Zobrazeno 1 - 10
of 6 300
pro vyhledávání: '"Velten, A."'
Autor:
Sultan, Talha, Brandt, Eric, Masumnia-Bisheh, Khadijeh, Riccardo, Simone, Polynkin, Pavel, Tosi, Alberto, Velten, Andreas
Active imaging systems sample the Transient Light Transport Matrix (TLTM) for a scene by sequentially illuminating various positions in this scene using a controllable light source, and then measuring the resulting spatiotemporal light transport with
Externí odkaz:
http://arxiv.org/abs/2412.10300
Autor:
Seets, Trevor, Velten, Andreas
Fluorescence guided surgery (FGS) is a promising surgical technique that gives surgeons a unique view of tissue that is used to guide their practice by delineating tissue types and diseased areas. As new fluorescent contrast agents are developed that
Externí odkaz:
http://arxiv.org/abs/2411.09798
Theories based on the Ricci and the trace of the energy-momentum tensor, or the short name Ricci-trace-based (RTB) theories, represent a gravitational approach based on the Ricci scalar $R$, and the trace of the energy-momentum tensor $g^{\mu\nu}T_{\
Externí odkaz:
http://arxiv.org/abs/2409.14443
A Newtonian-like theory inspired by the Brans-Dicke gravitational Lagrangian has been recently proposed in Ref. arXiv:2009.04434(v4). We propose here a new variant of this theory such that the usual Newtonian second law is preserved. The cosmological
Externí odkaz:
http://arxiv.org/abs/2409.01468
We investigate Eigen's model for the evolution of the genetic code of microorganisms using a novel method based on population dynamics analysis. This model, for a given number of offspring, determines long-term survival as a function of the "genetic"
Externí odkaz:
http://arxiv.org/abs/2406.14516
Autor:
Velten, Timo
Let $G$ be a finite, non-abelian group of the form $G = A N$, where $A \leq G$ is abelian, and $N \trianglelefteq G$ is cyclic. We prove that the commuting graph $\Gamma(G)$ of $G$ is either a connected graph of diameter at most four, or the disjoint
Externí odkaz:
http://arxiv.org/abs/2405.18103
Autor:
Correa, Jonathan, Ignatenko, Alexandr, Pennicard, David, Lange, Sabine, Fridman, Sergei, Karl, Sebastian, Lohse, Leon, Senfftleben, Bjoern, Sergeev, Ilya, Velten, Sven, Prajapat, Deepak, Bocklage, Lars, Bromberger, Hubertus, Samartsev, Andrey, Chumakov, Aleksandr, Rueffer, Rudolf, von Zanthier, Joachim, Roehlsberger, Ralf, Graafsma, Heinz
A readout system based on the Timepix4 ASIC, is being developed for photon science. The TEMPUS detector can be operated in two distinct modes: a photon counting mode, which allows for conventional full-frame readout at rates up to 40 kfps; and an eve
Externí odkaz:
http://arxiv.org/abs/2404.07120
We study scalar cosmological perturbations in $f(R, T)$ modified gravity theories being $T$ the trace of the energy-momentum tensor. We provide detailed equations for the matter energy density contrast. We solve then numerically to promote a comparis
Externí odkaz:
http://arxiv.org/abs/2403.07130
Autor:
Lohse, Leon M., Andrejić, Petar, Velten, Sven, Vassholz, Malte, Neuhaus, Charlotte, Negi, Ankita, Panchwanee, Anjali, Sergeev, Ilya, Pálffy, Adriana, Salditt, Tim, Röhlsberger, Ralf
M\"ossbauer nuclei constitute exceptionally clean quantum-optical systems with transitions in the hard x-ray energy range, which, placed in x-ray waveguides, are a uniquely capable platform to study collective radiative effects in waveguide quantum e
Externí odkaz:
http://arxiv.org/abs/2403.06508
The structure of unimodular gravity (UG) is invariant to a subclass of diffeomorphism, the transverse diffeomorphism, due to the unimodular condition ($\sqrt{-g}=\epsilon=cte$). Consequently, there is a freedom to define how the conservation laws of
Externí odkaz:
http://arxiv.org/abs/2402.09645