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Based on the analysis of bistatic SAR geometry model, bistatic SAR echoed signal is modeled in the double range variables domain in this paper, and the relationship between the double range variable domain and the single range variable domain is established. Then a range-dependent Doppler algorithm for imaging processing airborne bistatic SAR raw data of the translationally invariant configuration is derived, and the effect of error of the algorithm is analyzed by simulating.

摘要该文通过对机载双基地SAR非移变几何模型的分析，建立了双距离变量域的回波信号模型，由于回波数据是在距离和域，该文推导了距离和变量与双距离变量的转换关系，解决了该模型向距离和变量域转换的问题；提出了适用于非移变模式的变多普勒参数的双基地RD算法，并对该算法中引入变多普勒斜率所存在的误差进行了仿真分析。

The VSCF DFIG wind power generation is transient response proceeding, which is influenced by operation characteristics of generator before and after grid connected. A novel S-Function is adopted to describe the mathematic model of DFIG based on state equation. A complete simulation model of VSCF DFIG wind power generation system based on MATLAB/Simulink and SimPowerSystems is established, which can be used to not only simulate subsystems of no-load operation and generation operation, as well as can be used to but also accurate control parameters of DFIG in simulation. The simulation model have excellent transportability, and can be used DFIG of different power rated if only design relevant controller.

变速恒频双馈电机风力发电是一个受并网前后发电机运行状况影响的暂态过程，利用MATLAB的S-Function编写DFIG的仿真程序，然后结合Simulink和SimPowerSystems工具箱，开发了基于S-Function的空载运行和发电运行的变速恒频双馈电机风力发电子系统模型，在仿真过程中可对双馈电机进行精确控制，然后对其进行了系统整合，本文开发的模型具有可移植性，只要再设计相应的控制器，就可应用于不同功率等级的双馈电机风力发电系统。

Marine birnavirus, a member of the genus Aquabirnavirus, family Birnaviridae, is an unenveloped icosahedral virus with two genomes of double-stranded RNA.

海生双RNA病毒是类无囊膜、正二十面体、带有两节段双链RNA基因组的病毒，属于双RNA病毒科水生双RNA病毒属成员。

The realization monolithic integrated circuit system double audio frequency, this radio has used double audio frequency decoding chip MT8870, demodulates the tonic train signalling from the frequency-modulated signal, and separates the double tonic train signalling from the tonic train signalling to enter the double audio frequency decoding electric circuit implementation letter command to decode, thus carries on the low gear rate using the frequency modulation channel the control command transmission.

为实现单片机控制的双音频解码，本收音机采用了双音频译码芯片MT8870，从调频信号中解调出音频信号，并从音频信号中分离出双音频信号进入双音频解码电路实行信令解码，从而利用调频信道进行低速率的控制指令的传输。

Whenever a batter hits into a double play, the double play is constituted by a sequence of physical events. It does not follow, however, that we could redene "double play" in terms of precise sequences of physical motions. This is so despite the fact that, if a particular physical sequence constitutes a double play, any physically indiscernible sequence would constitute a double play as well. So being a double play "supervenes" on physical sequences.

无论何时，例如在散打中，一个击打得了两分，这个两分击打是被一连串物理事件所构成，它并不由此得到我们可以根据精确的连续的物理运动来重新定义&双分击打&，尽管事实是，如果一个特殊的物理连续构成了双分击打，但任何物理上难以区别的连续运动也会构成双分击打、（所以，是双分击打，附加在物理连续上。

Base Station type Software versionTypes of carrier frequency board adoptedTypes of combiner adoptedWhether had obtained the network license or notIndoor type or outdoor type Whether the master port is separated from the remote-port The maximum carrier frequency capacity of single cabinet The maximum supportable sector numbers of single cabinetWhether it is dual-carrier frequency board or notMust it be paired configuration if it's dual-carrier frequency board (namely, the type of single carrier frequency station could only configure the dual-carrier frequency on hardware) The maximum achievable configuration of a single station of the single cabinetReceiver sensitivity The maximum expand capacity of a single base station (the maximum number of TRX in configuration / the number of cabinets which is required)(fill in according with the three sectors) Top box transmitted power (given separately a grade one combine and a grade two combine) The maximum output power of amplifier (voice, a single logical carrier frequency) The maximum output power of amplifier (EGPRS, a single logical carrier frequency)Whether it has tower-interfaceWhether it has built-in lightning protectionWhether it support the ultra-long cover / whether it need for software support (give simple description that how hardware and software could achieve this) The supporting condition of EGSM (it should be supported including by the carrier frequency, combiner) Dual-band carrier wave (whether it supports the mixed use of 900 M/1800M in the same cabinet) The commonality of duplicate parts Whether it can built-in transmission unitThe single cabinet size (high × width × deep) Installation method Whether it can place against the wallThe basic frame full-configured weight and the supportable number of carrier frequencyThe expansion frame full-configured weight and the supportable number of carrier frequency

基站型号软件版本号采用载频板型号采用合路器型号是否已取得入网许可室内型or室外型是否是主远端分离单机柜最大载频容量单机柜最大支持的扇区数是否是双载频板如是双载频板，是否必须成对配置(即单载频站型只能硬件配置双载频)单机柜可达到的单站最大配置接收机灵敏度单基站最大扩展能力(最大配置TRX数/需机柜数)(按3扇区填写)机顶发射功率(分别给出一级合路与两级合路)功放最大输出功率功放最大输出功率(EGPRS，单个逻辑载频)有无塔放接口有无内置避雷装置是否支持超远覆盖/是否需要软件支持(简单描述软硬件如何实现)EGSM支持情况(包括载频、合路器均应支持)双频段载波（是否支持900M/1800M在同一机柜内混合使用）备件通用性是否可以内置传输单元单机柜尺寸安装方式可否靠墙放置基本架满配重量及支持载频数扩容架满配重量及支持载频数是否支持基本架与扩容架跨扇区满配功耗满配时重量供电方式机柜进出线方式合路器损耗合路能力：几合一单扇区最大支持几载频合路到一副天线/采用几个合路器单扇区载频达到需要增加一副天线时，是否支持两级合路换以不增加天线如两级合路插损为是否支持基带跳频和合成跳频每单个合路器在从低载频数向高载频数扩容时，是否还需要增加硬件可用性指标MTBFMTTR系统中断服务时间硬件是否支持EGPRS本次报价软件版本号开始支持EGPRS的软件版本号其他特点注： 1 应分别填写出来按照本次报价要求所采用的全部BTS型号和采用的合路器型号 2 列出本报价要求的全部室外型基站与高功放单元

In order to study the double bottom fermentation under solid conditions, the technique of yellow water closure was applied to make bottom grains not steeping by yellow water, to make yellow water flow smoothly without passing bottom grains and to make the quality of bottom grains not affecting by yellow water.

研究固态条件下的双轮底发酵，我们采取截流黄水的方法，使黄水不浸泡双轮底糟和在滴窖时不经过双轮底糟就能顺利滴出，双轮底糟的质量不受到黄水的瓜分和影响。

The purpose of this work is to develop new methods for syntheses of polyimides derived from chlorophthalic anhydrides.

本工作的目的是以氯代苯酐和二胺为原料，制备双氯代酞酰亚胺单体，然后进行聚酰亚胺合成方法的研究，以达到减少合成步骤，降低其生产成本的目的，主要内容如下： 1由双氯代酞酰亚胺与双酚A在不同体系中进行聚合反应，发现双酚是否完全成盐和聚合体系含水量是决定聚合物分子量的关键因素。

objective to establish immunological methods specific for detecting antigens in different groups of monoclonal antibodies.methods indirect immnofluorescence assay was applied to identify specificity of the two groups of monoclonal antibodies prepared with crude antigen and recombinant antigen of aspergillus fumigatus,respectively.two different double monoclonal antibody sandwich elisa assays established with the two groups of antibodies were performed to detect antigents in the cell culture supermatants of 19 common species of aspergillus,penicillium marneffei,and 5 species of candidas.results the results of indirect immnofluorescence assay indicated that the monoclonal antibodies prepared with crude antigen of aspergillus fumigatus were specific for antigens in both clinical isolates and environmental isolates of aspergillus, whereas the other group of monoclonal antibodies was proved to be specific for aspergillus fumigatus of both clinical and environmental isolates.the elisa assay established with the crude antigen-specfic monoclonal antibodies could detect both of the clinical and environmental isolates of aspergllius, while the other assay could only detect aspergillus fumigatus of both clinical and environmental isolates.and no cross reaction with the cell culture of penialllium marneffei and candidas was observed with the two methods.conclusion the elisa assays can detect both of the clinical and environmental isolates of aspergillus,and differentiate aspergillus fumigatus from other species of aspergillus.

目的 用2组曲霉单克隆抗体建立特异性识别不同种类曲霉抗原的检测方法。方法采用天然烟曲霉抗原免疫，获得广谱针对曲霉抗原的单克隆抗体；采用重组烟曲霉抗原获得特异性针对烟曲霉抗原的单克隆抗体，用间接免疫荧光鉴定，并分别建立2种双抗体夹心elisa法，对19种常见的环境和临床分离曲霉株、马尔尼菲氏青霉菌及念珠菌培养液进行检测。结果间接免疫荧光显示，用天然烟曲霉抗原免疫获得的单克隆抗体(mabs-1)可广谱识别多种曲霉分离株，而重组烟曲霉抗原获得的单克降抗体(mabs-2)仅能特异性结合临床和环境分离的烟曲霉抗原。用mabs-1建立的双抗体夹心elisa法可检测19种常见曲霉株培养液；用特异性针对烟曲霉抗原单克降抗体(mabs-2)建立的双抗体夹心elisa法可特异性检测临床和环境分离株烟曲霉培养液；与其他曲霉株无交叉反应；2种双抗体夹心elisa法与马尔尼菲氏青霉菌及念珠菌培养液均无交叉反应。

Objective:Observes the babies and infants use nasal cannulae or changed two-sided hole pipe attracts the oxygen effect,to evaluate the nasal cannulae and the changed two-sided hole pipe attracts the oxygen to the babies and infants oxygen treatment effect is whether same.

目的：观察婴幼儿双孔吸氧管吸氧和改良双侧孔导管吸氧效果，评价双孔吸氧管吸氧和改良双侧孔导管吸氧法对婴幼儿氧疗效果是否相同。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。