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CLINICAL RESEARCH ON THE EFFECT OF ACUPUNCTURE ON THE LEFT VENTRICULAR CONTRACTION FUNCTION IN SYMPTOMLESS CARDIAC FAILURE PATIENTS 被引量:2
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作者 李金波 张艳 李捷 《World Journal of Acupuncture-Moxibustion》 2003年第2期16-19,共4页
Objective: To observe the effect of acupuncture therapy on the function of myocardial contraction in symptomless cardiac failure patients.Methods: A total of 60 cases of symptomless cardiac insufficiency inpatients we... Objective: To observe the effect of acupuncture therapy on the function of myocardial contraction in symptomless cardiac failure patients.Methods: A total of 60 cases of symptomless cardiac insufficiency inpatients were randomly divided into medication and acupuncture groups, with 30 cases in each group. For patients of acupuncture group, Neiguan (PC 6), Ximen (PC 4), Tanzhong (CV 17), Xinshu (BL 15), Jueyinshu (BL 14) and Geshu (BL 17) were punctured, twice daily, with 30 days being a therapeutic course. In medication group, patients were asked to take Capoten 25 mg (t.i.d.). The left ventricular ejection fraction (LVEF) and its fractional shortening (FS) of the minor axis were used as the indexes for assessing the therapeutic effect and detected by using a color ultrasonic Doppler apparatus. Results: After one course of treatment, of the each 30 cases of acupuncture and medication groups, 13 (43.3%) and 16 (53.3%) had marked improvement, 16 (53.3%) and 14 (46.7%) had improvement, and 1 (3.3%) and 0 had no any effect respectively. No significant difference was found between two groups in the therapeutic effect. It shows acupuncture therapy can improve myocardial contraction function. Conclusion: Acupuncture has a similar effect in enhancing the systolic function of the myocardium. 展开更多
关键词 Symptomless cardiac failure Left ventricular ejection fraction Fractional shortening of the minor axis
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Least Squares Fitting Based Fault Classification in Distribution Systems 被引量:1
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作者 Omar A. Saraereh Qais Alsafasfeh +2 位作者 Anas Al Tarabsheh Aouda Arfoa Issa Etier 《Journal of Energy and Power Engineering》 2014年第3期560-567,共8页
Power systems are the largest and most complex human made systems, consisting of thousands of electrical sources, loads, transmission and distribution lines, power transformers, circuit breakers, etc. where faults alw... Power systems are the largest and most complex human made systems, consisting of thousands of electrical sources, loads, transmission and distribution lines, power transformers, circuit breakers, etc. where faults always occurred. Faults can cause personnel and equipment safety problems, and can result in significant disruption to power supply and thus financial losses. In this paper we will present comprehensive mathematical suite to detect and classify fault dependent models of various types of power systems. This work will extract fault unique signatures by using polarization ellipse during the healthy condition and the polarization will be circular shape with radius equal the rated voltage of the system, but during the fault condition the polarization will be ellipse shape and the fault signature will be defined according the ellipse parameters major axis, minor axis, ellipticity and orientation angle, by using least squares criterion will define the ellipse parameters this system will identify and classify. This paper will be a milestone for extended paper based on the proposed mathematical modelling and applying it to identify, classify and localize with simulation model. 展开更多
关键词 Distribution systems major axis minor axis ELLIPTICITY FAULT ELLIPSE least squares criterion.
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