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: This work reports a symmetric ‘micro-scallop’, a single-hinge microswimmer that can propel in shear thickening and shear thinning fluids by reciprocal motion at low Re, and indicates that the net propulsion is caused by modulation of the fluid viscosity upon varying the shear rate.
Abstract: Biological microorganisms swim with flagella and cilia that execute nonreciprocal motions for low Reynolds number (Re) propulsion in viscous fluids. This symmetry requirement is a consequence of Purcell's scallop theorem, which complicates the actuation scheme needed by microswimmers. However, most biomedically important fluids are non-Newtonian where the scallop theorem no longer holds. It should therefore be possible to realize a microswimmer that moves with reciprocal periodic body-shape changes in non-Newtonian fluids. Here we report a symmetric 'micro-scallop', a single-hinge microswimmer that can propel in shear thickening and shear thinning (non-Newtonian) fluids by reciprocal motion at low Re. Excellent agreement between our measurements and both numerical and analytical theoretical predictions indicates that the net propulsion is caused by modulation of the fluid viscosity upon varying the shear rate. This reciprocal swimming mechanism opens new possibilities in designing biomedical microdevices that can propel by a simple actuation scheme in non-Newtonian biological fluids.
360 citations
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TL;DR: In this paper, a periodic train of light pulses is used to synchronize the phases of precessing spins in an ensemble of singly charged (In,Ga)As/GaAs quantum dots.
Abstract: The fast dephasing of electron spins in an ensemble of quantum dots is detrimental for applications in quantum information processing. We show here that dephasing can be overcome by using a periodic train of light pulses to synchronize the phases of the precessing spins, and we demonstrate this effect in an ensemble of singly charged (In,Ga)As/GaAs quantum dots. This mode locking leads to constructive interference of contributions to Faraday rotation and presents potential applications based on robust quantum coherence within an ensemble of dots.
358 citations
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TL;DR: In this paper, a search for new phenomena in final states with an energetic jet and large missing transverse momentum is reported, and the results are translated into exclusion limits in models with pair-produced weakly interacting dark-matter candidates, large extra spatial dimensions, and supersymmetric particles in several compressed scenarios.
Abstract: Results of a search for new phenomena in final states with an energetic jet and large missing transverse momentum are reported. The search uses proton-proton collision data corresponding to an integrated luminosity of 36.1 fb−1 at a centre-of-mass energy of 13 TeV collected in 2015 and 2016 with the ATLAS detector at the Large Hadron Collider. Events are required to have at least one jet with a transverse momentum above 250 GeV and no leptons (e or μ). Several signal regions are considered with increasing requirements on the missing transverse momentum above 250 GeV. Good agreement is observed between the number of events in data and Standard Model predictions. The results are translated into exclusion limits in models with pair-produced weakly interacting dark-matter candidates, large extra spatial dimensions, and supersymmetric particles in several compressed scenarios.
358 citations
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TL;DR: In this article, an analysis and simulation of crack propagation behavior considering laser additive manufacturing specific defects, such as porosity and surface roughness, is presented for the mechanical characterization of laser additive manufactured titanium alloy Ti-6Al-4V.
357 citations
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TL;DR: In quantum-confined semiconductor nanostructures, electrons exhibit distinctive behavior compared with that in bulk solids as mentioned in this paper, which enables the design of materials with tunable chemical, physical, electrical, and optical properties.
Abstract: In quantum-confined semiconductor nanostructures, electrons exhibit distinctive behavior compared with that in bulk solids. This enables the design of materials with tunable chemical, physical, electrical, and optical properties. Zero-dimensional semiconductor quantum dots (QDs) offer strong light absorption and bright narrowband emission across the visible and infrared wavelengths and have been engineered to exhibit optical gain and lasing. These properties are of interest for imaging, solar energy harvesting, displays, and communications. Here, we offer an overview of advances in the synthesis and understanding of QD nanomaterials, with a focus on colloidal QDs, and discuss their prospects in technologies such as displays and lighting, lasers, sensing, electronics, solar energy conversion, photocatalysis, and quantum information.
357 citations
Authors
Showing all 13240 results
Name | H-index | Papers | Citations |
---|---|---|---|
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 |