International nuclear arms control regimes have changed and improved greatly since the end of the Cold War. These regimes are now being adjusted based on the concept of "a nuclear-free world",with China play...International nuclear arms control regimes have changed and improved greatly since the end of the Cold War. These regimes are now being adjusted based on the concept of "a nuclear-free world",with China playing a constructive role. Although these adjustments provide China with the opportunity to play a more influential part,they have also placed her under greater diplomatic pressure.展开更多
Objective: to explore the application effect of programmed sedation nursing in ICU patients with mechanical ventilation. Methods: 128 mechanical ventilation patients in ICU of our hospital from May 2018 to May 2020 we...Objective: to explore the application effect of programmed sedation nursing in ICU patients with mechanical ventilation. Methods: 128 mechanical ventilation patients in ICU of our hospital from May 2018 to May 2020 were randomly divided into control group (routine sedation nursing) and program group (programmed sedation nursing). The sedation effect and sedation adverse reactions of the two groups were observed. Results: after the programmed sedation nursing, the sedative dosage of the program group was significantly less than that of the control group, and the mechanical ventilation time and ICU treatment time of the program group were significantly shorter than those of the control group, P < 0.05. The incidence of sedation adverse reactions in the program group was significantly lower than that in the control group, P < 0.05. Conclusion: programmed sedation nursing for ICU patients with mechanical ventilation can effectively improve the sedation effect and reduce the occurrence of sedation adverse reactions, which is worthy of promotion.展开更多
Owing to the structural errors in the optical phased array,an initial random phase reduces the quality of the deflection beam.The most commonly applied approach to phase calibration is based on adaptive optics.However...Owing to the structural errors in the optical phased array,an initial random phase reduces the quality of the deflection beam.The most commonly applied approach to phase calibration is based on adaptive optics.However,adaptive optimisation approaches have slow convergence and low diffraction efficiency.We proposed a pointwise optimisation approach to achieve fast and accurate beam deflection.This approach conducts phase calibration,combining global traversal and local searches individually for each array element.We built a phase-calibration optical system containing a one-dimensional optical waveguide phase array for further verification and designed the relevant mechanics.The simulation and experimental results demonstrate that the pointwise optimisation approach accelerates the calibration process and improves the diffraction efficiency.展开更多
文摘International nuclear arms control regimes have changed and improved greatly since the end of the Cold War. These regimes are now being adjusted based on the concept of "a nuclear-free world",with China playing a constructive role. Although these adjustments provide China with the opportunity to play a more influential part,they have also placed her under greater diplomatic pressure.
文摘Objective: to explore the application effect of programmed sedation nursing in ICU patients with mechanical ventilation. Methods: 128 mechanical ventilation patients in ICU of our hospital from May 2018 to May 2020 were randomly divided into control group (routine sedation nursing) and program group (programmed sedation nursing). The sedation effect and sedation adverse reactions of the two groups were observed. Results: after the programmed sedation nursing, the sedative dosage of the program group was significantly less than that of the control group, and the mechanical ventilation time and ICU treatment time of the program group were significantly shorter than those of the control group, P < 0.05. The incidence of sedation adverse reactions in the program group was significantly lower than that in the control group, P < 0.05. Conclusion: programmed sedation nursing for ICU patients with mechanical ventilation can effectively improve the sedation effect and reduce the occurrence of sedation adverse reactions, which is worthy of promotion.
基金the National Natural Science Foundation of China under Grant Nos.61922011 and U21B2034partly by the Open Research Projects of KLOMT under Grant No.2022KLOMT02-02.
文摘Owing to the structural errors in the optical phased array,an initial random phase reduces the quality of the deflection beam.The most commonly applied approach to phase calibration is based on adaptive optics.However,adaptive optimisation approaches have slow convergence and low diffraction efficiency.We proposed a pointwise optimisation approach to achieve fast and accurate beam deflection.This approach conducts phase calibration,combining global traversal and local searches individually for each array element.We built a phase-calibration optical system containing a one-dimensional optical waveguide phase array for further verification and designed the relevant mechanics.The simulation and experimental results demonstrate that the pointwise optimisation approach accelerates the calibration process and improves the diffraction efficiency.
