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    Optical Characteristics of Metal Clad Dielectric Waveguide Near Cutoff
    金属覆盖介质波导在截止点附近的光学特性
    Simulation results show that the mixer can operate properly at 2.4 GHz frequency with a single power supply of 0.8 V,and it achieves a conversion gain of-8.5 dB with 3rd-order input intercept point(IIP3) at 28.4 dB.
    结果显示,该混频器在0.8 V单电源电压下,仍可以对2.4 GHz的正弦信号进行混频,转换增益为-8.5 dB,三阶输入截止点的值为28.4 dB。
    The simulation result shows that the mixer can work properly at 2.4GHz frequency with a single power supply of 0.8V. The conversion gain of this mixer is -8.5dB, and the Third-order Input Intercept Point (IIP3) is 28.4dB.The author analyses the linearity of Gilbert topology based on principle of Volttera.
    基于TSMC 0.25μm CMOS工艺的BSIM3V3模型,采用Hspice对混频器进行了模拟仿真,仿真结果显示,该混频器在0.8V的单电源电压下,仍可以对2.4GHz的正弦信号进行混频,转换增益为-8.5dB,三阶输入截止点的值为28.4dB。 最后基于Volttera级数原理,深入研究了Gilbert结构的线性度。
    ThesensitivitiesofMCAPI,UAPIandUAPI/MCAPIratioforpredictingIUGRwere80.64%,70.96%and87.09%respectivelyatthecutoflevelwith2standarddeviation(SD).
    以二个标准差作为截止点水平,MCAPI、UAPI和UAPI/MCAPI比值预测IUGR的敏感性分别为80.64%、70.96%和87.09%;
    Using Hspice simulator and BSIM3V3 models for TSMC 0.25μm CMOS process, the mixer was simulated. The simulation result shows that the mixer can work properly at 2.4GHz frequency with a single power supply of 0.6V. The conversion gain of this mixer is -21.8dB, and the Third-order Input Intercept Point (IIP3) is 34.6dB.
    基于TSMC0.25μmCMOS工艺的BSIM3V3模型,采用Hspice对混频器进行了仿真,仿真结果显示,该混频器在0.6V的单电源电压下,仍可以对2.4GHz的正弦信号进行混频,转换增益为-21.8dB,三阶输入截止点的值为34.6dB。
    When the power supply is 0.8 V,the oscillation frequency is 20 MHz and 100 MHz,the radio frequency is 1 G and 2.4 G,the conversion gain of bulk-driven is -17.95 dB and -8.5 dB, the IIP3 of bulk-driven mixer is (33.2 dB) and (28.4 dB).
    在电源电压为0.8 V,本征频率和射频频率分别是20 MHz、100 MHz和1 GHz、2.4 GHz的输入正弦信号时,衬底驱动混频器的转换增益为-17.95 dB和-8.5 dB,三阶输入截止点的值为 33.2 dB和 28.4 dB;
    With 2.5 V supply voltage, the described mixer has achieved a conversion gain of 11.095 dB, a noise figure of 8.836 dB, 1 dB compression point of -13.6 dBm, and IIP3 of -3.72 dBm. Power consumption in the mixer core is 13.5 mW.
    经仿真在2.5 V电压下,取得变频增益(Gc)为11.095 dB、噪声系数(NF)为8.836 dB1、dB压缩点(P1dB)为-13.6 dBm、三阶输入截止点(IIP3)为-3.72 dBm、功耗为13.5 mW的较好结果.
    With 2.5 V supply voltage,the front-end is simulated to achieve a gain of 22.5 dB,a noise figure of 6.3 dB,and an input third-order intercept point of-15.3 dBm. The circuit dissipates 38.4 mW of power.
    在2.5 V工作电压下,整个接收机前端增益22.5 dB,噪声系数6.3 dB,三阶输入截止点-15.3 dBm,功耗38.4 mW。
    Analysis of Propagation Characteristics of Metal-clad Planar Wa veguides in Near Cutoff
    金属包层平板光波导在截止点附近的光学特性
    Influence of Vacuum Dead\|point on Gas Hole for Die Casting
    抽真空截止点的位置对压铸件气孔的影响
    Influence of Vacuum Dead-point on Gas Hole for Die Casting
    抽真空截止点的位置对压铸件气孔的影响
    Part 2 Transduction efficiency assay of recombinantadenovirus in vivoObjective: to detect the transduction efficiency of Adenovirus vector inmice bearing-G422 glioblastoma, determine the best dosage and approach when gene therapy.
    方法:成瘤率研究中,用昆明种小鼠93只,共分为3组,每组31只,分别接种单纯G422细胞,G422+Ad一GFP和G422+Ad一mEnd,每天观察接种部位,接种后20天为截止点计算成瘤小鼠比率,测量肿瘤组织块体积增长速度情况;
    Chapter 3 singles out for more technical considerations on two much-discussedlegal instruments devised by the landowners---entail and use, and this essay closedon the year 1540 because it's just the year that passed the statute of will which gave the absolute freedom of controlling their land.
    本文截止点选在1540年是考虑到此年通过了赋予地产主完全自由遗赠土地的遗嘱法令(the statute of will)。
 

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