نتایج جستجو برای: shovel
تعداد نتایج: 326 فیلتر نتایج به سال:
I t has been pointed out by Loeb 1 that our orientation in space is determined mainly by three groups of tropistic influences; namely, light, gravitation, and contact. Light and gravitation cause the orientation of organisms through effects upon muscle tonus. When the lines of force strike the animal obliquely, as for example, when light rays fall unequally on 1:he two eyes, the unequal stimula...
Carved turns with alpine skis are investigated. During the movement of a ski, snow is loaded and unloaded. Compacted snow is not elastic, i.e. deformations remain. Such effects are modeled by a hypoplastic constitutive equation. During a turn the shovel digs into the snow and the tail maintains nearly the same penetration depth as the part under maximum load. This results in a higher resistance...
Two-stage harvesting is the main method for performing mechanized of peanuts, and picking device a core part combined harvester in China. In order to solve problem pod loss caused by "stacking", "impact" "throwing up" peanut plants traditional cam-slide spring-finger cylinder device, shovel-finger peanut-picking was developed used picking-up performance test based on study peanut-plant strip-pi...
In this paper, the blasting parameters are designed based on drilling data of exploration geological stage, geophysical and mechanical mining area, age information, numerical simulation layered rock steps is carried out to optimize parameters. Multiple sets tests were on-site, large block rate, average size satisfaction cost shovel loading efficiency, effect rate set as evaluation indicators, w...
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