cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An Influence-based Approach for Root Cause Alarm Discovery in Telecom Networks
Creators: name: Zhang, Keli
name: Kalander, Marcus
name: Zhou, Min
name: Zhang, Xi
name: Ye, Junjian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Alarm root cause analysis is a significant component in the day-to-day telecommunication network maintenance, and it is critical for efficient and accurate fault localization and failure recovery. In practice, accurate and self-adjustable alarm root cause analysis is a great challenge due to network complexity and vast amounts of alarms. A popular approach for failure root cause identification is to construct a graph with approximate edges, commonly based on either event co-occurrences or conditional independence tests. However, considerable expert knowledge is typically required for edge pruning. We propose a novel data-driven framework for root cause alarm localization, combining both causal inference and network embedding techniques. In this framework, we design a hybrid causal graph learning method (HPCI), which combines Hawkes Process with Conditional Independence tests, as well as propose a novel Causal Propagation-Based Embedding algorithm (CPBE) to infer edge weights. We subsequently discover root cause alarms in a real-time data stream by applying an influence maximization algorithm on the weighted graph. We evaluate our method on artificial data and real-world telecom data, showing a significant improvement over the best baselines.
Szczepan Rudka, Poza cenzurą. Wrocławska prasa bezdebitowa 1973-1989
Creators: name: Schlott, Wolfgang
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2002

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 51 Nr. 4 (2002)
Cosmological implications of the KATRIN experiment
Creators: name: Kristiansen, Jostein R.
name: Elgaroy, Oystein
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The upcoming Karlsruhe Tritium Neutrino (KATRIN) experiment will put unprecedented constraints on the absolute mass of the electron neutrino, $\mnue$. In this paper we investigate how this information on $\mnue$ will affect our constraints on cosmological parameters. We consider two scenarios; one where $\mnue=0$ (i.e., no detection by KATRIN), and one where $\mnue=0.3$eV. We find that the constraints on $\mnue$ from KATRIN will affect estimates of some important cosmological parameters significantly. For example, the significance of $n_s<1$ and the inferred value of $Ω_Λ$ depend on the results from the KATRIN experiment.
description: 13 pages
Magnetic resonance line-shape and relaxation time studies of rotational diffusion in liquids
Creators: name: Phillips, Paul Stewart
Publisher: name: University of British Columbia
Year: 2010

description: A new numerical analysis method, dispersion vs. absorption plots (DISPA), has been developed for ESR. This method may be used for semi-quantitative line-shape studies and is useful both as a diagnostic and analytical tool. In addition it provides a method of automatic phasing for magnetic resonance spectra. Numerous examples of its applications, both simulated and experimental are presented, with emphasis on spin-probe studies. The digital acquisition and processing methods used for these studies are also briefly discussed. ESR and NMR relaxation time studies of the bis(dialkyl-N-carbodithioate) metal(II) class of spin-probes have been performed. The T₁,'s of ¹³C and ²H enriched nickel complex were measured by NMR. The line-widths of ⁶³Cu complex were measured by ESR and analysed by Redfield theory. The two sets of results were combined to give the principal elements of the rotational diffusion tensor for the pyrollidine derivative in toluene. This is the first time that ESR and NMR studies have been combined to measure a diffusion tensor. A general strategy for this approach is presented. ESR data from previous work has been re-analysed in the light of the new results. The analysis shows that the commonly used assumption of isotropic diffusion is extremely misleading.
Bernhard Kirk, Schlesien aus der Luft. Aktuelle Luftbilder vom heutigen Schlesien.
Creators: name: Kreft, Wolfgang
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2003

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 52 Nr. 3 (2003)
Flexoelectricity and competition of time scales in electroconvection
Creators: name: Toth-Katona, Tibor
name: Eber, Nandor
name: Buka, Agnes
name: Krekhov, Alexei
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Novel behavior in electroconvection (EC) has been detected in nematic liquid crystals (NLCs) under the condition of comparable timescales of the director relaxation and the period of the driving ac voltage. The studied NLCs exhibit standard EC (s-EC) at the onset of the instability, except one compound in which nonstandard EC (ns-EC) has been detected. In the relevant frequency region, the threshold voltage for conductive s-EC bends down considerably, while for dielectric s-EC it bends up strongly with the decrease of the driving frequency. We show that inclusion of the flexoelectric effect into the theoretical description of conductive s-EC leads to quantitative agreement, while for dielectric s-EC a qualitative agreement is achieved. The frequency dependence of the threshold voltage for ns-EC strongly resembles that of the dielectric s-EC.
description: 13 pages, 14 figures, submitted
Critical endpoint of QCD in a finite volume
Creators: name: Bernhardt, Julian
name: Fischer, Christian S.
name: Isserstedt, Philipp
name: Schaefer, Bernd-Jochen
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the impact of finite volume and the corresponding restrictions on long-range correlations on the location of the critical endpoint in the QCD phase diagram. To this end, we employ a sophisticated combination of lattice Yang--Mills theory and a (truncated) version of Dyson--Schwinger equations in Landau gauge for $2 + 1$ quark flavors that has been studied extensively in the past. In the infinite-volume limit, this system predicts a critical endpoint at moderate temperature and large chemical potential. We study this system at small and intermediate volumes and determine the dependence of the location of the critical endpoint on the boundary conditions and the volume of a three-dimensional cube with edge length $L$. We demonstrate that noticeable volume effects of more than five percent only occur for $L \lesssim 5 \, \text{fm}$ and that volumes as large as $L^3 \gtrsim (8 \, \text{fm})^3$ are very close to the infinite-volume limit.
description: 10 pages, 5 figures; v2: extended version including the zero mode, minor title change, version published in PRD
"Wissenschaftliches Rüstzeug für aktuelle politische Fragen." Kritische Anmerkungen zu Werk und Wirken der Historiker Wilhelm Weizsäcker und Wilhelm Wostry
Creators: name: Hruza, Karel
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2005

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 54 Nr. 4 (2005)
Magnetic field inference in active region coronal loops using coronal rain clumps
Creators: name: Kriginsky, M.
name: Oliver, R.
name: Antolin, P.
name: Kuridze, D.
name: Freij, N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Aims. We aim to infer information about the magnetic field in the low solar corona from coronal rain clumps using high-resolution spectropolarimetric observations in the Ca ii 8542 A line obtained with the Swedish 1-m Solar Telescope. Methods. The weak-field approximation (WFA) provides a simple tool to obtain the line-of-sight component of the magnetic field from spectropolarimetric observations. We adapted a method developed in a previous paper in order to assess the different conditions that must be satisfied in order to properly use the WFA for the data at hand. We also made use of velocity measurements in order to estimate the plane-of-the-sky magnetic field component, so that the magnetic field vector could be inferred. Results. We have inferred the magnetic field vector from a data set totalling 100 spectral scans in the Ca ii 8542 A line, containing an off-limb view of the lower portion of catastrophically cooled coronal loops in an active region. Our results, albeit limited by the cadence and signal-to-noise ratio of the data, suggest that magnetic field strengths of hundreds of Gauss, even reaching up to 1000 G, are omnipresent at coronal heights below 9 Mm from the visible limb. Our results are also compatible with the presence of larger magnetic field values such as those reported by previous works. However, for large magnetic fields, the Doppler width from coronal rain is not that much larger than the Zeeman width, thwarting the application of the WFA. Furthermore, we have determined the temperature, T , and microturbulent velocity, $ξ$, of coronal rain clumps and off-limb spicules present in the same data set, and we have found that the former ones have narrower T and $ξ$ distributions, their average temperature is similar, and coronal rain has microturbulent velocities smaller than those of spicules
Singular integrals on Sierpinski gaskets
Creators: name: Chousionis, Vasilis
Publisher: name: arXiv
Year: 2008
Subjects: subject: Functional Analysis (math.FA)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42B20

description: We construct a class of singular integral operators associated with homogeneous Calderón-Zygmund standard kernels on $d$-dimensional, $d <1$, Sierpinski gaskets $E_d$. These operators are bounded in $L^2(μ_d)$ and their principal values diverge $μ_d$ almost everywhere, where $μ_d$ is the natural (d-dimensional) measure on $E_d$.
Breakdown of Lorentz Invariance for Spin-1/2 Particle Motion in Curved Space-Time with Applications to Muon Decay
Creators: name: Singh, Dinesh
name: Mobed, Nader
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper explores the properties of the Pauli-Lubanski spin vector for the general motion of spin-1/2 particles in curved space-time. Building upon previously determined results in flat space-time, it is shown that the associated Casimir scalar for spin possesses both gravitational contributions and frame-dependent contributions due to non-inertial motion, where the latter represents a possible quantum violation of Lorentz invariance that becomes significant at the Compton wavelength scale. When applied to muon decay near the event horizon of a microscopic Kerr black hole, it is shown that its differential cross section is strongly affected by curvature, with particular sensitivity to changes in the black hole's spin angular momentum. In the absence of curvature, the non-inertial contributions to the decay spectrum are also identified and explored in detail, where its potential for observation is highest for large electron opening angles. It is further shown how possible contributions to noncommutative geometry can emerge from within this formalism at some undetermined length scale. Surprisingly, while the potential exists to identify noncommutative effects in muon decay, the relevant terms make no contribution to the decay spectrum, for reasons which remain unknown.
description: 19 pages, 15 figures; REVTeX file; v5. corrections to references; Accepted for publication in Phys. Rev. D
Unification of geometry and probability theory (Conference Program)
Creators: name: Barukčić, Ilija
Publisher: name: Zenodo
Year: 2023
Subjects: Geometry
Pythagorean theorem
Euclid's theorem
Probability
Unification
Barukcic
Ilija Barukčić
Ilija Barukcic
Barukčić
Uploaded on July 16, 2023
Justification of Version 4 (August 7, 2023): Conference Programme

description: Background:
 We may ask a number of questions about the nature of the relationship between geometry and probability. Can both accurately model objective reality at all while the same is changing permanently?
 Methods:
 Various aspects of the relationship between geometry and probability have been re-investigated while relying on a hypothetico deductive method.
 Results:
 It turns out that an interplay between two basic theorems of geometry, Euclid’s theorem and Pythagorean theorem, is a possible theoretical foundation of probability theory too.
 Conclusion:
 Geometry as a framework of systematic logical thinking is unified with probability theory.
description: \href{https://doi.org/10.5281/zenodo.8220676}{Zenodo Version 4}
Unification of geometry and probability theory (Certificate of Appreciation)
Creators: name: Barukčić, Ilija
Publisher: name: Zenodo
Year: 2023
Subjects: Geometry
Pythagorean theorem
Euclid's theorem
Probability
Unification
Barukcic
Ilija Barukčić
Ilija Barukcic
Barukčić
Uploaded on July 16, 2023
Justification of Version 5 (August 10, 2023): Certificate of Appreciation

description: Background:
We may ask a number of questions about the nature of the relationship between geometry and probability. Can both accurately model objective reality at all while the same is changing permanently?
Methods:
Various aspects of the relationship between geometry and probability have been re-investigated while relying on a hypothetico deductive method.
Results:
It turns out that an interplay between two basic theorems of geometry, Euclid’s theorem and Pythagorean theorem, is a possible theoretical foundation of probability theory too.
Conclusion:
Geometry as a framework of systematic logical thinking is unified with probability theory.
description: \href{https://doi.org/10.5281/zenodo.8232174}{Zenodo Version 5}
Yeshayahu A. Jelinek, The Carpathian Diaspora. The Jews of Subcarpathian Rus’ and Mukachevo 1848-1948
Creators: name: Jobst, Kerstin S.
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2009

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 58 Nr. 4 (2009)
Martin Kasper, Die Lausitzer Sorben in der Wende 1989/1990. Ein Abriss mit Dokumenten und einer Chronik
Creators: name: Krampen, Nele
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2003

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 52 Nr. 1 (2003)
Ultra-Thin Lubricant-Infused Vertical Graphene Nanoscaffolds for High-Performance Dropwise Condensation
Creators: name: Tripathy, Abinash
name: Lam, Cheuk Wing Edmond
name: Davila, Diana
name: Donati, Matteo
name: Milionis, Athanasios
name: Sharma, Chander Shekhar
name: Poulikakos, Dimos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Lubricant-infused surfaces (LIS) are highly efficient in repelling water and constitute a very promising family of materials for condensation processes occurring in a broad range of energy applications. However, the performance of LIS in such processes is limited by the inherent thermal resistance imposed by the thickness of the lubricant and supporting surface structure, as well as by the gradual depletion of the lubricant over time. Here we present a remarkable, ultra-thin (~70 nm) and conductive LIS architecture, obtained by infusing lubricant into a vertically grown graphene nanoscaffold on copper. The ultra-thin nature of the scaffold, combined with the high in-plane thermal conductivity of graphene, drastically minimize earlier limitations, effectively doubling the heat transfer performance compared to a state-of-the-art CuO LIS surface. We show that the effect of the thermal resistance to the heat transfer performance of a LIS surface, although often overlooked, can be so detrimental that a simple nanostructured CuO surface can outperform a CuO LIS surface, despite film condensation on the former. The present vertical graphene LIS is also found to be resistant to lubricant depletion, maintaining stable dropwise condensation for at least ~7 hours with no significant change of advancing contact angle and contact angle hysteresis. The lubricant consumed by the vertical graphene LIS is 52.6% less than the existing state-of-the-art CuO LIS, making also the fabrication process more economical.
Finite Element Formalism for Micromagnetism
Creators: name: Szambolics, Helga
name: Buda, Liliana-Daniela
name: Toussaint, Jean-Christophe
name: Fruchart, Olivier
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The aim of this work is to present the details of the finite element approach we developed for solving the Landau-Lifschitz-Gilbert equations in order to be able to treat problems involving complex geometries. There are several possibilities to solve the complex Landau-Lifschitz-Gilbert equations numerically. Our method is based on a Galerkin-type finite element approach. We start with the dynamic Landau-Lifschitz-Gilbert equations, the associated boundary condition and the constraint on the magnetization norm. We derive the weak form required by the finite element method. This weak form is afterwards integrated on the domain of calculus. We compared the results obtained with our finite element approach with the ones obtained by a finite difference method. The results being in very good agreement, we can state that our approach is well adapted for 2D micromagnetic systems.
description: Proceedings of conference EMF2006
Unification of geometry and probability theory (*.mp4 Video)
Creators: name: Barukčić, Ilija
Publisher: name: Zenodo
Year: 2023
Subjects: Geometry
Pythagorean theorem
Euclid's theorem
Probability
Unification
Barukcic
Ilija Barukčić
Ilija Barukcic
Barukčić
Uploaded on July 16, 2023
Justification of Version 3 (July 16, 2023): New layout. Reduction of misprints.

description: Background:
 We may ask a number of questions about the nature of the relationship between geometry and probability. Can both accurately model objective reality at all while the same is changing permanently?
 Methods:
 Various aspects of the relationship between geometry and probability have been re-investigated while relying on a hypothetico deductive method.
 Results:
 It turns out that an interplay between two basic theorems of geometry, Euclid’s theorem and Pythagorean theorem, is a possible theoretical foundation of probability theory too.
 Conclusion:
 Geometry as a framework of systematic logical thinking is unified with probability theory.
description: \href{https://doi.org/10.5281/zenodo.8152483}{Zenodo Version 3}
A factorisation-aware Matrix element emulator
Creators: name: Maître, Daniel
name: Truong, Henry
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article we present a neural network based model to emulate matrix elements. This model improves on existing methods by taking advantage of the known factorisation properties of matrix elements. In so doing we can control the behaviour of simulated matrix elements when extrapolating into more singular regions than the ones used for training the neural network. We apply our model to the case of leading-order jet production in $e^+e^-$ collisions with up to five jets. Our results show that this model can reproduce the matrix elements with errors below the one-percent level on the phase-space covered during fitting and testing, and a robust extrapolation to the parts of the phase-space where the matrix elements are more singular than seen at the fitting stage.
description: 24 pages, 8 figures, v2 accepted for publication in JHEP
Bernard Linek, : Polityka antyniemiecka na Górnym Śląsku w latach 1945-1950
Creators: name: Hofmann, Andreas R.
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2002

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 51 Nr. 4 (2002)
Purification and preliminary characterisation of β-glucosidase from Alcaligenes faecalis (ATCC 21400)
Creators: name: Day, Anthony George
Publisher: name: University of British Columbia
Year: 2010

description: A β-glucosidase was isolated from A. faecalis and purified 880 fold by a combination of classical and medium pressure chromatographic techniques to a specific activity of 31.6 units/mg. The protein was homogeneous by the criteria of SDS-PAGE and gel chromatography. The sub-unit molecular weight was determined to be 51,000 by SDS-PAGE. The apparent oligomeric molecular weight was determined to be 75,000 by Superose gel chromatography and 98,000 by Waters 1-250 gel chromatography, suggesting that the enzyme is a dimer. The enzyme was shown to be a retaining β-glucosidase with exo-glucanase activity only. The kinetic parameters of a number of substrates and inhibitors were determined allowing deductions to be made about the nature of the active site and catalytic mechanism. The Km's determined for cellobiose and PNPG were low for a bacterial β-glucosidase, 0.70 mM and 0.083 mM respectively. In the cellodextrin series, cellobiose to cellopentaose, the enzyme was most efficient (as defined by Vm/Km) with cellotriose as substrate. In common with other cellulolytic β-glucosidases, the glycone site showed a high specificity for glucose (although it would tolerate some modifications) and poor specificity at the aglycone site. Catalytic activity was (unusually) observed with p-nitrophenyl-β-D-mannopyranoside as substrate. Activation energies were determined by means of Arrhenius plots.
Directed porosity on conformal iterated function systems and weak convergence of singular integrals
Creators: name: Chousionis, Vasilis
Publisher: name: arXiv
Year: 2008
Subjects: subject: Dynamical Systems (math.DS)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: The aim of the present paper is twofold. We study directed porosity in connection with conformal iterated function systems (CIFS) and with singular integrals. We prove that limit sets of finite CIFS are porous in a stronger sense than already known. Furthermore we use directed porosity to establish that truncated singular integral operators, with respect to general Radon measures $μ$ and kernels $K$, converge weakly in some dense subspaces of $L^2(μ)$ when the support of $μ$ belongs to a broad family of sets. This class contains many fractal sets like CIFS's limit sets.
Marek Słoń, Die Spitäler Breslaus im Mittelalter.
Creators: name: Irgang, Winfried
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2003

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 52 Nr. 3 (2003)
Unification of geometry and probability theory (Certificate of Appreciation)
Creators: name: Barukčić, Ilija
Publisher: name: Zenodo
Year: 2023
Subjects: Geometry
Pythagorean theorem
Euclid's theorem
Probability
Unification
Barukcic
Ilija Barukčić
Ilija Barukcic
Barukčić
Uploaded on July 16, 2023
Justification of Version 5 (August 10, 2023): Certificate of Appreciation

description: Background:
 We may ask a number of questions about the nature of the relationship between geometry and probability. Can both accurately model objective reality at all while the same is changing permanently?
 Methods:
 Various aspects of the relationship between geometry and probability have been re-investigated while relying on a hypothetico deductive method.
 Results:
 It turns out that an interplay between two basic theorems of geometry, Euclid’s theorem and Pythagorean theorem, is a possible theoretical foundation of probability theory too.
 Conclusion:
 Geometry as a framework of systematic logical thinking is unified with probability theory.
description: \href{https://doi.org/10.5281/zenodo.8232174}{Zenodo Version 5}
Multi-Attributed and Structured Text-to-Face Synthesis
Creators: name: Wadhawan, Rohan
name: Drall, Tanuj
name: Singh, Shubham
name: Chakraverty, Shampa
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Generative Adversarial Networks (GANs) have revolutionized image synthesis through many applications like face generation, photograph editing, and image super-resolution. Image synthesis using GANs has predominantly been uni-modal, with few approaches that can synthesize images from text or other data modes. Text-to-image synthesis, especially text-to-face synthesis, has promising use cases of robust face-generation from eye witness accounts and augmentation of the reading experience with visual cues. However, only a couple of datasets provide consolidated face data and textual descriptions for text-to-face synthesis. Moreover, these textual annotations are less extensive and descriptive, which reduces the diversity of faces generated from it. This paper empirically proves that increasing the number of facial attributes in each textual description helps GANs generate more diverse and real-looking faces. To prove this, we propose a new methodology that focuses on using structured textual descriptions. We also consolidate a Multi-Attributed and Structured Text-to-face (MAST) dataset consisting of high-quality images with structured textual annotations and make it available to researchers to experiment and build upon. Lastly, we report benchmark Frechet's Inception Distance (FID), Facial Semantic Similarity (FSS), and Facial Semantic Distance (FSD) scores for the MAST dataset.
description: Accepted by IEEE TEMSMET 2020, Camera Ready Version
Connecting Geodetic VLBI Telescope Generations at The Ny-Ålesund Geodetic Earth Observatory Through Short-Baseline Interferometry – Final Results
Creators: name: Handirk, Rebekka
Publisher: name: Zenodo
Year: 2025
Subjects: VLBI
Local ties
Ny-Ålesund
S/X
VGOS
legacy
NYALES20
NYALE13S
NYALE13N

description: The transition of geodetic Very Long Baseline Interferometry (VLBI) from legacy S/X telescopes to the modern VLBI Global Observing System (VGOS) necessitates careful integration of the new network with existing infrastructure. This presentation will showcase the final results of the NYTIE campaign, conducted at the Ny-Ålesund Geodetic Earth Observatory, where the decommissioning of the legacy S/X telescope NYALES20 was preceded by an extensive short-baseline interferometry campaign to the new VGOS telescopes NYALE13S and NYALE13N. 

Comparing VLBI results with surveying campaign using total station and GNSS, we find very good agreement in the horizontal components, at the 2-mm level, and slightly less good agreement in the vertical component (up to 8 mm).

We find that dedicated measurements, such as NYTIE, give significantly improved results compared to the use of regular IVS-R1 and IVS-R4 sessions for obtaining local-tie information. We assess advantages and limitations for group- and phase-delay results, and we note a significant offset (up to 11 and 23 mm for NYALE13S and NYALE13N, resp.) between the two, also found in the ONTIE project.

Lastly, we present our lessons learned from this project with the aim of encouraging other observatories that also host telescopes of both generations to undertake VLBI local-tie measurements.
Characterization and Modeling of Native MOSFETs Down to 4.2 K
Creators: name: Zhang, Yuanke
name: Lu, Tengteng
name: Wang, Wenjie
name: Zhang, Yujing
name: Xu, Jun
name: Luo, Chao
name: Guo, Guoping
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The extremely low threshold voltage (Vth) of native MOSFETs (Vth~0V@300K) is conducive to the design of cryogenic circuits. Previous research on cryogenic MOSFETs mainly focused on the standard threshold voltage (SVT) and low threshold voltage (LVT) MOSFETs. In this paper, we characterize native MOSFETs within the temperature range from 300K to 4.2K. The cryogenic Vth increases up to ~0.25V (W/L=10um/10um) and the improved subthreshold swing (SS)~14.30mV/dec@4.2K. The off-state current (Ioff) and the gate-induced drain leakage (GIDL) effect are ameliorated greatly. The step-up effect caused by the substrate charge and the transconductance peak effect caused by the energy quantization in different sub-bands are also discussed. Based on the EKV model, we modified the mobility calculation equations and proposed a compact model of large size native MOSFETs suitable for the range of 300K to 4.2K. The mobility-related parameters are extracted via a machine learning approach and the temperature dependences of the scattering mechanisms are analyzed. This work is beneficial to both the research on cryogenic MOSFETs modeling and the design of cryogenic CMOS circuits for quantum chips.
description: 6 pages, 8 figures
Hydronymia Europaea. Lieferung 17: Gewässernamen im Flußgebiet des San. Teil 1: Die fließenden Gewässer, A-O. (Nazwy wodne dorzecza Sanu. Część 1: Nazwy wód płynących, A-O.); Lieferung 18: Gewässernamen im Flußgebiet des San. Teil I: Die fließenden Gewäss
Creators: name: Hartmann, Stefan
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2005

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 54 Nr. 3 (2005)
Local spin Hall conductivity
Creators: name: Rauch, Tomáš
name: Töpler, Franziska
name: Mertig, Ingrid
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spin Hall conductivity is usually calculated for periodic solids, while the knowledge of local contributions from inhomogeneous regions like interfaces or surfaces would be desirable. In this work we derive a local expression for the spin Hall conductivity of two-dimensional systems in analogy to the local anomalous Hall conductivity discussed recently. Our approach is applicable to heterogeneous fully bounded systems and nanoribbons with both open and periodic boundary conditions.
Searches for New Physics at HERA
Creators: name: Sauvan, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The high energy programme of the HERA collider ended in March 2007. During the whole HERA programme, a combined total integrated luminosity of 1 fb$^{-1}$ was collected by the H1 and ZEUS experiments. In this context, an overview of the most recent results of both experiments concerning searches for new physics is presented. The topics covered are searches for contact interactions, leptoquarks and excited leptons, as well as studies of the isolated lepton and multi-lepton topologies, and a general signature based search.
description: 5 pages, 5 figures; To appear in the proceedings of Hadron Collider Physics Symposium 2007 (HCP2007), La Biodola, Isola d'Elba (Italy), May 20 - 26, 2007
Analytical Approach to the One-Dimensional Disordered Exclusion Process with Open Boundaries and Random Sequential Dynamics
Creators: name: Loulidi, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A one dimensional disordered particle hopping rate asymmetric exclusion process (ASEP) with open boundaries and a random sequential dynamics is studied analytically. Combining the exact results of the steady states in the pure case with a perturbative mean field-like approach the broken particle-hole symmetry is highlighted and the phase diagram is studied in the parameter space $(α,β)$, where $α$ and $β$ represent respectively the injection rate and the extraction rate of particles. The model displays, as in the pure case, high-density, low-density and maximum-current phases. All critical lines are determined analytically showing that the high-density low-density first order phase transition occurs at $α\neq β$. We show that the maximum-current phase extends its stability region as the disorder is increased and the usual $1/\sqrt{\ell}$-decay of the density profile in this phase is universal. Assuming that some exact results for the disordered model on a ring hold for a system with open boundaries, we derive some analytical results for platoon phase transition within the low-density phase and we give an analytical expression of its corresponding critical injection rate $α^*$. As it was observed numerically$^{(19)}$, we show that the quenched disorder induces a cusp in the current-density relation at maximum flow in a certain region of parameter space and determine the analytical expression of its slope. The results of numerical simulations we develop agree with the analytical ones.
description: 23 pages, 7 figures. to appear in J. Stat. Phys
Gravitational Multipole Renormalization
Creators: name: Almeida, Gabriel Luz
name: Foffa, Stefano
name: Sturani, Riccardo
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the effect of scattering gravitational radiation off the static background curvature, up to second order in Newton constant, known in literature as tail and tail-of-tail processes, for generic electric and magnetic multipoles. Starting from the multipole expansion of composite compact objects, and as expected due to the known electric quadrupole case, both long- and short-distance (UV) divergences are encountered. The former disappears from properly defined observables, the latter are renormalized and their associated logarithms give rise to a classical renormalization group flow. UV divergences alert for incompleteness of the multipolar description of the composite source, and are expected not to be present in a UV-complete theory, as explicitly derived in literature for the case of conservative dynamics. Logarithmic terms from tail-of-tail processes associated to generic magnetic multipoles are computed in this work for the first time.
description: 20 pages, 1 figure. Typos corrected in v2, which is the version published in PRD
Rolf Vieweg, Die böhmische Enklave Schirgiswalde zwischen Österreich und Sachsen von 1809 bis 1845
Creators: name: Bahlcke, Joachim
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2003

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 52 Nr. 1 (2003)
TMC-1C: an accreting starless core
Creators: name: Schnee, S.
name: Caselli, P.
name: Goodman, A.
name: Arce, H. G.
name: Ballesteros-Paredes, J.
name: Kuchibhotla, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have mapped the starless core TMC-1C in a variety of molecular lines with the IRAM 30m telescope. High density tracers show clear signs of self-absorption and sub-sonic infall asymmetries are present in N2H+ (1-0) and DCO+ (2-1) lines. The inward velocity profile in N2H+ (1-0) is extended over a region of about 7,000 AU in radius around the dust continuum peak, which is the most extended ``infalling'' region observed in a starless core with this tracer. The kinetic temperature (~12 K) measured from C17O and C18O suggests that their emission comes from a shell outside the colder interior traced by the mm continuum dust. The C18O (2-1) excitation temperature drops from 12 K to ~10 K away from the center. This is consistent with a volume density drop of the gas traced by the C18O lines, from ~4x10^4 cm^-3 towards the dust peak to ~6x10^3 cm^-3 at a projected distance from the dust peak of 80" (or 11,000 AU). The column density implied by the gas and dust show similar N2H+ and CO depletion factors (f_D < 6). This can be explained with a simple scenario in which: (i) the TMC-1C core is embedded in a relatively dense environment (H2 ~10^4 cm^-3), where CO is mostly in the gas phase and the N2H+ abundance had time to reach equilibrium values; (ii) the surrounding material (rich in CO and N2H+) is accreting onto the dense core nucleus; (iii) TMC-1C is older than 3x10^5 yr, to account for the observed abundance of N2H+ across the core (~10^-10 w.r.t. H2); and (iv) the core nucleus is either much younger (~10^4 yr) or ``undepleted'' material from the surrounding envelope has fallen towards it in the past 10,000 yr.
description: 29 pages, including 5 tables and 15 figures
Detecting Small Objects in Thermal Images Using Single-Shot Detector
Creators: name: Zhang, Hao
name: Hong, Xianggong
name: Zhu, Li
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: SSD (Single Shot Multibox Detector) is one of the most successful object detectors for its high accuracy and fast speed. However, the features from shallow layer (mainly Conv4_3) of SSD lack semantic information, resulting in poor performance in small objects. In this paper, we proposed DDSSD (Dilation and Deconvolution Single Shot Multibox Detector), an enhanced SSD with a novel feature fusion module which can improve the performance over SSD for small object detection. In the feature fusion module, dilation convolution module is utilized to enlarge the receptive field of features from shallow layer and deconvolution module is adopted to increase the size of feature maps from high layer. Our network achieves 79.7% mAP on PASCAL VOC2007 test and 28.3% mmAP on MS COCO test-dev at 41 FPS with only 300x300 input using a single Nvidia 1080 GPU. Especially, for small objects, DDSSD achieves 10.5% on MS COCO and 22.8% on FLIR thermal dataset, outperforming a lot of state-of-the-art object detection algorithms in both aspects of accuracy and speed.
Toomas Karjahärm, Väino Sirk, Vaim ja vőim. Eesti haritlaskond 1917-1940.
Creators: name: Brüggemann, Karsten
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2003

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 52 Nr. 3 (2003)
The singular limit of the Allen-Cahn equation and the FitzHugh-Nagumo system
Creators: name: Alfaro, Matthieu
name: Hilhorst, Danielle
name: Matano, Hiroshi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider an Allen-Cahn type equation with a bistable nonlinearity associated to a double-well potential whose well-depths can be slightly unbalanced, and where the coefficient of the nonlinear reaction term is very small. Given rather general initial data, we perform a rigorous analysis of both the generation and the motion of interface. More precisely we show that the solution develops a steep transition layer within a small time, and we present an optimal estimate for its width. We then consider a class of reaction-diffusion systems which includes the FitzHugh-Nagumo system as a special case. Given rather general initial data, we show that the first component of the solution vector develops a steep transition layer and that all the results mentioned above remain true for this component.
Quantum MERA Channels
Creators: name: Giovannetti, Vittorio
name: Montangero, Simone
name: Fazio, Rosario
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Tensor networks representations of many-body quantum systems can be described in terms of quantum channels. We focus on channels associated with the Multi-scale Entanglement Renormalization Ansatz (MERA) tensor network that has been recently introduced to efficiently describe critical systems. Our approach allows us to compute the MERA correspondent to the thermodynamic limit of a critical system introducing a transfer matrix formalism, and to relate the system critical exponents to the convergence rates of the associated channels.
description: 4 pages, 2 figures
Sankt Georg und sein Bilderzyklus in Neuhaus/Böhmen (Jindřichův Hradec). Historische, kunsthistorische und theologische Beiträge
Creators: name: Beuttel, Jan-Erik
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2005

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 54 Nr. 3 (2005)
Current to frequency conversion in a Josephson circuit
Creators: name: Nguyen, F.
name: Boulant, N.
name: Ithier, G.
name: Bertet, P.
name: Pothier, H.
name: Vion, D.
name: Esteve, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The voltage oscillations which occur in an ideally current-biased Josephson junction, were proposed to make a current standard for metrology. We demonstrate similar oscillations in a more complex Josephson circuit derived from the Cooper pair box: the quantronium. When a constant current I is injected in the gate capacitor of this device, oscillations develop at the frequency fB=I/2e, with e the electron charge. We detect these oscillations through the sidebands induced at multiples of fB in the spectrum of a microwave signal reflected on the circuit, up to currents I exceeding 100 pA. We discuss the potential interest of this current to frequency conversion experiment for metrology.
description: To be published in Physical Review Letters
Benchmarking regulator-sourced 2PI and average 1PI flow equations in zero dimensions
Creators: name: Millington, Peter
name: Saffin, Paul M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We elucidate the regulator-sourced 2PI and average 1PI approaches for deriving exact flow equations in the case of a zero dimensional quantum field theory, wherein the scale dependence of the usual renormalisation group evolution is replaced by a simple parametric dependence. We show that both approaches are self-consistent, while highlighting key differences in their behaviour and the structure of the would-be loop expansion.
description: revtex format; 22 pages, 2 figures; includes an update to reference [8] and minor corrections in line with published version
Absence of local unconditional structure in spaces of smooth functions on the torus of arbitrary dimension
Creators: name: Tselishchev, Anton
Publisher: name: arXiv
Year: 2021
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: Consider a finite collection $\{T_1, \ldots, T_J\}$ of differential operators with constant coefficients on $\mathbb{T}^n$ ($n\geq 2$) and the space of smooth functions generated by this collection, namely, the space of functions $f$ such that $T_j f \in C(\mathbb{T}^n)$, $1\leq j\leq J$. We prove that if there are at least two linearly independent operators among their senior parts (relative to some mixed pattern of homogeneity), then this space does not have local unconditional structure. This fact generalizes the previously known result that such spaces are not isomorphic to a complemented subspace of $C(S)$
description: 22 pages
Rezidence a správní sídla v zemích České koruny ve 14.-17. století. Korunní země v dějinách českého státu III. Sborník příspěvků z mezinárodního kolokvia konaného ve dnech 29.-31. března 2006 v Clam-Gallasově paláci v Praze
Creators: name: Irgang, Winfried
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2009

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 58 Nr. 4 (2009)
Ultraviolet Survey of CO and H_2 in Diffuse Molecular Clouds: The Reflection of Two Photochemistry Regimes in Abundance Relationships
Creators: name: Sheffer, Y.
name: Rogers, M.
name: Federman, S. R.
name: Abel, N. P.
name: Gredel, R.
name: Lambert, D. L.
name: Shaw, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) We carried out a comprehensive far-ultraviolet (UV) survey of ^12CO and H_2 column densities along diffuse molecular Galactic sight lines in order to explore in detail the relationship between CO and H_2. We measured new CO abundances from HST spectra, new H_2 abundances from FUSE data, and new CH, CH^+, and CN abundances from the McDonald and European Southern Observatories. A plot of log N(CO) versus log N(H_2) shows that two power-law relationships are needed for a good fit of the entire sample, with a break located at log N(CO, cm^-2) = 14.1 and log N(H_2) = 20.4, corresponding to a change in production route for CO in higher-density gas. Similar logarithmic plots among all five diatomic molecules allow us to probe their relationships, revealing additional examples of dual slopes in the cases of CO versus CH (break at log N = 14.1, 13.0), CH^+ versus H_2 (13.1, 20.3), and CH^+ versus CO (13.2, 14.1). These breaks are all in excellent agreement with each other, confirming the break in the CO versus H_2 relationship, as well as the one-to-one correspondence between CH and H_2 abundances. Our new sight lines were selected according to detectable amounts of CO in their spectra and they provide information on both lower-density (< 100 cm^-3) and higher-density diffuse clouds. The CO versus H_2 correlation and its intrinsic width are shown to be empirically related to the changing total gas density among the sight lines of the sample. We employ both analytical and numerical chemical schemes in order to derive details of the molecular environments. In the low-density gas, where equilibrium-chemistry studies have failed to reproduce the abundance of CH^+, our numerical analysis shows that nonequilibrium chemistry must be employed for correctly predicting the abundances of both CH^+ and CO.
description: 40 pages in emulateapj style, to appear in the Astrophysical Journal
Jacob Katz, Tradition und Krise. Der Weg der jüdischen Gesellschaft in die Moderne
Creators: name: Dohrn, Verena
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2004

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 53 Nr. 1 (2004)