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transmural pressure
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  “transmural pressure”译为未确定词的双语例句
     Materials and Methods PRAs were dissected off from Wistar rat lungs, mounted as ring preparations and bathed in normal saline, which was gassed with the mixture of 95% O 2 and 5% CO 2. A passive transmural pressure of 17.5mmHg was given, the tensions of the rings were recorded automatically through a force transducer.
     材料与方法 肺阻力动脉从Wistar大鼠肺中分离而得 ,制备成条状浸于生理盐溶液中 ,并供给 95 %O2 /5 %CO2 混合气体。
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     the average transmural pressure of mitral valve decreased from (2 71±1 01) kPa to (1 02±0 56) kPa ( P <0 01);
     二尖瓣跨瓣压差由 (2 7± 1 0 1)kPa降至 (1 0 2± 0 5 6 )kPa(P <0 0 1) ;
短句来源
     RHE0L0GICAL BEHAVIOR 0F PERICADIUM UNDER TRANSMURAL PRESSURE
     心包膜在压力作用下的流变性质
短句来源
     In the process of inflation at a fixed longitudinal stretch ratio, the shear modulus was linear as function of the transmural pressure, circumferential stress and longitudinal stress, and non-linear as function of the circumferential stretch ratio and strain.
     在伸长比一定的充压过程中,剪切弹性模量与透壁压、轴向应力和环向应力呈线性关系,而与环向伸长比和环向应变呈非线性关系。
短句来源
     In the process of elongation at a fixed transmural pressure, the shear modulus was non-linear as function of the longitudinal stretch ratio and strain.
     在透壁压一定的伸长过程中,剪切弹性模量与轴向伸长比、轴向应变呈非线性关系。
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  相似匹配句对
     pressure;
     压力;
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     Peer Pressure
     同龄压力
短句来源
     RHE0L0GICAL BEHAVIOR 0F PERICADIUM UNDER TRANSMURAL PRESSURE
     心包膜在压力作用下的流变性质
短句来源
     Transmural L-type calcium current in a pressure-overloaded mouse model with heart failure
     压力负荷性心衰小鼠左心室跨壁L-型钙电流的变化
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  transmural pressure
It has been proposed that these relationships are based on changes in the amplitude of transmural pressure in arterial vessels.
      
Activation of muscle produces a reduction in values of incremental modulus at almost all values of transmural pressure.
      
There is a rest volume at transmural pressure zero and ΔV/ΔP decreases with increasing transmural pressure.
      
The effects of transient changes in coronary transmural pressure on the coronary vasomotor tone was studied in 23 anesthetized dogs.
      
Increases and decreases of the coronary transmural pressure were obtained by constrictions of various duration (2 to 20 s) of the descending thoracic aorta.
      
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If the transmural pressure of a latex tube containing pulsatile flow is negative, the tube will collapse with its cross-sectional area and moment of inertia decreasing. At first, this paper derived the governing equation of the related problem, that is, the Ma bieu equation with damping and then solved to by the method of strained coordinates in the theory of singular perturbation. It is verified that the periodic change of cross-sectional area and moment of inertia enforces the excitation of the pulsatile...

If the transmural pressure of a latex tube containing pulsatile flow is negative, the tube will collapse with its cross-sectional area and moment of inertia decreasing. At first, this paper derived the governing equation of the related problem, that is, the Ma bieu equation with damping and then solved to by the method of strained coordinates in the theory of singular perturbation. It is verified that the periodic change of cross-sectional area and moment of inertia enforces the excitation of the pulsatile flow and the displacement oscilla-tion of the latex tube occurs easily. This agrees well with the experiment results.

当脉动流经过乳胶管时,如果跨壁压力为负,则乳胶管就被压瘪,其截面积和截面惯距都将减小。本文首先导出了上述问题的控制方程——有阻尼 Mathieu 方程,然后再用摄动法求解。证实了截面积和截面惯距的周期变化加强了脉动流的激励、容易使乳胶管发生位移振荡,这与实验结果在定性上是吻合的。

Since 1979, many cases of paraganliomas in the neck have been successfully treated in Tianjin Cancer Hospital. All patients who would be subjected to this operation should undergo preoperative compressing exer cises of the carotid artery to promote better circulation of collateral cerebral crossflow. Therefore, a reliable and compact instrument is necessary for the compressing exercises of the carotid artery and the long-term ambulatory monitoring of the compressingeffect.This paper introduces our developed...

Since 1979, many cases of paraganliomas in the neck have been successfully treated in Tianjin Cancer Hospital. All patients who would be subjected to this operation should undergo preoperative compressing exer cises of the carotid artery to promote better circulation of collateral cerebral crossflow. Therefore, a reliable and compact instrument is necessary for the compressing exercises of the carotid artery and the long-term ambulatory monitoring of the compressingeffect.This paper introduces our developed instrument, A djustable and digital Carotid compressor, which is based on the principleof .of..e-o.cillo..t.ic method. During the gradual change in cuff pressure, the amplitude of consecutive arterial volume pulsations associated with pulse pressure shows change characteristically due to the nonlinearity of arterial pressure-volume (P--V) relation. Arterial pressure can be determined by detecting this change in the amplitude, while the arterial volume change can be noninvasively obtained as a function of this transmural pressure, provided that the state of blood flow are determined during this pressure measurement.Considering the simplicity and practicability of this instrument I we have designed a new portable one which consists of pulsepresstlre transducer, signal amplifier, peak voltage locking circuit and liquid crystal displayer. The validity and accuracy of this instrument and a few examples of its clinical application are presented.

本文介绍了新近研制的数显便携式颈总动脉压迫器的工作原理、电路设计和调试结果。该仪器增强了患侧颈总动脉切术前施行压迫锻炼改善脑侧支循环的效果并为临床实时监测提供客观数据指标。

Objective:To study the effects of radiographic contrast media (RCM) on the tension of isolated pulmonary resistant arteries (PRA).Materials and Methods: PRAs (small arteries with diameter of 0. 3 ~ 0. 6mm) were dissected off from Wistar rat lungs and mounted as rings preparations bathed in normal saline, which was gassed with 95 % O2 and 5 % CO2. A passive transmural pressure of 17. 5mmHg was added and the tension of the rings was recorded automatically using a force transducer. The following experiments...

Objective:To study the effects of radiographic contrast media (RCM) on the tension of isolated pulmonary resistant arteries (PRA).Materials and Methods: PRAs (small arteries with diameter of 0. 3 ~ 0. 6mm) were dissected off from Wistar rat lungs and mounted as rings preparations bathed in normal saline, which was gassed with 95 % O2 and 5 % CO2. A passive transmural pressure of 17. 5mmHg was added and the tension of the rings was recorded automatically using a force transducer. The following experiments were Conducted: (1) Arterial rings bathed in normalsaline were exposed to Diatrizoate, Ioxaglate, Iopromide and Iotrolan with various concentration (10, 20, 40, 80, 150, 200, and 250mgI/ml) and totheir osmolar-controlled solutions of mannitol for 20min. The change of tension was observed. (2) Arterial rings, which were bathed in normal salineand Pre-constricted by 1O-5mol/L or 1O-4mol/L PGF2α, were exposed to 80mgI/ml of above listed RCM and mannitol control Solutions for 20 minutes. (3) Arterial rings, which were bathed in normal saline, were exposed to 250mgI/ml of above listed RCM and their mannitol control solutionsfor 2 minutes. After being tested with each RCM, the rings were washed with normal saline, then left to relax to base tension. Results: (1 ) All tested RCM caused biphasic change of tension of artery rings, with initial temporal Phase of dilatation and followed by a sustained phase of constriction.The mannitol control solutions caused only a vasoconstriction. (2) The magnitude of vasoconstriction effects was dose and RCM dependent in the fol-lowing orders: Diatrizoate > Iopromide > Ioxaglate > Iotrolan. Diatrizoate reached its peak response at 40mgI/ml, Iopromide at 80mgI/ml,Ioxaglate at 150mgI/ml, and Iotrolan at 200mgI/ml. At higher doses their vasoconstriction effects started to decrease. (3) The biphasic responses ofartery rings to RCM were reproduced when Pre-constricted by PGF2α, the dilatation response was more apparent, the largest vasodilatation was ob-served with Ioxaglate and the smallest vasodilatation was seen with Iotrolan. Mannitol solutions caused only a vasoconstriction. (4) A rebound vaso-constriction was observed when the bath solution changed to pure normal saline after 2 minutes exposure to 250mgI/ml Diatrizoate. The vasoconstric-tion lasted for about 20 minutes before it retumed to base line. This response was not apparent with the other RCM, but it was observed with saturatedmannitol solutions. Conclusion: RCM can induce alterations of the tension of isolated resistant pulmonary arteries, Diatrizoate is the most vasoactiveagent, and Iotrolan is the least vasoactive agent. The vasorelaxant property of RCM is not dependent on their high osmolarity.

目的:观察X线造影剂(radiographiccontrastmedia,RCM)对肺阻力血管(直径0.3~0.6mm的微动脉)张力的影响。材料与方法:肺阻力动脉从Wistar大鼠肺中分离而得,制备成条状浸于生理盐溶液(Phsiologiocalsaltsolution,PSS)中,并供给95%O2/5%CO2的混合气体。动脉条给予17.5mmHg被动跨壁压力,动脉条的张力通过力传感仪自动记录。实验包括下述部分:(1)浸于PSS中的动脉条暴露于各种浓度(10、20、40、80、150、200、250mgI/ml)的RCM及其甘露醇渗透压对照溶液中20分钟,观察动脉条的张力改变,RCM包括Diatrizoate,Ioxaglate、Iopromide及4种;(2)浸于PSS中的动脉条先由前列腺素F2α引起收缩,再暴露于80mgI/ml上述RCM及其甘露醇对照溶液中20分钟,观察动脉条的张力改变;(3)浸于PSS中的动脉条暴露于250mgI/ml上述RCM及其甘露醇对照溶液2分钟后即将血管槽内溶液再换成RSS,观察动脉条的张力改变。结果:(1)所有RCM均引起动脉条张力的观相性改变,包括初始短暂的舒张相和随后持续...

目的:观察X线造影剂(radiographiccontrastmedia,RCM)对肺阻力血管(直径0.3~0.6mm的微动脉)张力的影响。材料与方法:肺阻力动脉从Wistar大鼠肺中分离而得,制备成条状浸于生理盐溶液(Phsiologiocalsaltsolution,PSS)中,并供给95%O2/5%CO2的混合气体。动脉条给予17.5mmHg被动跨壁压力,动脉条的张力通过力传感仪自动记录。实验包括下述部分:(1)浸于PSS中的动脉条暴露于各种浓度(10、20、40、80、150、200、250mgI/ml)的RCM及其甘露醇渗透压对照溶液中20分钟,观察动脉条的张力改变,RCM包括Diatrizoate,Ioxaglate、Iopromide及4种;(2)浸于PSS中的动脉条先由前列腺素F2α引起收缩,再暴露于80mgI/ml上述RCM及其甘露醇对照溶液中20分钟,观察动脉条的张力改变;(3)浸于PSS中的动脉条暴露于250mgI/ml上述RCM及其甘露醇对照溶液2分钟后即将血管槽内溶液再换成RSS,观察动脉条的张力改变。结果:(1)所有RCM均引起动脉条张力的观相性改变,包括初始短暂的舒张相和随后持续的收缩相,甘露醇溶液只引起收缩相;(2)RCM的血管收缩效果与其种类和浓度有关,Diatrizoate>Io-promide>Ioxaglate>Iotrolan,Diatrizoate在40mgI/ml时其收缩作用最强,Iopromide在150mnI/ml时最强?

 
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