Most proof systems for concurrent programs [Jon83] [O’H07] [VP07] assume the underlying memory model to be sequentially consistent(SC), an assumption which does not hold for modern multicore processors. These processors, for performance reasons, implement relaxed memory models. As a result of this relaxation a program, proved correct on the SC memory model, might execute incorrectly. To ensure ...

Florida Key deer mortality data (1966–2017) showed that about 75% of all reported mortalities were related to collisions with vehicles. In 2001–2002, the eastern section US Hwy 1 on Big Pine (Florida, USA) was mitigated a wildlife fence, 2 underpasses, and 4 guards. After mitigation, number road reduced substantially in section, but this negated by an increase along unmitigated Key, both absolu...

Equilibrium measurements of oxygen binding by 0 iron(II) and cobalt(II) picket fence porphyrins exhibit p^2, ΔΗ°, and AS° values close to those of myoglobin and cobalt myoglobin respectively. In contrast the CO affinities of simple iron(II) porphyrins are much greater than those of the hemoproteins, hemoglobin (Hb) and myoglobin (Mb). This difference is apparently caused by distal residues in H...

Migratory amphibians require movements to complete their biphasic life cycle, often across altered landscapes fragmented by roadways, which can have severe consequences on populations. To manage this threat, transportation agencies begun implement exclusion fencing separate natural areas from the roadway prevent wildlife-vehicle collisions. Although fences are an effective conservation tool, te...

Abstract We developed a snowdrift model to evaluate the height around snow fences, which are often installed along roads in snowy, windy locations. The consisted of conventional computational fluid dynamics solver that used lattice Boltzmann method and module for calculating particles’ motion accumulation. calculation domain was half channel with flat free-slip boundary on top non-slip bottom, ...

It occurs frequently in robotic applications that a robot manipulates a workpiece which is free to slide on a work surface. Because the pressure distribution supporting the workpiece on the work surface cannot in general be known, the motion of the workpiece cannot be calculated uniquely. Yet despite this indeterminacy, several researchers have shown that sliding motions can be employed to accu...

We give a sound and complete fence insertion procedure for concurrent finite-state programs running under the classical TSO memory model. This model allows “write to read” relaxation corresponding to the addition of an unbounded store buffer between each processor and the main memory. We introduce a novel machine model, called the Single-Buffer (SB) semantics, and show that the reachability pro...