Proceedings of the 5th International Conference on Inverse Problems in Engineering: Theory and Prac- tice, Cambridge, UK, 11-15th July 2005 A NEW INVERSE SOLVER FOR DIFFUSION TOMOGRAPHY USING MULTIPLE SOURCES

Proceedings of the 5th International Conference on Inverse Problems in Engineering: Theory and Prac- tice, Cambridge, UK, 11-15th July 2005 AN ITERATIVE METHOD FOR RECONSTRUCTION OF TEMPERATURE

Proceedings of the 5th International Conference on Inverse Problems in Engineering: Theory and Prac- tice, Cambridge, UK, 11-15th July 2005 INITIAL TEMPERATURE RECONSTRUCTION FOR A NONLINEAR HEAT EQUA- TION: APPLICATION TO RADIATIVE AND CONDUCTIVE HEAT TRANSFER

S. S. PEREVERZYEV, R. PINNAU and N. SIEDOW 1 Fraunhofer-Institut für Technound Wirtschaftsmathematik, Gottlieb-Daimler-Straße, D-67663 Kaiserslautern, Germany e-mail: [email protected] 2 Fachbereich Mathematik, Technische Universität Kaiserslautern, D-67663 Kaiserslautern, Germany e-mail: [email protected] 3 Fraunhofer-Institut für Technound Wirtschaftsmathematik, Gottlieb-Daimler-...

Proceedings of the 5th International Conference on Inverse Problems in Engineering: Theory and Prac- tice, Cambridge, UK, 11-15th July 2005 COMPARISON OF TWO FUNCTIONALS FOR DIFFERENT MEASUREMENT PRINCIPLES FOR NON-LINEAR CAPACITANCE TOMOGRAPHY B. KORTSCHAK and B. BRANDSTÄTTER

Abstract – A model based, non-linear reconstruction for Electrical Capacitance Tomography (ECT) is considered as an inverse problem to find the spatial distributed permittivities in a pipe. In practice measurements are performed with a limited number of electrodes and multiple independent measurements are necessary to get information about the whole interior. In this paper the superposition of ...

Proceedings of the 5th International Conference on Inverse Problems in Engineering: Theory and Practice, Cambridge, UK, 11-15th July 2005 NONSTATIONARY BOUNDARY ESTIMATION IN ELECTRICAL IMPEDANCE TOMOGRAPHY BASED ON THE IMM SCHEME

In this paper, an effective nonstationary boundary estimation scheme in EIT is presented based on the interacting multiple model (IMM) algorithm. The inverse problem is treated as a stochastic nonlinear state estimation problem with the time-varying boundary (state) being estimated on-line with the aid of the IMM algorithm. In the design of the IMM algorithm multiple models with different proce...

Proceedings of the 5th International Conference on Inverse Problems in Engineering: Theory and Prac- tice, Cambridge, UK, 11-15th July 2005 NEWLY DEVELOPED STRESS INCREMENT MEASUREMENT TECHNIQUE IN PLASTIC REGION BASED ON STRESS INVERSION THEORY

Newly developed stress increment measurement technique is presented. Based on stress inversion theory proposed by authors, spontaneous stress increment field can be obtained even if the material is under plastic deformation. We present here an application example of this technique by means of the stress increment field measurement at the crack tip of an aluminum plate under the monotonic loadin...