查询词典 experiment

Linear solvation energy relation was firstly introduced in the paper, and the method and step of gaining the special parameters of solvent and solute were introduced in detail, and these special parameters were used to selection and optimization of extractive agent in extractive distillation. The model of predicting activity coefficient at infinite dilution was established by linear solvation energy relation. By the above theory, several candidate solvents were selected to separate C5 fraction, and by experiment of vapor-liquid phase equilibrium at atmosphere pressure, the mixture of N-methyl-pyrrolidone including 4% water was used extractive agent of separating C5 fraction. Then binary vapor-liquid phase equilibrium of the some compound in C5 fraction and N-methyl-pyrolidone were determined at atmosphere pressure and correlated by NRTL equation. Isoprene being objective compound, experiments were operated in the laboratory-scale column; the processes were simulated by RadFrac model in ASPEN PLUS. And by the combination of experiment and simulation, the new process of separation of C5 was established.

本文首先对线性溶剂化能关系进行了分析介绍，也介绍了采用溶剂化能关系得到溶质溶剂特性参数的方法步骤，并将这些参数用于萃取精馏萃取剂的选择与优化；也通过线性溶剂化能关系式建立无限稀释活度系数预测模型，取得了一定的预测精度；将通过上述方法初选的溶剂进行了常压汽液平衡的测定研究，通过实验研究选定含水4%的N-甲基吡咯烷酮溶液做为C5分离的萃取剂，测定了大量N-甲基吡咯烷酮与C5组分的二元平衡数据，并进行关联计算；以异戊二烯为目标产物在实验室规模的精馏塔内进行了C5分离的实验研究，取得大量塔内数据；通过选用合适的热力学模型，采用ASPEN中RadFrac模块对分离过程进行模拟研究，通过实验与模拟相结合，建立了C5分离的新工艺，为将来的工业化打下了坚实的基础。

Experiment's process is concision, convenience; it can increase the experiment's efficiency.

实验过程简单、快捷、方便、直观，高效，提高了实验人员的实验兴趣，加深对电路的理解和记忆。

The experiment to demonstrate the bi-directional conductibility of power MOSFET is also presented in this paper. A power supply of TTCF with synchronous rectification is designed.The waveform,experiment data and analysis of it are presented in this paper,which shows that the design is avaible in practice.

作者设计了一个双管正激同步整流变换器，文章最后给出了相关实验波形及数据并进行了分析，证明了该设计方案的可行性。

For this reason, According to the experiment principle, considering to get materials, to confect solution density,to set contrast ,to treat time, we researched the experiment.

为此，我依据实验原理，对取材、溶液浓度、对照、处理时间等实验条件进行了探索，并用测微尺准确测量气孔的开度，得到了预期的效果。

The above controlling methods are proved to be effective by simulation experiment and tracking control experiment.

仿真实验和机器人的跟踪实验证明了以上控制方法是有效的。

In chapter 5, a test and local operational experiment for the protocol convertor is carried on and the experiment result is analyzed.

第五章对所研制的协议转换器进行测试与实验，并对实验结果进行了分析。

The content of serum corticosterone increased notably in both of control group and experiment group Ⅱ in heat-stressed mice, but experiment group Ⅱ was still significantly lower than that of control group.

结论在饲料中添加维生素C多聚磷酸酯对小鼠的特定生长率和淋巴细胞转化均无显著影响，但会降低小鼠血清皮质酮的含量。

Major content of this work includes five aspects as follows:(1). Oxygen sensitive materials had been prepared by carrier covalence method, and the preparation mechanism of the materials had been investigated by FI-IR, SEM, and the detection experiment of oxygen. Then through the detection of oxygen, the sensitivity and stability had been estimated, and it was studied that the properties of materials would be affected by the various factors.(2). Oxygen sensitive materials had been prepared by carrier covalence-cross linking method, and the preparation mechanism of the materials had been investigated by FI-IR, SEM, and the detection experiment of oxygen. Then through the detection of oxygen and spectrophotometer, the sensitivity and stability had been estimated, and it was studied that the properties of materials would be affected by the various factors.(3). For the detection of gaseous oxygen, the fiber optical sensor on basis of oxygen sensitive materials had a respond time of 10s, detection limit of 5ppmand detection precision of 0.5%. The sensor had good repeatability and stability, a less delay and at least 1 year life-span.

本论文主要包括以下五个方面的内容：(1)载体共价法制备氧敏感材料：通过红外光谱、扫描电镜图谱和氧测试实验探讨该氧敏感材料的制备机理，通过氧测试实验评价该氧敏感材料的氧敏感性和稳定性，同时研究了各种因素对该氧敏感材料性能的影响(2)载体共价—交联法制备氧敏感材料：通过红外光谱、扫描电镜图谱和氧测试实验探讨该氧敏感材料的制备机理，通过氧测试实验和分光光度计评价该氧敏感材料的氧敏感性和稳定性，同时研究了各种因素对该氧敏感材料性能的影响(3)氧敏感材料在光纤气态氧传感器中的应用：该传感器的响应时间为10s，检测下限为5ppm，检测精度为0.5％，具有较好的重复性和稳定性，迟滞较小，使用寿命至少为1年，适合各种环境下气态氧浓度的检测。

Although the rules of investigative experiment are distinct in different legal family, we should use them for reference to establish rational, justice and enlightened rules of investigative experiment in crim...

虽然不同法系对侦查试验规则的立法方式和具体内容规定不同，但我们应加以借鉴，以便建立我国的科学、公正、文明的侦查试验证据规则。

The "Experiment" generation of artists broke through the traditional aesthetic value system of the ink painting, and their exploration to rebuild the way of ink painting language through borrowing modern artistic concepts highlighted a cultural criticism, while the next generation of creators have vaguely presented a value orientation rather alien to that of the "Experiment" generation in their expression of contemporary emotions, experience and cognition as well as their construction of sensitivity and criticalness of contemporary cultural expression through the language of ink painting.

如果说"实验"一代艺术家们打破了水墨的传统审美价值体系，他们借鉴现代艺术观念重建水墨话语方式的探索突显出一种文化批判精神的话，那么，当下一些创作者在水墨语言对当代情感、经验、认知的表现力，对当代文化表达的敏锐性和批判性等方面的建构，则隐约显现出了与"实验"一代相异的价值取向。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。