SLOTTED SHELL RESILIENT ELEMENTS FOR DRILLING SHOCK ABSORBERS

Slotted shell resilient elements for drilling shock absorbers

The new design of a resilient element for application in drilling devices of vibration protection is presented.A cylindrical shell with a cut along its generatrix is the peculiarity of the proposed design.The presented resilient element has high loaded and damping properties upon cross dimension hard restriction condition.Besides, the design is sim

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Genotypic and phenotypic diversity does not affect productivity and drought response in competitive stands of Trifolium repens

Clonal plants can form dense canopies in which plants of different genetic origin are competing for the uptake of essential resources.The competitive relationships among these clones are likely to be affected by extreme environmental conditions, such as prolonged drought spells, which are predicted to occur more frequently due to global climate cha

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