منابع مشابه
Are non-slip socks really 'non-slip'? An analysis of slip resistance
BACKGROUND Non-slip socks have been suggested as a means of preventing accidental falls due to slips. This study compared the relative slip resistance of commercially available non-slip socks with other foot conditions, namely bare feet, compression stockings and conventional socks, in order to determine any traction benefit. METHODS Phase one involved slip resistance testing of two commercia...
متن کاملErrata Slip
We thank our anonymous reviewers for their helpful feedback. This research was supported by the NSF under award DGE-1500084, CNS-1563848, CRI-1629851, CNS-1017265, CNS-0831300, and CNS-1149051, ONR under grant N000140911042 and N000141512162, DHS under contract No. N66001-12-C-0133, United States Air Force under contract No. FA865010-C-7025, DARPA under contract No. DARPA FA8650-15-C-7556, and ...
متن کاملHow to distinguish between stick-slip and pure slip oscillations
Numerical simulations are performed for the stick-slip motion in the BurridgeKnopoff model of one block. Calculated amplitude increases with the driving velocity. We argue that this effect can be a criterion to distinguish between the stick-slip and pure slip oscillations. PACS : 62.20.Qp, 05.45.-a, 02.60.-x
متن کامل{110} Slip with {112} slip traces in bcc Tungsten
While propagation of dislocations in body centered cubic metals at low temperature is understood in terms of elementary steps on {110} planes, slip traces correspond often with other crystallographic or non-crystallographic planes. In the past, characterization of slip was limited to post-mortem electron microscopy and slip trace analysis on the sample surface. Here with in-situ Laue diffractio...
متن کامل"Walking-mode maps" based on slip/non-slip criteria.
"Walking-Mode Maps", based on Slip/Non-Slip criteria, are proposed. Slip/Non-Slip criteria are expressed as follows: for a slip to occur: |F(h)/F(n)|(h) > or = mu(s) or |F(h)/F(n)|(t) > or = mu(s); for no slip to occur: |F(h)/F(n)|(h) < mu(s) or |F(h)/F(n)|(t) < mu(s). |F(h)/F(n)|(h) and |F(h)/F(n)|(t) are the maximum peak value of the traction coefficient at heel-strike and toe-off respectivel...
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ژورنال
عنوان ژورنال: Nature
سال: 1981
ISSN: 0028-0836
DOI: 10.1038/294510a0