cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamic modeling and design evaluation of interactions of fish and a head-removal machine
Creators: name: Bussani, Franco Steven
Publisher: name: University of British Columbia
Year: 2009

description: Commercial salmon processing is a five-hundred million dollar industry in British Columbia. This research is part of the work undertaken at the Industrial Automation Laboratory of the University of British Columbia to address the need to increase the raw product recovery rate during the processing of salmon, in view of dwindling stocks and increasing production costs. The scope of this research is limited to the analysis of positioning the salmon for head removal on a conventional machine (Iron Butcher). A better understanding of the dynamic interactions in this stage of processing will lead to establishing design improvements that will increase the raw product recovery rate of the Iron Butcher. Finite element models are developed to simulate the static and dynamic interaction of a salmon with the Iron Butcher. The finite element models are verified by comparing experimental results to simulation results obtained from the models. Verification ensures the simulation results are accurate and also provides an estimate of the error in the finite element models. The finite element model is first used to analyze the fish—machine interaction during the conveying process. Simulations provide information on how to better configure the machine so that reliable conveying of fish in different situations is achieved. The finite element model is also used to analyze the operation of the Iron Butcher in its present configuration to determine the causes of positioning error, termed overfeed and underfeed. Once the mechanisms which cause these errors are identified, the model of the processing machine is modified so that the effectiveness of these modifications can be determined prior to the building of a prototype machine.
Learning Frequency Domain Approximation for Binary Neural Networks
Creators: name: Xu, Yixing
name: Han, Kai
name: Xu, Chang
name: Tang, Yehui
name: Xu, Chunjing
name: Wang, Yunhe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Binary neural networks (BNNs) represent original full-precision weights and activations into 1-bit with sign function. Since the gradient of the conventional sign function is almost zero everywhere which cannot be used for back-propagation, several attempts have been proposed to alleviate the optimization difficulty by using approximate gradient. However, those approximations corrupt the main direction of factual gradient. To this end, we propose to estimate the gradient of sign function in the Fourier frequency domain using the combination of sine functions for training BNNs, namely frequency domain approximation (FDA). The proposed approach does not affect the low-frequency information of the original sign function which occupies most of the overall energy, and high-frequency coefficients will be ignored to avoid the huge computational overhead. In addition, we embed a noise adaptation module into the training phase to compensate the approximation error. The experiments on several benchmark datasets and neural architectures illustrate that the binary network learned using our method achieves the state-of-the-art accuracy. Code will be available at \textit{https://gitee.com/mindspore/models/tree/master/research/cv/FDA-BNN}.
description: 12 pages
Anyonic Braiding in Optical Lattices
Creators: name: Zhang, Chuanwei
name: Scarola, V. W.
name: Tewari, Sumanta
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Topological quantum states of matter, both Abelian and non-Abelian, are characterized by excitations whose wavefunctions undergo non-trivial statistical transformations as one excitation is moved (braided) around another. Topological quantum computation proposes to use the topological protection and the braiding statistics of a non-Abelian topological state to perform quantum computation. The enormous technological prospect of topological quantum computation provides new motivation for experimentally observing a topological state. Here we explicitly work out a realistic experimental scheme to create and braid the Abelian topological excitations in the Kitaev model built on a tunable robust system, a cold atom optical lattice. We also demonstrate how to detect the key feature of these excitations, their braiding statistics. Observation of this statistics would directly establish the existence of anyons, quantum particles which are neither fermions nor bosons. In addition to establishing topological matter, the experimental scheme we develop here can also be adapted to a non-Abelian topological state, supported by the same Kitaev model but in a different parameter regime, to eventually build topologically protected quantum gates.
description: 22 pages, 5 figures, published version
Vector transition form factors of the $N K^*\toΘ^+ $ and $N \bar{K}^*\to Σ_{\bar{10}}^{*-}$ in the SU(3) chiral quark-soliton model
Creators: name: Ledwig, Tim
name: Kim, Hyun-Chul
name: Goeke, Klaus
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the vector transition form factors of the nucleon and vector meson K^* to the pentaquark baryon Theta^+ within the framework of the SU(3) chiral quark-soliton model. We take into account the rotational 1/N_c and linear $m_{\rm s}$ corrections, assuming isospin symmetry and employing the symmetry-conserving quantization. It turns out that the leading-order contributions to the form factors are almost cancelled by the rotational corrections. Because of this, the flavor SU(3) symmetry-breaking terms yield sizeable effects on the vector transition form factors. In particular, the main contribution to the electric-like transition form factor comes from the wave-function corrections, which is a consequence of the generalized Ademollo-Gatto theorem derived in the present work. We estimate with the help of the vector meson dominance the K^* vector and tensor coupling constants for the Theta^+: $g_{K^{*}NΘ}=0.74 - 0.87$ and $f_{K^{*}NΘ}=0.53 - 1.16$. We argue that the outcome of the present work is consistent with the null results of the CLAS experiments in the reactions gamma n -> K^- Theta^+ and gamma p ->bar{K}^0 Theta^+. The results of the present work are also consistent with the recent experiments at KEK. In addition, we present the results of the $Σ_{\bar{10}}\to N\bar{K}^*$ transition form factors and its $\bar{K}^*NΣ_{\bar{10}}$ coupling constants.
description: 26 pages, 10 figures
title: A Pragmatic Approach for Rapid, Non-Destructive Assessment of Defect Types in Laser Powder Bed Fusion Based on Melt Pool Monitoring Data
Creators: name: Engelhardt, Anna
name: Wegener, Thomas
name: Niendorf, Thomas
Publisher: name: Universität Kassel
Year: 2024
Subjects: subject: additive manufacturing
subject: selective laser melting
subject: process monitoring
subject: AlSi10Mg
subject: MPM
subject: 600
subject: Rapid Prototyping
subject: Selektives Laserschmelzen
subject: Prozessüberwachung
subject: Aluminiumlegierung

description: This work was supported by the project DigiWerk funded within the research program “future” of the University of Kassel.
A Systematic Evaluation of Transfer Learning and Pseudo-labeling with BERT-based Ranking Models
Creators: name: Mokrii, Iurii
name: Boytsov, Leonid
name: Braslavski, Pavel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Due to high annotation costs making the best use of existing human-created training data is an important research direction. We, therefore, carry out a systematic evaluation of transferability of BERT-based neural ranking models across five English datasets. Previous studies focused primarily on zero-shot and few-shot transfer from a large dataset to a dataset with a small number of queries. In contrast, each of our collections has a substantial number of queries, which enables a full-shot evaluation mode and improves reliability of our results. Furthermore, since source datasets licences often prohibit commercial use, we compare transfer learning to training on pseudo-labels generated by a BM25 scorer. We find that training on pseudo-labels -- possibly with subsequent fine-tuning using a modest number of annotated queries -- can produce a competitive or better model compared to transfer learning. Yet, it is necessary to improve the stability and/or effectiveness of the few-shot training, which, sometimes, can degrade performance of a pretrained model.
Computer aided design of developable surfaces
Creators: name: Konesky, Brian E.
Publisher: name: University of British Columbia
Year: 2009

description: The design of objects employing developable surfaces is of engineering importance because of the relative ease with which developable surfaces can be manufactured. The problem of designing developable surfaces is not new. Two space curves, defining the edges of the surface, are first created, then a set of rulings are constructed between the space curves under the constraint of developability. A problem with existing algorithms for designing developable surfaces is the tendency to introduce non developable portions of the surface; areas of regression. A more reliable solution to the problem of creating a developable surface is proposed. The key to the method is to define the developable surface in terms of a normal direc trix. The shape of the normal directrix defines the shape of the developable surface. Algorithms are defined to compute the shape of a normal directrix from a pair of space curves. A non-linear optimization technique was implemented to further refine the shape of the developable surface, but failed to yield satisfactory results. Other algorithms were also created to intersect adjacent developable surfaces and to generate the flat plate lay outs. The algorithms were implemented using the C++ programming language and the AutoCAD CAD package. Recommendations for further work are given. The design of objects employing developable surfaces is of engineering importance because of the relative ease with which developable surfaces can be manufactured. The problem of designing developable surfaces is not new. Two space curves, defining the edges of the surface, are first created, then a set of rulings are constructed between the space curves under the constraint of developability. A problem with existing algorithms for designing developable surfaces is the tendency to introduce non developable portions of the surface; areas of regression. A more reliable solution to the problem of creating a developable surface is proposed. The key to the method is to define the developable surface in terms of a normal directrix. The shape of the normal directrix defines the shape of the developable surface. Algorithms are defined to compute the shape of a normal directrix from a pair of space curves. A non-linear optimization technique was implemented to further refine the shape of the developable surface, but failed to yield satisfactory results. Other algorithms were also created to intersect adjacent developable surfaces and to generate the flat plate lay outs. The algorithms were implemented using the C++ programming language and the AutoCAD CAD package. Recommendations for further work are given.
Polynomial time algorithms in invariant theory for torus actions
Creators: name: Bürgisser, Peter
name: Doğan, M. Levent
name: Makam, Visu
name: Walter, Michael
name: Wigderson, Avi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Mathematical Physics (math-ph)
subject: Algebraic Geometry (math.AG)
subject: Representation Theory (math.RT)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: An action of a group on a vector space partitions the latter into a set of orbits. We consider three natural and useful algorithmic "isomorphism" or "classification" problems, namely, orbit equality, orbit closure intersection, and orbit closure containment. These capture and relate to a variety of problems within mathematics, physics and computer science, optimization and statistics. These orbit problems extend the more basic null cone problem, whose algorithmic complexity has seen significant progress in recent years. In this paper, we initiate a study of these problems by focusing on the actions of commutative groups (namely, tori). We explain how this setting is motivated from questions in algebraic complexity, and is still rich enough to capture interesting combinatorial algorithmic problems. While the structural theory of commutative actions is well understood, no general efficient algorithms were known for the aforementioned problems. Our main results are polynomial time algorithms for all three problems. We also show how to efficiently find separating invariants for orbits, and how to compute systems of generating rational invariants for these actions (in contrast, for polynomial invariants the latter is known to be hard). Our techniques are based on a combination of fundamental results in invariant theory, linear programming, and algorithmic lattice theory.
description: 27 pages
Magnonics vs. Ferronics
Creators: name: Bauer, Gerrit E. W.
name: Tang, Ping
name: Iguchi, Ryo
name: Uchida, Kenichi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Magnons are the elementary excitations of the magnetic order that carry spin, momentum, and energy. Here we compare the magnon with the ferron, i.e. the elementary excitation of the electric dipolar order that transports polarization and heat in ferroelectrics.
description: Submitted for publication in the Virtual Special Issue (VSI) on Magnonics of the Journal of Magnetism and Magnetic Materials, in honor of Prof. Servio Rezende's 80th birthday
Rapid and Unconditional Parametric Reset Protocol for Tunable Superconducting Qubits
Creators: name: Zhou, Yu
name: Zhang, Zhenxing
name: Yin, Zelong
name: Huai, Sainan
name: Gu, Xiu
name: Xu, Xiong
name: Allcock, Jonathan
name: Liu, Fuming
name: Xi, Guanglei
name: Yu, Qiaonian
name: Zhang, Hualiang
name: Zhang, Mengyu
name: Li, Hekang
name: Song, Xiaohui
name: Wang, Zhan
name: Zheng, Dongning
name: An, Shuoming
name: Zheng, Yarui
name: Zhang, Shengyu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Qubit initialization is a critical task in quantum computation and communication. Extensive efforts have been made to achieve this with high speed, efficiency and scalability. However, previous approaches have either been measurement-based and required fast feedback, suffered from crosstalk or required sophisticated calibration. Here, we report a fast and high-fidelity reset scheme, avoiding the issues above without any additional chip architecture. By modulating the flux through a transmon qubit, we realize a swap between the qubit and its readout resonator that suppresses the excited state population to 0.08% $\pm$ 0.08% within 34 ns (284 ns if photon depletion of the resonator is required). Furthermore, our approach (i) can achieve effective second excited state depletion, (ii) has negligible effects on neighbouring qubits, and (iii) offers a way to entangle the qubit with an itinerant single photon, useful in quantum communication applications.
description: 38 pages, 15 figures
Three combinatorial models for affine sl(n) crystals, with applications to cylindric plane partitions
Creators: name: Tingley, Peter
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Algebra (math.QA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We define three combinatorial models for \hat{sl(n)} crystals, parametrized by partitions, configurations of beads on an `abacus', and cylindric plane partitions, respectively. These are reducible, but we can identify an irreducible subcrystal corresponding to any dominant integral highest weight. Cylindric plane partitions actually parametrize a basis for the tensor product of an irreducible representation with the space spanned by all partitions. We use this to calculate the partition function for a system of random cylindric plane partitions. We also observe a form of rank level duality. Finally, we use an explicit bijection to relate our work to the Kyoto path model.
description: 29 pages, 14 Figures. v2: 5 new references. Minor corrections and clarifications. v3: Section 4.2 corrected
Flutter instability and Ziegler destabilization paradox for elastic rods subject to non-holonomic constraints
Creators: name: Cazzolli, Alessandro
name: Corso, Francesco Dal
name: Bigoni, Davide
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Two types of non-holonomic constraints (imposing a prescription on velocity) are analyzed, connected to an end of a (visco)elastic rod, straight in its undeformed configuration. The equations governing the nonlinear dynamics are obtained and then linearized near the trivial equilibrium configuration. The two constraints are shown to lead to the same equations governing the linearized dynamics of the Beck (or Pfluger) column in one case and of the Reut column in the other. Therefore, although the structural systems are fully conservative (when viscosity is set to zero), they exhibit flutter and divergence instability. In addition, the Ziegler's destabilization paradox is found when dissipation sources are introduced. It follows that these features are proven to be not only a consequence of 'unrealistic non-conservative loads' (as often stated in the literature), rather, the models proposed by Beck, Reut, and Ziegler can exactly describe the linearized dynamics of structures subject to non-holonomic constraints, which are made now fully accessible to experiments.
description: 10 pages, 4 figures
Neutrino-Dominated Accretion Models for Gamma-Ray Bursts: Effects of General Relativity and Neutrino Opacity
Creators: name: Gu, Wei-Min
name: Liu, Tong
name: Lu, Ju-Fu
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We first refine the fixed concept in the literature that the usage of the Newtonian potential in studies of black hole accretion is invalid and the general relativistic effect must be considered. As our main results, we then show that the energy released by neutrino annihilation in neutrino-dominated accretion flows is sufficient for gamma-ray bursts when the contribution from the optically thick region of the flow is included, and that in the optically thick region advection does not necessarily dominate over neutrino cooling because the advection factor is relevant to the geometrical depth rather than the optical depth of the flow.
description: 11 pages, 3 figures, accepted by ApJ Letters
Context-Responsive Labeling in Augmented Reality
Creators: name: Köppel, Thomas
name: Gröller, M. Eduard
name: Wu, Hsiang-Yun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Route planning and navigation are common tasks that often require additional information on points of interest. Augmented Reality (AR) enables mobile users to utilize text labels, in order to provide a composite view associated with additional information in a real-world environment. Nonetheless, displaying all labels for points of interest on a mobile device will lead to unwanted overlaps between information, and thus a context-responsive strategy to properly arrange labels is expected. The technique should remove overlaps, show the right level-of-detail, and maintain label coherence. This is necessary as the viewing angle in an AR system may change rapidly due to users' behaviors. Coherence plays an essential role in retaining user experience and knowledge, as well as avoiding motion sickness. In this paper, we develop an approach that systematically manages label visibility and levels-of-detail, as well as eliminates unexpected incoherent movement. We introduce three label management strategies, including (1) occlusion management, (2) level-of-detail management, and (3) coherence management by balancing the usage of the mobile phone screen. A greedy approach is developed for fast occlusion handling in AR. A level-of-detail scheme is adopted to arrange various types of labels. A 3D scene manipulation is then built to simultaneously suppress the incoherent behaviors induced by viewing angle changes. Finally, we present the feasibility and applicability of our approach through one synthetic and two real-world scenarios, followed by a qualitative user study.
Effects of Downscattering on the Continuum and Line Spectra in Powerful Wind Environment. Monte Carlo Simulations, Analytical Results and Data Analysis
Creators: name: Laurent, Philippe
name: Titarchuk, Lev
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In Paper by Titarchuk & Shrader the general formulation and results for photon reprocessing (downscattering) that included recoil and Comptonization effects due to divergence of the flow were presented. Here we show the Monte Carlo (MC) simulated continuum and line spectra. We also provide an analytical description of the simulated continuum spectra using the diffusion approximation. We have simulated the propagation of monochromatic and continuum photons in a bulk outflow from a compact object. Electron scattering of the photons within the expanding flow leads to a decrease of their energy which is of first order in V/c (where V is the outflow velocity). The downscattering effect of first order in V/c in the diverging flow is explained by semi-analytical calculations and confirmed by MC simulations. We conclude that redshifted lines and downscattering bumps are intrinsic properties of the powerful outflows for which Thomson optical depth is greater than one. We fitted our model line profiles to the observations using four free parameters, β=V/c, optical depth of the wind τ, the wind temperature kT_e and the original line photon energy E_0. We show how the primary spectrum emitted close to the black hole is modified by reprocessing in the warm wind. In the framework of the our wind model the fluorescent iron line K_alpha is formed in the partly ionized wind as a result of illumination by central source continuum photons. The demonstrated application of our outflow model to the XMM observations of MCG 6-30-15, and to the ASCA observations of GRO J1655-40, points out a potential powerful spectral diagnostic for probes of the outflow-central object connection in Galactic and extragalactic BH sources.
description: Accepted for publication in the Astrophysical Journal and it is scheduled for ApJ February 20, 2007, v 656, 2 issue
Η ποιμαντική προσφορά του Αγίου Όρους στην σύγχρονη εποχή
Creators: name: Αναγνώστης, Παναγιώτης Γεωργίου-Ευριπίδη
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Ποιμαντική
Προσφορά
Άγιο Όρος
Pastoral
Offer
Mount Athos

description: Σκοπός της διατριβής ήταν να ερευνηθεί η ποιμαντική προσφορά του Αγίου Όρους τους τελευταίους δύο αιώνες. Αρχικά, παρουσιάστηκε η ιστορική διαδρομή του Αγίου Όρους από την ίδρυσή του έως τις ημέρες μας, με ιδιαίτερη έμφαση στην συνεισφορά του στην επιβίωση του ελληνισμού στα χρόνια της τουρκοκρατίας. Στην συνέχεια, ερευνήσαμε την ποιμαντική προσφορά του Αγίου Όρους στην σύγχρονη εποχή, καταγράφοντας την πνευματική του προσφορά με τα μέσα που χρησιμοποιεί και μέσω των σημαντικότερων προσωπικοτήτων που έζησαν και το αναγέννησαν μετά από μια περίοδο παρακμής. Στην συνέχεια, ασχοληθήκαμε με τη μεταλαμπάδευση της πνευματικότητας με σύγχρονα μέσα όπως το διαδίκτυο, για να φτάσουμε στην φιλανθρωπική δράση και τις δωρεές σε ανθρώπους που βρίσκονται σε δυσχερή θέση. Ένα άλλο θέμα που ερευνήσαμε ήταν οι ποιμαντικού χαρακτήρα παρεμβάσεις της Ιεράς Κοινότητας, οι οποία εκφράζει την φωνή του πιστού λαού σε θέματα θεολογικά αλλά και της καθημερινότητας. Τέλος, παρουσιάσαμε με την προσφορά του Αγίου Όρους στην οικουμένη μέσω των αγιορείτικων μετοχίων και των αγιορειτών μοναχών.
description: This thesis attempts to investigate the pastoral offer of Mount Athos over the past two centuries. Firstly, the historic route of Mount Athos is presented from its foundation to nowadays, with special emphasis on its contribution to the survival of Hellenism during the Ottoman period. Then, the analyzation of the offer of Mount Athos focuses on the contemporary years recording its spiritual offering with the means it uses and through the most important personalities who lived then and reborn it after a period of decadence. In addition, this review mentions the spreading of spirituality with modern means, such as internet, and generally the donation to charity and people in need. Finally, the offer of Athos is reported under the light of Athos’ metochia through the universe and thanks to its monks.
Right-covariant differential calculus on ${\cal F}({\mathbb C}_q^{2|1})$
Creators: name: Celik, Salih
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B37, 17B60, 81R50, 81R60

description: We define a new ${\mathbb Z}_2$-graded quantum (2+1)-space and show that the extended ${\mathbb Z}_2$-graded algebra of polynomials on this ${\mathbb Z}_2$-graded quantum space, denoted by ${\cal F}({\mathbb C}_q^{2\vert1})$, is a ${\mathbb Z}_2$-graded Hopf algebra. We construct a right-covariant differential calculus on ${\cal F}({\mathbb C}_q^{2\vert1})$ and define a ${\mathbb Z}_2$-graded quantum Weyl algebra and mention a few algebraic properties of this algebra. Finally, we explicitly construct the dual ${\mathbb Z}_2$-graded Hopf algebra of ${\cal F}({\mathbb C}_q^{2\vert1})$.
description: 24 pages
Modeling Pulsar Wind Nebulae
Creators: name: Bucciantini, N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the last few years, new observations by CHANDRA and XMM have shown that Pulsar Wind Nebulae present a complex but similar inner feature, with the presence of axisymmetric rings and jets, which is generally referred as {\it jet-torus structure}. Due to the rapid growth in accuracy and robustness of numerical schemes for relativistic fluid-dynamics, it is now possible to model the flow and magnetic structure of the relativistic plasma responsible for the emission. Recent results have clarified how the jet and rings are formed, suggesting that the morphology is strongly related to the wind properties, so that, in principle, it is possible to infer the conditions in the unshocked wind from the nebular emission. I will review here the current status in the modeling of Pulsar Wind Nebulae, and, in particular, how numerical simulations have increased our understanding of the flow structure, observed emission, polarization and spectral properties. I will also point to possible future developments of the present models.
description: 22 pages, 7 figures, Proceedings of the 2006 COSPAR Meeting in Beijing, accepted for publication in AdSR
Σχολιασμένη μετάφραση αποσπάσματος από το έργο του Joël Pommerat Le Petit Chaperon Rouge
Creators: name: Ασπρίδου, Χρυσούλα Μάρκου-Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Σχολιασμένη μετάφραση
Joël Pommerat
Θέατρο
Annotated translation
Theatre

description: γλώσσα στην ελληνική αποσπάσματος του θεατρικού έργου του Joël Pommerat Le Petit Chaperon Rouge. Πρόκειται για παιδικό θεατρικό έργο και σύγχρονη μεταγραφή του κλασσικού παιδικού παραμυθιού. Αρχικά, γίνεται αναφορά στην συμβολή του Joël Pommerat στη μοντέρνα και σύγχρονη δραματουργία. Έπειτα, στο πρώτο μέρος της εργασίας παρατίθεται η μετάφραση των αποσπασμάτων σε αντιστοιχία με το πρωτότυπο κείμενο. Έπειτα αναφέρονται οι γλωσσικές και λεξιλογικές ιδιαιτερότητες του πρωτότυπου κειμένου. Τέλος, αναλύονται οι μεταφραστικές δυσκολίες που προέκυψαν κατά τη διάρκεια της μεταφραστικής διαδικασίας όπως και οι τεχνικές που επιλέχθηκαν για την επίλυσή τους.
description: The present thesis is an annotated translation from French to Greek of an extract from the theatrical play Le Petit Chaperon Rouge by Joël Pommerat. It is a children’s play and a contemporary adaptation of the classic well-known tale. Firstly, we mention the contribution of Joël Pommerat in the modern and contemporary dramaturgy. In the first part of the thesis the original text is presented opposite to its translation. Then the particularities of the vocabulary of the original are analyzed. The thesis concludes with the analysis of the translation problems and difficulties encountered during the translation process and how they were resolved.
Οι επιπτώσεις της κλιματικής αλλαγής στον τουρισμό στην περιοχή της Μεσογείου
Creators: name: Μπράκη, Ελένη Μιχαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: subject: Κλιματική αλλαγή
subject: Τουρισμός
subject: Μεσόγειος
subject: Climate Change
subject: Tourism
subject: FOS: Economics and business
subject: Mediterranean

description: Tourism represents almost 5% of the GDP and over 1.1 trillion USD in exports around the globe. As reported by World Tourism Organization (WTO), tourism employs 1 in 12 people worldwide and creates opportunities for decent jobs, particularly for women and youth. Although the economic costs of climate change in tourism remain difficult to quantify, most studies indicate that increasing temperature would have largely negative consequences in Mediterranean Basin. The aim of this study is to evaluate the impact of climate change in the Mediterranean countries. Monthly data of seven climate variables by regional climate models are used for the reference period 1971 to 2000, as well as the future period 2071-2100. Furthermore, two climate indexes are studied, Tourism Climatic Index (TCI) and User-based Beach Climate Index (BCI). According to the first results the summer touristic period will be extended while months such as July and August are projected to be less pleasant for tourism in Mediterranean areas.
description: Ο τουρισμός αντιπροσωπεύει σχεδόν το 5% του ΑΕΠ και πάνω από 1,1 τρισεκατομμύρια δολάρια σε εξαγωγές σε όλο τον κόσμο. Όπως αναφέρει ο Παγκόσμιος Οργανισμός Τουρισμού, η βιομηχανία του τουρισμού απασχολεί 1 στους 12 ανθρώπους παγκοσμίως και δημιουργεί ευκαιρίες για ευπρεπής δουλειές, ειδικά για γυναίκες και νέους. Παρόλο που το οικονομικό κόστος της κλιματικής αλλαγής στον τουρισμό είναι δύσκολο να μετρηθεί, πολλές μελέτες δείχνουν ότι η παγκόσμια αύξηση της θερμοκρασίας θα έχει πολλές αρνητικές συνέπειες για την περιοχή της Μεσογείου. Ο σκοπός αυτής της εργασίας είναι η αξιολόγηση της επίδρασης της κλιματικής αλλαγής στις χώρες της Μεσογείου. Χρησιμοποιήθηκαν μηνιαία δεδομένα επτά κλιματικών μεταβλητών από περιοχικά μοντέλα για την περίοδο 1971-2000, καθώς και για την μελλοντική περίοδο 2071-2100. Επιπλέον, μελετήθηκαν δύο κλιματικοί δείκτες, ο δείκτης κλιματικού τουρισμού (TCI) και ο δείκτης χρηστών παραλίας (BCI). Σύμφωνα με πρώτα αποτελέσματα, η καλοκαιρινή τουριστική περίοδος θα επεκταθεί στις μεταβατικές εποχές, καθώς μήνες όπως ο Ιούλιος δεν θα παρουσιάζουν ευχάριστες συνθήκες για τουρισμό σε πολλές περιοχές της Μεσογείου.
Analytical and numerical studies of heat and moisture transfer through porous insulation
Creators: name: Zheng, Bi-Feng
Publisher: name: University of British Columbia
Year: 2008

description: This work contains both analytical and numerical studies of heat and moisture transport through a porous insulation in the presence of condensation, with impermeable, adiabatic vertical boundaries, and with one horizontal boundary facing a warm humid ambient and the other facing a cold impermeable surface. The analytical model is developed for heat and water vapor transfer in flat-slab and round-pipe thermal insulations. The model is validated by comparing its predictions with available experimental data. The effective thermal conductivity of the insulation in the presence of condensation depends on seven design and operating variables. The effect of these variables is determined by a parametric study. For practical operating conditions, the effective thermal conductivity varies from about 1.5 to 15 times the dry-state value. The computed data are presented in the form of design curves which may be used to estimate the effective thermal conductivity for flat-slab and round-pipe insulation systems. The analysis in this work quantifies the process of energy and mass transport in a porous insulation. A rigorous and fundamental formulation of heat and mass transfer in the insulation system is presented. The problem is modeled as one-dimensional, transient, multiphase flow with variable properties. Four stages in the energy and moisture transport process are identified, and they are formulated by a system of transient intercoupled equations and several thermodynamic relations using a local volume averaging technique. The numerical results are compared with experimental data for five different operating conditions and for times up to 600 hours. The model predicts the temperature distribution, heat transfer rate, the total moisture gain successfully. The predicted liquid distributions agree well with measured data for a period of up to 70 hours. The interesting effects of pertinent parameters on the energy and moisture transfer in the porous insulation are investigated. The present study, which for the first time presents a full simulation of the problem considering the mobile condensate, can be applied to other classes of problems on heat and mass transfer with phase change through a porous medium.
Effects of Chirped Laser Pulses on Nonclassical Correlation and Entanglement of Photon Pairs from Single Atom
Creators: name: Ooi, C. H. Raymond
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the effects of arbitrary laser pulse excitations on quantum correlation, entanglement and the role of quantum noise. The transient quantities are computed exactly using a method that provides exact solutions of the Langevin field operators for photon pairs produced by a double Raman atom driven by laser pulses. Short pulses with appropriate chirping, delay and/or detuning can generate broadband photon pairs and yield results that provide insights on how to generate very large nonclassical correlation. We find that short pulses are not favorable for entanglement. The quantity was previously found to be phase-sensitive and this is used with the pulse area concept to explain the rapid variations of entanglement with pulse width and strength. Photon correlation and entanglement are favored by exclusively two different initial conditions. Analysis reinforces our understanding of the two nonclassical concepts.
Improved $K_{e3}$ radiative corrections sharpen the $K_{μ2}$--$K_{l3}$ discrepancy
Creators: name: Seng, Chien-Yeah
name: Galviz, Daniel
name: Gorchtein, Mikhail
name: Meißner, Ulf-G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The measurements of $V_{us}$ in leptonic $(K_{μ2})$ and semileptonic $(K_{l3})$ kaon decays exhibit a $3σ$ disagreement, which could originate either from physics beyond the Standard Model or some large unidentified Standard Model systematic effects. Clarifying this issue requires a careful examination of all existing Standard Model inputs. Making use of a newly-proposed computational framework and the most recent lattice QCD results, we perform a comprehensive re-analysis of the electroweak radiative corrections to the $K_{e3}$ decay rates that achieves an unprecedented level of precision of $10^{-4}$, which improves the current best results by almost an order of magnitude. No large systematic effects are found, which suggests that the electroweak radiative corrections should be removed from the ``list of culprits'' responsible for the $K_{μ2}$--$K_{l3}$ discrepancy.
description: Version accepted by JHEP
Nearly integrable SO(3)-structures on 5-dimensional Lie groups
Creators: name: Fino, Anna
name: Chiossi, Simon
Publisher: name: arXiv
Year: 2006
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A40 (primary), 53C10, 53B15, 53C35, 53C25 (secondary)

description: Recent work Bobienski-Nurowski on 5-dimensional Riemannian manifolds with an SO(3) structure prompts us to investigate which Lie groups admit such a geometry. The case in which the SO(3) structure admits a compatible connection with torsion is considered. This leads to a classification under special behaviour of the onnection, which enables to recover all known examples, plus others bearing torsion of pure type. Suggestive relations with special structures in other dimensions are highlighted, with attention to eight-dimensional SU(3) geometry.
description: 22 pages
Οι διαδικαστικές ενέργειες κατά την «τυπική» συζήτηση του άρθρου 237 ΚΠολΔ σύμφωνα με τον Ν. 4335/2015
Creators: name: Χατζηλεωνίδα, Ιωάννα Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Τακτική διαδικασία
«Τυπική» συζήτηση
Διαδικαστικές πράξεις
Ordinary Procedure
«Formal» discussion
Procedural actions

description: Αναμφίβολα, ο Ν. 4335/2015 επέφερε ουσιώδεις τροποποιήσεις στην Πρωτοβάθμια Τακτική Διαδικασία, αποβλέποντας σε επιτάχυνση της διαδικασίας απονομής δικαιοσύνης συγκριτικά με το προϊσχύσαν καθεστώς. Σημαντική καινοτομία του εν λόγω νόμου αποτελεί η αντικατάσταση της άλλοτε προφορικής Τακτικής διαδικασίας, με μια πιο ευέλικτη, απλή και χρονικά συντομότερη έγγραφη διαδικασία, κατ’ αρ. 237 και 238 ΚΠολΔ. Η συζήτηση κατά την Τακτική διαδικασία σε πρώτο βαθμό χαρακτηρίζεται πλέον «τυπική», διότι δύναται να πραγματοποιηθεί χωρίς παράσταση των διαδίκων, η οποία προβλέφθηκε κυρίως από σεβασμό στην Αρχή της Δημοσιότητας των Συνεδριάσεων, κατ’ αρ. 93 Σ., καθώς και για την παροχή προς τους διαδίκους δυνατότητας διεξαγωγής ορισμένων διαδικαστικών πράξεων, όπως ίσχυαν και στο παρελθόν, προσαρμοσμένες όμως στη νέα δικονομική πραγματικότητα, όπως αναλύονται εκτενώς στην παρούσα συγγραφή.
description: Undoubtedly, Law 4335/2015 brought substantial amendments to the Ordinary Procedure of First Instance Jurisdiction, with the aim of accelerating the process of administering justice in comparison with the previous system. An important innovation of this law is the replacement of the once oral Procedure, with a more flexible, simpler and in time shorter in terms of time written procedure, according to articles 237 and 238 of the Code of Civil Procedure. Court hearing during the Ordinary Process in the First Instance is now characterized as "formal", because it is possible to take place without the presence of the parties, which was provided mainly out of respect for the Principle of Publicity of court sittings, article 93 of Constitution, as well as to provide the parties with the opportunity to carry out certain procedural acts, as in the past, but adapted to the new procedural reality, in the way these acts are extensively analyzed in this paper.
Το προφίλ του αγιορειτικού πληθυσμού στα μέσα του 19ου αιώνα με βάση αδημοσίευτες απογραφές
Creators: name: Χιούτης, Κωνσταντίνος Θεόδωρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Άγιον Όρος
Πληθυσμός
Απογραφές
Mount Athos
Population
Censuses

description: Ο πληθυσμός του Αγίου Όρους υπήρξε μία από τις ελάχιστα μελετημένες πτυχές της αγιορειτικής ι-στορίας. Οι μέχρι σήμερα αποτυπώσεις του είναι λίγες στον αριθμό και χωρίς όγκο δεδομένων που να επιτρέπουν την εξαγωγή ασφαλών και μετρήσιμων συμπερασμάτων. Ο εντοπισμός στο Αρχείο της Ιεράς Κοινότητας Αγίου Όρους απογραφικών καταλόγων των Μονών, των ετών 1844 και 1846, μας παρέχει τη δυνατότητα να έχουμε μία άρτια εικόνα για τον πληθυσμό του Αγίου Όρους σε μία κομβική εποχή για την ιστορία του τόπου, με ακραία όρια του χρονικού φάσματος την επαναστατική περίοδο (1821-1830) και την προσέλευση του ρωσικού στοιχείου στον Άθω (δεκαετία 1870 κ.εξ.). Τα δεδομένα των τεκμηρί-ων είναι αναλυτικά ως προς την προσωπογραφία των Αγιορειτών, τον τόπο καταγωγής τους και την ηλι-κιακή πυραμίδα όλου του μοναχικού στοιχείου, που διαβιεί στη χερσόνησο στα μέσα του 19ου αιώνα. Η εργασία για πρώτη φορά, ασκώντας τις μεθόδους της ιστορικής δημογραφίας, αναλύει διεξοδικά τον αθωνικό πληθυσμό και διαγράφει το προφίλ του στη δεδομένη περίοδο.
description: The population of Mount Athos has been one of the least studied aspects of Mount Athos history. Until today, his population records are few in number and without the volume of data that allow the issuance of safe and measurable conclusions. The location in the Mount Athos Archive of the Mount Athos Census, 1844 and 1846, gives us the ability to have a right picture of the population of Mount Athos at a pivotal time in the history of the place, with extreme limits of the time period in the revolu-tionary period (1821-1830) and the arrival of the Russian element in Mount Athos (in the decade of 1870 and after). The data of the presumptions are detailed in terms of the portrait of the Mount Athos people, their place of origin and the age pyramid of the whole solitary element, which lived on the pen-insula in the middle of the 19th century. The project, for the first time, using the methods of historical demographics, analyzes in detail the Athonite population and configures its profile in the particular pe-riod.
Elicitation of causatives
Creators: name: Parker, Verdena
name: Escamilla, Ramón
name: Newbold, Lindsey
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-160512-09: Elicitation of causatives and interactions with animacy.
Spacetime duality between localization transitions and measurement-induced transitions
Creators: name: Lu, Tsung-Cheng
name: Grover, Tarun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Time evolution of quantum many-body systems typically leads to a state with maximal entanglement allowed by symmetries. Two distinct routes to impede entanglement growth are inducing localization via spatial disorder, or subjecting the system to non-unitary evolution, e.g., via projective measurements. Here we employ the idea of space-time rotation of a circuit to explore the relation between systems that fall into these two classes. In particular, by space-time rotating unitary Floquet circuits that display a localization transition, we construct non-unitary circuits that display a rich variety of entanglement scaling and phase transitions. One outcome of our approach is a non-unitary circuit for free fermions in 1d that exhibits an entanglement transition from logarithmic scaling to volume-law scaling. This transition is accompanied by a 'purification transition' analogous to that seen in hybrid projective-unitary circuits. We follow a similar strategy to construct a non-unitary 2d Clifford circuit that shows a transition from area to volume-law entanglement scaling. Similarly, we space-time rotate a 1d spin chain that hosts many-body localization to obtain a non-unitary circuit that exhibits an entanglement transition. Finally, we introduce an unconventional correlator and argue that if a unitary circuit hosts a many-body localization transition, then the correlator is expected to be singular in its non-unitary counterpart as well.
description: 9 pages, 7 figures; updated to the published version
A sharp stability criterion for the Vlasov-Maxwell system
Creators: name: Lin, Zhiwu
name: Strauss, Walter
Publisher: name: arXiv
Year: 2007
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider the linear stability problem for a 3D cylindrically symmetric equilibrium of the relativistic Vlasov-Maxwell system that describes a collisionless plasma. For an equilibrium whose distribution function decreases monotonically with the particle energy, we obtained a linear stability criterion in our previous paper. Here we prove that this criterion is sharp; that is, there would otherwise be an exponentially growing solution to the linearized system. Therefore for the class of symmetric Vlasov-Maxwell equilibria, we establish an energy principle for linear stability. We also treat the considerably simpler periodic 1.5D case. The new formulation introduced here is applicable as well to the nonrelativistic case, to other symmetries, and to general equilibria.
Random trimer tilings
Creators: name: Ghosh, Anandamohan
name: Dhar, Deepak
name: Jacobsen, Jesper Lykke
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Combinatorics (math.CO)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study tilings of the square lattice by linear trimers. For a cylinder of circumference m, we construct a conserved functional of the base of the tilings, and use this to block-diagonalize the transfer matrix. The number of blocks increases exponentially with m. The dimension of the ground-state block is shown to grow as (3 / 2^{1/3})^m. We numerically diagonalize this block for m <= 27, obtaining the estimate S = 0.158520 +- 0.000015 for the entropy per site in the thermodynamic limit. We present numerical evidence that the continuum limit of the model has conformal invariance. We measure several scaling dimensions, including those corresponding to defects of dimers and L-shaped trimers. The trimer tilings of a plane admits a two-dimensional height representation. Monte Carlo simulations of the height variables show that the height-height correlations grows logarithmically at large separation, and the orientation-orientation correlations decay as a power law.
description: 12 pages, 11 figures
Transcription of file 028_A (collection LA 256)
Creators: name: Parker, Verdena
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio files VP-160512-07 and VP-160512-08: Transcription of file 028_A (referred to here as 029_A) from LA 256 (a collection of recordings given to the Berkeley Language Center by Verdena), from 3:46 to 6:24 (VP-160512-07) and from 6:24 to 7:11 (VP-160512-08). The file was assigned a provisional identifier 029_A that was changed to 028_A in the final cataloging for the collection; file 028_A was subsequently assigned the identifier LA256.028A and associated with the bundle LA256.028 in the California Language Archive.