Jerome jouffroy. Ilmenau, Germany 18-20 March 2019 IEEE Catalog Number: ISBN: CFP19MCH-POD 978-1-5386-6960-0 2019 IEEE International Conference on Mechatronics (ICM 2019)Jerome JOUFFROY(ORLÉANS). Jerome jouffroy

 
Ilmenau, Germany 18-20 March 2019 IEEE Catalog Number: ISBN: CFP19MCH-POD 978-1-5386-6960-0 2019 IEEE International Conference on Mechatronics (ICM 2019)Jerome JOUFFROY(ORLÉANS)Jerome jouffroy  a service of

This paper presents a simulation model environment for the popular and low-cost remotely operated vehicle (ROV) BlueROV2 implemented in Simulink™ which has been designed and experimentally validated for benchmark control algorithms for underwater vehicles. sdu. Sept 2018, 2018 IEEE/ASME International Conference on Advanced. Current and Past Projects:Jérôme Jouffroy’s Post Jérôme Jouffroy Directeur Industriel chez COBHAM AEROSPACE COMMUNICATIONS 1y Report this post 😍. Lin Xiao, Jerome Jouffroy. when they are in the so-called “no-go zone”. FreeD project will develop technologies that makes it possible for drones to fly. Interestingly. (2011b)), simple feedback algorithms referred to as Sector-of-Sight controllers were used to make Lagrangian profilers select ocean currents for. Jerome Jouffroy and Qiuyang Zhou Mads Clausen Institute University of Southern Denmark (SDU) DK-6400 Sonderborg, Denmark e-mail: [email protected] Jouffroy; View. All figure content in this area was uploaded by Jerome Jouffroy. Jerome Jouffroy. Author content. Report this post Report Report8th IFAC Conference on Control Applications in Marine Systems Rostock-Warnemünde, Germany September 15-17, 2010 Reflexions on Feedforward Control Strategies for a Class of Sailing Vehicles Lin Xiao and Jerome Jouffroy Mads Clausen Institute University of Southern Denmark (SDU) Alsion 2, DK-6400, Sønderborg,. Using Fossen's compact notation for marine vehicles, we first. Content uploaded by Jerome Jouffroy. This paper presents a study on the development and testing of a model-based heading controller for a sailing yacht. dk; Tel. 06/03/2023. University of Southern Denmark On steering a sailing ship in a wearing maneuver Jouffroy, Jerome. Jerome Jouffroy Contraction analysis is a recent tool for analyz- ing the convergence behavior of nonlinear systems in state- space form (see Lohmiller and Slotine [16] for the main reference). SMC 2006: 2584-2589. Content may be subject to copyright. Des mots justes pour un monde plus juste. UCL, SDU, FIIBL. Jerome Jouffroy. Jerome Jouffroy. Join. Decentralized receding horizon control for large scale. Jerome Jouffroy. dk. Directeur Industriel chez COBHAM AEROSPACE COMMUNICATIONS 1yA control-theoretic outlook at the no-go zone in sailing vessels Bin Yang†, Lin Xiao ‡, and Jerome Jouffroy Mads Clausen Institute University of Southern Denmark (SDU) Alsion 2, DK-6400. View the profiles of people named Jerome Jouf. G. Overview. Vancouver Sun Archives 1912 - 2021. 1041. no Jean-Jacques E. Jouffroy is a surname. Log in or sign up for Facebook to connect with friends, family and people you know. downlo. Proceedings of OCEANS 2005 MTS/IEEE. In their current mode of operation, the profilers usually. at tidevandet vender, forklarer Jerome Jouffroy. University of Southern Denmark. Jerome Jouffroy; Qiuyang Zhou; Oliver Zielinski; Autonomous Lagrangian profilers are widely used as measurement and monitoring platforms. Jérôme Joffroy. The approach consists of diffusion-based observers processing aShared with Each photo has its own privacy settingJerome Jouffroy This paper considers the on-line implementation of the modulating function method, for parameter and state estimation, for the model of an air-handling unit, the central element of. 241-55 (2000). Lee USA Wei. Discover the world's research. 1405776 Corpus ID: 14138265; Towards on-line underwater vehicle trajectory estimation using diffusion-based observers @article{Jouffroy2004TowardsOU, title={Towards on-line underwater vehicle trajectory estimation using diffusion-based observers}, author={J{'e}r{^o}me Jouffroy and Tu Due. Jerome Jouffroy. Name Email Department City; Jérôme Jouffroy: jerjo@mmmi. Jérôme Jouffroy’s Post Jérôme Jouffroy Directeur Industriel chez COBHAM AEROSPACE COMMUNICATIONS 11mo Report this post Report Report. This also motivated a large amount of work to extend these structures to nonlinear plants, either by local or exact linearization, or by introducing robustness properties. Content may be subject to copyright. Professor Jerome Jouffroy delves into this crucial discussion in his latest article. Jérôme Jouffroy posted images on LinkedIn. Andrei Popa, Simon Iversen, Lars Duggen & Jerome Jouffroy Advanced Manufacturing Research Center, Youngstown State University, Youngstown, OH, 44555, USA Brian Zellers, Dillon Kennedy, Pedro Cortes, Brett Conner & Eric MacDonaldOn algebraic time-derivative estimation and deadbeat state reconstruction Johann Reger† and Jerome Jouffroy‡ Abstract— This paper places into perspective the so-called practical interest, we recall here only the main result for a algebraic time-derivative estimation method recently introduced moving-horizon version of the approach (see [21] and [35]). (2011a) and Jouffroy et al. Press/Media: Press / Media. Cette fusion, une des toutes premières en. This paper discusses the use of techniques related to the modulating function method for performing joint parameter and state estimation. Facebook gives people the power. 14/03/2023. Jerome Jouffroy University of Southern Denmark Abstract and Figures This paper briefly presents the main points on the development and testing of an extremum. - Der er nogle nøgleudfordringer, der skal overvindes. University of Southern Denmark (SDU) DK-6400 Sonderborg, Denmark. This analysis should help with the design of small and. Discover the world's research. Jerome Jouffroy; Thor I. Krstic, and N. FormationContraction theory entails a theoretical framework in which convergence of a nonlinear system can be analysed differentially in an appropriate contraction metric. Log In. Jerome Jouffroy Contraction theory is a recent tool enabling to study the stabil-ity of nonlinear systems trajectories with respect to one another, and therefore belongs to the class of. Kenward Canada Dave Kiehl USA Katherine H. Découvrez ses expériences et son réseau professionnel comme Yannick SUZANNE. See Photos. Jérôme Jouffroy posted on LinkedIn3D Printed Hybrid Flexible Electronics with Direct Light Synthesis Andrei Popa1, Brian Zellers2, Simon Iversen1, Dillon Kennedy2, Pedro Cortes2, Lars Duggen1, Jerome Jouffroy1, Kirk Rogers3, Brett. Professor Jerome Jouffroy delves into this crucial discussion in his latest article. no, [email protected] Ionesi , Hossein Ramezaniy, Jerome Jouffroy z SDU Mechatronics, Mads Clausen Institute, University of Southern Denmark, DK-6400 Alsion 2, Sønderborg, Denmark October 23, 2018AU - Jouffroy, Jerome. or. Institute for Chemistry and. Enter the email address you signed up with and we'll email you a reset link. Seville, Spain. Jerome Jouffroy. This repository contains MATLAB scripts and Simulink models for the purpose of creating a low-level controller for UBC Sailbot. JØrôme Jouffroy Center for Ships and Ocean Structures (CESOS) Norwegian University of Science and Technology (NTNU) NO-7491 Trondheim, Norway e-mail: jouffroy@ntnu. Biography [ edit ] Jouffroy was born in Dijon , France, the. Vazquez, M. Proceedings of OCEANS 2005 MTS/IEEE. 48-54]. dk). Using Fossen's compact notation for marine vehicles, we first. Balas (2006). After a short review of other methods related to modulating functions, we look at observability issues and the so-called Least-Squares observers to extend currently existing results on joint parameter and state estimation using modulating functions. Active since 2014 Contact. . Using Fossen’s compact notation for marine vehicles, we first describe a nonlinear four-degree-of-freedom (DOF) dynamic model for a sailing yacht, including roll. 39, no. Jérôme Jouffroy’s Post Jérôme Jouffroy Directeur Industriel chez COBHAM AEROSPACE COMMUNICATIONS 1y Report this post Report Report. 1 Media contribution. Fossen; This paper presents a formation modelling scheme based on a set of inter-body constraint functions and Lagrangian multipliers. dkDespite their interesting dynamic and controllability properties, sailing vehicles have not been much studied in the control community. In particular, it is shown that the algebraic method can in a. Jouffroy, Jerome. Contributors: Robert Brehm; Mohammad Hossein Ramezani; Jerome Jouffroy Show more detail. In this paper, we investigate motion. Report this post Report Report Content uploaded by Jerome Jouffroy. View the profiles of people named Jouffroy Jérôme. In particular, it is shown that the algebraic method can essentially be seen as a special case of deadbeat state. 06/03/2023. pdf. Show more. This paper addresses the issue of estimating under- water vehicle trajectories using gyro-Doppler (body-fixed veloci- ties) and acoustic positioning signals (earth-fixed positions). Data. The approach is indeed interesting, even though it. feb. Jouffroy. ntnu. An Open-Source Benchmark Simulator: Control of a BlueROV2 Underwater Robot. Autonomous Lagrangian profilers are now widely used as measurement and monitoring platforms, notably in observation programs as Argo. (2009). J. Enseignant et conférencier | Initiateur d'AlmaMater, du Printemps écologique et de Sailcoop | Plus sur linktr. compass is mounted on the vehicle, there is an. In: Proc. July 2002 · IFAC Proceedings Volumes (IFAC Papers-OnLine) Jerome Jouffroy. no). A simple extension of contraction theory to study incremental stability properties. Fossen. Jerome Jouffroy; This paper presents a study on the development and testing of a model-based heading controller for a sailing yacht. D. Jerome Jouffroy J. Jérôme Jouffroy. Ionesi; Mohammad Hossein Ramezani; Jerome Jouffroy Show more detail. Keywords: Contraction theory,. In a typical mode of operation, the profilers drift passively at their parking depth before making a vertical profile to go back to the surface. ad. There are 5 professionals named "Jérôme Jouffroy", who use LinkedIn to exchange information, ideas, and opportunities. On algebraic time-derivative estimation and deadbeat state reconstruction Johann Reger† and Jerome Jouffroy‡ Abstract— This paper places into perspective the so-called practical interest, we recall here only the main result for a algebraic time-derivative estimation method recently introduced moving-horizon version of the approach (see [21] and [35]). @Article {jmse10121898, AUTHOR = {von Benzon, Malte and Sørensen, Fredrik Fogh and Uth, Esben and Jouffroy, Jerome and Liniger, Jesper and Pedersen, Simon}, TITLE = {An Open-Source Benchmark Simulator: Control of a BlueROV2 Underwater Robot}, JOURNAL = {Journal of Marine Science and Engineering}, VOLUME = {10}, YEAR = {2022},. Mads Clausen Institute, Sønderborg, Denmark. by Fliess and co-authors with. Content available from Jerome Jouffroy: Jouffroy-2007joe. Log In. Hanne Peoples #825643. aau. François JOUFFROY #recrute. Jerome Jouffroy. Arenzano, Italy Nonlinear Robust Heading Control for Sailing Yachts Lin Xiao Thor I. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list. . Blanke, ibid. , F. Ihle, Ivar-André F. Ophavsret. Jerome Jouffroy; This paper presents a study on the development and testing of a model-based heading controller for a sailing yacht. 2003. Jérôme Jouffroy. pdf. US 9,139,272 B2 1. Jerome Marsoudet. Jerome Jouffroy. 1109/OCEANS. (2003). Control systems, model-based. Show more. Steinar Vike Jerome Jouffroy. Torsetnes, J. . dk and jerome@mci. 1109/J0E. There are 5 professionals named "Jerome Jouffroy", who use LinkedIn to exchange information, ideas, and opportunities. Imsland, and E. Email: [email protected]. View the profiles of people named Jerome Jouffroy. 201912 år. Jiaxi He Lin Xiao Jerome Jou roy Mads Clausen Institute, University of Southern Denmark (SDU), Alsion 2, DK-6400, S˝nderborg, Denmark jiaxihe1989@gmail. Jerome Jouffroy Autonomous Lagrangian profilers are now widely used as measurement and monitoring platforms, notably in observation programs as Argo. Jouffroy is with the Center for Ships and Ocean Structures, Norwegian University of Science and Technology, Trondheim NO-7491, Norway (e-mail: jouffroy@marin. (Jouffroy and Opderbecke, 2004) processing whole segments of a trajectory at a time. (2010) designed the controller for the rudder based on the feedback linearization technique, Xiao and Jouffroy (2011) and He et al. The functions are treated analytically and by using feedback from the imposed constraint functions, constraint forces arise. We propose a method for constructing control laws for formation control of marine craft using classical tools from analytical mechanics. N2 - This paper introduces a methodology for dierential nonlinear stability analysis using contraction theory (Lohmiller and Slotine, 1998). <br /> Han er lektor og ph. Academic Editor: Onur Toker. Abstract. PH. Jerome Jouffroy SDU Mechatronics, Mads Clausen Institute University of Southern Denmark Alsion 2 Sønderborg, 6400, DENMARK ABSTRACT This paper considers parameter estimation of a reduced-order model (ROM) for building energy dynamics using the modulating function (MF) method. [11] A. Associate professor Jerome Jouffroy received one of the three teaching awards from the BHJ Foundation Biography. November 13, 2013 International Journal of Systems Science paper can be utilized in the context of contraction theory to analyze convergence of systems, basedNous avons le plaisir d'annoncer la fusion de l'étude Jouffroy-Bonnotte Gagnepain - Mignerey et du Cabinet d'avocats en droit des affaires Fileas. The desired formation configuration is given as a set of constraint functions. This paper discusses the use of techniques related to the modulating function method for performing joint parameter and state estimation. Content may be subject to copyright. Y1 - 2014/4. This paper addresses the issue of estimating underwater vehicle trajectories using Gyro-Doppler (body-fixed velocities) and acoustic signals (earth-fixed positions). von Benzon M, Sørensen FF, Uth E, Jouffroy J, Liniger J, Pedersen S. Ilmenau, Germany 18-20 March 2019 IEEE Catalog Number: ISBN: CFP19MCH-POD 978-1-5386-6960-0 2019 IEEE International Conference on Mechatronics (ICM 2019)Jerome JOUFFROY(ORLÉANS). Content may be subject to copyright. Vazquez, M. In order to adapt to harsh conditions. In the work presented by Fossen and Blanke, a nonlinear observer for estimation of. Insbesondere wird anhand einfacher Rechnungen gezeigt, wie sich das algebraische Verfahren als ein Sonderfall der Zustandsrekonstruktion mit. Borrelli and G. Mads Clausen Institute, Sønderborg, Denmark. chaos. Softwareagenten in der Industrie 4. 1041. dk. Content may be subject to copyright. Rabe, A. , F. dk ABSTRACT In this paper we develop a simplified mathematicaljerome@mci. These are then used in combination with an integrator-based time. These are then used in combination with an integrator-based time. Di Meglio, R. 00% VOTES RECEIVED 0. C. Jerome Jouffroy; This paper contributes a simple and intuitive result in the analysis of underwater navigation using a single ranging beacon. sdu. The BlueROV2 model is based on Fossen’s equations and includes. Ivar-Andre F. Jérôme Jouffroy Expand search. Jérôme Jouffroy’s Post Jérôme Jouffroy Directeur Industriel chez COBHAM AEROSPACE COMMUNICATIONS 1y Report this post Report Report. Engineering. ” “I’m eager to see how much additional crane and load capacity can be added to our workboats in order to increase their operational range and to. Nonlinear Control and Observer Design for Dynamic Positioning using Contrac- tion Theory. Jerome Jouffroy. Log in or sign up for Facebook to connect with friends, family and people you know. However, note that the results shown in the present paperJerome Jouffroy Denmark James B. dk, duggen@mci. This paper studies the position estimation of an underwater vehicle using a single acoustic transponder. Gaelle. Back. (2009). The method relies on the diffusion-based. This paper addresses the issue of estimating underwater vehicle trajectories using gyro-Doppler (body-fixed velocities) and acoustic positioning signals (earth-fixed positions) with results of contraction theory used to prove that the observers. Jerome Jouffroy; Qiuyang Zhou; Oliver Zielinski; Autonomous Lagrangian profilers are widely used as measurement and monitoring platforms. XIAO AND JOUFFROY: MODELING AND NONLINEAR HEADING CONTROL OF SAILING YACHTS 3Jerome Jouffroy and Benny Lassen are with the Mads Clausen Institute, University of Southern Denmark, Alsion 2, 6400 Sønderborg, Denmark. . Revised 05 Jul 2011. Jouffroy-2003un. Join Facebook to connect with Jerome Jouf and others you may know. Jerome Marsoudet. The first edition took place in 1902. In a world where geopolitical shifts are reshaping the landscape, we must consider the role of innovation in. After a short review of other methods related to modulating functions, we look at observability issues and the so-called Least-Squares observers to extend currently existing results on joint parameter and state. Email or phone: Password: Forgot account? People named Jouffroy Jérôme. Mads Clausen Institute . DLillebaelt. D. 2018-08-01 | Book. Seville, Spain. Jerome Jouffroy This paper studies the position estimation of an underwater vehicle using a single acoustic transponder. (2012) designed the backstepping control laws, where He et al. French National Cyclo-cross Championships. The last expression can be regarded as an extension of the well-known Krasovskii method using a time and state dependent metric. JOUFFROY & FILEAS | 322 followers on LinkedIn. 2007 – okt. Dashboard; Badges; Statistics. SlotineThis paper discusses convergence issues of the basic particle swarm optimization algorithm for different parameters. Enter the email address you signed up with and we'll email you a reset link. UCL. January 2005. 2. | Underwater, Observer and Motion. Sensor Misalignment and Trajectory Estimation where and , which is often encountered In the case where there is a misalignment in the way the gyro- in adaptive control [15], [37], [46]. Using Fossen's compact notation for marine vehicles, we first. On algebraic time-derivative estimation and deadbeat state reconstruction Johann Reger† and Jerome Jouffroy‡ Abstract— This paper places into perspective the so-called practical interest, we recall here only the main result for a algebraic time-derivative estimation method recently introduced moving-horizon version of the approach (see [21] and [35]). 44th IEEE Conf. dk. IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM. All content in this area was uploaded by Jerome Jouffroy. Contraction theory is a recently developed nonlinear analysis tool which may be useful for solving a variety of non linear control problems. They work on both low-level and high-level integration, from Raye’s integrated sensor network to its pathfinding algorithm. Interestingly, dynamical models of sailing vessels, which are usually quite complex, all haveJerome Jouffroy; Information about the internal position and velocity of a robotic system is crucial for its control. Konrad USA Warren S. . The chosen estimation approach is based on nonlinear differential algebraic methods which allow to express very simply con- ditions for observability. Professor Jerome Jouffroy delves into this crucial discussion in his latest article. ANSWER ACCEPTANCE 0. dk). Fossen, Affiliation: University of Southern Denmark, NTNU, Department of Engineering Cybernetics and NTNU, Centre for Ships and Ocean Structures Reference: 2010, Vol 31, No 3, pp. sdu. All content in this area was uploaded by Jerome Jouffroy. The observer produces accurate estimates of position, slowly varying environmental. dk, rst@mci. Course: Teaching. In this paper, we investigate motion planning of such vehicles. SOURCE-WORK-ID: 923a671d-238b-4b38-99b5-1193e4a409ec. . Jerome Jouffroy; This paper presents a study on the development and testing of a model-based heading controller for a sailing yacht. Proceedings of the 8th IFAC International Conference on Manoeuvring and Control of Marine Craft September 16-18, 2009, Guarujá (SP), Brazil On Steering a Sailing Ship in a Wearing Maneuver Jerome Jouffroy Mads Clausen Institute University of Southern Denmark (SDU) Alsion 2, DK-6400 Sønderborg, Denmark e-mail:. In New Directions in Nonlinear Observer Design, pages 113–134. Content available from Jerome Jouffroy: 0912f50fffd864e66c000000. Professor Jerome Jouffroy delves into this crucial discussion in his latest article. The model is based on Modeling and Nonlinear Heading Control of Sailing Yachts by Jerome Jouffroy. Jerome Jouffroy; This paper addresses the issue of rejecting spurious acoustic position measurements for the estimation of trajectories in underwater vehicle navigation. Share. In a world where geopolitical shifts are reshaping the landscape, we must consider the role of innovation in. . Data. Download. 52 KB; Download file. dk Phone: +4565501642. Excellente initiative ! Oui, oubliez Amazon s’il vous plaît ! Directeur Industriel chez COBHAM AEROSPACE COMMUNICATIONS 10moJerome Jouffroy University of Southern Denmark (SDU) Mads Clausen Institute Alsion 2 DK-6400 Sønderborg, Denmark e-mail: jerome@mci. A. . In a world where geopolitical shifts are reshaping the landscape, we must consider the role of innovation in. Overview; Fingerprint; Abstract. The chosen estimation approach is based on nonlinear differential algebraic methods which allow to express very simply con- ditions for observability. In Proceedings of. 10/03/2023. Jerome Jouffroy received the Diplome d'Etudes Approfondies in applied control systems and the Ph. Jouffroy, J. 2, 2014. Uniform global exponential stability (UGES) of the resulting system is proven by assuming that the feedback control system is UGES and that the nonlinear observer can be designed using contracting analysis. All figure content in this area was uploaded by Jerome Jouffroy. Download. Using Fossen’s compact notation for marine vehicles, we first de- scribe a nonlinear four-degree-of-freedom (DOF) dynamic model for a sailing yacht, including roll. Directeur Industriel chez COBHAM AEROSPACE COMMUNICATIONS 1mo All content in this area was uploaded by Jerome Jouffroy. Johann Reger. This paper considers the on-line implementation of the modulating function method, for parameter and state estimation, for the model of an air-handling unit, central element of HVAC systems. Jérôme Jouffroy Expand search. Once communications are interrupted on a. However, it seems that earlier results derived by mathematicians in the 1950s closely match some of the results of contraction analysis. The main interest of linear models is the wide panel of control structures that are available. Lee USA Wei. 2012, which claims benefit ofJerome Jouffroy. Jerome Jouffroy. Jerome Jouffroy Contraction analysis is a recent tool for analyz- ing the convergence behavior of nonlinear systems in state- space form (see Lohmiller and Slotine [16] for the main reference). “A lot of our ProZero work- and crewboat customers will benefit from an even more safe and stable platform to work from. . dk, benny@mci. PY - 2014/4. 313 - 326 , 10. Detection of Sensor Attack and Resilient State Estimation for Uniformly Observable Nonlinear Systems having Redundant Sensors. oktober. Sustainable Development Goals; Study programmes. IEEE Journal of Oceanic Engineering. Back. Facebook gives people the power. Source: check_circle. Jerome Jouffroy. . 29. All figure content in this area was uploaded by Jerome Jouffroy. In this paper, we extend the original definition of contrac- tion theory to incorporate in an explicit manner the. 12. Phone +4565501642. sdu. Dear Taghreed, Yes, my very good colleague Johann Reger and I have tried it on several examples. Since the. Consultez le profil complet sur LinkedIn et découvrez. View the profiles of professionals named "Jerome Jouffroy" on LinkedIn. Jerome Jouffroy Contraction theory is a recent tool enabling to study the stabil-ity of nonlinear systems trajectories with respect to one another, and therefore belongs to the class of. For this purpose a globally contracting observer which reconstructs the unmeasured states is constructed. 2006. In this paper, using Contraction theory, a nonlinear observer is designed for a general nonlinear cable/string FEM (Finite Element Method) model. INTERNALLY ACTUATED AUTONOMOUS SAILNG BUOY This application is a National Stage Application of PCT/ DK2012/050402, filed 31 Oct. Starting date is November 2022. Medical Microtechnology Summer school 2022;All content in this area was uploaded by Jerome Jouffroy. Using Fossen's compact. when they are in the so-called “no-go zone”. Kean USA Gary W. Using Fossen's compact notation for marine vehicles, we first. All content in this area was uploaded by Jerome Jouffroy. See Photos. Syddansk Universitet; Publikation: Bidrag til bog/antologi/rapport › Konferenceartikel i proceeding › peer review. Les Alliés ont trouvé les zones qui étaient. Join Facebook to connect with Jerome Jouffroy and others you may know. It is also closely related to the. All figure content in this area was uploaded by Jerome Jouffroy. Jerome Jouffroy Johann Reger In this paper, we propose the concept of accelerated convergence that has originally been developed to speed up the convergence of numerical methods for extremum. arXiv:0710. org Summary. Fossen **, Jerome Jouffroy * Show more. Karabchevsky Israel James G. Jérôme Jouffroy posted a video on LinkedIn. Jerome Jouffroy Contraction theory is a recent tool enabling to study the stabil- ity of nonlinear systems trajectories with respect to one another, and therefore belongs to the class of.