血流

As a new messenger factor,carbon monoxide can activate soluble guanyl cyclas,relax angio-smooth muscle,prevent platelet from aggregation and inhibit angio-smooth muscle cells proliferation,therefore it can maintain normal blood stream in coronary artery.

一氧化碳是一种新的信使因子，通过激活可溶性鸟苷酸环化酶，舒张血管平滑肌，抑制血小板聚集和抑制血管平滑肌细胞增殖，从而恢复冠状动脉的正常血流。血红素氧合酶通过其抗动脉粥样硬化作用对冠状动脉起保护作用。

Methods: We selected 71 patients with acute hemorrhagic stroke as the study group who were hospitalized within 24 hours after onset in the 1st 3rd 5th 7th 9th 11th 13th 15th day of hospitalization and prior to the usage of dehydrant. We selected 30 normal people as the control group. We collected the data of cerebrovascular hemodynamic index including cerebral blood flow and velocity, cerebrovascular resistance, cerebrovascular elasticity ,dynamic resistance and critical pressure for each patient . We compared the data between the study group and control group ,also we compared the data in the different time after disease onset and the data of affected side and non-affected side by using SPSS software.

选择急性出血性脑血管病患者71例为观察组，正常人30例作为对照组，观察组以发病时间为起点，分别在发病后第1、3、5、7、9、11、13、15天且在使用脱水药前行脑循环动力学检测仪检测获得脑循环动力学参数，包括血流速度、血流量、血管弹性指标，血管阻力、血管调节功能指标动态阻力及临界压力数值，对观察组和对照组的各项数值进行比较，及观察组在发病后的不同时间进行前后比较，且对患侧和健侧数值之间进行比较，所得数据使用SPSS软件处理。

Methods The rat models of heart failure were established by left anterior descending coronary artery deligation. After 6 w, 24 surviving rats were divided into sham,model and Ramipril groups at random,8 rats in each,and were treated with medicines by intragastric administration respectively. At 10 w, left ventricular enddiastolic pressure, left ventricular systolic pressure,+dp/dtmax anddp/ dtmaxof left ventricular pressure were measured.

结扎大鼠左冠状动脉前降支并饲养6 w的16只存活大鼠，随机分为模型组及雷米普利组，每组8只，另取8只大鼠为假手术组，连续灌胃给药4 w后测定大鼠血流动力学参数，ELISA方法检测血清及左心室非梗死区AngⅡ的含量，RTPCR 法测定左心室非梗死区心肌组织AT1R mRNA表达水平，Masson染色观察非梗死区心肌胶原的沉积。

The signal will not dephase, so arteries will be bright on diastolic scans.

在舒张期时，动脉内的血流因为流速相对缓慢而不会产生失相位，动脉呈高信号。

Methods The dermatic microcirculation was studied on4sites(forehead,left crow's feet,left flexure of forearm,left back of hand)in50female volunteers with photo-type II～III,aged20～74years old by means of videocapillaroscopy and laser Doppler flowmetry.

方法采用活体电视毛细血管镜(IntravitalVideo-capillaroscopy)和激光多谱勒血流仪对50名年龄在20～74岁，光皮肤类型为II～III型白人女性志愿者的前额、眼角、前臂内侧和手背血管作初步观察。

Especially the formation of reversal gradient of blood pressure before the dicrotic notch.

特别是逆向血压梯度的形成，认为动脉血流的惯性及左心室的舒张是重搏波切迹前短时期内近心端血压低于远心端血压的主要原因，在动脉中存在着惯性动能与压力势能之间的相互转化。

This paper is about the hydrodynamics of blood in flow channel on the principle of hydrodynamics, and the hydrodynamics equations of Newton-fluid and Casson-fluid in rectangle channel. It also includes the studies of the diphasic flow. The fluid model selection is discussed from the examples in the hemorheology studies using flow channel technique.

本文用流体动力学原理，研究了流动渠道中的血流动力学问题，分别推导了牛顿流体、Casson流体在矩形渠道中的流体动力学方程，文中还对流动渠道内的二相流问题进行研究，并就血液流变学研究中利用流动渠道技术的应用实例，讨论了流体模型选择问题

Results The negative correlations were found on the Glasgow Outcome Scoreto the items such as conscious state at admission,Glasgow Coma Score,psychiatric symptoms,hemiplegia,Babinski sign,abnomal degree of Electroencephalogram,focal lesions found by neuro-image investigation and mean peak flow velocityand pulsatility indexof basilar artery and vertebral arteries by transcranial Doppler ultrasonography investigation;The non-correlation was found on the Glasgow Outcome Score to theitems such as headache,febrile,epilepˉsia style,the involvement of cranial nerve,dystaxia,neck stiffness,Cerebrospinal fluid investigation and blood serum enzymology.

结果 入院时的意识状态、GCS、精神症状、偏瘫和/或偏身感觉障碍、巴彬斯基征以及脑电图异常程度、影像学所见的病灶范围、基底动脉和椎动脉的平均峰流速、脉动指数和Glasgow预后评分呈负相关；头痛、发热、癫痫类型、颅神经受累情况、共济运动、脑膜刺激征、脑脊液检查（含压力、蛋白定量、细胞数、HSV-PCR）以及血清酶学的变化和Glasgow预后评分之间无相关性。结论入院时的意识状态、GCS、精神症状、局灶性神经系统体征以及脑电图异常程度、影像学所见的病灶范围、后循环的血管痉挛程度和血流阻力等是影响病脑预后的主要因素。

Results The negative correlations were found on the Glasgow Outcome Scoreto the items such as conscious state at admission,Glasgow Coma Score,psychiatric symptoms,hemiplegia,Babinski sign,abnomal degree of Electroencephalogram,focal lesions found by neuro-image investigation and mean peak flow velocityand pulsatility indexof basilar artery and vertebral arteries by transcranial Doppler ultrasonography investigation;The non-correlation was found on the Glasgow Outcome Score to theitems such as headache,febrile,epilepˉsia style,the involvement of cranial nerve,dystaxia,neck stiffness,Cerebrospinal fluid investigation and blood serum enzymology.

结果 入院时的意识状态、GCS、精神症状、偏瘫和/或偏身感觉障碍、巴彬斯基征以及脑电图异常程度、影像学所见的病灶范围、基底动脉和椎动脉的平均峰流速、脉动指数与Glasgow预后评分呈负相关；头痛、发热、癫痫类型、颅神经受累情况、共济运动、脑膜刺激征、脑脊液检查（含压力、蛋白定量、细胞数、HSV-PCR）以及血清酶学的变化与Glasgow预后评分之间无相关性。结论入院时的意识状态、GCS、精神症状、局灶性神经系统体征以及脑电图异常程度、影像学所见的病灶范围、后循环的血管痉挛程度和血流阻力等是影响病脑预后的主要因素。

However,their echoic characteristics and blood supply are quite different.

结果 前列腺增生、脓肿和癌症三者均可显示前列腺内有结节回声，但结节的回声特点、血流供应情况有所不同。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。