This paper evaluates the capability of saliency tracking to assess the health condition of permanent magnet synchronous motor (PMSM) drives operating under nonstationary conditions. The evaluated scheme is based on saliency tracking methods, which are associated to the accurate sensorless control of AC drives without zero speed limitations. In this work two representative saliency tracking arch...

[1] The evolution of bubbles in a turbulent oceanic boundary layer is simulated using a multi-size multi-gas bubble model coupled with a Large Eddy Simulation model. Bubbles injected by breaking waves are brought into the boundary layer by episodic bubble plumes, and they form near-surface streaks in the convergence zone of Langmuir circulations. The equilibrium bubble distribution decays expon...

This paper describes our efforts to characterize application sensitivity to link and injection bandwidth on a Cray XT4 system. Link bandwidth is controlled by modifying the number of rails activated per network link. Injection bandwidth is controlled by modifying the speed of the HyperTransport connection between the Opteron and the SeaStar. A suite of micro-benchmarks and applications is evalu...

Designers of safety-critical VLSI systems are asking for effective tools for evaluating and validating their designs. Fault Injection is commonly adopted for this task, and its effectiveness is therefore a key factor. In this paper we propose to exploit FPGAs to speed-up Fault Injection for fault tolerance evaluation of VLSI circuits. A complete Fault Injection environment is described, relying...

The memory wall [13], the continuing disparity between processor and memory speeds, adversely affects the performance of many applications [8], particularly data intensive computations [11]. Cache injection addresses this disparity by placing incoming network data into a processor’s cache directly from the I/O bus. The effectiveness of this technique on application performance is dependent on s...

Multislice spiral CT is a perfect imaging modality to evaluate large area in a short time and visualize lesion optimally with an injection of contrast media (c/m). Scanning may include unenhanced images (without c/m), arterial, portal venous and delayed phases. The speed of contrast injection and optimal scanning protocol are crucial to separate all phases, what is very important in differentia...

Methods Nineteen able-bodied subjects walked four different conditions (control, effusion, pain, and pain+effusion), with a week between each condition. We used previouslyused injury models of pain [1] and joint effusion [2] to the right side of the knee. The control condition consisted of no injection. For each condition, subjects completed three walking trials at three times: precondition (pr...