氟哌噻吨美利曲辛联合针刺内关穴对PCI术后老年伴有焦虑抑郁冠心病患者的疗效

目的:探讨氟哌噻吨美利曲辛(FM)联合针刺内关穴对经皮冠脉支架介入(PCI)术后老年伴焦虑抑郁冠心病(CHD)患者的疗效。方法:选择PCI术后3d老年伴发焦虑抑郁的CHD患者112例,随机分成常规治疗组(36例)、FM组(38例,在常规治疗组基础上接受FM治疗)和FM+针刺组(38例,在FM组基础上接受内关穴针刺),治疗2周。比较三组治疗前后的医院焦虑抑郁量表(HADS)评分。结果:三组患者的一般资料及术后3d的HADS评分均无显著差异(P均>0.05)。与术后3d比较,治疗2周后FM组HADS评分[(12.89±2.65)分比(10.62±2.69)分]、FM+针刺组HADS评分[(12.87±2.82)分比(8.61±2.32)分]均显著降低,P均=0.001;与常规治疗组比较,治疗2周后FM组、FM+针刺组HADS评分[(12.11±3.02)分比(10.62±2.69)分比(8.61±2.32)分]显著降低,且FM+针刺组的显著低于FM组的,P<0.05或<0.01。结论:与单纯口服氟哌噻吨美利曲辛相比,联合针刺内关穴能进一步显著缓解老年冠心病患者PCI术后焦虑抑郁状态,值得推广。

基于视觉的清洗机械臂位姿检测系统

设计了一种基于视觉的5自由度清洗机械臂位姿检测系统。系统由C6000系列DSP、TVP5147M复合视频采集卡、高精度CCD以及太阳能板特征模拟样本组成。搭建了一个DSP数字图像处理实验平台,进行位姿检测实验,在实验过程中,根据使用目标板自身特性利用全局信息搜索目标特征的方法提取特征点;通过理论研究确定了基于单摄像机成像及成像过程中的坐标系变换理论;利用P4P问题和目标位姿求解算法确定目标板与机械臂之间的相对空间位置以及机械臂末端执行器的姿态。实验结果显示,系统能够实时检测到机械臂与目标工件之间的相对空间位置和姿态,当检测距离为0～800 mm,位置误差精度可以达到2.7%。

Detection technology and application of electromagnetic method for hidden danger of water gushing at coal face

The principles,methods,technologies and application effects of several electromagneticmethods for the detection of the hidden danger of water gushing at the coalface were introduced.Also,emphasis was laid on expounding the methods,principles andeffects of down-hole detections by electric transmission tomography and transient electromagneticmethod.The potential of point power supplied in the underground homogeneoussemi-space,as well as the response to a low-resistivity abnormal body in file hemogeneoussemi-space,was simulated by adopting 3-D finite element method to interpretthe basic theory of the electric transmission tomography.The results of actual measurementshow that the mine electromagnetic method is sensitive to water-bearinglow-resistivity bodies and can play a unique role in detecting the hidden danger of watergushing at the coal face.

Analysis of Optical Signal Transmission Characteristics in AWG Multi/Demultiplexer with Electromagnetic Field Theory

Based on the electromagnetic field theory, the optical signal transmission characteristics in input/output waveguides, slab waveguides and arrayed waveguides of the arrayed waveguide grating (AWG) multi/demultiplexer are analyzed. The relationship between the physical parameters such as geometry sizes and relative refractive index in AWG multi/demultiplexer and the optical signal transmission characteristics are discussed. This theoretical study can be used for optimizing the design and improving the performance of the AWG multi/demultiplexer.

小艾炷直接灸治疗慢性颈痛的量效关系研究

目的:评价小艾炷直接灸治疗慢性颈痛的有效性,探索不同壮数的小艾炷直接灸治疗慢性颈痛的量效关系。方法:将120例慢性颈痛患者随机分为3壮组、5壮组、7壮组和假灸组,各30例,均选取风池、天柱、颈百劳、肩中俞、肩井,分别接受小艾炷直接灸3壮、5壮、7壮及假艾灸的治疗。假灸组操作采用万花油将艾炷的下1/3(约1.5 mm)浸透。每周2次,共治疗10次。观察各组治疗前、治疗后和随访1个月的NorthwickPark颈痛量表(NPQ)评分、McGill疼痛量表(MPQ)评分及局部压痛阈值(PPT),并评定各组治疗后及随访1个月的疗效。结果:治疗后和随访1个月,3壮组、5壮组及7壮组NPQ评分、MPQ评分均较治疗前降低(均P<0.01),PPT测量值均较治疗前升高(均P<0.01),而假灸组与治疗前比较,差异均无统计学意义(均P>0.05)。治疗后和随访1个月,3壮组、5壮组及7壮组NPQ评分、MPQ评分均低于假灸组(均P<0.05),PPT测量值均高于假灸组(均P<0.05);治疗后,7壮组NPQ评分、MPQ评分低于3壮组,PPT测量值高于3壮组(均P<0.05)。3壮组、5壮组和7壮组在治疗后和随访1个月的疗效优于假灸组(均P<0.05);各艾灸组间疗效比较,差异无统计学意义(P>0.05)。结论:不同壮数的小艾炷直接灸均可以有效缓解慢性颈痛,总体趋势为随着壮数增加而疗效提高。