CLINICAL ANALYSES OF ULTRASOUND-GUIDED NERVE BLOCK IN LOWER-EXTREMITY SURGERY: A RETROSPECTIVE STUDY


Mitigation of Short-Term Temporal Variations of Receiver Code Bias to Achieve Increased Success Rate of Ambiguity Resolution in PPP

Ambiguity resolution (AR) is critical for achieving a fast, high-precision solution in precise point positioning (PPP).In the standard uncombined PPP (S-UPPP) method, ionosphere-free code biases are superimposed by ambiguity and receiver clock offsets to be estimated.However, besides the time-constant part of the receiver code bias, the complex and

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The evaluation of the critical wind speed that overturns a vehicle with space-averaged instantaneous wind velocity

Under the existing method based on a detailed equation for evaluating the wind speed that skull bride and groom can cause a vehicle to overturn, it is assumed that the crosswind blows the vehicle at the same wind speed uniformly over the entire length of the vehicle body along the track.However, taking into consideration the actual wind state, ther

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