Does the advent of flash devices constitute a radical change for secondary storage? How should database systems adapt to this new form of secondary storage? Before we can answer these questions, we need to fully understand the performance characteristics of flash devices. More specifically, we want to establish what kind of IOs should be favored (or avoided) when designing algorithms and archit...

Abstract Contrast-enhanced multiphase liver CT is currently a standard of practice in hepatic imaging for medical diagnosis of liver diseases. We presented a novel image registration method for liver CT multiphase images. Firstly, a biomechanical model is proposed to describe the procedure of image registration, and expressed by an energy function. Then the numerical approximation of the energy...

A new parameterization of the lightning-produced NOx has been developed for cloud-resolving models. This parameterization is based on the unique characteristics of identifying which convective cells are capable of producing lightning based on a vertical velocity threshold and estimating the lightning flash rate in each convective cell from the non-precipitation and precipitation ice mass flux p...

Rich Internet Applications (RIA) require fast execution time and allow richer, faster, and more interactive experiences. Flash is a common technology for building RIAs. Flash programmers usually specialize in graphic design rather than programming. In addition, the tight schedule of projects makes the Flash programmers ignore non-functional characteristics such as the efficiency of their system...

The Solid State Disk (SSD) implemented using NAND flash memory significantly outperforms conventional rotating magnetic disk drive in read performance. However, write performance of flash based SSDs can be up to an order of magnitude slower than its read performance. This fundamental disparity is caused by the fact that flash write operations are immutable and a data sector must be erased befor...

Multiphase clocks are very useful for realizing high-speed data processing systems with low-speed circuit elements. Triggered in sequence by equally-spaced N-phase clock signals, multiphase systems can achieve N-times higher operating frequencies than single-phase clocked systems. For this reason, multiphase clocks are often used for such applications as high-speed analog-digital converters (AD...

Traditional descriptions of gas-particle partitioning of organic aerosols (OA) rely solely on thermodynamic properties (e.g., volatility). Under realistic conditions where phase partitioning is dynamic rather than static, the transformation of OA involves the interplay of multiphase partitioning with oxidative aging. A key challenge remains in quantifying the fundamental time scales for evapora...

Abstract. We apply the Piecewise Constant Level Set Method (PCLSM) to a multiphase motion problem, especially the pure mean curvature motion. We use one level set function to represent multiple regions, and by associating an energy functional which consists of surface tension (proportional to length), we formulate a variational approach for the mean curvature motion problem. Some operator-split...

Machining through turning was carried out in a lathe to study the chip formation of Multiphase Ferrite (F-B-M) microalloyed steel. Taguchi orthogonal array was employed to perform the machining. Continuous and discontinuous chips were formed for different cutting parameters like speed, feed and depth of cut. Optical and scanning electron microscope was employed to identify the chip morphology. ...

This paper describes the usability of the vector-based animation program Macromedia Flash for presentations. After short overviews of common presentation techniques, advantages and disadvantages, useful features of Flash are described in detail. The function and performance of Flash for interactive e-learning applications is then presented, demonstrating the advantage of rich client technology ...