The celebrated asynchronous computability theorem provides a characterization of the class of decision tasks that can be solved in a wait-free manner by asynchronous processes that communicate by writing and taking atomic snapshots of a shared memory. Several variations of the model have been proposed (immediate snapshots and iterated immediate snapshots), all equivalent for wait-free solution ...

Stacked Balloon Actuators In article number 2200085, Jacob Rogatinsky, Tommaso Ranzani, and co-workers introduce a class of soft actuators capable large deformations despite folding nearly flat when deflated, making them to adapt minimal space conditions without sacrificing the ability complete dexterous tasks. Such features make suitable operate in Complex environments, such as those found sur...

A disposable anaerobic system which is characterized by its light weight and its compactness is described. The system consists of a multilayer plastic bag with a unique sealing device. A collapsible impregnated cardboard container is fitted with a catalyst and holders for a disposable hydrogen generator and an anaerobic indicator. The catalyst is active at room temperature and requires no heat ...

Dispersive soils are one of the problematic such as swelling and collapsible they common in many countries world. Due to dispersive soils, significant problems arise road embankments earth dams. Therefore, use is possible with treatment. Silica fume (SF) a waste material has been used concrete production instead partially cement, stabilization expansive civil engineering applications for differ...