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    • 5. 发明授权
    • Rendering terrain patches
    • 渲染地形补丁
    • US08976169B1
    • 2015-03-10
    • US13461537
    • 2012-05-01
    • Quarup BarreirinhasEmil PraunLu Liu
    • Quarup BarreirinhasEmil PraunLu Liu
    • G06T15/00
    • G06T15/04G06T17/05G06T17/20
    • Systems, methods, and computer storage mediums are provided for blending custom terrain patches onto a terrain of a virtual three-dimensional environment. A method includes accessing terrain data that describes a mesh representing the surface of the terrain of the three-dimensional environment. The mesh is constructed of primitives that are defined by a terrain altitude at each vertex. A surface grid is determined from the primitives such that each point in the surface grid includes the terrain altitude where the point falls on the mesh. Custom terrain data is also accessed that includes a custom grid of terrain altitudes. A patch grid is determined from the custom grid such that each point in the patch grid includes a terrain altitude derived from the custom grid. The patch and surface grids are blended such that each terrain altitude in the patch grid modifies its corresponding terrain altitude in the surface grid.
    • 提供系统,方法和计算机存储介质,用于将自定义地形贴片混合到虚拟三维环境的地形上。 一种方法包括访问描述表示三维环境的地形表面的网格的地形数据。 网格由每个顶点的地形高度定义的图元构成。 从基元确定表面网格,使得表面网格中的每个点包括点落在网格上的地形高度。 还可以访问包括地形高度的自定义网格的自定义地形数据。 从自定义网格确定补丁网格,使得补丁网格中的每个点都包含从自定义网格导出的地形高度。 混合补片和表面网格,使得补丁网格中的每个地形高度修改其表面网格中相应的地形高度。
    • 6. 发明授权
    • Electromagnetic pointer
    • 电磁指针
    • US08692814B2
    • 2014-04-08
    • US12831628
    • 2010-07-07
    • Chien-Chia LienCheng-Lu Liu
    • Chien-Chia LienCheng-Lu Liu
    • G06F3/033
    • G06F3/03545G06F3/046
    • An electromagnetic pointer is disclosed. The electromagnetic pointer comprises a pen holder assembly, a circuit board, a metal rod, a ferrite core with coils and a trigger device. The diameter of the pen holder assembly is less than 6 mm. The circuit board comprises a resonance circuit. The metal rod has a low permeability. The ferrite core with coil constitutes an inductor and the coil electrically connects to the circuit board through a conductive wire to complete the resonance circuit. The ferrite core has a hollow center so that the metal rod can move through to trigger the trigger device and change electric properties of the resonance circuit.
    • 公开了电磁指示器。 电磁指示器包括笔架组件,电路板,金属棒,具有线圈的铁氧体磁芯和触发装置。 笔筒组件的直径小于6毫米。 电路板包括谐振电路。 金属棒具有低渗透性。 具有线圈的铁氧体磁芯构成电感器,并且线圈通过导线电连接到电路板以完成谐振电路。 铁氧体磁芯具有中空的中心,使得金属杆可以移动以触发触发装置并改变谐振电路的电特性。
    • 7. 发明申请
    • REVERSIBLY WATER-SOLUBLE NANOCRYSTALS
    • 可逆的水溶性纳米晶体
    • US20140004562A1
    • 2014-01-02
    • US13878358
    • 2012-01-20
    • Xinhua ZhongLu Liu
    • Xinhua ZhongLu Liu
    • G01N33/50
    • G01N33/5005B82Y30/00C07H19/10C07H19/20
    • A general, facile, and reversible nanocrystal (NCs) phase transfer protocol via ligand exchange using nucleotides and/or nucleosides is provided to generate reversibly water-soluble nanocrystals. This phase transfer strategy can be employed on a wide variety of chemically synthesized nanostructured materials including semiconductors, metal oxides and noble metals with different sizes and shapes. The nucleotide/nucleoside-capped nanocrystals can disperse homogeneously in aqueous or alcohol media retaining, for example, high photoluminescence quantum yields. The disclosed water-soluble nanocrystals have excellent colloidal and photoluminescent stability independent on the pH and ionic strength, minimal hydrodynamic size, and are stable in cells and suitable for in vitro cell labeling, cell tracking, and other bioimaging applications.
    • 提供通过使用核苷酸和/或核苷的配体交换的通用的,容易的和可逆的纳米晶体(NCs)相转移方案以产生可逆的水溶性纳米晶体。 该相转移策略可用于各种化学合成的纳米结构材料,包括半导体,金属氧化物和具有不同尺寸和形状的贵金属。 核苷酸/核苷封端的纳米晶体可以均匀地分散在水或醇介质中,保持例如高的光致发光量子产率。 所公开的水溶性纳米晶体具有优异的胶体和光致发光稳定性,独立于pH和离子强度,最小的流体动力学尺寸,并且在细胞中是稳定的并且适用于体外细胞标记,细胞跟踪和其它生物成像应用。