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    • 24. 发明授权
    • Peroxide decomposition catalyst
    • 过氧化物分解催化剂
    • US07988944B2
    • 2011-08-02
    • US11993892
    • 2006-06-20
    • Takeshi IshiyamaHideyuki HigashimuraHiroshi Takigawa
    • Takeshi IshiyamaHideyuki HigashimuraHiroshi Takigawa
    • C01B13/00G01N33/44C07F3/12
    • B01J31/2243B01J23/30B01J23/34B01J31/1815B01J31/183B01J31/2239B01J2531/0216B01J2531/025B01J2531/0258B01J2531/16B01J2531/72B01J2531/842B01J2531/845
    • An object of the present invention is to provide a catalyst which decomposes a peroxide effectively and economically under a high temperature while suppressing generation of free radicals, and the present invention provides a peroxide decomposition catalyst containing a base metal atom, wherein a value A indicating a free radical generation amount represented by the (equation 1) is not more than 0.20, and a value B indicating a reaction rate represented by the (equation 2), which can be easily applied to utility such as an agent for preventing deterioration of a polymer electrolyte-type fuel cell and a water electrolysis apparatus, and an antioxidant for medicaments, agrochemicals and foods. A=(Mw(S)/Mw)−1  (equation 1) (wherein Mw is a weight average molecular weight of poly(sodium 4-styrenesulfonate) after a hydrogen peroxide decomposition test in the test at 80° C. in the presence of poly(sodium 4-styrenesulfonate), and Mw(S) is a weight average molecular weight of poly(sodium 4-styrenesulfonate) before the test) B=N(PO)/N(cat)  (equation 2) (wherein N(po) is a mole number of hydrogen peroxide decomposed per 20 minutes in a hydrogen peroxide decomposition test in the (equation 1), and N(cat) is a mole number per metal atom of a catalyst used).
    • 本发明的目的在于提供一种在高温下有效且经济地分解过氧化物同时抑制自由基产生的催化剂,本发明提供了含有贱金属原子的过氧化物分解催化剂,其中A表示 由(式1)表示的自由基产生量不大于0.20,表示由(式2)表示的反应速度的值B,其可以容易地应用于防止聚合物劣化的试剂 电解质型燃料电池和水电解装置,以及用于药物,农药和食品的抗氧化剂。 A =(Mw(S)/ Mw)-1(式1)(式中,Mw是在80℃下在过氧化氢分解试验中聚(4-苯乙烯磺酸钠)的重均分子量, 的聚(4-苯乙烯磺酸钠),Mw(S)是试验前的聚(4-苯乙烯磺酸钠)的重均分子量)B = N(PO)/ N(cat)(式2)(式中,N (po)是在(式1)的过氧化氢分解试验中每20分钟分解的过氧化氢的摩尔数,N(cat)是使用的催化剂的每个金属原子的摩尔数)。
    • 30. 发明申请
    • GRAPHICS RENDERING DEVICE AND GRAPHICS RENDERING METHOD
    • 图形渲染设备和图形渲染方法
    • US20100020088A1
    • 2010-01-28
    • US12526496
    • 2007-02-28
    • Hideaki Harumoto
    • Hideaki Harumoto
    • G09G5/36G06T1/60
    • G09G5/395B01J31/04B01J31/26B01J2231/70B01J2531/72B01J2531/845G06T15/005G09G5/001G09G2350/00
    • When moving images such as three-dimensional graphics, or the like are displayed, high-quality images can be displayed by keeping a display frame rate, suppressing a breakdown of display contents, and making a drawing engine exhibit processing abilities to maximum. A graphics rendering device includes a frame buffer 40 in which a plurality of areas are provided, a rendering frame counter 15 for counting a number of frames in which the rendering is ended, a display frame counter 17 for counting a number of frames in which a display on a screen is completed within respective frames whose rendering is ended, a rendering controlling portion 11 for determining whether or not an empty area is present on the frame buffer based on the value of the rendering frame counter and the value of the display frame counter and permitting the rendering of the display element in the next frame when the empty area is present, a rendering necessary-time predicting portion 13 for predicting a rendering required time, and a rendering omission controlling portion 12 for determining whether or not the rendering is completed before display based on the value of the display frame counter, a display period of the frame, and a predicted rendering required time and going to a process in the next frame by omitting an execution of a succeeding rendering command when the rendering is not completed.
    • 当显示诸如三维图形等的图像时,可以通过保持显示帧率,抑制显示内容的故障,使绘图引擎的处理能力最大化来显示高质量的图像。 图形绘制装置包括其中提供多个区域的帧缓冲器40,用于对渲染结束的帧数进行计数的渲染帧计数器15,用于对其中的 屏幕上的显示在其渲染结束的各个帧内完成,渲染控制部分11用于基于渲染帧计数器的值和显示帧计数器的值来确定帧缓冲器上是否存在空区域 并且当空白区域存在时允许显示元素在下一帧中的渲染,用于预测渲染所需时间的渲染必要时间预测部分13以及用于确定渲染是否完成的渲染省略控制部分12 在显示基于显示帧计数器的值,帧的显示周期和预测渲染所需时间之前进行显示 当渲染未完成时,通过省略执行后续渲染命令来在下一帧中处理。