By measuring the Ka band up-converter assembly, the results of the test show that this assembly has the better conversion loss, the higher rejection ratio to LO, inter-modulation signals and spurious signals, the better amplitude-frequency characteristic and the smaller geometry size.
通过对Ka波段混频器的测试，实测数据表明该混频器具有较好的变频损耗，较高的端口隔离度以及较小的端口驻波系数，达到了设计指标的要求。
Another important characteristic during the curing process is the volumetric shrinkage due to the resin polymerization reaction. The thermal residual stress and chemical shrinkage stress will be serious due to the non-uniform temperature and conversion distributions.
由于固化过程中复合材料内部温度分布不均匀，固化度不一致，树脂将发生不同程度的热膨胀和固化收缩，从而引起残余热应力和固化收缩应力。
Features are: isolated measurement of signal, raised precision of A/D conversion caused by first order oversampling characteristic utilized in counting process, and linear phase characteristic to ensure undistorted sampled wave form.
本发明方法不仅保证了信号的隔离测量，还利用计数过程的一阶过采样特性，通过滤波降频方法提高了模数转换的精度；本发明系统能够实现线性相位特性，从而保证采样波形不失真；本发明还适合于多路信号同步采样的测量应用。
There was the obvious characteristic in the fertility conversion of Brassica napus male sterile line Guiyin AB. The temperature was main factor affecting the fertility conversion; the high-temperature promoted the development of male but low temperature; and the light did not significantly affect the fertility conversion.
结论］甘蓝型油菜核不育两型系贵引AB不育株育性转换特性明显，温度是控制贵引AB不育株育性转换的主要因素，高温有利于其雄性发育，低温不利于其雄性发育，光照对其育性没有明显影响。
For process control, the more interested ones are the characteristic parameters of the chemical process, as reaction rate, conversion, catalyst activity and selectivity, etc.
随着计算机在工业装置上的普及、工艺过程数学模型的深入研究的发展和现代控制理论的结合，使上述参量在线检测成为可能。
With respect to the extensively used 1.25Cr0.5Mo steel in high-temperature equipments of petrochemical enterprises, based on enormous amount of fatigue creep tests and fracture analysis on them, the major factors of their exhaustion creep behavior and their service life are analyzed, four kinds of fracture characteristic charts that can reflect the relationship for mutual conversion among fatigue damage, creep damage and fatigue-creep interactive damage, the judgment condition for exemption from creep failure analysis is proposed and fatigue creep life prediction method and damage evaluation method are established in this paper.
本文针对石化企业高温设备中广泛使用的1.25Cr0.5Mo钢，在对其进行了大量的疲劳蠕变试验和断口分析的基础上，分析了影响疲劳蠕变行为及其寿命的主要因素，建立能反映疲劳损伤、蠕变损伤及疲劳蠕变交互作用损伤相互转换关系的四种断裂特征图，提出了免于蠕变失效分析的判定条件，建立了疲劳蠕变寿命预测方法和损伤评估方法。
Now there are several means can express the flow rate characteristic of pneumatic component. It is necessary to make clear their meanings and relation. It is useful for understanding the meaning of flow rate characteristic and parameter conversion.
目前有几种方法可以表示气动元件的流量特性，弄清它们含义和之间的关系是必要的，这有利于流量特性意义的理解和参数之间的转换。
The testing method comprises the following steps:(1) collecting the electrocardio-signal, the phonocardio-signal and the pulse signal of radial artery; (2) performing analog-to-digital conversion to the three signals to form the signal oscillogram; (3) identifying and extracting the characteristic point of each signal; (4) constructing the time series RR of electrocardio-period, the electromechanical delay time series and the pulse wave propagation time series of the combined variability index; (5) testing the validity of each time series; (6) calculating the heart rate variability, the electromechanical delay variability and the pulse wave propagation time variability; and (7) calculating the combined variability index of angiocarpy AV.
本发明提供了一种心血管系统联合变异性指标的检测方法和装置，检测方法包括以下步骤：(1)采集受检测者的心电、心音、挠动脉脉搏信号；(2)对三路信号进行模拟-数字转换，形成信号波形图；(3)识别和提取三路信号各自的特征点；(4)构造联合变异性指标的心电间期时间序列RR，电机械延迟时间序列和脉搏波传播时间序列；(5)检验各时间序列的有效性；(6)计算心率变异性、电机械延迟变异性和脉搏波传播时间变异性；(7)计算心血管联合变异性指标AV。
Thispaperhasstudiedonthedatalinkinterfacetechniqueoftacticalcontrolsystem. Firstof all, functional requirement and the important role of data link interface in tactical controlsystem is introduced; Secondly, with object oriented method, the characteristic of UAV taskcontrol process is analysed, and then UAV task control information model is established, anddata link interface standard of tactical control system is designed based on this model, including message format and transmission mechanism; Thirdly, data link control module isdesigned based on embedded Linux operating system and has realized conversion betweendata link standard interface and the private interface of UAV data link; and then, combinationreal time CORBA middleware and its event channel, data link control modular componenttechnology is studied, and realization scheme is put forward; Finally, demostration is madebased on prototype of tactical controlsystem, which verify the validaty of data link interfacestandardandembeddeddatalinkcontrolmodules.
本文对战术控制系统中的数据链接口技术进行研究：分析了数据链接口在战术控制系统中的功能需求；采用面向对象的方法，分析无人机任务控制问题，建立了无人机任务控制信息模型，并基于该模型设计了数据链接口通信协议，包括报文格式和传输机制；基于嵌入式Linux系统设计了数据链接口控制模块，实现了数据链标准接口与无人机数据链私有接口之间的相互转换；结合实时CORBA中间件及其事件通道，研究了数据链接口控制模块组件技术，并给出了实现方案；通过战术控制原理实验系统的演示实验，验证了数据链接口通信协议和嵌入式数据链接口控制模块的有效性。
The characteristic of mixed traffic flows is analyzed by taking mixed traffic flows as the basic situation of traffic flows of highways in China. Amonograph describing the relationship of flow speed density for different type of vehicles and mixed traffic flows is obtained by computer simulations and the data collected in situ for which conversion is not necessary.
以我国混合车流作为高等级公路交通流的基本构成，分析混合车流的交通特性，采用实地采集数据和计算机模拟仿真相结合的手段，得到了不经换算的混合车流条件下不同交通总量和不同车型比例速度、密度和流量三大参数的偌模图。
At atmosphere contain CO, emission rate and emission amount of SO_2 decreased obviously, but that of H_2S increased, total conversion rate of sulfur was less than that at air atmosphere. With temperature increasing, emission time of sulfur shorten, and ultimate emission amount of sulfur increased During pulverized coal combustion, emission process of nitrogen pollutants could be divided into two stage: early-stage prompt formation and later-stage gradual release, and characteristic curve of nitrogen pollutants emission was of two peaks in shape.
贴壁风可消除局部区域的还原性气氛，使H_2S浓度大幅下降；CO的存在使SO_2的析出速率、析出量明显降低，而H_2S的析出速率、析出量增加，硫的总转化率低于空气气氛下的数值；随温度升高，硫析出时间缩短，最终析出量增加。
The multiwave amplitude characteristic processing includes AVO trace gathering, AVo-AVA conversion, AVA curve fitting and attributive section output.
多波振幅特征处理包括AVO道集形成及AVO到AVA的转换、AVA曲线拟会及属性剖面的产生。
An analytic expression is developed describing the relationship between conversion efficiency and the characteristic parameters of SOA and input pump power.
得到了波长转换效率与半导体光放大器特性参数以及注入泵浦光功率等关系的解析表达式。
Low-power switching power has characteristic of Low Power Loss, high rate of conversion, small size and light weight.
针对体积小，可靠性高，待机功耗低的小功率开关电源。分析了国内外开关电源的发展和现状。
In aspect of hardware, we design the signal adjust circuit by analysis the characteristic of the sensors used in engine-testing. And then we design the A/D conversion circuit, main Controller circuit and CAN communication circuit according to the function of data acquisition card.
硬件方面，首先分析发动机测试试验中使用到的传感器类型及性能，设计数据采集通道的传感器信号调理电路，进而，按照数据采集功能要求设计A/D转换电路模块、微处理器电路模块以及CAN总线通信电路模块。
Regarding above 2 frequency division governor deflection, with the voltage and velocity modulation unifies to carry on supplementary, has analyzed the characteristic of the frequency conversion velocity modulation and the voltage and velocity modulation, it has realized the entire scope velocity modulation plan.
对于2分频以上的调速范围采用与调压调速相结合的方式进行互补，分析了变频调速与调压调速的特点，实现了全范围调速方案。
Frequency characteristic analysis of optoelectric conversion of optical fiber voltage transformer
光纤电压互感器光电变换频率特性分析
High Frequency Modulation Characteristic Analysis of Wavelength Conversion Based on External Cavity Laser
外腔激光器实现波长转换的高频调制特性分析
The design method of tester for high frequency C-V Characteristic of MOS structure using frequency conversion technique and integrated chip is introduced.
本文阐述了用高频检测法测量MOS电容的原理，介绍了用变频技术和集成芯片设计MOS结构高频C-V特性测试仪的方法。
The experimental research of low-lift axial flow pump model device is introduced simply. According to experimental results. we conduct similarity conversion on true pumps device characteristic at different impeller diameter.
简要介绍了低扬程轴流泵模型装置的试验研究，根据试验结果进行了不同转轮直径下实型泵装置特性的相似换算，该成果可以作为低扬程轴流泵站设计的参考。