cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Simulation of ultrasonic monitoring data to improve corrosion characterisation within high temperature environments
Creators: name: Jarvis, Andrew John Christopher
Publisher: name: Imperial College London
Year: 2013

description: Practical applications which involve analyzing how waves scatter from objects with complex shapes span countless scienti c and engineering disciplines. Having been the focal point of much research over the past century, many di erent techniques for simulating such interactions are in common use throughout literature; however there is still an opportunity to improve upon the balance between accuracy and e - ciency o ered by the most commonly implemented methods. A simulation based on the scalar wave distributed point source method is proposed, exhibiting a large im- provement in computational e ciency when compared to the nite element method, and providing greater accuracy than the Kirchho approximation by including phe- nomena such as multiple scattering, surface self-shadowing and edge di raction. The technique is applied to the problem of simulating how ultrasonic pulses re- ect from rough surfaces; the practical application being wall thickness monitoring in high temperature and corrosive environments. Results show that the re ected pulse can take any number of forms, depending on the speci c shape of the scat- tering surface, which can have a dramatic impact on the accuracy of the thickness measurement. Conclusions are drawn about the stability of various time of ight algorithms under conditions of increasing surface roughness. Potential thickness er- ror metrics are also proposed with the aim of estimating measurement uncertainty based on signal shape change. The great e ciency of the simulation technique is further demonstrated by applying it to three dimensional scattering scenarios which would be impossible to carry out using any other method, leading to the proposal of a correction procedure capable of converting results gained in two dimensional geometries to more closely resemble three dimensional results based on the speci c transducer and rough surface characteristics. Simulation validation is carried out by comparison to experimental results in both two dimensional and three dimensional scattering scenarios, showing agreement within the experimental error bounds of the shear horizontal ultrasonic waveguide transducers used by the wall thickness sen- sor. Alternative high temperature structural degradation monitoring applications are also proposed and experimentally veri ed using an array of waveguide transduc- ers, providing monitoring solutions for thermal fatigue crack growth and hydrogen attack.
title: ADCO, Comptes du Petit-Cîteaux (1477-1491) (11 H 1179), f. 00211
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: comptes
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Comptes du Petit-Cîteaux (1477-1491), Archives départementales de la Côte-d'Or, (11 H 1179). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Comptes du Petit-Cîteaux (1477-1491), Archives départementales de la Côte-d'Or, (11 H 1179), f. 00211, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Statistical mechanics, entropy and macroscopic properties of granular and porous materials
Creators: name: Amitai, Shahar
Publisher: name: Imperial College London
Year: 2017

description: Granular materials are an intriguing phase of matter. They can support stresses like a solid, but can also flow down a slope like a liquid. They compress under tapping, but dilate under shearing. Granular materials have fascinated the research community for centuries, but are still not fully understood. A granular statistical mechanical formalism was introduced a quarter of a century ago. However, it is still very much a theory in evolution. In this thesis, we present a few developments of the theory, which make it more rigorous and testable. We adjust the original formalism by replacing the volume function by a more suitable connectivity function. We identify the structural degrees of freedom as the edges of a spanning tree of the contact network graph. We extend the formalism to include constraints on these degrees of freedom and correlations between them. We combine between this formalism and the better established stress ensemble, and then derive an equipartition principle and an equation of state, relating the macroscopic volume and boundary stress to the analogue of the temperature, the contactivity. This makes the theory testable by macroscopic measurements. We then address two application-orientated problems, involving the porous media made by consolidated granular materials. First, we present a scheme to design porous fuel cell electrodes such that the three-phase boundary (TPB) is maximised. These electrodes are made of sintered bi-disperse powders, and the longer their TPB the more efficient the fuel cell. Using a systematic analysis for a commonly used set of given constraints, we find optimal design parameters that yield a TPB that is three times longer than the conventional design under the same constraints. Then, we focus on transport in the pore space of such materials. We study the diffusion of finite-size particles in porous media, and what makes them anomalous. Having pinned-down the causes for sub-diffusion, we develop a continuous-time random walk-based model that predicts correctly the anomaly parameter.
Sex differences in the progression from cardiac hypertrophy towards heart failure
Creators: name: Yang, Hsiang-Yu
Publisher: name: Imperial College London
Year: 2017

description: This thesis aims to investigate differential changes in Ca2+ and Na+ regulation during the development from cardiac hypertrophy to heart failure (HF) between sexes. Clinical evidences show females are more resistant to the development of cardiac hypertrophy and have better survival in HF than males. Oestrogen is postulated to provide cardioprotection although this is still under debate. This work used guinea pigs (GPs), a species with electrophysiology akin to human, that were subjected to aortic constriction (AC) to study the progression from pressure-overload cardiac hypertrophy to HF between sexes. Selected female animals underwent ovariectomy (OVx), mimicking postmenopausal status, to examine the effects of long-term deprivation of ovarian hormones. The effect of oestradiol supplementation was also investigated. Ventricular myocytes isolated from hearts at cardiac hypertrophy had prolonged action potential duration (APD), increased Ca2+ transient amplitudes and SR Ca2+ content, reduced Na+/K+ ATPase (NKA) function and increased late sodium current (INa,L). Fractional shortening (FS) remained unchanged in these hearts. Compromised FS with detrimental Ca2+ handling, more reduced NKA function and enhanced INa,L were noted at HF. Males showed earlier declined NKA function, more compromised FS and more detrimental Ca2+ handling than females at HF. Ventricular myocytes from OVx animals showed increased L-type Ca2+ channel current with gating shifts and larger window current, larger Ca2+ transient amplitudes, greater SR Ca2+ content, and increased Ca2+ sparks and waves. OVx myocytes showed more early and delayed afterdepolarisations (EADs and DADs) with DAD-induced extrasystoles following β-adrenergic stimulation. AC with OVx GPs showed more reduced FS, more dysregulated Ca2+ handling, more reduced NKA function and larger INa,L than AC females. In conclusion, females were more resistant to pressure-overload. Long-term deprivation of ovarian hormones abolishes the slower onset of HF in females, and provides pro-arrhythmic substrates to females. Oestradiol supplementation offered protective effects on OVx GPs.
SPH simulations of tidally unstable accretion disks in cataclysmic variables
Creators: name: Murray, James R.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We numerically study the precessing disk model for superhump in the SU~UMa subclass of cataclysmic variables, using a two dimensional SPH code specifically designed for thin disk problems. Two disk simulations for a binary with mass ratio $q=\frac{3}{17}$ (similar to OY~Car) are performed, in order to investigate the Lubow (1991 a,b) tidal resonance instability mechanism. In the first calculation, a disk evolves under steady mass transfer from $L_1$. In the second simulation, mass is added in Keplerian orbit to the inner disk. The two disks follow similar evolutionary paths. However the $L_1$ stream-disk interaction is found to slow the disk's radial expansion and to circularise gas orbits. The initial eccentricity growth in our simulations is exponential at a rate slightly less than predicted by Lubow (1991a). We do not observe a clearing of material from the resonance region via the disk's tidal response to the $m=2$ component of the binary potential as was described in Lubow (1992). Instead the $m=2$ response weakens as the disk eccentricty increases. Both disks reach an eccentric equilibrium state, in which they undergo prograde precession. The rate of viscous energy dissipation in the disks has a periodic excess with a period matching the disk's rotation. The source is identified as a large region in the outer disk, and the mechanism by which it is produced is identified. The time taken for the periodic excess to develop is consistent with the first appearance of superhumps in a superoutburst.
description: 16 pages, postscript, gzipped, uuencoded, no figures, figures available at http://www.cita.utoronto.ca/~jmurray/ Accepted for publication by Monthly Notices
Molecular dynamics simulations of lubricants and additives
Creators: name: Ewen, James
Publisher: name: Imperial College London
Year: 2017

description: In many areas of science and technology, behaviour at the smallest scales has been shown to drive the performance of macroscopic systems. Such relationships are particularly pertinent in tribology, where key phenomena (e.g. friction and flow of lubricants) ultimately depend on atomic-scale interactions. Nonequilibrium molecular dynamics simulations can probe these scales and give unique insights into the tribological behaviour of complex molecular systems. In this thesis, several industrially important tribological systems are studied through nonequilibrium molecular dynamics simulations. Firstly, in order to ensure reliable results, potential models are compared in terms of their ability to reproduce realistic viscous behaviour of a model lubricant. These accurate models are then used to study the atomic-scale behaviour of various organic friction modifier additives under boundary lubrication conditions. The effect of molecular structure and surface coverage along with sliding velocity, pressure and surface roughness are investigated. The friction and wear reduction mechanisms of promising carbon nanoparticle additives are also examined. Finally, the effect of base oil molecular structure on friction and flow behaviour in the elastohydrodynamic lubrication regime is studied. The work has contributed to a more complete understanding of the atomic-scale behaviour of lubricants and additives and, in combination with experiments, has helped to explain several important macroscopic phenomena.
HST WFPC2 Color-Magnitude Diagrams of Halo Globular Clusters in M33: Implications for the Early Formation History of the Local Group
Creators: name: Sarajedini, Ata
name: Geisler, Doug
name: Harding, Paul
name: Schommer, Robert
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have constructed color-magnitude diagrams (CMDs) for ten globular clusters in the halo of the nearby spiral galaxy M33 based on Hubble Space Telescope Wide-Field Planetary Camera 2 observations in the F555W (~V) and F814W (~I) filters. These data reveal the morphology of the HB and allow us to estimate the cluster metallicity using the shape and color of the red giant branch. The principal result we report herein is that 8 of the 10 clusters possess exclusively red HB morphologies yet their metallicities are as metal-poor as [Fe/H] ~ -1.6. Indeed, these 8 clusters present basically only giant branch clumps reminiscent of intermediate age star clusters in the Magellanic Clouds. In addition, two of the clusters form a second parameter pair which have similar metallicities but very disparate HB types. Under the assumption that cluster age is the global second parameter, the average age of halo globular clusters in M33 appears to be a few Gyr younger than halo clusters in the Milky Way. Using the observed properties of HB stars in M31 and M33 along with published main-sequence turnoff ages for the globular clusters in the Milky Way, LMC, SMC, and the Sagittarius dwarf spheroidal (Sgr), we attempt to sketch the early formation history of these galaxies. This indicates that the Milky Way, M31, M33, the LMC, and Sgr all experienced their first epoch of cluster formation soon after the Big Bang. Three to four Gyr later, the SMC began to form its first generation of clusters; the bulk of the M33 clusters formed later still. We note that the halo clusters in M33 formed over a much longer time period than those in the Milky Way and M31.
description: 13 pages, 3 figures, to be published in the Astrophysical Journal Letters
Modelling thermo-electro-mechanical effects in orthotropic cardiac tissue
Creators: name: Baier, Ricardo Ruiz
name: Gizzi, Alessio
name: Loppini, Alessandro
name: Cherubini, Christian
name: Filippi, Simonetta
Publisher: name: arXiv
Year: 2018
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: FOS: Biological sciences

description: In this paper we introduce a new mathematical model for the active contraction of cardiac muscle, featuring different thermo-electric and nonlinear conductivity properties. The passive hyperelastic response of the tissue is described by an orthotropic exponential model, whereas the ionic activity dictates active contraction incorporated through the concept of orthotropic active strain. We use a fully incompressible formulation, and the generated strain modifies directly the conductivity mechanisms in the medium through the pull-back transformation. We also investigate the influence of thermo-electric effects in the onset of multiphysics emergent spatiotemporal dynamics, using nonlinear diffusion. It turns out that these ingredients have a key role in reproducing pathological chaotic dynamics such as ventricular fibrillation during inflammatory events, for instance. The specific structure of the governing equations suggests to cast the problem in mixed-primal form and we write it in terms of Kirchhoff stress, displacements, solid pressure, electric potential, activation generation, and ionic variables. We also propose a new mixed-primal finite element method for its numerical approximation, and we use it to explore the properties of the model and to assess the importance of coupling terms, by means of a few computational experiments in 3D.
Constraints on massive black holes as dark matter candidates using Galactic globular clusters
Creators: name: Klessen, Ralf
name: Burkert, Andreas
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This work considers the idea of massive black holes being the constituents of the Galactic dark matter halo. It constrains the maximum black hole mass to $\mbh \sil 5 \times 10^4 \msun$ by examining their influence on the population of globular clusters in our Milky Way. In the adopted halo model, globular clusters are exposed to constant bombardment of halo objects on their orbits through the Galaxy and thus will steadily gain internal energy. Depending on the mass of these halo objects and the structural parameters of the globular clusters, they can be disrupted on time scales of a few billion years and below. These disruption time scales are calculated using a modification of the well known (classical) impulsive approximation and compared with direct N-body simulations of such encounter events to ensure the method works correctly. For a set of ten prototypical globular cluster models and black hole masses ranging from $10^3$ to $10^7\:\msun$, Monte-Carlo-simulations of $10\,000$ encounter histories over the period of 10 billion years were calculated each, at three different galactocentric distances \mbox{$R = 5$}, $10$ and $15\, \kpc$. These data were compared with the real globular cluster population in our Galaxy and used to obtain the above constraint of $\mbh \sil 5 \times 10^4 \msun$.
description: 14 pages accepted at M.N.R.A.S; LaTeX file (part 1) + figures and style files (part 2); a ready to print PostScript version is available via http://www.mpia-hd.mpg.de/MPIA/Projects/THEORY/klessen/Preprints/p1.ps
Additional file 6 of Translation of the Debriefing Assessment for Simulation in Healthcare in Portuguese and cross-cultural adaptation for Portugal and Brazil
Creators: name: Couto, Thomaz Bittencourt
name: Matos, Francisco Maio
name: de Toledo Rodovalho, Paula Dias
name: Fey, Mary
name: Simon, Robert
name: Muller-Botti, Sacha
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Molecular Biology
subject: Neuroscience
subject: Sociology
subject: FOS: Sociology

description: Additional file 6. Back translation of elements 2 and 5.
Additional file 7 of Translation of the Debriefing Assessment for Simulation in Healthcare in Portuguese and cross-cultural adaptation for Portugal and Brazil
Creators: name: Couto, Thomaz Bittencourt
name: Matos, Francisco Maio
name: de Toledo Rodovalho, Paula Dias
name: Fey, Mary
name: Simon, Robert
name: Muller-Botti, Sacha
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Molecular Biology
subject: Neuroscience
subject: Sociology
subject: FOS: Sociology

description: Additional file 7: Supplemental table. Conflicts detected between DASH and Back Translation of Elements 2 and 5.
Strategies for Feature-Assisted Development of Topology Agnostic Planar Antennas Using Variable-Fidelity Models
Creators: name: Bekasiewicz, Adrian
name: Askaripour, Khadijeh
name: Dzwonkowski, Mariusz
name: Dhaene, Tom
name: Couckuyt, Ivo
Publisher: name: arXiv
Year: 2025
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Design of antennas for contemporary applications presents a complex challenge that integrates cognitive-driven topology development with the meticulous adjustment of parameters through rigorous numerical optimization. Nevertheless, the process can be streamlined by emphasizing the automatic determination of structure geometry, potentially reducing the reliance on traditional methods that heavily rely on engineering insight in the course of antenna development. In this work, which is an extension of our conference paper [1], a specification-oriented design of topologically agnostic antennas is considered by utilizing two strategies focused on bandwidth-specific design and bandwidth-enhanced optimization. The process is embedded within a variable-fidelity framework, where the low-fidelity optimization involves classification of randomly generated topologies, followed by their local tuning using a trust-region algorithm applied to a feature-based representation of structure response. The final result is then tuned using just a handful of high-fidelity simulations. The strategies under consideration were verified on a case study basis concerning automatic generation of three radiators with varying parameters. Benchmarks of the algorithm against more standard optimization methods, as well as comparisons of the obtained topologies with respect to state-of-the-art antennas from literature have also been considered.
A Generalization on Product Degree Distance of Strong Product of Graphs
Creators: name: K. Pattabiraman
Publisher: name: figshare
Year: 2018
Subjects: Algebra

description: In this paper, the exact formulae for the generalized product degree distance, reciprocal product degree distance and product degree distance of strong product of a connected graph and the complete multipartite graph with partite sets of sizes m0, m1, · · · , mr−1 are obtained.
Coherence in quantum error-correcting codes
Creators: name: Beale, Stefanie J.
name: Wallman, Joel J.
name: Gutiérrez, Mauricio
name: Brown, Kenneth R.
name: Laflamme, Raymond
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Typical studies of quantum error correction assume probabilistic Pauli noise, largely because it is relatively easy to analyze and simulate. Consequently, the effective logical noise due to physically realistic coherent errors is relatively unknown. Here, we prove that encoding a system in a stabilizer code and measuring error syndromes decoheres errors, that is, causes coherent errors to converge toward probabilistic Pauli errors, even when no recovery operations are applied. Two practical consequences are that the error rate in a logical circuit is well quantified by the average gate fidelity at the logical level and that essentially optimal recovery operators can be determined by independently optimizing the logical fidelity of the effective noise per syndrome.
description: 6 pages + references. See related work by Huang, Doherty, and Flammia
Experimental investigation of the thermo-mechanical behaviour and thermal properties of london clay
Creators: name: Martinez Calonge, Daniel
Publisher: name: Imperial College London
Year: 2017

description: In recent years, the study of the thermo-hydro-mechanical behaviour of soils has been a growing area within the geotechnical community due to its importance to a wide range of civil engineering applications and activities which involve the ground as a heat source, sink or medium for heat storage. This thesis reports an experimental study of the thermo-mechanical behaviour and thermal properties of London clay and is structured in three blocks as follows. The first part of the thesis describes the development of new experimental capabilities in the Imperial College Geotechnics Laboratory and the methodology of the thermo-mechanical and thermal properties tests. A new temperature-controlled apparatus capable of testing saturated soils at pressures up to 800 kPa and temperatures ranging from ambient to 85 ºC is presented. The thermal performance of the cell is thoroughly assessed, as well as the calibration of the different components. Furthermore, the use of needle techniques, single and dual probe, for the measurement of the thermal properties of soils is investigated. The second part reports a laboratory programme of thermo-mechanical tests on reconstituted London clay samples. The thermally-induced volumetric strains during drained heating and cooling cycles in samples with different stress histories are investigated, showing similitudes and discrepancies with other clays. The nature of the measurement of thermal deformations in this study, as well as on published work, is discussed in detail. Moreover, the temperature effects on the compression behaviour, strength and stiffness of the material are also investigated. Finally, the measurements of the thermal properties (thermal conductivity, diffusivity and volumetric heat capacity) performed on reconstituted and intact London clay samples using the single needle and dual-probe heat-pulse tests are presented, discussing the influence of the state and nature of the sample (porosity, water content, mineralogy), direction of measurement and the appropriateness of the instruments used.
Star-Formation Knots in IRAS Galaxies
Creators: name: Hutchings, J. B.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Images of IRAS galaxies with a range of IR properties are examined for bright knots, both within and outside the galaxy. These are found almost exclusively in galaxies with steep IR spectra, but over a wide range of IR luminosity, and usually without strong nuclear activity. In most cases, the knots are likely to be star-formation induced by tidal interactions, and are seen in the early stages of such interactions. Detailed photometry is presented of knots in six representative galaxies. The knots appear to have a wide range of colour and luminosity, but it is argued that many are heavily reddened. Knots formed outside the parent galaxy may be a new generation of what later become globular clusters, but they appear to have a wide range of luminosities.
description: 11 pages plain TeX, 5 figures not included but available by request to hutchngs@dao.nrc.ca To appear in the Astronomical Journal. Also available at http://www.dao.nrc.ca/DAO/SCIENCE/science.html
The Revival of Galactic Cosmic Ray Nucleosynthesis?
Creators: name: Fields, Brian D.
name: Olive, Keith A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Because of the roughly linear correlation between Be/H and Fe/H in low metallicity halo stars, it has been argued that a ``primary'' component in the nucleosynthesis of Be must be present in addition to the ``secondary'' component from standard Galactic cosmic ray nucleosynthesis. In this paper we critically re-evaluate the evidence for the primary versus secondary character of Li, Be, and B evolution, analyzing both in the observations and in Galactic chemical evolution models. While it appears that [Be/H] versus [Fe/H] has a logarithmic slope near 1, it is rather the Be-O trend that directly arises from the physics of spallation production. Using new abundances for oxygen in halo stars based on UV OH lines, we find that the Be-O slope has a large uncertainty due to systematic effects, rendering it difficult to distinguish from the data between the secondary slope of 2 and the primary slope of 1. The possible difference between the Be-Fe and Be-O slopes is a consequence of the variation in O/Fe versus Fe: recent data suggests a negative slope rather than zero (i.e., Fe $\propto$ O) as is often assumed. In addition to a phenomenological analysis of Be and B evolution, we have also examined the predicted LiBeB, O, and Fe trends in Galactic chemical evolution models which include outflow. Based on our results, it is possible that a good fit to the LiBeB evolution requires only traditional the Galactic cosmic ray spallation, and the (primary) neutrino-process contribution to B11. We thus suggest that these two processes might be sufficient to explain Li6, Be, and B evolution in the Galaxy, without the need for an additional primary source of Be and B.
description: 25 pages, latex, 8 ps figures, figure 1 corrected
Picus martius Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Piciformes
Picidae
Picus
Picus martius

description: Picus martius [spec. nov.]
P. niger, pileo coccineo. Faun. svec. 79.
Picus niger maximus. Gesn. av. 708. Aldr. orn. l. 12. c. 31. Will. ornith. 22. t. 21. Raj. av. 42. Alb. av. 2. p. 26. t. 27. Frisch. av. t. 34. f. 1.
Habitat in Europa, vix in Anglia.
Arbores emortuas conscindit.
Lingua Picorum & Jyngis inseritur fronti. Intestina caecis carent.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 112, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
A Deep-Unfolding Approach to RIS Phase Shift Optimization Via Transformer-Based Channel Prediction
Creators: name: Koralege, Ishan
name: de Sena, Arthur S.
name: Mahmood, Nurul H.
name: Karim, Farjam
name: Lesthuruge, Dimuthu
name: Gunarathne, Samitha
Publisher: name: arXiv
Year: 2025
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Reconfigurable intelligent surfaces (RISs) have emerged as a promising solution that can provide dynamic control over the propagation of electromagnetic waves. The RIS technology is envisioned as a key enabler of sixth-generation networks by offering the ability to adaptively manipulate signal propagation through the smart configuration of its phase shift coefficients, thereby optimizing signal strength, coverage, and capacity. However, the realization of this technology's full potential hinges on the accurate acquisition of channel state information (CSI). In this paper, we propose an efficient CSI prediction framework for a RIS-assisted communication system based on the machine learning (ML) transformer architecture. Architectural modifications are introduced to the vanilla transformer for multivariate time series forecasting to achieve high prediction accuracy. The predicted channel coefficients are then used to optimize the RIS phase shifts. Simulation results present a comprehensive analysis of key performance metrics, including data rate and outage probability. Our results confirm the effectiveness of the proposed ML approach and demonstrate its superiority over other baseline ML-based CSI prediction schemes such as conventional deep neural networks and long short-term memory architectures, albeit at the cost of slightly increased complexity.
description: Accepted for Scandinavian Simulation Society(SIMS) EUROSIM 2024
Quantum Nash equilibrium in the thermodynamic limit
Creators: name: Sarkar, Shubhayan
name: Benjamin, Colin
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computer Science and Game Theory (cs.GT)
subject: Econometrics (econ.EM)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: The quantum Nash equilibrium in the thermodynamic limit is studied for games like quantum Prisoner's dilemma and the quantum game of chicken. A phase transition is seen in both games as a function of the entanglement in the game. We observe that for maximal entanglement irrespective of the classical payoffs, a majority of players choose Quantum strategy over Defect in the thermodynamic limit.
description: 14 pages, 3 figures, accepted for publication in Quantum Information Processing (2019)
Additional file 1 of Quantification of regurgitation in mitral valve prolapse with four-dimensional flow cardiovascular magnetic resonance
Creators: name: Spampinato, Ricardo A.
name: Jahnke, Cosima
name: Crelier, Gerard
name: Lindemann, Frank
name: Fahr, Florian
name: Czaja-Ziolkowska, Monika
name: Sieg, Franz
name: Strotdrees, Elfriede
name: Hindricks, Gerhard
name: Borger, Michael A.
name: Paetsch, Ingo
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1. 4D flow CMR Acquisition details.
Additional file 1 of Managing overlap of primary study results across systematic reviews: practical considerations for authors of overviews of reviews
Creators: name: Lunny, Carole
name: Pieper, Dawid
name: Thabet, Pierre
name: Kanji, Salmaan
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1.
Rates for Color Shifted Microlensing Events
Creators: name: Buchalter, Ari
name: Kamionkowski, Marc
name: Rich, R. Michael
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: If the objects responsible for gravitational microlensing (ML) of Galactic-bulge stars are faint dwarfs, then blended light from the lens will distort the shape of the ML light curve and shift the color of the observed star during the event. The resolution in current surveys is not accurate enough to observe this effect, but it should be detected with frequent and precise followup observations. We calculate the expected rates for ML events where the shape distortions will be observable by such followup observations, assuming that the lenses are ordinary main-sequence stars in a bar and in the disk. We study the dependence of the rates for color-shifted (CS) events on the frequency of followup observations and on the precision of the photometry for a variety of waveband pairings. We find that for hourly observations in $B$ and $K$ with typical photometric errors of 0.01 mag, 28\% of the events where a main-sequence bulge star is lensed, and 7\% of the events where the source is a bulge giant, will give rise to a measurable CS at the 95\% confidence level. For observations in $V$ and $I$, the fractions become 18\% and 5\%, respectively, but may be increased to 40\% and 13\% by improved photometric accuracy and increased sampling frequency. We outline how the mass, distance, and transverse speed of the lens can be obtained, giving examples of typical errors. We discuss how CS events can be distinguished from events where the source is blended with a binary companion.
description: 36 pages, uuencoded postscript file
3-Difference Cordial Labeling of Corona Related Graphs
Creators: name: R. Ponraj
name: Adaickalam, Maria
Publisher: name: figshare
Year: 2018
Subjects: Algebra

description: In this paper we investigate 3-difference cordial labeling behavior of DTn ⊙ K1 DTn ⊙ 2K1,DTn ⊙ K2 and some more graphs.
Gravity effects on mixing with magnetic micro-convection in microfluidics
Creators: name: Kitenbergs, Guntars
name: Tatuļčenkovs, Andrejs
name: Puķina, Lāsma
name: Cēbers, Andrejs
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Mixing remains an important problem for development of successful microfluidic and lab-on-a-chip devices, where simple and predictable systems are particularly interesting. One is magnetic micro-convection, an instability happening on the interface of miscible magnetic and non-magnetic fluids in a Hele-Shaw cell under applied field. Previous work proved that Brinkman model quantitatively explains the experiments. However, a gravity caused convective motion complicated the tests. Here we first improve the experimental system to exclude the gravitational convective motion. Afterwards, we observe and quantify how gravity and laminar flow play an important role in stabilizing the perturbations that create the instability. Accordingly, we improve our theoretical model and perform linear analysis. Two dimensionless quantities explain the experimental observations of change in critical field needed for instability and characteristic size of the emerging pattern. Finally, we discuss the conditions at which gravity plays an important role in microfluidic systems.
description: Submitted to EPJE for Topical Issue (Flowing Matter, Problems and Applications),(COST Action MP1305)
High-resolution Observations of OH(1720 MHz) Masers Toward the Galactic Center
Creators: name: Yusef-Zadeh, F.
name: Roberts, D. A.
name: Goss, W. M.
name: Frail, D. A.
name: Green, A. J.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: High-resolution VLA observations of 1720 MHz OH maser emission from Sgr A East and the circumnuclear disk with spatial and spectral resolutions of $\approx$ 2\dasec5 $\times$ 1\dasec3 and 0.27 \kms are reported. This follow-up observational study focuses on the recent discovery of a number of such OH maser features and their intense circularly polarized maser lines detected toward these Galactic center sources. The 1720 MHz maser line of OH arises from collisionally excited gas behind a C-type shock and is an important diagnostic of the interaction process that may occur between molecular clouds and associated X-ray emitting shell-type supernova remnants. The present observations have confirmed that the observed Stokes $V$ signal is due to Zeeman splitting and that the OH masers are angularly broadened by the scattering medium toward the Galactic center. The scale length of the magnetic field fluctuations in the scattering medium toward the Galactic center is estimated to be greater than 0.1-0.2 pc using the correlation of the position angles of the scatter-broadened maser spots. In addition, the kinematics of the maser spots associated with Sgr A East are used to place a 5 pc displacement between this extended radio structure and the Galactic center.
description: 13 pages, 2 Tables and 2 figures, to be published in ApJ
Additional file 1 of Common and mutation specific phenotypes of KRAS and BRAF mutations in colorectal cancer cells revealed by integrative -omics analysis
Creators: name: Kundu, Snehangshu
name: Ali, Muhammad Akhtar
name: Handin, Niklas
name: Conway, Louis P.
name: Rendo, Veronica
name: Artursson, Per
name: He, Liqun
name: Globisch, Daniel
name: Sjöblom, Tobias
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: Computational Biology

description: Additional file 1:Supplementary Figure S1. Knock-in of KRAS G12C/D/V/13D in human RKO colorectal cancer cells by homologous recombination. A An AAV gene targeting construct was designed to introduce the KRAS G12C/D/V/13D allele in the second exon of KRAS in RKO BRAF WT cells. Numbers indicate primers used for homology arm amplification (7–10) (Supplementary Tables 1, Additional File 2), PCR screening for construct integration (11 and 12) and Cre-mediated removal of the resistance marker (13 and 14) (Supplementary Tables 1, Additional File 2). B PCR detection of targeted KRAS alleles in RKO BRAF WT human colorectal cancer cells in three independent clones. The PCR products of 1181 and 1050 bp represents wild type and targeted alleles, respectively. Supplementary Fig. 2. Detection of knock-in alleles by Sanger sequencing. Sanger sequencing (Supplementary Table 1) was performed using cDNAs from two different clones of (A) RKO KRAS G12C/D/V/13D knock-ins as well as single clone of RKO BRAF WT isogenic control, and from single clone (B) HCT116 BRAF V600E knock-in and HCT116 KRAS WT isogenic control. Supplementary Fig. 3. Validation of expression KRAS knock-in alleles by transcriptome sequencing. Illumina-based transcriptome sequencing (~ 25 M reads/sample) using total RNAs from two different clones of (A) RKO KRAS WT control, (B-E) G12C/D/V and G13D knock-ins and from single clone (F) HCT116 KRAS WT isogenic control as well as (G) HCT116 BRAF V600E knock-in. Presence of knock-in alleles in the transcriptome datasets were visualized in IGV. Supplementary Fig. 4. Differentially Expressed Genes (DEGs) from transcriptomes of KRAS mutant cells. Heatmap representations of the top 100 normalized DEGs with ㅣlog2 FCㅣ > 1 and adjusted P 1 and adjusted P 1, adjusted P 1 and adjusted P 1 and adjusted P value
Heavy Elements in the Lyman-$α$\ Forest: Abundances and Clustering at z=3
Creators: name: Womble, D. S.
name: Sargent, W. L. W.
name: Lyons, R. S.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: For the purpose of studying the properties of heavy-elements associated with the Lyman-$α$\ forest, we observed the gravitational lens Q1422+2309. We used the HIRES instrument on the W.M. Keck telescope to obtain a high-resolution, very high signal-to-noise spectrum of this z=3.63 quasar; the spectrum covers wavelengths from below Lyman-$β$\ up to the C IV emission line. Consistent with previous estimates, we find that a moderate fraction of the Ly-$α$\ forest clouds have been enriched with heavy elements at a level significantly below solar abundance. However, unlike the fairly uniform distribution of Ly-$α$\ forest lines, we show that the C IV absorption lines are clustered on large velocity scales.
description: 5 pages, 2 figures, full-sized figures and paper also available at ftp://astro.caltech.edu/users/dsw/ as xxx_fig1.ps, xxx_fig2.ps, and xxx_paper.ps
Picus principalis Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Piciformes
Picidae
Picus
Picus principalis

description: Picus principalis [spec. nov.]
P. niger, crista coccinea, linea utrinque collari remigibusque secundariis albis.
Picus maximus, rostro albo. Catesb. car. 1. p. 16. t. 16.
Habitat in America septentrionali.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 113, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
MPEC 2025-D176 : 2025 DY6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 DY6

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Adjacency Matrices of Some Directional Paths and Stars
Creators: name: Kumar, Rajesh
Publisher: name: figshare
Year: 2018
Subjects: Algebra

description: In this paper, we discuss the adjacency matrices of graceful digraphs such as unidirectional paths,alternating paths, many orientations of directed star and a class of directed bistar. We also discuss the adjacency matrices of unidirectional paths and alternating paths if they are odd digraceful.
Achieving High-Fidelity Single-Qubit Gates in a Strongly Driven Charge Qubit with $1\!/\!f$ Charge Noise
Creators: name: Yang, Yuan-Chi
name: Coppersmith, S. N.
name: Friesen, Mark
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Charge qubits formed in double quantum dots represent quintessential two-level systems that enjoy both ease of control and efficient readout. Unfortunately, charge noise can cause rapid decoherence, with typical single-qubit gate fidelities falling below $90\%$. Here, we develop analytical methods to study the evolution of strongly driven charge qubits, for general and $1\!/\!f$ charge-noise spectra. We show that special pulsing techniques can simultaneously suppress errors due to strong driving and charge noise, yielding single-qubit gates with fidelities above $99.9\%$. These results demonstrate that quantum dot charge qubits provide a potential route to high-fidelity quantum computation.
description: 19 pages, 4 figures
MPEC 2024-G121 : 2023 YE6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 YE6

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Baryonic Dark Halos: A Model with MACHOS and Cold Gas Globules
Creators: name: Gerhard, Ortwin
name: Silk, Joseph
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The dark matter in the halos of galaxies may well be baryonic, and much of the mass within them could be in the form of clusters of substellar objects within which are embedded cold gas globules. Such halos might play an active role in galaxy formation and evolution.
description: To be published in the Proceedings of IAU Symposium 171, `New Light on Galaxy Evolution', Eds.: R. Bender and R. Davies. 4 pages, gzip-compressed and uuencoded PS file. Also available at http://www.astro.unibas.ch/~gerhard/papers/iau171_bdm.ps.gz.uu
title: ADCO, Huitième cartulaire de Saint-Étienne de Dijon (1661-1667), Cart. 31 (G 135), 549 folios, f. 0054
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Huitième cartulaire de Saint-Étienne de Dijon (1661-1667), Archives départementales de la Côte-d'Or, Cart. 31 (G 135), 549 folios, f. 0054, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Huitième cartulaire de Saint-Étienne de Dijon (1661-1667), Archives départementales de la Côte-d'Or, Cart. 31 (G 135), 549 folios, f. 0054, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: http://www.wikidata.org/entity/Q15945019
description: Provenance: abbaye Saint-Étienne de Dijon