a multi-tenant, efficient saas application has several security requirements including

1、

resource delegation platform resolves data security via two aspects, that is, data security based saas and data security under resources delegation. platform ensures data security through user-data isolation and method of privilege-control-access. 3.

论文从SaaS模式下的数据安全和托管环境中的数据安全两个方面解决资源托管平台中的数据安全问题，通过用户数据隔离方法和权限控制访问保证数据的安全。

互联网摘选

2、

dura-32 zirconia toughened alumina ( zta) bead was sintered from alumina powder and zirconium silicate powder.

复合锆珠由硅酸锆和氧化铝粉经特别的工艺烧结复合而成。

互联网摘选

3、

the paper studies the erosion behavior of two groups of toughened ceramics, zta and tzp, at the ambient temperature, 320 and 500 c respectively.

本文研究了在室温、320℃、500℃等三种温度下两类陶瓷（氧化锆增韧氧化铝陶瓷，ZTA，与四方氧化锆多晶陶瓷，TZP）的冲蚀性能。

互联网摘选

4、

the observation of friction surface and bending fractured surfaces by means of sem shows that wear failure mechanism of zta ceramics belongs to brittle fracture mechanism.

扫描电镜对摩擦表面和抗弯断口的对比观测表明，ZrO2增韧Al2O3陶瓷磨损破坏机理属于一次性脆性断裂机理。

互联网摘选

5、

toughness and strength can be increased by means of martensite phase transformation in zro_2, therefore abrasive wear resistance of zta will be possibly improved.

利用ZrO2的马氏体相变，可望提高陶瓷的韧性和强度，故可望提高Al2O3基陶瓷的耐磨性。

互联网摘选

6、

fine grain, low porosity with uniformity microstructure, and the high hardness and high fracture toughness can improve the wear resistance of the zta composite materials.

显微结构以及硬度和断裂韧性共同影响ZTA复合材料磨擦磨损性能。晶粒细小均匀，气孔率低，晶间结合致密以及高硬度和高断裂韧性均能提高复合材料的耐磨性能。

互联网摘选

7、

therefore, the removal mechanism of no-elastic deformation in ultrasonic elliptic vibration grinding of zta ceramics had important influence on the surface integrity.

普通磨削和超声椭圆振动磨削的表面上都观察不到非晶相。试验结果表明，ZTA的非弹性变形去除对表面完整性有重要影响。

互联网摘选

8、

based on the design of compound microstructure and complex strengthened toughness, al2o3 and zta ceramics were prepared using self-made ultrafine powders.

本实验以复合显微组织设计和复合强韧化设计为基础利用自制超细粉末制备Al2O3和ZTA陶瓷。

互联网摘选

9、

objective: to evaluate clinical efficacy and safety of zhong tong an ( zta) on treating acute adult periodontitis.

目的：评价肿痛安治疗牙周炎的临床疗效与安全性。

互联网摘选

10、

effect of rare-earth phosphates ( cepo_4) on machinability of zta ceramics

稀土磷酸盐（CePO4）对ZTA陶瓷加工性能的影响

互联网摘选

11、

while with the increase in sintering temperature, the density, mechanical properties of zta/ bn composite ceramics are significantly improved.

而随烧结温度的提高，ZTA/BN复相陶瓷材料的致密度、力学性能均得到大幅度的提高。

互联网摘选

12、

study of zta and al_2o_3 orthodontic brackets

ZTA和Al2O3正畸托槽的研究

互联网摘选

13、

zta ceramics was phase transformation toughening.

ZTA陶瓷以相变增韧为主。

互联网摘选

14、

the mechanical properties of zta ceramics

ZTA陶瓷材料的力学性能

互联网摘选

15、

processes affecting microwave sintering of zta ceramics

影响ZTA陶瓷微波烧结的主要工艺过程

互联网摘选

16、

sintering property analysis of zta ( sio_2) ceramics prepared by vacuum gel-casting

真空凝胶注模成型ZTA（含SiO2）陶瓷的烧结性能分析

互联网摘选

17、

progress of the study on zta dentistry ceramic composites powders

牙科ZTA陶瓷复合粉体的研究进展

互联网摘选

18、

mechanical preparation of ultra-fine powder of alumina and its application in zta ceramic

机械法制备超细氧化铝粉体及其在ZTA陶瓷上的应用

互联网摘选

19、

study on the compaction law of zta ceramic powders

ZTA陶瓷粉末压形规律的研究

互联网摘选

20、

effect of rare earth oxides on the corrosion resistance of zta ceramics to steel

稀土氧化物对ZTA陶瓷抗钢液腐蚀性能的影响

互联网摘选