研究了温度对玻璃态胆甾相环硅氧烷液晶中分子分布的影响。
Effects of temperature on the molecule distribution of a glassy cholesteric siloxane cyclic side-chain liquid crystal is investigated in this paper.
介绍了一类基于双向输入型鉴相器锁相环技术的时钟恢复系统。
The paper introduces a kind of clock recovery system based on phase-locked loop with bi-directly incident phase-comparator.
同时本文针对PWM整流器的并网锁相问题，对三相锁相环进行了研究。
Three-phase PLL is researched about connetting grid and phase locked of PWM rectifier in the thesis.
锁相环一般采用线性分析，相平面图，近似计算法以及计算机模拟来设计。
In general, the design of phase-lock loops has been done by a combination of linear analysis, phase plane plots, rule of thumb, and simulation.
应用锁相环集成电路ne567对音频信号的鉴相原理实现对控制信号的译码输出，控制井下仪器马达工作。
The latch phase circle circuit NE567 functions as phase demodulation of audio frequency signals for realizing decoding output of the control signals to control the downhole motor operations.
本文给出了一种计算无噪声时具有正弦鉴相器的二阶锁相环捕捉特性的新方法，求得了每个差频周期的平均角频率牵引量。
A new method is presented for analyzing the acquisition behavior of second-order PLL with sinusoidal phase detector in the absence of noise.
并对相位突变和频率突变的情况进行了仿真研究，说明在相位和频率发生变动时三相锁相环仍能有效地锁定相位，能够满足系统变频的要求。
The simulation results prove that the three-phase phase-locked loop can work well in disturbance situation and variable frequency system when the frequency of the inputs is variable.
通过三相锁相环在不同参数量值下和不同电网情况下的仿真分析了影响三相锁相环性能的参数，并对三相锁相环的系统性能做了分析、优化设计。
The system simulation is done in SIMULINK. The design is done based on FPGA. With An optimized scheme which reuses multiplication and uses CORDIC algorithm is proposed.
对相转移催化合成2-戊叉环戊酮及其异构化的条件进行了研究。
The synthetic conditions of 2-pentylidene cyclopentenone using PTC were stud-ied, and the conditions of isomerization were also studied.
在某些文化中，特别是环太平洋地区，通常先写家族名，从而与“firstname”所表达的含义相矛盾。
In some cultures, notably in the Pacific Rim, the family name is usually written first, which confounds the meaning of the expression "first name."
这些行为尽管很有趣，但却会导致我们的生物钟，也就是让身体功能与外部环境相协调的反馈环出现变化。
Fun as they are, these activities can tamper with our circadian rhythms, the feedback loops that sync our body's functions to our external environment.
其提案“水绿环城”，通过多样的主题环将不同的新区域环环相扣，创造迷人风景环。
The proposal 'Green Loops City' links the new urban areas through attractive and diverse landscape loops.
奥运的官方标志对全世界来说是很容易辨认- - - - -五环相筘。
The official Olympic symbol is probably one of the world's most easily recognized - five rings linked together.
第一个是关于如何通过极限环分析建立描述函数法与相平面法之间联系；
The first one is about how to build the connection between describing function method and phase plane method through limit cycle analysis.
本文介绍了在固相载体上进行的环加成反应，及其在有机合成及反应机理研究中的应用。
This paper focuses on the cycloaddition reactions on solid phase supports and their applications in organic synthesis and mechanism research.
甲基吡啶的热稳定性比吡啶差，热解时甲基首先脱离芳香环进入气相，随后芳香环的反应途径和吡啶类似；
In the picoline pyrolysis experiment, the methyl disengages from aromatic ring to form methane firstly, then the following reaction of the aromatic ring is similar to pyridine.
用气相色谱对低烯烃火花点火引擎燃料芳香碳氢化合物类型，环烃，烯烃，石蜡和氧化物的标准试验方法。
Standard test method for oxygenates and paraffin , olefin , naphthene , aromatic o - pona hydrocarbon types in low - olefin spark ignition engine fuels by gas chromatography.
本文通过几年来大量的实验分析和现场试验，总结出气水两相在井筒内主要存在气泡流、柱塞流、环膜流、霉状流。
Based on a lot of experimental analysis and field tests, the states of bubble flow, plunger flow, ring film flow, fog flow lied in gas-water phases in wellbore are summarized.
采用固定床连续流动反应装置，对此催化剂用于气相苯加氢制环已烷的活性进行评价。
The catalyst was prepared by impregnating depositing process and the catalyst activity was evaluated with a continuous flow fixed bed reactor.
并以三相半波可控整流电路、滞环比较方式的电流跟踪控制、利用S函数实现空间矢量脉宽调制为例说明了软件的使用方法。
Three-phase half wave controlled rectifier, hysteresis comparison mode current track control, and realization of SVPWM by S-Function are used as examples to describe the usage of the software.
采用机理建模方法，研究了丙烯在环管反应器中的液相本体聚合过程。
The liquid phase bulk propylene polymerization in loop reactor was simulated based on the polymerization mechanism.
研究了纯丙烯气相氧化的环氧化反应。
The epoxidation of propene in gas phase has been investigated.
对两相毛细泵环及其反向式蒸发器在启动和工作过程中出现的工质循环脉动现象进行了初步的实验研究。
The fluctuant phenomenon of fluid circulation appears in the starting and working processes of two-phase capillary pumped loops(CPL). This problem was preliminarily studied by experiment.
研究了水相悬浮法合成环氧化反式-1，4-聚异戊二烯（ETPI）的结构与性能。
Structure and property of epoxidized trans-1,4-polyisoprene(ETPI) by water phase suspension method was studied.
该文的理论推导和所得结论为改善三相四线并联apf应用电流滞环控制时的性能提供了较好的理论基础。
This paper offers a better theory basis for improving compensation capability of the three-phase four-wire APF controlled by hysteresis current control strategy.
利用分子内复配思想，根据缓蚀剂结构与效能关系设计、合成了一种杂环胺有机羧酸盐类气相缓蚀剂YC-1。
A novel heterocyclic amine organic-salt vapor phase inhibitor, named YC-1 was designed and synthesized based on the relationship between the structure and effect of inhibitor.
作为二环路边重要的城市节点，建筑设计既注重与环境相协调，又考虑到对周围人文景观的利用。
As an important node on the intersection of second ring road and aixs road, the building not only accommodates with its environments, but also responds to surrounding cultural context.
根据X型圆管相贯节点的破坏模式，总结了相对应的三种分析模型环向模型、冲剪模型和剪切模型。
Based on the breakage mode of circular tubular X-joints, three analytic models are summarized: round-direction model, clash-cut model and cut model.
其成本与环戊酮液相氧化法相当。
The cost was equivalent with cyclopentanone liquid phase oxo-process.
其成本与环戊酮液相氧化法相当。
The cost was equivalent with cyclopentanone liquid phase oxo-process.
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