Despite the increases in disk capacity and decreases in mechanical delays in recent years, the performance gap between magnetic disks and CPU continues to increase. To improve disk performance, operating systems and file systems must have detailed low-level information (e.g., zoning, bad-sector positions, and cache size) and high-level information (e.g. expected read and write performance for d...

The development of the Parallel ROOT Facility, PROOF, enables a physicist to analyze and understand much larger data sets on a shorter time scale. It makes use of the inherent parallelism in event data and implements an architecture that optimizes I/O and CPU utilization in heterogeneous clusters with distributed storage. The system provides transparent and interactive access to gigabytes today...

the aim of this study is to investigate the role and structure of motivation in learning a foreign language in order to introduce the model ofinformation processing as a new approach and scale to evaluate themotivation of foreign languages.for this purpose,two hundred and fifty participant employees ofthe iranian oil terminals company enrolled in the english language training courses were selec...

Wireless sensor network applications require tiny sized sensors with short transmission communication or signaling range which reduce the chances of detection. These size constraints cause limitations on CPU speed, amount of memory, RF bandwidth and battery lifetime. And therefore, efficient communication techniques are essential for increasing the lifetime and quality of data collection and de...

Baseline event building and Level 3 trigger processing at the CDF experiment at Fermilab is speciied to process about 300 events/s with an average event size of about 150 KB. First, the event must be assembled from fragments originating from approximately 16 readout sources, with individual average fragment sizes ranging from 12 to 16 KB. Then the Level 3 processor-based trigger performs recons...

We investigate cache write generate, our cache mode invention. We demonstrate that for parallel image processing applications, the new mode improves main memory bandwidth, CPU efficiency, cache hits, and cache latency. We use register level simulations validated by the UW-Proteus system. Many memory, cache, and processor configurations are evaluated.

multiple sclerosis (ms) is a chronic disease of central nervous system. the multiple sclerosis information system (msis), such as other information system (is), depends on identification, collection and processing of data for producing useful information. lack of the integrated is for collecting standard data causes undesirable effects on exchanging, comparing, and managing. the aim of this stu...

iran’s registration office which was established with the aim of registering four major life events (birth, death, marriage and divorce) made it clear that it was essential to gather the information on the country’s population and establish an agency in charge of gathering and producing statistics. consequently in 1924 a rule was passed in six articles whereby interior ministry became in charge...