目的评价金龙固本合剂对支气管哮喘缓解期(痰瘀互结证)患者的临床疗效与安全性。方法将50例支气管哮喘缓解期(痰瘀互结证)患者随机分为试验组与对照组,试验组给予金龙固本合剂连续口服1个月,对照组予舒利迭吸入,观察治疗后及随访1个月、...目的评价金龙固本合剂对支气管哮喘缓解期(痰瘀互结证)患者的临床疗效与安全性。方法将50例支气管哮喘缓解期(痰瘀互结证)患者随机分为试验组与对照组,试验组给予金龙固本合剂连续口服1个月,对照组予舒利迭吸入,观察治疗后及随访1个月、3个月疾病的症状积分、哮喘控制测试表(asthma control test,ACT)评分等指标。结果治疗组总有效率是96%,对照组总有效率是79.2%,差异有统计学意义(P<0.05);ACT评分,试验组明显升高(P<0.05),差异有统计学意义,中医症状积分与ACT有较好的相关性。结论金龙固本合剂能显著改善支气管哮喘缓解期患者临床症状,提高ACT评分,减少急性发作次数,临床疗效显著,并且未发现明显临床不良反应。展开更多
The effect of Ti content on the microstructure and mechanical properties of as-cast light-weight Ti_(x)(AlVCr)_(100−x)medium entropy alloys was studied by compressive tests,X-ray diffraction,scanning electron microsco...The effect of Ti content on the microstructure and mechanical properties of as-cast light-weight Ti_(x)(AlVCr)_(100−x)medium entropy alloys was studied by compressive tests,X-ray diffraction,scanning electron microscopy and transmission electron microscopy.The results suggest that yield strength increases and then decreases with the increment of Ti content.The Ti_(60)(AlVCr)_(40)alloy has the best combination of high strength of 1204 MPa and uniform plastic strain of 70%,possessing a high specific yield strength of 255 MPa·cm^(3)/g.The enhancement of strength is mainly attributed to the synergic effects of solid-solution and coherent nano-precipitation strengthening,while dislocation motion such as dislocation pinning,entanglement and dislocation cells significantly increases the strain-hardening capacity.展开更多
The seismic safety of offshore wind turbines is an important issue that needs to be solved urgently.Based on a unified computing framework,this paper develops a set of seawater-seabed-wind turbine zoning coupling anal...The seismic safety of offshore wind turbines is an important issue that needs to be solved urgently.Based on a unified computing framework,this paper develops a set of seawater-seabed-wind turbine zoning coupling analysis methods.A 5 MW wind turbine and a site analysis model are established,and a seismic wave is selected to analyze the changes in the seismic response of offshore monopile wind turbines under the change of seawater depth,seabed wave velocity and seismic wave incidence angle.The analysis results show that when the seawater increases to a certain depth,the seismic response of the wind turbine increases.The shear wave velocity of the seabed affects the bending moment and displacement at the bottom of the tower.When the angle of incidence increases,the vertical displacement and the acceleration of the top of the tower increase in varying degrees.展开更多
文摘目的评价金龙固本合剂对支气管哮喘缓解期(痰瘀互结证)患者的临床疗效与安全性。方法将50例支气管哮喘缓解期(痰瘀互结证)患者随机分为试验组与对照组,试验组给予金龙固本合剂连续口服1个月,对照组予舒利迭吸入,观察治疗后及随访1个月、3个月疾病的症状积分、哮喘控制测试表(asthma control test,ACT)评分等指标。结果治疗组总有效率是96%,对照组总有效率是79.2%,差异有统计学意义(P<0.05);ACT评分,试验组明显升高(P<0.05),差异有统计学意义,中医症状积分与ACT有较好的相关性。结论金龙固本合剂能显著改善支气管哮喘缓解期患者临床症状,提高ACT评分,减少急性发作次数,临床疗效显著,并且未发现明显临床不良反应。
基金supported by the National Natural Science Foundation of China(Nos.52071176,12072331,51771090,51671103)the Priority Academic Program Development(PAPD)of Jiangsu Higher Education Institutions,China.
文摘The effect of Ti content on the microstructure and mechanical properties of as-cast light-weight Ti_(x)(AlVCr)_(100−x)medium entropy alloys was studied by compressive tests,X-ray diffraction,scanning electron microscopy and transmission electron microscopy.The results suggest that yield strength increases and then decreases with the increment of Ti content.The Ti_(60)(AlVCr)_(40)alloy has the best combination of high strength of 1204 MPa and uniform plastic strain of 70%,possessing a high specific yield strength of 255 MPa·cm^(3)/g.The enhancement of strength is mainly attributed to the synergic effects of solid-solution and coherent nano-precipitation strengthening,while dislocation motion such as dislocation pinning,entanglement and dislocation cells significantly increases the strain-hardening capacity.
基金supported in part by the National Natural Science Foundation of China(Nos.51978337,U2039209).
文摘The seismic safety of offshore wind turbines is an important issue that needs to be solved urgently.Based on a unified computing framework,this paper develops a set of seawater-seabed-wind turbine zoning coupling analysis methods.A 5 MW wind turbine and a site analysis model are established,and a seismic wave is selected to analyze the changes in the seismic response of offshore monopile wind turbines under the change of seawater depth,seabed wave velocity and seismic wave incidence angle.The analysis results show that when the seawater increases to a certain depth,the seismic response of the wind turbine increases.The shear wave velocity of the seabed affects the bending moment and displacement at the bottom of the tower.When the angle of incidence increases,the vertical displacement and the acceleration of the top of the tower increase in varying degrees.
