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rapid sand
We provide excellent tracking results on various complex sequences, using both stabilized and moving cameras, showing a busy ant column, waterfalls, rapids and flowing streams, shoppers in a mall, and cars in a traffic intersection.
      
The two environmental factors that constrain reproduction, rapid sand desiccation rate and food scarcity, are countered by biparental effort.
      
Combined with rapid prototyping (RP) technology, the laser sintering of the silica sand can be used to directly fabricate a sand casting mould, called a rapid sand casting mould.
      
By avoiding the time-consuming process of fabricating a pattern, the rapid sand casting mould process has the potential of further reducing the lead time for producing a casting product.
      
The role of microbial consortia on the removal of manganese (Mn) was examined on sand from three different Belgian rapid sand filters for the treatment of ground water.
      
Upon start-up of a rapid sand filter fed with groundwater containing Mn2+ and NH4+, the first to be removed was NH4+, which was oxidized to NO2-.
      
oxidizers is critical in the removal of Mn2+ in rapid sand filters.
      
At three of four drinking water production plants tested, rapid sand filtration decreased the number of aeromonads and hygienic indicator organisms.
      
The largely tropical Podostemaceae occur in a unique habitat for angiosperms: attached to rocks in river rapids and waterfalls.
      
The Luongo River has high gradient upper and lower sections, separated by a long middle section of no gradients, and bordered by rapids and waterfalls.
      
Grand Rapids and yet bore little morphological resemblance to this cultivar were readily recovered.
      
`Grand Rapids' and a few other cultivars are reported to be resistant to this nematode.
      
F1(Regina-71 × Grand Rapids) and F2 seed were obtained, and inoculated along with the parental cultivars with different races of M.
      
Comparative genetic analysis of field resistance to downy mildew in the lettuce cultivars 'Grand Rapids' and 'Iceberg'
      
The responses of Grand Rapids and Iceberg were similar in many respects.
      
Similar segregation of FR was observed in F2 populations for both Grand Rapids and Iceberg.
      
Additional hindrances to upstream migration were found at rapids and the area of the fish ladder, located further upstream in the regulated river section.
      
After chemical treatment in a reactor clarifier, the effluent passes through a rapid sand filter for polishing and then into a storage reservoir.
      
After it crosses the border between Angola and Namibia the flow accelerates and for 30 km it runs through ravines and over rapids and waterfalls.
      
A proportion of this treated stormwater then flows to an underground rapid sand filter for further treatment.
      
 

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