查询词典 experimental

The experimental device can be used for open experimental teaching of civil engineering professional students.

此实验装置可应用于土木工程专业学生的开放性实验教学。

Based on the experimental results and adopting the most common used method, the coefficient of cyclic properties and curve of fatigue life versus strain of LCF of 3OCr2MoV were drawn. Comparisons between experimental results and similar curves were made.

采用最通用的疲劳估算方法拟合出了30Cr2MoV转子钢的常温和高温550℃下的低周疲劳参数和循环应力-应变曲线以及低周疲劳寿命曲线，并将试验结果与同类曲线进行了比较。3。

After looking up a large amount of native and foreign information, the materials used in the experiment were as follows: PTFE base, graphite filler, molybdenum disulfide filler, copper powder filler, carbon fiber and so on. The experimental method is that the formula was designed according to uniform experimental method, the relationship between formula and frictional property was found with spline function and then the representative test points were chosen from fitting curve to make verification test for optimization.

经过查阅大量国内外文献资料后确定原料为：聚四氟乙烯树脂为基体，加入石墨、二硫化钼、铜粉、碳纤维等填料；试验方法为：根据均匀试验方法设计配方，用样条函数找出配方与摩擦性能的关系，然后在拟合曲线上选取具有代表性的试验点进行验证试验，达到优化的目的；制备工艺：冷压烧结法制备固体润滑剂。

Therefore, the study is significant both theoretically and practically. As a result, the studying aim of this paper is to establish a practical and complete system for the prediction of ship maneuvering motion, taking into account of the influence of the environmental factors, such as the wind, wave and current, establish a practical and complete system for the prediction of ship maneuvering motion. In this paper, the OpenGL virtual reality simulation technique is introduced into the field of ship maneuver and control, and using the MMG mathematical model, the three dimensional dynamic simulation system of the ship motion is established and good results are achieved. In the process of the system development, firstly, the maneuvering motion equations for ship in the still water are established, based on the MMG module mathematical model and serial experimental result. After compiling the program, the calculation results are compared with the experimental data, the coherence between them validate the mathematical model.

在系统开发过程中，首先采用MMG分离式数学模型及相关的系列化试验结果，建立单桨单舵海洋运输船舶在静水中的船舶操纵运动方程，并编制计算程序，经与试验结果比较，证实了计算结果的正确性；为了解MMG数学模型中模型参数变化对操纵性指数的影响程度，作者在上述已有程序基础上，对有关模型参数进行偏移修正，探讨了相应参数变化后的操纵性指数，对船舶操纵性指数对模型参数的灵敏度进行了详细的分析与探讨，所得结论与工程实际相吻合，具有实际应用价值，并为进一步提高船舶操纵性预报的精度打下了基础；然后，在已有的船舶静水操纵运动模型基础上，考虑双桨双舵的影响，建立了内河双桨双舵船舶的操纵运动模型；最后，综合考虑风浪流作用力的影响，进行了船舶的操纵运动仿真计算。

Synthesized all above, the heat and mass transfer of charge bed is discussed in detail. After choosing seriously the former study results in this field, a whole temperature range process model for firing iron ore pellets containing solid fuel is established as well as its software is edited. The main physical chemistry reaction process within pellets and the heat statement can be calculated exactly with the process as long as the physical and chemical parameters of raw material are obtained through basic experiments. After finding out the reason of"temperature hysteresis"and"heat inertia"of the experimental induration device, a new kind of experimental induration device is designed. The"temperature hysteresis"of hot gas flow in the new device is avoided.

综合以上对焙烧球团矿时球团矿内各种物理化学反应过程的分析与研究的结果，仔细地分析研究了球团矿料层中的传热质现象，认真筛选了前人对填充床的传热传质的研究结果，提出了全温度范围球团矿焙烧过程模型，并编制了相应的计算机软件，只要通过基础实验，获得原燃料的基本物性参数（如化学反应速度常数，矿粉、煤粉的粒度及此表面积以及球团矿的导热性等），利用这一软件就能准确地计算出焙烧球团矿时球团矿内各种物理化学反应过程和料层内的热工状态。

Its rule of change was obtained. On the basis of other studies, the flocculation kinetics and flocs structure was studied. By making some assumptions, collision frequency were presented. Then the the flocculation kinetics model was established through population balance equation. Comparison of experimental data and modeling results indicate that there are the same trend between the two. So the model can predict flocs number and size during flocculation of Yellow River's loess particles without using empirical parameters. The TEM and SEM were used to obsever flocs in the study of floc structure. The flocculation was divided as flocculi, floc and floc aggregate. The flocs structure model was established by assumption that particles position in floc accords with tetrahedron. The fractal dimension of model and experimental flocs was found to be coincident. So the model can reflect the structure of flocs formed in flocculation of Yellow River's loess particles by macromolecule flocculant at a certain extent.

最后，本文还对絮凝动力学和絮体结构进行了研究，在前人研究的基础上，针对高分子絮凝黄河泥沙，对絮凝过程作了一些符合试验条件的假设，建立了颗粒碰撞频率表达式，应用了颗粒数量平衡方程，从而建立了絮凝过程的动力学生长模型，模型计算结果与试验数据对比表明，二者趋势一致，在没有使用经验参数的情况下基本上能够描述黄河泥沙絮凝过程中絮体数量和尺寸分布的变化过程；对絮体结构的研究中，应用扫描电子显微镜和透射电子显微镜对絮体进行了观察，将絮体分为絮粒、絮团和絮网三个不同的生长阶段，通过假设颗粒结合位置符合正四面体，建立了絮体结构模型，计算得到的模型絮体分形维数基本与试验中的实际絮体相符，在一定程度上能眵反映高分子絮凝黄河泥沙生成的絮体结构。

Its rule of change was obtained.On the basis of other studies,the flocculation kinetics and floes structure was studied. By making some assumptions, collision frequency were presented.Then the the flocculation kinetics model was established through population balance equation. Comparison of experimental data and modeling results indicate that there are the same trend between the two. So the model can predict floes number and size during flocculation of Yellow River's loess particles without using empirical parameters.The TEM and SEM were used to obsever floes in the study of floe structure.The flocculation was divided as flocculi,floc and floe aggregate.The floes structure model was established by assumption that particles position in floe accords with tetrahedron.The fractal dimension of model and experimental floes was found to be coincidentSo the model can reflect the structure of flocs formed in flocculation of Yellow River's loess particles by macromolecule flocculant at a certain extent

最后，本文还对絮凝动力学和絮体结构进行了研究，在前人研究的基础上，针对高分子絮凝黄河泥沙，对絮凝过程作了一些符合试验条件的假设，建立了颗粒碰撞频率表达式，应用了颗粒数量平衡方程，从而建立了絮凝过程的动力学生长模型，模型计算结果与试验数据对比表明，二者趋势一致，在没有使用经验参数的情况下基本上能够描述黄河泥沙絮凝过程中絮体数量和尺寸分布的变化过程；对絮体结构的研究中，应用扫描电子显微镜和透射电子显微镜对絮体进行了观察，将絮体分为絮粒、絮团和絮网三个不同的生长阶段，通过假设颗粒结合位置符西安建筑科技大学博士学位论文合正四面体，建立了絮体结构模型，计算得到的模型絮体分形维数基本与试验中的实际絮体相符，在一定程度上能够反映高分子絮凝黄河泥沙生成的絮体结构。

The study above made experimental basis for the further study of lactoperoxidase system as natural food preservative used in the whole food industry, and provided reliable experimental data for developing compound preservative which mainly consisted of LPS in the future.

以上研究为进一步探讨LPS作为天然保鲜剂在包括冷却猪肉开发的整个食品行业中的应用奠定了实验基础，并为今后研究开发以LPS为主要成份的复合保鲜剂提供可靠的实验依据。

Based on the predecessors experimental studies on the gaseous diatomic compounds of gold and on the chloride systems, this study approaches the volatile transport of gold related to organic matter in a new experimental system.

在前人已证明金呈气态双分子及金可在氯化物体系中迁移的实验基础上，本项成果在新的实验研究领域对金呈气相富集与有机质关系进行了探讨。

Figure 9 shows the configuration of the experimental equipment employed in this research. The thermal input is provided primarily by a DC power supply. In addition, a 600W thermostatic tank at the heat exchange section is used to control the water temperature, and it works with a flow regulator to remove heat through the water jacket. Thermocouples are separately embedded at the inlet and outlet of the water jacket to monitor the temperature change. In the course of the experiment, each of the heat spreaders is enclosed by heat-insulating materials to prevent heat loss. The following are the main experimental parameters

图9为本研究之实验设备架构图，主要以一台 DC 电源供应器提供热量之输入，而在热交换端则以一600W 之恒温水槽控制水温，搭配流量调节器以水套带走热量，并于水套之入口及出口处分别嵌入 Thermocouple 监测温度变化，实验过程中，均温基板的四周皆以绝热材料包覆以防止热的损失，主要的实验参数如下

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。