The water intake head installed with inclined boardings is called laminate sediment precipitation, which separates liquid and solid particles in two-phase flow by gravity. The paper presents the equations for calculat...The water intake head installed with inclined boardings is called laminate sediment precipitation, which separates liquid and solid particles in two-phase flow by gravity. The paper presents the equations for calculating the distance H between two incllined boardings, indicating that H has a key effect on the particle precipitation velocity V_2. The paper focuses also on the cal- culation of hydraulic similarity of model with the theoretic model.展开更多
Acupuncture has been shown to lessen the inflammatory reaction after acute spinal cord injury and reduce secondary injury.However,the mechanism of action remains unclear.In this study,a rat model of spinal cord injury...Acupuncture has been shown to lessen the inflammatory reaction after acute spinal cord injury and reduce secondary injury.However,the mechanism of action remains unclear.In this study,a rat model of spinal cord injury was established by compressing the T8-9 segments using a modified Nystrom method.Twenty-four hours after injury,Zusanli(ST36),Xuanzhong(GB39),Futu(ST32)and Sanyinjiao(SP6)were stimulated with electroacupuncture.Rats with spinal cord injury alone were used as controls.At 2,4 and 6 weeks after injury,acetylcholinesterase(ACh E)activity at the site of injury,the number of medium and large neurons in the spinal cord anterior horn,glial cell line-derived neurotrophic factor(GDNF)m RNA expression,and Basso,Beattie and Bresnahan locomotor rating scale scores were greater in the electroacupuncture group compared with the control group.These results demonstrate that electroacupuncture increases ACh E activity,up-regulates GDNF m RNA expression,and promotes the recovery of motor neuron function in the anterior horn after spinal cord injury.展开更多
文摘The water intake head installed with inclined boardings is called laminate sediment precipitation, which separates liquid and solid particles in two-phase flow by gravity. The paper presents the equations for calculating the distance H between two incllined boardings, indicating that H has a key effect on the particle precipitation velocity V_2. The paper focuses also on the cal- culation of hydraulic similarity of model with the theoretic model.
基金supported by a grant from the Shaanxi Province Scientific and Technological Project in China,No.2014TM4193
文摘Acupuncture has been shown to lessen the inflammatory reaction after acute spinal cord injury and reduce secondary injury.However,the mechanism of action remains unclear.In this study,a rat model of spinal cord injury was established by compressing the T8-9 segments using a modified Nystrom method.Twenty-four hours after injury,Zusanli(ST36),Xuanzhong(GB39),Futu(ST32)and Sanyinjiao(SP6)were stimulated with electroacupuncture.Rats with spinal cord injury alone were used as controls.At 2,4 and 6 weeks after injury,acetylcholinesterase(ACh E)activity at the site of injury,the number of medium and large neurons in the spinal cord anterior horn,glial cell line-derived neurotrophic factor(GDNF)m RNA expression,and Basso,Beattie and Bresnahan locomotor rating scale scores were greater in the electroacupuncture group compared with the control group.These results demonstrate that electroacupuncture increases ACh E activity,up-regulates GDNF m RNA expression,and promotes the recovery of motor neuron function in the anterior horn after spinal cord injury.