搜索结果: 136-150 共查到“化工系统工程其他学科”相关记录174条 . 查询时间(2.312 秒)
溶液自发结晶过程动力学参数研究
自发结晶过程 动力学参数 硝酸钾
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2009/3/3
The batch cooling crystallization initiated from spontaneous nucleation for aqueous solution of potassium nitrate was studied. The concentration and transmittance data were acquired on line throughout...
According to the simulation of nitrogen sorption process in porous media with three- dimensional network model, and the analysis for such a process with percolation theory, a new method is proposed t...
声空强化渗透脱水过程质扩散研究
渗透脱水技术 气穴现象 最大传输率
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2009/2/27
An experimental study on intensifying osmotic dehydration was carried out in a state of nature and with acoustic cavitation of different cavitating intensity (0.5A, 0.TA and 0.9A) respectively, in whi...
非活性硝酸粉末新型酸化工艺技术
非活性 硝酸粉末 酸化工艺
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2009/2/26
为了更有效地提高油井酸化的效率和增加原油的产量，前苏联巴拉基洛夫院士于八十年代提出并实施了非活性硝酸粉末新型酸化工艺技术。目前，世界上常规的酸化工艺技术是运用HCl，HF，醋酸，甲酸，H3PO4这几种主要酸和其它添加物，以不同的配比进行油井酸化处理，这种工艺方法除去井下油层通道堵塞物的有效率仅为30%～40%，效果十分有限。HNO3粉末新型酸化工艺技术，关键是在常规工艺中引入了HNO3粉末酸化新概...
通过速度-时间数据的小波变换研究筛板式鼓泡塔中的湍流结构
鼓泡塔 板式 筛板 研究
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2009/2/24
Hydrodynamic and turbulent structures in the trayed bubble column with 1.2m inner diameter have been characterized from liquid-phase velocity-time series data obtained by the hot-film anemometer. Wav...
The stoichiometric matrix of a simplified metabolic network in Bacillus Subtillis was constructed from the flux balance equations, which were used for reconciliation of the measured rates and determ...
同时发生初次和二次成核且为聚结控制的沉淀过程多定态及稳定性分析
precipitation mixed suspension-mixed product removal crystallizer agglomeration
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2009/2/24
The possibility of multiplicity in an isothermal continuous mixed suspension-mixed product removalcrystallizer is explored using the bifurcation theory. A process involving agglomeration controlled ...
未知办理入扩展卡尔曼滤波的收敛性分析及其非线性故障诊断
未知输入扩展卡尔曼滤波 收敛性分析 非线性故障诊断
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2009/2/24
Unknown input observer is one of the most famous strategies for robust fault diagnosis of linear systems, but studies on nonlinear cases are not sufficient. On the other hand, the extended Kalman filt...
一个化工过程运行系统的多层信息集成平台
XML多层 real-time STEP CORBA 运行系统
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2009/2/24
In the process industry, automation and process control systems are widely implemented, information integration is however far away from satisfactory. It remains a hard job for senior managers to mak...
A new equation for predicting surface tension is proposed based on the thermodynamic definition of surface tension and the expression of the Gibbs free energy of the system. Using the NRTL equation ...
A new model without any fitting parameter for estimating the mean liquid recirculating velocity has been derived from previous work directly. The prediction agrees with experimental data reasonably ...
一氧化碳偶联反应器分岔行为
一氧化碳耦合反应器 分歧行为 稳定性 动力学
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2009/2/24
The bifurcation behavior of the CO coupling reactor was examined based on the one-dimensional pseudohomogeneous axial dispersion dynamic model. The method of finite difference was used for solving the...
一种改进的动态数据校正离群值检测法
动态数据 校正方法 离群值检测法 鲁棒方法
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2009/2/24
Data reconciliation technology can decrease the level of corruption of process data due to measurement noise, but the presence of outliers caused by process peaks or unmeasured disturbances will smear...
一种基于改进NLJ算法的对象辨识方法及其应用
new Luus-Jaakola (NLJ) internal model control proportional-integral-derivative (PID) model identification
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2009/2/24
The accurate model is the most important and basic condition for the application of advanced process control, but the conventional methods do not provide satisfactory results in the case of unstable ...