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    • 8. 发明授权
    • Method for determining gas hold-up
    • 确定气体滞留量的方法
    • US5551281A
    • 1996-09-03
    • US244359
    • 1994-05-26
    • Robert W. Todd
    • Robert W. Todd
    • C12M1/34G01N27/22G01N33/487G01N11/00G01R11/52
    • G01N33/48735
    • A method and apparatus for determining gas hold-up in a fermentation culture, in which, prior to aeration and during fermentation, a high frequency alternating signal is input to electrodes in electrical contact with the culture, the magnitude of the reactive current signal leading the voltage in the electrode circuit is determined and the difference in said magnitudes prior to aeration and during fermentation is used as a measure of the gas hold-up. The system may be combined with various methods of measuring biomass to give a gas hold-up corrected value of biomass.
    • PCT No.PCT / GB93 / 00011 Sec。 371日期:1994年5月26日 102(e)日期1994年5月26日PCT提交1993年6月1日PCT公布。 公开号WO93 / 14402 日期1993年7月22日一种用于确定发酵培养物中气体滞留量的方法和装置,其中在通气和发酵之前,将高频交替信号输入到与培养物电接触的电极, 确定导致电极电路中的电压的无功电流信号,并且将通气前和发酵期间的所述幅度的差用作气体滞留量的量度。 该系统可以与各种测量生物质的方法结合,以产生气体滞留校正的生物量值。
    • 9. 发明授权
    • Wide span overhead door
    • 宽跨度门
    • US4545417A
    • 1985-10-08
    • US506023
    • 1983-06-20
    • Robert W. Todd
    • Robert W. Todd
    • E05D15/26
    • E05D15/262E05D13/145E05Y2900/00E05Y2900/106
    • An overhead door, particularly intended for use in a structure having a wide opening, includes an upper section pivotally mounted by hinges to the header beam of the structure, and a taller lower section pivotally mounted to the bottom of the upper section by hinges. Guide tracks are mounted on the side door jambs of the building, and guide rollers are mounted adjacent each lateral side edge of the lower section arranged to be movably captured by the guide tracks during folding and unfolding of the door in opening and closing. A plurality of lift cables are connected at one of their ends to laterally spaced positions along the width of the lower door section and at the same height preferably above its vertical midpoint but below the point where the upper and lower sections are hinged together by a distance equal to or greater than the height of the upper section. The opposite ends of the lift cables are connected to a counterbalance.
    • 特别是用于具有宽开口的结构的顶部门包括通过铰链枢转地安装到结构的头梁的上部部分,以及通过铰链枢转地安装到上部的底部的较高的下部部分。 引导轨道安装在建筑物的侧门边框上,并且引导辊安装在下部的每个侧边缘附近,布置成在打开和关闭门的折叠和展开期间被引导轨迹可移动地捕获。 多个提升电缆在其一端部沿着下门部分的宽度连接到横向间隔开的位置,并且在相同的高度处优选地高于其垂直中点但在上部和下部部分铰接在一起的距离 等于或大于上部的高度。 提升电缆的相对端连接到平衡。