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Slope failure in loess terrains of Northern China during spring thawing period is closely related to the freeze-thaw cycling that surface soils inevitably experienced. Field surveys were carried out on natural and artificial slopes in thirteen surveying sites located in the Northern Shaanxi, the center of Loess Plateau, covering five characteristic topographic features including tablelands, ridges,...
This work presents a highly integrated single chip multi-functional, multi-waveform signal generator which can generate various waveforms, with digital controller inside to adapt embedded and low power applications. The proposed system is composed by Nios II, DDS (Direct Digital Synthesis) and other peripherals. Nios II is a reconfigurable, programmable and optimizable soft-core embedded CPU. DDS...
This work presents an open-loop, fully differential capacitive MEMS accelerometer implemented in CMOS technology. The mathematical model of this open-loop system is derived, which considers non-ideal factors in circuits such as nonlinear distortion and noises. These non-ideal factors have been discussed through system level simulation using MATLAB. Simulation results show that the system has good...
The Coverage Model is constructed to meet the requirement that every point of the whole area is in the coverage of repeaters. The main algorithm is using small circles to cover the big circle with the rule that the distance between two circles' centers is not bigger than the radius of a repeater's coverage. To simplify the matter, we replace circles with particular regular hexagons, whose centers...
Ad Hoc network is recently a hot spot in wireless network researching domain. The design of routing algorithm, which is as the core layer technology in Ad Hoc networks, has drawn great concern. After analyzing the drawbacks of the existing algorithms, this paper puts forward a congestion control routing algorithm based on the node degree. This paper explains the principle of the node degree algorithm;...
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