目的 通过三维能量多普勒超声(3D PDUS)观察宫腔镜治疗重度宫腔粘连(IUAs)患者子宫内膜血流的变化来评估其治疗效果。方法 收集40例宫腔镜确诊的严重宫腔粘连患者。对所有患者均进行术前、术后二维常规经阴道超声和3D PDUS检查,并进行对比分析。采用4D VOCAL 软件获得
transmission and distribution of electricity. Now, many electrically driven devices are relying on direct current or single-phase alternating current power supply that complicates utilization of three-phase power supply by requiring additional elements...
Research of high-power-factor rectifier simulating experiment platform based on MATLAB The simulating experiment platform is eatablished by the use of the MATLAB simulink taking the three-phase PWM rectification circuit for example.This platf... MA Ning-Li,HY Wang - 《Electronic Design Engineering...
Conclusion The power quality analysis system is de- signed to realize the network multi- parameter measurement, with taking ad- vantages of SOPC technology. The hard- ware description language is used to achieve A/D controlling, realize digital phase-locked frequency multiplier circuit and data ...
Three Phase SPWM Inverter Experiment objective is to learn the principles of three-phase SPWM, SVPWM and zero sequence injection. Via PEK-130 module, students learn the voltage and current measurement method and the settings of TI F28335 DSP IC pin locations, PWM and A/D hardware as well as...
Kuroda T, Kinter TM, Seward JB, Yanagi H, Greenleaf JF (1991) Accuracy of three-dimensional volume measurement using biplane transesophageal echocardiographc probe: in vitro experiment. J Am Soc Echocardiogr 4:475–484Kuroda T, Kjnter TM, Seward JB, Yanagi H, Greenleaf JF. Accuracy of ...
For a typical experiment, we use an average laser power of∼2 mW per beam (8 mW) total at the objective back aperture. For a typical φ40 nm fluorescent bead (F8770, Life Technologies.) photon count rates are in the range of 500–800 kHz (Supplementary Fig. 17) and target...
During the two-phase experiment, the pressure of gas comes from the air storage tank is high. To ensure both water and air can enter into the flow homogenizer, the pressure of water should be also kept relatively high and maintain the pressure balance between air and water. Then water and...
Due to the increased frequency of extreme weather events and the implementation of the China’s dual-carbon target, thermal power companies have been under pressure to construct green infrastructure and to actively pursue low-carbon transformation in res
The velocity-map imaging experiment is contained within a high-vacuum system with a base pressure of around 10−7mbar. Neutral CF3I was prepared in a highly diluted seeded molecular beam with He as the buffer gas at a stagnation pressure of 1.2 bar, via supersonic expansion through a ...