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212 条记录 (耗时 0.04 秒)

    Method for preparing white carbon black modified by silane coupling agent
    52.
    发明授权
    Method for preparing white carbon black modified by silane coupling agent 有权
    硅烷偶联剂改性白炭黑的制备方法

    公开(公告)号：US09120928B2

    公开(公告)日：2015-09-01

    申请号：US13812956

    申请日：2011-07-29

    申请人： Li Liu ,  Fa zhong Zhang ,  Ying yan Mao ,  Yan Li ,  Shui Hu ,  Shi peng Wen ,  Li qun Zhang

    发明人： Li Liu ,  Fa zhong Zhang ,  Ying yan Mao ,  Yan Li ,  Shui Hu ,  Shi peng Wen ,  Li qun Zhang

    IPC分类号： C09C1/30 ,  B82Y30/00

    CPC分类号： C09C1/3081 ,  B82Y30/00 ,  C01P2004/51 ,  C01P2004/62 ,  C01P2006/12

    摘要： The invention relates to a method for preparing silica modified by a silane coupling agent. The method comprises the following steps: preparing a kind of coupling agent sol solution by mixing the solvent, water, catalyst and coupling agent; uniformly dispersing silica into the sol solution by means of ultrasonic dispersion or shear dispersion to achieve a turbid solution with uniform dispersion and ideal particle size; and then stirring the turbid solution at a constant speed to make the coupling agent sol reacting with silica to prepare highly hydrophobic silica modified by the coupling agent through controlling the temperature and reaction time. The coupling agent sol solution is obtained by a sol-gel process and silica is uniformly dispersed in the coupling agent sol solution through combined action of various dynamic means to ensure the sufficient reaction between silica and coupling agent, thus to obtain silica modified by the coupling agent.

    摘要翻译： 本发明涉及一种制备通过硅烷偶联剂改性的二氧化硅的方法。 该方法包括以下步骤：通过混合溶剂，水，催化剂和偶联剂制备一种偶联剂溶胶溶液; 通过超声分散或剪切分散法将二氧化硅均匀分散在溶胶溶液中，达到均匀分散和理想粒径的混浊溶液; 然后以恒定的速度搅拌混浊溶液，使偶联剂与二氧化硅溶剂反应，制备出由偶联剂改性的高疏水性二氧化硅，通过控制温度和反应时间。 通过溶胶 - 凝胶法获得偶联剂溶胶溶液，并通过各种动力学手段的联合作用将二氧化硅均匀分散在偶联剂溶胶溶液中，以确保二氧化硅与偶联剂之间的充分反应，从而获得通过偶联剂改性的二氧化硅 代理商

    Low power local oscillator signal generation
    54.
    发明授权
    Low power local oscillator signal generation 失效
    低功耗本地振荡器信号产生

    公开(公告)号：US08787854B2

    公开(公告)日：2014-07-22

    申请号：US13557382

    申请日：2012-07-25

    申请人： Li Liu ,  Prasad Srinivasa Siva Gudem ,  Frederic Bossu ,  Chiewcharn Narathong

    发明人： Li Liu ,  Prasad Srinivasa Siva Gudem ,  Frederic Bossu ,  Chiewcharn Narathong

    IPC分类号： H04B3/04

    CPC分类号： H04B17/004 ,  H04B17/102 ,  H04B17/20 ,  H04W52/0274 ,  Y02D70/00

    摘要： A method and apparatus for providing an oscillating signal within a transmitter/receiver circuit is described. The transmitter/receiver circuit may include an oscillator that generates an oscillating signal that may be provided to a low power, low gain mixer of the transmitter/receiver circuit along a shorter circuit path that includes low power circuitry, such as low power buffers and low power frequency dividers. The oscillating signal may also be provided to a high power, high gain mixer along a longer circuit path that includes high power circuitry, such as high power buffers and high power frequency dividers. Specifically, the low power circuitry is adapted to consume less power in an ON state than the high power circuitry in an ON state, and the shorter circuit path has a shorter electrical path length than the longer circuit path.

    摘要翻译： 描述了一种用于在发射机/接收机电路内提供振荡信号的方法和装置。 发射机/接收机电路可以包括振荡器，其产生可以沿着包括低功率电路（例如低功率缓冲器和低功率缓冲器）的较短电路路径被提供给发射机/接收机电路的低功率低增益混频器的振荡信号 功率分频器 振荡信号还可以沿着包括高功率电路（例如高功率缓冲器和高功率分频器）的较长电路路径被提供给高功率高增益混频器。 具体地，低功率电路适于在ON状态下消耗比处于ON状态的高功率电路的ON状态更少的功率，并且较短的电路路径具有比较长电路路径更短的电路径长度。

    Lead-free X-ray shielding rubber composite
    55.
    发明授权
    Lead-free X-ray shielding rubber composite 有权
    无铅X射线屏蔽橡胶复合材料

    公开(公告)号：US08728349B2

    公开(公告)日：2014-05-20

    申请号：US12999424

    申请日：2009-06-23

    申请人： Li Liu ,  Liqun Zhang ,  Shui Hu ,  Shipeng Wen ,  Zongyuan Wei

    发明人： Li Liu ,  Liqun Zhang ,  Shui Hu ,  Shipeng Wen ,  Zongyuan Wei

    IPC分类号： G21F1/06 ,  G21F1/10 ,  G21F3/00 ,  G21F3/02 ,  G21F5/00 ,  G21F7/00

    CPC分类号： G21F1/02 ,  C08K3/013 ,  C08K3/10 ,  C08K5/098 ,  C08K5/14 ,  C08K5/548 ,  C08L21/00

    摘要： An overall lead-free X-ray shielding rubber compound material. The overall lead-free X-ray shielding rubber compound material uses rare earth mixture to replace lead, simultaneously adds metal tin and compounds thereof, metal tungsten and compounds thereof and bismuth and compounds thereof as shielding main materials and is further compounded with rubber to prepare the compound material which can realize the overall shielding and the complete lead-free property within the energy range of 40-170 kVp. When rare earth and bismuth materials are used, the way of combined use of two metal element inorganic compounds and unsaturated organic complexes is adopted, and the in-situ reaction and the compounding with a polymer matrix are carried out, thereby leading the shielding element disperse phase to form nano-micro-level dispersed particles.

    摘要翻译： 整体无铅X射线屏蔽橡胶复合材料。 整体无铅X射线屏蔽橡胶复合材料采用稀土混合物代替铅，同时加入金属锡及其化合物，金属钨及其化合物，铋及其化合物作为屏蔽主要材料，并进一步与橡胶配混以制备 可实现整体屏蔽的复合材料和在40-170 kVp的能量范围内的完全无铅性能。 当使用稀土和铋材料时，采用两种金属元素无机化合物和不饱和有机配合物的组合使用方式，进行原位反应和与聚合物基体的配合，从而使屏蔽元件分散 相形成纳米级微分级粒子。

    LOW POWER LOCAL OSCILLATOR SIGNAL GENERATION
    57.
    发明申请
    LOW POWER LOCAL OSCILLATOR SIGNAL GENERATION 失效
    低功率本地振荡器信号发生器

    公开(公告)号：US20140030991A1

    公开(公告)日：2014-01-30

    申请号：US13557382

    申请日：2012-07-25

    申请人： Li Liu ,  Prasad Srinivasa Siva Gudem ,  Frederic Bossu ,  Chiewcharn Narathong

    发明人： Li Liu ,  Prasad Srinivasa Siva Gudem ,  Frederic Bossu ,  Chiewcharn Narathong

    IPC分类号： H04B17/00

    CPC分类号： H04B17/004 ,  H04B17/102 ,  H04B17/20 ,  H04W52/0274 ,  Y02D70/00

    摘要： A method and apparatus for providing an oscillating signal within a transmitter/receiver circuit is described. The transmitter/receiver circuit may include an oscillator that generates an oscillating signal that may be provided to a low power, low gain mixer of the transmitter/receiver circuit along a shorter circuit path that includes low power circuitry, such as low power buffers and low power frequency dividers. The oscillating signal may also be provided to a high power, high gain mixer along a longer circuit path that includes high power circuitry, such as high power buffers and high power frequency dividers. Specifically, the low power circuitry is adapted to consume less power in an ON state than the high power circuitry in an ON state, and the shorter circuit path has a shorter electrical path length than the longer circuit path.

    摘要翻译： 描述了一种用于在发射机/接收机电路内提供振荡信号的方法和装置。 发射机/接收机电路可以包括振荡器，其产生可以沿着包括低功率电路（例如低功率缓冲器和低功率缓冲器）的较短电路路径被提供给发射机/接收机电路的低功率低增益混频器的振荡信号 功率分频器 振荡信号还可以沿着包括高功率电路（例如高功率缓冲器和高功率分频器）的较长电路路径被提供给高功率高增益混频器。 具体地，低功率电路适于在ON状态下消耗比处于ON状态的高功率电路的ON状态更少的功率，并且较短的电路路径具有比较长电路路径更短的电路径长度。