cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Προσομοίωση και βελτιστοποίηση συστήματος ηλιακής αντλίας μεταβλητής ταχύτητας σε εφαρμογή άρδευσης για διαφορετικές τεχνολογίες άρδευσης
title: Simulation and optimization of a variable speed solar pumping system in irrigation application for different irrigation technologies
Creators: name: Νικολουδης Σταυρος
Publisher: name: Technical University of Crete
Year: 2019

description: Στη παρούσα διπλωματική εργασία μελετάται και σχεδιάζεται ένα αυτόνομο σύστημα ηλιακής αντλίας σε μία εφαρμογή άρδευσης ελαιοκαλλιέργειας έκτασης 10 στρεμμάτων, στη περιοχή των Μοιρών, Ηρακλείου Κρήτης. Για την ηλεκτρική τροφοδότηση της αντλίας, χρησιμοποιούνται φωτοβολταϊκά, ρυθμιστές φόρτισης, συσσωρευτές και αντιστροφέας DC-AC. Γίνεται πλήρης διαστασιολόγηση του εξοπλισμού που απαρτίζει το αυτόνομο σύστημα, με βάση τις αρδευτικές απαιτήσεις της έκτασης, τα μετεωρολογικά δεδομένα της περιοχής και την ημερήσια καταναλισκόμενη ενέργεια του συστήματος αντλίας – κινητήρα.
Διεξάγεται οικονομική αξιολόγηση του αυτόνομου συστήματος, με βάση τον
δείκτη της ΚΠΑ, καθώς και του διασυνδεδεμένου συστήματος. Τα δύο σενάρια
συγκρίνονται μεταξύ τους και υπολογίζεται μία ελάχιστη απόσταση, από την οποία
προκύπτει η μία περίπτωση πιο συμφέρουσα από την άλλη.

description: In this diploma thesis, an autonomous solar pump system is being studied and designed in an application of olive-growing irrigation of 10 acres in the region of Mires, Heraklion, Crete. Pumps chargers, accumulators, and DC-AC inverter are used to power the pump. The full equipment of the stand-alone system is made, based on the irrigation requirements of the area, the meteorological data of the site and the daily consumption of the pump-motor system.An economic assessment of the stand-alone system is carried out, based on the NPV indicator and the interconnected system. The two scenarios are compared with each other and a minimum distance is estimated, from which one more advantageous case is derived.
Temporal Abstraction in Reinforcement Learning with the Successor Representation
Creators: name: Machado, Marlos C.
name: Barreto, Andre
name: Precup, Doina
name: Bowling, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Reasoning at multiple levels of temporal abstraction is one of the key attributes of intelligence. In reinforcement learning, this is often modeled through temporally extended courses of actions called options. Options allow agents to make predictions and to operate at different levels of abstraction within an environment. Nevertheless, approaches based on the options framework often start with the assumption that a reasonable set of options is known beforehand. When this is not the case, there are no definitive answers for which options one should consider. In this paper, we argue that the successor representation (SR), which encodes states based on the pattern of state visitation that follows them, can be seen as a natural substrate for the discovery and use of temporal abstractions. To support our claim, we take a big picture view of recent results, showing how the SR can be used to discover options that facilitate either temporally-extended exploration or planning. We cast these results as instantiations of a general framework for option discovery in which the agent's representation is used to identify useful options, which are then used to further improve its representation. This results in a virtuous, never-ending, cycle in which both the representation and the options are constantly refined based on each other. Beyond option discovery itself, we also discuss how the SR allows us to augment a set of options into a combinatorially large counterpart without additional learning. This is achieved through the combination of previously learned options. Our empirical evaluation focuses on options discovered for exploration and on the use of the SR to combine them. The results of our experiments shed light on important design decisions involved in the definition of options and demonstrate the synergy of different methods based on the SR, such as eigenoptions and the option keyboard.
description: This is the final, published JMLR version
Elusive anomalies
Creators: name: Bonora, L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Usually, in order to compute an anomaly (be it chiral or trace) with a perturbative method, the lowest significant order is sufficient. With the help of gauge or diffeomorphism invariance it uniquely identifies the anomaly. This note is a short review of the ambiguities that arise in the calculation of trace anomalies, and is meant, in particular, to signal cases in which the lowest perturbative order is not enough to unambiguously identify a trace anomaly. This may shed light on some recent contradictory results.
description: 12 pages, reference added
Subtracting glitches from gravitational-wave detector data during the third observing run
Creators: name: Davis, D.
name: Littenberg, T. B.
name: Romero-Shaw, I. M.
name: Millhouse, M.
name: McIver, J.
name: Di Renzo, F.
name: Ashton, G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Data from ground-based gravitational-wave detectors contains numerous short-duration instrumental artifacts, called "glitches." The high rate of these artifacts in turn results in a significant fraction of gravitational-wave signals from compact binary coalescences overlapping glitches. In LIGO-Virgo's third observing run, $\approx 20\%$ of signals required some form of mitigation due to glitches. This was the first observing run that glitch subtraction was included as a part of LIGO-Virgo-KAGRA data analysis methods for a large fraction of detected gravitational-wave events. This work describes the methods to identify glitches, the decision process for deciding if mitigation was necessary, and the two algorithms, BayesWave and gwsubtract, that were used to model and subtract glitches. Through case studies of two events, GW190424_180648 and GW200129_065458, we evaluate the effectiveness of the glitch subtraction, compare the statistical uncertainties in the relevant glitch models, and identify potential limitations in these glitch subtraction methods. We finally outline the lessons learned from this first-of-its-kind effort for future observing runs.
description: 23 pages, 6 figures
Shift Symmetries for p-Forms and Mixed Symmetry Fields on (A)dS
Creators: name: Hinterbichler, Kurt
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Massive fields on (anti) de Sitter space realize extended shift symmetries at particular values of their masses. We find these symmetries for all bosonic p-forms and mixed symmetry fields, in arbitrary spacetime dimension. These shift symmetric fields correspond to the missing longitudinal modes of mixed symmetry partially massless fields where the top row of the Young tableau is activated.
description: 27 pages, 3 figures. v2 several corrections, version appearing in JHEP
Absolutely Continuous Spectrum for random Schroedinger operators on the Fibonacci and similar tree-strips
Creators: name: Sadel, Christian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: Primary 82B44, Secondary 47B80, 60H25

description: We will consider cross products of finite graphs with a class of trees that have arbitrarily but finitely long line segments, such as the Fibonacci tree. Such cross products are called tree-strips. We prove that for small disorder random Schrödinger operators on such tree-strips have purely absolutely continuous spectrum in a certain set.
description: 30 pages, two figures; result improved, contains a certain class of tree-strips
Kuha2 - Open Source Metadata Server
Creators: name: Sissala, Toni
Publisher: name: Zenodo
Year: 2021

description: Kuha2 is metadata server developed to provide research metadata for harvesting using multiple protocols and metadata standards. It is composed of a collection of server applications and a client. Kuha2 is targeted at data archives who wish to make their metadata harvestable by interested parties. The development of Kuha2 was originally initiated by CESSDA SaW -project and has continued as an open source project lead by FSD. In its current state Kuha2 ingests DDI files and synchronizes the metadata records into a persistant storage. It then serves the records via repository handlers that currently support OAI-PMH and OSMH protocols. Over the past year, the versions supported for ingesting have been widened from DDI 2.5 to also include DDI versions 1.2.2 and 3.1. Presently the metadata standards harvestable via OAI-PMH are DDI 2.5. and OAI-DC. However, work has already been done to extend harvestable metadata standards to include EAD3. FSD has been using Kuha2 in production for over two years. Some archives within CESSDA have reportedly been using Kuha2 to integrate to CESSDA Data Catalogue. Kuha2 is designed in usability and simplicity in mind. Therefore the software installation and use does not require advanced technical skills. The software is developed as open source, has an open issue tracker in Bitbucket and documentation is openly available and hosted at Readthedocs. Kuha2 provides a technical solution to increase visibility and discoverability of organization's data collection. The possibility of providing standardized harvestable metadata promotes interorganizational partnership and advocates good documentation practices. Kuha2's open source development model encourages contributions from bug fixes to feature implementations, while good documentation and open communication platform decrease the barrier of engagement. This presentation will give an overview of Kuha2 software, its use cases and enhancements over the past year and near future.
SSHOC Considerations for the Vocabulary Platforms - Presentation of the MS08 results: Choice of Vocabulary publication platforms for SSHOC
Creators: name: Monachini, Monica
Publisher: name: Zenodo
Year: 2020

description: SSHOC Considerations for the Vocabulary Platforms - Presentation of the MS08 results: Choice of Vocabulary publication platforms for SSHOC - Monica Monachini from CLARIN - IT National Coordinator and SSHOC WP3
Quantification of collective behaviour via causality analysis
Creators: name: Lonhus, Kirill
name: Stys, Dalibor
name: Rychtarikova, Renata
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: Terms such as leader, mediator, and follower sound equal in the description of a pack of wolves, a street protest crowd, or a business team and have very similar meanings. This indicates the presence of some general law or structure that governs collective behaviour. To reveal this, we selected the most common parameter for most levels of the organisation -- motion. A causality analysis of distance correlations was performed to obtain follow-up networks that show who follows whom and how strongly. These networks characterise an observed system in general and work as an automation bridge between the biological experiment and the broad field of network analysis. The proposed method was tested on 3D image data from a controlled experiment on a 6-member school of aquarium fish of Tiger Barb. The network patterns can be easily ethologically interpreted and agreed with expected behaviour.
description: 18 pages, 4 figures
Powering the Future: An Inclusive National Clean Energy Standard with Negative Emissions Technologies
Creators: name: Subramanian, Narayan S.
Publisher: name: Columbia University
Year: 2020
Subjects: Climatic changes--Government policy
Environmental law
Greenhouse gas mitigation
State governments
Technological innovations--Environmental aspects

description: Federal climate change policy in the United States has fallen woefully short of what is necessary to achieve the temperature goals enshrined in the Paris Agreement. In the absence of meaningful federal policy, many states have pursued clean energy policies ranging from Renewable Portfolio Standards to Zero Emission Credits. The limits of these state policies have become apparent due to court challenges and recent decisions by the Federal Energy Regulatory Commission. This Note argues that a National Clean Energy Standard (NCES) is critical to harmonize state clean energy policies while also providing them with legal certainty. Recent studies have shown that even with rapid deployment of clean energy resources, Negative Emissions Technologies (NETs) will be necessary to keep global greenhouse gas emissions within safe levels. NETs represent a broad range of technologies many of which are yet to achieve technical viability, let alone commercial maturity. This Note puts forward an NCES framework that can effectively incorporate NETs while giving states the flexibility to choose between clean energy and NETs investments to achieve their NCES obligations.
Killing Tensors in Koutras-McIntosh Spacetimes
Creators: name: Kruglikov, Boris
name: Steneker, Wijnand
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The Koutras-McIntosh family of metrics include conformally flat pp-waves and the Wils metric. It appeared in a paper of 1996 by Koutras-McIntosh as an example of a pure radiation spacetime without scalar curvature invariants or infinitesimal symmetries. Here we demonstrate that these metrics have no "hidden symmetries", by which we mean Killing tensors of low degrees. For the particular case of Wils metrics we show the nonexistence of Killing tensors up to degree 6. The technique we use is the geometric theory of overdetermined PDEs and the Cartan prolongation-projection method. Application of those allows to prove the nonexistence of polynomial in momenta integrals for the equation of geodesics in a mathematical rigorous way. Using the same technique we can completely classify all lower degree Killing tensors and, in particular, prove that for generic pp-waves all Killing tensors of degree 3 and 4 are reducible.
Switching and propagation of magneto-plasmon-polaritons in magnetic slot waveguides and cavities
Creators: name: Nikolova, D.
name: Fisher, A. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The dispersion relations for surface plasmon-polaritons propagating in the Voigt geometry in a metal-insulator-metal waveguide with a magneto-optically active dielectric medium are derived. The symmetry between the upper and lower interfaces is broken by the introduction of the magnetic field; the balance between the field distributions on the two interfaces can be controlled by the applied field. This control is illustrated by finite-element method numerical simulations of the field distributions around a point dipole placed in the centre of the short waveguide; it is shown that both the total emission of radiation from the cavity and the distribution of the far-field radiation can be strongly modified by tuning the magnetisation of the waveguide. This raises the novel possibility of using magnetic fields to control light propagation in nanostructures.
description: 11 pages, 11 figures, submitted
Review-Based Domain Disentanglement without Duplicate Users or Contexts for Cross-Domain Recommendation
Creators: name: Choi, Yoonhyuk
name: Choi, Jiho
name: Ko, Taewook
name: Byun, Hyungho
name: Kim, Chong-Kwon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: A cross-domain recommendation has shown promising results in solving data-sparsity and cold-start problems. Despite such progress, existing methods focus on domain-shareable information (overlapped users or same contexts) for a knowledge transfer, and they fail to generalize well without such requirements. To deal with these problems, we suggest utilizing review texts that are general to most e-commerce systems. Our model (named SER) uses three text analysis modules, guided by a single domain discriminator for disentangled representation learning. Here, we suggest a novel optimization strategy that can enhance the quality of domain disentanglement, and also debilitates detrimental information of a source domain. Also, we extend the encoding network from a single to multiple domains, which has proven to be powerful for review-based recommender systems. Extensive experiments and ablation studies demonstrate that our method is efficient, robust, and scalable compared to the state-of-the-art single and cross-domain recommendation methods.
description: Proceedings of the 31st ACM International Conference on Information & Knowledge Management
Andrews-Curtis and Nielsen equivalence relations on some infinite groups
Creators: name: Myropolska, Aglaia
Publisher: name: arXiv
Year: 2013
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20E05, 20F05, 20F28

description: The Andrews-Curtis conjecture asserts that, for a free group $F_n$ of rank $n$ and a free basis $(x_1,...,x_n)$, any normally generating tuple $(y_1,...,y_n)$ is Andrews-Curtis equivalent to $(x_1,...,x_n)$. This equivalence corresponds to the actions of $\operatorname{Aut}F_n$ and of $F_n$ on normally generating $n$-tuples. The equivalence corresponding to the action of $\operatorname{Aut}F_n$ on generating $n$-tuples is called Nielsen equivalence. The conjecture for arbitrary finitely generated group has its own importance to analyse potential counter-examples to the original conjecture. We study the Andrews-Curtis and Nielsen equivalence in the class of finitely generated groups for which every maximal subgroup is normal, including nilpotent groups and Grigorchuk groups.
description: Accepted to Journal of Group Theory
title: The development of an interactive digital audiogram
title: Ανάπτυξη δυναμικού ψηφιακού ακοογράμματος
Creators: name: Γκολφιδης Αντωνιος-Ανδρεας
Publisher: name: Technical University of Crete
Year: 2019

description: Tα προβλήματα ακοής συναντώνται σε σημαντικό ποσοστό του πληθυσμού. Για το λόγο αυτό υπάρχει η ανάγκη εύκολης και έγκαιρης διάγνωσης των βαρηκοϊών. Στη διπλωματική αυτή περιγράφεται η ανάπτυξη ενός ψηφιακού ακοογράμματος το οποίο έχει τη μορφή εφαρμογής και επιτρέπει στον εξεταζόμενο να ελέγξει αν υπάρχει κάποιο πρόβλημα με την ακοή του με σκοπό την επίσκεψή του σε ιατρείο ΩΡΛ.
Στην εργασία παρουσιάζονται τα βασικά στοιχεία της ακοής, του ήχου και των βαρηκοϊών. Γίνεται περιγραφή της διαδικασίας του ακοογράμματος ΩΡΛ, μία σύνοψη της εφαρμογής και το κατά πόσο αυτή συμμορφώνεται με τα διεθνή Standards. Παρουσιάζεται επίσης ο τρόπος ισοστάθμισης διαφορετικών ακουστικών και η μετατροπή από dBFS σε dBSPL και dBHL. Μετά την ολοκλήρωση της εφαρμογής εκτελέστηκε πείραμα σε άτομα με σκοπό τη σύγκριση του ψηφιακού ακοογράμματος με το ακοόγραμμα ΩΡΛ. Βάσει των αποτελεσμάτων του πειράματος, εφαρμόστηκε στατιστική παλινδρόμηση με σκοπό την ελαχιστοποίηση της μέσης τετραγωνικής απόκλισης του ψηφιακού ακοογράμματος και του ακοογράμματος ΩΡΛ. Έγινε δοκιμή με 4 διαφορετικούς μετασχηματισμούς και παρουσιάζονται γραφικές παραστάσεις οι οποίες δείχνουν την βελτίωση που επιφέρουν τα μοντέλα πρόβλεψης.
Multi-Glimpse Network: A Robust and Efficient Classification Architecture based on Recurrent Downsampled Attention
Creators: name: Tan, Sia Huat
name: Dong, Runpei
name: Ma, Kaisheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Most feedforward convolutional neural networks spend roughly the same efforts for each pixel. Yet human visual recognition is an interaction between eye movements and spatial attention, which we will have several glimpses of an object in different regions. Inspired by this observation, we propose an end-to-end trainable Multi-Glimpse Network (MGNet) which aims to tackle the challenges of high computation and the lack of robustness based on recurrent downsampled attention mechanism. Specifically, MGNet sequentially selects task-relevant regions of an image to focus on and then adaptively combines all collected information for the final prediction. MGNet expresses strong resistance against adversarial attacks and common corruptions with less computation. Also, MGNet is inherently more interpretable as it explicitly informs us where it focuses during each iteration. Our experiments on ImageNet100 demonstrate the potential of recurrent downsampled attention mechanisms to improve a single feedforward manner. For example, MGNet improves 4.76% accuracy on average in common corruptions with only 36.9% computational cost. Moreover, while the baseline incurs an accuracy drop to 7.6%, MGNet manages to maintain 44.2% accuracy in the same PGD attack strength with ResNet-50 backbone. Our code is available at https://github.com/siahuat0727/MGNet.
description: Accepted at BMVC 2021
Solving the Tower of Hanoi with Random Moves
Creators: name: Alekseyev, Max A.
name: Berger, Toby
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We prove the exact formulae for the expected number of moves to solve several variants of the Tower of Hanoi puzzle with 3 pegs and n disks, when each move is chosen uniformly randomly from the set of all valid moves. We further present an alternative proof for one of the formulae that couples a theorem about expected commute times of random walks on graphs with the delta-to-wye transformation used in the analysis of three-phase AC systems for electrical power distribution.
Reduce the rank calculation of a high-dimensional sparse matrix based on network controllability theory
Creators: name: Zhao, Chen
name: Liu, Yuqing
name: Hu, Li
name: Yuan, Zhengzhong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Numerical computing of the rank of a matrix is a fundamental problem in scientific computation. The datasets generated by the internet often correspond to the analysis of high-dimensional sparse matrices. Notwithstanding recent advances in the promotion of traditional singular value decomposition (SVD), an efficient estimation algorithm for the rank of a high-dimensional sparse matrix is still lacking. Inspired by the controllability theory of complex networks, we converted the rank of a matrix into maximum matching computing. Then, we established a fast rank estimation algorithm by using the cavity method, a powerful approximate technique for computing the maximum matching, to estimate the rank of a sparse matrix. In the merit of the natural low complexity of the cavity method, we showed that the rank of a high-dimensional sparse matrix can be estimated in a much faster way than SVD with high accuracy. Our method offers an efficient pathway to quickly estimate the rank of the high-dimensional sparse matrix when the time cost of computing the rank by SVD is unacceptable.
description: 10 pages, 4 figures
Millisecond Pulsars in Dense Star Clusters: Evolution, Scaling Relations, and the Galactic-Center Gamma-ray Excess
Creators: name: Ye, Claire S.
name: Fragione, Giacomo
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The number of millisecond pulsars (MSPs) observed in Milky Way globular clusters has increased explosively in recent years, but the underlying population is still uncertain due to observational biases. We use state-of-the-art $N$-body simulations to study the evolution of MSP populations in dense star clusters. These cluster models span a wide range in initial conditions, including different initial masses, metallicities, and virial radii, which nearly cover the full range of properties exhibited by the population of globular clusters in the Milky Way. We demonstrate how different initial cluster properties affect the number of MSPs, for which we provide scaling relations as a function of cluster age and mass. As an application, we use our formulae to estimate the number of MSPs delivered to the Galactic Center from inspiralling globular clusters to probe the origin of the Galactic-Center gamma-ray excess detected by Fermi. We predict about $400$ MSPs in the Galactic Center from disrupted globular clusters, which can potentially explain most of the observed gamma-ray excess.
description: 14 pages, 15 figures. Accepted for publication in ApJ
Cherenkov radiation and scattering of external dispersive waves by two-color solitons
Creators: name: Oreshnikov, Ivan
name: Melchert, Oliver
name: Willms, Stephanie
name: Bose, Surajit
name: Babushkin, Ihar
name: Demircan, Ayhan
name: Morgner, Uwe
name: Yulin, Alexey
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: For waveguides with two separate regions of anomalous dispersion, it is possible to create a quasi-stable two-color solitary wave. In this paper we consider how those waves interact with dispersive radiation, both generation of Cherenkov radiation and scattering of incident dispersive waves. We derive the analytic resonance conditions and verify them through numeric experiments. We also report incident radiation driving the internal oscillations of the soliton during the scattering process in case of an intense incident radiation. We generalize the resonance conditions for the case of an oscillating soliton and demonstrate how one can use the scattering process to probe and excite an internal mode of two-color soliton molecules.
description: 9 pages, 7 figures
Trümmer-Erinnerung: Zierlichkeit, Materie und Spuren in der Pariser Kunst der Nachkriegszeit / La mémoire des ruines: ténuité, matière et traces dans l’art parisien de l’après-guerre
Creators: name: Laks, Déborah
Publisher: name: Deutsches Forum für Kunstgeschichte (DFK Paris): Jahresbericht / Rapport annuel
Year: 2016

description: -
description: Deutsches Forum für Kunstgeschichte (DFK Paris): Jahresbericht / Rapport annuel, Jahresbericht / Rapport annuel 2014/2015
Reading Giacometti. Konstituierungsprozesse einer Kunstgeschichte über zeitgenössische Diskurse bis zur postmodernen Kunstwissenschaft / Reading Giacometti: constitution d’une histoire de l’art dans les discours contemporains et mise en place de la science de l’art postmoderne
Creators: name: Wiesheu, Rosali
Publisher: name: Deutsches Forum für Kunstgeschichte (DFK Paris): Jahresbericht / Rapport annuel
Year: 2016

description: -
description: Deutsches Forum für Kunstgeschichte (DFK Paris): Jahresbericht / Rapport annuel, Jahresbericht / Rapport annuel 2014/2015
Dynamic response of a spin-1/2 Kondo singlet
Creators: name: Hemingway, Bryan
name: Herbert, Stephen
name: Melloch, Michael
name: Kogan, Andrei
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a study of spin 1/2 Kondo singlets in single electron transistors under a microwave frequency bias excitation. We compare time-averaged conductance $G$ to predicted universal response with respect to microwave frequency, oscillation amplitude and the Kondo temperature and find a non-adiabatic response when the microwave photon energy $hf$ is comparable to the Kondo temperature $k_B T_K$. We show that our measurements are qualitatively consistent with the predictions for the radiation-induced decoherence rate of the Kondo spin.
Automated Reporting to Inform Archival Data Remediation
Creators: name: Schlottmann, Kevin W.
name: Hodges, David W.
Publisher: name: Columbia University
Year: 2020
Subjects: Academic libraries
Library science
Archives--Data processing
Archival materials--Data processing

description: (Presentation given at the ArchivesSpace Annual Forum, 3 Aug. 2020.) As Columbia University Libraries have progressed from migration to operations in ArchivesSpace, we have developed tools and processes to monitor ongoing work, flag errors and problematic constructs, and report information to archivists and support staff in an automated fashion. The long tail of cleanup after a large-scale migration left a number of known, widespread issues across the corpus, such as missing scope and access notes, incorrectly encoded language information, etc. The regularization required by the migration also opened the opportunity to implement more consistent practices and incremental improvement across repositories in line with DACS principles. To provide continuous visibility and timely warnings, CUL developed a number of automated tools in Python that gather data from both the API and cached EAD files and report information at regular intervals: * Select resource data from entire corpus, reported nightly. * Subjects, agents, and accessions, reported weekly. * EAD checked against custom RelaxNG schema and XSLT rules (formerly Schematron assertions). Status of well-formedness and validity, along with any DACS compliance warnings, reported daily. * ILS catalog sync, reported nightly. The automated reports generate email summaries with links to complete reports in shared Google Sheets. This information helped inform numerous remediation efforts during COVID-19 while all staff are working remotely, such as origination review, access and scope note review, character counts for scope and bio notes to flag collections with limited description.
Learning suction graspability considering grasp quality and robot reachability for bin-picking
Creators: name: Jiang, Ping
name: Oaki, Junji
name: Ishihara, Yoshiyuki
name: Ooga, Junichiro
name: Han, Haifeng
name: Sugahara, Atsushi
name: Tokura, Seiji
name: Eto, Haruna
name: Komoda, Kazuma
name: Ogawa, Akihito
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Deep learning has been widely used for inferring robust grasps. Although human-labeled RGB-D datasets were initially used to learn grasp configurations, preparation of this kind of large dataset is expensive. To address this problem, images were generated by a physical simulator, and a physically inspired model (e.g., a contact model between a suction vacuum cup and object) was used as a grasp quality evaluation metric to annotate the synthesized images. However, this kind of contact model is complicated and requires parameter identification by experiments to ensure real world performance. In addition, previous studies have not considered manipulator reachability such as when a grasp configuration with high grasp quality is unable to reach the target due to collisions or the physical limitations of the robot. In this study, we propose an intuitive geometric analytic-based grasp quality evaluation metric. We further incorporate a reachability evaluation metric. We annotate the pixel-wise grasp quality and reachability by the proposed evaluation metric on synthesized images in a simulator to train an auto-encoder--decoder called suction graspability U-Net++ (SG-U-Net++). Experiment results show that our intuitive grasp quality evaluation metric is competitive with a physically-inspired metric. Learning the reachability helps to reduce motion planning computation time by removing obviously unreachable candidates. The system achieves an overall picking speed of 560 PPH (pieces per hour).
description: 18 pages, 2 tables, 7 figures
Wissenschaftlicher Beirat / Conseil scientifique
Creators: name: Redaktion, Die
Publisher: name: Deutsches Forum für Kunstgeschichte (DFK Paris): Jahresbericht / Rapport annuel
Year: 2016

description: -
description: Deutsches Forum für Kunstgeschichte (DFK Paris): Jahresbericht / Rapport annuel, Jahresbericht / Rapport annuel 2014/2015
The halo bias inside cosmic voids
Creators: name: Verza, Giovanni
name: Carbone, Carmelita
name: Renzi, Alessandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The bias of dark matter halos and galaxies is a crucial quantity in many cosmological analyses. In this work, using large cosmological simulations, we explore the halo mass function and halo bias within cosmic voids. For the first time to date, we show that they are scale-dependent along the void profile, and provide a predictive theoretical model of both the halo mass function and halo bias inside voids, recovering for the latter and 1% accuracy against simulated data. These findings may help shed light on the dynamics of halo formation within voids and improve the analysis of several void statistics from ongoing and upcoming galaxy surveys.
description: 11 pages, 4 figs, 1 table. Accepted for publication in ApJL
Stellar Initial Mass Function (IMF) Probed with Supernova Rates and Neutrino Background: Cosmic Average IMF Slope is $\simeq 2-3$ Similar to the Salpeter IMF
Creators: name: Aoyama, Shohei
name: Ouchi, Masami
name: Harikane, Yuichi
Publisher: name: arXiv
Year: 2021
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: The stellar initial mass function (IMF) is expressed by $ϕ(m) \propto m^{-α}$ with the slope $α$, and known as the poorly-constrained but very important function in studies of star and galaxy formation. There are no sensible observational constraints on the IMF slopes beyond Milky Way and nearby galaxies. Here we combine two sets of observational results, 1) cosmic densities of core-collapse supernova explosion (CCSNe) rates and 2) cosmic far ultraviolet radiation (and infrared re-radiation) densities, which are sensitive to massive ($\simeq 8-50 \,{\rm M}_\odot$) and moderately massive ($\simeq 2.5-7 \,{\rm M}_\odot$) stars, respectively, and constrain the IMF slope at $m>1\,{\rm M}_\odot$ with a freedom of redshift evolution. Although no redshift evolution is identified beyond the uncertainties, we find that the cosmic average IMF slope at $z=0$ is $α=1.8-3.2$ at the 95 % confidence level that is comparable with the Salpeter IMF, $α=2.35$, which marks the first constraint on the cosmic average IMF. We show a forecast for the Nancy Grace Roman Space Telescope supernova survey that will provide significantly strong constraints on the IMF slope with $δα\simeq 0.5$ over $z=0-2$. Moreover, as for an independent IMF probe instead of 1), we suggest to use diffuse supernovae neutrino background (DSNB), relic neutrinos from CCSNe. We expect that the Hyper-Kamiokande neutrino observations over 20 years will improve the constraints on the IMF slope and the redshift evolution significantly better than those obtained today, if the systematic uncertainties of DSNB production physics are reduced in the future numerical simulations.
description: 7 pages, 6 figures, published in ApJ
Anterior based longitudinal dorsal lingual flap in the repair of palatal fistula. A case report
Creators: name: Juan Gabriel Loreto Miranda M.D.
name: Mario David Garibay Rodríguez M.D.
name: Obed Horacio Grajeda Chávez M.D.
Publisher: name: Zenodo
Year: 2023

description: Background
We present the case of a 24-year-old female patient with sequelae of complete right unilateral cleft lip and palate, manifested as a Pittsburgh V type palatal fistula with an anteroposterior diameter of 25 millimeters and a transverse diameter of 12 millimeters, and a Pittsburgh VII type vestibular nasoalveolar fistula, 7 millimeters in diameter. A an anterior based  longitudinal dorsal lingual flap was used for repair. The technique used is presented and discussed.
 
Keywords: Cleft palate, nasoalveolar fistula.
Mind the gap: building a better research data management environment
Creators: name: Kulp, Christina
Publisher: name: Zenodo
Year: 2021

description: As libraries become more involved in providing access to acquired data resources, there is a need for librarians to be more engaged in data management discussions as early as possible. For many data collections, a management gap may exist between the technical services provided by IT professionals and the practical applications of data by researchers. When it comes to providing access or sharing of acquired data many challenges are often not exclusively technical or analytical but involve sound governance practices and a customer service mindset. Librarians are well equipped to contribute to many data management practices that bridge the gap between IT service providers and data users. At the Federal Reserve Bank of Kansas City, the Research Library is partnering with the High Performance Computing team to develop the Research Data Management Environment (RDME). This project is designed to support not only purchased data with legal obligations but also researcher curated public data sets they hope to share with colleagues. Ultimately, the goal of the RDME is not to create a better tool or technology; but a process that facilitates a dialogue between the data stewards (the librarians), IT support staff, and researchers so that acquired data collections are more visible, sustainable, and better managed.
Hierarchical entanglement shells of multichannel Kondo clouds
Creators: name: Shim, Jeongmin
name: Kim, Donghoon
name: Sim, H. -S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Impurities or boundaries often impose nontrivial boundary conditions on a gapless bulk, resulting in distinct boundary universality classes for a given bulk, phase transitions, and non-Fermi liquids in diverse systems. The underlying boundary states however remain largely unexplored. This is related with a fundamental issue how a Kondo cloud spatially forms to screen a magnetic impurity in a metal. Here we predict the quantum-coherent spatial and energy structure of multichannel Kondo clouds, representative boundary states involving competing non-Fermi liquids, by studying quantum entanglement between the impurity and the channels. Entanglement shells of distinct non-Fermi liquids coexist in the structure, depending on the channels. As temperature increases, the shells become suppressed one by one from the outside, and the remaining outermost shell determines the thermal phase of each channel. Detection of the entanglement shells is experimentally feasible. Our findings suggest a guide to studying other boundary states and boundary-bulk entanglement.
description: 21 pages, 4 figures for the manuscript; Supplementary information included
การทำนายความหวานผลเมล่อนแบบรวดเร็วโดยใช้เทคนิคการประมวลผลภาพร่วมกับแบบจำลองอัลกอริทึม
Creators: name: นพพร รัตนช่วง
Publisher: name: สถาบันวิจัยและพัฒนา มหาวิทยาลัยเทคโนโลยีราชมงคลธัญบุรี
Year: 2023
Subjects: Image processing
melon fruit
Python language
Random Forest (RF)
eXtreme Gradient Boosting (XGB)

description: Journal of Applied Research on Science and Technology (JARST), 22, 1, 117-127
title: Ανάλυση της λειτουργίας και της απόδοσης φωτοβολταϊκών συστημάτων ενταγμένων σε στέγες κτηρίων με τη χρήση Matlab
Creators: name: Περονικολής Μιχαήλ
Publisher: name: Technical University of Crete
Year: 2010

description: Μη διαθέσιμο
On the exceptional set for absolute continuity of Bernoulli convolutions
Creators: name: Shmerkin, Pablo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 28A78, 28A80, 37A45

description: We prove that the set of exceptional $λ\in (1/2,1)$ such that the associated Bernoulli convolution is singular has zero Hausdorff dimension, and likewise for biased Bernoulli convolutions, with the exceptional set independent of the bias. This improves previous results by Erdös, Kahane, Solomyak, Peres and Schlag, and Hochman. A theorem of this kind is also obtained for convolutions of homogeneous self-similar measures. The proofs are very short, and rely on old and new results on the dimensions of self-similar measures and their convolutions, and the decay of their Fourier transform.
description: To appear in GAFA. 13 pages
title: Μείωση αιχμής σε κορεσμένους υποσταθμούς συνδυασμός φωτοβολταϊκών και μπαταριών
Creators: name: Νούλης Κωνσταντίνος
Publisher: name: Technical University of Crete
Year: 2011

description: Μη διαθέσιμο
A direct measurement of galaxy major and minor merger rates and stellar mass accretion histories at $z < 3$ using galaxy pairs in the REFINE survey
Creators: name: Conselice, Christopher J.
name: Mundy, Carl J.
name: Ferreira, Leonardo
name: Duncan, Kenneth
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We measure the role of major and minor mergers in forming the stellar masses of galaxies over $0
description: AAS Journals submitted, 29 pages
Sensitivity to Ingroup and Outgroup Norms in the Association Between Commonality and Morality
Creators: name: Goldring, Megan
name: Heiphetz, Larisa A.
Publisher: name: Columbia University
Year: 2020
Subjects: subject: Health behavior
subject: Ethics
subject: Conduct of life
subject: Group identity
subject: Psychology
subject: FOS: Psychology

description: Emerging research suggests that people infer that common behaviors are moral and vice versa. The studies presented here investigated the role of group membership in inferences regarding commonality and morality. In Study 1, participants expected a target character to infer that behaviors that were common among their ingroup were particularly moral. However, the extent to which behaviors were common among the target character’s outgroup did not influence expectations regarding perceptions of morality. Study 2 reversed this test, finding that participants expected a target character to infer that behaviors considered moral among their ingroup were particularly common, regardless of how moral their outgroup perceived those behaviors to be. While Studies 1-2 relied on fictitious behaviors performed by novel groups, Studies 3-4 generalized these results to health behaviors performed by members of different racial groups. When answering from another person’s perspective (Study 3) and from their own perspective (Study 4), participants reported that the more common behaviors were among their ingroup, the more moral those behaviors were. This effect was significantly weaker for perceptions regarding outgroup norms, although outgroup norms did exert some effect in this real-world context. Taken together, these results highlight the complex integration of ingroup and outgroup norms in socio-moral cognition.
Critical lensing and kurtosis near a critical point in the QCD phase diagram in and out-of-equilibrium
Creators: name: Dore, Travis
name: Karthein, Jamie M.
name: Long, Isaac
name: Mroczek, Debora
name: Noronha-Hostler, Jacquelyn
name: Parotto, Paolo
name: Ratti, Claudia
name: Yamauchi, Yukari
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we study the lensing effect of the QCD critical point on hydrodynamic trajectories, and its consequences on the net-proton kurtosis $κ_4$. Including critical behavior by means of the BEST Collaboration equation of state (EoS), we first consider a scenario in equilibrium, then compare with hydrodynamic 0+1D simulations with Bjorken expansion, including both shear and bulk viscous terms. We find that, both in and out-of-equilibrium, the size and shape of the critical region directly affect if the signal will survive through the dynamical evolution.
How to guide anonymisation?
Creators: name: Valaranta, Annika
Publisher: name: Zenodo
Year: 2021

description: The presentation focuses on anonymisation guidance that FSD offers to its customers for both quantitative and qualitative research. Anonymity of the datasets makes data dissemination much easier for researchers since it removes the need to apply the GDPR. Anonymisation is also one of the safeguards mentioned in the GDPR. In practice, FSD also mainly archives anonymous research data with some exceptions and requires that researchers do the anonymization themselves. The challenge is that researchers often lack skills of anonymisation. This presentation discusses the guidance given in the FSD´s Data Management Guide and practices used in anonymisation training and workshops held for researchers. The focus is not in anonymisation techniques or statistical anonymisation methods but rather in anonymisation planning, decision making and practical tips for anonymisation process. The presentation may help other archives to enhance their anonymisation guidance and offers an opportunity to think together about anonymisation and anonymisation practices in more detail. The writer: Annika Valaranta is an information services specialist at the FSD. She has been processing both qualitative and quantitative datasets during her seven years career in the FSD. At present her major responsibilities are processing quantitative datasets and process development, international survey programme (ISSP, EVS) data, rewriting anonymisation guidance and giving training on anonymisation to researchers.
Ernst Baltrusch (Hrsg.), Caesar
Creators: name: Schmitz, Dietmar
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Ernst Baltrusch (Hrsg.), Caesar. Neue Wege der Forschung Darmstadt, Wissenschaftliche Buchgesellschaft 2007, 264 S. (ISBN 978-3- 534-20111-2)
description: Forum Classicum, Nr. 4 (2007): Forum Classicum
WER IST WER? DAS DEUTSCHE WHO’S WHO
Creators: name: Werner, Jürgen
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: WER IST WER? DAS DEUTSCHE WHO’S WHO. Begr. v. Walter Habel. XLVI2007/2008 Bundesrepublik Deutschland. Lübeck 2007: Schmidt/Römhildt. XVI, 1548 S. (ISBN 978-3-7950- 2044-6)
description: Forum Classicum, Nr. 4 (2007): Forum Classicum
Renormalization of proton-proton fusion in chiral effective field theory
Creators: name: Liu, Tai-Xing
name: Peng, Rui
name: Lyu, Songlin
name: Long, Bingwei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Renormalization of proton-proton fusion is studied in the framework of chiral effective field theory. Strict perturbative treatment of subleading corrections is applied in the analysis. Possible enhancement of two-nucleon contact axial current operators is the focus of the study. We find evidence that supports a previous proposal in the literature to promote one of the contact axial current operators.
description: Matches the published version