MRI/MRS gradient coil with integrated cooling circuits
    42.
    发明授权
    MRI/MRS gradient coil with integrated cooling circuits 有权
    具有集成冷却回路的MRI / MRS梯度线圈

    公开(公告)号:US07339376B2

    公开(公告)日:2008-03-04

    申请号:US11279107

    申请日:2006-04-09

    Applicant: Qin Liu

    Inventor: Qin Liu

    CPC classification number: G01R33/3856

    Abstract: Systems, methods and apparatus are provided through which heat produced in the patient examination space by the power used to create electromagnetic fields in an MRI/MRS system is significantly reduced by coolant carried by one of two split connected concentric coil layers of one of two of the primary gradient coils used to alter the main magnetic field. The coil carrying the coolant is made of copper tubing. The second primary gradient coil is placed between the layers of the split primary gradient coil. Adjusting the number of turns in each layer of the split primary gradient coil adjusts the heat generated. The inductances and resistances of the two primary gradient coils are balanced by adjusting the gain of the coils.

    Abstract translation: 提供了一种系统,方法和装置,通过这些系统,方法和装置,通过用于在MRI / MRS系统中产生电磁场的功率在病人检查空间中产生的热量被两个分开连接的同心线圈层之一 用于改变主磁场的主梯度线圈。 承载冷却剂的盘管由铜管制成。 第二主梯度线圈被放置在分裂初级梯度线圈的层之间。 调整分裂初级梯度线圈每层的匝数调节产生的热量。 通过调节线圈的增益来平衡两个主梯度线圈的电感和电阻。

    Bile compound and method of controlling behavior of lampreys therewith
    44.
    发明授权
    Bile compound and method of controlling behavior of lampreys therewith 失效
    胆汁化合物及其控制行为的方法

    公开(公告)号:US06881729B2

    公开(公告)日:2005-04-19

    申请号:US10207565

    申请日:2002-07-29

    CPC classification number: A01N45/00

    Abstract: Novel compounds isolated from the bile of male sea lampreys are described, in particular, 7α,12α,24-trihydroxy-5α-cholan-3-one-24-sulfate and 7α,12α-dihydroxy-5α-cholan-3-one-24-oic acid and an ELISA for detecting the compounds. The bile compounds act as pheromones which attract female sea lampreys in water to the point in the water where the compounds had been introduced. The bile compounds are useful in lamprey population management programs where it is desirable to control the locomotion and distribution of lampreys and in food operations where it enhances the efficiency of catching lampreys for food.

    Abstract translation: 从男性海胆胆汁中分离的新型化合物,特别是7α,12α,24-三羟基-5α-胆碱-3-酮-24-硫酸盐和7α,12α-二羟基-5α-胆碱-3-酮的新型化合物, 24-酸和用于检测化合物的ELISA。 胆汁化合物起着信号素的作用,吸引了女性海水中的水分,直到引入化合物的水中。 胆汁化合物可用于芸香种群管理计划,其中需要控制灯泡的运动和分布以及食物操作,从而提高捕捉食物的效率。

    Fluid-jet ejection device
    45.
    发明授权
    Fluid-jet ejection device 失效
    流体喷射装置

    公开(公告)号:US06481832B2

    公开(公告)日:2002-11-19

    申请号:US09774259

    申请日:2001-01-29

    Abstract: The invention is a fluid ejection device, such as a printhead, that has a substrate with a first surface mating to an orifice layer, preferably through a stack of thin-film layers. The orifice layer defines a fluid chamber interfacing to an orifice opening or nozzle. The substrate has a second surface having a truncated pyramidal structure; either polyhedral or triangular ridge shaped defining an opening through the substrate to the fluid chamber. The substrate further has an ejection element, preferably disposed as a resistor in the stack of thin-film layers. When energy is transferred from the ejection element to the fluid in the fluid chamber, fluid is ejected from the orifice opening. The fluid ejection device may have one or a plurality of fluid chambers and one or a plurality of frustums of a truncated polyhedral, truncated pyramidal, truncated conical or truncated triangular cross-sectional ridge structures defining openings from the second surface of the substrate to the fluid chambers.

    Abstract translation: 本发明是一种流体喷射装置,例如打印头,其具有基底,其具有与孔层相匹配的第一表面,优选地通过一叠薄膜层。 孔口层限定与孔口或喷嘴连接的流体室。 基板具有具有截头棱锥结构的第二表面; 多面体或三角形脊形,限定通过基底的开口到流体室。 衬底还具有优选地设置在薄膜层堆叠中作为电阻器的喷射元件。 当能量从喷射元件转移到流体室中的流体时,流体从孔口排出。 流体喷射装置可以具有一个或多个流体室和一个或多个截头圆锥体,其截断的多面体,截头锥体,截头圆锥形或截头三角形横截面脊结构限定从衬底的第二表面到流体的开口 房间。

    METHOD AND APPARATUS FOR FREQUENCY DOMAIN EXUALIZATION BASED UPON A DECISION FEEDBACK IN A TDS-OFDM RECEIVER
    48.
    发明申请
    METHOD AND APPARATUS FOR FREQUENCY DOMAIN EXUALIZATION BASED UPON A DECISION FEEDBACK IN A TDS-OFDM RECEIVER 审中-公开
    基于TDS-OFDM接收机中的决策反馈的频域实现的方法和装置

    公开(公告)号:US20080025384A1

    公开(公告)日:2008-01-31

    申请号:US11550342

    申请日:2006-10-17

    Abstract: A device for equalization adapted for receiving a symbol and a channel frequency response is provided. The device includes a slicer for delimiting the channel frequency response to a sliced channel frequency response based upon a signal constellation; and a divider for dividing the received symbol using the sliced channel frequency response as the divider, with a resultant quotient of the divider as a reference point for future received symbols.

    Abstract translation: 提供一种用于均衡的装置,用于接收符号和信道频率响应。 所述设备包括限幅器,用于基于信号星座将所述信道频率响应定界为限幅信道频率响应; 以及用于使用分片信道频率响应分割接收到的符号作为分频器的除法器,分频器的合成商作为未来接收符号的参考点。

    MRI/MRS Gradient Coil with Integrated Cooling Circuits
    49.
    发明申请
    MRI/MRS Gradient Coil with Integrated Cooling Circuits 有权
    具有集成冷却电路的MRI / MRS梯度线圈

    公开(公告)号:US20070236218A1

    公开(公告)日:2007-10-11

    申请号:US11279107

    申请日:2006-04-09

    Applicant: Qin Liu

    Inventor: Qin Liu

    CPC classification number: G01R33/3856

    Abstract: Systems, methods and apparatus are provided through which heat produced in the patient examination space by the power used to create electromagnetic fields in an MRI/MRS system is significantly reduced by coolant carried by one of two split connected concentric coil layers of one of two of the primary gradient coils used to alter the main magnetic field. The coil carrying the coolant is made of copper tubing. The second primary gradient coil is placed between the layers of the split primary gradient coil. Adjusting the number of turns in each layer of the split primary gradient coil adjusts the heat generated. The inductances and resistances of the two primary gradient coils are balanced by adjusting the gain of the coils.

    Abstract translation: 提供了一种系统,方法和装置,通过这些系统,方法和装置,通过用于在MRI / MRS系统中产生电磁场的功率在病人检查空间中产生的热量由两个分开连接的同心线圈层之一 用于改变主磁场的主梯度线圈。 承载冷却剂的盘管由铜管制成。 第二主梯度线圈被放置在分裂初级梯度线圈的层之间。 调整分裂初级梯度线圈每层的匝数调节产生的热量。 通过调节线圈的增益来平衡两个主梯度线圈的电感和电阻。

Patent Agency Ranking