Search Results - "SOMMER, J. U"
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1
Escape dynamics in an anisotropically driven Brownian magneto-system
Published in Europhysics letters (01-07-2022)“…Abstract Thermally activated escape of a Brownian particle over a potential barrier is well understood within Kramers theory. When subjected to an external…”
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2
The formation and structure of Olympic gels
Published in The Journal of chemical physics (28-12-2015)“…Different methods for creating Olympic gels are analyzed using computer simulations. First ideal reference samples are obtained from freely interpenetrating…”
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3
On the Structure of Star–Polymer Networks
Published in Macromolecules (13-12-2011)“…Using the bond fluctuation model we study polymer networks obtained by endlinking of symmetric 4-arm star polymers. We consider two types of systems. Solutions…”
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4
Short Cyclic Structures in Polymer Model Networks: A Test of Mean Field Approximation by Monte Carlo Simulations
Published in Macromolecules (12-06-2012)“…A mean field rate theory description of the homo- and copolymerization of f-functional molecules is developed, which contains the formation of short cyclic…”
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5
Swelling of Olympic gels
Published in Physical review letters (13-06-2014)“…The swelling equilibrium of Olympic gels, which are composed of entangled cyclic polymers, is studied by Monte Carlo simulations. In contrast to chemically…”
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6
Analysis of entanglement length and segmental order parameter in polymer networks
Published in Physical review letters (30-04-2010)“…The tube model of entangled chains is applied to compute segment fluctuations and segmental orientational order in polymer networks. The entanglement length…”
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7
Patient-reported experience with hypoglossal nerve stimulation in the treatment of obstructive sleep apnea
Published in Sleep & breathing (01-03-2024)“…Background Breathing-synchronized hypoglossal nerve stimulation (HNS) is routinely used as an alternative treatment for patients with obstructive sleep apnea…”
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8
Effect of Topology on the Conformations of Ring Polymers
Published in Macromolecules (25-09-2012)“…The bond fluctuation method is used to simulate both nonconcatenated entangled and interpenetrating melts of ring polymers. We find that the swelling of…”
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9
Conformational switching of modified guest chains in polymer brushes
Published in The Journal of chemical physics (28-07-2013)“…Using a numerical quasi off-lattice self-consistent field method which describes heterogeneous chains of spherical monomers we study the case of a densely…”
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10
Simulations of Neutral and Charged Dendrimers in Solvents of Varying Quality
Published in Macromolecules (23-04-2013)“…We study neutral and charged dendrimers of various generations G, spacer length S, and molecular weight N under systematic variation of the solvent quality…”
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11
Properties of Dendrimers with Flexible Spacer-Chains: A Monte Carlo Study
Published in Macromolecules (14-07-2009)“…We study the properties of starburst dendrimers with flexible spacers in good solvent using Monte Carlo simulations based on the bond fluctuation model by…”
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12
GPU implementations of the bond fluctuation model
Published in Journal of computational physics (01-04-2012)“…We present two parallel implementations of the bond fluctuation model on graphics processors that outperform by a factor of up to 50 times an equivalent…”
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13
Molecular dynamics simulations of electrophoresis of polyelectrolytes in nano confining cylindrical geometries
Published in The Journal of chemical physics (14-03-2013)“…We consider molecular dynamics simulations of the electrophoretic motion of charged polymers in straight cylinders and cylinders with a periodic variation (or…”
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14
Simulations of Terminally Charged Dendrimers with Flexible Spacer Chains and Explicit Counterions
Published in Macromolecules (11-05-2010)“…We study the properties of terminally charged dendrimers under systematic variation of the length of flexible spacers, accompanied by explicit counterions in…”
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15
Simulations of a Grafted Dendritic Polyelectrolyte in Electric Fields
Published in Macromolecules (24-02-2015)“…Using Monte Carlo simulations based on the bond fluctuation model, we study the behavior of a charged dendrimer grafted on one of the electrodes of a plate…”
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16
Simulations of Dendrimers with Flexible Spacer Chains and Explicit Counterions under Low and Neutral pH Conditions
Published in Macromolecules (28-12-2010)“…We study the properties of weak dendritic polyelectrolytes of generation G = 5 with flexible spacers of various lengths and explicit counterions in an athermal…”
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17
Monte Carlo simulations of charged dendrimer-linear polyelectrolyte complexes and explicit counterions
Published in The Journal of chemical physics (28-05-2011)“…We study complexes composed of one dendrimer of generation G = 4 (G4 dendrimer) with N(t) = 32 charged terminal groups and an oppositely charged linear…”
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18
Shear-Induced Ordering in Thin Films of Diblock Copolymer Melts
Published in ACS macro letters (18-11-2014)“…By means of molecular dynamics simulations we investigate the response of thin, symmetric diblock copolymer melts under shear in the limit of strong…”
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19
Polymer-decorated tethered membranes under good- and poor-solvent conditions
Published in The European physical journal. E, Soft matter and biological physics (01-04-2010)“…We study tethered membranes grafted by polymer chains on one side. Mean-field and scaling arguments predicting a spontaneous curvature are compared to the…”
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20
Adsorption of random copolymers from a melt onto a solid surface: Monte Carlo studies
Published in The Journal of chemical physics (14-01-2010)“…We study the behavior of random AB-copolymer melts near a selective surface. We consider the case where the copolymers do not display phase segregation…”
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