K. J. Åström and T. Hägglund, PID Controllers : Theory, Design, and Tuning, Instrument Society of America, 1995.

J. Barraud, Y. Creff, and N. Petit, PI controllers performance for a process model with varying delay, Proceedings of UKACC International Control Conference, 2004.

J. Barraud, Y. Creff, and N. Petit, Performances d'un prédicteur adaptatif pour un modele de procédé avec retard variable, Congrès de la Société Française de Génie des Procédés, 2005.

. [. Baes and R. E. Mesmer, The hydrolysis of cations, 1976.

]. J. Can04 and . Cannon, The one-dimensional heat equation, 2004.

G. [. Cohen and . Coon, Theoretical consideration of retarded control, Trans. A.S.M.E, vol.75, issue.1, pp.827-834, 1953.

M. Fliess, J. Lévine, . Ph, P. Martin, and . Rouchon, Flatness and defect of non-linear systems: introductory theory and examples, International Journal of Control, vol.4, issue.6, pp.1327-1361, 1995.
DOI : 10.1109/9.73561

. [. Gustafsson and K. V. Waller, Dynamic modeling and reaction invariant control of pH, Chemical Engineering Science, vol.38, issue.3, pp.389-398, 1983.
DOI : 10.1016/0009-2509(83)80157-2

C. C. Hang, K. J. Åström, and W. K. Ho, Refinements of the Ziegler???Nichols tuning formula, IEE Proceedings D Control Theory and Applications, vol.138, issue.2, pp.111-118, 1991.
DOI : 10.1049/ip-d.1991.0015

]. H. Kha01 and . Khalil, Nonlinear Systems, 2001.

A. D. Kalafatis, L. Wang, and W. R. Cluett, Linearizing feedforward???feedback control of pH processes based on the Wiener model, Journal of Process Control, vol.15, issue.1, pp.103-112, 2005.
DOI : 10.1016/j.jprocont.2004.03.006

[. Lin and C. Yu, Automatic tuning and gain scheduling for pH control, Chemical Engineering Science, vol.48, issue.18, pp.3159-3171, 1993.
DOI : 10.1016/0009-2509(93)80202-2

T. J. Mcavoy, H. Hsu, and S. Lowenthal, Dynamics of pH in Controlled Stirred Tank Reactor, Industrial & Engineering Chemistry Process Design and Development, vol.11, issue.1, pp.68-70, 1972.
DOI : 10.1021/i260041a013

. [. Bibliographie, S. Michiels, and . Niculescu, On the delay sensitivity of Smith predictors, International Journal of Systems Science, vol.34, issue.89, pp.543-552, 2003.

C. [. Maciejowski and . Yu, Predictive Control with Constraints, 2001.

Y. [. Petit, P. Creff, and . Rouchon, Motion planning for two classes of nonlinear systems with delays depending on the control, Proceedings of the 37th IEEE Conference on Decision and Control (Cat. No.98CH36171), 1998.
DOI : 10.1109/CDC.1998.760828

]. N. Pet00 and . Petit, Systèmes à Retards, 2000.

]. J. [-ric03 and . Richard, Time-delay systems : an overview of some recent advances and open problems, Automatica, vol.39, pp.1667-1694, 2003.

J. [. Rugh and . Shamma, Research on gain scheduling, Automatica, vol.36, issue.10, pp.1401-1425, 2000.
DOI : 10.1016/S0005-1098(00)00058-3

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

A. [. Silva, . Datta, and S. P. Bhattacharyya, PID Controllers for timedelay systems, Birkhäuser, 2005.

]. O. Smi58 and . Smith, Closer control of loops with dead time, Chemical Engineering Progress, vol.53, issue.5, pp.217-219, 1958.

[. Tona and J. Bader, EFFICIENT SYSTEM IDENTIFICATION FOR MODEL PREDICTIVE CONTROL WITH THE ISIAC SOFTWARE, 1st International Conference on Informatics in Control (ICINCO), 2004.
DOI : 10.1007/1-4020-4543-3_27

P. [. Tavakoli and . Fleming, Optimal tuning of PI controllers for first order plus dead time/long dead time models using dimensional analysis, Proc. of the 7th European Control Conf, 2003.

M. [. Tavakoli and . Tavakoli, Optimal tuning of PID controllers for first order plus time delay models using dimensional analysis, The Fourth International Conference on Control and Automation, 2003.

C. [. Wright and . Kravaris, Nonlinear control of pH processes using the strong acid equivalent, Industrial & Engineering Chemistry Research, vol.30, issue.7, pp.1561-1572, 1991.
DOI : 10.1021/ie00055a022

N. [. Ziegler and . Nichols, Optimum Settings for Automatic Controllers, Journal of Dynamic Systems, Measurement, and Control, vol.115, issue.2B, pp.759-765, 1942.
DOI : 10.1115/1.2899060

J. G. Ziegler and N. B. Nichols, Process lags in automatic-control circuits, Transp. A.S.M.E, vol.65, pp.433-444, 1943.