cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cosmological Simulations of Early Blackhole Formation: Halo Mergers, Tidal Disruption, and the Conditions for Direct Collapse
Creators: name: Chon, Sunmyon
name: Hirano, Shingo
name: Hosokawa, Takashi
name: Yoshida, Naoki
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Gravitational collapse of a massive primordial gas cloud is thought to be a promising path for the formation of supermassive blackholes in the early universe. We study conditions for the so-called direct collapse (DC) blackhole formation in a fully cosmological context. We combine a semianalytic model of early galaxy formation with halo merger trees constructed from dark matter $N$-body simulations. We locate a total of 68 possible DC sites in a volume of $20\;h^{-1}\;\mathrm{Mpc}$ on a side. We then perform hydrodynamics simulations for 42 selected halos to study in detail the evolution of the massive clouds within them. We find only two successful cases where the gas clouds rapidly collapse to form stars. In the other cases, gravitational collapse is prevented by the tidal force exerted by a nearby massive halo, which otherwise should serve as a radiation source necessary for DC. Ram pressure stripping disturbs the cloud approaching the source. In many cases, a DC halo and its nearby light source halo merge before the onset of cloud collapse. Only when the DC halo is assembled through major mergers, the gas density increases rapidly to trigger gravitational instability. Based on our cosmological simulations, we conclude that the event rate of DC is an order of magnitude smaller than reported in previous studies, although the absolute rate is still poorly constrained. It is necessary to follow the dynamical evolution of a DC cloud and its nearby halo(s) in order to determine the critical radiation flux for DC.
description: 22 pages, 22 figures, accepted for publication in ApJ
title: Social VR Beyond the Corporeal Standard: Reflections on Access for Disabled Persons
Creators: name: Gerling, Kathrin
name: Dickinson, Patrick
name: Spiel, Katta
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Corporeal Standard
subject: Neurodivergence
subject: Social VR

description: Social VR holds the promise of engaging users in meaningful social interaction without leaving one’s physical environment. Particularly for disabled people, this could reduce barriers to social participation in the context of leisure, work, and education. However, the current shape of VR technology and research efforts exploring social VR largely overlook disabled perspectives. In this extended abstract, we outline key research challenges that need to be addressed to ensure that social VR is accessible and engaging for all users by moving beyond idealized and non-disabled human bodies, i.e., the corporeal standard.
title: REPRÉSENTATIONS SOCIALES DE LA POPULATION GÉNÉRALE GRAND NANCÉIENNE SUR LE CONCEPT DE BIEN-ÊTRE ENVIRONNEMENTAL DANS UN CONTEXTE DE CURE THERMALE Acronyme : Thermenvie
title: Social representations of the general population of Grand Nancy on the concept of environmental well-being in a spa context
Creators: name: Batt, Martine
name: Danan, Jane-Laure
name: Copplet, Charlotte
name: Kanny, Gisèle
Publisher: name: Société française de médecine thermale
Year: 2022

description: L’objectif de la recherche Thermenvie est l’évaluation des représentations sociales de la population générale grand-nancéienne sur le concept de bien-être environnemental dans un contexte de création du centre Nancy thermal et de l’ouverture prochaine de cure thermale sur ce territoire. Un questionnaire a été élaboré et diffusé au grand public via les réseaux sociaux. Ont répondu 180 participants, de tous les âges, majoritairement des femmes (83 %). Une analyse de contenu manuelle et automatique des réponses a été réalisée. Elle confirme l’interaction entre cure thermale, santé, bien-être et environnement, ce qui converge vers une représentation holistique de la cure thermale et la considération de la santé un déterminant de l’interaction santé et environnement. Parmi les représentations les plus originales, on observe que pour les moins de 25 ans, la cure thermale est associée à la vieillesse, que l’air occupe une place importante chez les plus de 45 ans et que le jardin est associé au contexte thermal. Ces résultats ouvrent des perspectives visant à renforcer ou modifier les représentations du thermalisme dans la métro- pole du Grand Nancy : communications et attractivité pour les plus jeunes en rajeunissant l’image du thermalisme, réalisations concrètes visant à améliorer la qualité de l’air respiré, aménagement de jardins dans les espaces thermaux.
description: The objective of Thermenvie is the evaluation of the social representations in the general population of Grand Nancy area on the concept of environmental well-being in the context of spa treatment. A questionnaire was developed and distributed to the public via social networks. 180 participants responded, of all ages, mostly women (83 %). Manual and automatic content analysis of responses was performed. As expected, it confirms an essential interaction between spa treatment, health, well-being and the environment, which converges towards a holistic representation of spa treatment. Among the most original representations, we observe that for those under 25, the spa treatment is associated with old age, that the air occupies an important place among those over 45, and that the garden is associated with the thermal context. These results open up prospects aimed at strengthening or modifying the representations of hydrothe- rapy in this territory : communications and attractiveness for the youngest in the direction of a renovated hydrotherapy, concrete achievements to improve the quality of the air breathed, landscaping of gardens in thermal areas.
title: Codesign ending up with n=1
Creators: name: Mucha, Henrik
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Participatory Design
subject: Codesign
subject: health

description: is not a classic paper. It is a thought piece. In the tradition of the workshop it is a stream of consciousness on a topic relevant to the workshop. It has no references. It is utterly opinion from personal experience. It is meant to start a conversation. A conversation on incentives for participation when designing in knowledge-intensive domains such as healthcare.
Investigation of the Potential of Boron Doped Oxide Deposited by PECVD - Application to Advanced Solar Cells Fabrication Processes
Creators: name: Cabal, R.
name: Jourdan, J.
name: Grange, B.
name: Veschetti, Y.
name: Heslinga, D.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1605-1608
description: The purpose of this work is to study the potential of Boron Silicate Glass (BSG deposited by PECVD)
as a doping source for its application to solar cells processes (emitter or Back Surface Field (BSF) formation). Boron
doped regions were formed by diffusing Boron Silicate Glass (BSG) layers deposited by PECVD. The boron
concentration in the BSG layer was carefully controlled in order to reach an accurate doping profile which was
determined by Secondary Ion Mass Spectroscopy (SIMS) measurements. For similar sheet resistance values,
excellent doping homogeneity and reduced diffusion temperature requirement were observed for the BSG technique.
Co-diffusion involving BSG and POCl3 as doping sources was developed. Passivation schemes of boron doped
regions have been tested on p+/n/p+ samples in order to determine the implied open-circuit voltage of the samples.
The passivating coatings were SiN layers and SiO2\SiNx stacks combining chemical and PECVD deposition steps.
BBr3 diffused wafers were also processed as a reference. P-type PERT (Passivated Emitter Rear Totally diffused)
solar cells were fabricated. The rear side passivation was granted by combined effects of boron BSF obtained from
BSG annealing, and passivating layer.
Optically tunable spin transport on the surface of a topological insulator
Creators: name: Yudin, D.
name: Kibis, O. V.
name: Shelykh, I. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The emerging field of spinoptronics has a potential to supersede the functionality of modern electronics, while a proper description of strong light-matter coupling pose the most intriguing questions from both fundamental scientific and technological perspectives. In this paper we address a highly relevant issue for such a development. We theoretically explore spin dynamics on the surface of a 3D topological insulator (TI) irradiated with an off-resonant high-frequency electromagnetic wave. The strong coupling between electrons and the electromagnetic wave drastically modifies the spin properties of TI. The effects of irradiation are shown to result in anisotropy of electron energy spectrum near the Dirac point and suppression of spin current and are investigated in detail in this work.
An asymptotic multipartite Kühn-Osthus theorem
Creators: name: Martin, Ryan R.
name: Mycroft, Richard
name: Skokan, Jozef
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C35, 05C70

description: In this paper we prove an asymptotic multipartite version of a well-known theorem of Kühn and Osthus by establishing, for any graph $H$ with chromatic number $r$, the asymptotic multipartite minimum degree threshold which ensures that a large $r$-partite graph $G$ admits a perfect $H$-tiling. We also give the threshold for an $H$-tiling covering all but a linear number of vertices of $G$, in a multipartite analogue of results of Komlós and of Shokoufandeh and Zhao.
description: 16 pages
Influence of Silicon Nanocrystals on Properties of Si Based Heterojunction Solar Cells
Creators: name: Chirvony, V.
name: Ulyashin, A.
name: Suárez, I.
name: Garcia-Calzada, R.
name: Abderrafi, K.
name: Martínez-Pastor, J.P.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
New Materials, Cells and Modules

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 730-732
description: Results of an attempt to find a technological solution for fabrication of high-efficiency heterojunction (HJ)
solar cells on p-type Si substrates are presented. An analysis of HJ solar cells fabricated on p-type Czhochralski-grown
(Cz) silicon, with or without isotropic acid texturization, in combination with a thin intermediate porous layer is
performed. It is shown that the HJ cells containing porous Si layer exhibit higher efficiencies as compared to those
produced without a porous layer. An idea is suggested that this efficiency growth may be a result of Si nanocrystals
(NCs) presence in a porous layer, the presence is confirmed by the photoluminescence spectra and decay kinetics
measurements. Possible mechanisms of Si NCs role in the efficiency increase are discussed.
Degradation of Si–SiO2 Interfaces During Rapid Thermal Annealing
Creators: name: Kho, T.C.
name: Black, L.E.
name: McIntosh, K.R.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1586-1590
description: This work investigates the degradation of oxide-passivated silicon during a rapid thermal anneal
(RTA). We find that at 500 and 600 °C, but not 400 °C, the oxide passivation is degraded when exposed to the
illumination of the heating lamps, and that the degradation increases as the sample temperature increases. We also
find that the oxide passivation does not degrade when shielded from the illumination for temperatures of 400, 500
and 600 °C. The results suggest that the illumination-induced degradation is due to the injection of electrons from
the silicon into the oxide by one or both of the following mechanisms: (i) photoinjection from the silicon’s valence
band during the RTA’s ramp-up, when the filaments of the heating lamps are > 2100 K and emit a large number of
photons with an energy > 4.2 eV; and (ii) thermal-assisted photoinjection from the silicon’s conduction band during
the RTA’s steady-state period, which requires the sample to be sufficiently hot that the conduction band is highly
populated with electrons, and the filaments to be sufficiently hot that they emit a large number of energetic photons.
Theoretical Prediction of Atomic Vibration Modes in Core-Shell Quantum Dot Superlattices and Nanoporous Systems for the Hot Carrier Solar Cell
Creators: name: Patterson, R.
name: Puthen-Veetil, B.
name: Kirkengen, M.
name: König, D.
name: Green, M.A.
name: Conibeer, G.J.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
New Materials, Cells and Modules

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 733-736
description: Phonon dispersion relations and in core-shell quantum dot superlattices and periodic arrays of gasfilled
nanopores have been computed numerically in the harmonic approximation. Core-shell quantum dot
superlattices show potential to inhibit first order phonon decay. Outcomes for nanoporous systems depend
strongly on surface and gas-phase interactions. Surface fields in nanoporous systems have been calculated by a
diffusive quantum Monte Carlo method using aspects of density functional theory. Results from these
computations are presented here and implications are discussed. A light absorbing material with low probability
for phonon decay is critical to achieving the high efficiencies expected from the hot carrier solar cell.
On cap sets and the group-theoretic approach to matrix multiplication
Creators: name: Blasiak, Jonah
name: Church, Thomas
name: Cohn, Henry
name: Grochow, Joshua A.
name: Naslund, Eric
name: Sawin, William F.
name: Umans, Chris
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: Data Structures and Algorithms (cs.DS)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In 2003, Cohn and Umans described a framework for proving upper bounds on the exponent $ω$ of matrix multiplication by reducing matrix multiplication to group algebra multiplication, and in 2005 Cohn, Kleinberg, Szegedy, and Umans proposed specific conjectures for how to obtain $ω=2$. In this paper we rule out obtaining $ω=2$ in this framework from abelian groups of bounded exponent. To do this we bound the size of tricolored sum-free sets in such groups, extending the breakthrough results of Croot, Lev, Pach, Ellenberg, and Gijswijt on cap sets. As a byproduct of our proof, we show that a variant of tensor rank due to Tao gives a quantitative understanding of the notion of unstable tensor from geometric invariant theory.
description: 27 pages
Estimation of PV Array Power Losses Due to Partial Shading
Creators: name: Paraskevadaki, E.
name: Papathanassiou, S.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Components for PV Systems
PV System Engineering and Standards, Socio-economic Aspects, and Sustainability

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 4560-4564
description: One of the conditions that can be detrimental for PV system performance is partial shading. Several
factors affect PV module and array performance under partial shading conditions. Main PV module electrical
characteristics, expressed by equivalent electrical circuit models, have a significant impact on I-V curve formation.
Low shunt resistance values can be detrimental to the performance of shaded modules and may cause irreversible cell
damage if the module is not electrically protected. In this paper, the effect of various partial shading patterns on a
study case PV array of 1 kW is examined. The analysis is performed for several shading levels. In addition, the effect
of low shunt resistance combined with partial shading conditions is evaluated via simulation of shading scenarios on
modules with various Rsh values.
$μ$-Distortions or Running: A Guaranteed Discovery from CMB Spectrometry
Creators: name: Cabass, Giovanni
name: Melchiorri, Alessandro
name: Pajer, Enrico
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the implications of a PIXIE-like experiment, which would measure $μ$-type spectral distortions of the CMB at a level of $σ_μ=(1/n)\times 10^{-8}$, with $n\geq1$ representing an improved sensitivity (e.g. $n=10$ corresponds to PRISM). Using Planck data and considering the six-parameter $Λ$CDM model, we compute the posterior for $μ_8\equivμ\times 10^{8}$ and find $μ_8=1.57^{+0.11}_{-0.13}$ ($68\%\,\mathrm{CL}$). This becomes $μ_{8} = 1.28^{+0.30}_{-0.52}$ ($68\%\,\mathrm{CL}$) when the running $α_\mathrm{s}$ of the spectral index is included. We point out that a sensitivity of about $3\times$ PIXIE implies a guaranteed discovery: $μ$-distortion is detected or $α_\mathrm{s}\geq 0$ is excluded (both at $95\%\,\mathrm{CL}$ or higher). This threshold sensitivity sets a clear benchmark for CMB spectrometry. For a combined analysis of PIXIE and current Planck data, we discuss the improvement on measurements of the tilt $n_\mathrm{s}$ and the running $α_\mathrm{s}$ and the dependence on the choice of the pivot. A fiducial running of $α_\mathrm{s}=-0.01$ (close to the Planck best-fit) leads to a detection of negative running at $2σ$ for $5\times$ PIXIE. A fiducial running of $α_\mathrm{s}=-0.02$, still compatible with Planck, requires $3\times$ PIXIE to rule out $α_\mathrm{s} = 0$ (at $95\%\,\mathrm{CL}$). We propose a convenient and compact visualization of the improving constraints on the tilt, running and tensor-to-scalar ratio.
description: 10+2 pages, 8 figures, 2 tables. Matches published version
title: Collaborative mechanics in the multi-sensory VR experience Klima-ACT!
Creators: name: Helfrich, Maik
name: Fendt, Maren
name: Scholz, Barbro
name: Fox, Tobias
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Multi-user mechanics
subject: Collaborative software
subject: VR environment
subject: multi-sensory experience
subject: Gamification

description: In this submission paper for the MuC – Mensch und Computer Conference 2022 we discuss multi-user and collaborative design methods and mechanics for our work in progress multi-sensory VR prototype. Users experience a collaborative social and gamified VR environment, which could evoke positive in-game actions and user discussion against climate change to be transformed into real life actions. We discuss how collaborative mechanics in such an environment could contribute the overall project goals listing risks and opportunities.
The Study on Prediction about the Optimal Installation Angle of Photovoltaic System
Creators: name: Kim, J.-H.
name: Yu, G.-J.
name: So, J.-H.
name: Cha, H.-J.
name: Yu, B.-G.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Components for PV Systems
PV System Engineering and Standards, Socio-economic Aspects, and Sustainability

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 4575-4578
description: In this paper, Korea's information about installing optimal photovoltaic systems. Photovoltaic system
performance is strongly affected by the angles and directions of installation of incidents rays and the average solar
radiation on inclined surfaces should be considered as well as that on plane surfaces. The program for predicting
solar radiation on inclined surfaces was developed. In this program was based on calculation of solar radiation on
inclined surfaces. Average solar radiation data used in the formula for the Korea Meteorological data was used.
Developed programs and commercial programs were compared. The results obtained in this research could be used in
installing optimal photovoltaic systems in Korea.
The weak Pleijel theorem with geometric control
Creators: name: Bérard, Pierre
name: Helffer, Bernard
Publisher: name: arXiv
Year: 2015
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Let $Ω\subset \mathbb R^d\,, d\geq 2$, be a bounded open set, and denote by $λ\_j(Ω), j\geq 1$, the eigenvalues of the Dirichlet Laplacian arranged in nondecreasing order, with multiplicities. The weak form of Pleijel's theorem states that the number of eigenvalues $λ\_j(Ω)$, for which there exists an associated eigenfunction with precisely $j$ nodal domains (Courant-sharp eigenvalues), is finite. The purpose of this note is to determine an upper bound for Courant-sharp eigenvalues, expressed in terms of simple geometric invariants of $Ω$. We will see that this is connected with one of the favorite problems considered by Y. Safarov.
description: Revised Oct. 12, 2016. To appear in Journal of Spectral Theory 6 (2016)
In-Situ Series Connection for Thin Film Photovoltaic Modules
Creators: name: Merz, R.
name: Adachi, M.M.
name: Schubert, M.B.
name: Werner, J.H.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Thin Films
Amorphous and Microcrystalline Silicon

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 2411-2413
description: The in-situ series connection of 10 amorphous silicon based solar cells on a flexible polymer foil yields a
photovoltaic module with an efficiency h = 3 %. Masking wires pattern all constituting layers of the thin film solar cells
during their subsequent deposition steps. Appropriate wire shifts provide electrical isolation and monolithic series
connection of the single solar cells into a photovoltaic module with an open circuit voltage Voc = 9 V. The wire set
initially patterns the back contact, a first wire shift masks the back contact during the cell deposition and a second one
opens the back contact to provide series connection during deposition of the transparent front contact. The present work
discusses three different configurations of the in-situ series connection resulting in interconnection losses F < 15 %.
Keywords: Amorphous Silicon, Flexible Substrate, Module Manufacturing
title: PassGlobe: Ein Shoulder-Surfing resistentes Authentifizierungsverfahren für Virtual Reality Head-Mounted Displays
Creators: name: Länge, Tobias
name: Matheis, Philipp
name: Düzgün, Reyhan
name: Mayer, Peter
name: Volkamer, Melanie
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Authentifizierung
subject: Virtual Reality
subject: Virtual Reality Head-Mounted Displays
subject: Shoulder-Surfing

description: Mit Virtual Reality (VR) kann in virtuelle Welten eingetaucht und mit einer immersiven 3-D Umgebung interagiert werden. Das virtuelle Erlebnis wird dabei durch Head-Mounted Displays (HMDs) realisiert. Der zunehmende Einsatz von VR durch Unternehmen und Privatpersonen in unterschiedlichen Bereichen setzt sichere und nutzerfreundliche Authentifizierungsverfahren voraus. Dabei ist die Gefahr von Shoulder-Surfing Angriffen während der Authentifizierung besonders groß, da man während des VR-Erlebnisses von der realen Umgebung komplett isoliert ist. In dieser Arbeit wird existierende Literatur zu VR-Authentifizierung anhand vorher definierter Anforderungen evaluiert und das graphische Authentifizierungsverfahren PassGlobe vorgeschlagen, welches resistent gegenüber Shoulder-Surfing Angriffen ist.
Thermal Stability of PECVD a-Si1-xCx Layers for Crystalline Silicon Solar Cell Passivation
Creators: name: Riegel, S.
name: Raabe, B.
name: Stewart, M.P.
name: Mungekar, H.
name: Borden, P.
name: Terheiden, B
name: Hahn, G.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1591-1595
description: We investigate the thermal stability of the surface passivation of PECVD a-Si1-xCx layers on
symmetrical lifetime samples. To study the influence of thermal treatment on the passivation quality, lifetime
measurements on symmetrical samples using the quasi transient technique and the quasi steady state technique are
performed. The samples are exposed to temperatures up to 600°C. The annealing steps of ten minutes are carried out
in H-plasma and N2 ambient and annealing is done cumulatively. After each temperature step effective lifetime and
FTIR measurements are performed. Maximum effective lifetimes of 1.2 ms and 1.7 ms are obtained after annealing
at 550°C in hydrogen atmosphere generated by a remote H-plasma and N2 ambient, respectively. In the FTIR spectra
a reduction of the SiH peak intensity at 2060 cm-1 is observed. The intensity of the other SiH peaks does not change
significantly during annealing.
Computational aspects of rational residuosity
Creators: name: Hittmeir, Markus
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11A15 (Primary), 11A51 (Secondary)

description: In this paper, we consider an extension of Jacobi's symbol, the so called rational $2^k$-th power residue symbol. In Section 3, we prove a novel generalization of Zolotarev's lemma. In Sections 4, 5 and 6, we show that several hard computational problems are polynomial-time reducible to computing these residue symbols, such as getting nontrivial information about factors of semiprime numbers. We also derive criteria concerning the Quadratic Residuosity Problem.
description: 16 pages
Philemon brassi Rand 1940
Creators: name: , Mary
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Meliphagidae
Philemon

description: Philemon brassi Rand Philemon brassi Rand, 1940: 13 (Bernhard Camp, Idenburg River, Altitude 50 meters, Netherland [sic] New Guinea). Now Philemon brassi Rand, 1940. See Salomonsen, 1967: 404, and Higgins et al., 2008: 684. HOLOTYPE: AMNH 305643, adult male, collected at Bernhard Camp, 50 m, ca. 03.30S, 139.15E (Archbold et al., 1942, map 1), Taritatu (5 Idenburg) River, Papua Province, Indonesia, on 29 April 1939, by Richard Archbold, W.B. Richardson, and Austin L. Rand on the 1938–1939 Archbold Expedition (no. 1144). COMMENTS: Rand cited the AMNH number of the holotype in the original description and said that this form was known only from the type locality. In his report on the birds collected on the 1938–1939 expedition, Rand (1942b: 510–511) listed eight adult males, one immature male, 11 adult females, two immature females, and one sex?, collected between 22 March and 29 April 1939. There are 22 paratypes: AMNH 343083–343104. Of these, AMNH 343085, male, and 343097, female, were exchanged to FMNH; AMNH 343091, female, and 343104, sex?, were exchanged to MZB; and AMNH 343088, male, was exchanged to BMNH.
description: Published as part of Mary, 2011, Type Specimens Of Birds In The American Museum Of Natural History Part 9. Passeriformes: Zosteropidae And Meliphagidae, pp. 1-193 in Bulletin of the American Museum of Natural History 2011 (348) on page 121
description: {"references": ["Salomonsen, F. 1967. Family Meliphagidae. In R. A. Paynter, Jr (editor), Check-list of birds of the world, vol. 12: 338 - 450. Cambridge, MA: Museum of Comparative Zoology, ix + 495 pp.", "Higgins, P. J., L. Christidis, and H. A. Ford. 2008. Meliphagidae (honeyeaters). In J. del Hoyo, A. Elliott, and D. Christie (editors), Handbook of birds of the world, vol. 13, Penduline-tits to shrikes: 498 - 691. Barcelona: Lynx Edicions, 879 pp., 60 pls., 536 photographs.", "Archbold, R., A. L. Rand, and L. J. Brass. 1942. Results of the Archbold Expeditions. No. 41. Summary of the 1938 - 1939 New Guinea Expedition. Bulletin of the American Museum of Natural History 79 (3): 199 - 288, 35 pls., 3 maps.", "Rand, A. L. 1942 b. Results of the Archbold Expeditions. No. 43. Birds of the 1938 - 1939 New Guinea expedition. Bulletin of the American Museum of Natural History 79 (7): 425 - 516."]}
title: Gemeinsam an einem Strang - UCD-Methoden-Mix im BEMpsy Projekt
Creators: name: Siegeris, Juliane
name: Leissler, Brit
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Methoden-Mix
subject: User Centred Design (UCD)
subject: Berufliches Eingliederungsmanagement (BEM)
subject: Multidisziplinarität
subject: heterogene Nutzer-Gruppe
subject: divergente Zielsetzung

description: Das Projekt BEMpsy, vgl. [1] soll den Wiedereinstieg ins Arbeitsleben von Beschäftigten mit psychischen Einschränkungen (z.B. Depression, Burnout, LongCovid) digital unterstützen. Dafür soll bis Ende 2023 eine Plattform/respektive eine Menge von digitalen Werkzeugen entwickelt werden, die sich sowohl an Betroffene als auch die Unternehmen und Netzwerkpartner:innen richtet.
Comparison of the Passivation Quality of Boron and Aluminum BSF for Wafers of Varying Thickness
Creators: name: Riegel, S.
name: Gloger, S.
name: Raabe, B.
name: Hahn, G.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1596-1599
description: The aim of the work is the comparison of large area Cz-Si solar cells with boron back surface field (B-BSF) to
those with full area aluminum (Al) BSF. The investigations are carried out with respect to the influence of the wafer
thickness on the cell performance. Boron doped Cz-Si wafers of varying thickness (115-240 μm) are used as bulk material.
The B-BSF is formed by BBr3-diffusion. Metallization is applied via screen printing a grid on the front and rear side. Full
area aluminum BSF solar cells are used as reference. The solar cells show high open-circuit voltages (VOC) up to 635.4 mV
and short-circuit current densities (JSC) up to 36.5 mA/cm2. Neither VOC nor JSC decrease with decreasing wafer thickness.
The full area Al-BSF reference solar cells show decreasing fill factors and therefore reduced cell efficiencies with decreasing
wafer thickness. The cells with B-BSF reveal internal quantum efficiencies (IQEs) of 60% at 1100 nm. Going to thinner
wafers, the IQE is not reduced in the long wavelength regime. The effective back surface recombination velocities (SRVs)
extracted from a physical model fitted to spectral response measurements are in the range of 80-200 cm/s for the boron BSF
cells. Effective back SRVs of the aluminum BSF cells are determined to 260-700 cm/s.
title: UCAI 2022: Workshop on User-Centered Artificial Intelligence
Creators: name: Buschek, Daniel
name: Hauptmann, Hanna
name: Heuer, Hendrik
name: Loepp, Benedikt
name: Riener, Andreas
name: Yigitbas, Enes
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Artificial intelligence
subject: Human-computer interaction
subject: Human-centered AI

description: The proliferation of AI-based techniques poses a range of new challenges for the design and engineering of intelligent and adaptive systems since they tend to act as black boxes and do not offer the user sufficient transparency, control, and interaction opportunities, which are considered major goals of user-centered design in the HCI field. This workshop aims at sharing and discussing recent developments at the intersection of HCI and AI, and at exploring novel methodological, technical, and interaction approaches. Researchers and practitioners with diverse disciplinary backgrounds can and should contribute to advancing the research agenda in this emerging field of human-centered artificial intelligence.
Eulerian Methods for Visualizing Continuous Dynamical Systems using Lyapunov Exponents
Creators: name: You, Guoqiao
name: Wong, Tony
name: Leung, Shingyu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We propose a new Eulerian numerical approach for constructing the forward flow maps in continuous dynamical systems. The new algorithm improves the original formulation developed in [23, 24] so that the associated partial differential equations (PDEs) are solved forward in time and, therefore, the forward flow map can now be determined on the fly. Due to the simplicity in the implementations, we are now able to efficiently compute the unstable coherent structures in the flow based on quantities like the finite time Lyapunov exponent (FTLE), the finite size Lyapunov exponent (FSLE) and also a related infinitesimal size Lyapunov exponent (ISLE). When applied to the ISLE computations, the Eulerian method is in particularly computationally efficient. For each separation factor r in the definition of the ISLE, typical Lagrangian methods require to shoot and monitor an individual set of ray trajectories. If the scale factor in the definition is changed, these methods have to restart the whole computations all over again. The proposed Eulerian method, however, requires to extract only an isosurface of a volumetric data for an individual value of r which can be easily done using any well-developed efficient interpolation method or simply an isosurface extraction algorithm. Moreover, we provide a theoretical link between the FTLE and the ISLE fields which explains the similarity in these solutions observed in various applications.
InP-Lattice Matched Quantum Well Solar Cells for Remote and Portable Power
Creators: name: Gonzalez, M.
name: Adams, J.G.J.
name: Vurgaftman, I.
name: Meyer, J.R.
name: Abell, J.
name: Tischler, J.G.
name: Cress, C.D.
name: Browne, B.C.
name: Jenkins, P.P.
name: Ekins-Daukes, N.J.
name: Walters, R.J.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
New Materials, Cells and Modules

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 725-729
description: In this work, we report the theoretical design and modeling of high efficiency, multijunction (MJ) solar cells lattice
matched to InP. A wide range of direct bandgaps is available in this material system to enable MJ devices with high
efficiency and robust performance in diverse operating environments. We provide realistic estimates of the expected
conversion efficiency by quantifying the effect of non-radiative recombination via the radiative efficiency at a fixed
current density. The effect of metamorphic junctions needed to achieve gaps <1.4 eV on GaAs in inverted
metamorphic technology is then represented by the reduced radiative efficiency derived from state-of-the-art
experimental results. We show that high efficiencies obtained by the current GaAs-based MJ technology can be
accomplished without any relaxed layers on InP and derive the optimum energy gaps, the alloys, and quantum-well
structures necessary to realize them. Conversion efficiencies of 37.2%, 38.9% and 52% are projected for InP-based
MJ devices under AM0, AM1.5G and AM1.5D low AOD (500X) illumination. The corresponding values simulated
for metamorphic cells with a single relaxed junction are 33.1%, 38.3%, and 51%.
title: Virtuelle partizipative Stadtplanung? Mehr Bürger*innenbeteiligung in Planungsprozessen durch AR/VR-Technologien – eine empirische Exploration
Creators: name: Stepczynski, Jan
name: Haase, Laura
name: Holtmann, Christoph
name: Wiesner, Heike
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: -

description: In dem vom Bundesministerium für Bildung und Forschung geförderten Projekt INSPIRER verfolgen verschiedene Partner aus Wissenschaft, Wirtschaft und kommunaler Verwaltung das Ziel, bürgerliche Partizipation in der Stadtentwicklung mithilfe von immersiven Virtual- und Augmented-Reality (AR/VR) Apps neu zu denken. Bürger*innenbeteiligung in Stadtplanungsprozessen gewinnt durch den stärkeren Wunsch nach strukturellen Veränderungen an Bedeutung.
Ferromagnetism in orthorhombic RAgAl3 (R = Ce and Pr) compounds
Creators: name: Nallamuthu, S.
name: Dzubinska, Andrea
name: Reiffers, Marian
name: Fernandez, Jesus Rodriguez
name: Nagalakshmi, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a detailed study on magnetic, thermodynamic and transport properties of polycrystalline RAgAl3(R = Ce and Pr) compounds. Both compounds crystallize in orthorhombic structure, which is distorted from the tetragonal BaAl4 structure with the space group Cmcm. Heat capacity measurement indicates the bulk magnetic ordering of the compounds. CeAgAl3 and PrAgAl3 order ferromagnetically at TC = 3.8 K and 5.8 K, respectively as it was confirmed from magnetic measurements. CeAgAl3 exhibits heavy Fermion behaviour. The Schottky behaviour in heat capacity data was observed in both compounds. The crystalline electric field (CEF) analysis of the magnetic parts of heat capacity of CeAgAl3 and PrAgAl3 yielded to a CEF level scheme with three doublets and nine singlets and with an overall splitting of 51 K and 180 K, respectively. Fit yielded a magnetic doublet state for CeAgAl3, whereas for PrAgAl3 a pseudo-doublet ground-state with an energy difference of 15 K has been obtained. The resistivity measurements display a low temperature drop at the magnetic ordering temperature of the compounds. Negative magnetoresistance (MR) due to the ferromagnetic ordering has been observed for both Ce and Pr compounds.
High Performance LPCVD-ZNO TCO Used in P-I-N Amorphous Silicon & Micromorph® Tandem Devices Prepared in Industrial Kai™-M R&D Reactor
Creators: name: Benagli, S.
name: Hötzel, J.
name: Borrello, D.
name: Spitznagel, J.
name: Kroll, U.
name: Meier, J.
name: Vallat-Sauvain, E.
name: Bailat, J.
name: Castens, L.
name: Madliger, P.-A.
name: Dehbozorgi, B.
name: Monteduro, G.
name: Marmelo, M.
name: Djeridane, Y.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Thin Films
Amorphous and Microcrystalline Silicon

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 2414-2418
description: For thin film solar cell devices light-trapping is a key feature in order to increase the cell efficiency
and to significantly decrease the costs of photovoltaics. Therefore properties of the front TCO are crucial to achieve
these goals. In a PECVD KAITM-M R&D reactor the potential of a high performance laboratory TCO (Asahi-U) and
the in-house fabricated LPCVD-ZnO (now available on an industrial scale) was studied. Single-junction a-Si:H cells
(1 cm2) properties as a function of the i-layer thickness were investigated in details, for both TCOs. Maximal stable
efficiency of 8.6% was obtained on Asahi-U. In particular, the difference between the two studied substrate is in the
device Jsc-value, and this observation is in good agreement with the measured optical parameters of the TCOs. In
further process development investigations the stable efficiency on LPCVD-ZnO could be improved to the
remarkable value of 9.1%. With the high performance a-Si:H processes on LPCVD-ZnO, several mini-modules
(10x10 cm2) were fabricated and light-soaked. ESTI laboratories of JRC in Ispra certified an aperture efficiency of
8.32% on the best LPCVD-ZnO mini-module. On the basis of the acquired knowledge on a-Si:H single-junction
devices, Micromorph® tandem cells and mini-modules were realized. Cells show high initial (>11.8%) efficiency,
and a mini-module with stabilized efficiencies close to 10% was obtained.
Efficiency at maximum power of thermochemical engines with near-independent particles
Creators: name: Luo, Xiaoguang
name: Liu, Nian
name: Qiu, Teng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Two-reservoir thermochemical engines are established in by using near-independent particles (including Maxwell-Boltzmann, Fermi-Dirac, and Bose-Einstein particles) as the working substance. Particle and heat fluxes can be formed based on the temperature and chemical potential gradients between two different reservoirs. A rectangular-type energy filter with width $Γ$ is introduced for each engine to weaken the coupling between the particle and heat fluxes. The efficiency at maximum power of each particle system decreases monotonously from an upper bound $η^+$ to a lower bound $η^-$ when $Γ$ increases from 0 to $\infty$. It is found that the $η^+$ values for all three systems are bounded by $η_{\mathrm{C}}/2 \leq η^+ \leq η_{\mathrm{C}}/(2-η_{\mathrm{C}})$ due to strong coupling, where $η_{\mathrm{C}}$ is the Carnot efficiency. For the Bose-Einstein system, it is found that the upper bound is approximated by the Curzon-Ahlborn efficiency: $η_{\mathrm{CA}}=1-\sqrt{1-η_{\mathrm{C}}}$. When $Γ\rightarrow\infty$, the intrinsic maximum powers are proportional to the square of the temperature difference of two reservoirs for all three systems, and the corresponding lower bounds of efficiency at maximum power can be simplified in the same form of $η^{-}=η_{\mathrm{C}}/[1+a_0(2-η_{\mathrm{C}})]$.
description: 12 pages, 4 figures
title: n Extension to the Keystroke-Level Model for Extended Reality Interactions
Creators: name: Guerra, Enrico
name: Kurz, Benedikt
name: Bräucker, Jonas
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: eXtended Reality
subject: Virtual Reality
subject: Augmented Reality
subject: Predictive Performance Model
subject: Human-Computer Interaction

description: Nowadays, Augmented Reality (AR) and Virtual Reality (VR) are acquiring increasing importance. In light of the fact that this is true not only for gaming or entertainment, but also for business and scientific scenarios, such immersive technologies may become as immensely important to us as Web 2.0 did over a decade ago. For such paradigms with rising significance over time, well de-fined guidelines, models, or even standards can be advantageous for enhancing usability. In the 1980s, the Keystroke-Level Model introduced a method with this objective in mind. Also providing developers with the means to efficiently evaluate and enhance the usability of their application in terms of time and effort. In this paper, we present a fist step toward such a model for immersive ap-plications by extending the Keystroke-Level Model. We determine new operators, specific to AR and VR, and after that, providing unit times for each of the new operators by measuring the times it takes to carry out a specific operation as part of a user study.
Beyond primitivity for one-dimensional substitution subshifts and tiling spaces
Creators: name: Maloney, Gregory R.
name: Rust, Dan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 37B10, 55N05, 54H20, 37B50, 52C23

description: We study the topology and dynamics of subshifts and tiling spaces associated to non-primitive substitutions in one dimension. We identify a property of a substitution, which we call tameness, in the presence of which most of the possible pathological behaviours of non-minimal substitutions cannot occur. We find a characterization of tameness, and use this to prove a slightly stronger version of a result of Durand, which says that the subshift of a minimal substitution is topologically conjugate to the subshift of a primitive substitution. We then extend to the non-minimal setting a result obtained by Anderson and Putnam for primitive substitutions, which says that a substitution tiling space is homeomorphic to an inverse limit of a certain finite graphx under a self-map induced by the substitution. We use this result to explore the structure of the lattice of closed invariant subspaces and quotients of a substitution tiling space, for which we compute cohomological invariants that are stronger that the Čech cohomology of the tiling space alone.
description: Minor tweaks reflecting referee comments. To appear in Ergodic Theory and Dynamical Systems
On Free Field Realizations of $W(2,2)$-Modules
Creators: name: Adamovic, Drazen
name: Radobolja, Gordan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B69, 17B67, 17B68, 81R10

description: The aim of the paper is to study modules for the twisted Heisenberg-Virasoro algebra $\mathcal H$ at level zero as modules for the $W(2,2)$-algebra by using construction from [J. Pure Appl. Algebra 219 (2015), 4322-4342, arXiv:1405.1707]. We prove that the irreducible highest weight ${\mathcal H}$-module is irreducible as $W(2,2)$-module if and only if it has a typical highest weight. Finally, we construct a screening operator acting on the Heisenberg-Virasoro vertex algebra whose kernel is exactly $W(2,2)$ vertex algebra.
description: several presentational changes made and misprints corrected
Characterization of p-Type Zn1-xCuxO Thin Films for Intermediate-Band Solar Cells
Creators: name: Toyama, T.
name: Shoji, T.
name: Seo, Y.
name: Okamoto, H.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
New Materials, Cells and Modules

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 570-574
description: Zinc copper oxide (Zn1–xCuxO, 0.02 ≤ x ≤ 0.75) thin films have been studied aiming for applying to an
intermediate-band solar cell with an emphasis on their properties arising from heavy incorporations of CuZn
+
acceptors: (i) the formation of impurity band in the forbidden band, (ii) the band-gap narrowing, and (iii) the p-type
conductivity, along with their structural properties. Zn1–xCuxO thin films were fabricated by rf magnetron sputtering,
and Cu contents x can be controlled by the sputtering source. The structural studies revealed the columnar structures
and no pronounced elemental segregations. The p-type conductivities were examined by the thermoelectric
measurements, and observed from Zn1–xCuxO thin films with x ≥ 0.09 under O-rich deposition conditions. The
Meyer-Neldel rules observed in the electrical conductivity implied that the p-type conductivities appeared despite of
the compensation by the native donor defects. The optical absorption spectra suggested that the impurity band was
formed in the forbidden band of p-type Zn1–xCuxO at 1.0–1.4 eV above the valence band maximum. They also
indicated that the direct fundamental band gap was reduced from 3.3 eV to 2.8 eV with an increase in x. Finally, the
photovoltaic performance was demonstrated using the p-Zn1–xCuxO / n-Si heterojunction solar cells.