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| 1 | N4SID and MOESP Algorithms to Highlight the Ill-conditioning into Subspace Identification显示文摘In this paper,an analysis for ill conditioning problem in subspace identifcation method is provided.The subspace identifcation technique presents a satisfactory robustness in the parameter estimation of process model which performs control.As a frst step,the main geometric and mathematical tools used in subspace identifcation are briefly presented.In the second step,the problem of analyzing ill-conditioning matrices in the subspace identifcation method is considered.To illustrate this situation,a simulation study of an example is introduced to show the ill-conditioning in subspace identifcation.Algorithms numerical subspace state space system identifcation(N4SID)and multivariable output error state space model identifcation(MOESP)are considered to study,the parameters estimation while using the induction motor model,in simulation(Matlab environment).Finally,we show the inadequacy of the oblique projection and validate the efectiveness of the orthogonal projection approach which is needed in ill-conditioning;a real application dealing with induction motor parameters estimation has been experimented.The obtained results proved that the algorithm based on orthogonal projection MOESP,overcomes the situation of ill-conditioning in the Hankel s block,and thereby improving the estimation of parameters. | Slim Hachicha Maher Kharrat Abdessattar Chaari | 2014 | International Journal of Automation and computing2014，11，1： | 3 |
| 2 | Salinity Risk and Management in Tunisian Semi Arid Area显示文摘 | Mohamed Hachicha Sabri Kanzari Mohsen Mansour Omar Jouzdan Awadis Arselan | 2013 | Journal of Life Sciences2013，7，2： | 2 |
| 3 | Usefulness of the Valvuloarterial Impedance to Predict Adverse Outcome in Asymptomatic Aortic Stenosis显示文摘 | Zeineb Hachicha Jean G. Dumesnil Philippe Pibarot | 2009 | Journal of the American College of Cardiology2009，，11： | 2 |
| 4 | Paradoxical Low-Flow, Low-Gradient Severe Aortic Stenosis Despite Preserved Ejection Fraction Is Associated With Higher Afterload and Reduced Survival显示文摘 | Zeineb Hachicha Jean G. Dumesnil Peter Bogaty Philippe Pibarot | 2007 | Circulation2007，，22： | 2 |
| 5 | Usefulness of exer- cise-stress echocardiography for risk stratification of true asymptomat- ic patients with aortic valve stenosis 显示文摘 | Marrchaux S Hachicha Z Bellouin A | 2010 | Eur Heart J2010，31，11： | 1 |
| 6 | Biological activity during co-composting of sludge issued from the OMW evaporation ponds with poultry manure-Physico-chemical characterization of the processed organic matter显示文摘 | Hachicha S Sellami F Cegarr J | 2009 | Journal of Hazardous Materials2009，，162： | 1 |
| 7 | Evolution of the fatty fraction during co-composting of olive oil industry wastes with animal manure: Maturity assessment of the end product显示文摘 | Ridha Hachicha Salma Hachicha Imen Trabelsi Steve Woodward Tahar Mechichi | 2009 | Chemosphere2009，，10： | 1 |
| 8 | The impact of longterm irrigation on changes of ground water level and soil salinity in northern Tunisia 显示文摘 | Hachicha M Cheverry C MhiriI A | 2000 | Arid Soil Research and Rehabilitation2000，14，： | 1 |
| 9 | Maturity assessment of corn- posted olive mill wastes using UV spectra and humification parameters 显示文摘 | Sellami F Hachicha S Chtourou M | 2008 | Bioresour Technol2008，99，： | 1 |
| 10 | Maturity assessment of cornposted olive mill wastes using UV spectra and humification parameters 显示文摘 | Sellami F Hachicha S Chtourou M | 2008 | Bioresour Technol2008，99，： | 1 |
| 11 | A fuzzy logic control using a differential evolution algorithm aimed at modeling the financial market dynamics显示文摘 | Hachicha N Jarboui B Siarry P | 2011 | Information Sciences2011，181，1： | 1 |
| 12 | A6 peptide activates CD44 adhesive activity, induces FAK and MEK phosphorylation, and inhibits the migration and metastasis of CD44-expressing ceils 显示文摘 | Piotrowicz RS Damaj BB Hachicha M | 2011 | Mol Cancer Ther2011，10，11： | 1 |
| 13 | Expression of the cytokine RANTES in human rheumatoid synovial fibroblasts:differential regulation of RANTES and interleukin-8 genes by inflammatory cytokines 显示文摘 | Rathanaswami PM Hachicha M Sadick T | 1993 | J Biol Chem1993，268，： | 1 |
| 14 | Paradoxical low-flow gradient severe aortic stenosis despite preserved ejection fraction is associated with higher after load and reduced survival显示文摘 | Hachicha Z Dumesnil JG Bogaty P | | Circulation0，，： | 1 |
| 15 | Paradoxical low-flow,low-gradient severe aortic stenosis despite preserved ejection fraction is associated with higher afterload and reduced survival显示文摘 | Hachicha Z Dumesnil JG Bogaty P | 2007 | Circulation2007，115，22： | 1 |
| 16 | Inflammatory microcrystals differentially regulate the secretion of macrophage inflammatory protein 1 and interleukin 8 by human neutrophils:a possible mechanism of neutrophil recruitment to sites of inflammation in synovitis显示文摘 | Hachicha M Naccache P H Mccoll S R | 1996 | J Exp Med1996，182，6： | 1 |
| 17 | Experimental intraca- meral injection of vancomycin microparticles in rabbits显示文摘 | Kodjikian L Coupfie J Hachicha W | 2010 | Invest Ophthalmol Vis Sci2010，51，8： | 1 |
| 18 | Sliding modecontrol and neuro-fuzzy network observer for inductionmotor in EVs applications 显示文摘 | Ghariani M Hachicha M R LtifiA | 2011 | International Journal ofElectric and Hybrid Vehicles2011，3，1： | 1 |
| 19 | Usefulness of the valvuloarterial impedance to predict adverse outcome in asymptomatic aortic stenosis显示文摘 | Hachicha Z Dumesnil JG Pibarot P | 2009 | J Am Coll Cardiol2009，54，11： | 1 |
| 20 | Inflammatory microcry stals differenbiallly regnlabe the secrebion of maerophage inflammatory protein 1 and interlenkin 8 by human hewbrophils:a possible mechanism of neutrophil recruitment to sites of inflammation in synovibis显示文摘 | Na cca che PH McColl SR | 1995 | J Exp Med1995，182，： | 1 |
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