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     By single correlation analysis,it shows that the excretion of TXB2 in urine was significantly positively correlated with systolic blood pressure(SBP,r=0. 22,P<0. 05), but negatively correlated with(SBP,r=-0.25 P<0. 05).
     单因素相关分析结果,儿童血压(收缩压)与尿中TXB2排出量呈正相关(r=0.22,P<0.05)与PGI2的排出量呈负相关(r=-0.25,P<0.05)。
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     When the influent COD and dissolved oxygen concentrations are 10000~12000mg/L and 3mg/L,respectively,and the process pressure is at 300Kpa(Gauge),avvolumetric load of 13.5g(L.d) has been attained and the COD removal over 95.3% has been obtained.
     当进水COD为10000~12000mg/L,反应器的压力为300kPa(表压),保证溶解氧>3mg/L时,COD体积负荷达13.5g/L·d,COD去除率为95.3%。
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     X 3 4 (intraventricular hemorrhage); X 3 3 (medial basal ganglia hemorhage); X 5 2 (preoperative diastolic pressure).
     Y2( 术后舒张压) 与 X3 - 5( 小脑出血) 、 X3 - 4( 出血破入脑室) 、 X3 - 3( 基底节内侧型) 、 X5 - 2( 术前舒张压) 呈正相关。
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     By parent-offspring regression method heritability was estimated at 0. 42 and 0. 48 for systolic and diastolic blood pressure respectively,and 0. 37 and 0. 53 by full-sib correlation method.
     亲子代回归法得出的血压遗传度估计值为0.42(收缩压)和0.48(舒张压),全同胞相关法得出的血压遗传度估计值为0.37(收缩压)和0.53(舒张压)
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     The results show that: in 25 patients, 5cases with normal PAPm (mean pulmonaryarterial pressure), 20 cases PAPm > 2.67KPa. It is clear that increasing of PAPmis negatively correlated with PaO2、SaO2、pHchange and positively correlated with PaCO2and obviously related with PaO2 change.
     结果25例患者PAPm(肺动脉平均压)正常5例,PAPm>2.67KPa20例,并可见PAPm增高与PaO2,SaO2及pH变化呈负相关,与PaCO2变化呈正相关,其中以与PaO2变化的关系最明显。
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     Pore Free Die Casting
     充氧
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     Vapor Pressure of Hexafluoropropylene
     六氟丙烯的蒸汽
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  pressure)
In this article we investigate the asymptotic behavior of and using the dynamical system techniques: the pressure function and the variational principle.
      
An algorithm to calculate the pressure is presented.
      
The reported method1 of their synthesis involves hydrogenation at high temperature and pressure.
      
Invariant of topological pressure under some semi-conjugates
      
In this paper, the topological pressure is preserved under some semi-conjugates, and a formula of computing topological pressure by use of periodic points for positively expansive continuous map with specification is given.
      
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The effect of pressure on photographic sensitivity is discussed on the experimental basis that the quantity E/EC, where E is the illumination actually used when the photographic emulsion is under pressure, and Ee the illumination which would be required to produce the same optical density when the emulsion is under no pressure, is a function of pressure only and that for pressures greater than a certain value, E/Ee becomes a linear function of the pressure.

当照相时,照相片子——映像纸,软片,或玻璃板——被,则其感光性减弱,是为照相的力效应。设E为照相片子在力P下得光密度d所需之光照度,若片子不受力则用光照度E_e即可得此同一之光密度d,故E_e可称在力P下E之有效照度。吾人实验证明E/E_e为力P之函数,当p>200kg/cm~2时,E/E_e与P成正比例。 此照相的力效应,与照相时所用光之颜色,极有关系。黄色光较绿色光为显,绿色光较蓝色光紫色光为显至紫外光则几无此效应。 又此效应之大小,随各种照相片子而不同。就我们所研究的蔡爱斯伊康正色软片,伊司门人像软片,和矮克发等色软片而论,以第一种为最大第二种次之第三种为最小。 这个效应,在实际上,或可有些应用。

~~

本文根据在铅直方向積分了的涡度方程和一个经验式,用高空温场的耩造表示地球转风涡度平流、熟成风涡度平流和温度平流对气倾向的作用,从而得到预报气变化的一些定性的规则。

The principles of obtaining optimum design for R-C coupled pentode ampli- fiers are obatined. It was shown that for small input signals, operation is limit- ed in so small a portion of the characteristic that much smaller than usual grid bias may be used to obtain higher trangconductance, and consequently higher gain; whereas for large input signals,non-linearity of the characteristics limits the maximum output obtainable. Therefore, design should be different for small and for large input signals. After...

The principles of obtaining optimum design for R-C coupled pentode ampli- fiers are obatined. It was shown that for small input signals, operation is limit- ed in so small a portion of the characteristic that much smaller than usual grid bias may be used to obtain higher trangconductance, and consequently higher gain; whereas for large input signals,non-linearity of the characteristics limits the maximum output obtainable. Therefore, design should be different for small and for large input signals. After the load resistance was obtained from other considerations, it was shown how the required optimum voltages on the screen grid and for grid bias can be obtained from the standard characteristic curves of pentodes given in radio tube handbooks. Concrete examples are used in elucidat- ing these principles.

根据几个合理的假定,我们可以用分析方法求得电子注功导管(或五极管)的调幅特性。证明要得到没有畸变的调幅,必须使阳极电、屏栅极电、栅偏和栅极激励用上同时加以调制。所要求的调制方式都是很近于同比例的。实验上,这样的四重调制可以用很简单的线路和不需要任何特殊设备得到。本文也讨论了用这种调制方式的其他优点。

 
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