cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A submesoscale modelling approach to understanding the past, present, and future carbonate chemistry balance of the Salish Sea
Creators: name: Jarníková, Tereza
Publisher: name: University of British Columbia
Year: 2022

description: Over the past 250 years, atmospheric levels of carbon dioxide (CO₂) have increased at an unprecedented rate. The ocean has absorbed a significant proportion of this anthro- pogenic carbon, resulting in changes to marine chemistry that negatively impact a wide variety of ocean organisms. Disproportionately productive coastal systems may be par- ticularly vulnerable to these changes; however, the detection and impact of secular carbon trends in these systems is complicated by heightened natural variability as compared to open-ocean regimes and is comparatively poorly understood. This dissertation inves- tigates the changing carbonate chemistry of the Salish Sea, a representative Northeast Pacific coastal system. Both physical-oceanographic factors and primary productivity exert a control on the inorganic carbon balance. I first investigate their interaction in the Salish Sea by apply- ing a clustering method to four factors relating to stratification and to depth-integrated phytoplankton biomass extracted from an existing biophysical model, finding coherent biophysical provinces. I then develop and evaluate a carbonate chemistry model for the Salish Sea and use it to evaluate biogeochemical changes between the pre-industrial and modern periods. I find that to date, the increase in inorganic carbon in the Salish Sea has been 29-39 mmol m−3, a modest amount relative to other parts of the global ocean. However, because of the naturally high inorganic carbon content of Pacific waters, this increased carbon drives the estuary towards domain-wide undersaturation of aragonite year-round, negatively impacting shell-forming organisms. I then use a global database of coastal carbonate chemistry observations to show that estuaries throughout the Pacific Rim have likely already undergone a similar saturation state regime shift. I then quan- tify the relative components of the Salish Sea carbonate chemistry budget in the context of the identified biophysical provinces. I note the dominant role and large variability of lateral boundary fluxes in setting the inorganic carbonate chemistry of the system. Fi- nally, I estimate that future anthropogenic carbon increase in the system by year 2050, under a conservative emissions scenario, will be approximately 80% of the increase from pre-industrial to present, and that this increase will have further significant effects on aragonite saturation states.
Wilson Fermions and Axion Electrodynamics in Optical Lattices
Creators: name: Bermudez, A.
name: Mazza, L.
name: Rizzi, M.
name: Goldman, N.
name: Lewenstein, M.
name: Martin-Delgado, M. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The formulation of massless relativistic fermions in lattice gauge theories is hampered by the fundamental problem of species doubling, namely, the rise of spurious fermions modifying the underlying physics. A suitable tailoring of the fermion masses prevents such abundance of species, and leads to the so-called Wilson fermions. Here we show that ultracold atoms provide us with the first controllable realization of these paradigmatic fermions, thus generating a quantum simulator of fermionic lattice gauge theories. We describe a novel scheme that exploits laser-assisted tunneling in a cubic optical superlattice to design the Wilson fermion masses. The high versatility of this proposal allows us to explore a variety of interesting phases in three-dimensional topological insulators, and to test the remarkable predictions of axion electrodynamics.
description: RevTex4 file, color figures, slightly longer than the published version
Stringy origin of Tevatron Wjj anomaly
Creators: name: Anchordoqui, Luis A.
name: Goldberg, Haim
name: Huang, Xing
name: Lust, Dieter
name: Taylor, Tomasz R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The invariant mass distribution of dijets produced in association with W bosons, recently observed by the CDF Collaboration at Tevatron, reveals an excess in the dijet mass range 120-160 GeV/c^2, 3σbeyond Standard Model expectations. We show that such an excess is a generic feature of low mass string theory, due to the production and decay of a leptophobic Z', a singlet partner of SU(3) gluons coupled primarily to the U(1) baryon number. In this framework, U(1) and SU(3) appear as subgroups of U(3) associated with open strings ending on a stack of 3 D-branes. In addition, a minimal model contains two other stacks to accommodate the electro-weak SU(2) \in U(2) and the hypercharge U(1). Of the three U(1) gauge bosons, the two heavy Z' and Z" receive masses through the Green-Schwarz mechanism. For a given Z' mass, the model is quite constrained. Fine tuning three of its free parameters is just sufficient to simultaneously ensure: a small Z-Z' mixing in accord with the stringent LEP data on the $Z$ mass; very small (less than 1%) branching ratio into leptons; and a large hierarchy between Z" and Z' masses. The heavier neutral gauge boson Z" is within the reach of LHC.
description: v1 8 pages revtex; v2 better fit to the data (Z" within LHC reach), references added; v3 to appear in PLB
Inverting a permutation is as hard as unordered search
Creators: name: Nayak, Ashwin
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Complexity (cs.CC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: F.2.2; F.1.3; F.1.2
subject: 68Q12, 68Q17, 81P68, 68Q15, 68Q25

description: We show how an algorithm for the problem of inverting a permutation may be used to design one for the problem of unordered search (with a unique solution). Since there is a straightforward reduction in the reverse direction, the problems are essentially equivalent. The reduction we present helps us bypass the hybrid argument due to Bennett, Bernstein, Brassard, and Vazirani (1997) and the quantum adversary method due to Ambainis (2002) that were earlier used to derive lower bounds on the quantum query complexity of the problem of inverting permutations. It directly implies that the quantum query complexity of the problem is asymptotically the same as that for unordered search, namely in Theta(sqrt(n)).
description: 5 pages. Numerous changes to improve the presentation
Rheological behavior of silica based suspensions for shear thickening applications
Creators: name: Alaee Faradonbeh, Parvin
Publisher: name: University of British Columbia
Year: 2022

description: This thesis focuses on the fabrication and optimization of shear thickening fluids (STFs) for impact protection applications. STFs were prepared by dispersion of fumed silica nanoparticles (NPs) in a polyethylene glycol (PEG) medium. In order to fully understand the shear thickening behavior, the suspensions were varied in the suspended particle size, surface chemistry, and weight fraction. First, the microstructural characteristics of suspensions were investigated by oscillatory rheological techniques. Cryo-scanning electron microscopy was used to link the rheological observations to the microstructural features of suspensions. Then, the shear thickening behavior of suspensions was explored. No thickening behavior was observed for suspensions with a smaller particle size due to increased surface functional group density. Our results proved that the solvation phenomenon, which is the main mechanism for stability/flocculation of suspension and therefore resultant shear response behavior, is not applicable in all cases. Additionally, at the same particle size, increasing the hydrophobicity of particles reduced the thickening extent and delayed the thickening behavior to higher shear values. It was also found that a critical value of 20 wt. % particle is required in order to observe shear thickening behavior. A deep insight is provided into how hydrocluster formation is the most likely explanation for the shear thickening mechanism among other mechanisms (i.e., contact rheology and order−disorder transition). Considering that developed STFs should be able to operate in various service conditions, the effects of temperature and shear history on the performance of STFs were studied. It was unraveled that surface chemistry greatly affects the temperature-dependent behavior of STFs. The findings of this study have significant implications for understanding the effects of various parameters on shear thickening behavior as well as assisting in tailoring STFs for specific applications.
title: ÐÑÑÐ²Ð»ÐµÐ½Ð¸Ðµ Ð²ÑÐµÐ´Ð¾Ð½Ð¾ÑÐ½ÑÑ Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ð¹ Ð´Ð»Ñ Ð¾Ð¿ÐµÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Android Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ ÐºÐ°Ð¿ÑÑÐ»ÑÐ½Ð¾Ð¹ Ð½ÐµÐ¹ÑÐ¾Ð½Ð½Ð¾Ð¹ ÑÐµÑÐ¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸ÑÑÐ°
titleType: Subtitle
title: Detection of malicious applications for the Android operating system using the capsule neural network
Creators: name: Ð¡ÑÑÐ»Ð¾Ð², Ð¡ÑÐ°Ð½Ð¸ÑÐ»Ð°Ð²
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð±ÐµÐ·Ð¾Ð¿Ð°ÑÐ½Ð¾ÑÑÑ
Ð±ÐµÐ·Ð¾Ð¿Ð°ÑÐ½Ð¾ÑÑÑ Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½ÑÑ ÑÑÑÑÐ¾Ð¹ÑÑÐ²
google android
Ð²ÑÐµÐ´Ð¾Ð½Ð¾ÑÐ½Ð¾Ðµ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ðµ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ðµ
Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ
Ð³Ð»ÑÐ±Ð¾ÐºÐ¾Ðµ Ð¾Ð±ÑÑÐµÐ½Ð¸Ðµ
information security
mobile security
malware software
dynamic analysis of the application
deep learning

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½ Ð¿Ð¾Ð´ÑÐ¾Ð´ Ðº Ð²ÑÑÐ²Ð»ÐµÐ½Ð¸Ñ Ð²ÑÐµÐ´Ð¾Ð½Ð¾ÑÐ½Ð¾Ð³Ð¾ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ñ Ð´Ð»Ñ ÐÐ¡ Android Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð³Ð»ÑÐ±Ð¾ÐºÐ¾Ð³Ð¾ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ. Ð ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ñ Ð¿Ð¾Ð´ÑÐ¾Ð´Ð¾Ð² Ðº Ð°Ð½Ð°Ð»Ð¸Ð·Ñ Android-Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð³Ð»ÑÐ±Ð¾ÐºÐ¾Ð³Ð¾ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ, Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¸ ÐºÐ¾ÑÐ¾ÑÑÑ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÐ¹ Ð¿Ð¾Ð´ÑÐ¾Ð´, Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÑÑÐ¸Ð¹ ÐºÐ°Ð¿ÑÑÐ»ÑÐ½ÑÑ Ð½ÐµÐ¹ÑÐ¾Ð½Ð½ÑÑ ÑÐµÑÑ. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾Ð¹ Ð¾ÑÐµÐ½ÐºÐ¸ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÑÐ¾ÑÐ¸Ð¿Ð° Ð´ÐµÐ¼Ð¾Ð½ÑÑÑÐ¸ÑÑÑÑ Ð²ÑÑÐ¾ÐºÑÑ Ð²ÐµÑÐ¾ÑÑÐ½Ð¾ÑÑÑ Ð¾Ð±Ð½Ð°ÑÑÐ¶ÐµÐ½Ð¸Ñ Ð²ÑÐµÐ´Ð¾Ð½Ð¾ÑÐ½ÑÑ Android-Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ð¹.
description: This paper presents an approach to identifying malware for Android OS based on deep learning. The paper discusses the problems of existing approaches to the analysis of Android applications using deep learning, on the basis of which they proposed their own approach using a capsular neural network. The results of an experimental assessment of the effectiveness of the developed prototype demonstrate a high probability of detecting malicious Android applications.
MPEC 2023-J80 : S/2007 S 7
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: S/2007 S 7

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Spectra disentangling applied to the Hyades binary Theta^2 Tau AB: new orbit, orbital parallax and component properties
Creators: name: Torres, K. B. V.
name: Lampens, P.
name: Frémat, Y.
name: Hensberge, H.
name: Lebreton, Y.
name: Y.
name: Skoda, P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Theta^2 Tauri is a detached and single-lined interferometric-spectroscopic binary as well as the most massive binary system of the Hyades cluster. The system revolves in an eccentric orbit with a periodicity of 140.7 days. The secondary has a similar temperature but is less evolved and fainter than the primary. It is also rotating more rapidly. Since the composite spectra are heavily blended, the direct extraction of radial velocities over the orbit of component B was hitherto unsuccessful. Using high-resolution spectroscopic data recently obtained with the Elodie (OHP, France) and Hermes (ORM, La Palma, Spain) spectrographs, and applying a spectra disentangling algorithm to three independent data sets including spectra from the Oak Ridge Observatory (USA), we derived an improved spectroscopic orbit and refined the solution by performing a combined astrometric-spectroscopic analysis based on the new spectroscopy and the long-baseline data from the Mark III optical interferometer. As a result, the velocity amplitude of the fainter component is obtained in a direct and objective way. Major progress based on this new determination includes an improved computation of the orbital parallax. Our mass ratio is in good agreement with the older estimates of Peterson et al. (1991, 1993), but the mass of the primary is 15-25% higher than the more recent estimates by Torres et al. (1997) and Armstrong et al. (2006). Due to the strategic position of the components in the turnoff region of the cluster, these new determinations imply stricter constraints for the age and the metallicity of the Hyades cluster. The location of component B can be explained by current evolutionary models, but the location of the more evolved component A is not trivially explained and requires a detailed abundance analysis of its disentangled spectrum.
description: in press, 13 pages, 10 Postscript figures, 5 tables. Table~4 is available as online material. Keywords: astrometry - techniques: high angular resolution - stars: binaries: visual - stars: binaries: spectroscopic - stars: fundamental parameters
Wilson Loop Renormalization Group Flows
Creators: name: Polchinski, Joseph
name: Sully, James
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The locally BPS Wilson loop and the pure gauge Wilson loop map under AdS/CFT duality to string world-sheet boundaries with standard and alternate quantizations of the world-sheet fields. This implies an RG flow between the two operators, which we verify at weak coupling. Many additional loop operators exist at strong coupling, with a rich pattern of RG flows.
description: 10 p, 2 figures. v3: Title change, expanded treatment of RG flows
Graphitization effects induced by thermal treatments of 4H-SiC
Creators: name: Migliore Francesca
name: Piccione Giuseppe
name: Salvatore, Patanè
name: Marco, Cannas
name: Franco, Gelardi
name: Brischetto Andrea
name: Vecchio Daniele
name: Chibbaro Claudio
name: Simonpietro, Agnello
Publisher: name: Zenodo
Year: 2023
Subjects: Silicon Carbide
Graphitization
Thermal treatments
Raman Spectroscopy
Atomic Force Microscopy

description: 4H-SiC is one of the most promising indirect wide-bandgap (3.3 eV) semiconductor for power devices used in the emerging area of high-voltage and high-temperature electronics as well as space and radiation harsh environments applications. The wide diffusion of devices in SiC is related to the high quality of the crystals, both for substrates and epitaxial layers. In this work, we performed thermal treatments in Argon atmosphere at temperatures below 2000°C with the aim to study the thermal stability of substrates of 4H-SiC. The wafer substrates were characterized by micro-Raman spectroscopy, Atomic Force Microscopy and Electrostatic Force Microscopy. The thermal treatments induced inhomogeneity of the wafer surface due to a graphitization process starting from 1600°C.
Recommending Better Food Choices for Clinically Obese Users
Creators: name: Ludwig, Bernd
name: Meyer, Selina
name: Dietz, Julian
name: Donabauer, Gregor
name: Pfaffelhuber, Andreas
name: Elsweiler, David
Publisher: name: Universität Regensburg
Year: 2021
Subjects: subject: food recsys, user interface, nutrition, obesity
subject: 020 Bibliotheks- und Informationswissenschaft

description: In this demo, we present an interactive recommender system that suggests recipes to participants of a weight loss programme. Nutritional constraints imposed by the programme serve as initial information to tackle the crucial cold start problem.
description: ACM ISBN 978-1-4503-8367-7/21/06
DINI-Jahrestagung 2021 - Vorstellung der UAG Schulungen/Fortbildungen der DINI/nestor-AG Forschungsdaten
Creators: name: Jacob, Juliane
name: Wiljes, Cord
name: Biernacka, Katarzyna
name: Neumann, Janna
Publisher: name: Zenodo
Year: 2021
Subjects: Forschungsdatenmanagement
Schulung
Training

description: Am 5. und 6. Oktober 2021 fand die 22. Jahrestagung der Deutschen Initiative für Netzwerkinformation (DINI) online statt. Unter dem Motto „Zukunft gestalten" - Nachhaltige Infrastrukturen für Studium, Lehre und Forschung - widmeten sich die Teilnehmenden den Herausforderungen rund um den nachhaltigen Betrieb von Informationsinfrastrukturen für Forschung, Lehre und Wissenstransfer.

 Die UAG Schulungen/Fortbildungen der AG Forschungsdaten stellte sich in einem Poster vor. Klar herausgestellt wurde das Mission Statement: die Weiterbildung von FD-Manager*innen und Data Stewards im deutschsprachigen Raum und ein langfristig angestrebter zertifizierter FDM-Kurs.

 Des Weiteren wurden die Aktivitäten seit Gründung im März 2019 und die Schwerpunkte (interaktive Schulungen, das Train-the-Trainer-Konzept sowie die Materialsammlung für Schulungen) vorgestellt.

 Alle Interessierten wurden abschließend zum Mitmachen ermutigt und herzlich eingeladen.
Viscous Fluids and Gauss-Bonnet Modified Gravity
Creators: name: Gorbunova, Olesya
name: Sebastiani, Lorenzo
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study effects of cosmic fluids on finite-time future singularities in modified $f(R,G)$-gravity, where $R$ and $G$ are the Ricci scalar and the Gauss-Bonnet invariant, respectively. We consider the fluid equation of state in the general form, $ω=ω(ρ)$, and we suppose the existence of a bulk viscosity. We investigate quintessence region ($ω>-1$) and phantom region ($ω
description: 14 pages
Maximal-entropy random walks in complex networks with limited information
Creators: name: Sinatra, Roberta
name: Gómez-Gardeñes, Jesús
name: Lambiotte, Renaud
name: Nicosia, Vincenzo
name: Latora, Vito
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Maximization of the entropy rate is an important issue to design diffusion processes aiming at a well-mixed state. We demonstrate that it is possible to construct maximal-entropy random walks with only local information on the graph structure. In particular, we show that an almost maximal-entropy random walk is obtained when the step probabilities are proportional to a power of the degree of the target node, with an exponent $α$ that depends on the degree-degree correlations, and is equal to 1 in uncorrelated graphs.
description: 4 pages, 1 figure, 1 table + 1 page supplementary material
title: Early kick detection using data-driven Bayesian network: model development and experimental testing
Creators: name: Dinh, Nhat Minh
Publisher: name: Memorial University of Newfoundland
Year: 2020

description: Safety is one of the keys to success for offshore oil and gas development projects. Drilling operation becomes more and more complicated when moving to deeper water and harsher conditions, which requires a higher level of safety. Kick is an event that happens when the hydrostatic pressure of drilling mud is lesser than the formation pressure which let the formation fluid enter the wellbore. Detection of a kick event as soon as it happens will spare drillers more time to make decision and take necessary actions. An uncontrolled or unaware kick event may lead to a well blowout which causes major damage to infrastructure, could kill people and costs lots of money. The conventional method of kick detection entails monitoring surface parameters such as stand-pipe pressure, mud pit volume, changing in flow rate and other drilling parameters can lead to the delay in detection. Some recent studies have successfully proved the ability to employ downhole parameters to realize kick. The new methods show the robust results in detection and the improvement in detection time. Besides, data-driven Bayesian network (BN) has shown to solve the problem in historical data, which is usually available, unlike expensive, and insufficient, expert knowledge. This work presents the application of data-driven BN using downhole parameters to early kick detection. The work includes three main parts: 1) creating and testing a data-based Bayesian network based on historical experiment data and synthetic data; 2) designing drilling sample, setting up and conducting experiments with the new large drilling simulator (LDS); 3) validating the data-based Bayesian network with the data from the LDS experiment. Upon the success of this work, the developed BN model will serve an efficient and effective way to detect kick early, which will enable appropriate corrective actions. The new setup of experiment with LDS can be used to conduct further experimentation to simulate more complicated kick scenarios during drilling operation.
Yale Reports (from WTIC - 1080): Alcohol and the Citizen
Creators: name: Alcohol Research Documentation, Inc.
Publisher: name: No Publisher Supplied
Year: 1959

description: Copy of the transcript of the radio program Yale Reports, which hosted a series entitled "Alcohol and the Citizen" from September 20 to October 18, 1959 about the Center of Alcohol Studies. Editor Edith Kerr talked with several CAS faculty members. The titles of the five episodes are as follows: The Yale Center of Alcohol Studies, Alcohol and the Human Body, Alcoholism, Alcoholism Therapy, and Alcohol, the Citizen, and Research.
Fast-Decodable Asymmetric Space-Time Codes from Division Algebras
Creators: name: Vehkalahti, Roope
name: Hollanti, Camilla
name: Oggier, Frédérique
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: Rings and Algebras (math.RA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Multiple-input double-output (MIDO) codes are important in the near-future wireless communications, where the portable end-user device is physically small and will typically contain at most two receive antennas. Especially tempting is the 4 x 2 channel due to its immediate applicability in the digital video broadcasting (DVB). Such channels optimally employ rate-two space-time (ST) codes consisting of (4 x 4) matrices. Unfortunately, such codes are in general very complex to decode, hence setting forth a call for constructions with reduced complexity. Recently, some reduced complexity constructions have been proposed, but they have mainly been based on different ad hoc methods and have resulted in isolated examples rather than in a more general class of codes. In this paper, it will be shown that a family of division algebra based MIDO codes will always result in at least 37.5% worst-case complexity reduction, while maintaining full diversity and, for the first time, the non-vanishing determinant (NVD) property. The reduction follows from the fact that, similarly to the Alamouti code, the codes will be subsets of matrix rings of the Hamiltonian quaternions, hence allowing simplified decoding. At the moment, such reductions are among the best known for rate-two MIDO codes. Several explicit constructions are presented and shown to have excellent performance through computer simulations.
description: 26 pages, 1 figure, submitted to IEEE Trans. Inf. Theory, October 2010
The relation between dynamics and star formation in barred galaxies
Creators: name: Martínez-García, Eric E.
name: González-Lópezlira, Rosa A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We analyze optical and near-infrared data of a sample of 11 barred spiral galaxies, in order to establish a connection between star formation and bar/spiral dynamics. We find that 22 regions located in the bars, and 20 regions in the spiral arms beyond the end of the bar present azimuthal color/age gradients that may be attributed to star formation triggering. Assuming a circular motion dynamic model, we compare the observed age gradient candidates with stellar populations synthesis models. A link can then be established with the disk dynamics that allows us to obtain parameters like the pattern speed of the bar or spiral, as well as the positions of resonance radii. We subsequently compare the derived pattern speeds with those expected from theoretical and observational results in the literature (e.g., bars ending near corotation). We find a tendency to overestimate bar pattern speeds derived from color gradients in the bar at small radii, away from corotation; this trend can be attributed to non-circular motions of the young stars born in the bar region. In spiral regions, we find that ~ 50% of the color gradient candidates are "inverse", i.e., with the direction of stellar aging contrary to that of rotation. The other half of the gradients found in spiral arms have stellar ages that increase in the same sense as rotation. Of the 9 objects with gradients in both bars and spirals, six (67%) appear to have a bar and a spiral with similar Omega_p, while three (33%) do not.
description: Accepted for publication in ApJ
Parameter estimation from Gravitational waves generated by non-spinning binary black holes with laser interferometers: beyond the Fisher information
Creators: name: Vitale, Salvatore
name: Zanolin, Michele
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we apply to gravitational waves from non-spinning binary systems a recently intro- duced frequentist methodology to calculate analytically the error for a maximum likelihood estimate (MLE) of physical parameters. While existing literature focuses on using the Cramer Rao Lower bound (CRLB) and Monte Carlo simulations, we use a power expansion of the bias and covariance in inverse powers of the signal to noise ratio. The use of higher order derivatives of the likelihood function in the expansions makes the prediction also sensitive to the secondary lobes of the MLE probability distribution. We discuss conditions for validity of the CRLB and predict new features in regions of the parameter space currently not explored. For example, we see how the bias can become the most important contributor to the parameters' errors for high mass systems (200M and above).
مجلة اداب ذي قار العدد 32 لسنة 2020
Creators: name: College Of Arts University Of Thi Qar
name: Journal, Thi Qar Arts
Publisher: name: figshare
Year: 2021
Subjects: Uncategorized

description: مجلة اداب ذي قار العدد 32 لسنة 2020
Variant Supercurrents and Linearized Supergravity
Creators: name: Zheng, Sibo
name: Huang, Jia-Hui
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper the variant supercurrents based on consistency and completion in off-shell N=1 supergravity are studied. We formulate the embedding relations for supersymmetric current and energy tensor into supercurrent multiplet. Corresponding linearized supergravity is obtained with appropriate choice of Wess-Zumino gauge in each gravity supermultiplet.
description: v1: 9 pp; v2: minor changes; v3: 10 pp, published version
Harnessing the potential for pollinator conservation in agriculture : semi-natural habitat enhancements in Delta, British Columbia
Creators: name: McGregor, Carly Laura
Publisher: name: University of British Columbia
Year: 2022

description: Wild insect communities are key contributors to agriculture through crop pollination. However, many conventional practices in crop production harm insect populations; pesticides have toxic health effects for pollinators, herbicide applications diminish their access to foraging resources, and the frequent disturbance or removal of natural areas destroys habitat. There is growing evidence suggesting that the establishment of functional plant species within semi-natural agricultural areas supports pollinators, either by providing foraging or habitat resources. Planted hedgerows of native shrub and tree species within crop margins, as well as set-aside lands sowed with either grasses or a mix of grasses and flowering herbaceous plants, are examples of such semi-natural habitat enhancements. However, planted hedgerows have shown varying support of pollinating insect communities, and grassland set-asides have not been assessed for their pollinator conservation potential across management types. I conducted a three-phase research study to investigate the conservation potential of enhanced semi-natural areas in the Lower Fraser Valley of British Columbia. First, I assessed pollinator community diversity in three agricultural margins (planted hedgerows, remnant hedgerows, unplanted margins) to evaluate the success of enhanced margins to support pollinators compared to unplanted weedy margins. I found that pollinators visited flowers in hedgerows more often than in weedy margins, but beyond floral visits, I did not observe overall community differences among margin types, suggesting that weedy crop margins are also valuable for pollinators. Second, I evaluated pollinator diversity in three agricultural field types (traditional grassland set-asides, grassland set-asides with added flowers, and active crop control fields) and concluded that both set-asides practices supported pollinators better than crop fields did. Finally, I explored management considerations for enhancement practices, focusing on plant species selection used in seeding set-aside fields or floral strips for pollinators, through a series of literature reviews and expert interviews. Results indicated that floral identity and floral diversity are both important management considerations for floral establishments. These findings provide evidence that semi-natural habitat enhancements supply key resources for insect pollinators in agricultural matrices. The adoption of these practices can promote both the ecological and productive sustainability of agriculture.
Local and Global Existence for Non-local Multi-Species Advection-Diffusion Models
Creators: Valeria Giunta
Thomas Hillen
Mark A. Lewis
Jonathan R. Potts
Publisher: name: University of Alberta Library
Year: 2021

Non-local advection is a key process in a range of biological systems, from cells within individuals to the movement of whole organisms. Consequently, in recent years, there has been increasing attention on modelling non-local advection mathematically. These often take the form of partial differential

equations, with integral terms modelling the non-locality. One common formalism is the aggregationdiffusion equation, a class of advection diffusion models with non-local advection. This was originally used to model a single population, but has recently been extended to the multi-species case to model the way organisms may alter their movement in the presence of coexistent species. Here we prove existence theorems for a class of non-local multi-species advection-diffusion models, with an arbitrary number of co-existent species. We prove global existence for models in n = 1 spatial dimension and local existence for n > 1. We describe an efficient spectral method for numerically solving these models and provide example simulation output. Overall, this helps provide a solid mathematical foundation for studying the effect of inter-species interactions on movement and space use.
title: ÐÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð°Ñ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ñ ÑÐ²ÐµÑÐ¾Ð²Ð¾Ð³Ð¾ ÐºÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð² Ð¼Ð°ÑÑÐ¸ÑÐ½ÑÑ ÑÑÑÐ¸Ñ ÐºÐ¾Ð´Ð°Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Program implementation for color coding in matrix barcodes
Creators: name: ÐÑÐ»Ð°ÐºÐ¾Ð², ÐÐ°Ð½Ð¸Ð»
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: ÐÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÑÑÐ¸Ñ Ð¾Ð²Ð¾Ðµ
Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ð¹
Ð³ÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÐºÐ¾Ð´Ñ
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ÑÐ²ÐµÑÐ¾Ð²Ð¾Ðµ ÐºÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ

description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ¸ÑÑÐµÐ¼Ð°, ÑÐ¾ÑÑÐ¾ÑÑÐ°Ñ Ð¸Ð· Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾ÑÐ° Ð¸ ÑÑÐ¸ÑÑÐ²Ð°ÑÐµÐ»Ñ ÑÐ²ÐµÑÐ½ÑÑ Ð¼Ð°ÑÑÐ¸ÑÐ½ÑÑ ÑÑÑÐ¸ÑÐºÐ¾Ð´Ð¾Ð². Ð ÐºÐ°ÑÐµÑÑÐ²Ðµ ÑÑÐµÐ´ÑÑÐ² ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð»Ð¸ÑÑ Swift Ð¸ Objective-C Ð² ÑÑÐµÐ´Ðµ Xcode Ð´Ð»Ñ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ, Ð° ÑÐ°ÐºÐ¶Ðµ Python Ð´Ð»Ñ Ð¿ÑÐ¾ÑÐ¾ÑÐ¸Ð¿Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÐ¸ÑÑÐµÐ¼Ñ Ð½Ð° ÐÐ. Ð Ð¿ÑÐ¾ÑÐµÑÑÐµ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð±ÑÐ»Ð¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ñ Ð±Ð¸Ð±Ð»Ð¸Ð¾ÑÐµÐºÐ¸ OpenCV, pyzbar, UIKit Ð¸ Vision. Ð¢Ð°ÐºÐ¶Ðµ Ð´Ð»Ñ ÑÐµÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð»ÑÑ pytest. Ð¡Ð¸ÑÑÐµÐ¼Ð° Ð±ÑÐ»Ð° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° Ð´Ð»Ñ Ð¸Ð·ÑÑÐµÐ½Ð¸Ñ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÐ¸ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ñ Ð¾Ð±ÑÐµÐ¼Ð° ÐºÐ¾Ð´Ð¸ÑÑÐµÐ¼Ð¾Ð¹ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð² Ð¼Ð°ÑÑÐ¸ÑÐ½ÑÑ ÑÑÑÐ¸ÑÐºÐ¾Ð´Ð°Ñ.
description: The object of the study is the system, containing generator and scanner for colored matrix barcodes. Swift and Objective-C in Xcode IDE were used as development tools for mobile application implementation. Also Python was used for prototyping and for implementation of the desktop version of the system. In the process of development libraries were used, such as OpenCV, pyzbar, UIKit and Vision. Also pytest library was used for testing purposes. The system has been developed for studying the possibility for increasing data capacity in matrix barcodes.
Non-equilibrium 1D many-body problems and asymptotic properties of Toeplitz determinants
Creators: name: Gutman, D. B.
name: Gefen, Yuval
name: Mirlin, A. D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Non-equilibrium bosonization technique facilitates the solution of a number of important many-body problems out of equilibrium, including the Fermi-edge singularity, the tunneling spectroscopy and full counting statistics of interacting fermions forming a Luttinger liquid. We generalize the method to non-equilibrium hard-core bosons (Tonks-Girardeau gas) and establish interrelations between all these problems. The results can be expressed in terms of Fredholm determinants of Toeplitz type. We analyze the long time asymptotics of such determinants, using Szegő and Fisher-Hartwig theorems. Our analysis yields dephasing rates as well as power-law scaling behavior, with exponents depending not only on the interaction strength but also on the non-equilibrium state of the system.
description: 13 pages, 3 figures
SUSY QCD Corrections to Higgs-b Production : Is the Δ_b Approximation Accurate?
Creators: name: Dawson, S.
name: Jackson, C. B.
name: Jaiswal, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The associated production of a Higgs boson with a b quark is a discovery channel for the lightest MSSM neutral Higgs boson. We consider the SUSY QCD contributions from squarks and gluinos and discuss the decoupling properties of these effects. A detailed comparison of our exact order(alpha_s) results with those of a widely used effective Lagrangian approach, the Δ_b approximation, is presented. The Δ_b approximation is shown to accurately reproduce the exact one-loop SQCD result to within a few percent over a wide range of parameter space.
description: figures added, version to be published in Phys Rev D
title: High-resolution seismic and core-based stratigraphy of the Southwestern Black Sea shelf during the Holocene
Creators: name: Ankindinova, Olga
Publisher: name: Memorial University of Newfoundland
Year: 2020

description: The paleo-environmental evolution of the Black Sea during the last 12,000 years is studied using high-resolution seismic-stratigraphic and geochemical results for two long composite cores from the southwestern shelf, constrained by 56 radiocarbon dates on mollusc shells. A grid of Huntec deep-tow seismic-reflection profiles (~9150 line-km), complemented by 72 gravity cores and 25 piston cores reveals a prominent shelf-crossing transgressive unconformity α which is overlain in most areas by, in succession, allounit 1b (~12.5–7.4 cal ka BP) between α and the α1 submarine unconformity/correlative conformity, allounit 1c (~7.4–5.3 cal ka BP) between the α1 and α2 submarine unconformities/correlative conformities, and allounit 1d (deposited since ~5.3 cal ka BP).
 The ⁸⁷Sr/⁸⁶Sr isotopic signature in molluscs shows four stages of increase corresponding to salination associated with the reconnection of the Black Sea to the global ocean: 12,145–9580 cal yr BP (stage A; stable, brackish lacustrine conditions); 9580–9490 cal yr BP (stage B: freshish waters); 9465–9380 cal yr BP (stage C; sharp ⁸⁷Sr/⁸⁶Sr increase to a plateau spanning 350–400 years); ~8985 cal yr BP to the present day (stage D; step-wise salination). The existence of the first plateau provides strong evidence against catastrophic flooding of a lowstand Black Sea as proposed by other workers. δ¹⁸O and δ¹³C values in ostracod species Palmoconcha agilis and Loxoconcha lepida define three isotopic substages corresponding to a transition from the Neoeuxine Lake to modern conditions. These are mirrored in trace-element/Ca data, which reveal a Neoeuxine Lake stage (12.1–9.4 cal ka BP), the transition from lacustrine to marine conditions (9.4–6.3 cal ka BP) and the establishment of marine conditions (6.3–0 cal ka BP). At ~6.3 cal ka BP, isotopic data and trace-element/Ca ratios exhibit a major shift contemporaneous with a sharp increase in water temperature from 12–14°C to 17–19°C. This shift coincides with the weakening of Black Sea outflow and the proliferation of marine organisms.
 This study proves that the level of the Neoeuxine Lake must have been significantly higher than −70 m at the time of the reconnection at 9.4 cal ka BP with the gradual step-like transition to present-day conditions.
Fractional topological insulators in three dimensions
Creators: name: Maciejko, Joseph
name: Qi, Xiao-Liang
name: Karch, Andreas
name: Zhang, Shou-Cheng
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Topological insulators can be generally defined by a topological field theory with an axion angle theta of 0 or pi. In this work, we introduce the concept of fractional topological insulator defined by a fractional axion angle and show that it can be consistent with time reversal (T) invariance if ground state degeneracies are present. The fractional axion angle can be measured experimentally by the quantized fractional bulk magnetoelectric polarization P_3, and a `halved' fractional quantum Hall effect on the surface with Hall conductance of the form (p/q)(e^2/2h) with p,q odd. In the simplest of these states the electron behaves as a bound state of three fractionally charged `quarks' coupled to a deconfined non-Abelian SU(3) `color' gauge field, where the fractional charge of the quarks changes the quantization condition of P_3 and allows fractional values consistent with T-invariance.
description: 4+epsilon pages, 1 figure; accepted for publication in Phys. Rev. Lett
CULTURAL AND SOCIOECONOMIC VARIATIONS IN CHILDREN'S AUTONOMY IN MEXICO
Creators: name: Lechuga, Jose Guillermo
Publisher: name: Zenodo
Year: 2023
Subjects: autonomy
Indigenous children
household work
cultural variation
socioeconomic status
Learning by Observing and Pitching In

description: Previous research suggests that Indigenous and non-Indigenous children have cultural differences that influence their levels of autonomy. Grounded in the Learning by Observing and Pitching In (LOPI) paradigm, this study explored the cultural variation in children’s autonomy across three different groups that varied in socioeconomic resources and cultural practices (i.e., middle-class children, working-class, and Purépecha children) from Guadalajara, Mexico. Using existing child self-reported data collected as part of a larger research study, a total of 30 children (ages 8-11, 10 girls, 10 children from each group) were randomly selected. Thirty-three interview questions and children’s responses were extrapolated from the complete semi-structured interviews, focusing on various domains of autonomy (e.g., household chores, cooking, homework tasks & responsibilities, child’s perspective on chores, opportunities for independence & self-governance, etc.) for analysis. Using a qualitative approach and in collaboration with two Spanish-speaking coders, coding procedures were followed to create a codebook and used to code children’s responses to the various facets of autonomy. Thematic analysis was used to capture the richness of the children’s open-ended responses. Findings indicated several similarities across the three groups in how they contributed to household chores and other related activities; however, specific autonomous behaviors highlighted some cultural variations and how they uniquely make sense of their contributions (e.g., Purépecha children helping their parents at work, while middle-class were distracted with entertainment like TV and video games). Future research can investigate possible gender and age differences in the development of children’s autonomy within the context of cultural differences.
title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð´Ð¾Ð¿Ð¾Ð»Ð½ÐµÐ½Ð½Ð¾Ð¹ ÑÐµÐ°Ð»ÑÐ½Ð¾ÑÑÐ¸ Ð´Ð»Ñ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÑÑÐµÐ±Ð½ÑÑ Ð¿ÐµÑÐ°ÑÐ½ÑÑ Ð¸Ð·Ð´Ð°Ð½Ð¸Ð¹
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Research and methodology development for application of augmented reality to enhance the educational printed editions
Creators: name: ÐÐ¾Ð»ÐµÑÐ½Ð¸ÐºÐ¾Ð²Ð°, Ð¯ÑÐ¾ÑÐ»Ð°Ð²Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: ÐÐ°ÑÐ¸Ð½Ð½Ð°Ñ Ð³ÑÐ°ÑÐ¸ÐºÐ°
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3ds max

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸Ð·Ð»Ð¾Ð¶ÐµÐ½Ð° ÑÑÑÐ½Ð¾ÑÑÑ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð´Ð¾Ð¿Ð¾Ð»Ð½ÐµÐ½Ð½Ð¾Ð¹ ÑÐµÐ°Ð»ÑÐ½Ð¾ÑÑÐ¸ Ð² ÑÑÐµÐ±Ð½ÑÑ Ð¿ÐµÑÐ°ÑÐ½ÑÑ Ð¸Ð·Ð´Ð°Ð½Ð¸ÑÑ Ð´Ð»Ñ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÑÑÐ²Ð°Ð¸Ð²Ð°Ð½Ð¸Ñ Ð¾Ð±ÑÑÐ°ÑÑÐµÐ³Ð¾ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð°. ÐÐ°Ð½Ñ Ð¾Ð±ÑÐ¸Ðµ Ð¿Ð¾Ð½ÑÑÐ¸Ñ, ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ Ð´Ð¾Ð¿Ð¾Ð»Ð½ÐµÐ½Ð½Ð¾Ð¹ ÑÐµÐ°Ð»ÑÐ½Ð¾ÑÑÐ¸, ÑÑÐµÐ±Ð½Ð¾-Ð¼ÐµÑÐ¾Ð´Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿ÐµÑÐ°ÑÐ½ÑÑ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ð¹, ÑÑÑÑÐ¼ÐµÑÐ½ÑÑ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ° Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÑÑÐµÐ±Ð½Ð¾-Ð¼ÐµÑÐ¾Ð´Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð±ÑÐ¼Ð°Ð¶Ð½Ð¾Ð³Ð¾ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ñ Ð¿Ð¾ Ð²ÑÐ±ÑÐ°Ð½Ð½Ð¾Ð¹ ÑÐµÐ¼Ð°ÑÐ¸ÐºÐµ.
description: This paper presents the essence of the method of application of augmented reality in educational publications to improve the efficiency of edicational material. The General concepts, characteristics of augmented reality, teaching AIDS, three-dimensional models are given. The method of application on the example of educational and methodical paper manual on the chosen subject is developed.
Precision-enhanced object recognition for semantic SLAM fusion
Creators: name: Roch, Jesse
Publisher: name: University of British Columbia
Year: 2022

description: Recent developments in deep learning techniques have accelerated the growth of robotic vision systems for many applications. This thesis examines several object detection algorithms that can be combined with simultaneous localization and mapping (SLAM) to produce an annotated 3D map of the local environment. After the initial review, Deep Object Pose Estimation (DOPE) is examined further and modified to enable object recognition using a depth map as input. This modification allows for shape-based object recognition in low visibility conditions such as darkness or camouflage. The method starts with a dual threshold to isolate a detection window followed by median and sharpness filtering to reduce the noise in the depth map. Moreover, a novel method to quantify the uncertainty of predictions is used to evaluate a threshold applied to key points used to enhance precision of the algorithm. Precision of the method surpasses the baseline across all frame rates tested. The method maintains high precision when the depth of the convolution neural network is reduced from 86 layers to 21 layers promoting an increase in frame rate from 8.6 Hz to 22.6 Hz. Additionally, five datasets are tested to determine the optimal size that should be used for training. Results show that 100k images is ideal, achieving the highest position accuracy of 96.8%, and that overfitting becomes apparent above 300k images as accuracy starts to drop. Finally, DOPE is combined with Real-Time Appearance-Based Mapping (RTAB-Map) and the enhanced precision method is compared against the original version to evaluate object placement on the map generated by SLAM. The original version yields an average error of 79.8 cm distance from the ground truth compared to 30.5 cm using the proposed method.