Institution
Technical University of Dortmund
Education•Dortmund, Nordrhein-Westfalen, Germany•
About: Technical University of Dortmund is a education organization based out in Dortmund, Nordrhein-Westfalen, Germany. It is known for research contribution in the topics: Context (language use) & Large Hadron Collider. The organization has 13028 authors who have published 27666 publications receiving 615557 citations. The organization is also known as: Dortmund University & University of Dortmund.
Topics: Context (language use), Large Hadron Collider, Computer science, Neutrino, Finite element method
Papers published on a yearly basis
Papers
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TL;DR: In this article, the distribution of the fine-structure splitting and the biexciton binding energy were measured in a series of annealed InAs quantum dots, and the authors found a decrease of the binding energy with increasing annealing temperature, indicating a symmetrizing of the in-plane confinement potential.
Abstract: The distribution of the fine-structure splitting ħδ1 and of the biexciton binding energy ħδB are measured in a series of annealed InAs quantum dots. We find a decrease of ħδ1 from 96μeV to 6μeV with increasing annealing temperature, indicating a symmetrizing of the in-plane confinement potential. The biexciton binding energy shows only a weak dependence on the confinement energy, which we attribute to a compensation between decreasing confinement and decreasing separation of electron and hole.
183 citations
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TL;DR: This work investigated the applicability of the thermodynamic model perturbed-chain statistical associating fluid theory (PC-SAFT) to correlate and to predict the solubility of exemplary five typical drug substances and intermediates in pure solvents and solvent mixtures.
183 citations
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TL;DR: In this article, a neutrino with energy similar to 290 TeV was detected in coincidence with the BL Lac object TXS. 0506+056 during enhanced gamma-ray activity, with chance coincidence being rejected at similar to 3 sigma level.
Abstract: A neutrino with energy similar to 290 TeV, IceCube-170922A, was detected in coincidence with the BL Lac object TXS. 0506+056 during enhanced gamma-ray activity, with chance coincidence being rejected at similar to 3 sigma level. We monitored the object in the very-high-energy (VHE) band with the Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) telescopes for similar to 41 hr from 1.3 to 40.4 days after the neutrino detection. Day-timescale variability is clearly resolved. We interpret the quasi-simultaneous neutrino and broadband electromagnetic observations with a novel one-zone lepto-hadronic model, based on interactions of electrons and protons co-accelerated in the jet with external photons originating from a slow-moving plasma sheath surrounding the faster jet spine. We can reproduce the multiwavelength spectra of TXS 0506+056 with neutrino rate and energy compatible with IceCube-170922A, and with plausible values for the jet power of similar to 10(45) - 4 x 10(46) erg s(-1). The steep spectrum observed by MAGIC is concordant with internal gamma gamma absorption above similar to 100 GeV entailed by photohadronic production of a similar to 290 TeV neutrino, corroborating a genuine connection between the multi-messenger signals. In contrast to previous predictions of predominantly hadronic emission from neutrino sources, the gamma-rays can be mostly ascribed to inverse Compton upscattering of external photons by accelerated electrons. The X-ray and VHE bands provide crucial constraints on the emission from both accelerated electrons and protons. We infer that the maximum energy of protons in the jet comoving frame can be in the range similar to 10(14) - 10(18) eV.
183 citations
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TL;DR: In this article, the authors measured the solubility of dl-methionine in pure water in a temperature range of 293.15−353.15 K by means of on-line attenuated total reflection−Fourier transform infrared (ATR−FTIR) spectroscopy.
Abstract: The solubility of dl-methionine in pure water has been measured in a temperature range of 293.15−353.15 K by means of on-line attenuated total reflection−Fourier transform infrared (ATR−FTIR) spectroscopy. These experimental data, as well as literature data for the solubility of glycine and dl-alanine in aqueous and alcohol solutions, were modeled using the PC−SAFT equation of state. Pure-component parameters for glycine, dl-alanine, and dl-methionine were fitted to the vapor pressures and to the densities of their aqueous solutions. Only one temperature-independent binary parameter is required for each system. The solubility of amino acids in water−alcohol mixtures (ternary systems) was then predicted without fitting any additional parameters. The results of the prediction correspond well to literature data. To retrieve the pH dependency, the solubility of dl-methionine in different HCl and NaOH solutions in the pH range of 1.5−9.5 was determined via gravimetric measurements. Using the knowledge of the a...
183 citations
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TL;DR: In this paper, the dispersive Carleman inequalities are used to prove unique continuation results for partial differential operators with rough poten- tials, such as the wave operator, the Schrodinger operator and the linear KdV.
Abstract: The aim of these notes is to describe some recent re- sults concerning dispersive estimates for principally normal pseu- dodifferential operators. The main motivation for this comes from unique continuation problems. Such estimates can be used to prove L q Carleman inequalities, which in turn yield unique continuation results for various partial differential operators with rough poten- tials. Dispersive estimates are L q estimates for nonelliptic partial differ- ential operators which are a consequence of the decay properties of their fundamental solutions. These decay properties follow from spa- tial spreading of the singularities of the solutions. Since solutions prop- agate in directions conormal to the characteristic set of the operator, this spreading can be related to nonzero curvatures of the characteristic set. Dispersive estimates for constant coefficient operators are closely related to the restriction theorem in harmonic analysis. Various types of dispersive estimates are known to be true for op- erators such as the wave operator, the Schrodinger operator and the linear KdV, see Ginibre-Velo (4), Keel-Tao (11). They have proved to be useful in the study of nonlinear problems, as well as of problems with unbounded potentials. More recently, similar estimates have been obtained for wave op- erators with variable coefficients, beginning with the smooth case in Kapitanskii (10), Mockenhaupt, Seeger and Sogge (14), up to operators with C 2 coefficients in Smith (15) and Tataru (21), (23). Similar results were obtained for the Schrodinger equation in Staffilani-Tataru (19) (C 2 coefficients) and in Burq-Gerard-Tzvetkov (1) (smooth coeffic ients). In the variable coefficient elliptic case one should also mention Sogge's L q
182 citations
Authors
Showing all 13240 results
Name | H-index | Papers | Citations |
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Hermann Kolanoski | 145 | 1279 | 96152 |
Marc Besancon | 143 | 1799 | 106869 |
Kerstin Borras | 133 | 1341 | 92173 |
Emmerich Kneringer | 129 | 1021 | 80898 |
Achim Geiser | 129 | 1331 | 84136 |
Valerio Vercesi | 129 | 937 | 79519 |
Jens Weingarten | 128 | 896 | 74667 |
Giuseppe Mornacchi | 127 | 894 | 75830 |
Kevin Kroeninger | 126 | 836 | 70010 |
Daniel Muenstermann | 126 | 885 | 70855 |
Reiner Klingenberg | 126 | 733 | 70069 |
Claus Gössling | 126 | 775 | 71975 |
Diane Cinca | 126 | 822 | 70126 |
Frank Meier | 124 | 677 | 64889 |
Daniel Dobos | 124 | 679 | 67434 |