Effect of Caudal Traction on Mechanical Nociceptive Thresholds of Epaxial and Pelvic Musculature on a Group of Horses With Signs of Back Pain     

《Journal of Equine Veterinary Science》2020

Direct muscular attachment from lumbar vertebrae to the caudal vertebrae of the tail suggests that caudal traction, also described as a tail pull, may affect lumbar vertebral segments and/or associated soft tissues in horses. Traction is a commonly used human manual therapy technique used for pain relief and anecdotally observed to relieve pain in horses. However, research is lacking validating the efficacy of manual caudal traction on the horse. The objective of this study was to determine if caudal traction has an effect on mechanical nociceptive thresholds (MNTs) in a group of horses with clinical signs of back pain. Pressure algometry was used to measure MNTs of five bilateral anatomical sites in the epaxial and pelvic musculature of 11 horses referred to physiotherapy because of clinical signs of back pain. Measurements were recorded both before and immediately after traction. A significant difference (P ≤ .05) was identified between mean before and after caudal traction algometry measurements in all described sites. The percentage of MNT increase was highest in the thoracic region (83%) compared with the lumbar (50%) and the pelvic (52.4%) regions. These results support an effect of caudal traction in increasing MNTs in the thoracolumbar and pelvic regions in horses. Further research to determine the clinical effect of this technique is warranted.  相似文献   

Craft to Study Ultrasonic Eextraction of the Alkaloid Composition From Sophara Flavescens Ait     

ZOU Shu-shu  WANG Gui-xue 《保鲜与加工》2007,(7):130-133

  相似文献   

EQUAL ARA ALGORITHM OF PWW WAVEFORM     

Wang Xeqin 《保鲜与加工》1988,(2)

This paper presents the equal theory of the sine wave voltage and PWM waveform in the integration of time. Using the graphic method as well as the comparison method of sequential integration the PWM control pattern is calculated. Depending on an example for PWM circuit inverter the microcomputer is investi-gated. The method is simple and effective. It is specially adeguate to the engineering control.  相似文献   

A Receiving Surface of Perturbative Photon Fluxes in Interaction Between Gravitational Waves and EM Fields     

ZHANG Yi  WU Zhang-han 《保鲜与加工》2004,(9):60-63

According to Electrodynamics in curved spacetime, the interaction between gravitational waves (GW) and electromagnetic (EM) fields will produce perturbative electromagnetic fields. In a special EM system, namely, a Gaussian beam (Gb) propagating through a static magnetic field, the photon flux along the direction of the electric field of the Gb will be only a pure perturbative photon flux,when a GW propagates along the symmetric axis of a Gaussian beam. Detailed alanysis and calculation of the photon flux along several typical surfaces are performed, and a possible optimum plane which can receive perturbative photons up to 10~4s~(-1) is proposed. It is possible to provide an important method to detection of GW.  相似文献   

NUMERICAL SOLUTIONS OF SHOCK WAVE FOCUSING WITH CCW METHOD     

Chen Jingqiu 《保鲜与加工》1992,(2):26-31

By the use of a numerical scheme of chisnell-Chester-Whitham Method (CCW), some numerical solutions to the problems of shock wave focusing are completed successfully and simply.  相似文献   

FDTD Method''s Application in the Research of Television Interference From High Voltage Transmission Line     

LIU Qing-song~ 《保鲜与加工》2004,(4):15-19

The mechanism of television interference is discussed from High voltage transmission line. Then the computational model is established, and scattering fields are calculated with the finite-difference time-domain(FDTD) method, and the results are visualized. The scattering effects of High voltage transmission lines on horizontal polarization waves (corresponding to TM mode) are greater than on vertical polarization waves (corresponding to TE mode).  相似文献   

A Class of Exact Solution for RLW-Burgers Equation     

TAN Jun Yu 《保鲜与加工》2001,(5):145-148

A class of analytic solution for RLW Burgers equation and KdV Burgers equation are given which include results of some papers.These solutions can be expressed as some linear combination of solutions of Burgers equation and RLW equation or KdV equation which correct conclusion in some paper.  相似文献   

电控柴油机泵喷嘴技术     

姚美红  陈燕 《拖拉机与农用运输车》2006,33(5):3-4

为了提高柴油机的动力性、燃油经济性,降低排放(浮游颗粒PM和NOx)和噪声,优良的混合气准备是解决以上问题的关键因素。这要求高效喷射系统产生高喷射压力,确保燃油雾化良好,并且还必须精确控制喷油始点和喷油量。研究结果表明,本文介绍的泵喷嘴技术可以满足这一严格要求。泵喷嘴技术的关键是把喷油泵和喷嘴合成一体,以省去高压油管并获得高喷射压力。  相似文献   

河道堤防设计高程的概率设计和风   总被引：1，自引：0，他引：1  

伍元  范子武  姜树海 《中国农村水利水电》2005,(4):14-17

介绍河道堤防设计高程的概率和风险校核方法。该方法综合考虑多种不确定性因素的影响，利用随机微分方程推求河道水位的概率分布，并对风浪的随机影响进行分析，按照随机可靠性理论，对常规采用确定性方法确定的河道堤防高程进行漫顶风险校核和可靠性设计。  相似文献   

水产品收购价格预测的时序组合模型研究   总被引：3，自引：0，他引：3  

张小栓  张健  傅泽田  穆维松 《农机化研究》2004,(2):86-88

我国水产品市场已经出现了区域性、结构性的供大于求及价格持续下降的现象。为此，对水产品价格进行预测是必要的。以1978～1999年数据为样本，利用时序组合模型对2000年的水产品收购价格进行了预测研究。  相似文献