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    • 1. 发明申请
    • Zirconium based alloys having excellent creep resistance
    • 锆基合金具有优异的耐蠕变性
    • US20060177341A1
    • 2006-08-10
    • US11097726
    • 2005-03-31
    • Yong JeongJong BaekByoung ChoiSang ParkMyung LeeJe BangJeong ParkJun KimHyun KimYoun Jung
    • Yong JeongJong BaekByoung ChoiSang ParkMyung LeeJe BangJeong ParkJun KimHyun KimYoun Jung
    • C22C16/00
    • C22C16/00C22F1/186
    • The present invention relates to a zirconium based alloy composite having an excellent creep resistance and, more particularly, to a zirconium based alloy composite finally heat-treated to have the degree of recrystallization in the range of 40˜70% in order to improve the creep resistance. The zirconium based alloy comprises 0.8˜1.8 wt. % niobium (Nb); 0.38˜0.50 wt. % tin (Sn); one or more elements selected from 0.1˜0.2 wt. % iron (Fe), 0.05˜0.15 wt. % copper (Cu), and 0.12 wt. % chromium (Cr); 0.10˜0.15 wt. % oxygen (O); 0.006˜0.010 wt. % carbon (C); 0.006˜0.010 wt. % silicon (Si); 0.0005˜0.0020 wt. % sulfur (S); and the balance zirconium (Zr). The zirconium alloy manufactured with the composition in accordance with the present invention has an excellent creep resistance compared to a conventional Zircaloy-4, and may effectively be used as a nuclear cladding tube, supporting lattice and inner structures of reactor core in the nuclear power plant utilizing light or heavy water reactor.
    • 本发明涉及具有优异抗蠕变性的锆基合金复合材料,更具体地说,涉及一种锆基合金复合材料,其最终被热处理以具有在40〜70%范围内的重结晶度,以改善蠕变 抵抗性。 锆基合金包含0.8〜1.8wt。 %铌(Nb); 0.38〜0.50重量% 锡(Sn); 一种或多种选自0.1〜0.2wt。 %铁(Fe),0.05〜0.15wt。 %铜(Cu)和0.12重量% %铬(Cr); 0.10〜0.15wt。 %氧(O); 0.006〜0.010重量% %碳(C); 0.006〜0.010重量% %硅(Si); 0.0005〜0.0020重量 %硫(S); 余量为锆(Zr)。 按照本发明的组合物制造的锆合金与常规的Zircaloy-4相比具有优异的抗蠕变性,并且可以有效地用作核包层管,在核电站中支撑晶格和反应堆芯的内部结构 利用轻水或重水反应堆。
    • 7. 发明申请
    • Semiconductor memory device and method of driving the same
    • 半导体存储器件及其驱动方法
    • US20050232036A1
    • 2005-10-20
    • US10879552
    • 2004-06-29
    • Byoung Choi
    • Byoung Choi
    • G11C7/00G11C8/12G11C29/00
    • G11C8/12G11C29/781G11C29/785
    • Provided is directed to a semiconductor memory device and a method of driving the same capable of improving a repair efficiency with comparison to the conventional method which repairs all the redundancy row even when a defective cell is occurred in only one cell, by including: a memory cell array which is comprised of at least more than one redundancy block and redundancy segment by means of dividing it into a plurality of blocks toward a row direction and then dividing the blocks into a plurality of segments; a control circuit for storing a repair information of a defective cell and for repairing the segment generating the defective cell to the redundancy segment according to the repair information by inputting a row address signal and a column address signal.
    • 本发明涉及一种半导体存储器件及其驱动方法,该半导体存储器件及其驱动方法能够与仅在一个单元中发生缺陷单元时修复所有冗余行的常规方法相比提高修复效率,包括:存储器 单元阵列,其由至少一个冗余块和冗余段组成,通过将其划分为多个块朝向行方向,然后将块划分成多个段; 控制电路,用于通过输入行地址信号和列地址信号来存储缺陷单元的修复信息,并根据修复信息修复产生缺陷单元的段到冗余段。
    • 8. 发明申请
    • Method for generating 3D mesh from 3D points by using shrink-wrapping scheme of boundary cells
    • 通过使用边界单元的收缩包装方案从3D点生成3D网格的方法
    • US20050134586A1
    • 2005-06-23
    • US10831153
    • 2004-04-26
    • Bon KooChang ChuJae KimByoung ChoiYoung Choi
    • Bon KooChang ChuJae KimByoung ChoiYoung Choi
    • G06T17/00G06T17/20
    • G06T17/20G06T2210/56
    • The present invention relates to a method for generating a mesh model representing a 3D surface from unorganized 3D points extracted from a 3D scanner by using a shrink-wrapping scheme of boundary cells. A method for generating 3-dimensional mesh according to the present invention comprises the steps of: (a) receiving unorganized 3D point coordinates extracted by a 3D scanner or a digitizer; (b) extracting a minimum bounding box including all the point coordinates and uniformly dividing the extracted bounding box into cells of a predetermined size; (c) extracting a boundary cell including at least one point from the cells, extracting a boundary surface from all the boundary cells, and generating an initial mesh by summing extracted boundary surfaces; (d) calculating distances between each vertex constituting the mesh and the several points, finding a nearest point, and moving the vertex to the nearest point; and (e) averaging location of each shrink-wrapped vertex and location of the neighboring vertexes, and moving the shrink-wrapped vertex to center of neighboring vertexes.
    • 本发明涉及一种用于通过使用边界单元的收缩包装方案从3D扫描器提取的从未组织的3D点生成表示3D表面的网格模型的方法。 根据本发明的用于生成三维网格的方法包括以下步骤:(a)接收由3D扫描仪或数字化仪提取的无组织3D点坐标; (b)提取包括所有点坐标的最小边界框,并将提取的边界框均匀地划分成预定大小的单元格; (c)从所述单元提取包括至少一个点的边界单元,从所有边界单元提取边界表面,并通过对提取的边界表面求和来生成初始网格; (d)计算构成网格的每个顶点与几个点之间的距离,找到最近的点,并将顶点移动到最近点; 和(e)平均每个收缩包装顶点的位置和相邻顶点的位置,并将收缩包装的顶点移动到相邻顶点的中心。