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The development of matrix completion theory provides new approaches for data gathering in Wireless Sensor Networks (WSN). The existing matrix completion algorithms for WSN mainly consider how to reduce the sampling number without considering the real-time performance when recovering the data matrix. In order to guarantee the recovery accuracy and reduce the recovery time consumed simultaneously, we...
According to the distribution of faults in coal face, deep-hole loose blasting scheme is formulated and vibration monitoring is conducted. Obtained seismic wave attenuation rule of deep-hole loose blasting, HHT method is adopted for vibration signal decomposition to research the characteristic of spectrum and the energy distribution of the signal. Research results show that seismic wave propagation...
The resistance to bismerthiazol in the Xanthomonas oryzae pv. oryzae population in China has not been clearly determined. Three bismerthiazol-resistant mutants (1-1-1, 2-1-1, 4-1-1) of X. oryzae pv. oryzae were induced on rice plants and the characteristics were compared with their parental strain ZJ173. After 10 subcultures on fresh bismerthiazol-free nutrient agar plates and after being inoculation...
High voltage bushing is a key electric accessory. A new methodology on monitoring bushing insulation defect is put forward in this paper according to existing problems of bushing insulation defects monitoring. This methodology uses the bushing transient voltage and current (from normal operating system or other faults caused) as information source, acquires the monitoring and diagnostic discriminant...
According to field condition, blasting vibration of medium deep-hole blasting in deep rock entry were tested for study the influence of entry by blasting vibration in coalmine, attenuation coefficient α of earthquake wave and equation coefficient k are acquire by regression and analysis on point vibration peak velocity and acceleration of tested results, then summarizes propagation laws of blasting...
Based on the CBERS (CBERS-02) remote sensing image, selecting the non-sewage irrigation area and sewage effluent irrigation areas as the experimental areas, which are located in the south of Laizhou Bay in the time of drought. In these areas, soil moisture was calculated, and different amount of filed irrigation was determined. Compare the normalized vegetation index (NDVI) of sewage irrigation areas...
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