cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A region-based filter for video segmentation
Creators: name: Yurick, Micheal
Publisher: name: University of British Columbia
Year: 2011

description: This thesis addresses the problem of extracting object masks from video sequences. It presents an online, dynamic system for creating appearance masks of an arbitrary object of interest contained in a video sequence, while making minimal assumptions about the appearance and motion of the objects and scene being imaged. It examines a region-based approach, in contrast to more recently popular pixel-wise approaches to segmentation to illustrate the advantages in the reduction of the complexity of the labeling problem. The redundancy of information typically present in a pixel-wise approach is exploited by an initial oversegmentation of the current video frame. The oversegmentation procedure is based upon a modified version of the classic watershed segmentation algorithm. This oversegmentation produces a set of appearance/motion-consistent regions upon which a conditional random field is constructed. Observations at each region are collected based upon the colour statistics within a region and the motion statistics as determined by the optical flow over the region. An unparameterized model for both the object of interest and the remainder of the scene are constructed on a frame by frame basis. The conditional random field model is used in conjunction with a first order hidden markov model over the frames of the sequence. Mean field approximations for variational inference in this model produce a region-based filter framework which incorporates both spatial and temporal constraints. This framework is used to determine an appropriate labeling for each region in each frame. The reduction in the complexity of the field model produced by the regions (as opposed to pixels) results directly in a reduced cost for the labeling problem with minor effects on accuracy.
title: Canonical systems
Creators: name: Kaiser, Johannes
Publisher: name: TU Wien
Year: 2018
Subjects: subject: Canonical System
subject: Diagonal Hamiltonians
subject: Growth of entire Functions
subject: Proximate Order
subject: Slowly Varying Functions

description: Abstract In this thesis we want to establish properties of fundamental solutions of canonical systems. To this end, we give a thourough introduction to canonical systems and basic properties of their fundamental solution. Further, we analyze the growth of the fundamental solutions, and we regard growth functions, proximate orders and slowly varying functions in this context. Finally, we present two results, where we determine the order of canonical systems under certain requirements.
The clustering of LRGs in the DECaLS DR8 footprint: distance constraints from baryon acoustic oscillations using photometric redshifts
Creators: name: Sridhar, Srivatsan
name: Song, Yong-Seon
name: Ross, Ashley J.
name: Zhou, Rongpu
name: Newman, Jeffrey A.
name: Chuang, Chia-Hsun
name: Prada, Francisco
name: Blum, Robert
name: Gaztañaga, Enrique
name: Landriau, Martin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A photometric redshift sample of Luminous Red Galaxies (hereafter LRGs) obtained from The DECam Legacy Survey (DECaLS) is analysed to probe cosmic distances by exploiting the wedge approach of the two-point correlation function. Although the cosmological information is highly contaminated by the uncertainties existing in the photometric redshifts from the galaxy map, an angular diameter distance can be probed at the perpendicular configuration in which the measured correlation function is minimally contaminated. An ensemble of wedged correlation functions selected up to a given threshold based on having the least contamination was studied in the previous work (arXiv:1903.09651v2 [astro-ph.CO]) using simulations, and the extracted cosmological information was unbiased within this threshold. We apply the same methodology for analysing the LRG sample from DECaLS which will provide the optical imaging for targeting two-thirds of the DESI footprint and measure the angular diameter distances at $z=0.69$ and $z=0.87$ to be $D_{A}(0.697)=(1499 \pm 77\,\mathrm{Mpc})(r_{d}/r_{d,fid})$ and $D_{A}(0.874)=(1680 \pm 109\,\mathrm{Mpc})(r_{d}/r_{d,fid})$ with a fractional error of 5.14% and 6.48% respectively. We obtain a value of $H_{0}=67.59\pm5.52$ km/s/Mpc which supports the $H_0$ measured by all other BAO results and is consistent with $Λ$CDM model.
description: 18 pages, 8 figures, DESI publication board APPROVED, submitted to ApJ
Η συμβολή των ηπίων δεξιοτήτων στην αποτελεσματική οργάνωση και λειτουργία των Υπηρεσιών Αιμοδοσίας
Creators: name: Χουρίδη, Μαρία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Ήπιες δεξιότητες
Ιατρική μεταγγίσεων
Δεξιότητες υγειονομικής περίθαλψης
Soft skills
Transfusion practitioner
Health care skills

description: Για κάθε επαγγελματία Υγείας αποτελεί καθημερινά μία πρόκληση η διεκπεραίωση των ιατρικών του καθηκόντων λόγω της ποικιλομορφίας των απαιτήσεων και λόγω της φύσης της εργασίας. Μία πολυσύνθετη ιατρική πραγματικότητα αποτελεί και η Υπηρεσία της Αιμοδοσίας, η οποία είναι ένας μικρόκοσμος αποτελούμενος από μία σύνθεση διαφορετικών ειδικοτήτων γιατρών, νοσηλευτών, τεχνολόγων, επισκεπτριών υγείας, με επίκεντρο όλων τον ασθενή και τον αιμοδότη. Ο ρόλος του επαγγελματία Υγείας στις Υπηρεσίες Αιμοδοσίας είναι πολυδιάστατος. Το θέμα της εργασίας επιλέχθηκε για να εξηγήσει και να παρουσιάσει μία άλλη διάσταση στις δεξιότητες που πρέπει να κατέχει και να ασκεί ένας επαγγελματίας Υγείας στις Υπηρεσίες Αιμοδοσίας εκτός των ειδικών καθορισμένων τεχνικών δεξιοτήτων της Επιστήμης του. Σκοπός της παρούσας εργασίας είναι να προσεγγίσει, να παρουσιάσει και να αναδείξει την αξία των ηπίων δεξιοτήτων και της κριτικής σκέψης στον χώρο των Υπηρεσιών Αιμοδοσίας και στους επαγγελματίες Υγείας και την αξιοποίησή τους με στόχο την αποτελεσματικότερη οργάνωση. Είναι επιτακτική ανάγκη η απόκτηση και καλλιέργεια των ηπίων δεξιοτήτων και της κριτικής σκέψης του επαγγελματία Υγείας. Μόνο ο συνδυασμός των τεχνικών και των ηπίων δεξιοτήτων μπορεί να οδηγήσει τον επαγγελματία Υγείας στην αποτελεσματική, μεθοδική και οργανωτική ολοκλήρωση των καθηκόντων του με αντίκτυπο τη βέλτιστη παροχή υπηρεσιών στον ασθενή.
description: For every healthcare professional, performing their medical duties constitutes a daily challenge due to the diversity of the requirements and the nature of the work. Blood donation service is a multiplicate medical reality, a microcosm consisting of different specialties of doctors, nurses, technologists, health visitors, all of whom focus on the patient and the blood donor. The role of the healthcare professional in blood donation services is multidimensional. The subject of this paper will explain and present another dimension of the skills that a healthcare professional ought to possess and apply to blood donation services, apart from the specific defined technical skills of their science. This paper aims to approach, present and highlight. the value of soft skills and critical thinking in blood donation services and among healthcare professionals and their utilization, aiming at a more efficient organization. It is of primary importance that a healthcare professional acquire and cultivate soft skills and critical thinking. Only the combination of technical and soft skills can lead to the healthcare professional`s effective, efficient, properly organized execution of tasks, resulting in the best delivery of services to the patient.
description: Σε συνεργασία με: Παιδαγωγικό Δημοτικής Εκπαίδευσης (Πανεπιστήμιο Δυτικής Μακεδονίας)
Reconstructing the Scattering Matrix from Scanning Electron Diffraction Measurements Alone
Creators: name: Pelz, Philipp M
name: Brown, Hamish G
name: Ciston, Jim
name: Findlay, Scott D
name: Zhang, Yaqian
name: Scott, Mary
name: Ophus, Colin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Three-dimensional phase contrast imaging of multiply-scattering samples in X-ray and electron microscopy is extremely challenging, due to small numerical apertures, the unavailability of wavefront shaping optics, and the highly nonlinear inversion required from intensity-only measurements. In this work, we present a new algorithm using the scattering matrix formalism to solve the scattering from a non-crystalline medium from scanning diffraction measurements, and recover the illumination aberrations. Our method will enable 3D imaging and materials characterization at high resolution for a wide range of materials.
ShreyasDhavali-1RV16EC153.docx
Creators: name: Shreyas Dhavali
name: Biswagar, Prakash
Publisher: name: figshare
Year: 2020
Subjects: subject: 100599 Communications Technologies not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Real time events with big data and cloud technologies
Auxiliary SDEs for homogenization of quasilinear PDEs with periodic coefficients
Creators: name: Delarue, Francois
Publisher: name: arXiv
Year: 2004
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 35B27, 65C30 (Primary) 35K55 (Secondary)

description: We study the homogenization property of systems of quasi-linear PDEs of parabolic type with periodic coefficients, highly oscillating drift and highly oscillating nonlinear term. To this end, we propose a probabilistic approach based on the theory of forward-backward stochastic differential equations and introduce the new concept of ``auxiliary SDEs.''
description: Published by the Institute of Mathematical Statistics (http://www.imstat.org) in the Annals of Probability (http://www.imstat.org/aop/) at http://dx.doi.org/10.1214/009117904000000144
Αναλυτής ενέργειας για μονοφασικό σύστημα ισχύος Χαμηλής Τάσης
Creators: name: Λέισος, Λυκούργος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Αναλυτής Ενέργειας
Μικροελεγκτής
Χαμηλή Τάση
Network Analyzer
Microcontroller
Low Voltage

description: Αντικείμενο της παρούσας εργασίας είναι η ανάπτυξη ενός αναλυτή ενέργειας όπου θα μετρά και αναλύει τα ηλεκτρικά χαρακτηριστικά ενός μονοφασικού κυκλώματος ισχύος Χαμηλή Τάσης. Τα μεγέθη που θα μετρά είναι η τάση και η ένταση του ρεύματος και θα υπολογίζει την συχνότητα, την ηλεκτρική ισχύ (πραγματική, φαινόμενη και άεργος), τον συντελεστή ισχύος cosφ, και τέλος την ολική αρμονική παραμόρφωση της τάσης(THD). Ο κώδικας, για τις μετρήσεις και την ανάλυση των δεδομένων που παρουσιάζονται στο 3ο κεφάλαιο, αναπτύχθηκε σε γλώσσα Wiring στο περιβάλλον Arduino IDE εξ ολοκλήρου γραμμένη από την αρχή χωρίς την χρήση κάποιας βιβλιοθήκης από το διαδίκτυο. Αναπτύχθηκε σε μικροελεγκτή Arduino Mega 2560 που φέρει τον μικροεπεξεργαστή ATmega2560. Χρησιμοποιώντας το module Ethernet Shield της Arduino, δίνουμε την δυνατότητα στο Arduino να συνδεθεί στο Internet με IP και όλα τα δεδομένα να παρουσιάζονται μέσω ενός web browser.
description: The object of the present work is a development of a energy analyzer, who can measure and analyze electrical power of 1Ph Low Voltage power circuit. The measurements are voltage, current, frequency, electric power (Real, Apparent and Reactive), power factor cosφ and Total Harmonic Distortion (THD). The code for measurements and data was developed in Arduino Mega 2560 based in microcontroller ATmega2560. Using Ethernet Shield Module by Arduino, we give Arduino the capability to connect to the Internet with IP and all the data presented through a web browser.
title: Autonomous in hand object learning from rgb-d input with a mobile robot
Creators: name: Streicher, Dominik
Publisher: name: TU Wien
Year: 2018
Subjects: subject: Bildverarbeitung
subject: Robotik
subject: Computer vision
subject: Robotics

description: Diese Arbeit präsentiert einen methodischen Ansatz, um ein Objekt in einer menschlichen Hand zu modellieren. Ein großer Vorteil unserer Methode ist, dass die Modellierung in Echtzeit und ohne aufwändige manuelle Kalibrierung funktioniert. Ebenfalls kann das Objekt direkt in der Hand modelliert werden, was einen großen Vorteil in der Human Robot Interaction (HRI) bietet. Hier können Objekte direkt in der Hand des Benutzers erkannt werden, ohne dass dieser die Objekte irgendwo speziell platziert. Um das zu erreichen präsentieren wir eine Lösung zur effizienten Segmentierung der Hand und des Hintergrundes mittels einer RGB-D Kamera. Hierbei werden wir anhand des Gesichts die Hautfarbe extrahieren und anschließend damit die Hand im Bild entfernen. Danach wird das freistehende Objekt segmentiert. Anschließend verwenden wir die Vision for Robotics (V4R)-Bibliothek um die einzelnen Bilder zu einem vollständigen 3D-Modell hinzuzufügen. Am Ende unserer Arbeit werden wir anhand einiger Objekte die Effizienz demonstrieren und die Grenzen dieser Methode aufzeigen.
description: This thesis presents a full methodological approach to model objects, which are held in human hands. A major advantage of our method is, that it works in real time and does not need a complex manuel calibration. Another advantage is, that the object can be modeled inside of the users hand, which is a big advantage in HRI. That means objects can be learned without puting them in some designated place. To acheive this, we present a solution for efficient segmention of the user’s hand and the background, using an RGB-D camera. For this we will extract the skin color of the user’s face to detect the user’s hand and remove it in the image. Afterwards the object will be segmented. To combine the different views, we use V4R-Librabry to map the single images to a 3D-model. To show the efficiency of our method, we present at the end some models, which we created with our method and discuss the limits.
Irregular Magnetic Fields and the Far-Infrared Polarimetry of Dust Emission from Interstellar Clouds
Creators: name: Wiebe, D. S.
name: Watson, W. D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (abridged) The polarized thermal radiation at far infrared and submillimeter wavelengths from dust grains in interstellar clouds with irregular magnetic fields is simulated. We show that the polarization properties of quiescent clouds and of star-forming regions are consistent with Kolmogorov-like turbulent magnetic fields that are comparable in magnitude to the uniform component of the magnetic fields. If the beam size is much smaller than the correlation length $L_{\rm corr}$ of the fields, the calculated percentage polarization $p$ decreases to an asymptotic value when the number of correlation lengths $N_{\rm corr}$ through the cloud exceeds a few tens. For these values of $N_{\rm corr}$, the dispersion in the position angles $σ_α$ is still appreciable--decreasing to only about $20^{\circ}$. However, when the finite size of a telescope beam is taken into account, the asymptotic value of $p$ is reached for fewer correlation lengths (smaller $N_{\rm corr}$) due to averaging over the beam; $σ_α$ becames much smaller and consistent with the observational data. The smoothing of the polarization properties due to the combined effect of the thickness of the cloud and the finite size of the beam can be described by a single variable which we designate as the generalized number of correlation lengths. In addition, we study various factors that may contribute to the decrease in the linear polarization percentage with increasing intensity that is observed at submillimeter and far infrared wavelengths in many, though not in all, dark clouds (the "polarization hole" effect).
description: ApJ, in press
A domain specific language for encoding design rules
Creators: name: Morgan, Clinton Alan
Publisher: name: University of British Columbia
Year: 2011

description: Design rules express constraints on the behavior and structure of a program. These rules can help ensure that a program follows a set of established practices, and avoids certain classes of errors. Design rules often crosscut program structure and enforcing them is emerging as an important application domain for Aspect Oriented Programming. For many interesting design rules, current general purpose AOP languages lack the expressiveness to characterize them statically and enforce them at compile time. We have developed a domain specific language called Program Description Logic (PDL). PDL allows succinct declarative definitions of programmatic structures which correspond to design rule violations. PDL is based on a fully static and expressive pointcut language. PDL pointcuts allow characterizing a wide range of design rules without sacrificing static verification. We evaluate PDL by comparing it to FxCop, an industrial strength tool for checking design rules.
Golden Binary Gravitational-Wave Sources: Robust Probes of Strong-Field Gravity
Creators: name: Hughes, Scott A.
name: Menou, Kristen
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Space-born gravitational-wave interferometers such as {\it LISA} will detect the gravitational wave (GW) signal from the inspiral, plunge and ringdown phases of massive black hole binary mergers at cosmological distances. From the inspiral waves, we will be able to measure the masses of the binaries' members; from the ringdown waves, we will be able to measure the mass of the final merged remnant. A subset of detected events allow the identification of both the inspiral and the ringdown waveforms in a given source, and thus allow a measurement of the total mass-energy lost to GWs over the coalescence, $M_{\rm GW}$. We define ``golden'' binary mergers to be those with measurement errors likely to be small enough for a physically useful determination of $M_{\rm GW}$. A detailed sensitivity study, combined with simple black hole population models, suggests that a few golden binary mergers may be detected during a 3-year {\it LISA} mission lifetime. Any such mass deficit measurement would constitute a robust and valuable observational test of strong-field relativistic gravity. An extension of this concept to include spin measurements may allow a direct empirical test of the black hole area theorem.
description: 18 pages, 6 figures. Accepted for publication in ApJ
Collider searches of scalar singlets across lifetimes
Creators: name: Fuchs, Elina
name: Matsedonskyi, Oleksii
name: Savoray, Inbar
name: Schlaffer, Matthias
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Spin-0 singlets arise in well-motivated extensions of the Standard Model. Their lifetime determines the best search strategies at hadron and lepton colliders. To cover a large range of singlet decay lengths, we investigate bounds from Higgs decays into a pair of singlets, considering signatures of invisible decays, displaced and delayed jets, and coupling fits of untagged decays. We examine the generic scalar singlet and the relaxion, and derive a matching as well as qualitative differences between them. For each model, we discuss its natural parameter space and the searches probing it.
description: 24 pages + appendices and references, 10 figures
Pálinkafőzdék jövedelem- és kockázatelemzése
Creators: name: Lakner, Zoltán
name: Kasza, Gyula
name: Ács, Sándor
name: Lakner, Zoltán
name: Kasza, Gyula
name: Ács, Sándor
Publisher: name: Unknown
Year: 2014
Subjects: subject: Productivity Analysis
subject: Research Methods/ Statistical Methods
subject: beruházásgazdaságosság
subject: modell
subject: szimuláció
subject: szakértői becslés
subject: investment profitability
subject: model
subject: simulation
subject: expert estimations

description: A tanulmány szakértői becsléseken alapuló modellszámítások segítségével, az árköltség- fedezet-nyereség modell alkalmazásával, valamint beruházásgaz daságossá gi mutatók (NPV, IRR) felhasználásával, szimulációs elemzésekkel vizsgálja egy 30 ezer liter pálinka készítésére alkalmas pálinkafőző modellüzem létesítésének és működésének gazdaságosságát és jövedelmezőségét, továbbá a különböző tényezők hatását a jövedelmezőségi és beruházásgazdaságossági mutatók alakulására. Kutatásaink során bizonyítottuk, hogy egy liter 50 v/v%-os vegyes gyümölcspálinka készítésének költsége jövedéki adó nélkül átlagosan 2970 Ft, jövedéki adóval együtt 90%-os valószínűségi szinten 4230 és 5040 Ft közé esik. Jelen feltételek között a beruházás csak akkor gazdaságos, ha speciális termék előállítása valósul meg, ez azonban a kommersz pálinkagyártáshoz képest jelentős többletköltséggel jár. A beruházás felfutását követően az éves adózás előtti nyereség várható értéke közel 80 millió Ft. -------------------- This article documents the costs-benefit relations of producing the traditional Hungarian spirit “pálinka” on the basis of estimations of specialists working in the spirits sector. Important factors useful in planning a distillery are discussed; production costs and revenue are estimated for a model distillery with an output of 30 thousand litres of palinka. A break-even analysis was used to evaluate the profitability of the enterprise, applying a base set of input and output prices. Feasibility and risk of investment is determined on the basis of NPV and IRR indicators, applying simulation software. Research has shown that the expected total cost of mixed fruit palinka is ca. 2970 HUF (~10€) per one litre of 50 v/v% product, leaving aside the excise duty. In this case the economic efficiency of investment is relatively low. Production of specific products and following a differentiation strategy are necessary preconditions of economic success. The yearly profitability of investment before taxation is ca. 80 million HUF (~280 thousand €). According to model calculation the IRR of different business models is higher than 40%.
Sheared Solid Materials
Creators: name: Onuki, Akira
name: Furukawa, Akira
name: Minam, Akihiko
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a time-dependent Ginzburg-Landau model of nonlinear elasticity in solid materials. We assume that the elastic energy density is a periodic function of the shear and tetragonal strains owing to the underlying lattice structure. With this new ingredient, solving the equations yields formation of dislocation dipoles or slips. In plastic flow high-density dislocations emerge at large strains to accumulate and grow into shear bands where the strains are localized. In addition to the elastic displacement, we also introduce the local free volume {\it m}. For very small $m$ the defect structures are metastable and long-lived where the dislocations are pinned by the Peierls potential barrier. However, if the shear modulus decreases with increasing {\it m}, accumulation of {\it m} around dislocation cores eventually breaks the Peierls potential leading to slow relaxations in the stress and the free energy (aging). As another application of our scheme, we also study dislocation formation in two-phase alloys (coherency loss) under shear strains, where dislocations glide preferentially in the softer regions and are trapped at the interfaces.
description: 16pages, 11figures
Prediction of exotic magnetic states in the alkali metal quasi-one-dimensional iron selenide compound Na$_2$FeSe$_2$
Creators: name: Pandey, Bradraj
name: Lin, Ling-Fang
name: Soni, Rahul
name: Kaushal, Nitin
name: Herbrych, Jacek
name: Alvarez, Gonzalo
name: Dagotto, Elbio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magnetic and electronic phase diagram of a model for the quasi-one-dimensional alkali metal iron selenide compound Na$_2$FeSe$_2$ is presented. The novelty of this material is that the valence of iron is Fe$^{2+}$ contrary to most other iron-chain compounds with valence Fe$^{3+}$. Using first-principles techniques, we developed a three-orbital tight-binding model that reproduces the {\it ab initio} band structure near the Fermi level. Including Hubbard and Hund couplings and studying the model via the density matrix renormalization group and Lanczos methods, we constructed the ground state phase diagram. A robust region where the block state $\uparrow \uparrow \downarrow \downarrow \uparrow \uparrow \downarrow \downarrow$ is stabilized was unveiled. The analog state in iron ladders, employing 2$\times$2 ferromagnetic blocks, is by now well-established, but in chains a block magnetic order has not been observed yet in real materials. The phase diagram also contains a large region of canonical staggered spin order $\uparrow \downarrow \uparrow \downarrow \uparrow \downarrow \uparrow$ at very large Hubbard repulsion. At the block to staggered transition region, a novel phase is stabilized with a mixture of both states: an inhomogeneous orbital-selective charge density wave with the exotic spin configuration $\uparrow \uparrow \downarrow \uparrow \downarrow \downarrow \uparrow \downarrow$. Our predictions for Na$_2$FeSe$_2$ may guide crystal growers and neutron scattering experimentalists towards the realization of block states in one-dimensional iron-selenide chain materials.
description: 10 pages, 5 figures
Kézműves élelmiszerek vásárlásának fogyasztói magatartásvizsgálata a nők körében
Creators: name: Dogi, Ilona
name: Nagy, Lajos
name: Csipkés, Margit
name: Balogh, Péter
name: Dogi, Ilona
name: Nagy, Lajos
name: Csipkés, Margit
name: Balogh, Péter
Publisher: name: Unknown
Year: 2014
Subjects: subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business
subject: kézműves élelmiszer
subject: lokalitás
subject: piacirányítás
subject: kvantitatív elemzés
subject: női fogyasztók
subject: artisan foods
subject: locality
subject: market control
subject: qualitative analysis
subject: female consumers

description: A kutatás az észak-magyarországi hegyvidéken termeszthető, gyümölcsalapú kézműves élelmiszerek iránti igények felmérésére irányult a női fogyasztók körében. Kérdőíves felmérés segítségével vizsgáltuk többek között a vásárlói magatartást (vásárlási gyakoriságot, fontosnak tartott vásárlási szempontokat, legnépszerűbb beszerzési helyeket stb.), a fogyasztói elvárásokat, illetve hogy a vásárlói magatartást/ érdeklődést milyen mértékben befolyásolják olyan alapvető szociodemográfiai tényezők, mint a családi állapot, a gyermekek száma, az iskolai végzettség, az életkor, a lakóhely és a jövedelemszint. A 479 db kitöltött kérdőív elemzésekor a következő megállapításokra jutottunk. Jelentős igény merült fel a kézműves élelmiszerek eredetmegjelölésére vonatkozóan, ezért kulcsfontosságú egy védjegy kialakítása, amely biztonságérzetet kelt a vásárlókban a kézműves élelmiszer eredete és minősége iránt. Emellett a megfelelő termékszortiment kialakítása során figyelembe szükséges venni a fogyasztók által előnyben részesített terméktulajdonságokat, de leginkább az eladási árak meghatározása igényel átfogó tervezést, ugyanis tekintettel kell lenni a fogyasztók árérzékenységére. -------------------- The aim of the research was to survey the demand of female consumers for fruit-based artisan foods produced in the Northern Hungarian mountains. Questionnaire research was conducted in order to examine consumer attitude (purchase frequency, aspects considered to be important, most popular places of purchase, etc.), consumer demands and the extent to which basic socio-demographic factors, such as marital status, number of children, educational level, age, place of residence and income level affect consumer attitude/interest. The evaluation of the 479 filled out questionnaire led to the following conclusion. There is a significant need for indicating the origin of artisan foods. For this reason, a trademark would be of key importance, thereby triggering a sense of safety in customers concerning the origin and quality of artisan foods. In addition, the development of a proper product assortment should also consider consumers’ preferred product characteristics. Setting selling prices needs the most comprehensive planning, as consumers’ price sensitivity has to be taken into consideration.
The History of Neutrino Oscillations
Creators: name: Bilenky, S. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The early history of neutrino masses, mixing and oscillations is briefly reviewed.
description: A report at the ``Nobel Symposium on Neutrino physics'', Haga Slott, Enkoping, Sweden, August 19-24, 2004
Synthesis, Characterization, and Magnetic Properties of gamma-NaxCoO2 (0.70 < x <0.84)
Creators: name: Sakurai, H.
name: Takenouchi, S.
name: Tsujii, N.
name: Takayama-Muromachi, E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Powder Na$_{x}$CoO$_{2}$ ($0.70\leq x\leq 0.84$) samples were synthesized and characterized carefully by X-ray diffraction analysis, inductive-coupled plasma atomic emission spectroscopy, and redox titration. It was proved that $γ$-Na$_{x}$CoO$_{2}$ is formed only in the narrow range of $0.70\leq x\leq 0.78$. Nevertheless, the magnetic properties depend strongly on $x$. We found, for the first time, two characteristic features in the magnetic susceptibility of Na$_{0.78}$CoO$_{2}$, a sharp peak at $T_{p}=16$ K and an anomaly at $T_{k}=9$ K, as well as the transition at $T_{c}=22$ K and the broad maximum at $T_{m}=50$ K which had already been reported. A type of weak ferromagnetic transition seems to occur at $T_{k}$. The transition at $T_{c}$, which is believed to be caused by spin density wave formation, was observed clearly for $x\geq 0.74$ with constant $T_{c}$ and $T_{p}$ independent of $x$. On the other hand, ferromagnetic moment varies systematically depending on $x$. These facts suggest the occurrence of a phase separation at the microscopic level, such as the separation into Na-rich and Na-poor domains due to the segregation of Na ions. The magnetic phase diagram and transition mechanism proposed previously should be reconsidered.
description: 4 pages (2 figures included) and 2 extra figures (gif), to be published in J. Phys. Soc. Jpn. 73 (8) with possible minor revisions
The design and implementation of a scheduler and route planner for wheelchair users
Creators: name: Yang, Suling
Publisher: name: University of British Columbia
Year: 2011

description: Currently, Global Positioning Systems and other route-finding systems work well for wheelchair users outdoors. Indoor information is usually not provided. However, it is more important for wheelchair users to know the indoor maps of routes accessible to them. Where the closest elevator is, which door is accessible to them, and how long it takes to get to a destination are major route-finding problems for wheelchair users. Nevertheless, there is no existing system that shows up-to-date and detailed information on route accessibility. A system that works for the independent user would provide more accurate help for wheelchair users. For example, a strong young man in a wheelchair will have less difficulty getting through moderate ramps and rough roads than the elderly who tend to prefer smooth routes. Therefore, we are motivated to create a system that works according to the client's ability, so that it can figure out which path is best for the client under certain constraints. There are several existing systems that allow the user to easily control their wheelchairs. Some of these systems use automatic or semi-automatic robotic wheelchairs, but they are limited to very small local area movement. Such systems focus on hardware components of an auto-wheelchair. Our system, which provides help in pathfinding, can cooperate with these hardware-equipped wheelchairs. The success of related work on daily activity reminder systems has motivated us to build a simple scheduler that works in conjunction with the route planner. As well as designing and creating the new system, we have analyzed and implemented a new efficient pathfinding algorithm, which is the major contribution of this thesis. The algorithm deploys the hierarchical structure of real-life maps. Assuming that the distance within an abstract high-level node is significantly shorter than along high-level edges, the algorithm can prune away irrelevant paths. Runtime analysis and experimental results show that this algorithm is efficient in numerous scenarios.
The frequency of extreme X-ray variability of radio-quiet quasars
Creators: name: Timlin, John D.
name: Brandt, W. Niel
name: Zhu, Shifu
name: Liu, Hezhen
name: Luo, Bin
name: Ni, Qingling
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We analyze 1598 serendipitous Chandra X-ray observations of 462 radio-quiet quasars to constrain the frequency of extreme amplitude X-ray variability that is intrinsic to the quasar corona and innermost accretion flow. The quasars in this investigation are all spectroscopically confirmed, optically bright ($m_i \leq$ 20.2), and contain no identifiable broad absorption lines in their optical/ultraviolet spectra. This sample includes quasars spanning $z \approx$ 0.1 - 4 and probes X-ray variability on timescales of up to $\approx$ 12 rest-frame years. Variability amplitudes are computed between every epoch of observation for each quasar and are analyzed as a function of timescale and luminosity. The tail-heavy distributions of variability amplitudes at all timescales indicate that extreme X-ray variations are driven by an additional physical mechanism and not just typical random fluctuations of the coronal emission. Similarly, extreme X-ray variations of low-luminosity quasars seem to be driven by an additional physical mechanism, whereas high-luminosity quasars seem more consistent with random fluctuations. The amplitude at which an X-ray variability event can be considered extreme is quantified for different timescales and luminosities. Extreme X-ray variations occur more frequently at long timescales ( $Δt \gtrsim$ 300 days) than at shorter timescales, and in low-luminosity quasars compared to high-luminosity quasars over a similar timescale. A binomial analysis indicates that extreme intrinsic X-ray variations are rare, with a maximum occurrence rate of <2.4% of observations. Finally, we present X-ray variability and basic optical emission-line properties of three archival quasars that have been newly discovered to exhibit extreme X-ray variability.
description: 19 pages, 11 figures
A stochastic log-Laplace equation
Creators: name: Xiong, Jie
Publisher: name: arXiv
Year: 2004
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G57, 60H15 (Primary) 60J80. (Secondary)

description: We study a nonlinear stochastic partial differential equation whose solution is the conditional log-Laplace functional of a superprocess in a random environment. We establish its existence and uniqueness by smoothing out the nonlinear term and making use of the particle system representation developed by Kurtz and Xiong [Stochastic Process. Appl. 83 (1999) 103-126]. We also derive the Wong-Zakai type approximation for this equation. As an application, we give a direct proof of the moment formulas of Skoulakis and Adler [Ann. Appl. Probab. 11 (2001) 488-543].
description: Published by the Institute of Mathematical Statistics (http://www.imstat.org) in the Annals of Probability (http://www.imstat.org/aop/) at http://dx.doi.org/10.1214/009117904000000540
Elvárások, realitások, lehetőségek – A magyar agrárgazdaság tíz éve az Európai Unióban
Creators: name: Vajda, Laszlo
name: Vajda, Laszlo
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Industrial Organization
subject: International Relations/Trade
subject: EU-csatlakozás
subject: kihívás
subject: Közös Agrárpolitika
subject: alkalmazkodás
subject: nemzeti mozgástér
subject: EU accession
subject: challenge
subject: Common Agricultural Policy
subject: adaptation
subject: national margin

description: A 2004. május 1-jei EU-belépést megelőzően számos tanulmány, cikk, ismertető füzet készült és elemezte a csatlakozás várható agrárgazdasági hatásait. A belépést követően már kevesebb, de jó néhány tartalmas tanulmány tekintett vissza az elmúlt időszakra és adott értékes elemzéseket. Jelen tanulmány megkísérli egyben összefoglalni az elvárásokat, a magyar ag-rárgazdaság 10 év alatt megtett fejlődését és a jövőben előttünk álló lehetőségeket. A szerző, aki maga is aktív részese volt az eseményeknek, úgy látja, hogy sok nehézség dacára a magyar agrárgazdaság sikeresen küzdött meg a csatlakozás jelentette kihí-vással, egyenlegében élni tudott a lehetőségekkel. A belépéskor a figyelem a Közös Agrárpolitika követelményeinek teljesítésére összpontosult. Mára mind az agrárpo-litika, mind a gazdálkodók alkalmazkodtak a Közös Agrárpolitika adta feltételrend-szerhez, élnek az e keretek között meglévő nemzeti mozgástérrel. Mindez jó alapot teremt a következő 10 esztendő agrárgazdasági és vidékfejlesztésére. ------------------ Before Hungary’s accession to the European Union on 1 May 2004, a great number of studies, articles and brochures analysed the possible impacts of accession on the Hungarian agri-food sector. After the accession the number of publications on the ef-fects of accession was relatively modest, although they contained valuable information. The present study attempts to overview the expectations before membership, the ten years road of the Hungarian agricultural economy and the future prospects. The author – himself an active participant of the process – considers that despite many difficulties the Hungarian agri-food sector managed successfully the challenges of the accession; on balance it could valorise the opportunities offered. During accession efforts concen-trated on the fulfilment of the requirements stemming from the Common Agricultural Policy (CAP). By now both the government and the producers could adapt to the framework represented by the CAP and found their own way among the options of-fered, thus creating a solid basis for the next ten years of development of agriculture and of rural areas.
Constraining $Ω_M$ and Dark Energy with Gamma-Ray Bursts
Creators: name: Dai, Z. G.
name: Liang, E. W.
name: Xu, D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An $E_{γ,{\rm jet}}\propto {E'_p}^{1.5}$ relationship with a small scatter for current $γ$-ray burst (GRB) data was recently reported, where $E_{γ,{\rm jet}}$ is the beaming-corrected $γ$-ray energy and $E'_p$ is the $νF_ν$ peak energy in the local observer frame. By considering this relationship for a sample of 12 GRBs with known redshift, peak energy, and break time of afterglow light curves, we constrain the mass density of the universe and the nature of dark energy. We find that the mass density $Ω_M=0.35\pm^{0.15}_{0.15}$ (at the $1σ$ confident level) for a flat universe with a cosmological constant, and the $w$ parameter of an assumed static dark-energy equation of state $w=-0.84\pm^{0.57}_{0.83}$ ($1σ$). Our results are consistent with those from type Ia supernovae. A larger sample established by the upcoming {\em Swift} satellite is expected to provide further constraints.
description: 8 pages including 4 figures, to appear in ApJ Letters, typos corrected
Impulsive wave excitation by rapidly changing granules
Creators: name: Kwak, Hannah
name: Chae, Jongchul
name: Madjarska, Maria S.
name: Cho, Kyuhyoun
name: Song, Donguk
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It is not yet fully understood how magnetohydrodynamic waves in the interior and atmosphere of the Sun are excited. Traditionally, turbulent convection in the interior is considered to be the source of wave excitation in the quiet Sun. Over the last few decades, acoustic events observed in the intergranular lanes in the photosphere have emerged as a strong candidate for a wave excitation source. Here we report our observations of wave excitation by a new type of event: rapidly changing granules. Our observations were carried out with the Fast Imaging Solar Spectrograph in the H$α$ and Ca II 8542 $\unicode{xC5}$ lines and the TiO 7057 $\unicode{xC5}$ broadband filter imager of the 1.6 m Goode Solar Telescope at the Big Bear Solar Observatory. We identify granules in the internetwork region that undergo rapid dynamic changes such as collapse (event 1), fragmentation (event 2), or submergence (event 3). In the photospheric images, these granules become significantly darker than neighboring granules. Following the granules' rapid changes, transient oscillations are detected in the photospheric and chromospheric layers. In the case of event 1, the dominant period of the oscillations is close to 4.2 min in the photosphere and 3.8 min in the chromosphere. Moreover, in the Ca II$-$0.5 $\unicode{xC5}$ raster image, we observe repetitive brightenings in the location of the rapidly changing granules that are considered the manifestation of shock waves. Based on our results, we suggest that dynamic changes of granules can generate upward-propagating acoustic waves in the quiet Sun that ultimately develop into shocks.
description: 11 pages, 13 figures, Accepted for publication in A&A
Parity and the Spin-Statistics Connection
Creators: name: Morgan, J. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Physics Education (physics.ed-ph)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The spin-statistics connection is obtained in a simple and elementary way for general causal fields by using the parity operation to exchange spatial coordinates in the scalar product of a locally commuting field operator, evaluated at position x, with the same field operator evaluated at -x, at equal times.
description: 6 pages
A gazdaságszerkezet változása 2000 és 2013 között
Creators: name: Valkó, Gábor
name: Valkó, Gábor
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Research Methods/ Statistical Methods
subject: mezőgazdaság
subject: Általános mezőgazdasági összeírás
subject: Gazdaságszerkezeti összeírás
subject: gazdaságszerkezet
subject: agriculture
subject: Agricultural Census
subject: Farm Structure Survey
subject: farm structure

description: A magyar mezőgazdaság szerkezetét áttekintve megállapítható, hogy az egyéni gazdaságok száma meredeken csökkent 2000 és 2013 között, miközben a gazdasági szervezetek száma nem változott számottevően. A csökkenés elsősorban a kis, saját fogyasztásra termelő gazdaságok számában következett be. Ezzel összefüggésben a használt mezőgazdasági terület tekintetében az egyéni gazdaságoknál koncentráció figyelhető meg, a gazdasági szervezeteknél pedig a koncentráció kisebb csökkenése tapasztalható. A sertések állománya nagymértékben visszaesett, miközben a tyúkál-lomány enyhén növekedett, a szarvasmarhák és juhok állománya nem változott számottevően. A bruttó kibocsátást vizsgálva megállapítható, hogy a vizsgált idő-szakban jelentős eltolódás tapasztalható az állatok és állati termékek termeléséről a növényi termékek termelése felé. ------------------ Concerning the structure of Hungarian agriculture, the number of private farms de-clined sharply between 2000 and 2013, while the number of enterprises has not changed significantly. The decline primarily occurred in the number of small farms producing for their own consumption. In this context, regarding the agricultural area used by private farms, concentration was observed, while a slight decrease in concen-tration can be observed for the enterprises. The number of pigs declined markedly, while the chicken stock rose slightly; the cattle and sheep population did not change significantly. Looking at the gross output, the period under review experienced a sig-nificant shift from the production of animal and animal products to the production of plant products.
Robustness of chiral symmetry in atomic nuclei with reflection-asymmetric shapes
Creators: name: Petrache, C. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The present paper is a comment regarding the robustness of the chirality in presence of the space-reflection asymmetry, which leads to pairs of interleaved positive- and negative-parity bands. The recent results reported in Ref. \cite{2006.12062} which introduced the $chiture$ and $chiplex$ quantum numbers to describe an ideal nuclear system with simultaneous chiral and reflection symmetry breaking, are commented.
Thermal and Electrical Properties of gamma-NaxCoO2 (0.70 < x < 0.78)
Creators: name: Sakurai, H.
name: Tsujii, N.
name: Takayama-Muromachi, E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have performed specific heat and electric resistivity measurements of Na$_{x}$CoO$_{2}$ ($x=0.70$-0.78). Two anomalies have been observed in the specific heat data for $x=0.78$, corresponding to magnetic transitions at $T_{c}=22$ K and $T_{k}\simeq 9$ K reported previously. In the electrical resistivity, a steep decrease at $T_{c}$ and a bending-like variation at $T_{b}$(=120K for $x=0.78$) have been observed. Moreover, we have investigated the $x$-dependence of these parameters in detail. The physical properties of this system are very sensitive to $x$, and the inconsistent results of previous reports can be explained by a small difference in $x$. Furthermore, for a higher $x$ value, a phase separation into Na-rich and Na-poor domains occurs as we previously proposed, while for a lower $x$ value, from characteristic behaviors of the specific heat and the electrical resistivity at the low-temperature region, the system is expected to be in the vicinity of the magnetic instability which virtually exists below $x=0.70$.
description: 4 pages (3 figures included) and an extra figure (gif), to be published in J. Phys. Soc. Jpn. 73 (9) with possible minor revisions
title: Préface_La Décoration des tissus par un procédé manuel
Creators: name: AmateurS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Préface
description: ID_PARA_00913
The Four Tank Model of Economic Flow
Creators: name: Devaraj, Maurice
Publisher: name: figshare
Year: 2020
Subjects: Economics

description: This paper presents an economic model, which uses hydraulic principles of natural flow and forced flow to model the flow of economic resources between different economic strata, the impact of negative and positive events on the economic flow, and suggests remedial measures that may be undertaken to correct impact of events such as the COVID-19 pandemic. This model presents a basic description of economic structures, and can be modeled and extrapolated for different economic levels. It also describes flow relationships and the definition of different economic elements with reference to this model.