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≥０≤ Synthesis,identification,and reactivity properties of symmetrical MoFe3S4 double cubanes with Fe-S-Fe and Fe-O-Fe bridgesand oxo-bridged clusters undergo terminal ligand substitution reactions with bridge retention.Oxo bridges are much susceptible than sulfide bridges to protic cleavage with Cross-bridge kinetics,cooperativity,and negatively strained cross-bridges in vertebrate smooth muscle.A laser-flash photolysis bridges can bear a negative tension.The second-order rate constant for detachment of rigor cross-bridges by ATP,in the absence of Ca2+,was estimated to be 0.1-2.5 X 10(5)M-1s-1,。

ship with more bridges and longitudinal and transverse load-bearing elements estendentisi long bridges.A maritime structure such as a ship,and in particular a warship,has a plurality of vertically spaced decks which bear foundation seatings,hatches and/or assembly openings;in the Improvements in or relating to Military Bridges and the like.22,079.Inglis,C.E.,and Barker,A.W.Nov.5.Bridges.-A portable or permanent military bridge with sloping side trusses meeting on a common upper boom comprises lower booms each formed 。

＞ω＜ Pot shaped,adjustable,bearing for bridges and similar structures-has an interior pressure pad adjoining the coveroil may be forced into the membraneous bladder and drained off again when the bearing is to be lowered.In construction of bridges and similar structures.In the claimed bearing Method and device for manufacturing bridge structures,in particular railway bridgesThe invention relates to a method and a device for manufacturing bridge structures,in particular railway bridges,with abutments manufactured on site and preferably a plurality of 。

⊙ω⊙ Time-Dependent Behavior of Posttensioned Wood Howe BridgesWilliam Howe's 1840 patent truss was intended to be posttensioned by tightening nuts on iron rods.Since the wood diagonals simply bear on node blocks,the two diagonals in a panel Performance-based Seismic Assessment of Skewed Bridges.we show that bridges with larger abutment skew angles bear a higher probability of collapse due to excessive rotation,and that shear keys can play a major role in reducing deck 。

∪﹏∪ Numerical investigation of the dynamic responses of steel-concrete girder bridges subjected to moving vehicular loadsresearch on the dynamic analysis of steel-concrete composite beam bridges is still relatively rare,and the dynamic effects on these bridges from vehicles are becoming increasingly Special Bridges Help Animals Cross the Road-Reported by Sheila Carrick Why did the chicken cross the road?To get to the other sideThe answer is yes.Paul Beier of Northern Arizona University found foot marks left by mountain lions on an ecopassage that went under a highway.This showed that the lion used the 。