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    • 52. 发明授权
    • Multi-loop receiver coil having a large tuning range for a magnetic resonance imaging system
    • 具有用于磁共振成像系统的大调谐范围的多回路接收器线圈
    • US07253626B2
    • 2007-08-07
    • US11156208
    • 2005-06-17
    • Jian Min WangBei Zhang
    • Jian Min WangBei Zhang
    • G01V3/00
    • G01R33/3628
    • A receiver coil loop for a magnetic resonance imaging system has a tuning loop for adjusting a tuning capacitor to make the tuning loop resonate at a center frequency a detuning loop for maintaining the receiver coil loop in a non-working state when the transmitter coil is emitting signals, and a matching loop for matching the tuning loop at the center frequency. The tuning loop and the detuning loop share a capacitor, and the tuning capacitor and the shared capacitor are connected in parallel. In such a receiver coil loop, the value of the tuning capacitor is reduced, the frequency tuning range of the tuning capacitor is broadened; the capacitive reactance generated by the entire circuit is reduced, and the tuning capacitor Ctuning is protected against breakdown under high voltage without increasing the loss of the circuit.
    • 用于磁共振成像系统的接收器线圈环路具有用于调整调谐电容器的调谐回路,以使调谐回路以中心频率谐振失谐回路,以在发射器线圈发射时将接收器线圈环保持在非工作状态 信号和匹配环路,用于匹配中心频率的调谐环路。 调谐回路和失谐回路共用一个电容,调谐电容和共享电容并联。 在这样的接收线圈环路中,调谐电容器的值减小,调谐电容器的频率调谐范围变宽; 整个电路产生的电容电抗减小,并且调谐电容器Ctuning可以在高电压下防止击穿,而不会增加电路的损耗。
    • 53. 发明申请
    • Receiver coil loop for a magnetic resonance imaging system
    • 用于磁共振成像系统的接收器线圈回路
    • US20060033500A1
    • 2006-02-16
    • US11156208
    • 2005-06-17
    • Jian WangBei Zhang
    • Jian WangBei Zhang
    • G01V3/00
    • G01R33/3628
    • A receiver coil loop for a magnetic resonance imaging system has a tuning loop for adjusting a tuning capacitor to make the tuning loop resonate at a center frequency a detuning loop for maintaining the receiver coil loop in a non-working state when the transmitter coil is emitting signals, and a matching loop for matching the tuning loop at the center frequency. The tuning loop and the detuning loop share a capacitor, and the tuning capacitor and the shared capacitor are connected in parallel. In such a receiver coil loop, the value of the tuning capacitor is reduced, the frequency tuning range of the tuning capacitor is broadened; the capacitive reactance generated by the entire circuit is reduced, and the tuning capacitor Ctuning is protected against breakdown under high voltage without increasing the loss of the circuit.
    • 用于磁共振成像系统的接收器线圈环路具有用于调整调谐电容器的调谐回路,以使调谐回路以中心频率谐振失谐回路,以在发射器线圈发射时将接收器线圈环保持在非工作状态 信号和匹配环路,用于匹配中心频率的调谐环路。 调谐回路和失谐回路共用一个电容,调谐电容和共享电容并联。 在这样的接收线圈环路中,调谐电容器的值减小,调谐电容器的频率调谐范围变宽; 整个电路产生的电容电抗减小,并且调谐电容器Ctuning可以在高电压下防止击穿,而不会增加电路的损耗。
    • 54. 发明授权
    • Method of identifying non-host plant disease resistance genes
    • 鉴定非寄主植物病害抗性基因的方法
    • US06544733B1
    • 2003-04-08
    • US09387286
    • 1999-08-31
    • Caius M. T. RommensKathleen M M SwordsHua YanBei Zhang
    • Caius M. T. RommensKathleen M M SwordsHua YanBei Zhang
    • C12Q168
    • C12N15/8279C07K14/415C12N15/8282
    • The invention describes a new method to isolate disease resistance genes in plants. The method teaches to transiently express in susceptible plants large numbers of R-gene homologs or non-host inducible genes isolated from non-host resistant plants. These plants can be screened for either disease resistance or ability to respond with a hypersensitive response to pathogen-elicitor subjection. The invention also reports several R-genes and non-host inducible genes that have been successfully isolated using the described method. These R-genes trigger a hypersensitive response in tobacco that is dependent on the presence of the ubiquitous P. infestans elicitor INF1. The presented R-genes are predicted to be both the first R-genes isolated that confer resistance against P. infestans and the first R-genes involved in non-host resistance.
    • 本发明描述了一种在植物中分离疾病抗性基因的新方法。 该方法教导在易感植物中瞬时表达大量来自非宿主抗性植物分离的R基因同源物或非宿主诱导型基因。 可以筛选这些植物的抗病性或者能够对病原体诱发剂施用过敏反应的能力。 本发明还报道了使用所述方法成功分离的几种R基因和非宿主诱导型基因。 这些R基因在烟草中引发过敏反应,其依赖于普遍存在的致病疫霉引发子INF1的存在。 所呈现的R基因被预测为分离的第一个R基因,其赋予对致病疫霉素的抗性以及涉及非宿主抗性的第一个R基因。