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The paper analysis the tracking, telemetry and command demands of aerospace vehicle missions. Then, the capacities of TDRS (the Tracking and Data Relay Satellite) to meet the needs are discussed. The merits of using relay satellites for the aerospace vehicles communication include the global coverage, broad band, supporting multi-objects at one time, the capacity of capturing and tracking high speed...
Frequency estimation plays a very important position in underwater noise monitoring. The estimation method based on complex modulation (ZOOMFFT) can estimate the frequency with a sufficiently specified high sampling frequency within a narrow-band frequency signal spectrum. In this paper, the complex modulation principle is described, and its effectivity in reducing workload and improving accuracy...
Along with the RFID technology unceasing development, information management systems based on RFID technology combining traditional industries, such as person and goods managements, could greatly improve the management of electronic, digital level. The Museum Access and Historical relic Manage System based on RFID Technology, can prompt and accurate the dynamic situation of cultural relics in each...
The biogas generator system put into practice has the deficiencies of poor stability, robustness and real-time, which has impacted the promotion and development of biogas power generation technology greatly. This paper designed a new monitoring model according to these deficiencies. This model established fault diagnosis subsystems according to the procedure of gas power generation, based on probability...
This paper predicts Net Carbon Emissions of Yunnan form 2007 to 2050 through energy consumption carbon emissions based on economic growth model and forest carbon sinks based on CO2FIX model. Further, we analyze the influencing factors of carbon emissions reduction and the contribution of forest carbon sinks to carbon emissions reduction, and then study low-carbon economy. The curves of energy consumption...
Surface deformation of goaf is a complex non-linear process, which has a hidden, complexity, and long-term features. Before building the life or service facilities in the goaf, we must have evaluated the stability and residual. In this paper, a new idea was put forward for stability analysis and evaluation of goaf by multi-scale decomposition using EMD(Empirical Mode Decomposition) method. Case study...
It has been agreed that the establishment of self-improving and self-restraint monitoring system for college teaching quality will effectively enhance the teaching quality which is one of the aims of teaching evaluation. The system includes quality standard, information collection and statistic analysis and measurement, evaluation, information reaction, adjustment, etc. Monitoring teaching quality...
Considering the requirement of safe early-warning for roof spatial latticed structure of Wuhan Natatorium, according to determined monitoring key rods and position of latticed structure by civil engineer through stress analysis, the strain gauges placement and general frame of safe early-warning system are designed in the paper. Measurement principle and modifying project of strain gauges are analyzed...
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