Surface-modified electrode and its use in a bioelectrochemical process
    1.
    发明授权
    Surface-modified electrode and its use in a bioelectrochemical process 失效
    表面改性电极及其在生物电化学工艺中的应用

    公开(公告)号:US4655885A

    公开(公告)日:1987-04-07

    申请号:US817570

    申请日:1986-01-10

    CPC分类号: C12Q1/003

    摘要: In a bioelectrochemical process in which the electrons are transferred directly, without use of a mediator, such as a redox dye or cofactor, between an electrode and an electroactive biological material, such as an enzyme or a protein, in either direction, rapid electron transfer has previously been achieved between an electrode and the positively charged protein horse-heart cytochrome c by adding a surface-modifier such as 4,4'-bipyridyl or a derivative thereof.It has now been found possible to promote electron transfer to either a positively or a negatively charged protein using the same surface-modifier for either job, namely a compound of formula ##STR1## wherein: the pyridine ring shown is substituted in the 2-, 3- or 4-position by the (methylene)hydrazinecarbothioamide group shown;R.sup.1 represents hydrogen atom(s) or one or two methyl or ethyl groups in the 2-,3- or 4-position (when the said position is not substituted by the (methylene)hydrazinecarbothioamide group shown);R.sup.2 represents a hydrogen atom or a methyl group;R.sup.3 represents a hydrogen atom or a methyl group; andR.sup.4 represents a hydrogen atom or a methyl group.

    摘要翻译: 在生物电化学工艺中,电子直接转移,而不使用电极和电活性生物材料(如酶或蛋白质)之间的任何一个方向,不使用介质(如氧化还原染料或辅因子),快速电子转移 之前已经通过添加表面改性剂如4,4'-联吡啶或其衍生物在电极和带正电荷的蛋白质马 - 心细胞色素c之间实现。 现在已经发现可以使用相同的表面改性剂促进电子转移为正电荷或带负电荷的蛋白质,即任一工作的化合物,即式(1)的化合物,其中:所示的吡啶环在 (亚甲基)肼基硫代酰胺基团的2-,3-或4-位; R1表示2-,3-或4-位的氢原子或一个或两个甲基或乙基(当所述位置未被所示的(亚甲基)肼甲硫基酰胺基团取代时); R2表示氢原子或甲基; R3表示氢原子或甲基; 并且R 4表示氢原子或甲基。

    Lubricant distribution weir for lubricating moving machine elements
    2.
    发明申请
    Lubricant distribution weir for lubricating moving machine elements 审中-公开
    润滑移动机构元件的润滑剂分配堰

    公开(公告)号:US20060062504A1

    公开(公告)日:2006-03-23

    申请号:US10948005

    申请日:2004-09-23

    IPC分类号: F16C33/02 F16C19/00

    摘要: A device and method for uniformly providing lubricant to rotating machine parts is provided. The device comprises an axially mounted rotating circumferential lubricant reservoir with a weir comprising one side of the lubricant reservoir. The reservoir and weir are disposed at uniform radius and circumferentially about an axis of rotation causing lubricant added to the reservoir to flow uniformly over the weir about the circumference of the weir when the device is in high speed rotational motion. Because of the uniform flow of lubricant over the top of the weir around the circumference of the weir, lubricant can be directed to machine parts requiring lubrication in a uniform manner around the circumference of the moving device.

    摘要翻译: 提供了一种用于均匀地向旋转机器部件提供润滑剂的装置和方法。 该装置包括轴向安装的旋转周向润滑剂储存器,其具有包括润滑剂储存器的一侧的堰。 储存器和堰设置成均匀的半径并围绕旋转轴线周向地设置,使得当装置处于高速旋转运动时,添加到储存器的润滑剂均匀地流过围绕堰的圆周的堰。 由于润滑剂在围绕堰周围的堰顶上均匀流动,润滑剂可以被引导到需要均匀方式润滑的机器零件,围绕移动装置的圆周。