cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hydrodynamics of probabilistic ballistic annihilation
Creators: name: Coppex, Francois
name: Droz, Michel
name: Trizac, Emmanuel
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a dilute gas of hard spheres in dimension $d \geq 2$ that upon collision either annihilate with probability $p$ or undergo an elastic scattering with probability $1-p$. For such a system neither mass, momentum, nor kinetic energy are conserved quantities. We establish the hydrodynamic equations from the Boltzmann equation description. Within the Chapman-Enskog scheme, we determine the transport coefficients up to Navier-Stokes order, and give the closed set of equations for the hydrodynamic fields chosen for the above coarse grained description (density, momentum and kinetic temperature). Linear stability analysis is performed, and the conditions of stability for the local fields are discussed.
description: 19 pages, 3 eps figures included
Matrix models, 4D black holes and topological strings on non-compact Calabi-Yau manifolds
Creators: name: Danielsson, Ulf H.
name: Olsson, Martin E.
name: Vonk, Marcel
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the relation between c=1 matrix models at self-dual radii and topological strings on non-compact Calabi-Yau manifolds. In particular the special case of the deformed matrix model is investigated in detail. Using recent results on the equivalence of the partition function of topological strings and that of four dimensional BPS black holes, we are able to calculate the entropy of the black holes, using matrix models. In particular, we show how to deal with the divergences that arise as a result of the non-compactness of the Calabi-Yau. The main result is that the entropy of the black hole at zero temperature coincides with the canonical free energy of the matrix model, up to a proportionality constant given by the self-dual temperature of the matrix model.
description: 42 pages, 10 figures. v2: Minor corrections and clarifications added. References added
A new approach to induction and imprimitivity results
Creators: name: Vaes, Stefaan
Publisher: name: arXiv
Year: 2004
Subjects: subject: Operator Algebras (math.OA)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: Primary 22D30, Secondary 46L89, 46L55, 46L08

description: In the framework of locally compact quantum groups, we provide an induction procedure for unitary corepresentations as well as coactions on C*-algebras. We prove imprimitivity theorems that unify the existing theorems for actions and coactions of groups. We essentially use von Neumann algebraic techniques.
description: We added an imprimitivity characterization of induced coactions. Minor typographical corrections as well
Supplementary Tables S1-11 from Juvenile Dungeness crabs (Metacarcinus magister) selectively integrate and modify the fatty acids of their experimental diets
Creators: name: Thomas, Michael D.
name: Schram, Julie B.
name: Zade F. Clark-Henry
name: Yednock, Bree K.
name: Shanks, Alan L.
name: Galloway, Aaron W. E.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Biochemistry
subject: Ecology
subject: FOS: Biological sciences

description: Tables containing average FA proportion by treatment for feeding assays, wild crabs, and crab experimental foods. Tables containing results of post-hoc comparisons.
No short hair behaviors of ultra-compact stars
Creators: name: Peng, Yan
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the black hole spacetime, a no short hair theorem was proved, which states that the effective radius of black hole hairs must extend beyond the null circular orbit. In the present paper, in the horizonless gravity, we find a similar no short hair behavior that the effective radius of matter fields must also extend beyond the null circular orbit of ultra-compact stars.
description: 6 pages
Excitation energies, hyperfine constants, E1, E2, M1 transition rates, and lifetimes of (6s2)nl states in Tl I and Pb II
Creators: name: Safronova, U. I.
name: Safronova, M. S.
name: Johnson, W. R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Energies of np (n=6-9), ns (n=7-9), nd (n=6-8), and nf (n=5-6) states in Tl I and Pb II are obtained using relativistic many-body perturbation theory. Reduced matrix elements, oscillator strengths, transition rates, and lifetimes are determined for the 72 possible electric-dipole transitions. Electric-quadrupole and magnetic-dipole matrix elements are evaluated to obtain np(3/2) - mp(1/2) (n,m=6,7) transition rates. Hyperfine constants A are evaluated for a number of states in 205Tl. First-, second-, third-, and all-order corrections to the energies and matrix elements and first- and second-order Breit corrections to energies are calculated. In our implementation of the all-order method, single and double excitations of Dirac-Fock wave functions are included to all orders in perturbation theory. These calculations provide a theoretical benchmark for comparison with experiment and theory.
description: twelve tables, no figures
title: Boxenstop : studentisches Wohnen als Zwischennutzung im Leerstand in einer wachsenden Metropole Wien
Creators: name: Wöhrer, Katharina
Publisher: name: TU Wien
Year: 2017
Subjects: subject: Studenisches Wohnen
subject: Leerstand
subject: student housing
subject: vacantness

description: Der weltweite Trend der Urbanisierung hat auch in Wien zur Folge, dass es immer schwieriger wird, leistbaren Wohnraum zu finden, besonders für Studenten. Immer mehr Hochschüler strömen in Österreichs Hauptstadt, wobei der Bedarf an günstigen Heimplätzen bei Weitem nicht gedeckt ist. Diese Arbeit setzt sich mit der Frage auseinander, wie man zukünftig leistbaren gemeinschaftlichen Wohnraum in Wien für Studierende zur Verfügung stellen kann. Großes Potential bieten ungenutzte Flächen, besonders leerstehende Büro- und Gewerbebauten mit guter Infrastruktur. Diese sollen für Studenten zwischenzeitlich nutzbar gemacht werden und eine mögliche Antwort auf das mangelnde Angebot an leistbaren innerstädtischen Wohnraum geben. Ziel ist es, ein flexibles und möglichst kostengünstiges Konzept eines temporären Studentenheims zu entwickeln, dass sich an verschiedenen bestehenden Raumstrukturen anpassen und mehrmals wiederverwendet werden kann. Der gemeinschaftliche und soziale Charakter eines Studentenheims wird dabei in den Vordergrund gerückt. Gleichzeitig soll ein alternativer Lösungsansatz aus architektonischer und theoretischer Sicht aufgezeigt werden.
description: The global trend of urbanization causes difficulties to find affordable living space, also in Vienna and especially for students. More and more students are flocking to Austrias capital city where the need for cheap student residences is, by far, not covered. This master thesis deals with the question how low-priced housing in community could be offered for students in Vienna. Unused spaces, especially office or commercial buildings, represent a huge potential for low-priced housing. These unused premises shall be temporarily made usable for students which could give an answer to the lack of affordable intra-urban living space. Aim of this paper is to develop a flexible and low-priced concept for a temporarily used student residence that is adaptable to different existing room structures and which is able to be reused multiple times. The concept puts an emphasis on the communitarian and social character of a student residence. In the same time an alternative approach from architectural and academic perspective should be demonstrated.
Unveiling the monster heart: unbeamed properties of blazar 4C 71.07
Creators: name: Raiteri, C. M.
name: Pulido, J. A. Acosta
name: Villata, M.
name: Carnerero, M. I.
name: Romano, P.
name: Vercellone, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: 4C 71.07 is a high-redshift blazar whose optical radiation is dominated by quasar-like nuclear emission. We here present the results of a spectroscopic monitoring of the source to study its unbeamed properties. We obtained 24 optical spectra at the Nordic Optical Telescope (NOT) and William Herschel Telescope (WHT) and 3 near-infrared spectra at the Telescopio Nazionale Galileo (TNG). They show no evidence of narrow emission lines. The estimate of the systemic redshift from the H$β$ and H$α$ broad emission lines leads to $z_{\rm sys}=2.2130 \pm 0.0004$. Notwithstanding the nearly face-on orientation of the accretion disc, the high-ionization emission lines present large broadening as well as noticeable blueshifts, which increase with the ionizing energy of the corresponding species. This is a clear indication of strong ionized outflows. Line broadening and blueshift appear correlated. We applied scaling relationships to estimate the mass of the supermassive black hole from the Balmer and C IV lines, taking into account the prescriptions to correct for outflow. They give $M_{\rm BH} \sim 2 \times 10^9 \, M_\odot$. We derived an Eddington luminosity $L_{\rm Edd} \sim 2.5 \times 10^{47} \rm \, erg \, s^{-1}$ $\sim L_{\rm disc}$, and a broad line region luminosity $L_{\rm BLR} \sim 1.5 \times 10^{46} \rm \, erg \, s^{-1}$. The line fluxes do not show significant variability in time. In particular, there is no line reaction to the jet flaring activity detected in 2015 October and November. This implies that the jet gives no contribution to the photoionization of the broad line region in the considered period.
description: 13 pages, 13 figures, in press for MNRAS
Occurrence of Hysteresis like behavior of resistance of $Sb_2 Te_3$ film in heating-cooling cycle
Creators: name: Arun, P.
name: Tyagi, Pankaj
name: Vedeshwar, A. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Experimental observations of a peculiar behavior observed on heating and cooling ${\rm Sb_2Te_3}$ films at different heating and cooling rate are detailed. The film regained its original resistance, forming a closed loop, on the completion of the heating-cooling cycle which was reproducible for identical conditions of heating and cooling. The area enclosed by the loop was found to depend on (i) the thickness of the film, (ii) the heating rate, (iii) the maximum temperature to which film was heated and (iv) the cooling rate. The observations are explained on basis of model which considers the film to be a resultant of parallel resistances. The film's finite thermal conductivity gives rise to a temperature gradient along the thickness of the film, due to this and the temperature coefficient of resistance, the parallel combination of resistance changes with temperature. Difference in heating and cooling rates give different temperature gradient, which explains the observed hysteresis.
description: 21 pages and 10 figures
A Nitrát Rendelet végrehajtása mezőgazdasági vállalkozásokban
Creators: name: Hoffmann, András
name: Somogyi, Tamás
name: Hoffmann, András
name: Somogyi, Tamás
Publisher: name: Unknown
Year: 2007
Subjects: subject: Demand and Price Analysis
subject: Environmental Economics and Policy
subject: Risk and Uncertainty
subject: Nitrát Rendelet
subject: tápanyag-gazdálkodás
subject: vállalati nitrogénmérleg
subject: Nitrate regulation
subject: nutrient management
subject: corporate nitrogen balance

description: A Nitrát Rendelet eltérő időpontokat határoz meg a nitrátérzékeny és a nem nitrátérzékeny területeken működő állattartó telepek hígtrágya tárolóinak kiépítésére. Jelen tanulmány ennek következményeit vizsgálja két mezőgazdasági nagyvállalkozásban. A nem nitrátérzékeny területen működő vállalat jelentős környezetterhelést okozhat pénzügyi következmények nélkül. A nitrátérzékeny területen működő vállalat számára viszont a rendelet előírásainak megfelelő hígtrágyatároló és -kezelő rendszer létesítése több százmillió forintos anyagi terhet jelentett. Értéke az üzembe helyezés évében megközelítette a vállalat tárgyi eszköz értékének 10%-át. Működtetése további költségekkel jár. A költségekkel szemben hozamként a hígtrágya N tartalmát lehetne figyelembe venni, vizsgálatainkban statisztikai próbákkal igazoltuk, hogy a 2002-2004 közötti időszakban nem jelentkezett terméstöbblet a hígtrágyával öntözött területeken. Ez arra enged következtetni, hogy a hígtrágya N tartalmának majdnem egésze a kiöntözés körülményei miatt ammónia formájában a légkörbe távozott. A költséges beruházás eredményeként a rendelet célja megvalósult, viszont nem a növénytermelés számára hasznosítható tápanyag keletkezett, hanem légszennyezés. Ilyen és hasonló vizsgálatok hozzájárulnak a fenntartható gazdálkodási rendszer üzemi megvalósításához. ---------------------- The Nitrate Directive set different deadlines for building liquid manure storage units on nitrate-sensitive versus non-sensitive areas. Our study investigates the effect of this at two agricultural firms. The one operating over a non-sensitive area can generate a significant environmental burden without any financial consequences. The other firm, operating over a nitrate-sensitive area, was forced to establish a system for storing and treating liquid manure at a cost of several hundred million forints, in order to comply with the decree. In the year operations began, the value of this system reached 10% of the corporation's tangible assets. There are also further costs of operation. Against these expenses one might set the yield from the nitrogen content of the liquid manure. However, our investigations revealed with statistical tests that there was no excess crop production in the 2002-2004 period on the fields irrigated with liquid manure. This implies that, under the conditions of the treatment, almost all nitrogen content must have escaped into the atmosphere as ammonia. Therefore the goal targeted by the decree was reached at great investment cost and produces atmospheric pollution rather than nutrients useful for crop production.
Load sharing between stringers in gravel decked log bridges
Creators: name: Lansdowne, Matthew Wayne
Publisher: name: University of British Columbia
Year: 2010

description: In British Columbia bridge designers have shifted to using steel or concrete for more permanent structures in forest roads. For temporary structures gravel decked log stringer bridges can still be a cost effective alternative. However, as companies move into smaller second growth timber, load sharing between the stringers becomes an important consideration. There are many ways that load sharing between log stringers is achieved. Examples of methods used to distribute the live loads between the log stringers are gravel surfaces, cable lashing wrapped around the stringers, and cross members including cedar cross puncheon and needle beams. In this paper a Finite Element Model (FEM) of a gravel decked log stringer bridge was developed. This model represented the stringers as beam elements and the cable lashing as elements that only transfer vertical loads. The load spread effect of the gravel surface was accounted for by using equations that predict the stress at the base of the gravel deck due to live and dead loads. For simple configurations where hand calculations were possible the results from the FEM were compared to the hand calculations. The comparison of the FEM to the hand calculations indicates the FEM is calculating values correctly. The FEM was then calibrated based on data available from the Forest Engineering Research Institute of Canada for an in service bridge. The FEM model was calibrated by varying the stiffness of the lashing element stiffness, a parameter affecting the load sharing between the stringers. When varying the stiffness of this parameter it was found through comparison of the FEM to the in-situ data that setting the stiffness of the lashing elements to very low values underestimated the load sharing between the stringers, and setting the stiffness to high values overestimated the load sharing. An error minimization analysis was run to determine the optimum lashing stiffness to calibrate the model to the in-situ data. As the calibrated FEM deflections approximated the deflected pattern of the in-service stringers the forces, moments, and reactions of the FEM should approximate the internal conditions experienced by the stringers of the in-service bridge. When considering the calibrated FEM results for the in-situ data it was found that full load sharing between all stringers of the superstructure was not occurring. This indicates it is inappropriate if design assumes full load sharing between all stringers when designing gravel decked log stringer bridges with lashing. Additionally, it was found when lashing the bridge at thirds, the sections of the stringers in the span between the lashing points were acting independently. This action produced elevated stress levels in the stringers due to bending. The elevated stress levels between the lashing points could be of particular concern to designers using smaller second growth stringers.
Real and Virtual Photoproduction of Large-pt Particles at NLO
Creators: name: Fontannaz, Michel
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the first part of this paper we assess the possibility of observing the gluon distribution in a real photon by measuring the photoproduction cross section of large-pt photons. In the second part we calculate the virtual photoproduction of large-pt forward pi0. The theoretical results are compared with data and with BFKL-inspired predictions. These studies are done at the NLO approximation.
description: Latex, 8 pages with 4 figures
Finding and Characterizing Information Warfare Campaigns
Creators: name: Beskow, David
Publisher: name: Carnegie Mellon University
Year: 2020
Subjects: Applied Computer Science

description: Today the borderless internet is used by state and non-state actors to manipulate information and societies in ways that were unheard of 50 years ago. Malicious actors can rapidly conduct information maneuvers with little cost at unprecedented scales to achieve far reaching consequences across the internet. They do this byexploiting features of the various social media platforms and the way humans naturally understand what they read and hear. These cyber-mediated threats to open anddemocratic societies have led to an emerging discipline known as social cybersecurity. While various aspects of these campaigns have been explored, little research hasfocused on the campaign level of engagement. Our research seeks to answer the question: How can information warfare campaigns be identified and characterizedquickly? Our goal is to 1) Improve understanding of information operations, and 2) Develop techniques to rapidly identify key factors such as bots and memes.To accomplish this, I present the strategic context of the information warfare that we see today, and identify and define information warfare forms of maneuver. I developvarious supervised and unsupervised methods to identify bots at four different data granularities. I present a deep learning model to classify memes as well as studythe evolution of memes within a conversation. I present a template for understanding the major components of an information campaign and develop automatic waysto populate this template for a specific event. Finally, we present a Bot, Cyborg, and Troll Field Guide to help analysts and the general population understand these entities.
Quantum State Transfer Between Matter and Light
Creators: name: Matsukevich, D. N.
name: Kuzmich, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report on the coherent quantum state transfer from a two-level atomic system to a single photon. Entanglement between a single photon (signal) and a two-component ensemble of cold rubidium atoms is used to project the quantum memory element (the atomic ensemble) onto any desired state by measuring the signal in a suitable basis. The atomic qubit is read out by stimulating directional emission of a single photon (idler) from the (entangled) collective state of the ensemble. Faithful atomic memory preparation and read-out are verified by the observed correlations between the signal and the idler photons. These results enable implementation of distributed quantum networking.
description: 14 pages, 4 figures, to be published in Science
Current density distribution in resistive fault current limiters and its effect on device stability
Creators: name: Farokhiyan, Mohammad
name: Hosseini, Mehdi
name: Kavousi-Fard, Abdollah
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The increase of current uniformity along of a resistive type superconductor fault current limiter (R-SFCL) in the design of this type of limiters is well perceived as an important issue. The non-uniform distribution of current in R-SFCL only increases the current in some superconducting regions, as a result, in the fault conditions, only certain parts of the superconductor undergo a phase change that increases the heat pressure in those areas and causes the breakdown and destruction of the device. In this paper, the current density distributions in common patterns used in R-SFCs constructions have been simulated and investigated. To this end, an effective model is proposed for R-SFCL to achieve the highest uniformity of current and harmonic phase change over superconductors compared to other patterns. The simulation results in the Ansys Maxwell Software advocate the appropriate and satisfying performance of the proposed model.
Resource specific figures from Comparison of Bayesian and numerical optimization-based diet estimation on herbivorous zooplankton
Creators: name: Litmanen, Jaakko J.
name: Perälä, Tommi A.
name: Taipale, Sami J.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Computational Biology

description: The figures of each criteria for each resource (Figures S8-S13)
Hadron Properties with FLIC Fermions
Creators: name: Zanotti, J. M.
name: Leinweber, D. B.
name: Melnitchouk, W.
name: Williams, A. G.
name: Zhang, J. B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The Fat-Link Irrelevant Clover (FLIC) fermion action provides a new form of nonperturbative O(a)-improvement in lattice fermion actions offering near continuum results at finite lattice spacing. It provides computationally inexpensive access to the light quark mass regime of QCD where chiral nonanalytic behaviour associated with Goldstone bosons is revealed. The motivation and formulation of FLIC fermions, its excellent scaling properties and its low-lying hadron mass phenomenology are presented.
description: 29 pages, 13 figures, 6 tables. Contribution to lecure notes in 2nd Cairns Topical Workshop on Lattice Hadron Physics 2003 (LHP 2003), Cairns, Australia, 22-30 Jul 2003
Protein Conformational States: A First Principles Bayesian Method
Creators: name: Rogers, David M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Machine Learning (cs.LG)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Automated identification of protein conformational states from simulation of an ensemble of structures is a hard problem because it requires teaching a computer to recognize shapes. We adapt the naive Bayes classifier from the machine learning community for use on atom-to-atom pairwise contacts. The result is an unsupervised learning algorithm that samples a `distribution' over potential classification schemes. We apply the classifier to a series of test structures and one real protein, showing that it identifies the conformational transition with > 95% accuracy in most cases. A nontrivial feature of our adaptation is a new connection to information entropy that allows us to vary the level of structural detail without spoiling the categorization. This is confirmed by comparing results as the number of atoms and time-samples are varied over 1.5 orders of magnitude. Further, the method's derivation from Bayesian analysis on the set of inter-atomic contacts makes it easy to understand and extend to more complex cases.
description: 8 page article, 3 page SI, 4 figures
Supplementary Tables from Unique fatty acid desaturase capacities uncovered in Hediste diversicolor illustrate the roles of aquatic invertebrates in trophic upgrading
Creators: name: Kabeya, Naoki
name: İbrahim GÜR
name: Oboh, Angela
name: Evjemo, Jan Ove
name: Malzahn, Arne M.
name: Hontoria, Francisco
name: Navarro, Juan C.
name: Monroig, Óscar
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Biochemistry
subject: Ecology
subject: FOS: Biological sciences

description: Table 1 (primer sequences and PCR conditions); Table 2 (desaturase conversions in yeast)
Supplementary Figure from Unique fatty acid desaturase capacities uncovered in Hediste diversicolor illustrate the roles of aquatic invertebrates in trophic upgrading
Creators: name: Kabeya, Naoki
name: İbrahim GÜR
name: Oboh, Angela
name: Evjemo, Jan Ove
name: Malzahn, Arne M.
name: Hontoria, Francisco
name: Navarro, Juan C.
name: Monroig, Óscar
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Biochemistry
subject: Ecology
subject: FOS: Biological sciences

description: Amino acid alignment of methyl desaturases.
The Fate of Bound Systems in Phantom and Quintessence Cosmologies
Creators: name: Nesseris, S.
name: Perivolaropoulos, L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study analytically and numerically the evolution of bound systems in universes with accelerating expansion where the acceleration either increases with time towards a Big Rip singularity (phantom cosmologies) or decreases with time (quintessence). We confirm the finding of Caldwell et. al. [arXiv:astro-ph/0302506] (hereafter CKW) that bound structures get dissociated in phantom cosmologies but we demonstrate that this happens earlier than anticipated by CKW. In particular we find that the `rip time' when a bound system gets unbounded is not the time when the repulsive phantom energy gravitational potential due to the average $(ρ+ 3p)$ balances the attractive gravitational potential of the mass M of the system. Instead, the `rip time' is the time when the minimum of the time dependent effective potential (including the centrifugal term) disappears. For the Milky Way galaxy this happens approximately 180Myrs before the Big Rip singularity instead of approximately 60Myrs indicated by CKW for a phantom cosmology with w=-1.5. A numerical reconstruction of the dissociating bound orbits is presented.
description: Minor modifications: A table and new references added. The mathematica file for the numerical analysis of the paper is available at http://leandros.physics.uoi.gr/bigrip.htm
LES of Turbulent Flow of The Non-Newtonian Fluid: The Turbulence Statistics
Creators: name: Abdi, Mohamed
name: Ould-Rouiss, Meryem
name: Noureddine, Abdelkader
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A large eddy simulation (LES) with an extended Smagorinsky model has been carried to investigate numerically the fully developed turbulent flow of a shear thinning fluid (n=0.75) in a stationary pipe at a simulation's Reynolds number equals to 4000 with a grid resolution of 65 3 gridpoints in axial, radial and circumferential directions and a domain length of 20R. The present study set out to critically evaluate the influence of the Non-Newtonian rheological and hydrodynamic behaviour on the turbulence main features, as well as to ascertain the accuracy and reliability of the laboratory code predicted results. The turbulent flow statistics obtained compared reasonably well with the experimental data and DNS results. A reasonably good agreement has been obtained between the predicted results and available results of literature. The main findings suggest that the mean axial velocity fluctuations were generated in the wall vicinity and transferred to the radial and spanwise components, which resulted in to an enhancement in the kinetic energy of turbulent fluctuations along the radial direction. The energy transport from the axial fluctuations to the other fluctuations components between the flow layers was suppressed compared to that of the Newtonian fluid.
Free quasi-free states and factors of type III (after D. Shlyakhtenko)
Creators: name: Vaes, Stefaan
Publisher: name: arXiv
Year: 2004
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: Primary 46L54, Secondary 46L30, 46L35

description: This is a survey paper on the work of D. Shlyakhtenko on free Araki-Woods factors. The paper was written (in French) on the occasion of the Bourbaki seminar. Our original contribution consists in computing the tau invariant for arbitrary free Araki-Woods factors.
Of moose and man : collaborating to identify First Nations’ priorities for cumulative impact assessment in northeast British Columbia
Creators: name: McGuigan, Erin Kathleen
Publisher: name: University of British Columbia
Year: 2010

description: In northeast British Columbia, industrial development is proceeding at a rapid rate. While it is playing and integral role in the provincial economy, there is increasing concern that the cumulative impacts of this development may be causing environmental damage and potentially infringing on the unique rights of First Nations in the region. This project involved collaboration with the Treaty 8 Tribal Association and member First Nations to identify the concerns that should be addressed in a cumulative impact assessment. To minimize the pitfalls associated with imposing a research agenda and methods at the community-level, we took a community-based collaborative approach. Multiple interviews and archival research identified multiple concerns that extend well beyond the natural environment. For the purpose of guiding cumulative impact assessment, these concerns were broken down into six themes: land-based activities; human health; identity, culture and sense of place; access to financial benefits; power, rights and jurisdiction; and intrinsic value of nature. The inclusion of non-ecological values and the identification of concerns not assessed under regional resource management approaches emphasize the need to establish a means to include First Nations in the assessment of cumulative impacts. The diversity amongst the concerns identified by the communities and their capacity to participate in such a study highlights the need for an open and flexible approach to collaboration. Finally, the difficulties encountered during this project illustrate the need for both researchers and communities to proceed with care and caution when entering into collaborative research partnerships.
Juhászatra specializált telepek nyeresége
Creators: name: Vincze, Judit
name: Tenk, Antal
name: Németh, Anett
name: Falusi, Bálint
name: Vincze, Judit
name: Tenk, Antal
name: Németh, Anett
name: Falusi, Bálint
Publisher: name: Unknown
Year: 2007
Subjects: subject: Demand and Price Analysis
subject: Financial Economics
subject: Livestock Production/Industries
subject: nyereséget befolyásoló tényezők
subject: termelési érték
subject: termelési költség
subject: ágazati eredmény
subject: támogatások hatása a jövedelemre
subject: factors influencing profitability
subject: production value
subject: production cost
subject: sector achievement
subject: the effects of subsidies on income

description: A vizsgált telepek a 2001-2005 közötti időszakban három évben (2001, 2004, 2005) veszteségesek voltak. A 2004-ben bekövetkezett csatlakozást követően az Európai Uniótól jelentős mértékű támogatást élvezhetnek a gyepre alapozott állattenyésztő ágazatok. Különösen érvényes ez az olyan hátrányos helyzetű térségekre, mint amilyen az Észak-Magyarország Régió. A hazai juhászatokban a ráfordítások csökkentésére és ezen keresztül a költségcsökkentésre két lehetőség kínálkozik: a legelőterületek kihasználása, valamint az állategészségügyi költségek csökkentése. Egyúttal javulhat a környezet minősége és a takarmányozás színvonala is. Az árbevétel növelésének egyik lehetősége az értékesítési árak növekedése, de ez független a gazdálkodó döntésétől, illetve az arra gyakorolt befolyása igen csekély. Az árbevétel növelésének viszont másik lehetősége a hozam növelése, míg a harmadik lehetőség a támogatások maximális kihasználása. A kalkulációs modell alapján megállapítható, hogy az igénybe vehető különböző támogatásformákkal kalkulált bevételeket figyelembe véve az ágazat nyereséges lehet. A vizsgált telepeken az anyánkénti támogatás 4103 Ft-tal, a hektáronkénti támogatás pedig 5802 Ft-tal növelné a nyereséget. ----------------- The settlements examined were loss-making in three of the years between 2001 and 2005 (2001, 2004, 2005). Following accession in 2004, grass-based animal husbandry sectors enjoyed significant subsidies from the EU. This is particularly relevant in such disadvantaged areas as the North Hungary region. In domestic sheep-farming there are two options available for reducing expenditure and thereby reducing costs: utilisation of grazing lands and the reduction of veterinary costs. At the same time, the quality of the environment and the standard of feeding could be improved. One of the possibilities for increasing turnover is to increase prices, but this is independent of the farmer’s decision-making remit and his influence on it is negligible. However, another possibility for increasing turnover is to increase yield, while a third is to maximise utilisation of subsidies. It can be determined based on the calculation method that, taking into account income calculated with the various forms of subsidy available, the sector could be profitable. On the settlements examined, the subsidy per ewe would increase profit by 4,103 forints, while the subsidy per hectare would increase it by 5,802 forints.
A nagyüzemi szarvasmarhatelepek fizikai munkaerő utánpótlása
Creators: name: Kovács, Anikó
name: Kovács, Anikó
Publisher: name: Unknown
Year: 2007
Subjects: subject: Labor and Human Capital
subject: Livestock Production/Industries
subject: állattenyésztés
subject: szakképzés
subject: munkaerő
subject: versenyképesség
subject: animal husbandry
subject: vocational training
subject: workforce
subject: competitiveness

description: A nagyüzemi állattartó telepek munkaerő-állománya jelentős szakmai- és generációváltás előtt áll, ami szerepet játszik a 2007-2013. évi fejlesztési előirányzatokban is. Az állattenyésztés munkafolyamatai egyre komplexebb tevékenységet követelnek, ezért a végtermékkel és a termeléssel kapcsolatos előírások változásával, a technológia fejlődésével, a gépesítés előrehaladásával a jövőben szélesebb körben alkalmazható szakismeretek szükségesek. A munkaadók igényeit kielégítő, értékes emberi erőforrás utánpótlásának és folyamatos fejlesztésének alapját a szakképzés különböző formái adják. Az állattenyésztésben jellemző, többnyire berögződött, káros munkamódszerek megváltoztatásához gyakorlatorientált, rövid, célzott tanfolyamok megvalósítása a kedvező, így ezek bővítése fontos. ------------------ The workforces of large-scale stock-breeding colonies face significant professional and generational changes, which play a part in the development forecasts for the period 2007-2013. Animal husbandry working processes require increasingly complex activities, therefore, with changes in the regulations relating to the end-product and to production, technological development, and the progress of mechanisation, more comprehensive technical knowledge will be required in the future. The foundations for the supply and constant development of valuable human resources that meet employers’ requirements are the various forms of vocational training. The establishment of short, practical, targeted courses is the best for changing the generally fixed, harmful working practices characteristic of animal husbandry, therefore their expansion is important.
Hypothetical diet vectors from Comparison of Bayesian and numerical optimization-based diet estimation on herbivorous zooplankton
Creators: name: Litmanen, Jaakko J.
name: Perälä, Tommi A.
name: Taipale, Sami J.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Computational Biology

description: A table of the hypothetical diet vectors of which the observations were simulated (Table S2))
U-DIADS-Bib: a full and few-shot pixel-precise dataset for document layout analysis of ancient manuscripts
Creators: name: Zottin, Silvia
name: De Nardin, Axel
name: Colombi, Emanuela
name: Piciarelli, Claudio
name: Pavan, Filippo
name: Foresti, Gian Luca
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Document Layout Analysis, which is the task of identifying different semantic regions inside of a document page, is a subject of great interest for both computer scientists and humanities scholars as it represents a fundamental step towards further analysis tasks for the former and a powerful tool to improve and facilitate the study of the documents for the latter. However, many of the works currently present in the literature, especially when it comes to the available datasets, fail to meet the needs of both worlds and, in particular, tend to lean towards the needs and common practices of the computer science side, leading to resources that are not representative of the humanities real needs. For this reason, the present paper introduces U-DIADS-Bib, a novel, pixel-precise, non-overlapping and noiseless document layout analysis dataset developed in close collaboration between specialists in the fields of computer vision and humanities. Furthermore, we propose a novel, computer-aided, segmentation pipeline in order to alleviate the burden represented by the time-consuming process of manual annotation, necessary for the generation of the ground truth segmentation maps. Finally, we present a standardized few-shot version of the dataset (U-DIADS-BibFS), with the aim of encouraging the development of models and solutions able to address this task with as few samples as possible, which would allow for more effective use in a real-world scenario, where collecting a large number of segmentations is not always feasible.
description: Neural Comput & Applic (2024)
Családi gazdaságok versenyképessége békésben
Creators: name: Baranyai, Zsolt
name: Takács, István
name: Baranyai, Zsolt
name: Takács, István
Publisher: name: Unknown
Year: 2007
Subjects: subject: Farm Management
subject: Institutional and Behavioral Economics
subject: családi gazdaság
subject: fenntarthatóság
subject: hatékonyság
subject: versenyképesség
subject: family farm
subject: sustainability
subject: effectiveness
subject: competitiveness

description: Vizsgálataink rávilágítottak a mezőgazdasági termelés hatékonysági problé¬máira. Egyértelmű, hogy az üzemméret növekedésével javul a gazdálkodás hatékonysága. Két megoldást találunk reálisan megvalósíthatónak. Az egyik a gazdálkodók együttműködésére, kooperációjára alapoz, „virtuális” nagyüzemi formációkkal biztosítva a mezőgazdaság versenyképességét. A másik lehetőség az élet- és versenyképes családi gazdaságokra alapozott üzemstruktúra, ami koránt sem tekinthető új keletűnek. Véleményünk szerint hazai viszonyok között – termelési szerkezettől függően – a szántóföldi növénytermelésben a 2-300 hektáros üzemméret tekinthető annak a méretnek, amely mellett remélhető a versenyképes termelés. Ugyanakkor be kell látnunk, hogy ilyen szintű üzemi koncentráció esetén sem mellőzhető a gazdálkodók közötti kooperáció, együttműködés, amely, ha nem is a szűkebben vett termelési folyamatok szintjén jelenik meg, de a vertikumok egyes pontjain (pl. feldolgozás) biztos tetten érhető lesz. ------------------- Our investigations highlighted the effectiveness problems of agricultural production. Obviously, a farm’s effectiveness improves in tandem with the growth of the concern. We found two realistically workable solutions. One is based on farmers’ collaboration and co-operation, ensuring agricultural competitiveness through “virtual” large-scale formations. The other possibility is a structure based on feasible and competitive family farms, which is far from an innovative idea. In our opinion under current domestic conditions – depending on production structure – in arable plant production a concern of 2-300 hectares is the size that can be hoped to produce competitively. At the same time we must admit that co-operation between farmers still cannot be omitted in the case of farm concentration at this level, which, even if not manifest in production processes understood in their narrowest sense, will certainly be present at various points in the vertical chain (e.g. processing).
High-resolution spectroscopic study of massive blue and red supergiants in Per OB1
Creators: name: de Burgos, A.
name: Simón-Díaz, S.
name: Lennon, D. J.
name: Dorda, R.
name: Negueruela, I.
name: Urbaneja, M. A.
name: Patrick, L. R.
name: Herrero, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Perseus OB1 association hosts one of the most populous groupings of blue and red supergiants (Sgs) in the Galaxy. We discuss whether the massive O-type and blue/red Sg stars located in the Per OB1 region are members of the same population and examine their binary and runaway status. We gathered a total of 405 high-resolution spectra for 88 suitable candidates around 4.5 deg from the center of the association, and compiled Gaia DR2 astrometry for all of them. This was used to investigate membership and identify runaway stars. By obtaining high-precision radial velocity (RV) estimates, we investigated the RV distributions of sample and identified spectroscopic binaries (SBs). Most of the investigated stars belong to a physically linked population located at d = 2.5$\pm$0.4 kpc. We identify 79 confirmed or likely members, and 5 member candidates. No important differences are detected in the distribution of parallaxes for stars in h and X Persei or the full sample. On the contrary, most O-type stars seem to be part of a differentiated population in terms of kinematical properties. In particular, the percentage of runaways among them (45%) is considerable higher than for the more evolved targets (that is below 5% in all cases). A similar tendency is also found for the percentage of clearly detected SBs, which already decreases from 15% to 10% when comparing the O star and B Sg samples, respectively, and practically vanishes in the cooler Sgs. All but 4 stars in our working sample can be considered as part of the same (interrelated) population. However, any further attempt to describe the empirical properties of this sample of massive stars in an evolutionary context must take into account that an important fraction of the O stars is - or has likely been - part of a binary/multiple system. In addition, some of the other more evolved targets may have also been affected by binary evolution.
description: Accepted for publication in A&A, 29 pages, 10 figures
A kistermelői tejtermelés helyzet
Creators: name: Vagany, Judit
name: Vagany, Judit
Publisher: name: Unknown
Year: 2007
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Livestock Production/Industries
subject: kistermelői felmérés
subject: nyerstej-előállítás
subject: minőség
subject: survey of small-scale producers
subject: production of raw milk
subject: quality

description: Napjaink egyik nagy jelentőségű témája a minőség. A közelmúlt nagy élelmiszerbotrányai: az átcímkézett élelmiszerek, a BSE-botrány, az E. coli okozta halálos élelmiszer-mérgezések, a SARS, a dioxin-botrány, a madárinfluenza, a paprikabotrány még inkább reflektorfénybe helyezték a témát. Magyarország 2002. január 1-től jogilag kötelező jelleggel elrendelte a HACCP rendszer alkalmazását az élelmiszer-előállításban, amely mezőgazdasági alapanyag-előállításban még nem kötelező. Az élelmiszer-feldolgozók azonban egyre nagyobb nyomást gyakorolnak az alapanyag-előállítókra, elsősorban annak érdekében, hogy mint beszállítók hitelt érdemlő módon tudják igazolni, hogy termékük (az élelmezési célra termesztett alapanyag) nem tartalmaz egészségre veszélyes mennyiségben idegen anyagokat. A 2007-2013 közötti időszakban is kiemelt szerepű a minőség. Azok a kistermelők, akik nem tudnak megfelelni a minőségi követelményeknek, kimaradnak a piacokról, amit jeleznek a felmérés eredményei. ---------------- One of the significant subjects of our day and age is quality. The recent, serious food scandals - food label substitution, the BSE scandal, the fatal food poisonings caused by E. coli, SARS, the dioxin scandal, bird flu, and the paprika scandal – have increasingly placed the subject in the spotlight. Hungary ordered the legally obligatory adoption of the HACCP system in food production from January 1st 2002, which is still not mandatory in the production of agricultural raw materials. However, food processors are placing increasing pressure on raw material processors, primarily in the interests of being able, as suppliers, to credibly certify that their products (the raw materials specifically produced for food supply) do not contain foreign matter in quantities that may be harmful to health. Quality also has a key role to play in the 2007-2013 period. Those small-scale producers who are unable to meet the quality requirements will be left out of the markets, a fact that is supported by the results of the survey.
A Framework for DevSecOps Evolution and Achieving Continuous-Integration/Continuous-Delivery (CI/CD) Capabilities
Creators: name: Lyndsi Hughes
name: Jackson, Vanessa
Publisher: name: Carnegie Mellon University
Year: 2021
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: The benefits of operating a development environment with continuous-integration and continuous delivery (CI/CD) pipeline capabilities and DevSecOps practices are well documented. Leveraging DevSecOps practices and CI/CD pipelines enable organizations to respond to security and reliability events quickly and efficiently and to produce resilient and secure software on a predictable schedule and budget. Although the decision by management to adopt this methodology may be easy, the initial implementation and ongoing improvement of the methodology can be challenging and could result in incomplete adoption or ineffective implementation.