cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Topology optimization of thermal problems in a nonsmooth variational setting: closed-form optimality criteria
Creators: name: Yago, Daniel
name: Cante, Juan
name: Lloberas-Valls, Oriol
name: Oliver, Javier
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: This paper extends the nonsmooth Relaxed Variational Approach (RVA) to topology optimization, proposed by the authors in a preceding work, to the solution of thermal optimization problems. First, the RVA topology optimization method is briefly discussed and, then, it is applied to a set of representative problems in which the thermal compliance, the deviation of the heat flux from a given field and the average temperature are minimized. For each optimization problem, the relaxed topological derivative and the corresponding adjoint equations are presented. This set of expressions are then discretized in the context of the finite element method and used in the optimization algorithm to update the characteristic function. Finally, some representative (3D) thermal topology optimization examples are presented to asses the performance of the proposed method and the Relaxed Variational Approach solutions are compared with the ones obtained with the level set method in terms of the cost function, the topology design and the computational cost.
RAM Feriedagpenge-udbetaling (FD)
Creators: Arbejdsdirektoratet
Arbejdsmarkedsstyrelsen
Styrelsen for Arbejdsmarked og Rekruttering
Publisher: name: Rigsarkivet
Year: 2022

description: Jf. lovbekendtgørelse nr. 225 af 20. marts 2018 indberetter a-kasser udbetalinger af feriedagpenge. RAM ("Register for Arbejdsmarkedet") er et fagsystem i Styrelsen for Arbejdsmarked og Rekruttering, der indeholder indberetninger fra arbejdsløshedskasserne vedr. udbetaling af dagpenge, feriedagpenge, efterløn og beskæftigelsesindsats mv. Formålet med RAM er at danne grundlag for udarbejdelse af statistikker, analyser mv. om arbejdsmarkedet og ændringer i forhold vedrørende arbejdsmarkedet.
Neighborliness of Marginal Polytopes
Creators: name: Kahle, Thomas
Publisher: name: arXiv
Year: 2008
Subjects: subject: Combinatorics (math.CO)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 52B05, 60C05

description: A neighborliness property of marginal polytopes of hierarchical models, depending on the cardinality of the smallest non-face of the underlying simplicial complex, is shown. The case of binary variables is studied explicitly, then the general case is reduced to the binary case. A Markov basis for binary hierarchical models whose simplicial complexes is the complement of an interval is given.
description: 9 pages
RAM Udstedelse af efterlønsbevis (EB)
Creators: Arbejdsdirektoratet
Arbejdsmarkedsstyrelsen
Styrelsen for Arbejdsmarked og Rekruttering
Publisher: name: Rigsarkivet
Year: 2022

description: Jf. lovbekendtgørelse nr. 225 af 20. marts 2018 indberetter a-kasser udstedelser af efterlønsbeviser. RAM ("Register for Arbejdsmarkedet") er et fagsystem i Styrelsen for Arbejdsmarked og Rekruttering, der indeholder indberetninger fra arbejdsløshedskasserne vedr. udbetaling af dagpenge, feriedagpenge, efterløn og beskæftigelsesindsats mv. Formålet med RAM er at danne grundlag for udarbejdelse af statistikker, analyser mv. om arbejdsmarkedet og ændringer i forhold vedrørende arbejdsmarkedet.
Exponentiation of the leading eikonal with spin
Creators: name: Haddad, Kays
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We initiate a study into the eikonal exponentiation of the amplitude in impact-parameter space when spinning particles are involved in the scattering. Considering the gravitational scattering of two spin-1/2 particles, we demonstrate that the leading eikonal exhibits exponentiation up to $\mathcal{O}(G^{2})$ in the limit where the spacetime dimension $D\rightarrow4$. We find this to hold for general spin orientations. The exponentiation of the leading eikonal including spin is understood through the unitarity properties at leading order in $\hbar$ of momentum-space amplitudes, allowing the extension of our results to arbitrary-spin scattering.
description: 12 pages + appendices
Lévy-type diffusion on one-dimensional directed Cantor Graphs
Creators: name: Burioni, R.
name: Caniparoli, L.
name: Lepri, S.
name: Vezzani, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Lévy-type walks with correlated jumps, induced by the topology of the medium, are studied on a class of one-dimensional deterministic graphs built from generalized Cantor and Smith-Volterra-Cantor sets. The particle performs a standard random walk on the sets but is also allowed to move ballistically throughout the empty regions. Using scaling relations and the mapping onto the electric network problem, we obtain the exact values of the scaling exponents for the asymptotic return probability, the resistivity and the mean square displacement as a function of the topological parameters of the sets. Interestingly, the systems undergoes a transition from superdiffusive to diffusive behavior as a function of the filling of the fractal. The deterministic topology also allows us to discuss the importance of the choice of the initial condition. In particular, we demonstrate that local and average measurements can display different asymptotic behavior. The analytic results are compared with the numerical solution of the master equation of the process.
description: 9 pages, 9 figures
Heat flow in consumable electrode remelted ingots
Creators: name: Ballantyne, Alexander Stewart
Publisher: name: University of British Columbia
Year: 2010

description: A computer model based upon the alternating direction implicit finite difference method has been developed for the prediction of the thermal field in cylindrical consumable electrode remelted ingots. The model simulates both the solidification and ingot growth processes, and incorporates temperature-dependent thermophysical properties and boundary conditions. An accompanying model has also been developed for the slag in the electroslag remelting process. In order to obtain data for the confirmation of model results, heat flow measurements have been performed on a laboratory ESR machine. Comparisons have been made between model predictions and experimental results for both laboratory and industrial machines. These comparisons have generally involved the predicted and measured pool profiles since this is the easiest experimental result to obtain. On this basis, the model is about 90% accurate for most remelting situations. The one notable exception is vacuum arc remelted ingots produced at high melt rates. It is postulated that the high direct currents associated with these operations result in considerable pool movement. This increases the effective thermal conductivity in the liquid pool and thereby increases the actual pool depth to values substantially greater than the predicted depth. Several examples have been given to illustrate the application of the model as a design tool. Possible methods of maintaining base temperatures to prevent thermal cracking have been considered. Important factors affecting local solidification times have been examined and attempts have been made to predict the resulting structure as revealed by the secondary dendrite arm spacing. The model has been used to show how different melting cycles may be compared in order to arrive at the optimum balance between melting rate and length of hot top cycle. And, finally, attempts have been made to predict the combination of maximum permissible melt rate and ingot size in order to produce an ingot of acceptable quality.
Ciudades resilientes al cambio climático: un llamado para aterrizar prácticas ambientales sostenibles en los POT
Creators: name: Vera Solano, Javier Augusto
Publisher: name: Zenodo
Year: 2025
Subjects: Planeación
Expansi

description: El Plan de Ordenamiento Territorial (POT) es la principal herramienta para que las ciudades y regiones del paísorganicen sus planes territoriales, tal como se define en la Ley 388 de 1997. Algunos de los temas que se abordan en los POT incluyen: acceso a servicios públicos, vivienda, vías y servicios públicos. El ordenamiento territorial permite tomar decisiones que aporten a la calidad de vida de los individuos que viven en ese territorio. La mayoría de los POT se formalizaron a principios de la década pasada con base en la información y recursos de los gobiernos locales de ese momento (Ministerio de Vivienda, Ciudad y Territorio) y, aunque desde 1938 se ha hablado de cambio climático (Mira Bohórquez & Muñoz Fonnegra, 2023), es solo a partir del año 2000 que el tema ha tenido un mayor apogeo, siendo así que la mayoría de los POT del país no conciben este tema aún.
Rapidity dependent $K/π$ ratios in Au+Au collisions at $\sqrt{s_{NN}}$ = 62.4 GeV
Creators: name: Arsene, I. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We report on measurements of identified particle yields from Au-Au collisions at $\sqrt{s_{NN}} = 62.4$ GeV made with the BRAHMS spectrometer. Here we will concentrate on the charged $K/π$ ratios as function of rapidity and baryo-chemical potential. We find that the $K/π$ ratios measured at different rapidities in the analysed dataset have a common dependence with the same ratios measured in mid-rapidity at SPS energies when plotted as function of the $\bar{p}/p$ ratio. The theoretical models used for comparison, UrQMD and AMPT, give a reasonable description of the particle yields at mid-rapidity but fail to do so for the $K/π$ ratios at forward rapidity.
description: Proceeding to the parralel talk given at the Quark Matter 2008 conference held in Jaipur, India, 4-10 february 2008. To be published in J.Phys.G
RAM Overgang til efterløn (EO)
Creators: Arbejdsdirektoratet
Arbejdsmarkedsstyrelsen
Styrelsen for Arbejdsmarked og Rekruttering
Publisher: name: Rigsarkivet
Year: 2022

description: Jf. lovbekendtgørelse nr. 225 af 20. marts 2018 indberetter a-kasser overgange til efterløn. RAM ("Register for Arbejdsmarkedet") er et fagsystem i Styrelsen for Arbejdsmarked og Rekruttering, der indeholder indberetninger fra arbejdsløshedskasserne vedr. udbetaling af dagpenge, feriedagpenge, efterløn og beskæftigelsesindsats mv. Formålet med RAM er at danne grundlag for udarbejdelse af statistikker, analyser mv. om arbejdsmarkedet og ændringer i forhold vedrørende arbejdsmarkedet.
Convergence of eigenvalues for a highly non-self-adjoint differential operator
Creators: name: Davies, E. B.
name: Weir, John
Publisher: name: arXiv
Year: 2008
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 34L05 (Primary) 47E05 (Secondary)

description: In this paper we study a family of operators dependent on a small parameter $ε> 0$, which arise in a problem in fluid mechanics. We show that the spectra of these operators converge to N as $ε\to 0$, even though, for fixed $ε> 0$, the eigenvalue asymptotics are quadratic.
description: 16 pages
Fracture toughness of pipe line steels
Creators: name: Maiti, Ranen
Publisher: name: University of British Columbia
Year: 2010

description: The fracture toughness of two acicular ferrite, HSLA pipeline steels was investigated utilising the linear elastic fracture mechanics analysis (K[sub Ic] testing according to ASTM Standard E399-74) as well as the elastic-plastic fracture mechanics analysis (J-Integral and crack opening displacement COD methods). The tests were conducted at a static strain rate of 10⁻⁵/sec, K = 10 ksi√in/sec with H inch thick compact tension specimens. A resistance curve test technique developed by Landes and Begley was employed to obtain the J[sub Ic] fracture toughness; whereas the British Standard for COD testing was followed for measuring the δ[sub c] fracture toughness. The anisotropy in fracture toughness and the tensile properties of the two x-70 steels were measured and explained in terms of sulphur content and rare earth additions. An attempt was made to correlate the linear elastic fracture toughness K[sub Ic] or K[sub Q] values with the elastic-plastic fracture toughness, J[sub Ic],and COD data for both steels for tests in each of three notch orientations i.e. parallel to the rolling direction (T-L); parallel to the pipe axis; transverse to the rolling direction (L-T). Tests were performed at temperatures throughout the transition range i.e. from RT down to - 196°C. Finally the static fracture toughness data as generated in this study, was compared with the dynamic fracture toughness as obtained from IIT test for both steels.
A Simple Separable Exact C*-Algebra not Anti-isomorphic to Itself
Creators: name: Phillips, N. Christopher
name: Viola, Maria Grazia
Publisher: name: arXiv
Year: 2010
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L35, 46L37, 46L40, 46L54

description: We give an example of an exact, stably finite, simple. separable C*-algebra D which is not isomorphic to its opposite algebra. Moreover, D has the following additional properties. It is stably finite, approximately divisible, has real rank zero and stable rank one, has a unique tracial state, and the order on projections over D is determined by traces. It also absorbs the Jiang-Su algebra Z, and in fact absorbs the 3^{\infty} UHF algebra. We can also explicitly compute the K-theory of D, namely K_0 (D) = Z[1/3] with the standard order, and K_1 (D) = 0, as well as the Cuntz semigroup of D.
description: 16 pages; AMSLaTeX. The material on other possible K-groups for such an algebra has been moved to a separate paper (1309.4142 [math.OA])
RAM Udbetaling af efterløn (EU)
Creators: Arbejdsdirektoratet
Arbejdsmarkedsstyrelsen
Styrelsen for Arbejdsmarked og Rekruttering
Publisher: name: Rigsarkivet
Year: 2022

description: Jf. lovbekendtgørelse nr. 225 af 20. marts 2018 indberetter a-kasser udbetalinger af efterløn. RAM ("Register for Arbejdsmarkedet") er et fagsystem i Styrelsen for Arbejdsmarked og Rekruttering, der indeholder indberetninger fra arbejdsløshedskasserne vedr. udbetaling af dagpenge, feriedagpenge, efterløn og beskæftigelsesindsats mv. Formålet med RAM er at danne grundlag for udarbejdelse af statistikker, analyser mv. om arbejdsmarkedet og ændringer i forhold vedrørende arbejdsmarkedet.
Finite temperature dissipation and transport near quantum critical points
Creators: name: Sachdev, Subir
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: I review a variety of model systems and their quantum critical points, motivated by recent experimental and theoretical developments. These are used to present a general discussion of the non-zero temperature crossovers in the vicinity of a quantum critical point. Insights are drawn from the exact solutions of quantum critical transport obtained from the AdS/CFT correspondence. I conclude with a discussion of the role of quantum criticality in the phase diagram of the cuprate superconductors
description: 27 pages, 10 figures, Contributed chapter to the book "Understanding Quantum Phase Transitions," edited by Lincoln D. Carr (Taylor & Francis, Boca Raton, 2010)
Potential Application of Bisoprolol Derivative Compounds as Antihypertensive Drugs: Synthesis and In Silico Study
Creators: name: Oktaviani, Ni Putu Sani
name: Ivansyah, Atthar Luqman
name: Saputra, Muhammad Yogi
name: Handayani, Nurrahmi
name: Fadylla, Nurdiani
name: Wahyuningrum, Deana
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 340399
subject: Macromolecular and materials chemistry not elsewhere classified
classificationCode: 340503
subject: Organic chemical synthesis
classificationCode: 340599
subject: Organic chemistry not elsewhere classified
classificationCode: 340799
subject: Theoretical and computational chemistry not elsewhere classified

description: Characterization of product using FTIR, NMR and HPLC
The model of dynamo with small number of modes and magnetic activity of T Tauri stars
Creators: name: Sokoloff, D. D.
name: Nefedov, S. N.
name: Ermash, A. A.
name: Lamzin, S. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The model that describes operation of dynamo in fully convective stars is presented. It is based on representation of stellar magnetic field as a superposition of finite number of poloidal and toroidal free damping modes. In the frame of adopted low of stellar differential rotation we estimated minimal value of dynamo number D, starting from which generation of cyclic magnetic field in stars without radiative core is possible. We also derived expression for period of the cycle. It was found that dynamo cycles of fully convective stars and stars with thin convective envelopes differ in a qualitative way: 1) distribution of spots over latitude during the cycle is different in these stars; 2) the model predicts that spot formation in fully convective stars should be strongly suppressed at some phases of the cycle. We have analyzed historical lightcurve of WTTS star V410 Tau and found that long term activity of the star is not periodic process. Rather one can speak about quasi cyclic activity with characteristic time of $\sim 4$ yr and chaotic component over imposed. We concluded also that redistribution of cool spots over longitude is the reason of long term variations of V410 Tau brightness. It means that one can not compare directly results of photometric observations with predictions of our axially symmetric (for simplicity) model which allows to investigate time evolution of spot's distribution over latitude. We then discuss what kind of observations and in which way could be used to check predictions of the dynamo theory.
description: 18 pages, 5 figures, accepted to Astron. Lett
Wave splitting of Maxwell's equations with anisotropic heterogeneous constitutive relations
Creators: name: Jonsson, B. L. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 35P25, 78A25, 78A40, 78A46, 35Q60, 46N20, 47N20

description: The equations for the electromagnetic field in an anisotropic media are written in a form containing only the transverse field components relative to a half plane boundary. The operator corresponding to this formulation is the electromagnetic system's matrix. A constructive proof of the existence of directional wave-field decomposition with respect to the normal of the boundary is presented. In the process of defining the wave-field decomposition (wave-splitting), the resolvent set of the time-Laplace representation of the system's matrix is analyzed. This set is shown to contain a strip around the imaginary axis. We construct a splitting matrix as a Dunford-Taylor type integral over the resolvent of the unbounded operator defined by the electromagnetic system's matrix. The splitting matrix commutes with the system's matrix and the decomposition is obtained via a generalized eigenvalue-eigenvector procedure. The decomposition is expressed in terms of components of the splitting matrix. The constructive solution to the question on the existence of a decomposition also generates an impedance mapping solution to an algebraic Riccati operator equation. This solution is the electromagnetic generalization in an anisotropic media of a Dirichlet-to-Neumann map.
description: 45 pages, 2 figures
Matrix De Rham complex and quantum A-infinity algebras
Creators: name: Barannikov, Serguei
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 05A05, 14N35, 53D45, 53D37

description: I establish the relation of the non-commutative BV-formalism with super-invariant matrix integration. In particular, the non-commutative BV-equation, defining the quantum A-infinity-algebras, introduced in "Modular operads and Batalin-Vilkovisky geometry" IMRN, Vol. 2007, doi: 10.1093/imrn/rnm075, is represented via de Rham differential acting on the matrix spaces related with Bernstein-Leites simple associative algebras with odd trace q(N), and with gl(N|N). I also show that the Lagrangians of the matrix integrals from "Noncommmutative Batalin-Vilkovisky geometry and Matrix integrals", Comptes Rendus Mathematique, vol 348 (2010), pp. 359-362, arXiv:0912.5484, are equivariantly closed differential forms.
description: published version
RAM Afgang fra efterlønsordningen (EA)
Creators: Arbejdsdirektoratet
Arbejdsmarkedsstyrelsen
Styrelsen for Arbejdsmarked og Rekruttering
Publisher: name: Rigsarkivet
Year: 2022

description: Jf. lovbekendtgørelse nr. 225 af 20. marts 2018 indberetter a-kasser udtrædelser af efterlønsordningen. RAM ("Register for Arbejdsmarkedet") er et fagsystem i Styrelsen for Arbejdsmarked og Rekruttering, der indeholder indberetninger fra arbejdsløshedskasserne vedr. udbetaling af dagpenge, feriedagpenge, efterløn og beskæftigelsesindsats mv. Formålet med RAM er at danne grundlag for udarbejdelse af statistikker, analyser mv. om arbejdsmarkedet og ændringer i forhold vedrørende arbejdsmarkedet.
title: Contribution of the light filth method to the Integrated Pest Management of a flour mill
Creators: name: Trematerra, P.
name: Catalano, S.
Publisher: name: Julius Kühn-Institut
Year: 2010
Subjects: subject: light filth
subject: semolina
subject: IPM
subject: flour mill
subject: Italy

description: Julius-Kühn-Archiv; 425; 589-595
Quantum percolation and magnetic nano-dropletstates in electronically phase-separated manganite nanowires
Creators: name: Zhang, Kaixuan
name: Li, Lin
name: Li, Hui
name: Feng, Qiyuan
name: Zhang, Nan
name: Cheng, Long
name: Fan, Xiaodong
name: Hou, Yubin
name: Lu, Qingyou
name: Zhang, Zhenyu
name: Zeng, Changgan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: One-dimensional (1D) confinement has been revealed to effectively tune the properties of materials in homogeneous states. The 1D physics can be further enriched by electronic inhomogeneity, which unfortunately remains largely unknown. Here we demonstrate the ultra-high sensitivity to magnetic fluctuations and the tunability of phase stability in the electronic transport properties of self-assembled electronically phase-separated manganite nanowires with extreme aspect ratio. The onset of magnetic nano-droplet state, a precursor to the ferromagnetic metallic state, is unambiguously revealed, which is attributed to the small lateral size of the nanowires that is comparable to the droplet size. Moreover, the quasi-1D anisotropy stabilizes thin insulating domains to form intrinsic tunneling junctions in the low temperature range, which is robust even under magnetic field up to 14 T, and thus essentially modifies the classic 1D percolation picture to stabilize a novel quantum percolation state. A new phase diagram is therefore established for the manganite system under quasi-1D confinement for the first time. Our findings offer new insight to understand and manipulate the colorful properties of the electronically phase-separated systems via dimensionality engineering.
New Chiral Generalized Minimal Massive Gravity
Creators: name: Setare, Mohammad Reza
name: Sajadi, Seyed Naseh
name: Dengiz, Suat
name: Kilicarslan, Ercan
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the generalized minimal massive gravity (GMMG) in Compere, Song and Strominger boundary conditions employing a semi-product of a Virasoro and a $\hat{u}(1)$ Kac-Moody current algebras as the asymptotic symmetry algebra. We calculate the entropy of BTZ black holes via the degeneracy of states belonging to a Warped-CFT. We compute the linearized energy excitations by using the representations of the algebra $\hat{u}(1) \times SL(2,R)_R$ and show that energies of excitations are non-negative at (two) chiral points in the parameter space. At these special points, the charge algebra is described by either Virasoro algebra or Kac-Moody algebra. We also consider some special limits of the GMMG theory which correspond to $2+1$-dimensional massive gravity theories such as new massive and minimal massive gravity theories.
description: 10 pages, references added, published in Phys. Rev. D
QCD corrections to charged triple vector boson production with leptonic decay
Creators: name: Campanario, F.
name: Hankele, V.
name: Oleari, C.
name: Prestel, S.
name: Zeppenfeld, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the O(alpha_s) QCD corrections to charged triple vector boson production at a hadron collider, i.e. the processes pp -> ZZW + X and pp -> WWW + X. Intermediate Higgs boson exchange effects, spin correlations from leptonic vector boson decays, and off-shell contributions are all taken into account. Results are implemented in a fully flexible Monte Carlo program that allows for an easy customization of kinematical cuts and variation of the factorization and renormalization scales. We analyze the dependence of the differential cross sections under scale variations and present distributions where the QCD corrections strongly modify the leading-order results.
description: 16 pages, 9 figures, 3 tables
Danmarks Arealinformation
Creators: Danmarks Miljøportal
Publisher: name: Rigsarkivet
Year: 2022

description: Danmarks Arealinformation er et af
Danmarks Miljøportals systemer og er
det System, hvor myndighedernes arealmæssige rådighedsindskrænkninger
på miljøområdet og andre stedbestemte miljødata udstilles og distribueres videre
til andre myndigheder eller til borgere, organisationer og virksomheder. En stor
del af de miljødata, der er omfattet af partnerskabet, bliver registreret, lagret, opdateret og distribueret via forskellige systemer (fagdatabaser), som Danmarks Miljøportal har driftsansvaret (systemejerskabet) for.

De miljødata, der stilles til rådighed via miljøportalen, produceres og opdateres
af de involverede myndigheder og stilles vederlagsfrit til rådighed på Danmarks Miljøportal i standardiserede formater.
En dataansvarsaftale fastlægger hver
enkelt myndigheds opgaver vedrørende produktion og opdatering af de data,
som myndigheden har ansvaret for.

Danmarks Arealinformation muliggør serviceorienteret visning, redigering og distribution af data via webservices og faciliterer herved præsentationen af ensartede og landsdækkende data på Danmarks Miljøportal.
Generation of high-fidelity four-photon cluster state and quantum-domain demonstration of one-way quantum computing
Creators: name: Tokunaga, Yuuki
name: Kuwashiro, Shin
name: Yamamoto, Takashi
name: Koashi, Masato
name: Imoto, Nobuyuki
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We experimentally demonstrate a simple scheme for generating a four-photon entangled cluster state with fidelity over 0.860 $\pm$ 0.015. We show that the fidelity is high enough to guarantee that the produced state is distinguished from Greenberger-Horne-Zeilinger, W, and Dicke types of genuine four-qubit entanglement. We also demonstrate basic operations of one-way quantum computing using the produced state and show that the output state fidelities surpass classical bounds, which indicates that the entanglement in the produced state essentially contributes to the quantum operation.
description: 5 pages, 5 figures
RAM Udbetaling af skattefri præmie (SP)
Creators: Arbejdsdirektoratet
Arbejdsmarkedsstyrelsen
Styrelsen for Arbejdsmarked og Rekruttering
Publisher: name: Rigsarkivet
Year: 2022

description: Jf. lovbekendtgørelse nr. 225 af 20. marts 2018 indberetter a-kasser udbetalinger af skattefri præmie. RAM ("Register for Arbejdsmarkedet") er et fagsystem i Styrelsen for Arbejdsmarked og Rekruttering, der indeholder indberetninger fra arbejdsløshedskasserne vedr. udbetaling af dagpenge, feriedagpenge, efterløn og beskæftigelsesindsats mv. Formålet med RAM er at danne grundlag for udarbejdelse af statistikker, analyser mv. om arbejdsmarkedet og ændringer i forhold vedrørende arbejdsmarkedet.
RAM Beskæftigelsesindsats (BI)
Creators: Arbejdsdirektoratet
Arbejdsmarkedsstyrelsen
Styrelsen for Arbejdsmarked og Rekruttering
Publisher: name: Rigsarkivet
Year: 2022

description: Jf. lovbekendtgørelse nr. 225 af 20. marts 2018 indberetter a-kasser gennemførte beskæftigelsesindsatser. RAM ("Register for Arbejdsmarkedet") er et fagsystem i Styrelsen for Arbejdsmarked og Rekruttering, der indeholder indberetninger fra arbejdsløshedskasserne vedr. udbetaling af dagpenge, feriedagpenge, efterløn og beskæftigelsesindsats mv. Formålet med RAM er at danne grundlag for udarbejdelse af statistikker, analyser mv. om arbejdsmarkedet og ændringer i forhold vedrørende arbejdsmarkedet.
Instrumented impact testing and its application to the study of acicular ferrite steels
Creators: name: McConnell, Paul
Publisher: name: University of British Columbia
Year: 2010

description: An instrumented impact test (IIT) machine was constructed and calibrated using static and dynamic loading. The theory and fundamentals of IIT have been reviewed. Tests were performed to assess the proposed ASTM IIT validity criteria. The requirements that the fracture time be greater than 3 times the period of specimen oscillations and 1.1 times the electronic response time appear to be conservative. The data confirm that adoption of the criterion, B > 2.5 (K[sub Id]/σ[sub yd])², ensures plane strain fracture, whereas the acceptance of a linear load-to-failure condition (i.e., P[sub MAX] < P[sub GY]) may not be conservative enough. For general yield failures, crack initiation was shown to occur prior to the attainment of maximum load. Thus, initiation energies calculated by assuming that crack initiation occurs at the maximum load are nonconservative. The dynamic properties of two acicular ferrite pipeline steels were characterized by IIT. The Information obtained, particularly the fracture toughness parameters and the initiation energies, revealed significant inadequacies in the toughness specifications and test methods presently used by the pipeline industry. Tests performed to assess the significance of testing, standard Charpy V-notch specimens versus full pipe wall thickness Charpys showed that lower upper shelf energies were obtained for the full wall specimens. However, the magnitude of the transition and lower shelf energies and the transition temperatures were similar. Fatigue precracked standard Charpys specimens absorbed much lower energies and had higher transition temperatures than did the standard specimens. Tests were also performed to assess the strain aging behaviour of the two acicular ferrite steels. Strain aging the semi-killed steel resulted in a decrease in the propagation energy, with no change in the magnitude of the initiation energy. For this steel, strain-aging does not increase the potential for crack initiation. Tests also revealed that sites near the seam weld of the pipe made with that semi-killed steel had experienced sufficient pipe-forming strain and thermal energy from the welding process to exhibit strain age effects. The fully killed acicular ferrite steel did not strain age; its strength and toughness were increased upon aging. The instrumented impact test provided fracture toughness data that correlated very well with that obtained by more conventional fracture toughness testing techniques. The total fracture energy from a standard Charpy test was shown to often mask the fracture toughness value of a material. The initiation energy obtained from testing a precracked Charpy specimen accurately indicated the relative magnitude of the fracture toughness, however.
Parameterized Complexity of the k-anonymity Problem
Creators: name: Beretta, Stefano
name: Bonizzoni, Paola
name: Della Vedova, Gianluca
name: Dondi, Riccardo
name: Pirola, Yuri
Publisher: name: arXiv
Year: 2009
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Databases (cs.DB)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: The problem of publishing personal data without giving up privacy is becoming increasingly important. An interesting formalization that has been recently proposed is the $k$-anonymity. This approach requires that the rows of a table are partitioned in clusters of size at least $k$ and that all the rows in a cluster become the same tuple, after the suppression of some entries. The natural optimization problem, where the goal is to minimize the number of suppressed entries, is known to be APX-hard even when the records values are over a binary alphabet and $k=3$, and when the records have length at most 8 and $k=4$ . In this paper we study how the complexity of the problem is influenced by different parameters. In this paper we follow this direction of research, first showing that the problem is W[1]-hard when parameterized by the size of the solution (and the value $k$). Then we exhibit a fixed parameter algorithm, when the problem is parameterized by the size of the alphabet and the number of columns. Finally, we investigate the computational (and approximation) complexity of the $k$-anonymity problem, when restricting the instance to records having length bounded by 3 and $k=3$. We show that such a restriction is APX-hard.
description: 22 pages, 2 figures
Spin glass models with Kac interactions
Creators: name: Franz, Silvio
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: In this paper I will review my work on disordered systems -spin glass model with two body and $p>2$ body interactions- with long but finite interaction range $R$. I will describe the relation of these model with Mean Field Theory in the Kac limit and some attempts to go beyond mean field.
description: Proceedings of the Stat-phys23 conference
On measuring the gravitational-wave background using Pulsar Timing Arrays
Creators: name: van Haasteren, Rutger
name: Levin, Yuri
name: McDonald, Patrick
name: Lu, Tingting
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Long-term precise timing of Galactic millisecond pulsars holds great promise for measuring the long-period (months-to-years) astrophysical gravitational waves. Several gravitational-wave observational programs, called Pulsar Timing Arrays (PTA), are being pursued around the world. Here we develop a Bayesian algorithm for measuring the stochastic gravitational-wave background (GWB) from the PTA data. Our algorithm has several strengths: (1) It analyses the data without any loss of information, (2) It trivially removes systematic errors of known functional form, including quadratic pulsar spin-down, annual modulations and jumps due to a change of equipment, (3) It measures simultaneously both the amplitude and the slope of the GWB spectrum, (4) It can deal with unevenly sampled data and coloured pulsar noise spectra. We sample the likelihood function using Markov Chain Monte Carlo (MCMC) simulations. We extensively test our approach on mock PTA datasets, and find that the algorithm has significant benefits over currently proposed counterparts. We show the importance of characterising all red noise components in pulsar timing noise by demonstrating that the presence of a red component would significantly hinder a detection of the GWB. Lastly, we explore the dependence of the signal-to-noise ratio on the duration of the experiment, number of monitored pulsars, and the magnitude of the pulsar timing noise. These parameter studies will help formulate observing strategies for the PTA experiments.
description: 10 pages, 12 figures
Scalar conservation laws with stochastic forcing
Creators: name: Debussche, Arnaud
name: Vovelle, Julien
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: We show that the Cauchy Problem for a randomly forced, periodic multi-dimensional scalar first-order conservation law with additive or multiplicative noise is well-posed: it admits a unique solution, characterized by a kinetic formulation of the problem, which is the limit of the solution of the stochastic parabolic approximation.
Flavor Changing Neutral Currents Transition of the $Σ_{Q}$ to Nucleon in Full QCD and Heavy Quark Effective Theory
Creators: name: Azizi, K.
name: Bayar, M.
name: Zeyrek, M. T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The loop level flavor changing neutral currents transitions of the $Σ_{b}\to n l^+l^-$ and $Σ_{c}\to p l^+l^-$ are investigated in full QCD and heavy quark effective theory in the light cone QCD sum rules approach. Using the most general form of the interpolating current for $Σ_{Q}$, $Q=b$ or $c$, as members of the recently discovered sextet heavy baryons with spin 1/2 and containing one heavy quark, the transition form factors are calculated using two sets of input parameters entering the nucleon distribution amplitudes, namely, QCD sum rules and lattice QCD inputs. The obtained results are used to estimate the decay rates of the corresponding transitions. Since such type transitions occurred at loop level in the standard model, they can be considered as good candidates to search for the new physics effects beyond the SM.
description: 18 Pages and 13 Tables
Electronic structure of oxygen-free 38K superconductor Ba1-xKxFe2As2 in comparison with BaFe2As2 from first principles
Creators: name: Shein, I. R.
name: Ivanovskii, A. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Based on first-principles FLAPW-GGA calculation, we have investigated electronic structure of newly discovered oxygen-free 38K superconductor Ba1-xKxFe2As2 in comparison with parent phase - tetragonal ternary iron arsenide BaFe2As2. The density of states, magnetic properties, near-Fermi bands compositions, together with Sommerfeld coefficients and molar Pauli paramagnetic susceptibility are evaluated. The results allow us to classify these systems as quasi-two-dimensional ionic metals, where the conduction is strongly anisotropic, only happening on the (Fe-As) layers. According to our calculations, at the hole doping of BaFe2As2 the density of states at the Fermi level grows, and this can be a possible factor of occurrence of superconductivity for Ba1-xKxFe2As2. On the other hand, Ba1-xKxFe2As2 lays at the border of magnetic instability and the pairing interactions might involve magnetic or orbital fluctuations.
description: 11 pages, 2 figures
Asteroseismogyrometry of low-mass red giants I. The SOLA inversion method
Creators: name: Pijpers, F. P.
name: Di Mauro, M. P.
name: Ventura, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: During the past 10 years the unprecedented quality and frequency resolution of asteroseismic data provided by space photometry has revolutionized the study of red-giant stars providing us with the possibility to probe the interior of thousands of these targets. Our aim is to present an asteroseismic tool which allows to determine the total angular momentum of stars, without a priori inference of their internal rotational profile. We adopt and adapt to red giants the asteroseismic inversion technique developed for the case of the Sun. The method has been tested assuming different artificial sets of data, including also modes with harmonic degree l> 1. We estimate with an accuracy of 14.5% the total angular momentum of the red-giant star KIC 4448777 observed by Kepler during the first four consecutive years of operation.} Our results indicate that the measurement of the total angular momentum of red-giant stars can be determined with a fairly high precision by means of asteroseismology by using a small set of rotational splittings of only dipolar modes and that our method, based on observations of stellar pulsations, provides a powerful mean for testing and modeling transport of angular momentum in stars.
description: 11 pages, 8 figures
O'ZBEK JANGCHILARINING IKKINCHI JAHON URUSHIDAGI JASORATLARI
Creators: name: Shonazarov, Maqsudbek
name: Jabbarova, I.
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqolada O‘zbekistondan urushga safarbar qilinganlar va ularning janggohdagi jasoratlari va boshdan kechirgan qiyinchiliklari, shu bilan birga ularga urushdan keyin ko‘rsatilgan munosabatlar yoritib berilgan.
Gamma rays and positrons from a decaying hidden gauge boson
Creators: name: Chen, Chuan-Ren
name: Takahashi, Fuminobu
name: Yanagida, T. T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study a scenario that a hidden gauge boson constitutes the dominant component of dark matter and decays into the standard model particles through a gauge kinetic mixing. Interestingly, gamma rays and positrons produced from the decay of hidden gauge boson can explain both the EGRET excess of diffuse gamma rays and the HEAT anomaly in the positron fraction. The spectra of the gamma rays and the positrons have distinctive features; the absence of line emission of the gamma ray and a sharp peak in the positron fraction. Such features may be observed by the GLAST and PAMELA satellites.
description: 16 pages, 4 figures, adding PAMELA data, the version accepted by PLB
RAM Udbetaling af arbejdsmarkedsydelse (AY)
Creators: Arbejdsmarkedsstyrelsen
Styrelsen for Arbejdsmarked og Rekruttering
Publisher: name: Rigsarkivet
Year: 2022

description: Jf. lovbekendtgørelse nr. 225 af 20. marts 2018 indberetter a-kasser udbetalinger af arbejdsmarkedsydelse. RAM ("Register for Arbejdsmarkedet") er et fagsystem i Styrelsen for Arbejdsmarked og Rekruttering, der indeholder indberetninger fra arbejdsløshedskasserne vedr. udbetaling af dagpenge, feriedagpenge, efterløn og beskæftigelsesindsats mv. Formålet med RAM er at danne grundlag for udarbejdelse af statistikker, analyser mv. om arbejdsmarkedet og ændringer i forhold vedrørende arbejdsmarkedet.
Intracranial aneurysm wall (in)stability – current state of knowledge and clinical perspectives
Creators: name: Morel, Sandrine
Publisher: name: Université de Genève
Year: 2020
Subjects: subject: info:eu-repo/classification/ddc/616.07
subject: Intracranial aneurysm
subject: Subarachnoid haemorrhage
subject: Risk factors
subject: Wall instability
subject: Histology
subject: Hemodynamics
subject: Imaging
subject: Genetics
subject: FOS: Biological sciences
subject: Common data element

description: Intracranial aneurysm (IA), a local outpouching of cerebral arteries, is present in 3 to 5% of the population. Once formed, an IA can remain stable, grow or rupture. Determining the evolution of an IA is almost impossible. Rupture of an IA leads to subarachnoid haemorrhage (SAH). SAH which mostly affects young people with a median age of onset between 50 and 60 years has heavy consequences in term of life, disabilities and socio-economic burden. Thus, even if the large majority of IAs will never rupture it is of high importance to determine which IA is at risk of rupture. IA (in)stability is dependent of its vascular wall composition. The biology of the IA wall is complex and not completely understood. Nowadays, in clinic, the risk of rupture of an IA can be estimated by using scores based on the characteristics of the IA itself such as location, size or presence of shape irregularities, and on the anamnesis of the patient including ethnicity, age, hypertension or smoking status. Such scores are not completely satisfying and more information concerning IA (in)stability are needed to safely determine if a patient should be observed or treated. In the present review, the effects of known risk factors for rupture, as well as the effects of biomechanical forces on the IA wall composition will be summarized. Moreover, recent advances in high resolution vessel wall magnetic resonance imaging which are promising tools to help in the discrimination between stable and unstable IA wall will be described. Common data elements recently defined to improve current state of knowledge in IA disease and disease management will be presented. Finally, recent findings in genetics will be introduced and future directions in the field of IA will be exposed.
Trends, strategies and perspectives of modern illumination and lighting of towns on the example of Lyons
Creators: name: Zienowicz, Magdalena
name: Podhajska, Ewa
Publisher: name: Faculty of Architecture, Wrocław University of Technology, Wrocław
Year: 2014
Subjects: illumination, public lighting, city

description: ARCHITECTUS; ISSN 1429-7507
Filtering free resolutions
Creators: name: Eisenbud, David
name: Erman, Daniel
name: Schreyer, Frank-Olaf
Publisher: name: arXiv
Year: 2010
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 13D02, 13C05, 13C14

description: A recent result of Eisenbud-Schreyer and Boij-Söderberg proves that the Betti diagram of any graded module decomposes as a positive rational linear combination of pure diagrams. When does this numerical decomposition correspond to an actual filtration of the minimal free resolution? Our main result gives a sufficient condition for this to happen. We apply it to show the non-existence of free resolutions with some plausible-looking Betti diagrams and to study the semigroup of quiver representations of the simplest "wild" quiver.
description: We correct a mistake in the proof of Corollary 4.2 in the published version of this paper. The mistake involves an incorrect definition for when two degree sequences are "sufficiently separated". The new definition weakens Theorem 1.3 somewhat, but the examples survive. We thank Amin Nematbakhsh and to Gunnar Floystad for bringing this mistake to our attention. We also correct some minor typos
Exact beta function and glueball spectrum in large-N Yang Mills theory
Creators: name: Bochicchio, Marco
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the pure large-N Yang-Mills theory there is a quasi-BPS sector that is exactly solvable at large N. It follows an exact beta function and the glueball spectrum in this sector. The main technical tool is a new holomorphic loop equation for quasi-BPS Wilson loops, that occurs as a non-supersymmetric analogue of Dijkgraaf-Vafa holomorphic loop equation for the glueball superpotential of n=1 SUSY gauge theories. The new holomorphic loop equation is localized, i.e. reduced to a critical equation, by a deformation of the loop that is a vanishing boundary in homology, somehow in analogy with Witten's cohomological localization by a coboundary deformation in SUSY gauge theories.
description: PDF, 11 pages, talk at EPS-HEP 2009; added a footnote on the fluctuations of surface operators as published in PoS