Modeling of closed-loop recycling liquid–liquid chromatography: Analytical solutions and model analysis

2015 ◽  
Vol 1406 ◽  
pp. 156-164 ◽  
Author(s):  
Artak E. Kostanyan
Keyword(s):  
Liquid Chromatography ◽  
Analytical Solutions ◽  
Closed Loop ◽  
Model Analysis

Analytical Solutions of the Ideal Model for Gradient Liquid Chromatography

2006 ◽  
Vol 78 (22) ◽  
pp. 7828-7840 ◽  
Author(s):  
Weiqiang Hao ◽  
Xiangmin Zhang ◽  
Keyong Hou
Keyword(s):  
Liquid Chromatography ◽  
Analytical Solutions ◽  
Ideal Model ◽  
Gradient Liquid Chromatography ◽  
The Ideal

scholarly journals Analytical solutions and moment analysis of general rate model for linear liquid chromatography

2014 ◽  
Vol 107 ◽  
pp. 192-205 ◽  
Author(s):  
Shamsul Qamar ◽  
Javeria Nawaz Abbasi ◽  
Shumaila Javeed ◽  
Andreas Seidel-Morgenstern
Keyword(s):  
Liquid Chromatography ◽  
Analytical Solutions ◽  
Moment Analysis ◽  
Rate Model

scholarly journals Accuracy model, analysis, and adjustment in the context of multi-closed-loop planar deployable mechanisms

2016 ◽  
Vol 8 (3) ◽  
pp. 168781401664183 ◽  
Author(s):  
Yi Yang ◽  
Shaorong Xie ◽  
Wuxiang Zhang ◽  
Jun Luo ◽  
Hengyu Li
Keyword(s):  
Closed Loop ◽  
Model Analysis

Flow Saturated Step Response of a Hydraulic Servo

1974 ◽  
Vol 96 (3) ◽  
pp. 341-346 ◽  
Author(s):  
K. F. Martin
Keyword(s):  
Experimental Investigation ◽  
Analytical Solutions ◽  
Closed Loop ◽  
Step Response ◽  
Maximum Pressure ◽  
Important Conclusion ◽  
Digital Computation ◽  
Large Step ◽  
Hydraulic Servo ◽  
Experimental Values

This paper reports a theoretical and experimental investigation of the displacement and pressure responses of a closed loop hydraulic servo to a very large step input. The latter ensures that the servovalve ports are fully open and the servo flow-saturated for substantial periods. The nonlinear equations are solved by both analogue and digital computation with analytical solutions in particular situations. Approximations for the displacement response and the maximum pressure attained are evaluated and shown to be acceptable. Experimental values compare reasonably well with predictions An important conclusion is that such a servo cannot cavitate during a step response

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