cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Shape optimisation for a class of semilinear variational inequalities with applications to damage models
Creators: name: Heinemann, Christian
name: Sturm, Kevin
Publisher: name: Weierstrass Institute
Year: 2016
Subjects: subject: shape optimisation
subject: semilinear elliptic variational inequalities
subject: optimisation problems in Banach spaces
subject: obstacle problems
subject: damage phase field models
subject: elasticity
subject: 49K40
subject: 49J27
subject: 49J40
subject: 49Q10
subject: 35J61
subject: 49K20
subject: 74R05
subject: 74B99

description: The present contribution investigates shape optimisation problems for a class of semilinear elliptic variational inequalities with Neumann boundary conditions. Sensitivity estimates and material derivatives are firstly derived in an abstract operator setting where the operators are defined on polyhedral subsets of reflexive Banach spaces. The results are then refined for variational inequalities arising from minimisation problems for certain convex energy functionals considered over upper obstacle sets in $H^1$. One particularity is that we allow for dynamic obstacle functions which may arise from another optimisation problems. We prove a strong convergence property for the material derivative and establish state-shape derivatives under regularity assumptions. Finally, as a concrete application from continuum mechanics, we show how the dynamic obstacle case can be used to treat shape optimisation problems for time-discretised brittle damage models for elastic solids. We derive a necessary optimality system for optimal shapes whose state variables approximate desired damage patterns and/or displacement fields.
Cosmic Optical Activity in a Randall-Sundrum Braneworld with Bulk Kalb-Ramond field
Creators: name: Maity, Debaprasad
name: SenGupta, Soumitra
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Optical activity of electromagnetic waves in a string inspired Kalb-Ramond cosmological background is studied in presence of extra spacetime dimension. The Kalb-Ramond-electromagnetic coupling which originates from the gauge anomaly cancelling Chern-Simons term in a string inspired model, is explicitly calculated following Randall-Sundrum braneworld conjecture. It is shown that the Randall-Sundrum scenario leads to an enormous enhancement of the optical rotation of a plane polarized electromagnetic wave propagating on the visible brane.Absence of any experimental support in favour of such a large rotation in astrophysical experiments on distant galactic radio waves indicates an apparent conflict between Randall-Sundrum brane world scenario and the presence of Kalb-Ramond antisymmetric tensor field in the background spacetime.
description: 12 Pages, Latex, No figures,Version revised thoroughly, Accepted for publication in Classical and Quantum Gravity
Decay Constants of the Heavy-Light Mesons $D^{(*)}$ and $B^{(*)}$: Isospin Breaking
Creators: name: Lucha, Wolfgang
name: Melikhov, Dmitri
name: Simula, Silvano
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: QCD sum rules are analytic predictions of hadron observables from quantum chromodynamics. In the so-called local-duality limit of their Borel-transformed form, all nonperturbative contributions are encompassed by just a single quantity, an effective threshold beyond which, by assumption, all hadronic contributions are reliably described by perturbative QCD. Reconstructing its quark-mass dependence enables us to investigate the differences of the leptonic decay constants of heavy-light mesons effectuated by the tiny isospin-violating discrepancy of the masses of up and down quarks. By and large, our findings enjoy excellent agreement with the outcomes of earlier studies, the only exception being a lattice-QCD prediction for the $B$ mesons, where we find dramatic disagreement.
description: 4 pages, 1 figure, contributed to "The European Physical Society Conference on High Energy Physics - EPS-HEP 2017" (5 - 12 July 2017, Venice, Italy)
title: Le mariage à la tribu
Creators: name: Ehrhart, Sabine
name: Rivierre, Jean-Claude
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2011
Subjects: subject: Bwatoo
subject: bwa

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
title: Temperance
Creators: name: Ehrhart, Sabine
name: Rivierre, Jean-Claude
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2011
Subjects: subject: Bwatoo
subject: bwa

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
Beyond Young measures
Creators: name: Tartar, Luc
Publisher: name: Carnegie Mellon University
Year: 1995
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Abstract: "Young measures and their limitations are discussed. Some relations between Young measures and H-measures are described and used to analyze an example from micromagnetics. The need to improve H-measures and semi-classical measures is stressed."
Nuclear elastic scattering of protons below 250 MeV in FLUKA v4-4.0 and its role in single-event-upset production in electronics
Creators: name: Serban, Alexandra-Gabriela
name: Coronetti, Andrea
name: Alia, Ruben Garcia
name: Pujol, Francesc Salvat
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: FLUKA is among the general-purpose codes for the Monte Carlo simulation of radiation transport that are routinely employed to estimate the production of single-event-upsets (SEUs) in commercial static random access memories (SRAMs) exposed to radiation. Earlier studies concerning the production of SEUs in commercial SRAMs under proton irradiation revealed very good agreement between experimental measurements and FLUKA estimates of the SEU production cross section for proton energies above 20-30 MeV. However, at lower proton energies, where the cross section for SEU production in such low-critical-charge components increases drastically, a FLUKA underestimation of up to two orders of magnitude was observed. Preliminary analyses indicated that this underestimation was in great measure due to the lack of nuclear elastic scattering of protons below 10 MeV in FLUKA up to version 4-3.4. To overcome this limitation, a new model for the nuclear elastic scattering of protons has been developed, combining partial-wave analyses and experimental angular distributions. This newly developed model has been included in FLUKA v4-4.0, and leads to an order-of-magnitude improvement in the agreement between FLUKA and experimental cross sections for the production of SEUs in SRAMs under proton irradiation in the 1-10 MeV energy domain.
description: 14 pages, 15 figures
Autonomous Dynamical System Approach for $f(R)$ Gravity
Creators: name: Odintsov, S. D.
name: Oikonomou, V. K.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work we shall investigate the cosmological dynamical system of $f(R)$ gravity, by constructing it in such a way so that it is rendered autonomous. We shall study the vacuum $f(R)$ gravity case, but also the case that matter and radiation perfect fluids are present along with the $f(R)$ gravity. The dynamical system is constructed in such a way so that the time-dependence of the system is contained in a single parameter which depends on the Hubble rate and it's second derivative. The autonomous structure of the dynamical system is achieved when this parameter is constant, therefore we focus on these cases. For the vacuum $f(R)$ case, we investigate two cases with the first leading to a stable de Sitter attractor fixed point but also to an unstable de Sitter fixed point, and the second is related to a matter dominated era. The stable de Sitter attractor is also found for the $f(R)$ gravity in the presence of matter and radiation perfect fluids. In all the cases we performed a detailed numerical analysis of the dynamical system and we also investigate in detail the stability of the resulting fixed points. Also, we present an exceptional feature of the $R^2$ gravity model, in the absence of perfect fluids. Finally, we investigate what is the approximate form of the $f(R)$ gravities near the stable and the unstable de Sitter fixed points.
description: PRD Accepted
Additional file 1 of Prevalence of hepatitis B infection among tricycle waste collectors, Greater Kumasi Ghana
Creators: name: Appiah, Joseph
name: Yar, Denis Dekugmen
name: Kuffour, Richard Amankwah
name: Osei-Bonsu, Rama
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1.
Between 2- and 3-colorability
Creators: name: Frieze, Alan
name: Pegden, Wesley
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: We consider the question of the existence of homomorphisms between Gn,p and odd cycles when p=c/n, 1
Improving Semantic Correspondence with Viewpoint-Guided Spherical Maps
Creators: name: Mariotti, Octave
name: Mac Aodha, Oisin
name: Bilen, Hakan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Recent progress in self-supervised representation learning has resulted in models that are capable of extracting image features that are not only effective at encoding image level, but also pixel-level, semantics. These features have been shown to be effective for dense visual semantic correspondence estimation, even outperforming fully-supervised methods. Nevertheless, current self-supervised approaches still fail in the presence of challenging image characteristics such as symmetries and repeated parts. To address these limitations, we propose a new approach for semantic correspondence estimation that supplements discriminative self-supervised features with 3D understanding via a weak geometric spherical prior. Compared to more involved 3D pipelines, our model only requires weak viewpoint information, and the simplicity of our spherical representation enables us to inject informative geometric priors into the model during training. We propose a new evaluation metric that better accounts for repeated part and symmetry-induced mistakes. We present results on the challenging SPair-71k dataset, where we show that our approach demonstrates is capable of distinguishing between symmetric views and repeated parts across many object categories, and also demonstrate that we can generalize to unseen classes on the AwA dataset.
Quasifree Eta Photoproduction from Nuclei
Creators: name: Lee, F. X
name: Wright, L. E.
name: Bennhold, C.
name: Tiator, L.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Quasifree $η$ photoproduction from nuclei is studied in the Distorted Wave Impulse Approximation (DWIA). The elementary eta production operator contains Born terms, vector meson and nucleon resonance contributions and provides an excellent description of the recent low energy Mainz measurements on the nucleon. The resonance sector includes the $S_{11}(1535)$, $P_{11}(1440)$ and $D_{13}(1520)$ states whose couplings are fixed by independent electromagnetic and hadronic data. Different models for the $ηN$ t-matrix are used to construct a simple $ηA$ optical potential based on a $t ρ$-approximation. We find that the exclusive $A(γ,ηN)B$ process can be used to study medium modifications of the $N^*$ resonances, particularly if the photon asymmetry can be measured. The inclusive $A(γ, η)X$ reaction is compared to new data obtained on $^{12}C$, $^{40}Ca$, and is found to provide a clear distinction between different models for the $ηN$ t-matrix.
description: 30 pages in RevTeX including 14 embedded PS figures; Replaced with revised version. Added more discussion about the imaginary part of the eta optical potential
Comparison of the weight increment of the Pontodrilus litoralis from How to cross the sea: testing the dispersal mechanisms of the cosmopolitan earthworm Pontodrilus litoralis
Creators: name: Chen, Shiao-Yin
name: Hsu, Chia-Hsuan
name: Soong, Keryea
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Comparison of the weight increment of the Pontodrilus litoralis earthworm between seawater (n = 14) and freshwater (n = 9) after 2 months of treatment.
Herbert Kühn, Geschichte der Vorgeschichtsforschung
Creators: name: Narr, K. J.
Publisher: name: Bonner Jahrbücher
Year: 2022

description: Rezension zu: Herbert Kühn, Geschichte der Vorgeschichtsforschung. Verlag Walter de Gruyter, Berlin - New York 1976. 1048 Seiten
description: Bonner Jahrbücher, Bd. 179.1979: Bonner Jahrbücher
Additional file 2 of Prevalence of hepatitis B infection among tricycle waste collectors, Greater Kumasi Ghana
Creators: name: Appiah, Joseph
name: Yar, Denis Dekugmen
name: Kuffour, Richard Amankwah
name: Osei-Bonsu, Rama
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2.
Provenance, geochronology and sedimentary characteristics of the Campanian M1 Sandstone, Napo Formation, Oriente Basin, Ecuador
Creators: name: Lin, Sinong
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Oriente Basin
Napo Formation
Detrital zircon
M1 Sandstone
Tidal deposits

description: The Campanian-Maastrichtian M1 Sandstone is one of the major oil reservoir units of the Napo Formation in the Oriente Basin of Ecuador. Heterogeneous reservoir behavior suggests that the depositional environments of the M1 Sandstone were laterally variable, such that they generated complex reservoir compartmentalization. This complexity also makes it difficult to determine whether multiple sandstone units of 5-20 m thickness represent only the M1 Sandstone or a composite stratigraphic interval that includes both the M1 Sandstone and the basal Tena Sandstone. A combined provenance and geochronological study was undertaken to complement sedimentological observations and to understand the regional depositional setting of the M1 Sandstone. Detrital zircon U-Pb dating was applied to 24 core samples from across the entire Oriente Basin; most samples were from accepted M1 Sandstone horizons, but some were taken from levels thought to be the basal Tena Sandstone. Probability density plot (PDP) curves depicting the U-Pb age distributions of the samples strongly suggest that Napo sediments are mainly derived from the Amazonian Craton, with the largest contribution from Rio Negro-Juruena Province (1.78-1.55 Ga) and Rondonian-San Ignacio Province (1.55-1.30 Ga). Moreover, different reservoir compartments classified as the Main M1 and Upper M1 units display distinct local signatures dominated by either the Rio Negro-Juruena or Rondonian-San Ignacio province. An important point is that the U-Pb zircon results indicate that all M1 Sandstone samples in both the central and western Oriente Basin were derived from the craton, albeit likely reworked within the basin by tidal currents. This result is surprising because previous stratigraphic models have interpreted some of the uppermost sandstone units, especially in the westernmost and central areas of the basin, to be the basal fluvial Tena Sandstone, a Maastrichtian-Paleocene unit that unconformably overlies the M1 Sandstone. Further analysis of the contrasting age signatures for the M1 and Tena sandstones, together with well log data (from about 500 wells), core descriptions and core interpretations allow a reconstruction of sediment transport patterns and a new M1 Sandstone depositional model that recognizes a landward-offset stacking of both estuarine (transgressive) and deltaic (regressive) intervals
title: Dui Dupaan et la fille du grand large
Creators: name: Rivierre, Jean-Claude
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2011
Subjects: subject: Cèmuhî
subject: cam

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
title: Résultats candidatures programme ATRI 2017
Creators: name: LabexMed
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2019

description: Relevés de décision relatifs aux candidatures pour le programme ATRI, initié par le LabexMed.
Tectonothermal evolution of a hyperextended continental rift margin, Egypt, Red Sea
Creators: name: Robbins, Samuel Grant
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Egypt
Red Sea
Rifting
Magma-poor
Low-temperature thermochronology
Geochronology
Seismic

description: Scientific understanding of the mechanics of continental breakup in the absence of voluminous magmatism has dramatically evolved over the past decades. Numerical and conceptual rift models have elucidated the temporal and spatial evolution of crustal structures and the processes operating during the onset and evolution of lithospheric extension. Critical questions remain, however, regarding the strain and thermal evolution of the lower crust during progressive rifting, particularly during hyperextension and the transition to oceanic spreading. The Gulf of Suez and Red Sea – one of the conceptually most influential continental rifts – define a Miocene rift system that preserves segments of the proximal and distal hyperextended rift margin and presents unique opportunities to study the extensional thermal history without the influence of subsequent orogenic overprinting. This study presents new basement U-Pb and (U-Th)/He data from both the proximal Egyptian margin and the distal hyperextended margin, exposed on Zabargad Island, to reconstruct the thermal evolution during progressive continental rifting. Apatite (U-Th)/He data from transects across the length of the Egyptian margin record fault-controlled rift initiation, erosional retreat of the escarpment, and necking in the proximal margin at 23-19 Ma. Integrated structural and low-temperature thermochronometric data suggest that the Northern Red Sea is a late-stage continental rift currently experiencing hyperextension caused by a kinematic shift to oblique rifting at 14 Ma. The data also suggest that the multi-phase structural evolution of the Northern Red Sea is variably influenced by inherited basement structures, with structural inheritance being more determinative in the stretching and exhumation phases, while deformation in the thinning phase cuts across older structures uniformly along strike. In the distal domain, zircon U-Pb data from Zabargad — an exhumed portion of the highly-attenuated distal margin — record coeval Miocene hyperextension at ~23-19 Ma. In contrast, rutile and apatite U-Pb data from Zabargad document a significant tectono-thermal event during the Late Miocene (~7 Ma). Integrating apatite U-Pb and trace and rare earth element (TREE) analysis with prior geochemical studies suggest that this high-temperature metamorphic event was accompanied by hydrothermal alteration in the basement. Zircon (U-Th)/He likely record cooling after the high-temperature hydrothermal pulse as the Zabargad block continues to exhume during the Pliocene. This is the first documentation of reheating of a distal continental margin incipient oceanization. These data provide critical new insights into the thermal evolution of the crust and role of reheating during the transition from initial rifting, to hyperextension, and ultimately to seafloor spreading
title: 01_1772
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Reassessing middle and inner ear morphometrics in the estimation of auditory capabilities in reptiles
Creators: name: Nelson, Jasmine R.
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Hearing
Estimation
Phylogenetic comparative methods
Reptiles
Evolution

description: Hearing, which facilitates the localization of sound and perception of acoustic communication, is directly measurable in living reptiles, but must be indirectly inferred in extinct taxa from morphological proxies. Current proxies utilize only measurements of the inner ear and do not use phylogenetic statistical approaches. Here, we use phylogenetic least squares regressions incorporating morphometrics of the middle and inner ears of extant reptiles (e.g. endosseous cochlear duct length, oval window area) to predict hearing acuity (hearing range, best frequency, minimum, and maximum hearing frequency). We use measures of hearing acuity obtained from audiograms and X-ray Computed Tomography data from a sample of 56 reptiles to develop a reptile model, and a subset of this dataset to develop Aves-specific (n=25) and Lepidosauria-specific (n=27) models. The best-fitting models, assessed through the Akaike Information Criterion (AICc) with small sample correction, were used in estimating the hearing of a sample of extinct reptiles. We find clade-specific relationships among ear measures and hearing, with models including middle ear values performing best. We recover significantly lower hearing estimates than previously estimated. These proxies will allow for more accurate estimates of hearing and a better understanding of hearing shifts in deep time
Exact solutions to the Riemann problem for compressible isothermal Euler equations for two phase flows with and without phase transition
Creators: name: Dreyer, Wolfgang
name: Hantke, Maren
name: Warnecke, Gerald
Publisher: name: Weierstrass Institute
Year: 2011
Subjects: subject: Conservation laws
subject: phase transitions
subject: non-classical shocks
subject: two phase flow model
subject: exact Riemann solver
subject: sharp interface model
subject: thermodynamics
subject: 80A22
subject: 76T15
subject: 35L65
subject: 05.70.Fh
subject: 05.70.Ce

description: We consider the isothermal Euler equations with phase transition between a liquid and a vapor phase. The mass transfer is modeled by a kinetic relation. We prove existence and uniqueness results. Further, we construct the exact solution for Riemann problems. We derive analogous results for the cases of initially one phase with resulting condensation by compression or evaporation by expansion. Further we present numerical results for these cases. We compare the results to similar problems without phase transition.
An EFT approach to baryon number violation: lower limits on the new physics scale and correlations between nucleon decay modes
Creators: name: Beneito, Arnau Bas i
name: Gargalionis, John
name: Herrero-Garcia, Juan
name: Santamaria, Arcadi
name: Schmidt, Michael A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Baryon number is an accidental symmetry of the Standard Model at the Lagrangian level. Its violation is arguably one of the most compelling phenomena predicted by physics beyond the Standard Model. Furthermore, there is a large experimental effort to search for it including the Hyper-K, DUNE, JUNO, and THEIA experiments. Therefore, an agnostic, model-independent, analysis of baryon number violation using the power of Effective Field Theory is very timely. In particular, in this work we study the contribution of dimension six and seven effective operators to $|Δ(B-L)|=0, \, 2$ nucleon decays taking into account the effects of Renormalisation Group Evolution. We obtain lower limits on the energy scale of each operator and study the correlations between different decay modes. We find that for some operators the effect of running is very significant.
description: 38 pages, 12 figures, 7 tables
High order stratigraphic framework of intraslope growth faulted subbasins offshore Matagorda Bay, Texas
Creators: name: Franey, John D.
name: 0000-0002-0138-5438
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Stratigraphy
Seismic interpretation
Sequence stratigraphy
Dip steering
HorizonCube
CCS
Carbon
Carbon sequestration

description: Carbon capture and storage (CCS) is currently one of the leading atmospheric emission mitigation technologies. To have meaningful impact on the atmosphere CO₂ concentrations, megatons (10⁶) of CO₂ must be removed from the carbon cycle permanently. This requires a subsurface geologic storage sites that are both volumetrically significant and secure over geologic time-scales. The northern Gulf of Mexico (GOM) has the ability to serve as a major location for CCS. Miocene strandplain systems in the GOM are an ideal stratigraphy for such storage due to their proximity to emissions sources, quality sand reservoirs, and depth relative to overpressure. This study focuses on a suite of strike parallel subbasins within the Lower Miocene offshore Matagorda Bay, TX. Each subbasin has potential to serve as a future carbon sequestration site. Accurate mapping of subbasins’ stratigraphy is necessary to understand the variable thickness and associated risk of reservoir-sealing shale intervals, recognizing that injection beneath thicker, more uniformly distributed shales is more favorable. These intervals must be mapped at high resolution (4th order cyclicity) to understand the individual components in assessment and risk analysis. This research generates a novel dip-steered seismic volume which is leveraged to improve seismic attribute calculations and mapping at the 4th order. The dip-steered seismic volume records the seismic dip in the inline and crossline direction of seismic features at the intersection of every inline, crossline, and seismic sample. This volume is used to generate a model of dense, 3D, auto-tracked horizons across each subbasin. The models better connect high resolution, but sparse, well log data and low resolution, but continuous, seismic data. Thickness distributions and shale interval maps generated from the models aid in risk assessment. Based on the resulting shale thicknesses, the suite of subbasins should be further considered as future storage sites
Visual Tomography: Physically Faithful Volumetric Models of Partially Translucent Objects
Creators: name: Nakath, David
name: Weng, Xiangyu
name: She, Mengkun
name: Köser, Kevin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: When created faithfully from real-world data, Digital 3D representations of objects can be useful for human or computer-assisted analysis. Such models can also serve for generating training data for machine learning approaches in settings where data is difficult to obtain or where too few training data exists, e.g. by providing novel views or images in varying conditions. While the vast amount of visual 3D reconstruction approaches focus on non-physical models, textured object surfaces or shapes, in this contribution we propose a volumetric reconstruction approach that obtains a physical model including the interior of partially translucent objects such as plankton or insects. Our technique photographs the object under different poses in front of a bright white light source and computes absorption and scattering per voxel. It can be interpreted as visual tomography that we solve by inverse raytracing. We additionally suggest a method to convert non-physical NeRF media into a physically-based volumetric grid for initialization and illustrate the usefulness of the approach using two real-world plankton validation sets, the lab-scanned models being finally also relighted and virtually submerged in a scenario with augmented medium and illumination conditions. Please visit the project homepage at www.marine.informatik.uni-kiel.de/go/vito
description: Accepted for publication at 3DV '24
Efficient linear solvers for incompressible flow simulations using Scott--Vogelius finite elements
Creators: name: Cousins, Benjamin
name: Le Borne, Sabine
name: Linke, Alexander
name: Rebholz, Leo G.
name: Wang, Zhen
Publisher: name: Weierstrass Institute
Year: 2013
Subjects: subject: Scott-Vogelius elements
subject: linear solvers
subject: static condensation
subject: augmented Lagrangian preconditioning
subject: H-LU
subject: 76D07
subject: 65F05
subject: 65F08

description: Recent research has shown that in some practically relevant situations like multiphysics flows (Galvin et al., Comput Methods Appl Mech Eng, 2012) divergence-free mixed finite elements may have a significantly smaller discretization error than standard nondivergence-free mixed finite elements. To judge the overall performance of divergence-free mixed finite elements, we investigate linear solvers for the saddle point linear systems arising in Scott-Vogelius finite element implementations of the incompressible Navier-Stokes equations. We investigate both direct and iterative solver methods. Due to discontinuous pressure elements in the case of Scott-Vogelius (SV) elements, considerably more solver strategies seem to deliver promising results than in the case of standard mixed finite elements such as Taylor-Hood elements. For direct methods, we extend recent preliminary work using sparse banded solvers on the penalty method formulation to finer meshes and discuss extensions. For iterative methods, we test augmented Lagrangian and H -LU preconditioners with GMRES, on both full and statically condensed systems. Several numerical experiments are provided that show these classes of solvers are well suited for use with SV elements and could deliver an interesting overall performance in several applications.
title: ADCO, Cartulaire de Cîteaux dit Cartularium Vetus (milieu XIIIe siècle) et Notices du XIIe siècle, Cart. 169 (11 H 63), f. 0061r
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/2011
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: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire de Cîteaux dit Cartularium Vetus (milieu XIIIe siècle) et Notices du XIIe siècle, Archives départementales de la Côte-d'Or, Cart. 169 (11 H 63), f. 0061r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux dit Cartularium Vetus (milieu XIIIe siècle) et Notices du XIIe siècle, Archives départementales de la Côte-d'Or, Cart. 169 (11 H 63), f. 0061r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Large deviations for the local times of a random walk among random conductances in a growing box
Creators: name: König, Wolfgang
name: Wolff, Tilman
Publisher: name: Weierstrass Institute
Year: 2013
Subjects: subject: random conductances
subject: random walk
subject: randomised Laplace operator
subject: local times
subject: large deviations
subject: Donsker-Varadhan-Gärtner theory
subject: spectral homogenisation
subject: Lifshitz tails
subject: 60K37
subject: 60J65
subject: 60J55
subject: 60F10

description: We derive an annealed large deviation principle (LDP) for the normalised and rescaled local times of a continuous-time random walk among random conductances (RWRC) in a time-dependent, growing box in Zd. We work in the interesting case that the conductances are positive, but may assume arbitrarily small values. Thus, the underlying picture of the principle is a joint strategy of small conductance values and large holding times of the walk. The speed and the rate function of our principle are explicit in terms of the lower tails of the conductance distribution as well as the time-dependent size of the box.
 An interesting phase transition occurs if the thickness parameter of the conductance tails exceeds a certain threshold: for thicker tails, the random walk spreads out over the entire growing box, for thinner tails it stays confined to some bounded region. In fact, in the first case, the rate function turns out to be equal to the p-th power of the p-norm of the gradient of the square root for some  2d/(d+2) < p < 2. This extends the Donsker-Varadhan-Gärtner rate function for the local times of Brownian motion (with deterministic environment) from p=2 to these values.
 As corollaries of our LDP, we derive the logarithmic asymptotics of the non-exit probability of the RWRC from the growing box, and the Lifshitz tails of the generator of the RWRC, the randomised Laplace operator. To contrast with the annealed, not uniformly elliptic case, we also provide an LDP in the quenched setting for conductances that are bounded and bounded away from zero. The main tool here is a spectral homogenisation result, based on a quenched invariance principle for the RWRC.
IPA-CuCl$_3$: a S=1/2 Ladder with Ferromagnetic Rungs
Creators: name: Masuda, T.
name: Zheludev, A.
name: Manaka, H.
name: Chung, J. -H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The spin gap material IPA-CuCl3 has been extensively studied as a ferromagnetic-antiferromagnetic bondalternating S = 1/2 chain. This description of the system was derived from structural considerations and bulk measurements. New inelastic neutron scattering experiments reveal a totally different picture: IPA-CuCl3 consists of weakly coupled spin ladders with antiferromagnetic legs and ferromagnetic rungs. The ladders run perpendicular to the originally supposed bondalternating chain direction. The ferromagnetic rungs make this system equivalent to a Haldane S = 1 antiferromagnet. With a gap energy of 1.17(1) meV, a zone-boundary energy of 4.1(1) meV, and almost no magnetic anisotropy, IPA-CuCl3 may the best Haldane-gap material yet, in terms of suitability for neutron scattering studies in high magnetic fields.
description: 2 pages, 2 figures, submitted to proceedings of LT24, Orlando, FL, August 2005
Percentage of Pontodrilus litoralis on pigeons from How to cross the sea: testing the dispersal mechanisms of the cosmopolitan earthworm Pontodrilus litoralis
Creators: name: Chen, Shiao-Yin
name: Hsu, Chia-Hsuan
name: Soong, Keryea
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Percentage of Pontodrilus litoralis earthworms remaining on different body parts of pigeons after placement.
Additional file 3 of Prevalence of hepatitis B infection among tricycle waste collectors, Greater Kumasi Ghana
Creators: name: Appiah, Joseph
name: Yar, Denis Dekugmen
name: Kuffour, Richard Amankwah
name: Osei-Bonsu, Rama
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3.
Vertical ranges of the Pontodrilus litoralis earthworms from How to cross the sea: testing the dispersal mechanisms of the cosmopolitan earthworm Pontodrilus litoralis
Creators: name: Chen, Shiao-Yin
name: Hsu, Chia-Hsuan
name: Soong, Keryea
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Vertical ranges of the Pontodrilus litoralis earthworms on Dongsha beach with seagrass piles of various thickness, during the day and night.
Four dimensional Abelian duality and SL(2,Z) action in three dimensional conformal field theory
Creators: name: Zucchini, Roberto
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently, Witten showed that there is a natural action of the group SL(2,Z) on the space of 3 dimensional conformal field theories with U(1) global symmetry and a chosen coupling of the symmetry current to a background gauge field on a 3-fold N. He further argued that, for a class of conformal field theories, in the nearly Gaussian limit, this SL(2,Z) action may be viewed as a holographic image of the well-known SL(2,Z) Abelian duality of a pure U(1) gauge theory on AdS-like 4-folds M bounded by N, as dictated by the AdS/CFT correspondence. However, he showed that explicitly only for the generator T; for the generator S, instead, his analysis remained conjectural. In this paper, we propose a solution of this problem. We derive a general holographic formula for the nearly Gaussian generating functional of the correlators of the symmetry current and, using this, we show that Witten's conjecture is indeed correct when N=S^3. We further identify a class of homology 3-spheres N for which Witten's conjecture takes a particular simple form.
description: analysis of sect. 5 generalized; 43 pages, Plain TeX, no figures, requires AMS font files amssym.def and amssym.tex
On the Coupling of the $η$ Meson to the Nucleon
Creators: name: Kirchbach, M.
name: Tiator, L.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The pseudoscalar and pseudovector $ηN$ coupling constants are calculated from an effective vertex associated with the $a_0(980)πN$ triangle diagram. The predicted values are in agreement with the ones concluded from fitting $η$ photoproduction amplitudes. In this context we stress the importance of the properties of the scalar meson octet for $η$ meson physics.
description: 11 pages LATEX and 2 postscript figures included in a self-extracting uufile type archive
Christian Andree, Rudolf Virchow als Prähistoriker 1. Virchow als Begründer der neueren deutschen Ur- und Frühgeschichtswissenschaft
Creators: name: Narr, K. J.
Publisher: name: Bonner Jahrbücher
Year: 2022

description: Rezension zu: Christian Andree, Rudolf Virchow als Prähistoriker 1. Virchow als Begründer der neueren deutschen Ur- und Frühgeschichtswissenschaft. 267 Seiten, Frontispiz. Band 2. Briefe Virchows und seiner Zeitgenossen. 541 Seiten. Böhlau Verlag, Köln - Wien 1976
description: Bonner Jahrbücher, Bd. 179.1979: Bonner Jahrbücher
Dwarf satellite galaxies in the modified dynamics
Creators: name: Brada, Rafael
name: Milgrom, Mordehai
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the modified dynamics (MOND) the inner workings of dwarf satellites can be greatly affected by their mother galaxy-over and beyond its tidal effects. Because of MOND's nonlinearity a system's internal dynamics can be altered by an external field in which it is immersed (even when this field, by itself, is constant in space). As a result, the size and velocity dispersion of the satellite vary as the external field varies along its orbit. A notable outcome of this is a substantial increase in the dwarf's vulnerability to eventual tidal disruption-rather higher than Newtonian dynamics (with a dark-matter halo) would lead us to expect for a satellite with given observed parameters.
description: 15 pages with 5 embedded figures; Astrophysical J in press Corrected error in names of authors
Additional file 1 of Development and optimisation of an intervention to increase the intention to act on health and health equity within the private sector of urban development: an evidence, theory and Person-Based Approach
Creators: name: Turnbull, Sophie L.
name: Jordan, Martha
name: Linnett, Rebecca J.
name: Black, Daniel
name: Knibb, Harry
name: Sharpe, Zoe
name: Bondy, Krista
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Supplementary Material 1.
Gas hydrate reservoirs of the deepwater Gulf of Mexico : characterization and consequences
Creators: name: Meazell, Patrick Kevin
name: 0000-0003-3179-6614
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: subject: Gas hydrate
subject: Methane hydrate
subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Deepwater sedimentology
subject: Pore pressure
subject: Mud volcanoes

description: Gas hydrate is found in cold, high-pressure, marine sediments around the world. Hydrate is important as a carbon sink, a natural geohazard, and a valuable economic resource. I use classic sedimentologic analyses, well log analysis, X-ray CT, seismic stratigraphy, pore pressure estimation, and basin modeling to elucidate the geologic conditions within highly-saturated, natural gas hydrate reservoirs in the deepwater northern Gulf of Mexico. I begin with the characterization of the channel-levee hydrate reservoir in GC-955 with grain size experiments, lithofacies mapping. Hydrate is found in thin-bedded layers of sandy silt that increase in net-to-gross and mean grainsize downhole. I use these results to interpret deposition of overbank sediment gravity flows from a deepwater bypass channel as it becomes increasingly confined by the levees it builds. Next, I use 3D seismic data to identify the relationship between similar channel-levee systems and venting seafloor gas mounds in the Terrebonne Basin of the Walker Ridge protraction area. I estimate the pore pressures, and show that below the hydrate phase boundary, free gas in the levees builds to a critical pressure and creates hydraulic fractures to the seafloor. I describe a conceptual model by which the venting process perturbs the hydrate stability zone, leading to further venting from shallower positions and the formation of distinct rows of gas mounds on the seafloor. Finally, I combine geomechanical properties of the GC-955 reservoir with the structure of the Terrebonne Basin system to show that the pressure estimates are well within reason. Together, these studies provide new insights into where hydrate is found, and how hydrate systems can both control and in turn be controlled by fluid flow, pressure, and stress in the deepwater environment
A pseudo-potential analog for zero-range photoassociation and Feshbach resonance
Creators: name: Moore, M. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A zero-range approach to atom-molecule coupling is developed in analogy to the Fermi-Huang pseudo-potential treatment of atom-atom interactions. It is shown by explicit comparison to an exactly-solvable finite-range model that replacing the molecular bound-state wavefunction with a regularized delta-function can reproduce the exact scattering amplitude in the long-wavelength limit. Using this approach we find an analytical solution to the two-channel Feshbach resonance problem for two atoms in a spherical harmonic trap.
Late cosmology of brane gases with a two-form field
Creators: name: Campos, Antonio
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the effects of a two-form field on the late-time dynamics of brane gas cosmologies. Assuming thermal equilibrium of winding states, we find that the presence of a form field allows a late stage of expansion of the Universe even when the winding degrees of freedom decay into a pressureless gas of string loops. Finally, we suggest to understand the dimensionality of the Universe not as a result of the thermal equilibrium condition but rather as a consequence of the symmetries of the geometry.
description: 6 pages, 2 figures