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Journaling techniques play an important role in addressing the reliability issue of filesystems caused by the volatile DRAM-based buffer cache. However, journaling techniques introduce a large number of extra storage writes, which greatly degrades the performance of the filesystem [10]. Emerging Non-Volatile Memory (NVM) technologies bring a new perspective of solving the write amplification issue...
One kind of acid rain measuring method for large ancient sites in the field based on internet of things technology is researched and realized. The working principle of pH value detection is analyzed [1] and pH-value sensor conditioning circuits are constructed. Automatic temperature compensation of pH-value sensor and conditioning circuit are conducted using AVR control panel carrying a temperature...
Scandium (Sc) contacted n-type carbon nanotube (CNT) field-effected transistors (FETs) with back and top-gate structure have been fabricated, and their stability in air were investigated. It was shown that oxygen and water molecules may affect both the nanotube channel and Sc/nanotube contacts, leading to deteriorated contact quality and device performance. These negative effects associated with the...
Essential characteristics of foreign suppliers are identified that should be considered in the supplier selection process to control supply chain disruption risk in the manufacturerpsilas assembly operation. Since that the tangible and intangible characteristics are integrated in the supplier-ranking procedure and the multi-criteria evaluation system is introduced while the weight of each criteria...
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