cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Analysing Diffusion-based Generative Approaches versus Discriminative Approaches for Speech Restoration
Creators: name: Lemercier, Jean-Marie
name: Richter, Julius
name: Welker, Simon
name: Gerkmann, Timo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Diffusion-based generative models have had a high impact on the computer vision and speech processing communities these past years. Besides data generation tasks, they have also been employed for data restoration tasks like speech enhancement and dereverberation. While discriminative models have traditionally been argued to be more powerful e.g. for speech enhancement, generative diffusion approaches have recently been shown to narrow this performance gap considerably. In this paper, we systematically compare the performance of generative diffusion models and discriminative approaches on different speech restoration tasks. For this, we extend our prior contributions on diffusion-based speech enhancement in the complex time-frequency domain to the task of bandwith extension. We then compare it to a discriminatively trained neural network with the same network architecture on three restoration tasks, namely speech denoising, dereverberation and bandwidth extension. We observe that the generative approach performs globally better than its discriminative counterpart on all tasks, with the strongest benefit for non-additive distortion models, like in dereverberation and bandwidth extension. Code and audio examples can be found online at https://uhh.de/inf-sp-sgmsemultitask
description: \c{opyright} 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
Accurate Energy Predictions for Tracking HCPV Installations
Creators: name: Dittmer, J.
name: McDonald, M.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Systems
PV Power Plants

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 4193-4198
description: High efficiency high concentration photovoltaic (HCPV) solar plants of megawatt scale are now
installed and operational. Wide utility adoption of HCPV requires reliable prediction of energy production for site
planning and operation. HCPV module nameplate power is rated for specific test conditions; however, instantaneous
HCPV power varies due to site specific irradiance and is impacted, in part, by operating temperature, soiling,
protective stowing, solar spectrum, shading, and electrical connectivity. We will show a time sequence model
accurately accounting for these effects that predicts annual energy production, and can be used to guide cost-effective
site selection, plant layout and operation, and system-level design decisions.
A 3D Wire Saw Model of the Slurry Flow to Predict Forces Exerted Upon Silicon Ingots During Cutting
Creators: name: Wagner, T.
name: Möller, H.J.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Feedstock, Crystallisation and Wafering

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1315-1320
description: We developed a three-dimensional computer model representing the geometry of a single sawing channel in an ingot sliced with a slurry multi-wire saw. The model is driven by macroscopic machine parameters and gives estimates of the microscopic behaviour of the slurry. It takes into account the laminar flow of the slurry, interaction among the abrasive particles and the interaction of these particles with both wire and ingot surface. With this model the height of the slurry film in the cutting zone can be estimated. The abrasion of silicon can be modeled as well. By calculating the displacement of the wire due to the contact forces on the wire a slurry film height larger than the maximum diameter of the abrasive particles could be estimated.
Short-Channel Field Effect Transistors with 9-Atom and 13-Atom wide Graphene Nanoribbons
Creators: name: Llinas, Juan Pablo
name: Fairbrother, Andrew
name: Barin, Gabriela Borin
name: Shi, Wu
name: Lee, Kyunghoon
name: Wu, Shuang
name: Choi, Byung Yong
name: Braganza, Rohit
name: Lear, Jordan
name: Kau, Nicholas
name: Choi, Wonwoo
name: Chen, Chen
name: Pedramrazi, Zahra
name: Dumslaff, Tim
name: Narita, Akimitsu
name: Feng, Xinliang
name: Müllen, Klaus
name: Fischer, Felix
name: Zettl, Alex
name: Ruffieux, Pascal
name: Yablonovitch, Eli
name: Crommie, Michael
name: Fasel, Roman
name: Bokor, Jeffrey
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Bottom-up synthesized GNRs and GNR heterostructures have promising electronic properties for high performance field effect transistors (FETs) and ultra-low power devices such as tunnelling FETs. However, the short length and wide band gap of these GNRs have prevented the fabrication of devices with the desired performance and switching behaviour. Here, by fabricating short channel (Lch ~20 nm) devices with a thin, high-k gate dielectric and a 9-atom wide (0.95 nm) armchair GNR as the channel material, we demonstrate FETs with high on-current (Ion >1 uA at Vd = -1 V) and high Ion/Ioff ~10^5 at room temperature. We find that the performance of these devices is limited by tunnelling through the Schottky barrier (SB) at the contacts and we observe an increase in the transparency of the barrier by increasing the gate field near the contacts. Our results thus demonstrate successful fabrication of high performance short-channel FETs with bottom-up synthesized armchair GNRs.
description: v3: added local back gate data
Benchmarking of Different Approaches to Forecast Solar Irradiance
Creators: name: Lorenz, E.
name: Remund, J.
name: Müller, S.C.
name: Traunmüller, W.
name: Steinmaurer, G.
name: Pozo, D.
name: Ruiz-Arias, J.A.
name: Fanego, V.L.
name: Ramirez, L.
name: Romeo, M.G.
name: Kurz, C.
name: Pomares, L.M.
name: Guerrero, C.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Systems
PV Power Plants

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 4199-4208
description: Power generation from photovoltaic systems is highly variable due to its dependence on
meteorological conditions. An efficient use of this fluctuating energy source requires reliable forecast information for
management and operation strategies. Due to the strong increase of solar power generation the prediction of solar
yields becomes more and more important. As a consequence, in the last years various research organisations and
companies have developed different methods to forecast irradiance as a basis for respective power forecasts. For the
end-users of these forecasts it is important that standardized methodology is used when presenting results on the
accuracy of a prediction model in order to get a clear idea on the advantages of a specific approach.
In this paper we introduce a benchmarking procedure to asses the accuracy of irradiance forecasts and compare
different approaches of forecasting. The evaluation shows a strong dependence of the forecast accuracy on the
climatic conditions. For Central European stations the relative rmse ranges from 40 % to 60 %, for Spanish stations
relative rmse values are in the range of 20 % to 35 %.
A Study of Physical-Chemical Nature of the Kerfs Generated in Band Sawing / Grinding of mc-Si
Creators: name: Zhou, L.
name: Yin, C.-Q.
name: Zhou, P.-B.
name: Xiong, Y.-H.
name: Wan, Y.
name: Wang, Z.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Feedstock, Crystallisation and Wafering

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1321-1324
description: The present study was carried out in our effort to realize recovery of sawing and grinding kerfs of silicon. XRD, TGA, SEM-EDAX and ICP-OES techniques have been used for analyses of the kerfs. Most of the kerfs are smaller than 10 microns, and form spherical compacts of 50 to 500 microns. Over 50%vol of amorphous phases were identified in the as-received kerfs, which presumably consist of amorphous silica and carbon. Significant weight loss in heating was found to proceed until 900°C. Based on the understanding, a set of criterions for effective recovery of the kerfs are proposed. A novel process named MPF has been developed for recovery of the kerfs. The MPF processed kerfs were analyzed with the same technique, and the results showed that the processed kerfs satisfy well the criterions, and the major impurities like Fe and Al were lowered down to ppm level.
The Effect of an Organic Selectively-Reflecting Mirror on the Performance of a Luminescent Solar Concentrator
Creators: name: Debije, M.G.
name: Van, M.-P.
name: Verbunt, P.P.C.
name: Broer, D.J.
name: Bastiaansen, C.W.M.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Advanced Photovoltaics
New Materials, Cells and Modules

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 373-376
description: To reduce the surface losses in the luminescent solar concentrator (LSC) we have applied an organic
wavelength-selective mirror, a chiral nematic (cholesteric) liquid crystal, onto a fluorescent waveguide with a small air
gap in between. We compare the light outputs of the waveguide with absorbing, scattering, and mirrored bottoms. The
highest light output is achieved using a scattering background and a cholesteric mirror with a reflection band
significantly red-shifted with respect to the emission spectrum of the fluorescent dye. The use of an air gap results in
refraction and light bending away from the normal and, consequently, a red shift of the cholesteric mirrors is required
which also negatively affects its performance. A 15% increase in edge power output is demonstrated at low dye
concentrations, suggesting light that is emitted to the surface of the waveguide is re-directed by the mirrors to the edge
with an efficiency of about 35%. At high fluorescent dye concentrations, the chiral-nematic mirrors have reduced impact
on dye emission.
Pachycephala everetti Hartert
Creators: name: Pachycephalidae
name: Aegithalidae
name: Remizidae
name: Paridae
name: Sittidae
name: Neosittidae
name: Certhiidae
name: Rhabdornithidae
name: Climacteridae
name: Dicaeidae
name: Pardalotidae
name: Nectariniidae, And
name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Pachycephalidae
Pachycephala

description: Pachycephala everetti Hartert Pachycephala everetti Hartert, 1896b: 170 (Djampea). Now Pachycephala fulvotincta everetti Hartert, 1896. See Dickinson 2003: 476, and Boles, 2007: 421. LECTOTYPE: AMNH 657442, adult male, collected on Tanahjampea (5 Djampea) Island, 07.05S, 120.42E (White and Bruce, 1986: 491), Lesser Sunda Islands, Indonesia, in December 1895, by Alfred Everett. From the Rothschild Collection. COMMENTS: No type was designated in the original description nor was the number of specimens in the type series indicated. Hartert (1920a: 449) listed as type a male collected on Djampea by Heinrich Kühn in December 1895; however, this did not serve to designate a lectotype as there are seven male specimens among the 10 collected by Kühn in December 1895 on Djampea. AMNH 657442, bearing a Rothschild type label, is the specimen Hartert intended as the type. Everett’s field label is also marked ‘‘Type.’’ In order to remove the ambiguity and confirm Hartert’s intended type, I hereby designate AMNH 657442 the lectotype of Pachycephala everetti Hartert, 1896. Paralectotypes are: AMNH 657443– 657451. Dickinson (2003: 476) separated the ‘‘ fulvotincta group’’ of subspecies as a separate species; Boles (2007: 421) retained the broad species P. pectoralis.
description: Published as part of Pachycephalidae, Aegithalidae, Remizidae, Paridae, Sittidae, Neosittidae, Certhiidae, Rhabdornithidae, Climacteridae, Dicaeidae, Pardalotidae, Nectariniidae, And & Lecroy, Mary, 2010, Type Specimens Of Birds In The American Museum Of Natural History Part 8. Passeriformes:, pp. 1-178 in Bulletin of the American Museum of Natural History 2010 (333) on pages 20-21
description: {"references": ["Hartert, E. 1896 b. On ornithological collections made by Mr. Alfred Everett in Celebes and on the islands south of it. II. The birds of Saleyer, Djampea, and Kalao. Novitates Zoologicae 3: 165 - 183.", "Dickinson, E. C. (editor). 2003. The Howard & Moore complete checklist of the birds of the world. 3 rd ed. London: Christopher Helm, 1039 pp.", "Boles, W. E. 2007. Family Pachycephalidae. In: J. del Hoyo, A. Elliott, and D. A. Christie (editors), Handbook of birds of the world, volume 12: 374 - 437. Barcelona: Lynx Edicions, 816 pp., 56 pls, 436 photographs.", "White, C. M. N., and M. D. Bruce. 1986. The birds of Wallacea. BOU Check-list no. 7. London: British Ornithologists' Union, 524 pp.", "Hartert, E. 1920 a. Types of birds in the Tring Museum. B. Types in the general collection (contd.). Novitates Zoologicae 27: 425 - 505."]}
The Non-Fluorescent Flat Plate Solar Concentrator
Creators: name: Slooff, L.H.
name: Bende, E.E.
name: Budel, T.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Advanced Photovoltaics
New Materials, Cells and Modules

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 336-339
description: Apart from costs, one of the keys to the market introduction of the fluorescent solar concentrator (FSC)
is its outdoor lifetime, which up to now, is limited a few years by the lifetime of the fluorescent dye or quantum dot.
This study shows that omitting the dye or quantum dot still can give power conversion efficiencies (PCE), which are
comparable to, or even larger than that of the FSC. This can be done by using a special type of bottom mirror. It is
shown that a PCE of 4.5% can be achieved
Universal localisations via silting
Creators: name: Marks, Frederik
name: Stovicek, Jan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16E30, 16S85, 18E40

description: We show that silting modules are closely related with localisations of rings. More precisely, every partial silting module gives rise to a localisation at a set of maps between countably generated projective modules and, conversely, every universal localisation, in the sense of Cohn and Schofield, arises in this way. To establish these results, we further explore the finite-type classification of tilting classes and we use the morphism category to translate silting modules into tilting objects. In particular, we prove that silting modules are of finite type.
description: 20 pages; version 2: Subsection 6.4 added with an example of a silting ring epimorphism which is not a universal localisation, small changes in presentation (e.g. Proposition 3.3 now summarizes properties of set-generated cotorsion pairs), references added and updated
Virtual Solar Power Plant in the Netherlands
Creators: name: Cace, J.
name: Van Sark, W.G.J.H.M.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Systems
PV Power Plants

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 4212-4215
description: This paper describes the activities regarding a study of a virtual solar power plant in order to establish
its technical, economical and social feasibility. A virtual solar power plant is a virtual network of all solar
installations connected to the grid in a particular region or country. All relevant operational data of the participating
PV-installations is being dynamically collected and made available online. The virtual solar power plant will improve
the quality of solar systems, support the introduction of market value for solar electricity and stimulate development
and application of new equipment and services related to monitoring and maintenance of solar systems and trading of
solar electricity.
The Study on the Effect to the Large Photovoltaic Systems in Low Voltage Distribution Power System
Creators: name: Hwang, H.M.
name: So, J.H.
name: Yu, K.J.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Systems
PV Power Plants

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 4145-4149
description: This paper presents the expected effects when the large photovoltaic (PV) system is interconnected to
the utilities, especially the low voltage distribution power system. According to the interesting for new & renewable
energy because of recent situation about petroleum cost and government’s policy for the energy security, we
simulated the MW level photovoltaic system in the distribution power systems. And we check the grid
interconnection standard for distributed generation (DG) which used in Korea.
DEVELOPMENT OF TENSOR BASED BUILDING BLOCK MODELS WITH DENSITY FUNCTIONAL THEORY CALCULATIONS AND CLUSTERING ALGORITHMS FOR A QUANTITATIVE DESCRIPTION OF MOLECULAR ORIENTATION USING NEAR EDGE X-RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY OF SMALL MOLECULE AND POLYMERIC THIN FILMS
Creators: name: MURCIA, VICTOR MANUEL
Publisher: name: Washington State University
Year: 2022
Subjects: Clustering
DFT
NEXAFS
RSoXS
Algorithms
Spectroscopy
Computational Physics

description: Polarized Resonant Soft X-ray Scattering (pRSoXS) is uniquely sensitive to local molecular orientation regardless of crystallinity, making it a powerful tool in characterizing various types of nanostructures. Unfortunately, it is difficult to interpret the anisotropic scattering patterns due to a lack of appropriate optical models. Empirically derived building block models (BBMs) do not have information about the transition dipole moments (TDMs) associated with resonant transitions in NEXAFS and are consequently unable to generate nonuniaxial optical tensors. Density functional theory (DFT) can provide the TDMs but it generates several thousands of transitions for small molecules that prevent their usage into a reasonable optical model. In addition to this, the intensities, energies, and TDM orientations that are outputted from the DFT require refinement in order to get better correspondence with experiment. In this work, an optical model that combines angle-resolved NEXAFS (AR-NEXAFS) measurements and a clustering algorithm applied to DFT to algorithmically create a quantitatively accurate optical tensor for molecules targeted in organic electronic applications is made. First, it is shown how transition potential DFT (TP-DFT) can be used to produce qualitatively accurate simulations of NEXAFS for poly-3-hexylthiophene (P3HT) and Copper (II) Phthalocyanine (CuPc). Then, a clustering algorithm is developed that is capable of quantitatively reproducing the AR-NEXAFS of CuPc using a set of transition clusters that have all the DFT information encoded within them. Lastly, these clusters are paired with results from Mulliken population analysis to assign the chemical character of NEXAFS features. The optical tensor generated from the clustering and refinement process can then be used to aid in the modeling and fitting of resonant X-ray techniques used in structural characterization like pRSoXS and Resonant X-Ray Reflectivity (XRR).
Are the Formation and Abundances of Metal-Poor Stars the Result of Dust Dynamics?
Creators: name: Hopkins, Philip F.
name: Conroy, Charlie
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Large dust grains can fluctuate dramatically in their local density, relative to gas, in neutral, turbulent disks. Small, high-redshift galaxies (before reionization) represent ideal environments for this process. We show via simple arguments and simulations that order-of-magnitude fluctuations are expected in local abundances of large grains under these conditions. This can have important consequences for star formation and stellar abundances in extremely metal-poor stars. Low-mass stars could form in dust-enhanced regions almost immediately after some dust forms, even if the galaxy-average metallicity is too low for fragmentation to occur. The abundances of these 'promoted' stars may contain interesting signatures, as the CNO abundances (concentrated in large carbonaceous grains and ices) and Mg and Si (in large silicate grains) can be enhanced or fluctuate independently. Remarkably, otherwise puzzling abundance patterns of some metal-poor stars can be well-fit by standard core-collapse SNe yields, if we allow for fluctuating dust-to-gas ratios. We also show that the observed log-normal-like distribution of enhancements in these species agrees with our simulations. Moreover, we confirm Mg and Si are correlated in these stars, with abundance ratios similar to those in local silicate grains. Meanwhile [Mg/Ca], predicted to be nearly invariant from pure SNe yields, shows large enhancements as expected in the dust-promoted model, preferentially in the [C/Fe]-enhanced metal-poor stars. This suggests that (1) dust exists in second-generation star formation, (2) dust-to-gas ratio fluctuations occur and can be important for star formation, and (3) light element abundances of these stars may be affected by the chemistry of dust where they formed, rather than directly tracing nucleosynthesis.
description: 13 pages, 6 figures, accepted to ApJ (replaced with published version)
Water Submerged Photovoltaic Plants
Creators: name: Rosa-Clot, M.
name: Nachtmann, S.
name: Scandura, P.F.
name: Tina, G.M.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Systems
PV Power Plants

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 4162-4165
description: In this paper, the electrical and thermal performance of a single-crystalline submerged photovoltaic solar
panel (SP2) is investigated. In particular, due to the presence of water, several phenomena occur such as the modification
of solar radiation spectrum and the reduction of the module operating temperature. These phenomena have different
impacts on the global energy performance of the PV module which depends on the environmental conditions, on the PV
technology and on the water depth. Energy performances of an SP2 module are measured with an increase in power
ranging from 10 to 15%.
NEW STRATEGIES FOR THE DESIGN OF REACTIVE SULFUR/NITROGEN SPECIES RELEASING SYSTEMS
Creators: name: Kelly, Shane Stephen
Publisher: name: Washington State University
Year: 2022
Subjects: Allicin
Donor
Hydrogen Sulfide
Nitroxyl
Sulfenic Acid

description: Reactive sulfur species are a group of sulfur-based small molecules and functional groups which mediate critical biological functions like signal transduction and REDOX equilibrium maintenance. Of this group, one sits at the critical junction between oxidative damage and REDOX equilibrium. For protein cysteine, the sulfenic acid can be a bridge to oxidative protection, or it can be the first step towards irreparable oxidative damage. Instability of the sulfenic acid hinders its study and necessitates in situ generation. Current methodology for production is not compatible with the biological systems for which its study is needed. Herrin, efforts to produce a biologically compatible donor strategy and simultaneous discovery of a novel reaction mechanism are explored. This mechanism is utilized in production of the antioxidant Allicin.Hydrogen sulfide (H2S) and nitric oxide (NO) are two well-known members of the gasotransmitter family and as such, they play an important role in cell signaling and are known to affect each other via crosstalk. However, the 1 e- reduced form of NO, nitroxyl (HNO), has been shown to possess distinctly advantageous pharmacology compared to NO. H2S and HNO both require donor molecules for in situ generation so a dual donor has been developed, which will produce both from a single retro-Diels-Alder trigger.
Balanced Fair Resource Sharing in Computer Clusters
Creators: name: Bonald, Thomas
name: Comte, Céline
Publisher: name: arXiv
Year: 2016
Subjects: subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: We represent a computer cluster as a multi-server queue with some arbitrary bipartite graph of compatibilities between jobs and servers. Each server processes its jobs sequentially in FCFS order. The service rate of a job at any given time is the sum of the service rates of all servers processing this job. We show that the corresponding queue is quasi-reversible and use this property to design a scheduling algorithm achieving balanced fair sharing of the service capacity.
Recycling of Solar Cell Silicon Scrap by Filtration
Creators: name: Ciftja, A.
name: Engh, T.A.
name: Tangstad, M.
name: Kvithyld, A.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Feedstock, Crystallisation and Wafering

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1274-1277
description: In this study, recycling of top-cut silicon scrap is investigated. Top-cuts in the multicrystalline silicon ingots have a high content of solid inclusions which are SiC and Si3N4 particles. For this reason they are lost as scrap. However, on removing the solid inclusions by a simple filtration process with ceramic foam filters we can recycle silicon as PV feedstock. 10, 20 and 30 ppi (pores per linear inch) SiC filters are used in our experiments. Top-cut silicon scrap before and after filtration is analyzed by light microscopy, and particle size distribution versus number % is reported. Filtration efficiency is determined by measuring surface area of inclusions before and after filtration. With a 30 ppi SiC filter, removal of inclusions is 99%.
Linear degenerations of flag varieties
Creators: name: Irelli, Giovanni Cerulli
name: Fang, Xin
name: Feigin, Evgeny
name: Fourier, Ghislain
name: Reineke, Markus
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Linear degenerate flag varieties are degenerations of flag varieties as quiver Grassmannians. For type A flag varieties, we obtain characterizations of flatness, irreducibility and normality of these degenerations via rank tuples. Some of them are shown to be isomorphic to Schubert varieties and can be realized as highest weight orbits of partially degenerate Lie algebras, generalizing the corresponding results on degenerate flag varieties. To study normality, cell decompositions of quiver Grassmannians are constructed in a wider context of equioriented quivers of type A.
description: 38 pages, minor corrections
Precise determination of universal finite volume observables in the Gross-Neveu model
Creators: name: Korzec, Tomasz
Publisher: name: Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I
Year: 2007
Subjects: subject: Gross-Neveu
subject: Monte-Carlo
subject: Quantenfeldtheorie
subject: Gitter
subject: quantum field theory
subject: lattice
subject: 530 Physik
subject: 29 Physik, Astronomie

description: Bei dem Gross-Neveu Modell handelt es sich um eine in zwei Raumzeit-Dimensionen formulierte Quantenfeldtheorie, die einige Gemeinsamkeiten mit der Quantenchromodynamik aufweist. In der vorliegenden Arbeit wird zunächst ein Überblick über das Kontinuumsmodell sowie über diskretisierte Versionen gegeben. Ein Renormierungsschema wird eingeführt und getestet. Berechnungen im Grenzwert unendlich vieler Fermionfamilien und in Störungstheorie werden durchgeführt. In ausgiebigen Monte-Carlo Simulationen der Modelle mit einer und vier Fermionfamilien wird eine Reihe universeller Größen mit hoher Genauigkeit ermittelt. Simuliert wird eine Gitterversion des Modells mit Wilson-Fermionen. Für das Modell mit nur einer Fermionfamilie, welches zum masselosen Thirring-Modell äquivalent ist, werden die kontinuumsextrapolierten Ergebnisse mit einer exakten Lösung dieses Modells konfrontiert.
description: The Gross-Neveu model is a quantum field theory in two space time dimensions that shares many features with quantum chromo dynamics. In this thesis the continuum model and its discretized versions are reviewed and a finite volume renormalization scheme is introduced and tested. Calculations in the limit of infinitely many fermion flavors as well as perturbative computations are carried out. In extensive Monte-Carlo simulations of the one flavor and the four flavor lattice models with Wilson fermions a set of universal finite volume observables is calculated to a high precision. In the one flavor model which is equivalent to the massless Thirring model the continuum extrapolated Monte-Carlo results are confronted with an exact solution of the model.
Cell Concept for Thin Film a-Si:H Solar Cells Including Photon Upconversion
Creators: name: De Wild, J.
name: Meijerink, A.
name: Rath, J.K.
name: Van Sark, W.G.J.H.M.
name: Schropp, R.E.I.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Advanced Photovoltaics
New Materials, Cells and Modules

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 350-353
description: A near-infrared to visible upconversion phosphor (-NaYF4:Yb3+(18%), Er3+(2%)) has been applied at the
back of a thin film hydrogenated amorphous silicon (a-Si:H) solar cell in combination with a white back reflector to
investigate its response to subbandgap infrared irradiation. Current-voltage measurements and spectral response
measurements were performed on experimental solar cells. Spectral response measurements showed a current increase
of 6% for a silver back reflector and 10% for a diffuse white back reflector with respect to a cell with just a single-layer
ZnO:Al back contact. An enhancement of 6.2 μA was measured under illumination with a 980 nm diode laser, at 28
mW. A part of the current was due to subbandgap absorption. Further, a close match between the non-linear behavior of
the upconversion material and the EQE was found by varying the intensity of the laser light.
Sobolev-Lorentz spaces in the Euclidean setting and counterexamples
Creators: name: Costea, Serban
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 31C45, 46E35

description: This paper studies the inclusions between different Sobolev-Lorentz spaces $W^{1,(p,q)}(Ω)$ defined on open sets $Ω\subset {\mathbf{R}^n},$ where $n \ge 1$ is an integer, $1
description: v1, 32 pages; v2, 32 pages: introduction on pages 1-2 clarified, discussion before Theorems 3.4, 4.11, 4.12 and 5.6 expanded, formulas on pages 16 and 24 corrected, formulas on page 30 shortened, typos removed; v3, 32 pages: typos removed
Pachycephala melanura subsp. arthuri Hartert
Creators: name: Pachycephalidae
name: Aegithalidae
name: Remizidae
name: Paridae
name: Sittidae
name: Neosittidae
name: Certhiidae
name: Rhabdornithidae
name: Climacteridae
name: Dicaeidae
name: Pardalotidae
name: Nectariniidae, And
name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Pachycephalidae
Pachycephala

description: Pachycephala melanura arthuri Hartert Pachycephala melanura arthuri Hartert, 1906a: 299 (Wetter). Now Pachycephala macrorhyncha calliope Bonaparte, 1850. See Galbraith, 1956: 202, Dickinson, 2003: 476, and Boles, 2007: 421. HOLOTYPE: AMNH 657408, adult male, collected on Wetar (5 Wetter) Island, 07.48S, 126.18E (White and Bruce, 1986: 491), Lesser Sunda Islands, Indonesia, on 14 September 1902, by Heinrich Kühn (no. 5498). From the Rothschild Collection. COMMENTS: Hartert cited Kühn’s unique field number of the holotype in the original description. Earlier, in his report on Kühn’s complete Wetar collection, Hartert (1904a: 210), under Pachycephala calliope, listed six males and one female, giving Kühn’s field numbers for them. Four male and one female paratypes came to AMNH with the Rothschild Collection: AMNH 657409 (Kühn no. 5497), AMNH 657410 (5500), AMNH 657411 (5499), AMNH 657412 (5634), and AMNH 657413 (5517). AMNH 295113, male, collected by Kühn on Wetar, was purchased from the dealer W.F.H. Rosenberg by Leonard C. Sanford for AMNH; it has no Kühn field number on the label, and so there is no way of knowing whether this is the potential fifth male paralectotype, specimen no. 5496 listed by Hartert.
description: Published as part of Pachycephalidae, Aegithalidae, Remizidae, Paridae, Sittidae, Neosittidae, Certhiidae, Rhabdornithidae, Climacteridae, Dicaeidae, Pardalotidae, Nectariniidae, And & Lecroy, Mary, 2010, Type Specimens Of Birds In The American Museum Of Natural History Part 8. Passeriformes:, pp. 1-178 in Bulletin of the American Museum of Natural History 2010 (333) on pages 21-22
description: {"references": ["Hartert, E. 1906 a. On the birds of the island of Babber. Novitates Zoologicae 13: 288 - 302.", "Galbraith, I. C. J. 1956. Variation, relationships and evolution in the Pachycephala pectoralis superspecies (Aves, Muscicapidae). Bulletin of the British Museum (Natural History) Zoology 4: 133 - 222, map.", "Dickinson, E. C. (editor). 2003. The Howard & Moore complete checklist of the birds of the world. 3 rd ed. London: Christopher Helm, 1039 pp.", "Boles, W. E. 2007. Family Pachycephalidae. In: J. del Hoyo, A. Elliott, and D. A. Christie (editors), Handbook of birds of the world, volume 12: 374 - 437. Barcelona: Lynx Edicions, 816 pp., 56 pls, 436 photographs.", "White, C. M. N., and M. D. Bruce. 1986. The birds of Wallacea. BOU Check-list no. 7. London: British Ornithologists' Union, 524 pp.", "Hartert, E. 1904 a. The birds of the South-west Islands, Wetter, Roma, Kisser, Letti and Moa. Novitates Zoologicae 11: 174 - 221."]}
Growth of Dislocation Clusters in Directionally Solidified Multicrystalline Silicon
Creators: name: Ryningen, B.
name: Stokkan, G.
name: Modanese, C.
name: Lohne, O.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Feedstock, Crystallisation and Wafering

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1253-1256
description: Two observations frequently found in industrially scale as well as pilot scale directionally solidified multicrystalline silicon ingots have been explained by a mechanism where dislocations close to the solid liquid interface are attracted by the interface and where slip on the {11 0} <110> system occur and creates single ended Frank-Read sources. This mechanism explains why: Samples cut parallel to the growth direction generally shows a lower dislocation density than wafers cut perpendicular to the growth direction, and that grains filled with
dislocations in the samples cut parallel to the growth direction often is V-shaped. It can also explain the dislocation pattern where dislocations are lining up perpendicular to twin boundaries in twinned areas.
Generalized atomic limit of a double quantum dot coupled to superconducting leads
Creators: name: Žonda, Martin
name: Zalom, Peter
name: Novotný, Tomáš
name: Loukeris, Georgios
name: Bätge, Jakob
name: Pokorný, Vladislav
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present an exactly solvable effective model of a double quantum dot coupled to superconducting leads. This model is a generalization of the well-known superconducting atomic limit approximation of the paradigmatic superconducting impurity Anderson model. However, in contrast to the standard atomic limit and other effective models, it gives quantitatively correct predictions for the quantum phase transition boundaries, subgap bound states as well as Josephson supercurrent in a broad range of parameters including experimentally relevant regimes. The model allows fast and reliable parameter scans important for the preparation and analysis of experiments which are otherwise inaccessible by more precise but computational heavy methods such as quantum Monte Carlo or the numerical renormalization group. The scans also allowed us to identify and investigate new previously unnoticed phase diagram regimes. We provide a thorough analysis of the strengths and limitations of the effective model and benchmark its predictions against numerical renormalization group results.
description: 17 pages, 15 figures
Optical Properties of  Silicon Nanoparticles  for Photovoltaic Applications
Creators: name: Summonte, C.
name: Centurioni, E.
name: Desalvo, A.
name: Canino, M.
name: Mirabella, S.
name: Agosta, R.
name: Simone, F.
name: Terrasi, A.
name: Di Stefano, M.A.
name: Di Marco, S.
name: Ravesi, S.
name: Lombardo, S.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Advanced Photovoltaics
New Materials, Cells and Modules

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 317-321
description: The optical properties of silicon nanodots embedded in a dielectric matrix are studied. A critical
review of the existing literature is presented, with focus on the specificity of the compositional and structural
characteristics of the involved material. The results are applied to the simulation of spectrophotometric
measurements taken on thermally treated silicon rich oxide (SRO) grown by Plasma Enhanced Chemical Vapor
Deposition. Our results include the determination of the optical properties of the SRO host matrix. Simulation of the
R&T data indicate the precipitation of amorphous silicon clusters for annealing temperatures below 1000°C, and
subsequent crystallization for higher temperatures. The dielectric function of silicon nanoparticles that form after
annealing is observed to closely approach the literature data obtained for samples fabricated by thermal precipitation
from a silicon implanted SiO2 matrix.
title: Striking Switchmen
title: Railroad Worker Unionism in the United States, 1877-1935
titleType: Subtitle
Creators: name: Kipers, Kevin
Publisher: name: Washington State University
Year: 2022

description: In 1877, a group of railroad workers known as the switchmen formally unionized in the midst of an economic recession resulting in deteriorating working conditions. From 1877 to 1935, the switchmen periodically organized in the United States against railroad managers through a combination craft-exclusive unionism and federated industrial unionism. Existing scholarship documents shifts between craft and federated unionism among railroaders in the late nineteenth and early twentieth centuries with railway engineers and firemen often at the center of the narrative. This study places switchmen at the center of the narrative to reveal the central role they played in unionizing for improved working conditions within a capitalist wage labor system via peaceful arbitration or strikes. Furthermore, switchmen represented a microcosm of the broader American labor movements, which frequently ebbed between conservative trade unionism aimed at negotiating changes to employment terms for their own craftsmen and progressive industrial unionism intended to obtain more substantial changes across craft lines. Histories of the switchmen also reveal their influence on federal legislation related to labor laws and worker benefits. In totality, the switchmen resulted in neither total successes or failures, but uncover the give-and-take nature of labor negotiations and their agency in employment disputes.
Entanglement and corner Hamiltonian spectra of integrable open spin chains
Creators: name: Kim, Panjin
name: Katsura, Hosho
name: Trivedi, Nandini
name: Han, Jung Hoon
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entanglement spectra (ES) for the critical SU(N) (2 <= N <= 4) spin chains and other integrable models of finite length are studied with the density matrix renormalization group method. For all models under investigation, the level spacings and the degeneracy structure of the ES are in excellent agreement with the spectra of the corner Hamiltonian, defined as the generator of the associated corner transfer matrix. The correspondence holds between the ES (n) at the n-th cut position from the edge of the spin model, and the corner Hamiltonian of length n, for all small values of n. The cut position dependence of the ES shows a period-N oscillatory behavior for a given SU(N) chain, reminiscent of the oscillatory part of the entanglement entropy observed in the past for the same models. Oscillations of the ES do not die out in the bulk of the chain, in contrast to the asymptotically vanishing oscillation of the entanglement entropy. Heuristic argument based on Young tableaux consideration can explain the period-N structure of the ES qualitatively.
title: The Self-Efficacy Scale for Parenting Adolescents
title: Development and Initial Validation
titleType: Subtitle
Creators: name: McDougall, Katrina Helen
Publisher: name: Washington State University
Year: 2022

description: Adolescence can be a difficult developmental period for children and their parents. During this time, parents need to develop new skills, and their perceived self-efficacy for parenting their adolescent may decrease. However, few measures exist that assess self-efficacy for parenting adolescents, and of those that do, none have been demonstrated to be psychometrically sound. The purpose of this study was to develop the Self-efficacy Scale for Parenting Adolescents (SEPA), a measure of self-efficacy for parents of adolescents that assesses confidence in enacting behaviors representative of successful adolescent parenting. A preliminary version of the self-efficacy scale was developed in Study 1, which was completed by 305 parents of adolescents. An EFA was conducted and a four-factor model with reduced items was recommended. In Study 2, a CFA was conducted on a revised version of SEPA which provided further support for a four-factor model and supported SEPA’s convergent and incremental validity. The Self-efficacy Scale for Parenting Adolescents appears to be a promising new measure for assessing self-efficacy for parenting adolescents between the ages of 12 and 18.
Distributed Fusion with Multi-Bernoulli Filter based on Generalized Covariance Intersection
Creators: name: Wang, Bailu
name: Yi, Wei
name: Hoseinnezhad, Reza
name: Li, Suqi
name: Kong, Lingjiang
name: Yang, Xiaobo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we propose a distributed multi-object tracking algorithm through the use of multi-Bernoulli (MB) filter based on generalized Covariance Intersection (G-CI). Our analyses show that the G-CI fusion with two MB posterior distributions does not admit an accurate closed-form expression. To solve this challenging problem, we firstly approximate the fused posterior as the unlabeled version of $δ$-generalized labeled multi-Bernoulli ($δ$-GLMB) distribution, referred to as generalized multi-Bernoulli (GMB) distribution. Then, to allow the subsequent fusion with another multi-Bernoulli posterior distribution, e.g., fusion with a third sensor node in the sensor network, or fusion in the feedback working mode, we further approximate the fused GMB posterior distribution as an MB distribution which matches its first-order statistical moment. The proposed fusion algorithm is implemented using sequential Monte Carlo technique and its performance is highlighted by numerical results.
description: 14 pages, 13 figures, under review for IEEE Trans. on Signal Process Volume: 65, Issue: 1, Jan.1, 1 2017
Pachycephala melanura subsp. dammeriana Hartert
Creators: name: Pachycephalidae
name: Aegithalidae
name: Remizidae
name: Paridae
name: Sittidae
name: Neosittidae
name: Certhiidae
name: Rhabdornithidae
name: Climacteridae
name: Dicaeidae
name: Pardalotidae
name: Nectariniidae, And
name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Pachycephalidae
Pachycephala

description: Pachycephala melanura dammeriana Hartert Pachycephala melanura dammeriana Hartert, 1900a: 17 (Dammer Island in the Banda Sea). Now Pachycephala macrorhyncha dammeriana Hartert, 1900. See Dickinson, 2003: 476, and Boles, 2007: 421. LECTOTYPE: AMNH 657414, adult male, collected at Wulur, 07.09S, 128.39E (Times Atlas), Damar (5 Dammer) Island, Moluccas, Indonesia, on 27 November 1898, by Heinrich Kühn (no. 1092). From the Rothschild Collection. COMMENTS: Hartert did not designate a type in the original description; later he (Hartert, 1920a: 448) listed Kühn’s specimen number 1092 as the type, thereby designating it the lectotype. It bears a Rothschild type label and Kühn’s label, marked ‘‘Type.’’ In the original description, Hartert did not say how many specimens he had, only that he had a single female; Hartert (1906a: 299) gave measurements for five males. Six specimens came to AMNH with the Rothschild Collection, but four are marked as males and two as females. It is possible that Hartert considered one of the females to be an immature male, as its wing measurement, 90 mm, falls within those he gave for males (Hartert, 1906a: 299). The second female is smaller and shows signs of immaturity. The five paratypes are: AMNH 657415–657419, collected on Damar by Kühn in November and December 1898.
description: Published as part of Pachycephalidae, Aegithalidae, Remizidae, Paridae, Sittidae, Neosittidae, Certhiidae, Rhabdornithidae, Climacteridae, Dicaeidae, Pardalotidae, Nectariniidae, And & Lecroy, Mary, 2010, Type Specimens Of Birds In The American Museum Of Natural History Part 8. Passeriformes:, pp. 1-178 in Bulletin of the American Museum of Natural History 2010 (333) on page 22
description: {"references": ["Hartert, E. 1900 a. The birds of Dammer Island in the Banda Sea. Novitates Zoologicae 7: 12 - 24.", "Dickinson, E. C. (editor). 2003. The Howard & Moore complete checklist of the birds of the world. 3 rd ed. London: Christopher Helm, 1039 pp.", "Boles, W. E. 2007. Family Pachycephalidae. In: J. del Hoyo, A. Elliott, and D. A. Christie (editors), Handbook of birds of the world, volume 12: 374 - 437. Barcelona: Lynx Edicions, 816 pp., 56 pls, 436 photographs.", "Hartert, E. 1920 a. Types of birds in the Tring Museum. B. Types in the general collection (contd.). Novitates Zoologicae 27: 425 - 505.", "Hartert, E. 1906 a. On the birds of the island of Babber. Novitates Zoologicae 13: 288 - 302."]}