The controls took the lithotomy position and those in the obser.

Objective To examine the results of a modified lithotomy position in gynecological laparoscopic surgery.

Objective To improve the method of traditional lithotomy position and to explore the influence of lithotomy position for postoperative complications.

Objective For understanding the reasons for adverse reactions of bladder lithotomy position and the corresponding preventive measures.

Amplitude-quantization spurs in direct digital frequency synthesizers in absence of phase truncation;

Emulational analysis of the spectrum characteristic caused by the phase truncation in direct digital frequency synthesizer;

The output signal background spurious brought about by phase truncation and digital amplitude are explained from the angle of the theory of signal and system,and in the end the effects of D/A s none ideal characteristics and the clock s phase noise are expounded.

The reason and preventive method of high level paraplegia are discussed through the analysis of 284 cases of interventional treatment by bronchial artery.

This new discovery provides an effective theoretical guide as well as an efficient method for solving the problem of high level paraplegia complication in the intervention treatment of lung cancer.