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This paper designs a single rotatable dual-polarized antenna polarimetric active radar calibrator (PARC) and proposes a corresponding dynamic calibration polarimetric (DPC) method. The novel PARC simplifies the system equipment and optimises the antenna's pattern. By modulating the time-delay of the retransmitted signal of the PARC, the polarimetric radar is calibrated with the DPC method. The simulations...
The effects of working fluid on cycle efficiency are analyzed in an Organic Rankine Cycle using energy and exergy method. A total of 14 fluids were chosen based on their environmental and safety properties; their efficiencies are compared using a reasonably simplified model. Overheating at the evaporator outlet was studied theoretically and numerically and was proved to be one of the most important...
A kind of ECG monitoring system, which can monitor ECG all the time and can give an alarm when the abnormal ECG signals are found, is described in this paper. The system is designed using S3C2410X and GPRS, and its software is designed based on Linux. The system can monitor the patient's ECG all the time. When the abnormal ECG signals are found, the system will send the short message automatically...
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