驻极体

By controlling the process of sol gel, the charge storage stability of porous silica thin film electret based on silicon substrate were investigated by measurements of IR spectra, isothermal surface potential decay and current spectra of open circuit Thermally Stimulated Discharge.

通过控制溶胶凝胶工艺条件，利用相应条件下样品的红外光谱，等温表面电位衰减，开路热刺激放电电流谱等，考察了Si基多孔SiO2 薄膜驻极体体内沉积的空间电荷的储存稳定性，分析了各种工艺参数与薄膜驻极体性质之间的联系。

According to ecumenic air filtration material appraised quality criterion and the characters of electret air filtration material , this paper discusses the qppraising criterion of the electret air filtration material .

本文从一般空气过滤材料的质量评价指标出发，结合驻极体空气滤材的特点，初步探讨了驻极体空气滤材的质量评价指标。

According to ecumenic air filtration material appraised quality criterion and the characters of electret air filtration material the appraising criterion of the electret air filtration material is discussed .

从一般空气过滤材料的质量评价指标出发，结合驻极体空气滤材的特点，探讨了驻极体空气滤材应有的质量评价指标。

The study aims to synthesize a new denture base material to complemete the electret of teeth-extracted alveolar bone and stimulate bone growth towards the denture base when masticating and inhibit or rimit the RRR.

本课题研制新型改性义齿基托，在修复牙列缺损或缺失时通过驻极体效应和压电效应，补充患者失牙区局部驻极态的丧失，利用咀嚼运动产生的微电流刺激骨向基托方向定向生长，抵御或缓解牙槽骨的吸收。

To analyze the influencing factors in a more systematical and effective manner, we put forward an optimized design for in vitro experiment with electret transdermal patches.

为了更系统和有效地分析各因素之间的影响，本文根据驻极体透皮贴剂的研究目标，提出驻极体透皮贴剂的体外实验的优化方案。

Methods: Fibroblast cell were treated with -300,-500 and -1 000V PTFE electrets for 24, 48 and 72 h, respectively, and the influence of negative electrets on cell apoptosis was studied by means of flow cytometry and transmission electron microscope.

选用-300、-500和-1 000 V PTFE驻极体作用于成纤维细胞24、48和72 h，利用流式细胞仪和透射电子显微镜研究负极性驻极体对成纤维细胞凋亡的影响。

Objective: To evaluate the effects of charged surfaces on the activity of bone marrow stromal osteoblasts, and to discover the osteogenic potential of electrets of different surface charges.

目的 研究驻极体产生之静电场对骨髓基质成骨细胞形态及功能的影响，初步探索利用驻极体引导骨定向生长的可能性。

Objective: To study the changes of intracellular free Ca2+ levels in 3T3 cells induced by electrets and discuss the relationship between electrets induced apoptosis of 3T3 cells and the changes of free Ca2+ levels.

目的：研究驻极体对3T3细胞内游离Ca2+浓度变化的影响，探讨驻极体诱导3T3细胞凋亡与游离Ca2+浓度变化之间的关系。

The piezoelectric activities of the porous PTFE electrets mainly depended on the charge storage ability of the electrets themselves.

研究结果指出：(1)常温下，多孔PTFE驻极体的准静态压电系数d33随充电时间的延长而增加，并呈现出线性区、非线性区和饱和区三个区间，多孔PTFE驻极体的压电活性主要依赖于这类材料的电荷储存能力。

Results:（1）After the action of electrets, 10%of 3T3 cells appeared apoptosis.(2) After the action of electrets in 3T3 cells, the free Ca2+ levels in cellular plasm were increased. The increasement of Ca2+ levels was caused by the Ca2+ inflow from outside cell, rather than the release of calcium pool inside cell.

结果：(1)负极性驻极体作用3T3细胞后，3T3细胞出现10％的凋亡量；(2)驻极体作用3T3细胞以后，细胞质游离Ca2+浓度升高，Ca2+浓度的升高不是由于细胞内钙池的释放，而是由于细胞外Ca2+内流所引起。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。