分析动力学

It analyzed impact principle, and researched viscidity and springiness model of soil. So the relation of impact and soil was found, and the dynamic model of impact bar-soil system was established. After analyzing and researching the model, a better dynamic model with soil impact character was gained.

针对土壤的物理特性，对冲击原理进行分析，并对土壤的粘弹性模型进行研究，建立冲击与土壤之间的联系，为土壤压实冲击测量装置建立了冲击杆—土壤系统的动力学模型，并对模型进行分析研究，简化出更适合土壤冲击特性的动力学模型。

Furthermore, the roles that veratridine plays in the emergence of the parabolic bursting, namely inhibiting the inactivation of sodium channels and eliciting the slow sodium influx, are clarified.

进而阐明了藜芦碱引起这一放电形式所起的作用，即抑制钠通道失活引发慢变钠内流。这种利用非线性动力学理论的分析方法可能会为分析药物的药物动力学提供一种新的途径。

The results of analysis have indicated that, in comparison with the direct dehydrogenation reaction, the coverage of alkoxide is decreased with the increase of the adsorption of acetone.

在直接脱氢反应动力学分析的基础上，将这一方法扩展到更为复杂的氧化脱氢反应中，采用如下的机理对担载银催化剂上异丙醇氧化反应动力学进行了拟合分析。

objective: to investigate diagnosis and treatment choice of detrusor hypoactivity with impaired contractile function on voiding function in benign prostatic hyperplasia.methods:the clinical date of 48 bph patients with dhic were analyzed,including clinical diagnosis,urodynamic parameters,treatment and follow-ups.results:37 patients with detrusor instability and over 40 cmh2o bladder pressure were treated successfully by turp.the time of indwelling suprapubic punctural cystostomy cathter was(1~8)weeks.11cases without di and under 40 cmh2o bladder pressure were treated by suprapubic punctural cystostomy,accepted the test of urodynamics after(1~3)months.7 cases with di were treated successfully by turp,4 cases without di were indwelled suprapubic punctural cystostomy cathter all life.conclusion:dhic worsens the voiding function of the patients with bph,and the test of urodynamic is helpful to diagnose and could provide more convinced evidences for treatment of patients.

分析膀胱过度充盈所致逼尿肌损伤，引起膀胱逼尿肌收缩无力良性前列腺增生48例患者的临床资料，包括诊断，尿动力学检查，治疗及随访结果。结果：37例经尿流动力学检查，诱发存在逼尿肌不稳定，伴膀胱内压达40 cmh2o以上，采取turp，术后留置膀胱造瘘管（1~8）周后全部拔除，排尿通畅。11膀胱内压始终未达到40 cmh2o，且在膀胱注水充盈过程中无逼尿肌不稳定出现，行膀胱造瘘后出院，（1~3）个月后经尿动力学检查复查膀胱逼尿肌收缩力，其中7例膀胱逼尿肌收缩功能有恢复，行经尿道前列腺汽化电切术治愈；剩余4例膀胱逼尿肌收缩功能几乎无任何改善。长期留置膀胱造瘘治疗。结论：良性前列腺增生导致膀胱过度充盈所致逼尿肌损伤，引起膀胱逼尿肌收缩无力患者，术前应用尿流动力学检查对膀胱逼尿肌损伤程度进行认真分析，可进行有针对性的治疗。

Based on the analysis of kinetical process of CH4 -air oxidation, a numerical modeling of the species concentrations and temperature for CH4 jet diffusion combustion is made using a four-step reduced mechanism and two semi-detailed chemical kinetical reaction mechanismsW mechanism and Y mechansim.

在分析甲烷-空气氧化反应动力学过程的基础上，采用四步简化机理和两种半详细的化学反应动力学机理-W机理和Y机理，对甲烷射流扩散燃烧的组分浓度和温度进行了数值模拟，计算结果与实验结果进行了对比分析。

In this dissertation, the main factors that influence the impact point displacement on the earth surface is also analyzed in detail, and six-degree-of-freedom trajectory simulation is presented based on the unsimplified dynamical equations.

将各因素对姿态响应的影响进行数值仿真，通过分析仿真结果，对姿态动力学模型进行了简化分析，使得简化的动力学模型既保持了原系统的主要特性，又便于今后对控制系统的设计。

This paper introduced the mechanism of vibration in the process of deep hole boring ,developed a dynamic modal of the damping boring bar,optimizing the parameters of the damping system,analyzed the transient dynamic and harmonic response of the damping boring bar.

介绍了深孔镗削加工过程中产生振颤的机理，建立了减振镗杆的动力学模型，在此基础上优化减振系统的参数，并且对减振镗杆进行瞬态动力学和谐响应分析，分析结果表明该减振系统具有良好的减振性能。

In the meantime, the difference between a direct integration method and a modality superposition method in the nonlinear solution of large sized shaftings was also investigated. It can be shown that the use of a nonlinear method for solving the kinetics response of a higher dimensional rotor bearing system is both essential and feasible. With regard to the nonlinear kinetics problems of a rotor system the direct integration method is more effective than the modality superposition method. steam turbine, rotor, dynamics, nonlinearity

国内外先后采用非线性油膜力的数值积分方法对转子轴承系统的非线性动力学行为进行了一定研究，但主要集中在简单转子—轴承系统的研究上，在分析上主要采用的是简单离散方法，转子多被简化为刚性转子和Jeffcott转子模型，只能对简单转子—轴承系统的非线性动力学行为进行定性的分析，而对于象汽轮机组轴系这样的高

In the experiment distillation method is adopted and distillations in the different temperature range are collected.

组成成分分析采用色谱—质谱联用分析技术，得到生物质焦油及其馏分的组成成分；热动力学特性采用综合热分析仪进行研究，通过测定不同气氛和不同升温速率的热重曲线、微商热重曲线和差热曲线，定性分析生物质焦油及其馏分的蒸发和燃烧等特性，并定量求解热动力学参数。

The structure of the first generation of low floor tramcars in China is introduced with the comparison made on the similarities and differences between independent wheels and conventional wheelsets.

介绍国内第 1列低地板有轨电车的结构，比较了独立车轮与传统轮对的异同，对独立车轮转向架试运行情况进行了分析，通过试验证明其走行部具有较好的稳定性、平稳性和曲线通过等动力学性能，最后结合走行部的关键结构分析了该车的动力学特点及仿真结果。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失