Based on the method of compound synthesis, a new method of constructing the isothermal section phase diagram of tcrnary system is presented and the ternary C6H14O6-KCl-H2O system is taken as an example. By determinati...Based on the method of compound synthesis, a new method of constructing the isothermal section phase diagram of tcrnary system is presented and the ternary C6H14O6-KCl-H2O system is taken as an example. By determinating the optical rotation of the saturated solution in the equilibrium system, the contents of the other components can be calculated, and then the isothermal section diagram of the ternary system can be constructed. The results shows that the common saturation point is as=58.5%, bs=17.4%,cs=24.1%. The general application of the method is discussed also in this paper.展开更多
目的探讨Poincare散点图在分析糖尿病(DM)、慢性心力衰竭(HF)及糖尿病合并慢性心力衰竭(DM+HF)患者心率变异(HRV)中的使用价值。方法分别分析100例DM患者,100例HF患者,100例DM+HF患者和100例正常人24 h HRV的Poincare散点图及其定量指标...目的探讨Poincare散点图在分析糖尿病(DM)、慢性心力衰竭(HF)及糖尿病合并慢性心力衰竭(DM+HF)患者心率变异(HRV)中的使用价值。方法分别分析100例DM患者,100例HF患者,100例DM+HF患者和100例正常人24 h HRV的Poincare散点图及其定量指标,矢量长度指数(VLI)和矢量角度指数(VAI),并与部分时域指标(SDNN,SDSD)进行相关分析。结果正常人散点图均呈慧星型;DM组、HF组呈鱼雷型及短棒型;DM+HF组短棒型,3组患者24 h、清醒、睡眠时的SDNN、SDSD、VLI、VAI与正常组比较均显著降低,且昼夜变化节律消失。与DM组、HF组比较,DM+HF组SDNN、SDSD、VLI、VAI明显降低。相关分析显示VLI与SDNN和VAI与SDSD分别呈正相关。结论DM合并HF时自主神经受损严重。Poincare散点图能直观地反映DM、HF、DM+HF患者心脏自主神经功能状况,结合其量化指标可定量分析其HRV。展开更多
文摘Based on the method of compound synthesis, a new method of constructing the isothermal section phase diagram of tcrnary system is presented and the ternary C6H14O6-KCl-H2O system is taken as an example. By determinating the optical rotation of the saturated solution in the equilibrium system, the contents of the other components can be calculated, and then the isothermal section diagram of the ternary system can be constructed. The results shows that the common saturation point is as=58.5%, bs=17.4%,cs=24.1%. The general application of the method is discussed also in this paper.
文摘目的探讨Poincare散点图在分析糖尿病(DM)、慢性心力衰竭(HF)及糖尿病合并慢性心力衰竭(DM+HF)患者心率变异(HRV)中的使用价值。方法分别分析100例DM患者,100例HF患者,100例DM+HF患者和100例正常人24 h HRV的Poincare散点图及其定量指标,矢量长度指数(VLI)和矢量角度指数(VAI),并与部分时域指标(SDNN,SDSD)进行相关分析。结果正常人散点图均呈慧星型;DM组、HF组呈鱼雷型及短棒型;DM+HF组短棒型,3组患者24 h、清醒、睡眠时的SDNN、SDSD、VLI、VAI与正常组比较均显著降低,且昼夜变化节律消失。与DM组、HF组比较,DM+HF组SDNN、SDSD、VLI、VAI明显降低。相关分析显示VLI与SDNN和VAI与SDSD分别呈正相关。结论DM合并HF时自主神经受损严重。Poincare散点图能直观地反映DM、HF、DM+HF患者心脏自主神经功能状况,结合其量化指标可定量分析其HRV。