资讯

World's Strongest bio-material outperforms steel and spider silk Novel method transfers superior nanoscale mechanics to macroscopic fibers Date: May 16, 2018 Source: Deutsches Elektronen ...
Unrestrained spider dragline 'super-contracts' when it is wetted, causing its length to shrink by about half and its diameter to almost double1,2. Here we measure the supercontraction stresses ...
In March, H&E wrapped up the complete remanufacturing of a Manitowoc 4600 dragline crawler for Chicago, Illinois-based United States Gypsum Company, subsidiary of USG.
Luminant's D-32 dragline, a 13-million-pound earthmoving machine, is one of four draglines the company recently moved from its other mine locations using a specialized 1,000-wheel vehicle. This ...
COMPUTING DRAGLINE EXCAVATION SEQUENCES – THE SEQUENCING ALGORITHM COMPUTES THE WALK-UP SEQUENCE TO EXCAVATE A BLOCK BY USING MODELS OF DRAGLINE GEOMETRY, PERFORMANCE AND TERRAIN INTERACTION TO: ...
Jumping spiders use their dragline of silk to stabilise themselves mid-air and land of their feet ready to pounce, say scientists.
The super-size dragline at BMA’s Peak Downs mine site is nearing completion with construction expected to finish early next year. Bucyrus has been contracted to build the 8750 dragline model ...
Sep. 30—SCAMMON, Kan. — A walking dragline idled in Cherokee County for decades is one step closer to becoming a roadside attraction in Southeast Kansas. Workers with Tilton and Sons House ...
A BMA spokesman said no one was injured. “On September 15 a dozer operator stopped positioning a spare dragline bucket after it unexpectedly moved,” the BMA spokesman said.