in this research was designed a differential lock control system. the system was test and evaluated after fabrication and its accuracy and precision was determined. a field experiment with three replications was conducted to investigate the effect of gear ratio, the method of tractor movement during plowing and differential position on drive wheel slippage and fuel consumption of mf399 tractor ...

ing locking in terms of fast and slow methods of lock acquisition, where the slow method requires communication between threads on wait queues, is similar to the approach described by Agesen [1]. The list built by the unlocking processor is called the HANDOFF-list and the process of signalling each processor in turn is called the HANDOFF-protocol. Each processor woken during the HANDOFF-protoco...

Commercial workloads such as databases and web servers are the dominant applications running on shared-memory multiprocessors. These multithreaded programs use synchronization mechanisms (often locks) to ensure serialized access of shared data, leading to a potential performance bottleneck. Speculative Lock Elision (SLE) [2] technique has demonstrated that hardware optimization can remove many ...

Locking of central venous catheters with heparin is an accepted practice to maintain catheter patency between dialysis sessions. However, this practice may cause other adverse reactions. Although many studies suggest benefits of other catheter lock solutions over heparin on these grounds, no consensus has been reached for clinical practice. A systematic review and meta-analysis was performed of...

We analyze the periodically forced Kuramoto model. This system consists of an infinite population of phase oscillators with random intrinsic frequencies, global sinusoidal coupling, and external sinusoidal forcing. It represents an idealization of many phenomena in physics, chemistry, and biology in which mutual synchronization competes with forced synchronization. In other words, the oscillato...

Numerical simulations of the interaction between a circular cylinder and its wake during both forced and free, vortex-induced, oscillation have been performed using a spectral element method in which the computational mesh was fixed to the cylinder and the Navier-Stokes equations solved in this accelerating reference frame. Thus far, work has focussed on cross flow, rather than in-line oscillat...