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    • 5. 发明申请
    • METHOD FOR PREPARING A POROUS ANTI-REFLECTION THIN FILM COMPOSED OF HOLLOW POLYMERIC NANOPARTICLES
    • 制备中空聚合物纳米复合材料的多孔抗反射膜薄膜的制备方法
    • US20130209678A1
    • 2013-08-15
    • US13824831
    • 2011-05-31
    • Zhijuan SunXiang GaoYingwu Luo
    • Zhijuan SunXiang GaoYingwu Luo
    • B05D5/06
    • B05D5/061B01J13/14B01J13/203B05D1/005B82Y20/00B82Y30/00G02B1/111G02B1/118G02B5/0247
    • A method for preparing a porous anti-reflective thin film composed of hollow polymer nano-particles is provided in the following steps: Firstly, an aqueous dispersion having mass percent of 3-7% is prepared using polymer nano-capsules. A thin film comprising polymer nano-capsules is formed by spin coating on one side or both sides of the substrate using a spin coater. The thin film comprising polymer nano-capsules is dried in vacuum at high temperature. After the core materials of the polymer nano-capsules evaporate completely, the polymer nano-capsules turn into hollow polymer nano-particles, and a porous anti-reflective thin film composed of hollow polymer nano-particles is prepared. The thickness and refractive index of the thin film are adjusted conveniently and effectively by changing the concentration of polymer nano-capsules aqueous dispersion and the hollow volume rate of the polymer nano-particles. The thin film has the advantages of high mechanical intensity and abrasion resistance.
    • 制备由中空聚合物纳米颗粒构成的多孔抗反射薄膜的方法按以下步骤提供:首先,使用聚合物纳米胶囊制备质量百分比为3-7%的水性分散体。 包含聚合物纳米胶囊的薄膜通过使用旋转涂布机在基材的一侧或两侧上旋涂形成。 包含聚合物纳米胶囊的薄膜在高温下真空干燥。 在聚合物纳米胶囊的核心材料完全蒸发后,聚合物纳米胶囊变成中空聚合物纳米颗粒,并制备由中空聚合物纳米颗粒组成的多孔抗反射薄膜。 通过改变聚合物纳米胶囊水分散体的浓度和聚合物纳米颗粒的中空体​​积率,可以方便有效地调节薄膜的厚度和折射率。 该薄膜具有机械强度高和耐磨性好的优点。
    • 8. 发明申请
    • Method For Assigning Frequency Spectrum Bandwith Of An Ofdm And Ofdma Coexistence System
    • 用于分配频谱带宽和方差共享系统的方法
    • US20070286147A1
    • 2007-12-13
    • US11662956
    • 2004-10-09
    • Ning WangHexing LiuXiang GaoYing LiuYanwei Wu
    • Ning WangHexing LiuXiang GaoYing LiuYanwei Wu
    • H04J11/00
    • H04L5/0007H04L5/0028H04L5/0048H04L5/0064H04L5/0087H04L5/1469
    • The present invention relates to a method for assigning frequency spectrum bandwidth of an OFDM and OFDMA coexistence system, and the base station system combines uplink and downlink data containing OFDM sub-frames and OFDMA sub-frames in a time division fashion, assigns the frequency spectrum reasonably according to the different bandwidth requirements of the OFDM and the OFDMA and the use condition of the frequency band, and constitutes a frame structure realizing the coexistence of the OFDM and the OFDMA, so as to send the OFDMA uplink/downlink data and the OFDM uplink/downlink data. The method for assigning frequency spectrum bandwidth according to the present invention can achieve a higher frequency spectrum utilization efficiency of an OFDM and OFDMA coexistence system, avoid the waste of the frequency spectrum resource of a service provider; and can also realize more flexible networking.
    • 本发明涉及一种用于分配OFDM和OFDMA共存系统的频谱带宽的方法,并且基站系统以时分方式组合包含OFDM子帧和OFDMA子帧的上行链路和下行链路数据,分配频谱 合理地根据OFDM和OFDMA的不同带宽要求和频带的使用条件,构成实现OFDM与OFDMA共存的帧结构,从而发送OFDMA上行/下行数据和OFDM 上行/下行数据。 根据本发明的用于分配频谱带宽的方法可以实现OFDM和OFDMA共存系统的更高的频谱利用效率,避免服务提供商的频谱资源的浪费; 并可实现更灵活的网络化。