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Alpha particles incident on CMOS integrated circuits deposit charges on circuit nodes resulting in single-event transients (SETs). These transient errors propagate through the circuit and reach a latch where they may get latched under proper conditions. This paper presents circuit design techniques to remove the effects of such SET pulses from the circuit. An optimized design is developed whose area, power, and speed performance is superior to other design methods for SET mitigation. Simulation results showing SET pulse elimination are presented. 相似文献
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Sujittra Daengsakul Chunpen Thomas Ian Thomas Charusporn Mongkolkachit Sineenat Siri Vittaya Amornkitbamrung Santi Maensiri 《Nanoscale research letters》2009,4(8):839-845
This study reports the magnetic and cytotoxicity properties of magnetic nanoparticles of La1−x
Sr
x
MnO3 (LSMO) with x = 0, 0.1, 0.2, 0.3, 0.4, and 0.5 by a simple thermal decomposition method by using acetate salts of La, Sr, and Mn as starting
materials in aqueous solution. To obtain the LSMO nanoparticles, thermal decomposition of the precursor was carried out at
the temperatures of 600, 700, 800, and 900 °C for 6 h. The synthesized LSMO nanoparticles were characterized by XRD, FT-IR,
TEM, and SEM. Structural characterization shows that the prepared particles consist of two phases of LaMnO3 (LMO) and LSMO with crystallite sizes ranging from 20 nm to 87 nm. All the prepared samples have a perovskite structure with
transformation from cubic to rhombohedral at thermal decomposition temperature higher than 900 °C in LSMO samples of x ≤ 0.3. Basic magnetic characteristics such as saturated magnetization (M
S) and coercive field (H
C) were evaluated by vibrating sample magnetometry at room temperature (20 °C). The samples show paramagnetic behavior for
all the samples with x = 0 or LMO, and a superparamagnetic behavior for the other samples having M
S values of ~20–47 emu/g and the H
C values of ~10–40 Oe, depending on the crystallite size and thermal decomposition temperature. Cytotoxicity of the synthesized
LSMO nanoparticles was also evaluated with NIH 3T3 cells and the result shows that the synthesized nanoparticles were not
toxic to the cells as determined from cell viability in response to the liquid extract of LSMO nanoparticles. 相似文献
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