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| 1 | Kinetics of phenol and m-cresol biodegradation by an indigenous mixed microbial culture isolated from a sewage treatment plant显示文摘An acclimatized mixed microbial culture,predominantly Pseudomonas sp.,was enriched from a sewage treatment plant,and its potential to simultaneously degrade mixtures of phenol and m-cresol was investigated during its growth in batch shake flasks.A 22 full factorial design with the two substrates at two different levels and different initial concentration ranges(low and high),was employed to carry out the biodegradation experiments.The substrates phenol and m-cresol were completely utilized within 21 h when present at low concentrations of 100 mg/L for each,and at high concentration of 600 mg/L for each,a maximum time of 187 h was observed for their removal.The biodegradation results also showed that the presence of phenol in low concentration range(100–300 mg/L) did not inhibit m-cresol biodegradation.Whereas the presence of m-cresol inhibited phenol biodegradation by the culture.Moreover, irrespective of the concentrations used,phenol was degraded preferentially and earlier than m-cresol.A sum kinetics model was used to describe the variation in the substrate specific degradation rates,which gave a high coeffcient of determination value(R2>0.98)at the low concentration range of the substrates.From the estimated interaction parameter values obtained from this model,the inhibitory effect of phenol on m-cresol degradation by the culture was found to be more pronounced compared to that of m-cresol on phenol.This study showed a good potential of the indigenous mixed culture in degrading mixed substrate of phenolics. | Pichiah Saravanan Kannan Pakshirajan Prabirkumar Saha | 2008 | Journal of Environmental Sciences2008，20，12： | 7 |
| 2 | Separation of lignosulfonate from its aqueous solution using supported liquid membrane 显示文摘 | Kabita Chakrabarty Prabirkumar Saha Aloke Kumar Ghoshal | 2009 | Journal of Membrane Science2009，340，12： | 1 |
| 3 | Biodegradation of phenol and m-cresol in a batch and fed batch operated internal loop airlift bioreactor by indigenous mixed microbial culture predominantly Pseudomonas sp显示文摘 | Saravanan P Pakshirajan K Saha Prabirkumar | 2008 | Bioresource Technology2008，99，18： | 1 |
| 4 | Batch growth kinetics of an indigenous mixed microbial culture utilizing m-cresol asthesolecarbonsource显示文摘 | Pichiah Saravanan Pakshirajan K Prabirkumar Saha | 2009 | JournalofHazardousMaterials2009，162，： | 1 |
| 5 | Growth kinetic of an indigenous mixed microbial consortium dur- ing phenol degradation in a batch reactor 显示文摘 | Pichiah Saravanan Pakshirajan K Prabirkumar Saha | 2005 | Bioresource Technology2005，99，： | 1 |
| 6 | Model Predictive Control of Resonant Systems Using Kautz Model显示文摘The scope of this paper broadly spans in two areas: system identification of resonant system and design of an efficient control scheme suitable for resonant systems. Use of filters based on orthogonal basis functions(OBF) have been advocated for modelling of resonant process. Kautz filter has been identified as best suited OBF for this purpose. A state space based system identification technique using Kautz filters, viz. Kautz model, has been demonstrated. Model based controllers are believed to be more efficient than classical controllers because explicit use of process model is essential with these modelling techniques. Extensive literature search concludes that very few reports are available which explore use of the model based control studies on resonant system. Two such model based controllers are considered in this work, viz. model predictive controller and internal model controller. A model predictive control algorithm has been developed using the Kautz model. The efficacy of the model and the controller has been verified by two case studies, viz. linear second order underdamped process and a mildly nonlinear magnetic ball suspension system. Comparative assessment of performances of these controllers in those case studies have been carried out. | Shamik Misra Rajasekhara Reddy Prabirkumar Saha | 2016 | International Journal of Automation and computing2016，13，5： | 0 |
| 7 | A Nash Game Approach to Mixed H_2/H_∞ Model Predictive Control: Part 3–Output Feedback Case显示文摘In this paper, the state-feedback Nash game based mixed H_2/H_∞ design^([1, 2])has been extended for output feedback case. The algorithm is applied to control bioreactor system with a Laguerre-Wavelet Network(LWN)^([3, 4])model of the bioreactor.This is achieved by using the LWN model as a deviation model and by successively linearising the deviation model along the state trajectory. For reducing the approximation error and to improve the controller performance, symbolic derivation algorithm, viz.,automatic differentiation is employed. A cautionary note is also given on the fragility of the output feedback mixed H_2/H_∞ model predictive controller^([4, 5])due to its sensitivity to its own parametric changes. | Pakkiriswamy Aadaleesan Prabirkumar Saha | 2018 | International Journal of Automation and computing2018，15，5： | 0 |
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