查询词典 experimental engineer

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

The choice better body situation and the age body weight more consistent Guanzhong -hybridised goats and Small tail han sheeps each 20 were the experimental animal, all divided into two groups according to the age and the body weight, separately took the experimental group and the control group, each group of 10 ewes.

选择体况较好且年龄体重较一致的关中杂交奶山羊和小尾寒羊各20只为试验动物，按年龄和体重随机分成两组，分别作为超排组和对照组，每组10只母羊。

At the end of paper, the motorized spindle has been taken as an experimental object, a set of dynamic measuring system has been built up, and the experiment of dynamic response characteristic is conducted with impulse excitation. The comparison between theoretical simulation and experimental result shows that the rationality and validity of the simulation model are validated. Furthermore, some effective methods have been put forward to improve the dynamic performance of the high-speed motorized spindle.

建立了电主轴的动态测试系统，采用冲击法对电主轴的动态响应特性进行实验研究，将理论仿真结果和实验结果进行了对比分析，结果表明，所建立的仿真模型是合理有效的，并提出了改进高速电主轴动态特性的主要措施。

Comparisons of experimental data including from rapid compression machine, shock tube and HCCI engine with computational results through five different iso-octane reaction mechanisms indicate that different mechanisms from different experimental conditions are presented.

采用零维单区模型，通过5种不同反应机理的计算与速压机、激波管和HCCI发动机等实验数据的比较发现，各反应机理在不同实验状况下性能各异，在此基础上提出了构造适用于HCCI燃烧过程的异辛烷简化机理的必要性。

Cinnabarinus.The life table of experimental population of T. urticae Koch was established at constant temperature of 25 C, illumination time of 16 hours one day and humidity of 50%.The result of the experiment indicated that the value of the innate capacity of increase was 0.2634, 0.1788, 0.2098, 0.2280, 0.1538 on kidney bean, cotton, apple, aubergine and capsicum respectively and the quantity of the offspring obviously increased. When the age distribution of experimental population was steady, the amounts of the immature age were 88.3335%, 85.3052%, 85.0386%, 87.3787% and 86.8404% on five host plants respectively and the amounts of the adults 11.6636%, 14.6946%, 15.0635, 12.6218% and 13.1598% correspondingly.

通过对二斑叶螨在5种寄主植物(四季豆Phaseolus vulgaris、棉花Gossypium hirsutum、苹果Malus pumila、茄子Solanum melongena、辣椒Capsicum annuum)上的实验种群生命表的组建分析，计算出其在这5种寄主植物上内禀增长力r_m分别为0.2634、0.1788、0.2098、0.2280、0.1538；次代种群数量显著增长，在不同寄主植物上每雌产雌数存在极显著差异；在稳定种群年龄分布中，未成熟期在5种植物上分别占总量的88.3335％、85.3052％、85.0386％、87.3787％和86.8404％，成螨期分别占总量的11.6636％、14.6946％、15.0635％、12.6218％和13.1598％；对致死率为99％的不良环境的反应时间都小于30d。

This matter overthrew all basises I learned from Sunday school .

这件事把我从周日学校学到的所有道理都颠覆了。

It's one of the cruel ironies of aging: if you want to remember your favorite restaurants, the less you should eat at them.

这是一个老化的残酷讽刺：如果你想记住你最喜欢的餐馆，你应该更少吃到它们。