| 1. | High piezoelectric constant and dielectric constant piezoelectric ceramic grain which used as functional element were selected , and mixed with polymers in 60 - 70 % volume percent 选择具有高的压电常数和介电常数的压电陶瓷颗粒作为功能相,并以60 70体积分数与聚合物共混。 |
| 2. | Discusses its different volume percent the compound material to the electromagnetic wave absorption effect electromagnetic wave camouflage effect and to the electromagnetic wave absorption and the camouflage frequency width influence 探讨其不同体积百分比的复合材对电磁波吸收效果电磁波遮蔽效果及对电磁波吸收和遮蔽频宽的影响。 |
| 3. | This experiment uses the different volume percent the aluminum oxide powder with unsaturated polyester resin mix manufacture aluminum oxide compound level , causes it to become multilayered the compound material to protect the curtain 摘要本实验使用不同体积百分比的氧化铝粉末与不饱合树酯混合制作氧化铝复合层,使之成为多层的复合材护幕。 |
| 4. | Investigation of the piezoelectric performance for piezoelectric ceramic / polymer composites has been carried out . the results showed that different volume percent of piezoelectric ceramic influence the piezoelectric performance of composite system greatly 研究了压电陶瓷/聚合物复合材料的压电性能,发现不同压电陶瓷以及压电陶瓷的体积分数对复合体系的压电性能影响极大。 |
| 5. | The relationship of the heat transfer coefficient with tea liquid concentration , heat transfer different temperature , vapor temperature , liquid flow rate , particle volume percent and different particle were studied . and analyzed the effect of liquid flow rate , particle volume percent on pressure drop . based on the character of inert particle fluidized bed evaporator , used the theorem , a mathematical model of inert particle fluidized bed evaporator heat transfer was proposed 设计和建立了惰性粒子流化床蒸发实验装置,进行了传热性能和流体力学的理论分析和实验研究;研究了物料浓度c _ e 、传热温差t 、蒸发温度t _ v 、液体流量i 、惰性粒子体积分率_ s等操作参数对流化床蒸发器传热性能的影响,文中还分析了液体流量i 、惰性粒子体积分率_ s等参数对床层压力降的影响。 |
| 6. | Polymer - based uf / sio2 composite microspheres are obtained in the solution . the effects of formaldehyde / urea molar ratio ( r ) , ph value , ethanol volume percent amount ( ve ) and reaction temperature on the resulting microspheres have been investigated with scanning electron microscopy ( sem ) and optical microscope 通过扫描电镜( sem ) 、光学显微镜研究了各种反应条件如甲醛尿素配比r 、乙醇的含量v _ e 、 ph值、反应温度等对脲醛二氧化硅复合微球颗粒大小和形貌的影响。 |
| 7. | The curve of dynamic modulus versus the conductive filler volume percent showed that the dynamic modulus of the composites changed with increase of the filler volume percent and exhibited a transition phenomenon . it is believed that these results mentioned above were related to the filler dispersion and the interaction between filler and polymer 通过研究动态流变行为对导电填料含量的依赖性,发现导电填料含量增浙江大学硕士学位论文加,体系的动态模量存在一转变现象,被认为与颗粒在聚合物中的分散、填料与聚合物间相互作用密切相关。 |