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    • 21. 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。
    • 22. 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。
    • 30. 发明申请
    • Green electrochromic (EC) material and device
    • 绿色电致变色(EC)材料和装置
    • US20070177243A1
    • 2007-08-02
    • US11223794
    • 2005-09-09
    • Lu LiuChunye XuMinoru Taya
    • Lu LiuChunye XuMinoru Taya
    • G02F1/15
    • C09K9/02C08G61/122C08G61/126C09K2211/1007C09K2211/1011C09K2211/1044C09K2211/1092
    • Three green EC materials based on thiophene, and a green EC material based on pyrazine are disclosed. A first thiophene derivative (2,3-Di-thiophen-2-yl-thieno[3,4-b]pyrazine), which was previously investigated as a nonlinear optical material, is here disclosed for its use as an EC material, and for its incorporation into an EC device. Synthesis of two new thiophene derivatives (2,5-di(thien-2-yl)-3,4-di(2,2,2-trifluoro-ethoxy)-thiophene and 2,5-(2,3-dihydro-thieno[3,4-b][1,4]dioxin-5-yl)-3,4-di(2,2,2-trifluoro-ethoxy)-thiophene), and a new pyrazine derivative (2,3-dibenzyl-5,7-di(thien-2-yl)thieno[3,4-b]pyrazine) are also disclosed, since these materials are all able to selectively change to a green color state, and can be polymerized to achieve a green EC polymer.
    • 公开了基于噻吩的三种绿色EC材料和基于吡嗪的绿色EC材料。 作为非线性光学材料,先前研究的第一个噻吩衍生物(2,3-二噻吩-2-基 - 噻吩并[3,4-b]吡嗪)在此被公开用作EC材料,并且 将其并入EC设备。 合成两种新的噻吩衍生物(2,5-二(噻吩-2-基)-3,4-二(2,2,2-三氟 - 乙氧基) - 噻吩和2,5-(2,3-二氢 - 噻吩并[3,4-b] [1,4]二恶英-5-基)-3,4-二(2,2,2-三氟 - 乙氧基) - 噻吩)和新的吡嗪衍生物 还公开了二苄基-5,7-二(噻吩-2-基)噻吩并[3,4-b]吡嗪),因为这些材料都能够选择性地变为绿色状态,并且可以聚合以实现 绿色EC聚合物。