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To further identify the real efficacy and safety of dexmedetomidine as an adjuvant to local wound infiltration anaesthesia, we conducted this meta‐analysis. The systematic search strategy was performed using PubMed, Embase, Cochrane Library, and Chinese databases. As a result, a total of 23 RCTs (1445 patients) were included. Patients receiving dexmedetomidine combined with local anaesthetics had...
To assess the efficacy and safety of dexmedetomidine (DEX) as an adjuvant to local wound infiltration anaesthesia in abdominal surgery, we conducted this meta‐analysis. First, the systematic search strategy was performed on PubMed, Embase, and Cochrane Library and five randomised controlled trials (RCTs) involving 294 patients were included. Then, the outcome data were extracted from the studies and...
Contrast change is a special type of image distortion which is vitally important for visual perception of image quality, while little investigates has been dedicated to the contrast-distorted images. A proper contrast change not only reduces human visual perception, instead of improving it. This characteristic determines that full-reference way cannot assess contrast-distorted images properly. In...
A novel comprehensive real-time on-line calculation model of coal's Low Heating Value (LHV) in coal-fired boiler is presented in this paper. Firstly, the training operational data is partitioned into several subsets by means of C-Means cluster method. Then, the Least Squares Support Vector Machine (LS-SVM) method is used to training the sub-models in each subset. Finally, the sub-models are combined...
This paper introduces an online precision spindle rotation error measurement system based on three point method. In this measurement system, the connection of software and hardware, data acquisition and processing, results displaying and saving and other functions have been realized. The feasibility and reliability of the measurement system have been proved by the measurement of a machining center...
In order to overcome the drawbacks of the bad low speed performance of the direct torque control of induction motor. Active Disturbance Rejection Controller (ADRC) replaces the classic PID in a speed loop method on the base of the direct torque control of induction motor is proposed. Through the simulation results of different speeds show that the speed modulation performance of ADRC-DTC basically...
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