Structured Pseudospectra and Random Eigenvalues Problems in Vibrating Systems (2008)
T. Wagenknecht, A K. Green, B S. Adhikari
This paper introduces the concept of pseudospectra as a generalized tool for uncertainty quantification and propagation in structural dynamics. Different types of pseudospectra of matrices and matrix...
Structured Pseudospectra and Random Eigenvalues Problems in Vibrating Systems (2008)
T. Wagenknecht, K. Green, S. Adhikari, W. Michiels
This paper introduces the concept of pseudospectra as a tool for describing uncertainties in structural mechanics. Several types of pseudospectra are presented. In particular, we introduce structured...
Snaking of multiple homoclinic orbits in reversible systems (2007)
We study N-homoclinic orbits near a heteroclinic cycle in a reversible system. The cycle is assumed to connect two equilibria of saddle-focus type. Using Lin's method we establish the existence of...
Funktionalisierte Polymer-Feinstrukturen für Medizintechnik und Biotechnologie (2007)
Wagenknecht, T., Jäger, M., Sonntag, F.
Für die Entwicklung von speziellen polymeren Zellkultursubstraten für Biotechnologie und Medizintechnik wurde die gesamte technologische Kette von optimierten, aufeinander abgestimmten und...
Gap solitons in Bragg gratings with a harmonic superlattice (2006)
Yagasaki, K., Merhasin, I. M., Malomed, B. A., Wagenknecht, T., Champneys, A. R.
Solitons are studied in a model of a fiber Bragg grating (BG) whose local reflectivity is subjected to periodic modulation. The superlattice opens an infinite number of new bandgaps in the model's...
Structured pseudospectra for matrix functions (2005)
Wagenknecht, T, Michiels, W, Green, K
Submitted to Elsevier preprint
Detection of symmetric homoclinic orbits to saddle-centres in reversible systems (2005)
Yagasaki, Kazuyuki, Wagenknecht, T
Submitted to Elsevier preprint
Homoclinic Snaking near a Heteroclinic Cycle in Reversible Systems (2005)
Snaking curves of homoclinic orbits have been found numerically in a number of ODE models from water wave theory and structural mechanics. Along such a curve infinitely many fold bifurcation of...
Accumulation of embedded solitons in systems with quadratic nonlinearity (2005)
Malomed, B. A., Wagenknecht, T., Champneys, A. R., Pearce, M. J.
Previous numerical studies have revealed the existence of embedded solitons (ESs) in a class of multi-wave systems with quadratic nonlinearity, families of which seem to emerge from a critical point...
Michiels, W, Green, K, Wagenknecht, T, Niculescu, Silviu-Iulian
Preprint submitted to Elsevier Science
Structured pseudospectra in structural engineering (2005)
Preprint of a paper later published by John Wiley & Sons (2005), International Journal for Numerical Methods in Engineering, 64(13), pp.1735-1751, ISSN 0029-5981
Accumulation of embedded solitons in systems with quadratic nonlinearity (2005)
Malomed, BA, Wagenknecht, T, Champneys, AR, Pearce, MJ
Preprint of a paper later published by American Institute of Physics (2005), Chaos, 15(3), Art. No. 037116, ISSN 1054-1500
Structured pseudospectra and random eigenvalues problems in vibrating systems (2005)
Wagenknecht, T, Green, K, Adhikari, S, Michiels, W
This paper introduces the concept of pseudospectra as a generalized tool for uncertainty quantification and propagation in structural dynamics. Different types of pseudospectra of matrices and matrix...
Pseudospectra of delay differential equations (2004)
In this paper we present a new method for computing the pseudospectra of delay di erential equations (DDEs) with fixed finite delay. This provides information on the sensitivity of eigenvalues under...
Fast 3D motif search of EM density maps using a locally normalized cross-correlation function (2003)
Rath,B. K., Hegerl,R., Leith,A., Shaikh,T. R., Wagenknecht,T., Frank,J.
When gap solitons become embedded solitons: a generic unfolding (2003)
Wagenknecht, T., Champneys, A. R.
A two-parameter unfolding is considered of single-pulsed homoclinic orbits to an equilibrium with two real and two zero eigenvalues in fourth-order reversible dynamical systems. One parameter...
Fast 3D motif search of EM density maps using a locally normalized cross-correlation function (2003)
Rath, B. K., Hegerl, R., Leith, A., Shaikh, T. R., Wagenknecht, T., Frank, J.
When gap solitons become embedded solitons : an unfolding via Lin's method (2002)
Preprint of a paper later published by Elsevier Science (2003), Physica D : Nonlinear phenomena, 177 (1-4), pp.50-70, ISSN 0167-2789
Three-dimensional structure of the large ribosomal subunit from Escherichia coli.
Radermacher, M, Wagenknecht, T, Verschoor, A, Frank, J
The three-dimensional structure of the large (50S) ribosomal subunit from Escherichia coli has been determined from electron micrographs of negatively stained specimens. A new method of...
Wagenknecht, T, Grassucci, R, Berkowitz, J, Wiederrecht, G J, Xin, H B, Fleischer, S
A 12-kDa immunophilin (FKBP12) is an integral component of the skeletal muscle ryanodine receptor (RyR). The RyR is a hetero-oligomeric complex with structural formula (FKBP)4(Ryr1)4, where Ryr1 is...
Wagenknecht, T, Berkowitz, J, Grassucci, R, Timerman, A P, Fleischer, S
Calmodulin (CaM) is a regulator of the calcium release channel (ryanodine receptor) of the sarcoplasmic reticulum of skeletal and cardiac muscle. The locations where CaM binds on the surface of the...
Radermacher, M, Wagenknecht, T, Grassucci, R, Frank, J, Inui, M, Chadwick, C, ...
The native structure of the calcium release channel (ryanodine receptor) from rabbit skeletal muscle has been analyzed in two dimensions from electron micrographs of frozen hydrated specimens. Within...
Benacquista, B L, Sharma, M R, Samsó, M, Zorzato, F, Treves, S, Wagenknecht, T
We have localized a region contained within the sequence of amino acid residues 4425-4621 on the three-dimensional structure of the skeletal muscle ryanodine receptor (RyR). Mouse monoclonal...
Electron tomography of frozen-hydrated isolated triad junctions.
Wagenknecht, T, Hsieh, C-E, Rath, B K, Fleischer, S, Marko, M
Cryoelectron microscopy and tomography have been applied for the first time to isolated, frozen-hydrated skeletal muscle triad junctions (triads) and terminal cisternae (TC) vesicles derived from...
Three-dimensional reconstruction of the ribosome from Escherichia coli.
Wagenknecht, T, Carazo, J M, Radermacher, M, Frank, J
Three-dimensional image reconstruction has been applied to electron micrographs of noncrystalline, negatively stained ribosomes obtained from Escherichia coli. Several independent reconstructions all...
Carazo, J M, Wagenknecht, T, Frank, J
Electron microscopic techniques are among the most important tools for obtaining structural information of biological specimens. However, the three-dimensional (3D) structural analysis of...
Three-dimensional structure of the large ribosomal subunit from Escherichia coli.
Radermacher, M, Wagenknecht, T, Verschoor, A, Frank, J
The three-dimensional structure of the large (50S) ribosomal subunit from Escherichia coli has been determined from electron micrographs of negatively stained specimens. A new method of...
Wagenknecht, T, Grassucci, R, Berkowitz, J, Wiederrecht, G J, Xin, H B, Fleischer, S
A 12-kDa immunophilin (FKBP12) is an integral component of the skeletal muscle ryanodine receptor (RyR). The RyR is a hetero-oligomeric complex with structural formula (FKBP)4(Ryr1)4, where Ryr1 is...
Wagenknecht, T, Berkowitz, J, Grassucci, R, Timerman, A P, Fleischer, S
Calmodulin (CaM) is a regulator of the calcium release channel (ryanodine receptor) of the sarcoplasmic reticulum of skeletal and cardiac muscle. The locations where CaM binds on the surface of the...
Radermacher, M, Wagenknecht, T, Grassucci, R, Frank, J, Inui, M, Chadwick, C, ...
The native structure of the calcium release channel (ryanodine receptor) from rabbit skeletal muscle has been analyzed in two dimensions from electron micrographs of frozen hydrated specimens. Within...
Benacquista, B L, Sharma, M R, Samsó, M, Zorzato, F, Treves, S, Wagenknecht, T
We have localized a region contained within the sequence of amino acid residues 4425-4621 on the three-dimensional structure of the skeletal muscle ryanodine receptor (RyR). Mouse monoclonal...
Electron tomography of frozen-hydrated isolated triad junctions.
Wagenknecht, T, Hsieh, C-E, Rath, B K, Fleischer, S, Marko, M
Cryoelectron microscopy and tomography have been applied for the first time to isolated, frozen-hydrated skeletal muscle triad junctions (triads) and terminal cisternae (TC) vesicles derived from...
Three-dimensional reconstruction of the ribosome from Escherichia coli.
Wagenknecht, T, Carazo, J M, Radermacher, M, Frank, J
Three-dimensional image reconstruction has been applied to electron micrographs of noncrystalline, negatively stained ribosomes obtained from Escherichia coli. Several independent reconstructions all...
Carazo, J M, Wagenknecht, T, Frank, J
Electron microscopic techniques are among the most important tools for obtaining structural information of biological specimens. However, the three-dimensional (3D) structural analysis of...