Nuclear fuel assembly and nuclear reactor incorporating the same
    1.
    发明授权
    Nuclear fuel assembly and nuclear reactor incorporating the same 失效
    核燃料组装和核反应堆并入其中

    公开(公告)号:US5544211A

    公开(公告)日:1996-08-06

    申请号:US321618

    申请日:1994-10-12

    摘要: A fuel assembly has part length and full length fuel rods, and a pair of large-diameter water rods which occupy an area which can accommodate 7 fuel rods. Natural uranium regions are provided in the upper and lower end portions of the effective fuel zone of the fuel assembly. An intermediate region between these upper and lower natural uranium regions provides an enriched uranium region which has three axial sections: an upper section, a middle section and a lower section. The middle section has the highest average enrichment, the lower section has the medium average enrichment and the upper section has the smallest average enrichment. The difference in the average enrichment between the middle section and the lower section is smaller than that between the middle section and the upper section. The upper section has a lower concentration of burnable poison than other sections of the enriched uranium region. According to this arrangement, a greater burn-up degree of the fuel assembly can be achieved with minimal increment of the average enrichment, while preserving sufficiently large safety margin such as the thermal margin of the reactor and the reactor cold shut down margin.

    摘要翻译: 燃料组件具有部件长度和全长燃料棒,以及一对大直径水棒,其占据可容纳7个燃料棒的区域。 天然铀区设置在燃料组件的有效燃料区的上端部和下端部。 这些上部和下部天然铀区域之间的中间区域提供了具有三个轴向部分的浓缩铀区域:上部分,中间部分和下部分。 中段平均浓度最高,下段中等浓度富集,上段平均浓度最小。 中段与下段之间的平均富集差异小于中段与上段之间的平均浓度差。 上段与浓缩铀区其他部分的可燃毒物浓度较低。 根据这种布置,燃料组件的燃烧程度可以以平均富集的最小增量实现,同时保持足够大的安全裕度,例如反应堆的热裕度和反应堆的冷关闭余量。

    Rubber composition for golf ball
    4.
    发明授权
    Rubber composition for golf ball 失效
    高尔夫球用橡胶组合物

    公开(公告)号:US08367779B1

    公开(公告)日:2013-02-05

    申请号:US13301322

    申请日:2011-11-21

    IPC分类号: C08C19/22 C08C19/28

    摘要: The invention provides a rubber composition for golf balls which includes (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) an anthranilic acid derivative of the general formula wherein R1 and R2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, m is an integer from 1 to 4, and n is an integer from 1 to 3, with the proviso that if m and/or n is 2 or more, each occurrence of R1 and R2 may be the same or different. The golf ball rubber composition of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.

    摘要翻译: 本发明提供了一种高尔夫球用橡胶组合物,其包含(A)含有顺式-1,4键含量为至少60重量%的聚丁二烯的基础橡胶,(B)不饱和羧酸和/或其金属盐 ,和(C)通式的邻氨基苯甲酸衍生物,其中R 1和R 2各自独立地为氢原子或1〜20个碳的烃基,m为1〜4的整数,n为1〜 3,条件是如果m和/或n为2以上,则R1和R2的每次出现可以相同或不同。 本发明的高尔夫球橡胶组合物能够获得具有合适的硬度和高弹性的高品质的模制和交联的产品。

    Vibration damping for a rotating shaft
    5.
    发明授权
    Vibration damping for a rotating shaft 有权
    旋转轴的振动阻尼

    公开(公告)号:US07692347B2

    公开(公告)日:2010-04-06

    申请号:US10573634

    申请日:2005-10-11

    申请人: Tsuyoshi Nakajima

    发明人: Tsuyoshi Nakajima

    IPC分类号: H02K5/01

    摘要: The invention provides damping techniques for a rotating shaft. The rotating shaft is supported by rotary bearings. The damping techniques control vibration of the rotating shaft by creating a fluid film in a support element of the rotating shaft. For example, the fluid film may be created between a housing and the rotary bearings. The fluid may be supplied by a pump, and the supply amount of fluid to create the fluid film is relative to the rotational velocity of the shaft. Vibration can be prevented for every operational rotational velocity of the rotating shaft. In some embodiments, the rotating shaft may be powered by or part of an electric motor for a vehicle.

    摘要翻译: 本发明提供了一种用于旋转轴的阻尼技术。 旋转轴由旋转轴承支撑。 阻尼技术通过在旋转轴的支撑元件中产生流体膜来控制旋转轴的振动。 例如,流体膜可以在壳体和旋转轴承之间产生。 流体可以由泵供应,并且用于产生流体膜的流体的供给量相对于轴的旋转速度。 可以防止旋转轴的每个操作旋转速度的振动。 在一些实施例中,旋转轴可以由用于车辆的电动机的一部分供电。

    Rubber composition for golf ball
    9.
    发明授权
    Rubber composition for golf ball 有权
    高尔夫球用橡胶组合物

    公开(公告)号:US08648133B2

    公开(公告)日:2014-02-11

    申请号:US13300763

    申请日:2011-11-21

    IPC分类号: C08K5/405

    CPC分类号: C08K5/405 C08K5/098 C08L21/00

    摘要: The invention provides a rubber composition for golf balls which includes (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) a thiourea of the general formula wherein R is independently at each occurrence a hydrogen atom or a hydrocarbon group of 1 to 20 carbons. The golf ball rubber composition of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.

    摘要翻译: 本发明提供了一种高尔夫球用橡胶组合物,其包含(A)含有顺式-1,4键含量为至少60重量%的聚丁二烯的基础橡胶,(B)不饱和羧酸和/或其金属盐 和(C)通式的硫脲,其中R在每次出现时独立地为氢原子或碳原子数为1〜20的烃基。 本发明的高尔夫球橡胶组合物能够获得具有合适的硬度和高弹性的高品质的模制和交联的产品。

    Ternary intercalation compound of a graphite with an alkali metal
fluoride and fluorine, a process for producing the same, and an
electrically conductive material comprising the ternary intercalation
compound
    10.
    发明授权
    Ternary intercalation compound of a graphite with an alkali metal fluoride and fluorine, a process for producing the same, and an electrically conductive material comprising the ternary intercalation compound 失效
    石墨与碱金属氟化物和氟的三元嵌入化合物,其制备方法和包含三元插层化合物的导电材料

    公开(公告)号:US4515709A

    公开(公告)日:1985-05-07

    申请号:US474202

    申请日:1983-03-09

    摘要: A novel ternary intercalation compound of a graphite with an alkali metal fluoride and fluorine, which is represented by the formula C.sub.x F(MF).sub.y wherein M is an alkali metal is produced by reacting a graphite material with an alkali metal fluoride in an atmosphere of fluorine gas at a temperature of 0.degree. C. to 250.degree. C. for at least a period of time to effect a weight increase in the graphite. The ternary graphite intercalation compound thus obtained has not only an excellent stability to humidity or moisture but also a high electrical conductivity. The novel ternary graphite intercalation compound according to the present invention may be practically used as a novel electrically conductive material and a catalyst of organic reactions.

    摘要翻译: 通过在氟气氛中使石墨材料与碱金属氟化物反应来制造,其中M为碱金属的式CxF(MF)y表示的具有碱金属氟化物和氟的石墨的新型三元嵌入化合物 气体在0℃至250℃的温度下持续至少一段时间以实现石墨的重量增加。 由此获得的三元石墨插入化合物不仅对湿度或湿度具有优异的稳定性,而且具有高导电性。 根据本发明的新型三元石墨插层化合物可以实际上用作新的导电材料和有机反应的催化剂。