查询词典 material particle

Abstract］ Objective To Treating the nano-SiO2 particle by silicon coupling reagent, functionalize the SiO2 by making double bond on its surface. Polymerizing on the surface of nano-SiO2 surface by the method called emulsion polymerization, the nano-SiO2 is covered by polymer to get the PMMA-KH-570-nano-SiO2 complex material. Test the surface structure of the surface of nano-SiO2 by FTIR, and test sort of its mechanical performances.Comparing the treated nano-SiO2 which is directly dispended in the PMMA emulsion with the SiO2 without any treatment, we are trying to find an effective method which can not only increase the dispersion of SiO2, but also improve the mechanical performance of the artificial teeth.

目的 通过硅烷偶联剂KH-570处理SiO2纳米粒子，向其表面引入双键使其功能化，采用乳液聚合的方法在SiO2纳米粒子表面进行接枝聚合，实现高分子对SiO2纳米粒子的表面包覆处理，制得PMMA－KH-570－SiO2纳米复合材料，采用FTIR对SiO2纳米粒子表面结构进行了表征研究，并且测定了它的多种机械性能，与表面处理过的SiO2纳米粒子直接分散至PMMA乳液中制得的复合材料、未添加任何增强物质的空白组进行比较，探索一种能够提高SiO2在基体中的分散性，为义齿复合材料的研究和开发提供理论依据和参考。

Using manganous sulfate(MnSO4) as raw material,ammonium hydrogen carbonate(NH4HCO3) as precipitating agent and sodium dodecyl sulfate as particle size controller and through the process of quick addition of MnSO4 and NH4HCO3 solutions at same time,monodisperse submicron manganous carbonate(MnCO3) spherical particles were prepared by controlling suitable reaction crystallization conditions.

以硫酸锰为锰源，碳酸氢铵为沉淀剂，十二烷基硫酸钠为粒径控制剂，采用硫酸锰和碳酸氢铵两种溶液快速同时加入的方式，通过控制合适的反应结晶条件，制备出亚微米级单分散球形碳酸锰颗粒。借助扫描电镜、X射线衍射、粒度分析仪等研究了反应结晶条件对碳酸锰粒径和形貌的影响。

In the extracting process using ultrasonic wave, the preferable technical parameters of extracting polyphenols from the root and stalk of sanguisorba were acquired by changing the particle size of raw material, the ratio of sample weight to solvent volume, ultrasonic time, ultrasonic power, ultrasonic times.

在超声波法浸提过程中，通过调节料液比、原料粒度、超声时间、超声功率、超声次数因素的影响，确定了地榆根和茎中多酚较佳超声浸提工艺参数。

In lixiviating process, the preferable technical parameters of extracting tannis, flavone and oligoprocyanidins from the root and stalk of sanguisorba were obtained through changing the concentration of ethanol, particle size of raw material, the ratio of sample weight to solvent volume, the reflux temperature, extracting time and reflux times.

在常规浸提过程中，通过调节乙醇浓度、原料粒度、料液比、回流温度、回流时间、回流次数因素的影响，确定了地榆根和茎中鞣质、黄酮类、低聚原花青素较佳浸提工艺参数。

Heavy Scintillator PbWO〓 is the scintillating material to be used in the new generation of particle physics experiments at the large hadron collider in CERN. The scintillant properties of PbWO〓 are very sensitive to its structure.

重闪烁体PbWO〓是用于欧洲核子中心正在建造的大型强子对撞机LHC上的紧凑型μ子螺线管探测器的探测材料，它的发光性质和其微结构有着密切的关系。

Current dominant techniques about rendering and modeling are involved and implemented in this platform, including real time shadow, high dynamic range material, large-scale terrain rendering and management, GPU based particle system, swingable tree and the real time rendering of tens of millions of surfaces.

实时真实感图形生成是计算机科学技术的重要研究方向，目标是使得计算机可以产生与真实世界相同或高度近似的视觉环境，从而使用户获得身临其境的视觉感受[13]。

Plus Bathroom Cleaner attacks the carbonate-based material, which dissolves, effervesces and undergoes particle breakdown as the reaction progresses.

碱性物质与灵验浴室清洁剂产生反应而溶解、化成泡沬，令微粒分解，证明有效起清沐浴清洁剂的碱性沉积物。

The invention is characterized by the positive electrode material in which plural primary particles are flocculated and a secondary particle is formed, and the touch length of the primary particles is equivalent to 10 to 70% of the length of the whole periphery on the section of the touched primary particles.

该正极材料的特征在于：多个一次粒子凝聚而形成二次粒子，在该二次粒子的断面中，相对于上述一次粒子在上述断面中的全周的长度，上述一次粒子相互结合的长度为10-70％。

The influences of several technical factors including material and cleaning condition of can, outgassed conditions of canned powder, size of as-HIPed compact, particle size distributions of powder and HIPing temperature on the qualities of as-HIPed FGH95 alloy compacts were studied in this paper.

FGH95合金；工艺因素；热等静压；本文研究了若干工艺因素：包套材质及其表面清理情况、包套内粉末的除气条件、热等静压锭坯尺寸及所用的粉末粒度组成和热等静压温度对FGH95合金压坯质量的影响。

The present invention discloses nanometer composite polyester material prepared through polymerizing monomer 1, monomer 2 and nanometer particle.

本发明公开的聚酯纳米复合材料是将合成聚酯的单体1和单体2以及纳米粒子的前驱体一起聚合反应而成。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。