METHOD FOR SELECTING PARAMETERS FOR TUNNEL SUPPORT BASED ON ENGINEERING-ORIENTED BEHAVIOR DISCRIMINATION OF SURROUNDING ROCK

    公开(公告)号:US20240410280A1

    公开(公告)日:2024-12-12

    申请号:US18401727

    申请日:2024-01-02

    Abstract: A method for selecting parameters for tunnel support based on engineering-oriented behavior discrimination of surrounding rock includes: obtaining basic geological data of a running tunnel, establishing a model of a relative location relationship between the running tunnel and a stratum, and determining a chamber environment classification of a surrounding rock of the running tunnel; determining rock integrity of the surrounding rock of the running tunnel based on the basic geological data; determining a groundwater development level of the surrounding rock of the running tunnel based on the basic geological data; determining, based on the basic geological data, whether there is a slip surface on the surrounding rock of the running tunnel; and selecting support parameters for a corresponding support measure based on behavior of the surrounding rock including the chamber environment classification, the rock integrity, the groundwater development level, and whether the slip surface exists.

    Method and Terminal Device for Automatically Tuning Impedance Matching of Multi-Frequency Band Antenna
    4.
    发明申请
    Method and Terminal Device for Automatically Tuning Impedance Matching of Multi-Frequency Band Antenna 有权
    用于自动调谐多频带天线阻抗匹配的方法和终端设备

    公开(公告)号:US20140323065A1

    公开(公告)日:2014-10-30

    申请号:US13977048

    申请日:2011-12-30

    Applicant: Gang Lei

    Inventor: Gang Lei

    Abstract: This invention provides a method and a terminal device for a multi-band antenna automatically tuning impedance matching, and belongs to the technical field of communication. The method includes: obtaining an operation current value and an output power value of a power amplifier upon transmitting a signal; obtaining a logical control parameter for controlling an antenna tuner based on the operation current value and the output power value, and adjusting the impedance matching of the antenna by using the logical control parameter. The efficiency for impedance matching of the antenna upon operating in the multi-bands may be improved, and the power saving can be better implemented under the condition of assuring the performance of the antenna.

    Abstract translation: 本发明提供一种用于多频带天线自动调谐阻抗匹配的方法和终端装置,属于通信技术领域。 该方法包括:在发送信号时获得功率放大器的工作电流值和输出功率值; 基于操作电流值和输出功率值获得用于控制天线调谐器的逻辑控制参数,并且通过使用逻辑控制参数来调整天线的阻抗匹配。 可以提高在多频带中操作时天线的阻抗匹配效率,并且在确保天线的性能的条件下可以更好地实现功率节省。

    Aerated Swirling Vertical Shaft with Double Volute Chambers
    5.
    发明申请
    Aerated Swirling Vertical Shaft with Double Volute Chambers 有权
    带双涡流室的加气旋转垂直轴

    公开(公告)号:US20130276926A9

    公开(公告)日:2013-10-24

    申请号:US13643775

    申请日:2010-07-28

    Abstract: An aerated swirling vertical shaft with double volute chambers comprises an upper volute chamber (2) and a first shrinking section (3) beneath the upper volute chamber (2), a venting passage (4) outside the upper volute chamber (2), a vertical shaft section (7) beneath the first shrinking section (3), as well as an aerated lower volute chamber (5) and a second shrinking section (6) communicated with the aerated lower volute chamber (5) between the first shrinking section (3) and the vertical shaft section (7), wherein the upper end of the aerated lower volute chamber (5) is connected with the first shrinking section (3), the lower end of the second shrinking section (6) is connected with the vertical shaft section (7); the upper end of the venting passage (4) is communicated with the atmosphere and the lower end is communicated with the aerated lower volute chamber (5). The water stream in the vertical shaft can be discharged smoothly and the wall surface of the vertical shaft may avoid being destroyed due to cavitation and cavitation erosion.

    Abstract translation: 具有双涡卷室的充气旋转垂直轴包括在上蜗壳(2)下方的上蜗壳室(2)和第一收缩部分(3),在上蜗壳室(2)外部的排气通道(4) 第一收缩部分(3)下方的垂直轴部分(7)以及在第一收缩部分(5)和第二收缩部分(6)之间连通的充气下部蜗壳室(5)和第二收缩部分(6) 3)和垂直轴部(7),其中,充气下蜗壳室(5)的上端与第一收缩部(3)连接,第二收缩部(6)的下端与 垂直轴段(7); 通气通道(4)的上端与大气连通,下端与充气的下蜗壳室(5)连通。 垂直轴中的水流可以平稳地排出,垂直轴的壁面可以避免由于空化和空化侵蚀而被破坏。

    Method and terminal device for automatically tuning impedance matching of multi-frequency band antenna
    6.
    发明授权
    Method and terminal device for automatically tuning impedance matching of multi-frequency band antenna 有权
    自动调谐多频段天线阻抗匹配的方法和终端设备

    公开(公告)号:US09160395B2

    公开(公告)日:2015-10-13

    申请号:US13977048

    申请日:2011-12-30

    Applicant: Gang Lei

    Inventor: Gang Lei

    Abstract: This invention provides a method and a terminal device for a multi-band antenna automatically tuning impedance matching, and belongs to the technical field of communication. The method includes: obtaining an operation current value and an output power value of a power amplifier upon transmitting a signal; obtaining a logical control parameter for controlling an antenna tuner based on the operation current value and the output power value, and adjusting the impedance matching of the antenna by using the logical control parameter. The efficiency for impedance matching of the antenna upon operating in the multi-bands may be improved, and the power saving can be better implemented under the condition of assuring the performance of the antenna.

    Abstract translation: 本发明提供一种用于多频带天线自动调谐阻抗匹配的方法和终端装置,属于通信技术领域。 该方法包括:在发送信号时获得功率放大器的工作电流值和输出功率值; 基于操作电流值和输出功率值获得用于控制天线调谐器的逻辑控制参数,并且通过使用逻辑控制参数来调整天线的阻抗匹配。 可以提高在多频带中操作时天线的阻抗匹配效率,并且在确保天线的性能的条件下可以更好地实现功率节省。

    Diode-pumped laser
    7.
    发明授权
    Diode-pumped laser 有权
    二极管泵浦激光器

    公开(公告)号:US07260133B2

    公开(公告)日:2007-08-21

    申请号:US11012362

    申请日:2004-12-15

    Abstract: A diode-pumped laser with a direct edge coupling of a pump beam is provided. The laser includes a microchip laser cavity optically pumped by a laser diode emitting an astigmatic pump beam having a substantially elliptical beam cross-section at an output laser diode facet. The microchip laser cavity is disposed at a substantial distance exceeding 0.001″ from the laser diode pump where the astigmatic pump beam has a greatly reduced ellipticity, providing high laser output efficiency without coupling lens element between the laser cavity and the laser diode pump. The pumping arrangement is favourable for single-mode lasing. In some embodiments, the laser cavity includes nonlinear crystal for intra-cavity SHG, a saturable absorber for passive Q-switching and mode locking, and a polarizing prism.

    Abstract translation: 提供了具有泵浦光束的直接边缘耦合的二极管泵浦激光器。 激光器包括由激光二极管光泵浦的微芯片激光器腔体,该激光二极管在输出激光二极管面处发射具有基本椭圆形光束横截面的像散泵浦光束。 微激光器激光腔设置在距离激光二极管泵超过0.001“的实质距离处,其中散光泵浦光束具有大大降低的椭圆率,在激光腔和激光二极管泵之间提供高激光输出效率而不耦合透镜元件。 泵浦装置有利于单模激光。 在一些实施例中,激光腔包括用于腔内SHG的非线性晶体,用于无源Q开关和模式锁定的可饱和吸收器和偏振棱镜。

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