cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Completeness of the Gaia-verse IV: The Astrometry Spread Function of Gaia DR2
Creators: name: Everall, Andrew
name: Boubert, Douglas
name: Koposov, Sergey E.
name: Smith, Leigh
name: Holl, Berry
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Gaia DR2 published positions, parallaxes and proper motions for an unprecedented 1,331,909,727 sources, revolutionising the field of Galactic dynamics. We complement this data with the Astrometry Spread Function (ASF), the expected uncertainty in the measured positions, proper motions and parallax for a non-accelerating point source. The ASF is a Gaussian function for which we construct the 5D astrometric covariance matrix as a function of position on the sky and apparent magnitude using the Gaia DR2 scanning law and demonstrate excellent agreement with the observed data. This can be used to answer the question `What astrometric covariance would Gaia have published if my star was a non-accelerating point source?'. The ASF will enable characterisation of binary systems, exoplanet orbits, astrometric microlensing events and extended sources which add an excess astrometric noise to the expected astrometry uncertainty. By using the ASF to estimate the unit weight error (UWE) of Gaia DR2 sources, we demonstrate that the ASF indeed provides a direct probe of the excess source noise. We use the ASF to estimate the contribution to the selection function of the Gaia astrometric sample from a cut on astrometric_sigma5d_max showing high completeness for $G<20$ dropping to $<1\%$ in underscanned regions of the sky for $G=21$. We have added an ASF module to the Python package SCANNINGLAW (https://github.com/gaiaverse/scanninglaw) through which users can access the ASF.
description: 17 pages, 18 figures, published in MNRAS
Single segment tests for the analysis of the core drilling process of concrete materials
Creators: name: Kansteiner, Michael
name: Biermann, Dirk
Publisher: name: International Conference on Stone and Concrete Machining (ICSCM)
Year: 2015
Subjects: grinding; core drilling; diamond; diamond impregnated tool; concrete; reinforced concrete

description: Diamond impregnated tools, like drill bits or circular saws, are used for the machining of mineral
materials like stones or the compound material concrete. Drill bits comprise several single diamond
impregnated segments which are attached to the top of the tool body by brazing or laser welding
processes. Fields of application of these tools can be found at the construction industry, the stone
processing and the mining industry. The segments consist of a sintered powder-metal matrix and
randomly distributed diamond grains. Hence, the number of exposed grains on the tool surface
varies even for tools of the same specification. To simplify the analysis of the core drilling process
with several segments and therefore diamonds in contact, tests with single segments were carried
out. Thus, the number of exposed grains is reduced to a manageable number. To analyse the
influence of grit size and concentration in diamond impregnated tools on the process behaviour
when machining concrete materials, path-controlled tests on a machining centre were conducted.
High performance concrete (C100) and reinforced concrete were machined and process forces
were measured to quantify the influence of the tool specification. Additional information were
gained by analysing the generated tool tracks.
description: International Conference on Stone and Concrete Machining (ICSCM), Vol 3 (2015)
Influence of chromium as carbide forming doping element on the diamond retention in diamond tools
Creators: name: Tillmann, W.
name: Tolan, M.
name: Lopes-Dias, N. F.
name: Zimpel, M.
name: Ferreira, M.
name: Paulus, M.
Publisher: name: International Conference on Stone and Concrete Machining (ICSCM)
Year: 2015
Subjects: Diamond tools; interface reactions; diamond retention; diamond-metal composites; metal diamond interface; SEM - analyses

description: Diamond tools are widely used in drill tools, wire saws or circular saws to machine very hard materials such as concrete or natural stone in the construction as well as extractive industries. The mechanical and physical properties, such of these materials call for high requirements concerning the diamond tools. In particular, the bonding between the diamond particles and the metallic binder is an essential criterion for the tool quality. It is known that the type and strength of bonding is influenced by the diamond-metal interaction that occurs during the sintering process. Depending on the element used as a metallic binder, different thermally induced chemical reactions between the diamond and the metallic matrix take place. These reactions are (1) carbide formation, (2) graphite formation, and (3) inert behavior. However, there is still a high demand concerning the research of the diamond-metal interaction influenced by a carbide forming element.
In this work, chromium as a carbide-forming element was used as a doping agent in order to increase the diamond retention in diamond tools. The elements iron, cobalt and nickel were selected as single metallic components due to their catalytic influence on the graphitization of diamonds; whereas three metallic matrix systems were additionally doped with 15% chromium. The samples were sintered by hot pressing. Furthermore, half of the samples were thermally treated in order to ensure a stronger thermal induction of the interfacial reactions. In order to analyze the bonding behavior of the diamonds in the metal matrix, the samples were broken and the interfacial area was analyzed by means scanning of electron microscopy. These experimental studies show an influence of the carbide-forming doping agent on the diamond-metal interaction.
description: International Conference on Stone and Concrete Machining (ICSCM), Vol 3 (2015)
Scratch tests with single diamond tools on reinforced concrete and its components for the analysis of the material separation
Creators: name: Kipp, Monika
name: Kansteiner, Michael
name: Biermann, Dirk
Publisher: name: International Conference on Stone and Concrete Machining (ICSCM)
Year: 2015
Subjects: scratch test; diamond tool; single grain diamond; material removal; reinforced concrete; concrete; process forces; large-chamber scanning electron microscope

description: Core drilling with diamond impregnated segments is a common process for the machining of
concrete or reinforced concrete. These materials are characterised by their structure consisting of
various components. This inhomogeneity influences the cutting process due to changing process
forces or varying chip formation. Therefore an analysis regarding the material separation of the single
components (cement stone, aggregates like basalt, steel as reinforcement) as well as of the
compound materials is necessary. As a basis to analyse the core drilling process and in order to
gain detailed knowledge concerning the material separation process of reinforced concrete and its
components, scratch tests with single diamonds and varying process strategies were conducted. In
analogy with the core drilling process, circular grooves were produced. For the scratch tests steel,
cement stone, basalt, high performance concrete and reinforced concrete were used as sample
materials. One test series was conducted on a machining centre with the focus on process forces
under varying process parameters such as cutting velocity or feed speed. Further experiments
focused on the analysis of the development of the scratches due to repeated scratching. For this
microscopic investigation a tribometer in combination with a large-chamber scanning electron
microscope was used.
description: International Conference on Stone and Concrete Machining (ICSCM), Vol 3 (2015)
Active Output Selection Strategies for Multiple Learning Regression Models
Creators: name: Prochaska, Adrian
name: Pillas, Julien
name: Bäker, Bernard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Active learning shows promise to decrease test bench time for model-based drivability calibration. This paper presents a new strategy for active output selection, which suits the needs of calibration tasks. The strategy is actively learning multiple outputs in the same input space. It chooses the output model with the highest cross-validation error as leading. The presented method is applied to three different toy examples with noise in a real world range and to a benchmark dataset. The results are analyzed and compared to other existing strategies. In a best case scenario, the presented strategy is able to decrease the number of points by up to 30% compared to a sequential space-filling design while outperforming other existing active learning strategies. The results are promising but also show that the algorithm has to be improved to increase robustness for noisy environments. Further research will focus on improving the algorithm and applying it to a real-world example.
description: The paper is accepted for publication at ICPRAM 2021
A magnetically collimated jet from the evolved star W43A
Creators: name: Vlemmings, W. H. T.
name: Diamond, P. J.
name: Imai, H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first direct measurements of the magnetic field strength and direction in a collimated jet from an evolved star on its way to become a planetary nebula. Very Long Baseline Array (VLBA) observations of the linear and circular polarization of the water masers in the collimated jet of W43A reveal a strong toroidal magnetic field, indicating that the jet is magnetically collimated. The magnetic field strength in the jet extrapolated back to the stellar surface yields a surface field of several Gauss, consistent with the measurements of maser polarization in a large sample of evolved stars. The origin of the magnetic field is yet unknown, although the jet precession might point to the existence of a heavy planet or stellar companion. This is the first direct observational evidence for magnetic collimation in the jets, that likely play an important role in shaping planetary nebulae.
description: 4 pages, two figures. To appear in the proceedings of IAU Symp. 234, ``Planetary Nebulae in our Galaxy and Beyond.''
title: Dagstuhl Reports, Table of Contents, Volume 1, Issue 6, 2011
Creators: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2011
Subjects: subject: Table of Contents
subject: Frontmatter

description: Table of Contents, Frontmatter
description: Dagstuhl Reports, Volume 1, Issue 6, pages i-ii
Scheduling customer service representatives for the Workers’ Compensation Board of British Columbia
Creators: name: Sanegre, Rafael
Publisher: name: University of British Columbia
Year: 2009

description: The Workers' Compensations Board of British Columbia (WCB) operates 4 call centers in the province devoted to compensation services. This thesis describes a review of operations at the call center in the head office, located in Richmond, B.C. We identified the need for a mathematical model to schedule telephone operators (called CSRs in WCB) in order to minimize the workforce required, while assuring minimal staffing levels to provide good customer service. We developed two integer programming models and built an interface that would enable the supervisors to use the model interactively. We compared the results from the model to one of their schedules and found that the model used 5 fewer CSRs than currently in their schedule. The potential savings derived from such a test convinced management that WCB needed to acquire and implement software to schedule staff.
The infrared-dominated jet of 3C401
Creators: name: Chiaberge, Marco
name: Sparks, William. B.
name: Macchetto, F. Duccio
name: Perlman, Eric
name: Capetti, Alessandro
name: Balmaverde, Barbara
name: Floyd, David
name: O'Dea, Christopher
name: Axon, David J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a Hubble Space Telescope image of the FRII radio galaxy 3C 401, obtained at 1.6 microns with the NICMOS camera in which we identify the infrared counterpart of the brightest region of the radio jet. The jet has a complex radio structure and brightens where bending occurs, most likely as a result of relativistic beaming. We analyze archival data in the radio, optical and X-ray bands and we derive its spectral energy distribution. Differently from all of the previously known optical extragalactic jets, the jet in 3C401 is not detected in the X-rays even in a long 48ksec X-ray Chandra exposure and the infrared emission dominates the overall SED. We propose that the dominant radiation mechanism of this jet is synchrotron. The low X-ray emission is then caused by two different effects: i) the lack of any strong external photon field and ii) the shape of the electron distribution. This affects the location of the synchrotron peak in the SED, resulting in a sharp cut-off at energies lower than the X-rays. Thus 3C401 shows a new type of jet which has intermediate spectral properties between those of FRI, which are dominated by synchrotron emission up to X-ray energies, and FRII/QSO, which show a strong high-energy emission due to inverse-Compton scattering of external photons. This might be a clue for the presence of a continuous ``sequence'' in the properties of large scale jets, in analogy with the ``blazar sequence'' already proposed for sub-pc scale jets.
description: 7 pages, 5 figures, accepted for publication in the ApJ. A typo in the value of the radio to X-ray spectral index (sect. 5, paragraph 2, thanks to T. Cheung) and other minor corrections have been made
The kinematics of young and old stellar populations in nuclear rings of MUSE TIMER galaxies
Creators: name: Rosado-Belza, D.
name: Falcón-Barroso, J.
name: Knapen, J. H.
name: Bittner, A.
name: Gadotti, D. A.
name: Neumann, J.
name: de Lorenzo-Cáceres, A.
name: Méndez-Abreu, J.
name: Querejeta, M.
name: Martín-Navarro, I.
name: Sánchez-Blázquez, P.
name: Coelho, P. R. T.
name: Martig, M.
name: van de Ven, G.
name: Kim, T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Studying the stellar kinematics of galaxies is a key tool in the reconstruction of their evolution. However, the current measurements of the stellar kinematics are complicated by several factors, including dust extinction and the presence of multiple stellar populations. We use integral field spectroscopic data of four galaxies from the TIMER survey to explore and compare the kinematics measured in different spectral regions that are sensitive to distinct stellar populations. We derive the line-of-sight velocity and velocity dispersion of both a young (<2 Gyr) and an old stellar population from the spectral regions around the H$β$ line and the Ca II Triplet. In addition we obtain colour excess, mean age, and metallicity. We report a correlation of the colour excess with the difference in the kinematic parameters of the H$β$ line and the Ca II Triplet range, which are dominated by young and old stellar populations, respectively. Young stellar populations, located primarily in nuclear rings, have higher velocity dispersions than old ones. These differences in the rings are typically 10 km/s in velocity dispersion, but up to a mean value of 24 km/s in the most extreme case. Trends with age exist in the nuclear rings but are less significant than those with dust extinction. We report different degrees of correlation of these trends among the galaxies in the sample, which are related to the size of the Voronoi bins in their rings. No clear trends for the difference of line-of-sight velocity are observed. The absence of these trends can be explained as a consequence of the masking process of the H$β$ line during the kinematic extraction, as confirmed by dedicated simulations. Our study demonstrates that kinematic differences caused by different stellar populations can be identified in the central regions of nearby galaxies even from intermediate resolution spectroscopy.
description: 22 pages, 24 figures
Analysis of the cutting process for milling of marble and sandstone with an end mill cutter
Creators: name: Uhlmann, Eckart
name: Manthei, Marcel
Publisher: name: International Conference on Stone and Concrete Machining (ICSCM)
Year: 2015
Subjects: Stone Milling; influence of cutting parameters; end mill cutter; high speed video analysis; particle distribution analysis; Postaer Sandstone; Carrara Marble

description: Research has shown that it is possible to machine natural stone materials using end
mill cutters with geometrically defined cutting edges as they are used in metal cutting
processes. The milling process can be used as an energy efficient alternative to the
well-known grinding processes. A study of Fraunhofer IPK investigates the cutting
process for Postaer Sandstone and Carrara Marble using an end mill cutter. A high
speed video camera was used in order to analyze the cutting process. The produced
stone particles (“chips”) were sorted according to their size distribution and the
resulting surface roughness was measured in order to identify possible influences of
different cutting parameters. For the study, the depth of cut ap, the feed per tooth fz
and the cutting speed vc were varied. For the influence on the surface roughness,
results show that all three parameters have a significant influence when machining
marble. For the machining of sandstone, no significant influence has been identified.
The distribution of sandstone particles after the milling process is independent from
the cutting parameters as well, only the depth of cut shows an influence for marble.
The high speed videography of the cutting process shows obvious differences
between the two investigated natural stone materials. The chip formation for Carrara
Marble is a rather continuous process whereas for sandstone the cutting process is
rather random and can hardly be influenced by altering the process parameters.
description: International Conference on Stone and Concrete Machining (ICSCM), Vol 3 (2015)
Combined Constraints on First Generation Leptoquarks
Creators: name: Crivellin, Andreas
name: Müller, Dario
name: Schnell, Luc
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this article we perform a combined analysis of low energy precision constraints and LHC searches for leptoquarks which couple to first generation fermions. Considering all ten leptoquark representations, five scalar and five vector ones, we study at the precision frontier the constraints from $K\toπνν$, $K\toπe^+e^-$, $K^0-\bar K^0$ and $D^0-\bar D^0$ mixing, as well as from experiments searching for parity violation (APV and QWEAK). We include LHC searches for $s$-channel single resonant production, pair production and Drell-Yan-like signatures of leptoquarks. Interestingly, we find that the recent non-resonant di-lepton analysis of ATLAS provides stronger bounds than the resonant searches recasted so far to constrain $t$-channel production of leptoquarks. Taking into account all these bounds, we observe that none of the leptoquark representations can address the so-called "Cabibbo angle anomaly" via a direct contribution to super-allowed beta decays.
description: 12 pages, 3 figures, 2 tables, missing factor 2 in non-resonant ATLAS bounds corrected
Development of Cuttability Chart for a Marble Cutting with Monowire Cutting Machine
Creators: name: Yilmazkaya, Emre
name: Ozcelik, Yilmaz
Publisher: name: International Conference on Stone and Concrete Machining (ICSCM)
Year: 2015
Subjects: Monowire cutting; diamond wire; marble; wear; energy; optimization

description: Monowire block cutting machines can be used for natural stone block squaring operations and slab
cutting operations from natural stone blocks. The efficient use of these machines reduces
operating costs by ensuring less diamond wire wear and longer wire life at high speeds. The
purpose of this study is to develop cuttability chart for real marble sample based on unit wear and
unit energy in monowire cutting system and also perform cutting optimization. For this purpose, the
full automatically servo controlled monowire cutting system which can cut blocks in three
dimensions were developed in Hacettepe University Mining Engineering Department. Cutting
experiments were performed at different wire rotation speed (peripheral speed) and wire downward
movement speed (cutting speed) on the real marble block which was transported to the laboratory.
A cuttability abacus in monowire cutting system taking into consideration the unit energy
consumption during cutting operation and unit wear on diamond beads was developed with Design
Expert 7.1 software for real marble sample by using the results obtained.
description: International Conference on Stone and Concrete Machining (ICSCM), Vol 3 (2015)
Achirus declivis Chabanaud 1940
Creators: name: Angulo, Arturo
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Pleuronectiformes
Achiridae
Achirus
Achirus declivis

description: 1) Achirus declivis Chabanaud, 1940,
Achiridae.
Plainfin Sole; Suela Simple (Fig. 3I).
New record for the Matina River basin; previous records of the species in Costa Rican freshwaters were restricted to the Tortuguero and Parismina River basins. New elevational record (7 m. a.s.l.); previous records of the species in Costa Rican freshwaters were restricted to 0– 3 m.a.s.l. Basis of the record: Three specimens were captured in the río Moín, at the Puerto Fluvial JAPDEVA, Limón (09.99745, -83.08077), at 7 m. a.s.l., on December 14, 2006, by Karina Rodríguez (UCR 2761-003).
description: Published as part of Angulo, Arturo, 2021, New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist, pp. 1-72 in Zootaxa 5083 (1) on page 11, DOI: 10.11646/zootaxa.5083.1.1, http://zenodo.org/record/5800630
D7.2 Consolidated training needs assessment
Creators: name: Forest, Maxime
name: Mergaert, Lut
Publisher: name: Zenodo
Year: 2021
Subjects: Gender training
Capacity building
Self-Assessment

description: This document is the Consolidated training needs assessment (D7.2), compiled by the WP leader Yellow Window (YW). It was supported by the Checklist and Instructions for gender training needs assessment (D7.1) presented at the end of April 2019, which was designed to enable each implementing partner to identify at the level of its organization their capabilities in terms of knowledge and skills for carrying out structural change. On the basis of this self-assessment exercise, which aimed at highlighting both available and missing capabilities, YW was has assessed the partners’ needs in terms of training and capacity-building.
title: Dagstuhl Reports, Table of Contents, Volume 1, Issue 7, 2011
Creators: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2011
Subjects: subject: Table of Contents
subject: Frontmatter

description: Table of Contents, Frontmatter
description: Dagstuhl Reports, Volume 1, Issue 7, pages i-ii
The tensor analytical relationships of Dirac's equation
Creators: name: Lanczos, Cornelius
Publisher: name: arXiv
Year: 2005
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: Dirac's equation of the electron will be discussed by using quaternions as the basis of a new formalism which seems to be very well adapted to the problem. The transformation properties of the equations as well as the invariant and covariant [bilinear] constructions of Dirac's theory are developed uniformly and systematically. A method of obtaining a covariant formulation of the equations using customary tensor calculus also offers itself unequivocally if we duplicate the Dirac equations. (Editorial note: In this paper Lanczos introduces his ``fundamental equation,'' Eq. (54), from which two Dirac fields forming an isospin doublet, or two spin 1 fields of opposite parities, derive.)
description: 31 pages. Initial translation by Josef Illy and Judith Konstag Masko. Final translation and editorial notes by Andre Gsponer
Analytical Design for Full-space Spatial Power Dividers Using Metagratings
Creators: name: Rajabalipanah, Hamid
name: Abdolali, Ali
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We present a rigorous theoretical framework for designing full-space spatial power dividers using metagratings. In our study, the current restrictions of spatial power dividing platforms such as reflection-only performance, operating at normal incidence, and small reflection/refraction angles have been totally relaxed. A modal expansion analysis based on Floquet-Bloch (FB) theorem is established so that a discrete set of spatial harmonics is considered in both reflection and transmission sides of a compound metallic grating in which the unknown coefficients are calculated by applying proper boundary conditions. By eliminating the unwanted scattering harmonics, the proposed metagrating has the ability to realize different functionalities from perfect anomalous refraction to reflection-transmission spatial power dividing, without resorting to full-wave numerical optimizations. The numerical simulations confirm well the theoretical predictions. Our findings not only offer possibilities to realize arbitrary spatial power dividers but also reveal a simple alternative for beamforming array antennas.
K-core decomposition of Internet graphs: hierarchies, self-similarity and measurement biases
Creators: name: Alvarez-Hamelin, José Ignacio
name: Dall'Asta, Luca
name: Barrat, Alain
name: Vespignani, Alessandro
Publisher: name: arXiv
Year: 2005
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We consider the $k$-core decomposition of network models and Internet graphs at the autonomous system (AS) level. The $k$-core analysis allows to characterize networks beyond the degree distribution and uncover structural properties and hierarchies due to the specific architecture of the system. We compare the $k$-core structure obtained for AS graphs with those of several network models and discuss the differences and similarities with the real Internet architecture. The presence of biases and the incompleteness of the real maps are discussed and their effect on the $k$-core analysis is assessed with numerical experiments simulating biased exploration on a wide range of network models. We find that the $k$-core analysis provides an interesting characterization of the fluctuations and incompleteness of maps as well as information helping to discriminate the original underlying structure.
title: Dagstuhl Reports, Table of Contents, Volume 1, Issue 8, 2011
Creators: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2011
Subjects: subject: Table of Contents
subject: Frontmatter

description: Table of Contents, Frontmatter
description: Dagstuhl Reports, Volume 1, Issue 8, pages i-ii
Influence of diamond wire pretension on process behaviour
Creators: name: Denkena, B.
name: Grove, T.
name: Tatzig, L.
Publisher: name: International Conference on Stone and Concrete Machining (ICSCM)
Year: 2015
Subjects: cut-off grinding; wire sawing; wire pretension; diamond tools; dismantling

description: Wire sawing with diamond tools is a highly flexible cut-off grinding process with regard to machinable
component structure and composition. Therefore, it is nowadays not only used in the processing of
natural stone, but also increasingly deployed on dismantling of nuclear or industrial plants. In this
field of application, concrete, reinforced concrete and steel have to be cut. In particular, the
processing of reinforcements and steel structures results in higher process forces compared to the
machining of natural stone or concrete. Consequently, the diamond wire is deflected leading to
decreased cutting performance in terms of the material removal rate. To overcome these challenges,
the diamond wire can be pretensioned which directly affects the stiffness of the tool. Thereby, the
deflection of the diamond wire can be reduced and the material removal rate can be increased.
This paper presents initial results concerning the influence of the wire pretension on the process
behaviour of a diamond wire when cutting steel S355JR. For these investigations, the wire
pretension was varied in a range of 300 N up to 2000 N. For the evaluation of the process behaviour,
resulting process forces, cutting power, wire deflection and surface removal rate were analysed.
description: International Conference on Stone and Concrete Machining (ICSCM), Vol 3 (2015)
Reply on `Comment on The relativistic Aharonov-Bohm-Coulomb system with position-dependent mass'
Creators: name: Oliveira, R. R. S.
name: Filho, A. A. Araujo
name: Maluf, R. V.
name: Almeida, C. A. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that the results of our paper are correct, although the use of the chirality operator $γ_5=σ_1$ in the paper is not correct, as fairly the authors of the Comment stated.
description: 3 pages
Amatitlania myrnae
Creators: name: Angulo, Arturo
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Cichlidae
Amatitlania
Amatitlania myrnae

description: 2) Amatitlania myrnae (Loiselle, 1997),
Cichlidae.
Topaz Cichlid, Myrna’s Cichlid; Mojarra, Chogorra, Mojarra Topaz, Mojarra de Myrna (Fig. 3J).
New record for the Matina River basin; previous records of the species in Costa Rican freshwaters were restricted to the Sixaola River basin. New elevational record (13 m. a.s.l.); previous records of the species in Costa Rican freshwaters were restricted to 40– 150 m.a.s.l. Basis of the record: Two specimens were captured in the río Estrella, Valle La Estrella, Limón (9.77552, -82.93240), at 13 m. a.s.l., on April 6, 2014, by Arturo Angulo. Additional captures have been reported northwest in the Bananito river, Limón (H. van Heusden & J. San Gil 2021, pers. Comm.).
description: Published as part of Angulo, Arturo, 2021, New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist, pp. 1-72 in Zootaxa 5083 (1) on page 13, DOI: 10.11646/zootaxa.5083.1.1, http://zenodo.org/record/5800630
Geography of symplectic 4-manifolds with Kodaira dimension one
Creators: name: Baldridge, Scott
name: Li, Tian-Jun
Publisher: name: arXiv
Year: 2005
Subjects: subject: Symplectic Geometry (math.SG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57R17, 53D05, 57R57, 57M60

description: The geography problem is usually stated for simply connected symplectic 4-manifolds. When the first cohomology is nontrivial, however, one can restate the problem taking into account how close the symplectic manifold is to satisfying the conclusion of the Hard Lefschetz Theorem, which is measured by a nonnegative integer called the degeneracy. In this paper we include the degeneracy as an extra parameter in the geography problem and show how to fill out the geography of symplectic 4-manifolds with Kodaira dimension 1 for all admissible triples.
description: Published by Algebraic and Geometric Topology at http://www.maths.warwick.ac.uk/agt/AGTVol5/agt-5-15.abs.html
Proof-Carrying CRDTs allow Succinct Non-Interactive Byzantine Update Validation
Creators: name: Marx, Nick
name: Jacob, Florian
name: Hartenstein, Hannes
Publisher: name: Association for Computing Machinery (ACM)
Year: 2025

description: Conflict-free replicated data types (CRDTs) are distributed algorithms that enable concurrent queries and updates without coordination with other processes, but still provide eventual consistency. In crash fault environments, processes adhere to the protocol and only send valid CRDT updates. But in Byzantine environments, processes need to individually ensure the validity of all updates. As the validity of an update may depend on all previous updates, Byzantine-tolerant CRDT processes typically must keep a grow-only set of all applied updates. We apply the concept of proof-carrying data to CRDTs to enable succinct non-interactive validation of updates, i.e., processes neither need knowledge of all previous updates nor coordination. Such proof-carrying CRDTs allow update validation in constant time and space, even in Byzantine environments. In a case study, we implemented and evaluated the performance of two proof-carrying CRDTs: a straightforward increment-only counter, as well as an update history CRDT based on the Matrix group communication system. We conclude that proof-carrying data has achieved practical relevance for applications in Byzantine CRDTs.
Self-organizing traffic lights: A realistic simulation
Creators: name: Cools, Seung-Bae
name: Gershenson, Carlos
name: D'Hooghe, Bart
Publisher: name: arXiv
Year: 2006
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Artificial Intelligence (cs.AI)
subject: Computational Physics (physics.comp-ph)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We have previously shown in an abstract simulation (Gershenson, 2005) that self-organizing traffic lights can improve greatly traffic flow for any density. In this paper, we extend these results to a realistic setting, implementing self-organizing traffic lights in an advanced traffic simulator using real data from a Brussels avenue. On average, for different traffic densities, travel waiting times are reduced by 50% compared to the current green wave method.
description: 12 pages, two figures. An epilogue was added to this chapter for the 2nd Edition of the book
Scalar field cosmological models with finite scale factor singularities
Creators: name: Cannata, Francesco
name: Kamenshchik, Alexander Yu.
name: Regoli, Daniele
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct a scalar field based cosmological model, possessing a cosmological singularity characterized by a finite value of the cosmological radius and an infinite scalar curvature. Using the methods of the qualitative theory of differential equations, we give a complete description of the cosmological evolutions in the model under consideration. There are four classes of evolutions, two of which have finite lifetimes, while the other two undergo an infinite expansion.
description: 6 pages, 3 figures
Adding inverses to diagrams encoding algebraic structures
Creators: name: Bergner, Julia E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 55U10, 18B40, 18C10, 55P35

description: We modify a previous result, which showed that certain diagrams of spaces are essentially simplicial monoids, to construct diagrams of spaces which model simplicial groups. Furthermore, we show that these diagrams can be generalized to models for Segal groupoids. We then modify Segal's model for simplicial abelian monoids in such a way that it becomes a model for simplicial abelian groups.
description: 24 pages, final version; erratum included at the end. arXiv admin note: text overlap with arXiv:math/0508416
The Radio Afterglow and Host Galaxy of the Dark GRB 020819
Creators: name: Jakobsson, P.
name: Frail, D. A.
name: Fox, D. B.
name: Moon, D. -S.
name: Price, P. A.
name: Kulkarni, S. R.
name: Fynbo, J. P. U.
name: Hjorth, J.
name: Berger, E.
name: McNaught, R. H.
name: Dahle, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Of the fourteen gamma-ray bursts (GRBs) localized to better than 2' radius with the SXC on HETE-2, only two lack optical afterglow detections, and the high recovery rate among this sample has been used to argue that the fraction of truly dark bursts is ~10%. While a large fraction of earlier dark bursts can be explained by the failure of ground-based searches to reach appropriate limiting magnitudes, suppression of the optical light of these SXC dark bursts seems likely. Here we report the discovery and observation of the radio afterglow of GRB 020819, an SXC dark burst, which enables us to identify the likely host galaxy (probability of 99.2%) and hence the redshift (z=0.41) of the GRB. The radio light curve is qualitatively similar to that of several other radio afterglows, and may include an early-time contribution from the emission of the reverse shock. The proposed host is a bright R = 19.5 mag barred spiral galaxy, with a faint R ~ 24.0 mag "blob'' of emission, 3" from the galaxy core (16 kpc in projection), that is coincident with the radio afterglow. Optical photometry of the galaxy and blob, beginning 3 hours after the burst and extending over more than 100 days, establishes strong upper limits to the optical brightness of any afterglow or associated supernova. Combining the afterglow radio fluxes and our earliest R-band limit, we find that the most likely afterglow model invokes a spherical expansion into a constant-density (rather than stellar wind-like) external environment; within the context of this model, a modest local extinction of A_V ~ 1 mag is sufficient to suppress the optical flux below our limits.
description: 7 pages, 2 figures. ApJ, in press. For more info on dark bursts, see http://www.astro.ku.dk/~pallja/dark.html
Comparison of the Cost Metrics for Reversible and Quantum Logic Synthesis
Creators: name: Maslov, Dmitri
name: Miller, D. Michael
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A breadth-first search method for determining optimal 3-line circuits composed of quantum NOT, CNOT, controlled-V and controlled-V+ (NCV) gates is introduced. Results are presented for simple gate count and for technology motivated cost metrics. The optimal NCV circuits are also compared to NCV circuits derived from optimal NOT, CNOT and Toffoli (NCT) gate circuits. The work presented here provides basic results and motivation for continued study of the direct synthesis of NCV circuits, and establishes relations between function realizations in different circuit cost metrics.
description: More results added. 10 pages, 8 figures
title: Dagstuhl Reports, Table of Contents, Volume 1, Issue 9, 2011
Creators: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2012
Subjects: subject: Table of Contents
subject: Frontmatter

description: Table of Contents, Frontmatter
description: Dagstuhl Reports, Volume 1, Issue 9, pages i-ii
Phase space formulation of the Abelian and non-Abelian quantum geometric tensor
Creators: name: Gonzalez, Diego
name: Gutierrez-Ruiz, Daniel
name: Vergara, J. David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The geometry of the parameter space is encoded by the quantum geometric tensor, which captures fundamental information about quantum states and contains both the quantum metric tensor and the curvature of the Berry connection. We present a formulation of the Berry connection and the quantum geometric tensor in the framework of the phase space or Wigner function formalism. This formulation is obtained through the direct application of the Weyl correspondence to the geometric structure under consideration. In particular, we show that the quantum metric tensor can be computed using only the Wigner functions, which opens an alternative way to experimentally measure the components of this tensor. We also address the non-Abelian generalization and obtain the phase space formulation of the Wilczek-Zee connection and the non-Abelian quantum geometric tensor. In this case, the non-Abelian quantum metric tensor involves only the non-diagonal Wigner functions. Then, we verify our approach with examples and apply it to a system of $N$ coupled harmonic oscillators, showing that the associated Berry connection vanishes and obtaining the analytic expression for the quantum metric tensor. Our results indicate that the developed approach is well adapted to study the parameter space associated with quantum many-body systems.
description: 22 pages
Systematics of heavy-ion fusion hindrance at extreme sub-barrier energies
Creators: name: Jiang, C. L.
name: Back, B. B.
name: Esbensen, H.
name: Janssens, R. V. F.
name: Rehm, abd K. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The recent discovery of hindrance in heavy-ion induced fusion reactions at extreme sub-barrier energies represents a challenge for theoretical models. Previously, it has been shown that in medium-heavy systems, the onset of fusion hindrance depends strongly on the "stiffness" of the nuclei in the entrance channel. In this work, we explore its dependence on the total mass and the $Q$-value of the fusing systems and find that the fusion hindrance depends in a systematic way on the entrance channel properties over a wide range of systems.
description: Submitted to Phys. Rev. Lett., 5 pages, 3 figures
Amphilophus citrinellus
Creators: name: Angulo, Arturo
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Cichlidae
Amphilophus
Amphilophus citrinellus

description: 3) Amphilophus citrinellus (Günther, 1864),
Cichlidae.
Midas Cichlid; Mojarra, Mojarra Midas, Cíclido Midas (Fig. 3K).
New record for the Bebedero River basin; previous records of the species in Costa Rican freshwaters were restricted to Atlantic drainages. New elevational record (43 m. a.s.l.); previous records of the species in Costa Rican freshwaters were restricted to 0– 12 m.a.s.l. Basis of the record: One specimen was captured in the río Bebedero, near Paso Real, Cañas, Guanacaste (10.43318, -85.15697), at 32 m. a.s.l., on August 7, 2021, by Luis Bolivar Montero-Chacón. Additional specimens (3) were captured in Buena Vista, Guatuso, Alajuela (10.76171, -84.78497), at 43 m. a.s.l., on June 20, 2020, by Arturo Angulo et al.
description: Published as part of Angulo, Arturo, 2021, New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist, pp. 1-72 in Zootaxa 5083 (1) on page 13, DOI: 10.11646/zootaxa.5083.1.1, http://zenodo.org/record/5800630
title: Dagstuhl Reports, Table of Contents, Volume 1, Issue 10, 2011
Creators: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2012
Subjects: subject: Table of Contents
subject: Frontmatter

description: Table of Contents, Frontmatter
description: Dagstuhl Reports, Volume 1, Issue 10, pages i-ii
"You should marry me now. This is a director’s order": politeness and discourse strategies by Korean women in non-traditional authority positions
Creators: name: Shin, Jee-Weon
Publisher: name: University of British Columbia
Year: 2009

description: The subject of language and gender has been a central problem for linguists and social scientists for much of the last century. Yet in all this time the study of Korean language and gender has been largely undeveloped. This study contributes to that neglected area of Korean language and gender by examining how working women in positions of power employ politeness in their request speech acts, and what type of discourse strategies they utilize to enact their authority in non-traditional domains. This study compares the use of various speech levels and honorifics by both male and female executives as observed in several Korean television dramas. Results show that female superiors use fewer polite directives than male superiors, thereby confuting the traditional claim that women's speech is more polite than men's. The second major finding is that female superiors modify and defeminize their speech in order to enact their authority. On the whole, female superiors embodied the status difference with their subordinates by use of less polite directives, whereas male superiors minimized an asymmetrical alignment with their subordinates by use of more polite directives. These unexpected findings are explained through a consideration of three social variables involved in the interaction; social distance between superior and the subordinate, differences in age, and differences in status. The study thus proves that the context of interaction is the key to explaining why members in one sex group utilize more polite directives than the other, and that sex of the speaker is only a partial determinant in the language choice made by women and men.
The role of spin-flip assisted or orbital mixing tunneling on transport through strongly correlated multilevel quantum dot
Creators: name: Krychowski, D.
name: Lipiński, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using the slave boson Kotliar-Ruckenstein approach (SBMFA) for N level Anderson model, we compare fully symmetric SU(N) Kondo resonances occurring for spin and orbital conserving tunneling with many-body resonances for the dot with broken symmetry caused by spin, orbital or full spin-orbital mixing. As a result of interorbital or spin flip processes new interference paths emerge, which manifests in the occurrence of antibonding Dicke like and bonding Kondo like resonances. The analytical expressions for linear conductances and linear temperature thermopower coefficient for arbitrary N are found.
description: 5 pages, 4 figures
title: Dagstuhl Reports, Table of Contents, Volume 1, Issue 11, 2011
Creators: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2012
Subjects: subject: Table of Contents
subject: Frontmatter

description: Table of Contents, Frontmatter
description: Dagstuhl Reports, Volume 1, Issue 11, pages i-ii
Competitive density waves in quasi-one-dimensional electron systems
Creators: name: Bissola, Samuele
name: Parola, Alberto
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the nature of the ground state of the one-dimensional t-J model coupled to adiabatic phonons by use of the Lanczos technique at quarter filling. Due to the interplay between electron-electron and electron-phonon interactions, the model undergoes instabilities toward the formation of lattice and charge modulations. Moderate on-site and intra-site electron-phonon couplings lead to a competition of different spin-Peierls and dimerized states. In the former case two electrons belong to the unit cell and we expect a paramagnetic band insulator state, while lattice dimerization leads to a Mott insulating state with quasi long range antiferromagnetic order. The zero temperature phase diagram is obtained as a function of intra-site and inter-site electron-phonon couplings, analytically in the $J\to 0$ limit and numerically at finite J/t.
description: 7 pages, 7 figures, to be published in Phys. Rev. B