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The Internet of Things (IoT) enables the connections of billions of devices to the Internet. It is thus very important to effectively manage this huge amount of devices. Among many available device management protocols, Open Mobile Alliance Lightweight M2M (OMA LWM2M) has been adopted by the global M2M standards, ETSI M2M and oneM2M as the standard for device management. However, OMA LWM2M-supported...
The complete and reliable field traffic data are vital for the planning, design and operation of urban traffic management systems. However, the problem of traffic data missing widely exists in many traffic information systems, which brings great troubles to the further utilization. Some approaches for imputing missing traffic data are needed, therefore, to minimize the effect of incomplete data on...
For metal-gate high-k dielectrics, there is a transition region in the electron gate tunneling current I_g, as characterized by a plot of dlnI_g/dV_g versus V_g. In this paper, we systematically construct a new fitting over the region, which can accurately determine material parameters, including metal work function, high- k electron affinity, and tunneling effective masses of electrons. First of...
By means of the TEM images, the channel width of (001) silicon pMOSFETs is separated into the flat and rounded corner parts. The underlying stress distribution is obtained via a process simulation. Then, a systematic analysis of the measured drain current leads to a remarkable result: The hole mobility in the non-(001) corner is about two times higher than the (001) flat one, valid for all channel...
The abrasive wear behavior of high velocity oxy-fuel (HVOF) sprayed Cr3C2-25%NiCr coatings deposited in different conditions was investigated by wet sand rubber wheel abrasive wear tester using three kinds of abrasives (brown alumina, Jin Gang sand and Hu Kou sand). The abrasive wear mechanism was discussed. The results show that weight loss of HVOF sprayed Cr3C2-25% NiCr coating after worn with three...
A nanostuctured Fe-Al/WC intermetallic compound-based coating was produced by cold spraying of ball-milled powder assisted with post-annealing treatment. The microstructure of the as-milled powder and cold-sprayed coating was investigated. It was found that the as-milled Fe-Al/WC composite alloy powder had lamellar structure and the microstructure of the as-sprayed coating depended significantly on...
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