INTRODUCTION Artificial joints have been increasingly used in treatment of physically disabled people who have severely damaged joints. In artificial joint, ultra high molecular weight polyethylene (UHMWPE) has been usually employed as a buffer because of its very low friction coefficient, high wear resistance, high impact strength, and biocompatibility. [1]. When artificial joints were replace...

Intel’s Teraflops(TFLOPS) machine is the first ASCI machine that DOE is acquiring. This computer will be 10 times more powerful than the fastest machine today, and will be used primarily to simulate nuclear testing and to ensure the safety and effectiveness of the nation's nuclear weapons stockpile. This machine will contain over 9000 Intel’s Pentium® Pro processors and will provide a peak cpu ...

Practitioners of computer music often need to store sound as sampled digital data on their computer's hard disks, digital audio tapes (DATs), or compact disks (CDs). The data formats used to represent digitally sampled sound determine the audio quality of the sound capture, the amount of disk or tape needed to store the data, and the ease with which application programs can be developed to mani...

In the fault diagnosis of automaton, the vibration signal presents non-stationary and non-periodic, which make it difficult to extract the fault features. To solve this problem, an automaton fault diagnosis method based on morphological component analysis (MCA) and ensemble empirical mode decomposition (EEMD) was proposed. Based on the advantages of the morphological component analysis method i...

In the fault diagnosis of automaton, the vibration signal presents non-stationary and non-periodic, which make it difficult to extract the fault features. To solve this problem, an automaton fault diagnosis method based on morphological component analysis (MCA) and ensemble empirical mode decomposition (EEMD) was proposed. Based on the advantages of the morphological component analysis method i...

Compiler support for power and energy management has been shown to be effective in reducing overall power dissipation and energy consumption of individual programs, for instance through compilerdirected resource hibernation and dynamic frequency and voltage scaling (DVS). Typically, optimizing compilers perform intra-program analyses and optimizations, i.e., optimize the input program without t...

Time-dependent, axisymmetric hydrodynamic simulations have been used to study accretion disks consisting of counterrotating components with an intervening shear layer(s). Configurations of this type can arise from the accretion of newly supplied counterrotating matter onto an existing corotating disk. The grid-dependent numerical viscosity of our hydro code is used to simulate the influence of ...

We present the first high angular resolution 1.4mm and 2.7mm continuum maps of the TTauri binary system HKTau obtained with the Plateau de Bure Interferometer. The contributions of both components are well disentangled at 1.4mm and the star previously known to host an edge-on circumstellar disk, HKTauB, is elongated along the disk’s major axis. The optically bright primary dominates the thermal...

It is challenging to simultaneously achieve multicore scalability and high disk throughput in a file system. For example, data structures that are on separate cache lines in memory (e.g., directory entries) are grouped together in a transaction log when the file system writes them to disk. This grouping results in cache line conflicts, thereby limiting scalability. McoreFS is a novel file syste...