pi point
英 [paɪ pɔɪnt]
美 [paɪ pɔɪnt]
【电】π点
双语例句
- And therefore the period which is two pi divided by omega equals two pi times the square root moment of inertia about point P divided by kappa.
所以周期为-，2π/ω，等于2π乘以点P转动，惯量除以K开平方根。 - The improvement of the penetration index ( PI) and equivalent weight softening point ( T_ ( 800)) show that diatomite-modified-asphalt is good in temperature susceptibility and being enhanced in high-temperature stability.
硅改沥青的针入度指数（PI）和当量软化点（T800）的提高，说明硅改沥青的感温性很好，高温稳定进一步加强。 - Methods By using TCD breath-holding test Vm, PI were measured in 20 healthy subjects at different time point and BHI,Δ PI% were calculated.
方法应用TCD对20名健康志愿者进行屏气试验，在不同时点观察其Vm、PI值，并测定BHI、ΔPI%。 - The isoelectric point was estimated to be 4.2 by IEF-PAGE.
其等电点pI为4.2； - High concentration, pI and low temperature result to higher gelling point, shorter gelling time and higher gel strength.
明胶浓度越高、pH值越接近等电点、胶凝温度和熔化温度越高，胶凝时间越短，同时形成的凝胶网络的弹性和凝胶强度大； - The dynamic and static performance index is greatly improved through decreasing quantization errors and combining with PI controller that operate nearby set point.
同时，通过削弱量化误差以及在设定点附近引入PI补偿控制器，提高了系统的动态、静态性能指标。 - Cao Pi's view point of literature related closely with contemporary social culture background.
曹丕的这种文学观，与当时的文化背景有密切联系。 - In this paper, PI Method has been detailedly introduced and point out some attentive problem.
本文主要对PI方法进行了较详细的介绍，并指出应用该方法时应注意的问题。 - The isoelectric point was 4.8 by isoelectric focusing. The absorption and fluorescence spectrum of PC were similar to regular reports.
等电聚焦证明其等电点（pI）为4.8.吸收光谱及荧光光谱同已有报道。 - The supervisory information system ( SIS) and its database platform PI ( plant information) real-time database, data flow and point building technology in PI database are introduced.
介绍了厂级监控信息系统（SIS）及其数据库平台PI实时数据库、PI数据库中的数据流程以及PI数据库的建点技术。 - Application of real-time database PI in Jinan Refinery is expounded together with the system structure, software design and the key point of implementation.
系统介绍了实时数据库PI在济南炼油厂的应用，详细说明了系统的结构、软件设计及实施要点。 - 3) no change of isoelectric point ( pI).
3）等电点（pI）一致； - The isoelectric point ( pI) of the recombinant protein was determined by isoelectric focus electrophoresis.
用三维试验检测重组菌产β-内酰胺酶的表型，等电聚焦电泳测定其表达蛋白的等电点（pI）。 - It proposes using the flex point position on the PI value curve of the multi-time PI decision as the best opportunity for deep profile modification and profile modification plus oil displacement.
首次提出了利用多次PI决策方法，把PI值变化曲线的拐点位置作为深部调剖、调驱最佳时机的观点。 - Study on Point Building Technology in PI Database
PI数据库中建点技术的研究 - Penetration Index ( PI) was used to evaluate the temperature sensitivity of modified asphalts, equivalent softening point, equivalent fraass breaking point, ductility ( 4 ℃) were used to evaluate high temperature stability and low temperature stability of modified asphalts, respectively.
利用针入度指数法评价了改性沥青的感温性，采用当量软化点、当量脆点、4℃延度评价了改性沥青的高温稳定性和低温稳定性。 - The thesis adopts PI controller and presents an efficient non-convex optimization based method for designing PI controllers. The design is based on optimization of load disturbance rejection with constraints on sensitivity and overshoot of set point response.
本文采用PI协调控制器，给出了基于非凸优化的PI控制器设计的有效方法，在灵敏度和设定值响应的超调受限的情况下，控制器的设计方法对抗负载干扰进行优化。 - In 2004 we had initially performed PH3-10 gradient 2-DE of chronic sinusitis, nasal polyps and normal nasal mucosa tissue, and found isoelectric point ( PI) of most proteins is between PH 4-8.
在前期研究中，我们在国内外领先进行了慢性鼻窦炎、鼻息肉和正常鼻粘膜组织的PH3-10差异蛋白质组研究，发现大多数蛋白质的等电点（PI）在PH4～8的范围。 - At last, point out the advantages and disadvantages of the controller design and future research directions.
最后结合分数阶PIαDβ控制器的发展趋势指出该控制器设计的优缺点以及今后的研究方向。 - The amplitude and frequency of the limit cycle are then used to identify the system critical point. Based on Ziegler-Nichols formula, initial PI parameters will be obtained.
根据极限环的信息，可以辨识得到系统的临界增益和周期，然后利用Ziegler-Nichols公式对PI参数进行整定。