cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Stellar Population Astrophysics (SPA) with the TNG: Stock 2, a little-studied open cluster with an eMSTO
Creators: name: Alonso-Santiago, J.
name: Frasca, A.
name: Catanzaro, G.
name: Bragaglia, A.
name: Andreuzzi, G.
name: Carrera, R.
name: Carretta, E.
name: Casali, G.
name: D'Orazi, V.
name: Fu, X.
name: Giarrusso, M.
name: Lucatello, S.
name: Magrini, L.
name: Origlia, L.
name: Spina, L.
name: Vallenari, A.
name: Zhang, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Stock 2 is a little-studied open cluster that shows an extended main-sequence turnoff (eMSTO). In order to investigate this phenomenon and characterise the cluster itself we performed high-resolution spectroscopy in the framework of the Stellar Population Astrophysics (SPA) project. We employed the High Accuracy Radial velocity Planet Searcher in North hemisphere spectrograph (HARPS-N) at the Telescopio Nazionale Galileo (TNG). We completed our observations with additional spectra taken with the Catania Astrophysical Observatory Spectrograph (CAOS). In total we observed 46 stars (dwarfs and giants), which represent, by far, the largest sample collected for this cluster to date. We provide the stellar parameters, extinction, radial and projected rotational velocities for most of the stars. Chemical abundances for 21 species with atomic numbers up to 56 have also been derived. We notice a differential reddening in the cluster field whose average value is 0.27 mag. It seems to be the main responsible for the observed eMSTO, since it cannot be explained as the result of different rotational velocities, as found in other clusters. We estimate an age for Stock 2 of 450$\pm$150 Ma which corresponds to a MSTO stellar mass of $\approx$2.8 M$_{\odot}$. The cluster mean radial velocity is around 8.0 km s$^{-1}$. We find a solar-like metallicity for the cluster, [Fe/H]=$-$0.07$\pm$0.06, compatible with its Galactocentric distance. MS stars and giants show chemical abundances compatible within the errors, with the exceptions of Barium and Strontium, which are clearly overabundant in giants, and Cobalt, which is only marginally overabundant. Finally, Stock 2 presents a chemical composition fully compatible with that observed in other open clusters of the Galactic thin disc.
description: Accepted for publication in Astronomy and Astrophysics; 18 pages, 13 figures, 12 tables
Accurate \textit{ab initio} calculations of RaF electronic structure indicate the need for more laser-spectroscopical measurements
Creators: name: Zaitsevskii, Andrei
name: Skripnikov, Leonid V.
name: Mosyagin, Nikolai S.
name: Isaev, Timur
name: Berger, Robert
name: Breier, Alexander A.
name: Giesen, Thomas F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Recently a breakthrough has been achieved in laser-spectroscopic studies of short-lived radioactive compounds with the first measurements of the radium monofluoride molecule (RaF) UV/vis spectra. We report results from high accuracy \emph{ab initio} calculations of the RaF electronic structure for ground and low-lying excited electronic states. Two different methods agree excellently with experimental excitation energies from the electronic ground state to the $^2Π_{1/2}$ and $^2Π_{3/2}$ states, but lead consistently and unambiguously to deviations from experimental-based adiabatic transition energy estimates for the $^2Σ_{1/2}$ excited electronic state and show that more measurements are needed to clarify spectroscopic assignment of the $^2Δ$ states.
description: 7 pages, 1 figure, 1 table
Valentin, Christoph: Ultramontanisierung durch die päpstliche Diplomatie? Der Apostolische Nuntius Michele Viale Prelà in München (1838–1845)
Creators: name: Riester, Andreas M.
Publisher: name: Theologische Revue
Year: 2021

description: Theologische Revue, Bd. 117 (2021): November
Intertwiner dynamics in the flipped vertex
Creators: name: Alesci, Emanuele
name: Bianchi, Eugenio
name: Magliaro, Elena
name: Perini, Claudio
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We continue the semiclassical analysis, started in a previous paper, of the intertwiner sector of the flipped vertex spinfoam model. We use independently both a semi-analytical and a purely numerical approach, finding the correct behavior of wave packet propagation and physical expectation values. In the end, we show preliminary results about correlation functions.
description: 12 pages, 7 figures
Controlling the polarisation correlation of photon pairs from a charge-tuneable quantum dot
Creators: name: Young, R. J.
name: Dewhurst, S. J.
name: Stevenson, R. M.
name: Shields, A. J.
name: Atkinson, P.
name: Cooper, K.
name: Ritchie, D. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Correlation between the rectilinear polarisations of the photons emitted from the biexciton decay in a single quantum dot is investigated in a device which allows the charge-state of the dot to be controlled. Optimising emission from the neutral exciton states maximises the operating efficiency of the biexciton decay. This is important for single dot applications such as a triggered source of entangled photons. As the bias on the device is reduced correlation between the two photons is found to fall dramatically as emission from the negatively charged exciton becomes significant. Lifetime measurements demonstrate that electronic spin-scattering is the likely cause.
description: 3 figures
Synthesis of Load and Feeder Models Using Point on Wave Measurement Data
Creators: Sameer Nekkalapu
Vijay Vittal
John Undrill
Brian Keel
Bo Gong
and Kenneth Brown
Publisher: name: IEEE
Year: 2021

This paper describes a novel method to synthesize load and feeder models, by estimating the load composition and the load parameters, using instantaneous voltage and current measurements, obtained at the distribution level, from disturbance events.
This paper describes a novel method to synthesize load and feeder models, by estimating the load composition and the load parameters, using instantaneous voltage and current measurements, obtained at the distribution level, from disturbance events. A novel feeder model structure has been proposed in this work comprising of single-phase loads, three-phase loads, impedance loads, distribution transformers and distribution line segments. The load composition of the proposed feeder models and the motor load parameters are determined using a non-linear least squares algorithm integrated with an electromagnetic transient (EMT) analysis tool PSCAD. The efficacy of the proposed algorithm is examined for feeders at different physical locations and with distinctly varied load characteristics. Using this approach, parameters of the motor loads have been obtained within a fixed set of bounded values for each corresponding parameter. The ability of the proposed feeder and load models to capture severe fault induced delayed voltage recovery events (FIDVR) has also been discussed here.
A ridesharing simulation model that considers dynamic supply-demand interactions
Creators: name: Yao, Rui
name: Bekhor, Shlomo
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: This paper presents a new ridesharing simulation model that accounts for dynamic driver supply and passenger demand, and complex interactions between drivers and passengers. The proposed simulation model explicitly considers driver and passenger acceptance/rejection on the matching options, and cancelation before/after being matched. New simulation events, procedures and modules have been developed to handle these realistic interactions. Ridesharing pricing bounds that result in high matching option accept rate are derived. The capabilities of the simulation model are illustrated using numerical experiments. The experiments confirm the importance of considering supply and demand interactions and provide new insights to ridesharing operations. Results show that higher prices are needed to attract drivers with short trip durations to participate in ridesharing, and larger matching window could have negative impacts on overall ridesharing success rate. Comparison results further illustrate that the proposed simulation model is able to replicate the predefined “true” success rate, in the cases that driver and passenger interactions occur.
The strange case of Na I in the atmosphere of HD209458 b: Reconciling low- and high-resolution spectroscopic observations G
Creators: name: Morello, Giuseppe
name: Casasayas-Barris, Núria
name: Orell-Miquel, Jaume
name: Pallé, Enric
name: Cracchiolo, Gianluca
name: Micela, Giuseppina
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Aims. We aim to investigate the origin of the discrepant results reported in the literature about the presence of Na I in the atmosphere of HD209458 b, based on low- and high-resolution transmission spectroscopy. Methods. We generated synthetic planetary atmosphere models and we compared them with the transmission light curves and spectra observed in previous studies. Our models account for the stellar limb-darkening and Rossiter-McLaughlin (RM) effects, and contemplate various possible scenarios for the planetary atmosphere. Results. We reconciled the discrepant results by identifying a range of planetary atmospheres that are consistent with previous low- and high-resolution spectroscopic observations. Either both datasets are interpreted as consistent with a total absence of Na I in the planetary atmosphere (with Hubble Space Telescope data being affected by limb darkening), or the terminator temperature of HD209458 b has to have an upper limit of about 1000K. In particular, we find that 1D transmission spectra with lower-than-equilibrium temperatures can also explain the previously reported detection of absorption signal at low resolution due to differential transit depth in adjacent bands, while the cores of the Na I D lines may be masked by the strong RM signal seen at high resolution. We also rule out high-altitude clouds, which would otherwise mask the absorption signal at low resolution, as the source of the discrepancies. Conclusions. This work highlights the synergies between different observing techniques, specifically low- and high-resolution spectroscopy, to fully characterise transiting exoplanet systems.
description: Accepted version to be published on A&A
De Morgan's law and the theory of fields
Creators: name: Caramello, Olivia
name: Johnstone, Peter
Publisher: name: arXiv
Year: 2008
Subjects: subject: Category Theory (math.CT)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 18B25

description: We show that the classifying topos for the theory of fields does not satisfy De Morgan's law, and we identify its largest dense De Morgan subtopos as the classifying topos for the theory of fields of nonzero characteristic which are algebraic over their prime fields.
Anti-Genderismus in Europa. Allianzen von Rechtspopulismus und religiösem Fundamentalismus. Mobilisierung – Vernetzung – Transformation, hg. v. Sonja A. Strube / Rita Perintfalvi / Raphaela Hemet / Miriam Metze / Cicek Sahbaz
Creators: name: Elsner, Regina
Publisher: name: Theologische Revue
Year: 2021

description: Theologische Revue, Bd. 117 (2021): November
ICTUSnet WP 3.3 Virtual Machine Image (OVA 2 format)
Creators: name: González-García, Juan
name: Estupiñán-Romero, Francisco
name: Tellería-Orriols, Carlos
name: Bernal-Delgado, Enrique
Publisher: name: Zenodo
Year: 2019
Subjects: ictusnet
process mining
federated analysis
stroke
sudoe

description: Virtual Machine image in OVA 2 format required for the execution of the ICTUSnet project working package 3.3 Event Log Builder and Process Mining Pipeline. Tested with VirtualBox 6.x. For further information contact IACS Biocomputing Unit / Juan González García
description: SUDOE project. Grant Agreement: SOE2/P1/E0623
Reticulipeurus (Forcipurellus) formosanus
Creators: name: Gustafsson, Daniel R.
name: Zou, Fasheng
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Psocodea
Philopteridae
Reticulipeurus
Reticulipeurus formosanus

description: Reticulipeurus (Forcipurellus) formosanus (Uchida, 1917)
(Figs 1–8, 42)
Lipeurus formosanus Uchida, 1917: 179, fig. 1.
Oxylipeurus formosanus (Uchida), 1917; Clay 1938: 181.
Reticulipeurus formosanus [(Uchida, 1917)]; Kéler 1958: 327, figs 15, 33.
Type host. Arborophila crudigularis (Swinhoe, 1864) — Taiwan partridge.
Type locality. Mount Arisan, Nantou County, Taiwan.
Description. Preantennal head broadly rounded (Fig. 3). Male scape longer than female (Fig. 4), but not much wider and not otherwise modified; male flagellomere I with distal extension. Head chaetotaxy as in Fig. 3. Lateral margins of temples more or less parallel in male. Thoracic and abdominal segments and chaetotaxy as in Figs 1–2. Distal abdomen of male as in Fig. 42; sternal plate VII apparently separate from subgenital plate; stylus short, spatulate; distal margin of segment XI only barely concave, lateral corners not extended distally. Male genitalia as in Figs 5–7. Distal rugosity of mesosome somewhat coarse. Ventral sclerite with slightly concave anterior margin and only one visible gpmes on each side. Gonopore does not approach distal margin of mesosome. Parameres slender, convergent, with slightly bulging heads; pst 1 in distal fourth of paramere. Female sternal plate VII may have median bulge on distal margin (Fig. 8), but this is not clear due to poor sclerotisation. Median bulge of vulval margin pronounced, with 4–6 vss on each side; lateral lobes with 15–20 long, slender vms on each side. Lateral margin of claspers with 5–7 lateral setae on each side. Measurements as in Table 1.
Non-type material examined: Ex Arborophila crudigularis: 5♀, Taiwan [as Formosa], Nov. 1898, coll. R. Meinertzhagen, 3595, NHMUK010682415 (NHML). 1♁, 1♀, Taiwan [as Formosa], Apr. 1912, no collector, 16, NHMUK010682414 (NHML).
Remarks. Price et al. (2003: 203) listed Arborophila brunneopectus (Blyth, 1855) and Arborophila cambodiana Delacour & Jabouille, 1928 as hosts of “ Oxylipeurus formosanus ”, citing Emerson & Elbel (1957) as a source for A. brunneopectus, but none for A. cambodiana. We have not examined any specimen from A. cambodiana, but our specimens examined from A. brunneopectus are not conspecific with R. (F.) formosanus (see below under Reticulipeurus (Forcipurellus) species 1). Therefore, these two hosts are not included here.
description: Published as part of Gustafsson, Daniel R. & Zou, Fasheng, 2023, Species of Reticulipeurus Kéler, 1958 (Phthiraptera, Ischnocera, Oxylipeurus- complex) parasitic on species of Arborophila, with description of a new subgenus and three new species, pp. 496-520 in Zootaxa 5284 (3) on page 499, DOI: 10.11646/zootaxa.5284.3.3, http://zenodo.org/record/7929559
A Fast Penalty-Based Gauss-Seidel Method for Stochastic Unit Commitment With Uncertain Load and Wind Generation
Creators: Ananth M. Palani
Hongyu Wu
and Medhat M. Morcos
Publisher: name: IEEE
Year: 2021

In this paper, we apply a novel Penalty-Based Gauss-Seidel algorithm in solving stochastic network-constrained unit commitment using an exact augmented Lagrangian representation with proven convergence.
Stochastic network-constrained unit commitment (S-NCUC) can be used to manage the uncertainty of an increasing penetration level of renewable energy effectively. However, the drawbacks of the progressive hedging algorithm (PHA) based solutions are that they are not provably convergent due to the non-convexity of S-NCUC. Additionally, the solution obtained is usually fractional-valued (non-binary) and therefore not readily implementable. In this paper, we apply a novel Penalty-Based Gauss-Seidel (PBGS) algorithm in solving S-NCUC using an exact augmented Lagrangian representation with proven convergence. To improve the computational efficiency of the PBGS, we further propose an accelerating technique with rigorous proof to skip solving scenarios when certain conditions are met during iterations. We numerically validate the proposed algorithms on the IEEE 118-bus system and a practically-sized ERCOT-like system, both with variable wind generation. Numerical results demonstrate the efficacy of the proposed algorithms in yielding high-quality S-NCUC solutions. The merits of the proposed algorithms are also revealed in comparison with PHA and extensive-form (EF) based mixed-integer programming solutions.
Climate Change Vulnerability in Agriculture Sector: Indexing and Mapping of Four Southern Indian States
Creators: name: Sridevi, G.
name: Jyotishi, Amalendu
name: Mahapatra, Sushanta
name: Jagadeesh, G.
name: Bedamatta, Satyasiba
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: SECS-P/01 Economia politica

description: Agriculture is the sector most vulnerable to climate change due to its high dependence on climate and weather conditions. Climate change is a main challenge for agriculture, food security and rural livelihoods for millions of people in India. Among India’s population of more than one billion people, about 68% are directly or indirectly involved in the agricultural sector. This sector is particularly vulnerable to present-day climate variability. In this paper an attempt is made to map and analyze the vulnerability to climate change in different districts of four south Indian states: Andhra Pradesh, Karnataka, Tamil Nadu and Kerala. We have taken five sources of vulnerability indicators: socio-demographic, climatic, agricultural, occupational and common property resources vulnerabilities to compute the composite vulnerability index. The composite vulnerability index suggests that, Adilabad, Chamarajanagar, Thiruvarur and Kasaragod are the most vulnerable districts of Andhra Pradesh, Karnataka, Tamil Nadu and Kerala respectively, whereas Hyderabad, Belgaum, Thoothukkudi, Kottayam are the least vulnerable districts.
Shaping single walled nanotubes
Creators: name: Zobelli, Alberto
name: Gloter, Alexandre
name: Ewels, Chris P.
name: Colliex, Christian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We show that electron irradiation in a dedicated scanning transmission microscope can be used as a nano-electron-lithography technique allowing the controlled reshaping of single walled carbon and boron nitride nanotubes. The required irradiation conditions have been optimised on the basis of total knock-on cross sections calculated within density functional based methods. It is then possible to induce morphological modifications, such as a change of the tube chirality, by removing severals tens of atoms with a nanometrical spatial resolution. These irradiation techniques could open new opportunities for nano-engeneering a large variety of nanostructured materials.
description: article + supporting materials
Volume 9: Issue 1: Data and Cyberphysical Systems
Creators: Various
Publisher: name: IEEE
Year: 2021

Volume 9: Issue 1: Data and Cyberphysical Systems
The goal of this issue is to present the state-of-the-art data-driven technologies that have been adopted in macro- and microgrids, along with potential data-driven applications with high practical values. To this end, this issue includes eight articles on data-driven applications. In addition, it contains two articles on other relevant topics, with one focusing on the operation of island power systems with a high penetration of inverter-based resources and the other featuring hydrogen-electric airplanes.
Eine hochschulübergreifende Entwicklung von Onlinestudienorientierungsformaten auf Basis von zielgruppenspezifischen Analysen am Beispiel von ingenieurwissenschaftlichen Studiengängen
Creators: name: Schulz, Marcel
Publisher: name: Universitätsbibliothek Siegen
Year: 2020
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: Online Self Assessments
subject: Studienorientierung
subject: Ingenieurwissenschaften
subject: Maschinenbau
subject: Study Orientation
subject: Engineering
subject: Mechanical Engineering
subject: FOS: Mechanical engineering
subject: Ingenieurwissenschaften
subject: Maschinenbau

description: Im Rahmen des Projekts «Profilgebundene WissensChecks 2.0» wurde an der BTU Cottbus-Senftenberg ein Online Self Assessment für den Maschinenbau entwickelt. Hierzu wurde der Studiengang vorab genau analysiert. Unter Hinzunahme der Zielgruppe wurde schließlich ein innovatives Instrument entwickelt: Über 360Grad-Video-Panoramen können Studieninteressierte das Fach kennenlernen. Das On-line Self Assessment wird als Browserversion sowie als VR-Brillenversion bereitgestellt.
Assessment of Duct Leakage Rates on Stairwell Pressurization System
Creators: name: Taricska, Jerry Richard
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: Engineering
subject: Mechanical engineering
subject: FOS: Mechanical engineering
subject: Design
subject: CONTAM
subject: Detailed Duct System
subject: Duct Leakage Rate
subject: High-Rise building
subject: Multiple-Injection System
subject: Stairwell Pressurization System

description: This study aims to evaluate the effects duct leakage had on a stairwell pressurization system in a high-rise residential building by using a network model, CONTAM. The network model was used to determine if the pressurized system was capable of being balanced and perform as intended during a fire incident. The subject building had two stairwells, each fed by a fan located on the 2nd and 29th floors of a 31-story building. Each fan fed a multi-injection duct system which ran through a mechanical shaft located next to each stairwell. This study evaluated the effects that building leakages and temperatures (stack effect) had on air leakage out of the duct system by comparing fan capacities to stairwell pressurization requirement. CONTAM was used to simulate these effects by running both a duct balance method and steady state method. The results from this study determined that as duct leakage rates increased, fan capacities increased to meet the stairwell pressurization requirements for a high-rise building. Additionally, the results determined that the building leakage and exterior temperatures increased the air flow leaking out of the duct system.
On the zero set of the Kobayashi--Royden pseudometric of the spectral unit ball
Creators: name: Nikolov, Nikolai
name: Thomas, Pascal J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32F45 (Primary); 32A07 (Secondary)

description: Given $A\inΩ_n,$ the $n^2$-dimensional spectral unit ball, we show that $B$ is a "generalized" tangent vector at $A$ to an entire curve in $Ω_n$ if and only if $B$ is in the tangent cone $C_A$ to the isospectral variety at $A.$ In the case of $Ω_3,$ the zero set of this metric is completely described.
description: minor changes; to appear in Ann. Polon. Math
Ein Serious Game mit lernenden- und objektzentrierter Aufgabengestaltung als digitale Lösung beim Übergang zur universitären Ingenieurausbildung
Creators: name: Müller, Thomas
name: Seidel, Anna
name: Weidle, Franziska
name: Dubrau, Marlen
name: Börner, Claudia
Publisher: name: Universitätsbibliothek Siegen
Year: 2020
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: Technische Mechanik
subject: Fachdidaktik
subject: Motivation
subject: Serious Game
subject: GBL
subject: Technische Mechanik
subject: Fachdidaktik
subject: Motivation
subject: Serious game

description: Studierende der Ingenieurwissenschaften sehen sich großen Barrieren zum Studienbeginn konfrontiert. Dabei nimmt das Grundlagenfach der Technischen Mechanik durch die abstrakten und technischen Inhalte eine besondere Rolle ein. Das im Projekt Learn&Play entwickelte Serious Game adressiert inhaltliche und motivationale Lernschwierigkeiten, indem das Lösen technischer Aufgaben mithilfe spielerischer Elemente unterstützt wird. Der in drei Ebenen aufgeteilte Aufgabenraum – Real-, Lösungs- und Ergebnis- bzw. Feedbackebene – fokussiert individuelle Wissenslücken und liefert eine Antwort auf die Frage, wie das Erlernen mathematisch-physikalischen Fachwissens erleichtert sowie motivational unterstützt werden kann, um abstrakte Problemstellungen der technischen Mechanik zu lösen.
Discovery and implications of hidden atomic-scale structure in a metallic meteorite
Creators: name: Kovács, András
name: Lewis, Laura H.
name: Palanisamy, Dhanalaksmi
name: Denneulin, Thibaud
name: Schwedt, Alexander
name: Scott, Edward R. D.
name: Gault, Baptiste
name: Raabe, Dierk
name: Dunin-Borkowski, Rafal E.
name: Charilaou, Michalis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Iron and its alloys have made modern civilisation possible, with metallic meteorites providing one of the human's earliest sources of usable iron as well as providing a window into our solar system's billion-year history. Here highest-resolution tools reveal the existence of a previously hidden FeNi nanophase within the extremely slowly cooled metallic meteorite NWA 6259. This new nanophase exists alongside Ni-poor and Ni-rich nanoprecipitates within a matrix of tetrataenite, the uniaxial, chemically ordered form of FeNi. The ferromagnetic nature of the nanoprecipitates combined with the antiferromagnetic character of the FeNi nanophases give rise to a complex magnetic state that evolves dramatically with temperature. These observations extend and possibly alter our understanding of celestial metallurgy, provide new knowledge concerning the archetypal Fe-Ni phase diagram and supply new information for the development of new types of sustainable, technologically critical high-energy magnets.
description: 10 pages, 5 figures
Fully Decentralized Reinforcement Learning-Based Control of Photovoltaics in Distribution Grids for Joint Provision of Real and Reactive Power
Creators: Rayan El Helou
Dileep Kalathil
and Le Xie
Publisher: name: IEEE
Year: 2021

In this paper, we introduce a new framework to address the problem of voltage regulation in unbalanced distribution grids with deep photovoltaic penetration.
In this paper, we introduce a new framework to address the problem of voltage regulation in unbalanced distribution grids with deep photovoltaic penetration. In this framework, both real and reactive power setpoints are explicitly controlled at each solar panel smart inverter, and the objective is to simultaneously minimize system-wide voltage deviation and maximize solar power output. We formulate the problem as a Markov decision process with continuous action spaces and use proximal policy optimization, a reinforcement learning-based approach, to solve it, without the need for any forecast or explicit knowledge of network topology or line parameters. By representing the system in a quasi-steady state manner, and by carefully formulating the Markov decision process, we reduce the complexity of the problem and allow for fully decentralized (communication-free) policies, all of which make the trained policies much more practical and interpretable. Numerical simulations on a 240-node unbalanced distribution grid, based on a real network in Midwest U.S., are used to validate the proposed framework and reinforcement learning approach.
IMPROVING ENGLISH VOCABULARY FOR STUDENTS THROUGH LISTENING TO ENGLISH NEWS
Creators: name: Teshaboyeva, Nafisa
name: Amirova, Xurshida
Publisher: name: Zenodo
Year: 2023

description: The major aim of the present research is to investigate the effects of listening To English News on improving the vocabulary of English majors at a Universities Worldwide. The researcher called for 60 students to volunteer to Take part in the study, 30 of whom were assigned to the experimental group And the other half assigned to the control group. The two groups had to Respond to the pre-questionnaire and take the pre-test on vocabulary. The Experimental group then entered the experimental process and was asked to Listen to English News every day to learn vocabulary. Besides, they did some Exercises designed by the researcher related to the English News they heard.
Power and Energy Magazine - Volume 19: Issue 3 - May/June 2021: Mircogrid Protection
Creators: Ning Lu
Steve Widergren
Dimitris Lagos
Vasileios Papaspiliotopoulos
George Korres
Nikos Hatziargyriou
Matthew J. Reno
Sukumar Brahma
Ali Bidram
Michael E. Ropp
Scott Manson
Ed McCullough
Michael Higginson
Matt Payne
Keith Moses
Peter Curtiss
Stephen Costello
Ward Bower
Tom Key
Publisher: name: IEEE
Year: 2021

The overall theme of this issue is microgrid protection: rethinking reflexive action at the edge
Over the past two decades smart grid-related initiatives have directed our gaze toward customers and the edge of the system. Intelligent equipment and processes now pervade the electric system. They are dramatically affecting electricity customer investments in smart equipment. Initiatives are underway to reimagine distribution system operations. And this trend is not stopping. While committed to developing issues on a diverse set of themes that cover the power and energy industry landscape, keeping our readers abreast of the latest developments in integrating and coordinating the operation of customer and distribution system resources continues.
Lernkatalysatoren und konvergierende Objekte
Creators: name: Ahrens, Volker
name: Hieronymus, Martin
Publisher: name: Universitätsbibliothek Siegen
Year: 2020
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: Kompetenzorientierte Lehre
subject: Lernkatalysatoren
subject: Konvertierende Objekte
subject: Lehre

description: Objekte können im sozialen Prozess des Lernens eine zentrale Rolle spielen. Dazu müssen sie jedoch bestimmte Eigenschaften aufweisen und gezielt eingesetzt werden. Im Kontext der Theorie sozialer Systeme bieten spezifische Theorien wie die Akteur-Netzwerk-Theorie (ANT), der Symbolische Interaktio-nismus oder die Affordanztheorie dazu Ansatzpunkte. Am Beispiel einer konkreten Lehrveranstaltung wird demonstriert, wie diese in der akademischen Lehre wirksam umgesetzt werden können.
MPEC 2025-G58 : 2025 GM
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 GM

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Tandem Teaching in der ingenieurpädagogischen Ausbildung
Creators: name: Al-Diban, Sabine
Publisher: name: Universitätsbibliothek Siegen
Year: 2020
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: Tandem Teaching
subject: Explorative Fallstudie
subject: Mentale Modelle
subject: Lehrkompetenzen
subject: Lehre
subject: Fallstudie

description: In diesem Beitrag geht es um das Tandem Teaching. Der Begriff beinhaltet in Analogie zu einem Fahrrad, das für Zwei gebaut wurde, die Aussage, dass zwei Personen für das Lehren gleichermaßen verantwortlich sind [Nicholas, Ransohoff, 1965, S. 489]. Generell sind sehr unterschiedliche Tandemkonstellationen möglich, die vergleichend vorgestellt werden. Als Fragestellungen zum Tandem Teaching werdendiskutiert, welches Potential das Tandem Teaching allgemein aufweist und welche Herausforderungen beim Initiieren von Lernprozessen und der Entwicklung von Lehrkompetenzen auch bei angehenden Ingenieurpädagoginnen/ Ingenieurpädagogen und Lehrenden in der Ingenieurbildung bestehen.
The X-ray soft excess in classical T Tauri stars
Creators: name: Guedel, M.
name: Telleschi, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study an anomaly in the X-ray flux (or luminosity) ratio between the OVII 21.6-22.1A triplet and the OVIII Lya line seen in classical T Tauri stars (CTTS). This ratio is unusually high when compared with ratios for main-sequence and non-accreting T Tauri stars (Telleschi et al. 2007). We compare these samples to identify the source of the excess. A sample of recently discovered X-ray stars with a soft component attributed to jet emission is also considered. We discuss data obtained from the XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST) project, complemented by data from the published literature. We also present data from the CTTS RU Lup. All CTTS in the sample show an anomalous OVII/OVIII flux ratio when compared with WTTS or MS stars. The anomaly is due to an excess of cool, OVII emitting material rather than a deficiency of hotter plasma. The excess plasma must therefore have temperatures of
description: 5 pages, 5 figures, accepted for Astronomy & Astrophysics Letters
June -  Role of Power Electronics in Grid Following to Grid Forming
Creators: Chao Wu
Subham Sahoo
Frede Blaabjerg
Zibo Chen
Houshang Salimian Rizi
Alex Q. Huang
PSA	Peiris
Shaahin Filizadeh
Sudhir Routray
Ramon Gallart
Miriam Peñarroya Esteve
Publisher: name: IEEE
Year: 2021

Newsletter
Issue on the role of Power Electronics in Grid Following to Grid Forming featuring "Robust Synchronization for High Penetration of Inverter Based Resources," "Grid Forming Photovoltaic Synchronous Generator Power Plants," "Grid-forming converters assisted with energy storage," "IoT Assisted Power Electronics for Modern Grids," and "Software Development Network applied in the European Power Energy Systems."
N-Complexes and Higher Spin Gauge Fields
Creators: name: Henneaux, Marc
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: $N$-complexes have been argued recently to be algebraic structures relevant to the description of higher spin gauge fields. $N$-complexes involve a linear operator $d$ that fulfills $d^N = 0$ and that defines a generalized cohomology. Some elementary properties of $N$-complexes and the evidence for their relevance to the description of higher spin gauge fields are briefly reviewed.
description: Presented at the International Workshop "Differential Geometry, Noncommutative Geometry, Homology and Fundamental Interactions" in honour of Michel Dubois-Violette, Orsay, April 8-10, 2008
Prosumage in der Ingenieurpädagogik
Creators: name: Meyer-Ross, K. Kathy
Publisher: name: Universitätsbibliothek Siegen
Year: 2020
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: Constructive Alignment
subject: Lernzieltaxonomie
subject: Prosumage
subject: Multigrid
subject: Lernzielklassifikation

description: Dieser Beitrag stellt ein neu entwickeltes didaktische Modell vor, den „Prosumage Ansatz“. In ihm werden die Bloomschen Taxonomiestufen mit Biggs‘ Constructive Alignment zusammengeführt und Studierende übernehmen die Rolle von Prosumenten. Lehrende sollen hierdurch ein umfassendes und vertieftes Verständnis des Geschehens erhalten und bei den Studierenden wird erwartet, dass sie mit der Entwicklung ihres eigenen Produkts die Fähigkeit ausbauen, sich auch in unterschiedliche Sichtweisen anderer Beteiligter zu versetzen und kritisch zu reflektieren, ob und wie das zu Lernende abgespeichert, d. h. „gelernt“ werden kann. Der Prosumage-Ansatz soll konkret innovative und reflexive Kompetenzen fördern.
The spatial distribution of galaxies of different spectral types in the massive intermediate-redshift cluster MACSJ0717.5+3745
Creators: name: Ma, Cheng-Jiun
name: Ebeling, Harald
name: Donovan, David
name: Barrett, Elizabeth
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a wide-field spectroscopic analysis of the galaxy population of the massive cluster MACSJ0717.5+3745 and the surrounding filamentary structure (z=0.55), as part of our systematic study of the 12 most distant clusters in the MACS sample. Of 1368 galaxies spectroscopically observed in this field, 563 are identified as cluster members; of those, 203 are classified as emission-line galaxies, 260 as absorption-line galaxies, and 17 as E+A galaxies (defined by $\frac{H_δ+H_γ}{2}>6$Åand no detection of [OII] and $H_β$ in emission). The variation of the fraction of emission- and absorption-line galaxies as a function of local projected galaxy density confirms the well-known morphology-density relation, and becomes flat at projected galaxy densities less than $\sim 20Mpc^{-2}. Interestingly, 16 out of 17 E+A galaxies lie (in projection) within the ram-pressure stripping radius around the cluster core, which we take to be direct evidence of ram-pressure stripping being the primary mechanism that terminates star-formation in the E+A population of galaxy clusters. This conclusion is supported by the rarity of E+A galaxies in the filament which rules out galaxy mergers as the dominant driver of evolution for E+A galaxies in clusters. In addition, we find the 42 e(a) and 27 e(b) member galaxies, i.e., the dusty-starburst and starburst galaxies respectively, to be spread out across almost the entire study area. Their spatial distribution, which shows a strong preference for the filament region, suggests that starbursts are triggered in relatively low-density environments as galaxies are accreted from the field population.
description: 16 pages, 15 figures, accepted by ApJ
Is the Concentration of Dark Matter Halos at Virialization Universal ?
Creators: name: Ricotti, Massimo
name: Pontzen, Andrew
name: Viel, Matteo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Several recent studies suggest a correlation between dark matter halo mass and the shape of the density profile. We re-analyze simulations from Ricotti (2003) in which such a correlation was proposed. We use a standard analysis of the halo density profiles and compare the old simulations to new ones performed with Gadget2, including higher resolution runs. We confirm Ricotti's result that, at virialization, the central log slopes alpha, at 5%-10% of the virial radius are correlated with the halo mass and that the halo concentration is a universal constant. Our results do not contradict the majority of published papers: when using a split power law to fit the density profiles, due to the alpha-concentration degeneracy, the fits are consistent with halos having a universal shape with alpha=1 or 1.5 and concentrations that depend on the mass, in agreement with results published elsewhere. Recently, several groups have found no evidence for convergence of the inner halo profile to a constant power law. The choice of a split power law parameterization used in this letter is motivated by the need to compare our results to previous ones and is formally valid because we are not able to resolve regions where the slope of the fitting function reaches its asymptotic constant value. Using a non-parameterized technique, we also show that the density profiles of dwarf galaxies at z ~ 10 have a log slope shallower than 0.5 within 5% of the virial radius.
description: Accepted for Publication in the Astrophysical Journal Letter
General structure of the solutions of the Hamiltonian constraints of gravity
Creators: name: Martin, J.
name: Rañada, Antonio F.
name: Tiemblo, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A general framework for the solutions of the constraints of pure gravity is constructed. It provides with well defined mathematical criteria to classify their solutions in four classes. Complete families of solutions are obtained in some cases. A starting point for the systematic study of the solutions of Einstein gravity is suggested.
description: 17 pages, LaTeX, submitted to International J. of Geom. Meth. in Modern Physics. Added comments in the last section
Cryptophagus histricus Casey 1900
Creators: name: Majka, Christopher
name: Langor, David
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cryptophagidae
Cryptophagus
Cryptophagus histricus

description: Cryptophagus histricus Casey, 1900 Cryptophagus histricus was reported by Woodroffe and Coombs (1961) from a bumblebees’ nest in Tallik Nagvak Fjord in northern Labrador (Fig. 6). This is the only record of this Nearctic species in the region. It is otherwise recorded from scattered states in Québec Newfoundland Gaspe Prince Edward Island Cape Breton New Island Brunswick Njaine Cryptophagus difficilis Nova Cryptophagus mainensis Scotia Cryptophagus scanicus Cryptophagus tuberculosus western and eastern portions of the continent. Other records are from fungi, on cord wood, and in malt (Woodroffe and Coombs 1961).
description: Published as part of Majka, Christopher & Langor, David, 2010, Contributions towards an understanding of the Cryptophaginae (Coleoptera, Cryptophagidae) of Atlantic Canada, pp. 13-35 in ZooKeys 35 (35) on pages 22-23, DOI: 10.3897/zookeys.35.314, http://zenodo.org/record/576615
description: {"references": ["Casey TL (1900) A review of the American Corylophidae, Cryptophagidae, Tritomidae and Dermestidae, with other studies. Journal of the New York Entomological Society 8: 51 - 172.", "Woodroffe GE, Coombs CW (1961) A revision of the North American Cryptophagus Herbst (Coleoptera: Cryptophagidae). Miscellaneous Publications of the Entomological Society of America 2: 179 - 211."]}
Reticulipeurus (Forcipurellus) diki Gustafsson & Zou 2023, new species
Creators: name: Gustafsson, Daniel R.
name: Zou, Fasheng
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Psocodea
Philopteridae
Reticulipeurus
Reticulipeurus diki

description: Reticulipeurus (Forcipurellus) diki new species
(Figs 24–31, 41)
Type host. Arborophila rubrirostris (Salvadori, 1879) —red-billed partridge.
Type locality. Sumatra, Indonesia.
Diagnosis. Reticulipeurus (Forcipurellus) diki can be separated from all other species in the subgenus by the following combination of characters: preantennal head more narrowly pointed (Fig. 26); male flagellomere I not expanded distally (Fig. 26); ventral sclerite of male genitalia with broadly rounded anterior margin (Fig. 29); male temples rounded (Fig. 26); male stylus spatulate (Fig. 41).
Description. Preantennal head somewhat pointed (Fig. 26). Male scape longer than female (Fig. 27), slightly wider but not otherwise modified; male pedicel slightly curved; male flagellomere I without distal extension. Head chaetotaxy as in Fig. 26. Lateral margins of temples rounded in male. Thoracic and abdominal segments and chaetotaxy as in Figs 24–25. Distal abdomen of male as in Fig. 41; sternal plate VII apparently separate from subgenital plate; stylus short, spatulate; distal margin of segment XI clearly concave, lateral corners not extended distally. Male genitalia as in Figs 28–30. Distal rugosity of mesosome somewhat coarse, extensive. Ventral sclerite with broadly convex anterior margin and two visible gpmes on each side. Gonopore does not approach distal margin of mesosome. Parameres slender, convergent, with slightly bulging heads; pst 1 in distal third of paramere. Female sternal plate VII without median bulge on distal margin (Fig. 31). Median bulge of vulval margin moderate, with 4–6 vss on each side; lateral lobes with 19–21 long, slender vms on each side. Lateral margin of claspers with 6–9 lateral setae on each side. Measurements as in Table 1.
Type material examined. Holotype 1♁, Sumatra, [Indonesia], Dec. 1900, no collector, 22, NHMUK010682701 (NHML). Paratypes 1♁, 3♀, same data as holotype, NHMUK010682701–2 (NHML). 1 ♁, 1♀, Sumatra, no date, coll. R. Meinertzhagen, 8344, NHMUK010682703 (NHML).
Etymology. The species epithet honours our friend and colleague Bilal Dik (Veterinary Faculty, Selçuk University, Konya, Turkey), who has systematically and meticulously examined the chewing louse fauna of Turkey for many decades, making it one of the best known of the Mediterranean and Middle East regions.
description: Published as part of Gustafsson, Daniel R. & Zou, Fasheng, 2023, Species of Reticulipeurus Kéler, 1958 (Phthiraptera, Ischnocera, Oxylipeurus- complex) parasitic on species of Arborophila, with description of a new subgenus and three new species, pp. 496-520 in Zootaxa 5284 (3) on page 504, DOI: 10.11646/zootaxa.5284.3.3, http://zenodo.org/record/7929559
Digitale Kompetenzen für zukünftige Wirtschaftsingenieurinnen und -ingenieure – ein Stakeholderranking mithilfe des analytischen Hierarchieprozesses (ahp)
Creators: name: Lindner, Fabian
name: Winkler, Daniel
name: Mühlan, Kevin
name: Keil, Sophia
Publisher: name: Universitätsbibliothek Siegen
Year: 2020
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: Digitale Transformation
subject: Industrie 4.0
subject: Kompetenzen
subject: Wirtschaftsingenieurwesen
subject: Hochschulpädagogik
subject: Analytischer Hierarchieprozess (AHP)
subject: Analytic Hierarchy Process
subject: Digitale Revolution
subject: Industrie 4.0
subject: Hochschuldidaktik

description: Vor dem Hintergrund der digitalen Transformation in Wirtschaft und Gesellschaft sowie der Industrie 4.0 schlägt der vorliegende Beitrag die Anwendung des Analytischen Hierarchieprozesses (AHP) zur Wichtung notwendiger Kompetenzen zukünftiger Wirtschaftsingenieurinnen und -ingenieure vor. Dazu wird eine entsprechende Hierarchie von Kriterien unter den Kategorien „Wissen“, „Fähigkeiten“ sowie „Einstellungen und Werte“ gebildet. Zur Durchführung des AHP wird außerdem das Konzept eines Workshops unter Beteiligung entsprechender Stakeholder erläutert.
Deformed quantum mechanics and q-Hermitian operators
Creators: name: Lavagno, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Starting on the basis of the non-commutative q-differential calculus, we introduce a generalized q-deformed Schrödinger equation. It can be viewed as the quantum stochastic counterpart of a generalized classical kinetic equation, which reproduces at the equilibrium the well-known q-deformed exponential stationary distribution. In this framework, q-deformed adjoint of an operator and q-hermitian operator properties occur in a natural way in order to satisfy the basic quantum mechanics assumptions.
description: 10 pages