The velvet worm is predatory; it spits quick-hardening slime from projections (oral papillae) near the mouth to subdue invertebrates such as crickets, spiders, and wood lice.
Three-dimensional printers, which create objects by rapidly spraying thousands of layers of quick-hardening natural or synthetic materials into precise shapes, have fallen in price from several hundred thousand dollars a few years ago to $2,000 or less.
The developed quick-hardening mortar was applied to a 52 m-long existing ballasted track of an operating line, and structural stabilities under moving train loads were evaluated.
The use of quick-hardening materials possessing the ability to penetrate into the porous soil massif that raises strength characteristics of the hydraulic engineering construction is offered in this paper.
