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    Argon purification
    8.
    发明授权
    Argon purification 失效
    氩气净化

    公开(公告)号：US4477265A

    公开(公告)日：1984-10-16

    申请号：US405643

    申请日：1982-08-05

    申请人： Ravi Kumar ,  Shivaji Sircar ,  Thomas R. White ,  Eugene J. Greskovich

    发明人： Ravi Kumar ,  Shivaji Sircar ,  Thomas R. White ,  Eugene J. Greskovich

    IPC分类号： B01D53/047 ,  C01B23/00 ,  F25J3/04 ,  B01D53/04

    CPC分类号： B01D53/0446 ,  B01D53/0476 ,  C01B23/00 ,  F25J3/04733 ,  B01D2253/102 ,  B01D2253/108 ,  B01D2256/18 ,  B01D2257/102 ,  B01D2257/104 ,  B01D2259/402 ,  B01D2259/41 ,  B01D2259/4145 ,  B01D2259/416 ,  F25J2205/60 ,  F25J2205/82

    摘要： Argon is recovered from a gas stream comprising the same in admixture with oxygen and nitrogen, by a vacuum swing adsorption (VSA) process wherein the mixed gas is passed through an adsorbent bed having thermodynamic selectivity for adsorption of nitrogen and the unadsorbed portion then passed through a second adsorbent bed having kinetic selectivity for retaining oxygen. Both adsorbent beds are regenerated by vacuum desorption, applied to the first bed for a longer time period than that of the second bed. Further purification of the recovered argon may be carried out, if desired, by catalytic hydrogenation of residual oxygen therein. The mixed gas stream fed to the VSA unit may be that obtained from the crude argon column associated with a cryogenic air separation plant and the waste gas from the VSA unit may be recycled to the main column of the cryogenic air separation plant, thus enhancing argon recovery.

    摘要翻译： 通过真空挥发吸附（VSA）方法从包含该氧气和氮气的气流中回收氩气，其中混合气体通过具有用于吸附氮的热力学选择性的吸附剂床，然后未吸附的部分通过 具有保持氧的动力学选择性的第二吸附床。 两种吸附剂床均通过真空解吸再生，与第二床相比施加到第一床上更长的时间段。 如果需要，可以通过对其中的残余氧的催化氢化来进行回收的氩的进一步纯化。 供给到VSA单元的混合气流可以是从与低温空气分离设备相关联的粗氩塔获得的，并且来自VSA单元的废气可以再循环到低温空气分离设备的主塔，从而增强氩 复苏。

    Uplink and bi-directional traffic classification for wireless communication
    9.
    发明授权
    Uplink and bi-directional traffic classification for wireless communication 有权
    无线通信的上行链路和双向流分类

    公开(公告)号：US08634399B2

    公开(公告)日：2014-01-21

    申请号：US11504413

    申请日：2006-08-11

    申请人： Khac Thai ,  John Y. Chao ,  Qiang Fu ,  Ravi Kumar

    发明人： Khac Thai ,  John Y. Chao ,  Qiang Fu ,  Ravi Kumar

    IPC分类号： H04J3/24 ,  H04J3/06 ,  H04W28/26 ,  H04L12/56 ,  H04L5/00

    CPC分类号： H04J3/0685 ,  H04L5/0064 ,  H04L47/10 ,  H04L47/14 ,  H04L47/2441 ,  H04L47/805 ,  H04W28/26

    摘要： Techniques for performing traffic classification for uplink and bi-directional traffic streams are described. A station receives packets for transmission on the uplink to an access point. The station identifies packets for each uplink traffic stream and packets for each bi-directional traffic stream based on at least one classification parameter for each traffic stream. The station sends packets for each traffic stream in accordance with at least one QoS parameter for the traffic stream. The access point receives packets for transmission on the downlink to at least one station. The access point identifies packets for each downlink traffic stream and packets for each bi-directional traffic stream based on at least one classification parameter for each traffic stream. The access point sends packets for each traffic stream in accordance with at least one QoS parameter for the traffic stream.

    摘要翻译： 描述了用于执行上行链路和双向业务流的流分类的技术。 站点接收分组，以在上行链路上接入点进行传输。 该站基于每个业务流的至少一个分类参数来识别每个上行链路业务流的分组和每个双向业务流的分组。 工作站根据业务流的至少一个QoS参数为每个业务流发送数据包。 接入点接收用于在下行链路上传输到至少一个站的分组。 接入点基于每个业务流的至少一个分类参数来识别每个下行链路业务流的分组和每个双向业务流的分组。 接入点根据用于业务流的至少一个QoS参数为每个业务流发送分组。