Tootfinder

Deep Reinforcement Learning for Multi-User RF Charging with Non-linear Energy Harvesters
Amirhossein Azarbahram, Onel L. A. L\'opez, Petar Popovski, Shashi Raj Pandey, Matti Latva-aho
https://arxiv.org/abs/2405.04218

Deep Reinforcement Learning for Multi-User RF Charging with Non-linear Energy Harvesters
Radio frequency (RF) wireless power transfer (WPT) is a promising technology for sustainable support of massive Internet of Things (IoT). However, RF-WPT systems are characterized by low efficiency due to channel attenuation, which can be mitigated by precoders that adjust the transmission directivity. This work considers a multi-antenna RF-WPT system with multiple non-linear energy harvesting (EH) nodes with energy demands changing over discrete time slots. This leads to the charging schedulin…

Testing of Pythia modes to study identified particle production in high-multiplicity pp collisions at $\mathbf{\sqrt{s}}$ = 7 TeV
Rabia Bashir, Ramona Shahzadi, M. U. Ashraf
https://arxiv.org/abs/2404.05373

Testing of Pythia modes to study identified particle production in high-multiplicity pp collisions at $\mathbf{\sqrt{s}}$ = 7 TeV
This study presents a comprehensive analysis of particle production in proton-proton ($pp$) collisions at $\sqrt{s}$ = 7 TeV using Pythia~8 event generator. We investigate the transverse momentum $p_T$ spectra of light charged hadrons ($π^\pm$, $K^\pm$ and $p(\bar p)$), their yield ratios ($π^-/π^+$, $K^-/K^+$ and $\bar{p}/p$), and $p_T$-differential ratios ($(K^++K^-)/(π^++π^-)$, $(\overline{p}+p)/(π^++π^-)$) and mean transverse momentum ($\langle p_\mathrm{T} \rangle$). Our analysis em…

Self-assembling of multilayered polymorphs with ion beams
Alexander Azarov, Cristian Radu, Augustinas Galeckas, Ionel Florinel Mercioniu, Adrian Cernescu, Vishnukanthan Venkatachalapathy, Edouard Monakhov, Flyura Djurabekova, Corneliu Ghica, Junlei Zhao, Andrej Kuznetsov
https://arxiv.org/abs/2404.19572

Self-assembling of multilayered polymorphs with ion beams
Polymorphism contributes to the diversity of nature, so that even materials having identical chemical compositions exhibit variations in properties because of different lattice symmetries. Thus, if stacked together into multilayers, polymorphs may work as an alternative approach to the sequential deposition of layers with different chemical compositions. However, selective polymorph crystallization during conventional thin film synthesis is not trivial; e.g. opting for step-like changes of temp…

Effect of external characteristics of a virtual human being during the use of a computer-assisted therapy tool
Navid Ashrafi, Vanessa Neuhaus, Francesco Vona, Nicolina Laura Peperkorn, Youssef Shiban, Jan-Niklas Voigt-Antons
https://arxiv.org/abs/2403.09544

Effect of external characteristics of a virtual human being during the use of a computer-assisted therapy tool
Identification within media, whether with real or fictional characters, significantly impacts users, shaping their behavior and enriching their social and emotional experiences. Immersive media, like video games, utilize virtual entities such as agents, avatars, or NPCs to connect users with virtual worlds, fostering a heightened sense of immersion and identification. However, challenges arise in visually representing these entities, with design decisions crucial for enhancing user interaction.…

New constraints on ultraheavy dark matter from the LZ experiment
J. Aalbers, D. S. Akerib, A. K. Al Musalhi, C. S. Amarasinghe, A. Ames, T. J. Anderson, N. Angelides, H. M. Ara\'ujo, J. E. Armstrong, M. Arthurs, A. Baker, S. Balashov, J. Bang, J. W. Bargemann, A. Baxter, K. Beattie, T. Benson, A. Bhatti, A. Biekert, T. P. Biesiadzinski, H. J. Birch, E. Bishop, G. M. Blockinger, B. Boxer, C. A. J. Brew, P. Br\'as, S. Burdin, M. Buuck, M. C. Carmona-Benitez, M. Carter, A. Chawla,…

New constraints on ultraheavy dark matter from the LZ experiment
Searches for dark matter with liquid xenon time projection chamber experiments have traditionally focused on the region of the parameter space that is characteristic of weakly interacting massive particles, ranging from a few GeV/$c^2$ to a few TeV/$c^2$. Models of dark matter with a mass much heavier than this are well motivated by early production mechanisms different from the standard thermal freeze-out, but they have generally been less explored experimentally. In this work, we present a re…

P\'eclet dependent Interactions of Self-Propelled Droplets
Prateek Dwivedi, Sobiya Ashraf, Pawan Kumar, Dipin Pillai, Rahul Mangal
https://arxiv.org/abs/2404.13740

Péclet dependent Interactions of Self-Propelled Droplets
Interactions among biologically active agents is facilitated by their self-generated chemical and hydrodynamic fields. In order to elucidate the pair-wise interactions between such micro-organisms, we employ active droplets as a model system, capable of self-generating chemical and hydrodynamic fields. We demonstrate that the solute Péclet number ($Pe$), characterizing the relative strength of its convective to diffusive transport, plays a crucial role in determining how the chemical and hydro…

New constraints on ultraheavy dark matter from the LZ experiment
J. Aalbers, D. S. Akerib, A. K. Al Musalhi, C. S. Amarasinghe, A. Ames, T. J. Anderson, N. Angelides, H. M. Ara\'ujo, J. E. Armstrong, M. Arthurs, A. Baker, S. Balashov, J. Bang, J. W. Bargemann, A. Baxter, K. Beattie, T. Benson, A. Bhatti, A. Biekert, T. P. Biesiadzinski, H. J. Birch, E. Bishop, G. M. Blockinger, B. Boxer, C. A. J. Brew, P. Br\'as, S. Burdin, M. Buuck, M. C. Carmona-Benitez, M. Carter, A. Chawla,…

New constraints on ultraheavy dark matter from the LZ experiment
Searches for dark matter with liquid xenon time projection chamber experiments have traditionally focused on the region of the parameter space that is characteristic of weakly interacting massive particles, ranging from a few GeV/$c^2$ to a few TeV/$c^2$. Models of dark matter with a mass much heavier than this are well motivated by early production mechanisms different from the standard thermal freeze-out, but they have generally been less explored experimentally. In this work, we present a re…