cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Uncertainty Quantification for Maxwell's Eigenproblem based on Isogeometric Analysis and Mode Tracking
Creators: name: Georg, Niklas
name: Ackermann, Wolfgang
name: Corno, Jacopo
name: Schöps, Sebastian
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Numerical Analysis (math.NA)
subject: Accelerator Physics (physics.acc-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: I.6.3; G.1.8; J.2
subject: 60H35, 65N25, 78M10

description: The electromagnetic field distribution as well as the resonating frequency of various modes in superconducting cavities used in particle accelerators for example are sensitive to small geometry deformations. The occurring variations are motivated by measurements of an available set of resonators from which we propose to extract a small number of relevant and independent deformations by using a truncated Karhunen-Loève expansion. The random deformations are used in an expressive uncertainty quantification workflow to determine the sensitivity of the eigenmodes. For the propagation of uncertainty, a stochastic collocation method based on sparse grids is employed. It requires the repeated solution of Maxwell's eigenvalue problem at predefined collocation points, i.e., for cavities with perturbed geometry. The main contribution of the paper is ensuring the consistency of the solution, i.e., matching the eigenpairs, among the various eigenvalue problems at the stochastic collocation points. To this end, a classical eigenvalue tracking technique is proposed that is based on homotopies between collocation points and a Newton-based eigenvalue solver. The approach can be efficiently parallelized while tracking the eigenpairs. In this paper, we propose the application of isogeometric analysis since it allows for the exact description of the geometrical domains with respect to common computer-aided design kernels, for a straightforward and convenient way of handling geometrical variations and smooth solutions.
title: Préface_Pour le soudeur et le braseur
Creators: name: AmateurS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Préface
description: ID_PARA_00723
Self-heating effect in nanoscale SOI Junctionless FinFET with different geometries
Creators: name: Atamuratov, A. E.
name: Jabbarova, B. O.
name: Khalilloev, M. M.
name: Yusupov, A.
name: Loureriro, A. G.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this work we study the self-heating (1) effect (SHE) in nanoscale Silicon on Insulator Junctionless (SOI JL) FinFET transistor with fi cross section in rectangular, trapeze and triangle form. The lattice temperature dependence on the channel length as well as on buried oxide thickness is considered. It is shown that for considered transistor structure the lattice temperature in the middle of the channel is lower than at lateral sides, near source and drain. Also, we have found at the same conditions the lattice temperature depends on shape of channel cross section too
Localization of elastic deformation in strongly anisotropic, porous, linear materials with periodic microstructures: exact solutions and dilute expansions
Creators: name: Willot, Francois
name: Pellegrini, Yves-Patrick
name: Castaneda, Pedro Ponte
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Exact solutions are derived for the problem of a two-dimensional, infinitely anisotropic, linear-elastic medium containing a periodic lattice of voids. The matrix material possesses either one infinitely soft, or one infinitely hard loading direction, which induces localized (singular) field configurations. The effective elastic moduli are computed as functions of the porosity in each case. Their dilute expansions feature half-integer powers of the porosity, which can be correlated to the localized field patterns. Statistical characterizations of the fields, such as their first moments and their histograms are provided, with particular emphasis on the singularities of the latter. The behavior of the system near the void close packing fraction is also investigated. The results of this work shed light on corresponding results for strongly nonlinear porous media, which have been obtained recently by means of the ``second-order'' homogenization method, and where the dilute estimates also exhibit fractional powers of the porosity.
description: 22 pages, 10 figures
Synergistic gas diffusion multilayer architecture based on the nanolaminate and inorganic-organic hybrid organic layer
Creators: name: Kwon, Jeong Hyun
name: Yongmin Jeon
name: Seungyeop Choi
name: Hyuncheol Kim
name: Choi, Kyung Cheol
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Al2O3 films have long been widely used as inorganic encapsulation or passivation layers. The Al2O3 single layer, however, exhibits not only a relatively low barrier performance but also poor environmental stability under harsh conditions due to its hydrolysis reaction with water vapor. Thus, to further improve its environmental reliability and barrier performance as a gas diffusion barrier (GDB), the GDB should be newly designed by forming a nanolaminate structure with ultra-thin sublayers. In addition, through the use of a multilayer based on nanolaminate/organic layers, the nanolaminate film can be effectively protected by a SiO2-inserted organic layer. In this study, alternately stacked nanolaminate/silane-based organic layers are proposed. The nanolaminate-based multilayer achieved a water vapor transmission rate (WVTR) of 5.94 × 10−5 g/m2/day under 60°C/90% accelerated conditions. In addition, after a bending test, the nanolaminate-based multilayer showed a WVTR increase by a magnitude of one order under a 0.63% bending strain. The proposed environmentally and mechanically stable hybrid thin-film encapsulation offers a strong potential for the realization of washable, wearable, or flexible displays in the future.
Link between the laws of geometrical optics and the radiative transfer equation in media with a spatially varying refractive index
Creators: name: Tualle, Jean-Michel
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We proposed in a previous paper [Opt. Commun. 228, 33 (2003)] a modified radiative transfer equation to describe radiative transfer in a medium with a spatially varying refractive index. The present paper is devoted to the demonstration that this equation perfectly works in the non-absorbing / non-scattering limit, what was contested by L. Martí-López and coworkers [Opt. Commun. 266, 44 (2006)]. The assertion that this equation would imply a zero divergence of the rays is also commented.
description: 14 pages, 3 figures
The Effective Potential of Electroweak Theory with Two Massless Higgs Doublets at Finite Temperature
Creators: name: Funakubo, K.
name: Kakuto, A.
name: Takenaga, K.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The effective potential of electroweak theory with two massless Higgs doublets at finite temperature is studied. We investigate phase structure and critical temperature in this model by numerical analysis without high-temperature expansion. The phase transition is found to be of first order. The critical temperature is shown to be relatively low for typical scalar masses. The free energy of the critical bubble is calculated with some approximations and we find that the bubble nucleation can occur at a temperature a little below the critical temperature. We also discuss the possibility of the electroweak baryogenesis.
description: 14 pages, 5 figures (included as compressed-uuencoded tar file), plain TeX( harvmac, epsf, tables ), KYUSHU-HET-10, SAGA-HE-50
Indirect Searches for Dark Matter with AMS-02
Creators: name: Brun, Pierre
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: AMS-02 is a multi-purpose spectrometer with superconducting magnet, and is designed for 3 years of data taking aboard the International Space Station. Its high performance regarding particle identification and energy measurement will allow performing indirect searches for dark matter (DM) in different channels simultaneously: gamma rays, positrons and antiprotons. AMS-02 sensitivity to those signals are presented and --provided the positron excess is due to DM signal-- it is shown that it allows to probe new physics models in detail. Its high sensitivity could even be a unique opportunity to reach the Majorana nature of the DM particle through final state polarization effects.
description: 5 pages, 2 figures
Probing resonant energy transfer in collisions of ammonia with Rydberg helium atoms by microwave spectroscopy
Creators: name: Zhelyazkova, V.
name: Hogan, S. D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present the results of experiments demonstrating the spectroscopic detection of Förster resonance energy transfer from NH$_3$ in the $X\,^1A_1$ ground electronic state to helium atoms in 1s$n$s\,$^3$S$_1$ Rydberg levels, where $n=37$ and $n=40$. For these values of $n$ the 1s$n$s\,$^3$S$_1\rightarrow$1s$n$p\,$^3$P$_J$ transitions in helium lie close to resonance with the ground-state inversion transitions in NH$_3$, and can be tuned through resonance using electric fields of less than 10~V/cm. In the experiments, energy transfer was detected by direct state-selective electric field ionization of the $^3$S$_1$ and $^3$P$_J$ Rydberg levels, and by monitoring the population of the $^3$D$_J$ levels following pulsed microwave transfer from the $^3$P$_J$ levels. Detection by microwave spectroscopic methods represents a highly state selective, low-background approach to probing the collisional energy transfer process and the environment in which the atom-molecule interactions occur. The experimentally observed electric-field dependence of the resonant energy transfer process, probed both by direct electric field ionization and by microwave transfer, agrees well with the results of calculations preformed using a simple theoretical model of the energy transfer process. For measurements performed in zero electric field with atoms prepared in the 1s40s\,$^3$S$_1$ level the transition from a regime in which a single energy transfer channel can be isolated for detection to one in which multiple collision channels begin to play a role has been identified as the NH$_3$ density was increased.
description: 10 pages, 8 figures
Cosmological Baryon Asymmetry in Supersymmetric Standard Models and Heavy Particle Effects
Creators: name: Inui, T.
name: Ichihara, T.
name: Mimura, Y.
name: Sakai, N.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Cosmological baryon asymmetry B is studied in supersymmetric standard models, assuming the electroweak reprocessing of B and L. Only when the soft supersymmetry breaking is taken into account, B is proportional to the primordial B-L in the supersymmetric standard models. The ratio $B/(B-L)$ is found to be about one percent less than the nonsupersymmetric case. Even if the primordial B-L vanishes, scalar-leptons can be more efficient than leptons to generate B provided that mixing angles $þ$ among scalar leptons satisfy $|þ| < 10^{-8} (T/{GeV})^{1/2}$.
description: 11 pages in LaTex, 3 PostScript figures included
Essays in life-cycle portfolio choice
Creators: name: Zhang, Yuxin
Publisher: name: Imperial College London
Year: 2017

description: This dissertation presents three essays in life-cycle portfolio choice. Chapter 1 solves for optimal consumption and portfolio choice in a life-cycle model with short sales and borrowing constraints, undiversifiable labor income risk and a predictable, time-varying, equity premium and show that the investor pursues aggressive market timing strategies. Importantly, it shows that, in the presence of stock market predictability, the conventional financial advice of reducing stock market exposure as retirement approaches is correct on average, but ignoring changing market information can lead to substantial welfare losses. Therefore, enhanced target-date funds (ETDFs) that condition on expected equity premia increase welfare relative to target-date funds (TDFs). Out-of-sample analysis supports these conclusions. \newline Chapter 2 studies the effect of observable predictors that imperfectly predict conditional expected stock returns on optimal life-cycle consumption and portfolio choice in the presence of undiversifiable labor income risk. Investors filter the unobservable expected stock returns from realized predictive variables and stock returns. Young stockholders hold more conservative portfolios, better matching empirical observations, than models assuming a predictor perfectly delivering the conditional expected stock return or models assuming i.i.d. stock returns. Welfare losses from ignoring imperfect predictability can be substantial. \newline Chapter 3 uses different stock return predictors at quarterly frequency to solve for optimal consumption and portfolio choice in a life-cycle model with short-sales and borrowing constraints and undiversifiable labor income risk. Both wealth accumulation and asset allocation look similar qualitatively to their i.i.d. unconditional averages, but are quantitatively different and depend on predictors in different ways. Therefore, enhanced target-date funds (ETDFs) that condition saving and portfolio choice on predictor variables can lead to substantial welfare gains.
title: Rapport du Groupe d'experts sur les modalités de prescription de la mesure de la charge virale (ARN VIH plasmatique) chez les personnes atteintes par le VIH et ses conséquences en matière de suivi et de stratégie thérapeutique
Creators: name: Leibowitch, Jacques
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Précédé d'une lettre de la Mission SIDA du Ministère de la Santé adressée à F. Brun-Vezinet et J. Dormont.
description: Source: http://www.calames.abes.fr/pub/ms/Calames-20193111231432424
description: created: start=1975;end=2018
Parametric amplification and squeezing with an ac- and dc-voltage biased superconducting junction
Creators: name: Mendes, Udson C.
name: Jezouin, Sébastien
name: Joyez, Philippe
name: Reulet, Bertrand
name: Blais, Alexandre
name: Portier, Fabien
name: Mora, Christophe
name: Altimiras, Carles
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically investigate a near-quantum-limited parametric amplifier based on the nonlinear dynamics of quasiparticles flowing through a superconducting-insulator-superconducting junction. Photon-assisted tunneling, resulting from the combination of dc- and ac-voltage bias, gives rise to a strong parametric interaction for the electromagnetic modes reflected by the junction coupled to a transmission line. We show phase-sensitive and phase-preserving amplification, together with single- and two-mode squeezing. For an aluminum junction pumped at twice the center frequency, $ω_0/2π=6$~GHz, we predict narrow-band phase-sensitive amplification of microwaves signals to more than 20 dB, and broadband phase-preserving amplification of 20 dB over a 1.2 GHz 3-dB bandwidth. We also predict single- and two-mode squeezing reaching more than -12 dB over 5.3 GHz 3-dB bandwidth. Moreover, with a simple impedance matching circuit, we demonstrate 3 dB bandwidth reaching 4.3 GHz for 20 dB of gain. A key feature of the device is that its performance can be controlled in-situ with the applied dc- and ac-voltage biases.
description: Accepted for publication at the Physical Review Applied. 12 pages and 9 figures
On the weak-hash metric for boundedly finite integer-valued measures
Creators: name: Morariu-Patrichi, Maxime
Publisher: name: arXiv
Year: 2018
Subjects: subject: Probability (math.PR)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 28A33, 60G55

description: It is known that the space of boundedly finite integer-valued measures on a complete separable metric space becomes itself a complete separable metric space when endowed with the weak-hash metric. It is also known that convergence under this topology can be characterised in a way that is similar to the weak convergence of totally finite measures. However, the original proofs of these two fundamental results assume that a certain term is monotonic, which is not the case as we give a counterexample. We manage to clarify these original proofs by addressing specifically the parts that rely on this assumption and finding alternative arguments.
description: Minor typos corrected, Bulletin of the Australian Mathematical Society, 2018
Signal mixture estimation for degenerate heavy Higgses using a deep neural network
Creators: name: Kvellestad, Anders
name: Maeland, Steffen
name: Strümke, Inga
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: If a new signal is established in future LHC data, a next question will be to determine the signal composition, in particular whether the signal is due to multiple near-degenerate states. We investigate the performance of a deep learning approach to signal mixture estimation for the challenging scenario of a ditau signal coming from a pair of degenerate Higgs bosons of opposite CP charge. This constitutes a parameter estimation problem for a mixture model with highly overlapping features. We use an unbinned maximum likelihood fit to a neural network output, and compare the results to mixture estimation via a fit to a single kinematic variable. For our benchmark scenarios we find a ~20% improvement in the estimate uncertainty.
description: v2, 12 pages, 7 figures, published in EPJC
Alan Gewirth and the Moral Law
Creators: name: Hooker, John N.
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Alan Gewirth constructed a deduction of moral obligation that is inspired by Kantian principles. He argued that any agent is committed by his very agency to acknowledging a universal right to freedom and basic well-being. The deduction is analyzed here step by step. It is found to contain much that is right but a fatal flaw as well. It is suggested how Gewirth's insights might be salvaged to establish obligations that are contingent on action choices.
The average kinetic energy density of Cooper pairs above $T_c$ in ${\rm YBa_2Cu_3O_{7-x}}$, ${\rm Bi_2Sr_2CaCu_2O_{8+δ}}$, and ${\rm Nb}$
Creators: name: Salem-Sugui, S.
name: Doria, Mauro M.
name: Alvarenga, A. D.
name: Vieira, V. M.
name: Farinas, P. F.
name: Sinnecker, J. P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have obtained isofield curves for the square root of the average kinetic energy density of the superconducting state for three single crystals of underdoped $YBa_2Cu_3O_{7-x}$, an optimally doped single crystal of $Bi_2Sr_2CaCu_2O_{8+δ}$, and Nb. These curves, determined from isofield magnetization versus temperature measurements and the virial theorem of superconductivity, probe the order parameter amplitude near the upper critical field. The striking differences between the Nb and the high-$T_c$ curves clearly indicate for the latter cases the presence of a unique superconducting condensate below and above $T_c$.
title: ADCO, Quatrième cartulaire de Saint-Etienne de Dijon (XIIIe siècle), Cart. 36 (G 128), 31 folios, f. 0028
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/2009
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Quatrième cartulaire de Saint-Etienne de Dijon (XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 36 (G 128), 31 folios, f. 0028, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Quatrième cartulaire de Saint-Etienne de Dijon (XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 36 (G 128), 31 folios, f. 0028, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Extreme waves in intermediate and shallow water depths
Creators: name: De Lutio, Livio
Publisher: name: Imperial College London
Year: 2016

description: This work presents two new sets of laboratory observations undertaken in a two dimensional wave flume. The objective of the first laboratory experiment was to simulate realistic ocean spectra evolving over a mild bed slope (m = 1/100); the chosen sea states allowing a systematic investigation of the role of local water depth, spectral peak period and significant wave height. A number of wave events propagating in different water depths were selected as part of the second set of laboratory observations. Using Particle Image Velocimetry (PIV) the kinematics underneath the selected wave crests were recorded. This thesis investigates the statistical distribution of both the wave height (H) and the wave crest elevation (ηc). Following comparisons across a wide parameter range, the crest height distributions are shown to be in poor agreement with the Forristall (2000) and Tayfun (1980) distributions as these do not model effects beyond second order and do not consider wave breaking. In contrast, the wave height distributions in deep and intermediate water depths (kpd> 0.72) are shown to be in reasonable agreement with the Mendez (2004) distribution. Finally, in shallow water depths (kpd ≤ 0.72), none of the existing distributions provide a good description of the measured data. The same water surface elevation data is used to investigate the importance of sea state and local parameters in determining the largest and steepest breaking waves and the success of a number of commonly used models to provide accurate maximum possible wave criteria. Detailed comparisons show that local wave parameters and a wave number based upon an up-crossing analysis provide the best description of the limiting conditions. The Goda (1970) criterion is found to be the most accurate across the broadest range of effective water depths. However, in very shallow water depths none of the breaking criteria are accurate as the laboratory data shows very large wave height to water depth ratios, (H/d)max = 1.3. The kinematic measurements are used to investigate the influence of local wave parameters on the horizontal velocity underneath the wave crest and to assess the ability of commonly used wave models to reproduce the measured velocities. This investigation showed that the steady wave theories could only reproduce the horizontal velocities associated with weakly nonlinear waves. The second-order random wave theory proved very hard to apply as a result of the difficulties in finding an adequate linear spectral input. Conversely, a modified Wheeler empirical model is shown to be accurate for large waves in a broad range of effective water depths.
Correlation methods for the analysis of X-ray polarimetric signals
Creators: name: Massaro, Enrico
name: Fabiani, Sergio
name: Campana, Riccardo
name: Costa, Enrico
name: Del Monte, Ettore
name: Muleri, Fabio
name: Soffitta, Paolo
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: X-ray polarimetric measurements are based on studying the distribution of the directions of scattered photons or photoelectrons and on the search of a sinusoidal modulation with a period of π. We developed two tools for investigating these angular distributions based on the correlations between counts in phase bins separated by fixed phase distances. In one case we use the correlation between data separated by half of the bin number (one period) which is expected to give a linear pattern. In the other case, the scatter plot obtained by shifting by 1/8 of the bin number (1/4 of period) transforms the sinusoid in a circular pattern whose radius is equal to the amplitude of the modulation. For unpolarized radiation these plots are reduced to a random point distribution centred at the mean count level. This new methods provide direct visual and simple statistical tools for evaluating the quality of polarization measurements and for estimating the polarization parameters. Furthermore they are useful for investigating distortions due to systematic effects.
Probing the submillimetre number counts at f(850um) < 2mJy
Creators: name: Knudsen, K. K.
name: van der Werf, P. P.
name: Kneib, J. -P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have conducted a submillimetre mapping survey of faint, gravitationally lensed sources, where we have targeted twelve galaxy clusters and additionally the NTT Deep Field. The total area surveyed is 71.5 arcmin^2 in the image plane; correcting for gravitational lensing, the total area surveyed is 40 arcmin^2 in the source plane for a typical source redshift z=2.5. In the deepest maps, an image plane depth of 1sigma r.m.s. ~0.8 mJy is reached. This survey is the largest survey to date to reach such depths. In total 59 sources were detected, including three multiply-imaged sources. The gravitational lensing makes it possible to detect sources with flux density below the blank field confusion limit. The lensing corrected fluxes ranges from 0.11 mJy to 19 mJy. After correcting for multiplicity there are 10 sources with fluxes <2 mJy of which 7 have sub-mJy fluxes, doubling the number of such sources known. Number counts are determined below the confusion limit. At 1 mJy the integrated number count is ~10^4 deg^-2, and at 0.5 mJy it is ~2x10^4 deg^-2. Based on the number counts, at a source plan flux limit of 0.1 mJy, essentially all of the 850um background emission has been resolved. The dominant contribution (> 50 per cent) to the integrated background arises from sources with fluxes S(850) between 0.4 and 2.5 mJy, while the bright sources S(850) > 6mJy contribute only 10 per cent.
description: 19 pages, 10 figures. Accepted for publication in MNRAS
Design of wide beam flooring systems
Creators: name: Abdelsalam, Mohemmed
Publisher: name: Imperial College London
Year: 2017

description: The thesis addresses the design of reinforced concrete wide beam solid slabs for which international design standards like BS8110, EC2 and ACI318 provide no guidance. Currently, the only commonly available UK guidance on the design of wide beam slabs is provided by The Concrete Centre (TCC). The TCC design method assumes that support moments, about an axis parallel to the direction of wide beam span, are uniformly distributed along beams. The TCC approach is questionable since elastic finite element analysis shows the transverse bending moment distribution to be far from uniform and sharply peaked near columns. The research was motivated by concern that crack widths could be excessive in wide beam slabs designed for uniformly distributed transverse moments. Nonlinear finite element analysis (NLFEA) is used to investigate the influence on structural response of varying the distribution of transverse flexural reinforcement along wide beams. Uniform and banded transverse reinforcement arrangements are considered. The banded arrangement is based on the elastic moment field. The influence of compressive membrane action (CMA) on flexural resistance is investigated. The thesis also considers the influence of transverse reinforcement distribution, one-way loading from the beam and slab continuity on punching resistance at internal and edge columns. Punching resistance is investigated with NLFEA using solid elements as well as EC2 and the critical shear crack theory as implemented in fib MC2010. A design method is developed for wide beam slabs on the basis of parametric studies. It is proposed that transverse reinforcement should be provided in two bands depicted “column band” and “span band”. The width of the column band is shown to vary linearly with wide beam span. The proposed procedure for banding transverse reinforcement is shown to effectively reduce steel strains and, hence, crack widths as well as enhance punching shear resistance.
Air pollution, climate, and home heating: their effects on U.S. mortality rates
Creators: name: Lave, Lester B.
name: Seskin, Eugene P.
Publisher: name: Carnegie Mellon University
Year: 1984
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: The aim of this report is to determine whether changes in air pollution have an effect on health. Climate and home heating variables are included to see whether they may be involved. These studies indicate a close association between mortality rates and air pollution and lead to the conclusion that mortality rates could be lowered by abating pollution. Estimates of economic benefits from improved health are discussed.
Numerical modelling of earthquake induced liquefaction under irregular and multi-directional loading
Creators: name: Tsaparli, Vasiliki
Publisher: name: Imperial College London
Year: 2017

description: This PhD thesis details the numerical investigation of earthquake-induced liquefaction using state-of-the-art research tools implemented in the in-house Imperial College Finite Element Program (ICFEP). The study draws particular emphasis on the role of the multi-directional and irregular nature of the seismic motion on liquefaction, aiming to enable better risk characterisation in engineering practice. The first part focusses on the role of the vertical seismic motion on sand liquefaction, which is largely neglected in design standards. The major contribution relates to a novel concept of liquefaction triggering due to the vertical ground motion, the impact of which was catastrophic during the 2010-2011 Canterbury Earthquake Sequence in New Zealand. Energy principles are adopted in P-wave propagation to aid the interpretation of the physical mechanism. The performance of two time-integration schemes are also compared to provide guidance on numerical geotechnical earthquake engineering problems involving compressional waves. The second part concerns suggested modifications to the constitutive model for sand to mitigate limitations identified in the first part in terms of the simulated undrained cyclic strength. The modified formulation is presented and calibrated based on published element testing and its performance is thoroughly assessed. The third part investigates the applicability of the Palmgren-Miner hypothesis in liquefaction evaluation through the equivalent number of stress cycles concept. The latter is directly applicable to the magnitude scaling factors used in liquefaction assessments, but also to the laboratory evaluated cyclic strength. A procedure to test this numerically is outlined. Based on the conclusions, guidelines for improved use are discussed. The final part of this thesis models a case study. The Mw 6.2 22nd February 2011 Christchurch seismic event in New Zealand was chosen for the analyses, as it presents a well-documented case. A thorough discussion on the inferred geotechnical parameters and on the calibration of the constitutive models is made. The selection of representative input ground motions is also presented in detail. The numerical predictions are compared against the monitoring and field data, but also against the predictions of the simplified liquefaction procedure.
Novel glycomic approaches to unravel protein- carbohydrate interactions in complement-associated kidney disease
Creators: name: Gyapon Quast, Frederick
Publisher: name: Imperial College London
Year: 2016

description: The complement system is an integral component of innate immunity. Complement activation is tightly regulated to restrict effector functions to pathogens or altered host tissues. Complement-associated diseases are characterised by inappropriate activation on host surfaces, usually due to impaired regulation. Factor H (FH) is the major negative regulator of the alternative complement pathway. FH inhibits complement activation in plasma and on host surfaces. The FH protein family includes five additional proteins, termed factor H-related (FHR) proteins. FHRs compete with FH for binding to complement but, unlike FH, do not regulate complement activation. Consequently, the balance between FH and FHRs binding determines the degree of surface complement activation. My thesis examined the hypothesis that the interactions of both FH and FHRs with surface complement are influenced by additional interactions with surface carbohydrates. I explored the interactions of FHRs and FH to sialoglycoconjugates and glycosaminoglycans (GAGs) using microtiter plate-based binding assays and neoglycolipid-based microarrays. My results showed overlapping specificities of the FHRs and FH for binding to GAGs, and that the interactions correlated with the degree of GAG sulphation. Inhibition of FHR and FH surface binding by soluble GAGs demonstrated differences in affinities and the mode of binding among FHRs and FH. The binding profiles of the FHRs and FH to sialo-glycoconjugates display differential interaction based on the sequence and linkage of analysed sialo-glycoconjugates. FHRs displayed a binding preference to α2-3-sialyl over α2-6-sialyl glycans, whereas FH bound most strongly to a disialyl glycan with both α2-3 and α2-6-linked sialic acid. In a surface C3b-binding competition assay, the addition of surface HS altered the ratio of FH/FHR binding, displaying less surface bound FH. My work has elucidated the carbohydrate ligands for FH and FHRs and provided insight into the molecular basis of surface discrimination by this protein family.
Comment on ``Neutrino masses and mixing angles in a predictive theory of fermion masses''
Creators: name: Lavoura, L.
name: Silva, João P.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the extension of the Dimopoulos--Hall--Raby model of the fermion mass matrices to the neutrino sector, there is an entry in the up-quark and neutrino Dirac mass matrices which can be assumed to arise from the Yukawa coupling of a {\bf 120}, instead of a {\bf 10} or a {\bf 126}, of SO(10). Although this assumption leads to an extra undetermined complex parameter in the model, the resulting lepton mixing matrix exhibits the remarkable feature that the $ ν_τ $ does not mix with the other two neutrinos. Making a reasonable assumption about the extra parameter, we are able to fit the large-mixing-angle MSW solution of the solar-neutrino problem, and we obtain $ m_{ν_τ} \sim 10 $ eV, the right mass range to close the Universe. Other possibilities for explaining the solar-neutrino deficit are also discussed.
description: standard LATEX, 6 pages, 2 figures available from the authors, report No. CMU-HEP93-20 and DOE-ER/40682-45
title: ADCO, Grènetier de Cîteaux : comptes (1497-1504) (11 H 1172), f. 00673
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
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: comptes
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Grènetier de Cîteaux : comptes (1497-1504), Archives départementales de la Côte-d'Or, (11 H 1172). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1497-1504), Archives départementales de la Côte-d'Or, (11 H 1172), f. 00673, 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
The biophysical effects of nanosized particles in contact with alveolar lung surfactant
Creators: name: Miguel Diez, Maria
Publisher: name: Imperial College London
Year: 2015

description: The effects of engineered nanoparticles (NPs) on the biophysical properties of lung surfactant is a topic of increasing interest due to the rapid expansion of nanotechnologies and the potential for human exposure to airborne NPs. Langmuir monolayers of dipalmitoylphosphatidylcholine (DPPC), the major component of the lung surfactant, at the air/liquid interface represent a good model to investigate the lung surfactant behaviour and its interactions with NPs. Here, the effects of CeO2 and Carbon Black (CB) NPs on DPPC monolayers were investigated by the analysis of surface pressure-Mma (Π-Mma) compression isotherms recorded at experimental conditions similar to those found in human lungs using a Langmuir-Wilhelmy Balance (LWB) in parallel with the visualisation of the interface using SEM and ToF-SIMS. In previous studies, NPs were deposited from liquid suspensions, usually for ease of application. In this work, a method for aerosol NP deposition onto DPPC monolayers was developed and compared with depositions from liquid suspensions. To date, there are no other studies of NP deposition onto a surfactant monolayer in aerosol form using a LWB. CeO2 NPs were first suspended in chloroform and deposited onto a DPPC monolayer located at the air/PBS interface, which had no effect on the Π-Mma isotherm for any of the NP mass deposited due to the instability of CeO2 NPs in this medium which rapidly agglomerated to form large, dense clusters that eventually detached from the interface and sedimented into the subphase hence, only small CeO2 NPs remained at the surface at levels too low to affect the isotherm. In the second deposition method, NPs were mixed with DPPC in chloroform and deposited onto a clean PBS subphase. The coating of the NPs with DPPC increased the stability of the NPs in PBS. SEM and ToF-SIMS images showed that large agglomerates were present at the interface that had a remarkable effect on the Π-Mma isotherms by shifting them towards larger areas with NP mass deposited. Thirdly, CeO2 NPs in aerosol form were deposited onto a DPPC monolayer. Results showed that the presence of agglomerates of a similar size homogeneously spread across the surface during the compression of the interface improved the film containment causing an increase in the slope of the isotherm starting at a Π ~ 30 mN/m and in the collapse Π with NP mass deposited. Aerosolised CB NPs were also distributed uniformly across the surface and improved the stability of the monolayer in a similar way to aerosolised CeO2 NPs. These experiments showed that the NP deposition method onto the air/PBS interface differentially affected the DPPC isotherm and that the degree of NP agglomeration is probably one of the most important determining factors of the NP effects on the DPPC isotherm. It is concluded that the deposition of NPs in aerosol form is the most appropriate experimental model to study inhaled NP interactions with lung surfactant using a LWB.
On the uniqueness for the spatially homogeneous Boltzmann equation with a strong angular singularity
Creators: name: Fournier, Nicolas
name: Guérin, Hélène
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 76P05

description: We prove an inequality on the Wasserstein distance with quadratic cost between two solutions of the spatially homogeneous Boltzmann equation without angular cutoff, from which we deduce some uniqueness results. In particular, we obtain a local (in time) well-posedness result in the case of (possibly very) soft potentials. A global well-posedeness result is shown for all regularized hard and soft potentials without angular cutoff. Our uniqueness result seems to be the first one applying to a strong angular singularity, except in the special case of Maxwell molecules. Our proof relies on the ideas of Tanaka: we give a probabilistic interpretation of the Boltzmann equation in terms of a stochastic process. Then we show how to couple two such processes started with two different initial conditions, in such a way that they almost surely remain close to each other.
Decoding-Energy-Rate-Distortion Optimization for Video Coding
Creators: name: Herglotz, Christian
name: Heindel, Andreas
name: Kaup, André
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper presents a method for generating coded video bit streams requiring less decoding energy than conventionally coded bit streams. To this end, we propose extending the standard rate-distortion optimization approach to also consider the decoding energy. In the encoder, the decoding energy is estimated during runtime using a feature-based energy model. These energy estimates are then used to calculate decoding-energy-rate-distortion costs that are minimized by the encoder. This ultimately leads to optimal trade-offs between these three parameters. Therefore, we introduce the mathematical theory for describing decoding-energy-rate-distortion optimization and the proposed encoder algorithm is explained in detail. For rate-energy control, a new encoder parameter is introduced. Finally, measurements of the software decoding process for HEVC-coded bit streams are performed. Results show that this approach can lead to up to 30% of decoding energy reduction at a constant visual objective quality when accepting a bitrate increase at the same order of magnitude.
description: 12 pages, 10 figures
Air Pollution and Human Health
Creators: name: Lave, Lester B.
name: Seskin, Eugene P.
Publisher: name: Carnegie Mellon University
Year: 1975
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Air pollution is a problem of growing importance; public interest seems to have risen faster than the level of pollution in recent years. Presidential messages and news stories have reflected the opinion of scientists and civic leaders that pollution must be abated. This concern has manifested itself in tightened local ordinances (and, more importantly, in increased enforcement of existing ordinances), in federal legislation, and in extensive research to find ways of controlling the emission of pollutants from automobiles and smokestacks. Pollutants are natural constituents of the air. Even without man' and his technology, plants, animals, and natural activity would cause some pollution. For example, animals vent carbon dioxide, volcanic action produces sulfur oxides, and wind movement insures that there will be suspended particulates; there is no possibility of removing all pollution from the air. Instead, the problem. is one of balancing the need of polluters to vent residuals against the damage suffered by society as a result of the increased pollution (1) . To find an optimum level, we must know the marginal costs and marginal benefits associated with abatement. This article is focused on measuring one aspect of the benefit of pollution abatement.
Analysis of anisotropy crossover due to oxygen in Pt/Co/MOx trilayer
Creators: name: Manchon, Aurélien
name: Ducruet, Clarisse
name: Lombard, Lucien
name: Auffret, Stéphane
name: Rodmacq, Bernard
name: Dieny, Bernard
name: Pizzini, Stefania
name: Vogel, Jan
name: Uhlir, Vojtech
name: Hochstrasser, Michael
name: Panaccione, Giancarlo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Extraordinary Hall effect and X-ray spectroscopy measurements have been performed on a series of Pt/Co/MOx trilayers (M=Al, Mg, Ta...) in order to investigate the role of oxidation in the onset of perpendicular magnetic anisotropy at the Co/MOx interface. It is observed that varying the oxidation time modifies the magnetic properties of the Co layer, inducing a magnetic anisotropy crossover from in-plane to out-of-plane. We focused on the influence of plasma oxidation on Pt/Co/AlOx perpendicular magnetic anisotropy. The interfacial electronic structure is analyzed via X-ray photoelectron spectroscopy measurements. It is shown that the maximum of out-of-plane magnetic anisotropy corresponds to the appearance of a significant density of Co-O bondings at the Co/AlOx interface.
RTAB-Map as an Open-Source Lidar and Visual SLAM Library for Large-Scale and Long-Term Online Operation
Creators: name: Labbé, Mathieu
name: Michaud, François
Publisher: name: arXiv
Year: 2024
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Distributed as an open source library since 2013, RTAB-Map started as an appearance-based loop closure detection approach with memory management to deal with large-scale and long-term online operation. It then grew to implement Simultaneous Localization and Mapping (SLAM) on various robots and mobile platforms. As each application brings its own set of contraints on sensors, processing capabilities and locomotion, it raises the question of which SLAM approach is the most appropriate to use in terms of cost, accuracy, computation power and ease of integration. Since most of SLAM approaches are either visual or lidar-based, comparison is difficult. Therefore, we decided to extend RTAB-Map to support both visual and lidar SLAM, providing in one package a tool allowing users to implement and compare a variety of 3D and 2D solutions for a wide range of applications with different robots and sensors. This paper presents this extended version of RTAB-Map and its use in comparing, both quantitatively and qualitatively, a large selection of popular real-world datasets (e.g., KITTI, EuRoC, TUM RGB-D, MIT Stata Center on PR2 robot), outlining strengths and limitations of visual and lidar SLAM configurations from a practical perspective for autonomous navigation applications.
description: 40 pages, 19 figures