目的:探讨多元复合声治疗联合口服银杏叶提取物在治疗慢性主观性耳鸣患者中的效果与安全性。方法:选取我院2021年2月至2024年2月收治的60例慢性主观性耳鸣患者作为研究对象,采用随机数字表法分为单一组和联合组,各30例。单一组患者接受...目的:探讨多元复合声治疗联合口服银杏叶提取物在治疗慢性主观性耳鸣患者中的效果与安全性。方法:选取我院2021年2月至2024年2月收治的60例慢性主观性耳鸣患者作为研究对象,采用随机数字表法分为单一组和联合组,各30例。单一组患者接受多元复合声治疗,联合组在单一组的基础上增加口服银杏叶提取物治疗。分别评估两组患者的临床疗效、听力损失程度、耳鸣改善情况[耳鸣严重程度分级量表(Tinnitus Handicap Inventory,THI)]、生活质量[健康状况调查量表(36-Item Short Form Health Survey,SF-36)]、睡眠质量[匹兹堡睡眠质量指数(Pittsburgh Sleep Quality Index,PSQI)]和心理状态[贝克焦虑量表(Beck Anxiety Inventory,BAI)]。结果:联用组的临床总有效率明显高于单一组(P<0.05);治疗后,两组患者的听力损失程度和THI评分、PSQI、BAI评分均明显降低,且联用组明显低于单一组(P<0.05);两组患者的SF-36评分均明显升高,且联用组明显高于单一组(P<0.05)。结论:多元复合声治疗联合口服银杏叶提取物治疗慢性主观性耳鸣患者临床疗效好,可以有效降低听力损伤程度,改善患者的耳鸣症状,提高其生活质量和睡眠质量,促进心理健康。展开更多
Intensity of cavitation is significant in ultrasonic wastewater treatment,but is complicated to measure.A time difference based method of ultrasonic cavitation measurement is proposed.The time differences at different...Intensity of cavitation is significant in ultrasonic wastewater treatment,but is complicated to measure.A time difference based method of ultrasonic cavitation measurement is proposed.The time differences at different powers of 495 kHz ultrasonic are measured in experiment in comparison with conductimetric method.Simulation results show that time difference and electrical conductivity are both approximately positive proportional to the ultrasonic power.The degradation of PNP solution verifies the availability in wastewater treatment by using ultrasonic.展开更多
In this paper the mechanism producing scrooping sound has been discussedtheoretically.It has been recognized that the continuous stick-slip vibrationhaving a certain period and the bigger △E(△E——enery released by ...In this paper the mechanism producing scrooping sound has been discussedtheoretically.It has been recognized that the continuous stick-slip vibrationhaving a certain period and the bigger △E(△E——enery released by stick-slipvibration at one time)are the requisite and surfficient conditions producingscrooping sound.For fiber sample,its surface properties and internal structureare two principal factors influencing scrooping sound. Considering the surface properties of polyester fiber after scrooping treatmentare the synthetic reflection of the properties used treatment reagents and thesurface properties of the fiber,how selecting proper reagents for scroopingtreatment would be the key factor influencing the scrooping effect.Sometreatment solutions having better scrooping effect have been obtained in the paper. In order to cause better scrooping effect,not only the treatment reagent andsurface properties of the fiber,but also the internal structure of the fiber must beconsidered,It has been shown in展开更多
文摘目的:探讨多元复合声治疗联合口服银杏叶提取物在治疗慢性主观性耳鸣患者中的效果与安全性。方法:选取我院2021年2月至2024年2月收治的60例慢性主观性耳鸣患者作为研究对象,采用随机数字表法分为单一组和联合组,各30例。单一组患者接受多元复合声治疗,联合组在单一组的基础上增加口服银杏叶提取物治疗。分别评估两组患者的临床疗效、听力损失程度、耳鸣改善情况[耳鸣严重程度分级量表(Tinnitus Handicap Inventory,THI)]、生活质量[健康状况调查量表(36-Item Short Form Health Survey,SF-36)]、睡眠质量[匹兹堡睡眠质量指数(Pittsburgh Sleep Quality Index,PSQI)]和心理状态[贝克焦虑量表(Beck Anxiety Inventory,BAI)]。结果:联用组的临床总有效率明显高于单一组(P<0.05);治疗后,两组患者的听力损失程度和THI评分、PSQI、BAI评分均明显降低,且联用组明显低于单一组(P<0.05);两组患者的SF-36评分均明显升高,且联用组明显高于单一组(P<0.05)。结论:多元复合声治疗联合口服银杏叶提取物治疗慢性主观性耳鸣患者临床疗效好,可以有效降低听力损伤程度,改善患者的耳鸣症状,提高其生活质量和睡眠质量,促进心理健康。
基金Supported by the National Natural Science Foundation of China(No.11274092,11274091,11304026)the Fundamental Research Funds for the Central Universities(No.14B10128)
文摘Intensity of cavitation is significant in ultrasonic wastewater treatment,but is complicated to measure.A time difference based method of ultrasonic cavitation measurement is proposed.The time differences at different powers of 495 kHz ultrasonic are measured in experiment in comparison with conductimetric method.Simulation results show that time difference and electrical conductivity are both approximately positive proportional to the ultrasonic power.The degradation of PNP solution verifies the availability in wastewater treatment by using ultrasonic.
文摘In this paper the mechanism producing scrooping sound has been discussedtheoretically.It has been recognized that the continuous stick-slip vibrationhaving a certain period and the bigger △E(△E——enery released by stick-slipvibration at one time)are the requisite and surfficient conditions producingscrooping sound.For fiber sample,its surface properties and internal structureare two principal factors influencing scrooping sound. Considering the surface properties of polyester fiber after scrooping treatmentare the synthetic reflection of the properties used treatment reagents and thesurface properties of the fiber,how selecting proper reagents for scroopingtreatment would be the key factor influencing the scrooping effect.Sometreatment solutions having better scrooping effect have been obtained in the paper. In order to cause better scrooping effect,not only the treatment reagent andsurface properties of the fiber,but also the internal structure of the fiber must beconsidered,It has been shown in
