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    • 62. 发明授权
    • Process for producing sponge titanium
    • 海绵钛生产工艺
    • US08876938B2
    • 2014-11-04
    • US13585717
    • 2012-08-14
    • Xuemin ChenJun YangZhi Zhou
    • Xuemin ChenJun YangZhi Zhou
    • C22B34/12
    • C22B34/1277C22B34/1272
    • The present invention provides a process for producing sponge titanium, which includes the following steps: Step A: placing aluminum into a resistance furnace, vacuum pumping, introducing inert gas, heating to molten aluminum; Step B: opening a reactor cover, adding a proper amount of potassium fluotitanate to a reactor, leakage detecting after closing the reactor cover, slowly raising the temperature to 150° C., vacuum pumping, and continuously heating to 250° C.; Step C: introducing inert gas into the reactor, continuously raising the temperature to 750° C., stirring uniformly; Step D: opening a valve to adjust the stirring speed, adding molten aluminum drops, and controlling the reaction temperature to 750° C. to 850° C.; Step E: opening the reactor cover, removing a stirring device, eliminating the upper layer of KAlF4 to obtain sponge titanium. The present invention has the beneficial effects of short process flow, low cost, environmental protection and harmlessness.
    • 本发明提供一种生产海绵钛的方法,其包括以下步骤:步骤A:将铝放入电阻炉中,真空泵送,引入惰性气体,加热至熔融铝; 步骤B:打开反应器盖,向反应器中加入适量的氟钛酸钾,关闭反应器盖后进行泄漏检测,缓慢升温至150℃,真空泵送,并连续加热至250℃。 步骤C:将惰性气体引入反应器,将温度持续升至750℃,均匀搅拌; 步骤D:打开阀门以调节搅拌速度,加入熔融的铝滴,并将反应温度控制在750℃至850℃; 步骤E:打开反应器盖,取出搅拌装置,取出上层的KAlF4,得到海绵钛。 本发明具有工艺流程短,成本低,环保和无害化的有益效果。
    • 65. 发明授权
    • Picture layer rate control for video encoding
    • 视频编码的图像层速率控制
    • US08107537B2
    • 2012-01-31
    • US11347718
    • 2006-02-02
    • Zhi ZhouShijun Sun
    • Zhi ZhouShijun Sun
    • G06K9/36G06K9/46G06K9/00
    • H04N19/152H04N19/124H04N19/172H04N19/61
    • A one-pass picture-layer rate control (RC) method and system for controlling a video encoder: The bit allocation and determination of quantization parameter (QP) in this rate control method and system are based on a Rate-Quantization (R-Q) scale model. The R-Q model is a linear one, wherein the number of bits per picture is in reverse ratio of quantization scale for that picture. A conversion of exponential-based QP to linear-scaled QP is taken in the calculation of complexity model and determination of QP. The conversion is integer-based and is consistent with the quantization array defined in the H.264 standard.
    • 用于控制视频编码器的单遍图像层速率控制(RC)方法和系统:该速率控制方法和系统中的比特分配和量化参数(QP)的确定基于速率量化(RQ)量表 模型。 R-Q模型是线性模型,其中每个图像的位数是该图像的量化比例的反比。 在复杂度模型的计算和QP的确定中,将基于指数的QP转换为线性比例的QP。 该转换是基于整数的,与H.264标准中定义的量化数组一致。