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    Control rod for nuclear reactor
    1.
    发明授权
    Control rod for nuclear reactor 失效
    核反应堆控制棒

    公开(公告)号：US4655999A

    公开(公告)日：1987-04-07

    申请号：US622727

    申请日：1984-06-20

    申请人： Hiromi Maruyama ,  Tadahiro Ohnishi

    发明人： Hiromi Maruyama ,  Tadahiro Ohnishi

    IPC分类号： G21C7/113 ,  G21C7/10

    CPC分类号： G21C7/113 ,  G21Y2002/201 ,  G21Y2002/206 ,  G21Y2004/10 ,  G21Y2004/30 ,  G21Y2004/304 ,  Y02E30/39

    摘要： A control rod for a nuclear reactor according to the present invention is such that neutron absorbing rods are surrounded with a second neutron absorber which differs in material from the neutron absorbing rods. In a case where the neutron absorbing rod is composed of boron carbide powder and a cladding for receiving the powder therein, the second neutron absorber is a sheet of a material having a neutron irradiation lifetime longer than that of boron carbide, for example, hafnium. In a case where the neutron absorbing rod is a round hafnium rod, the second neutron absorber having a neutron absorption worth higher than that of hafnium is located so as to surround the round hafnium rods. Thus, the neutron absorbing rods are effectively used, and the lifetime of the control rod can be prolonged in the former.

    摘要翻译： 根据本发明的用于核反应堆的控制棒是这样的，即中子吸收棒被与中子吸收棒材料不同的第二中子吸收器包围。 在中子吸收棒由碳化硼粉末和用于接收粉末的包层构成的情况下，第二中子吸收体是具有比碳化硼例如铪的中子照射寿命长的材料的片材。 在中子吸收棒是圆形铪棒的情况下，具有比铪高的中子吸收的第二中子吸收体被定位成围绕圆形铪棒。 因此，有效地使用中子吸收棒，并且可以在前者中延长控制棒的寿命。

    Light water moderation type nuclear reactor
    2.
    发明授权
    Light water moderation type nuclear reactor 失效
    轻水缓和型核反应堆

    公开(公告)号：US4851181A

    公开(公告)日：1989-07-25

    申请号：US123542

    申请日：1987-11-20

    申请人： Renzo Takeda ,  Kanji Kato ,  Tadahiro Ohnishi ,  Sadao Uchikawa ,  Hiromi Maruyama ,  Motoo Aoyama ,  Kikuo Umegaki ,  Yasunori Bessho ,  Motomasa Fuse ,  Michiro Yokomi

    发明人： Renzo Takeda ,  Kanji Kato ,  Tadahiro Ohnishi ,  Sadao Uchikawa ,  Hiromi Maruyama ,  Motoo Aoyama ,  Kikuo Umegaki ,  Yasunori Bessho ,  Motomasa Fuse ,  Michiro Yokomi

    IPC分类号： G21C5/12 ,  G21C1/08 ,  G21C3/328 ,  G21C5/00 ,  G21C5/18

    CPC分类号： G21C5/18 ,  Y02E30/40

    摘要： In a light water moderation type nuclear reactor with the once-through method, the reactor core is divided into a central area and a peripheral area by a partition member, a first fuel assembly is arranged in the central area (high conversion area) and a second fuel assembly is arranged in the peripheral area. The ratio (r.sub.H/U) of the number of hydrogen atoms to that of uranium atoms in the central area is smaller than that of the ratio in the peripheral area and the second fuel assembly in the peripheral area is formed of fuel rods of the first fuel assembly having been previously burned in the central area and moved into the peripheral area. The plutonium production increases and uranium consumption is reduced during the first half of the lifetime of the fuel rods in the high conversion area with the take-up burn up increasing during the second half of the lifetime of the fuel rods in the burner area.

    摘要翻译： 在具有一次通过方法的轻水调节型核反应堆中，反应堆堆芯通过分隔构件分成中心区域和周边区域，第一燃料组件布置在中心区域（高转化区域）和 第二燃料组件布置在周边区域中。 中心区域的氢原子数与铀原子数的比值（rH / U）小于外围区域的比例，并且周边区域中的第二燃料组件的比率（rH / U）由第一 燃料组件先前已经在中心区域燃烧并移动到周边区域。 在高转化率区域的燃料棒的寿命的前半期，钚的生产增加，铀的消耗减少，在燃烧器区域的燃料棒的寿命的后半期，吸收燃烧增加。

    Core loading strategy
    3.
    发明授权
    Core loading strategy 失效
    核心加载策略

    公开(公告)号：US5093070A

    公开(公告)日：1992-03-03

    申请号：US448209

    申请日：1989-12-08

    申请人： Junichi Koyama ,  Motoo Aoyama ,  Akinobu Nakajima ,  Hiromi Maruyama

    发明人： Junichi Koyama ,  Motoo Aoyama ,  Akinobu Nakajima ,  Hiromi Maruyama

    IPC分类号： G21C5/00 ,  G21C5/18 ,  G21C7/00 ,  G21C19/20

    CPC分类号： G21C19/205 ,  G21C7/00 ,  G21Y2002/201 ,  G21Y2004/10 ,  G21Y2004/40 ,  Y02E30/31 ,  Y02E30/39

    摘要： A core of boiling water reactor is divided into a central region and a peripheral region surrounding it in the radial direction thereof. The loading fraction of new first fuel assemblies containing burnable poison and loaded in the central region is greater than the loading fraction of the new first fuel assemblies loaded in the peripheral region. The loading fraction of second fuel assemblies loaded in the central region of the core and operating in a second operation cycle is smaller than the loading fraction of the second fuel assemblies loaded in the peripheral region of the core and operating in the second operation cycle. The second fuel assemblies contain no burnable poison. In such a core, the reactivity of the peripheral region is greater than that of the central region in the beginning of an operation cycle. Contrary, the reactivity of the central region is greater than that of the peripheral region in the end of an operation cycle.

    摘要翻译： 沸水反应器的核心沿径向方向被分为中心区域和围绕它的周边区域。 包含可燃毒物并装载在中心区域的新的第一燃料组件的负载分数大于装载在周边区域中的新的第一燃料组件的负载分数。 负载在芯的中心区域并在第二操作循环中操作的第二燃料组件的负载分数小于装载在铁芯的周边区域并在第二操作循环中操作的第二燃料组件的负载分数。 第二燃料组件不含可燃毒物。 在这样的核心中，在操作周期开始时，周边区域的反应性大于中心区域的反应性。 相反，在操作周期结束时，中心区域的反应性大于外围区域的反应性。

    Feed additives for ruminants
    4.
    发明授权
    Feed additives for ruminants 失效
    反刍动物饲料添加剂

    公开(公告)号：US4533557A

    公开(公告)日：1985-08-06

    申请号：US481853

    申请日：1983-04-04

    申请人： Hiromi Maruyama ,  Seiji Sasaoka ,  Mitsuo Kiuchi ,  Hironori Kanehara

    发明人： Hiromi Maruyama ,  Seiji Sasaoka ,  Mitsuo Kiuchi ,  Hironori Kanehara

    IPC分类号： A23K1/00 ,  A23K1/16

    CPC分类号： A23K20/163 ,  A23K40/35 ,  Y10S426/807

    摘要： Feed additives for ruminants comprises tablets or granules of a mixture of biologically active ingredient(s), chitosan and protective material(s) which are one or more substance(s) selected from the group consisting of saturated or unsaturated aliphatic mono-carboxylic acids having 14 to 22 carbon atoms, hardened vegetable oils and hardened animal oils.By containing chitosan, said feed additives easily pass through the rumen and are easily digested by digestive organs from abomasum, consequently said biologically active ingredient(s) are efficiently absorbed by oral feeding to ruminants.

    摘要翻译： 用于反刍动物的饲料添加剂包括生物活性成分，壳聚糖和保护材料的混合物的片剂或颗粒，所述混合物是一种或多种选自以下的物质：饱和或不饱和脂族单羧酸，其具有 14至22个碳原子，硬化植物油和硬化动物油。 通过含有壳聚糖，所述饲料添加剂容易通过瘤胃，并且容易地被消化器官从皱胃消化，因此所述生物活性成分通过口服喂养反刍动物被有效地吸收。

    High speed data logical comparison device
    6.
    发明授权
    High speed data logical comparison device 失效
    高速数据逻辑比较装置

    公开(公告)号：US4270116A

    公开(公告)日：1981-05-26

    申请号：US69347

    申请日：1979-08-24

    申请人： Yoshichika Ichimiya ,  Tsuneta Sudo ,  Hiromi Maruyama ,  Shigeru Sugamori ,  Susumu Sumida ,  Masao Shimizu ,  Toshiaki Wakita

    发明人： Yoshichika Ichimiya ,  Tsuneta Sudo ,  Hiromi Maruyama ,  Shigeru Sugamori ,  Susumu Sumida ,  Masao Shimizu ,  Toshiaki Wakita

    IPC分类号： G01R31/28 ,  G06F7/02 ,  G06F7/04 ,  G06F11/22

    CPC分类号： G06F7/02

    摘要： Reference logical data is spatially divided by a data dividing circuit for each time slot, and the divided data are converted into data, each having a continuous effective period. The divided and converted reference data and input logical data are compared by comparators to detect whether or not they are coincident with each other. A clock signal for determining the timing of comparison is also divided by a clock signal dividing circuit into n clock signals which are displaced one time slot apart in phase and occurring with a period of n time slots. By these divided clock signals those of the outputs from the comparators corresponding thereto are taken out from a comparison output circuit.

    摘要翻译： 参考逻辑数据由每个时隙的数据分割电路在空间上划分，并且分割的数据被转换成数据，每个数据具有连续的有效周期。 通过比较器比较分割和转换的参考数据和输入逻辑数据，以检测它们是否彼此一致。 用于确定比较定时的时钟信号也被时钟信号分频电路划分为n个时钟信号，这些n个时钟信号相移一个时隙并且以n个时隙的周期发生。 通过这些分开的时钟信号，从比较输出电路中取出与其相对应的比较器的输出。

    Alkaline storage battery having an improved current collector tab
    8.
    发明授权
    Alkaline storage battery having an improved current collector tab 失效
    具有改进的电流收集器的碱性蓄电池

    公开(公告)号：US5238757A

    公开(公告)日：1993-08-24

    申请号：US799652

    申请日：1991-11-29

    申请人： Norio Suzuki ,  Hiromi Maruyama ,  Kaichi Okami

    发明人： Norio Suzuki ,  Hiromi Maruyama ,  Kaichi Okami

    IPC分类号： H01M2/26 ,  H01M10/28

    CPC分类号： H01M2/263 ,  H01M10/28 ,  Y02E60/124

    摘要： An alkaline storage battery such as a sealed nickel-cadmium storage battery has an improved upper current collector tab welded to the terminal edge of a spirally wound electrode of a spirally coiled electrode assembly. The current collector tab comprises a current collecting tab and a lead tab. The current collecting tab is higher in electric resistance than the lead tab, so that the current collecting tab can easily be welded to the terminal edge of the electrode of the electrode assembly. The lead tab provides a low internal resistance to allow charging and discharging electric currents to flow easily for improved high-rate discharge performance of the battery.