ppf

Application of the Method Combining PPF and PD in Active Vibration Control

主动振动控制中PPF+PD的应用

PPF control is named as Prediction Position Feedback control .

PPF控制的全称是预测位置反馈。

Intellectual PPF Control System in Rectifying Strip Steel Deviation

带钢纠偏智能PPF控制系统

Clinical observation on the treatment of 30 cases of advanced esophageal carcinoma with PPF chemotherapy

PPF方案治疗晚期食管癌30例疗效观察

Effects of PPF and DIF on Growth of Potato in Vitro

光通量和温差对马铃薯试管苗生长的影响

Study on Surface Structure of Polypropylene Fibres ( PPF ) Exposed to Plasma by XPS

等离子体改性聚丙烯纤维表面的XPS研究

A complete process of iron and phosphate releasing from the PPF is observed using electron spectra technique .

选用电子光谱技术研究PPF释放铁和磷酸盐全过程，发现PPF以两种不同速率途径释放铁与磷酸盐。

The concentrations of redox agents used did not affect the basic synaptic transmission and PPF .

在这些氧化还原剂所用的浓度下，这些药物对突触的基础传递和双波易化都没有影响。

Soak PPF polymer to PBS , test the change of mass and biomechanics .

将PPF交联后浸泡于PBS。检测体外降解时质量和力学强度的变化。

Synthesis and Application of PPF

PPF的合成及应用

RESULTS The separation of the PPF enantiomers and I. S. was proved to be highly satisfactory .

结果：实验表明，R－PPF与S－PPF的分离度好。

Based on a bandwidth insulation method , a positive position feedback ( PPF ) active vibration controller for the flexible structure is designed .

利用频带隔离思想，设计了柔性结构的正位置反馈（Positivepositionfeedback，PPF）振动主动控制器。

Objective : to discuss the CT characteristics of the pathological changes involved the pterygopalatine fossa ( PPF ) .

目的：探讨翼腭窝区病变的CT表现特点。

Materials and Method : CT imaging ( axial and coronal ) of 26 patients with lesions affected PPF were collected .

资料与方法：26例翼腭窝区病变的病人皆行CT冠状和横断扫描，所得影像资料与其病理结果相对照进行分析。

Conclusion Exogenous NGF and PPF caused an increase of M-acetylcholine receptor in brain of aged rats .

结论外源性NGF和PPF可使老年大鼠脑组织中M受体的数量增多，进而改善中枢胆碱能系统的功能。

Every faithful ideal of PPF ring is a progenerator .

PPF环的每个忠实理想是一个progenerator；

This paper presented an experimental study on a positive position feedback ( PPF ) control of a cantilevered flexible beam using PZT patches .

利用压电陶瓷传感器得到的反馈信号，通过正位反馈算法计算出控制信号。

The effect of PPF and DIF on plantlet growth of potato in vitro under photoautotrophic condition was investigated .

试验研究了光通量和昼夜温差对自养培养马铃薯试管苗生长的影响。

AIM : To investigate the stereoselective metabolism of propafenone ( PPF ) by human liver CYP3A4 .

目的：研究普罗帕酮（PPF）经人肝CYP3A4代谢的立体选择性。

On the basis of installed PPF , connecting active power filter to PPF by small inductor , a hybrid active power filter was designed .

在已安装无源滤波器的基础上，将有源滤波器通过小电感与无源滤波器相连，设计了混合有源滤波器。

Besides of basic resonance condition , each adaptable function is given of investment , the capacity of reactive power compensation and the harmonic distortion of PPF .

在考虑滤波器基本谐振条件之外，还结合滤波器的成本、无功补偿和滤波效果的实际分别提出了各自的适应度函数。

Conclusion : PPF diseases were mainly caused by secondary tumors , which could be commonly seen in nasopharyngeal carcinoma and the carcinoma of maxillary sinus .

结论：PPF病变以肿瘤为主，鼻咽及上颌窦癌最常见；

Discussion on the Mechanism of the Modification PPF Influencing the Compressive Strength of the Concrete BAI Guo-qing , DONG Jian-wei

改性聚丙烯纤维影响混凝土抗压强度的机理初探

Industrial experiment show : Based on fuzzy PPF control , two types of signal detecting systems can entirely cooperate for fulfilling rectification , and improve the reliability of real-time control considerably .

工业试验证明：模糊PPF控制下两种信号检测系统完全可以配合完成纠偏任务，能够大大提高现场控制的可靠性。

Objective : To study the medial attachment point of the posterior renal fascia ( PPF ) and the medial border of the posterior pararenal space .

目的：研究肾后筋膜的内侧附着点和肾旁后间隙的内侧边界。

There were 71 cases of tumor ( 69 cases of secondary tumor ) in 79 cases of PPF lesion , and 62 cases of secondary malignant tumor from the secondary tumors .

79例病变中肿瘤71例（继发肿瘤69例），其中继发恶性肿瘤62例，浸润性破坏骨壁，直接或间接侵犯PPF，边界不清。

Effects of polypropylene fiber ( PPF ) on properties of phosphate cement-based concrete , such as flowability , operable time , flexural and compressive strength were investigated .

主要研究了聚丙烯纤维（PPF）对磷酸盐混凝土性能如流动性、可操作时间、抗折和抗压强度的影响。

Draw the PPF curve , relative price ratio curve and indifference curve for this country , and then identify its export and import on the diagram . ( 5 points )

画出这个国家的生产可能曲线，相对价格比率曲线和无差异曲线，然后在图上标出它的出口和进口。

Therefore , Passive power filter ( PPF ) is most widely used as harmonic-eliminating device in power system , because of simple configuration , low investment , high reliability , and low operation cost .

无源电力滤波器因其结构简单、设备投资少、运行可靠性高、运行费用低，成为电力系统中最普遍的谐波抑制设备。

Objective To synthesis injectable degradable biomaterial poly ( propylene fumarate ), PPF and detect its crosslinking temperature , time , biomechanics and in vitro degradation properties .

目的合成新型可注射性生物降解材料聚丙烯延胡索酸酯[poly（propylenefumarate），PPF]，检测其交联温度、交联时间、生物力学性能和体外降解过程。