• 物质溶剂中的溶解度对纳米颗粒制备存在影响,较的溶解度有利于制备小粒度团聚颗粒化度好的粉体材料;

    The solubility of substance in non-solvent effect on the preparation, the lower solubility is helpful to obtain lower size, weak aggregation, spherical particles.

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  • 博士团队针对不同形状纳米颗粒做了实验发现一个简单一步到位方法采用聚苯乙烯,先经氧气处理然后再硅石,便会形成树莓形状的颗粒

    Dr He's team experimented with different shapes and found a simple one-step method using polystyrene spheres treated with oxygen and then coated with silica to build raspberry-like shapes.

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  • 得的颗粒多孔、速溶、真表面光泽度好、致密性不易破碎

    The prepared granule is porous and can solve quickly, with high sphericity coeficient, good surface luster, certain intensity and is not easy to break.

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  • 结果发现时间混合粉末的结构颗粒形貌存在显著影响

    The results show that the milling time has significant effect on the powder structure and particle configuration.

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  • 用示踪颗粒玻璃槽中的低速流动进行实验研究。

    The flow of fine glass beads at low velocity in an inclined chute was investigated by means of tracer particles.

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  • 还有颗粒结构

    The photosphere has a granular structure.

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  • 采用模型描述颗粒间的碰撞作用。

    The hard sphere model was used to describe inter-particle collisions.

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  • 几种机理从不同的角度说明高能磨中,粉末颗粒之间相互作用发生的反应方式的复杂性

    At the same time, these mechanisms showed the complexity about powders interaction in the high energy ball-milling.

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  • 采用扫描电镜对高炉矿渣粉体磨高炉矿渣粉体颗粒形貌进行观察

    Granule morphology of granulated blast furnace slag powders prepared with vertical mill (GBFS-V) and close circuit ball mill (GBFS-B) respectively were observed with SEM.

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  • 目的研究托西舒他西林明胶颗粒制备质量控制

    OBJECTIVE to study the preparation of sultamicillin tosilate gelatin microspheres granules and its quality control.

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  • 落下强度大小体现固体颗粒联接作用的强弱。

    The drop number reflects the shear resistance property of liquid bridge between solid particles.

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  • 结果表明机械磨方法有效地使木薯淀粉颗粒微细化

    The results showed that tapioca starch granules can be effectively micronized by ball milling.

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  • 模拟结果反映颗粒接触烧结生长气孔微观过程

    The simulation results reflect the microscopic process such as grain contact, sintering neck growth and pore spheroidization.

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  • 结果表明:名义尺寸相同而实际尺寸相差较大所磨出的粉体粒度分布均匀烧结硬质颗粒粗大且等轴性差,抗弯强度和硬度均低。

    It is found that the grain size of the powders milled by balls with different diameters is big, the hard phase is big too and not uniform, the hardness and bending strength are also lower.

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  • 扫描电镜激光粒度分析仪研究了立式生产矿渣颗粒形貌颗粒分布

    The appearances and particle size distribution of slag micro-powder produced by ball mill and vertical mill were researched with scanning electron microscope and laser particle size analyzer.

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  • 采用高能法混料低温快速挤压工艺相结合,实现增强体颗粒均匀分布有效方法

    The results indicate that high energy ball milling together with low temperature quick hot extrusion is the most effective method for obtaining homogenous distribution of reinforcers.

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  • 采用高能机械法制备了金属分析了铁、钨粉末产品粒度分布特性、表面积变化情况颗粒形貌

    The powder of iron and tungsten are prepared by using high energy mechanical ball mill. The size distribution, specific surface area and grain shape of iron and tungsten powder are analysised.

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  • 悬浮液中的胶体在一定条件下能够自组装成二维胶体晶体,以此为膜可合成纳米颗粒阵列体系,颗粒形状尺寸以及间距等参数易于控制

    In the nanoparticle array synthesized by taking the colloid crystal as the lithography mask, the shapes, sizes, spacing and even compositions of the particles can be controlled easily.

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  • 综述无机粉末石墨粉末、陶瓷粉末、铝粉金刚石颗粒空心玻璃等材料化学镀研究发展趋势

    Electroless nickel plating process and its study trends on inorganic powder such as graphite powder, ceramic powder, aluminum powder, diamond, hollow glass microsphere were reviewed.

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  • 但随着时间延长颗粒粒径的减小速率逐渐降低。

    As the grinding time is prolonged, the rate of size reduction decreases gradually.

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  • 研究高能法制纳米复合粉末主要影响因素通过扫描电镜透射电镜分析粉末形貌颗粒尺寸

    The main influence factors of preparing molybdenum copper nano-powder by high-energy ball milling were studied; the morphology and size of powders were analyzed.

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  • 相同时间下,粉体平均颗粒尺寸磨转速增加减小其中的颗粒数目也增多

    When charge ratio and milling time were constant, the average particle size of the powder decreased with the increase of rotation speed, while the amount of small size particles increased.

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  • 研究不同单体组成共聚组成、吸液性能颗粒形态影响

    The influence of monomer composition on copolymer composition, absorption characteristics and microsphere morphology was investigated.

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  • 采用双螺旋两种料方式,研究不同时间对(铝)热剂性能颗粒微现形态影响。

    Properties and morphology of thermites mixed up by twin-screw and ball milling procedures are investigated with different mixing time.

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  • 实验发现,液相粘度较高表面张力熔体材料浸润颗粒板等因素影响下,烧结过程中出现化现象。化的出现妨碍了直接金属激光烧结成形的顺利进行。

    During the laser sintering, due to the large liquid phase viscosity and surface tension, the balling effect occurred when the molten did not wet the solid metal particle and the underlying substrate.

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  • 目的研究体外培养发育人胚卵裂18XY染色体数目变异培养方式颗粒细胞分泌功能影响

    Objective:To study the numerical deviation of chromosome of 18, X and Y in blastomeres developed in vitro and effects of culture system on granulosa cells secretory function.

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  • 示踪稳定速度和碎纸屑基本一样,可以认为这种颗粒能代表当地水流的运动速度。

    It can be assumed that the speed is a good representation of the speed of the water at the spot.

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  • 示踪稳定速度和碎纸屑基本一样,可以认为这种颗粒能代表当地水流的运动速度。

    It can be assumed that the speed is a good representation of the speed of the water at the spot.

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