cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Front Matter, Table of Contents, Foreword, Conference Organization, External Reviewers, Authors
Creators: name: Müller, Peter
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2017
Subjects: subject: Programming Techniques
subject: Software Engineering

description: Front Matter, Table of Contents, Foreword, Conference Organization, External Reviewers, Authors
description: LIPIcs, Vol. 74, 31st European Conference on Object-Oriented Programming (ECOOP 2017), pages 0:i-0:xxvi
ESMO 2019 - Wildfires Impact - Prevention Through Monitoring - Latest Technology
Creators: Bill Chiu
Gary Huffman
Publisher: name: IEEE
Year: 2019

Technical Session
The panelists will report on the challenges faced due to wildfires affecting power lines. Topics will include new technologies available or under development. New ideas and technologies that monitor specific areas and weather to aid operators in scheduling and switching will be on the agenda for discussion. System protection and smart line developments to protect power lines and avoid damages and unscheduled outages. Right of Way maintenance and vegetation monitoring and control will be also be on the agenda for discussion
Nonassociative geometry of nonholonomic phase spaces with star R-flux string deformations and (non) symmetric metrics
Creators: name: Vacaru, Sergiu I.
name: Veliev, Elşeb Veli
name: Bubuianu, Laurenţiu
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Physics (physics.gen-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We elaborate on nonassociative differential geometry of phase spaces endowed with nonholonomic (non-integrable) distributions and frames, nonlinear and linear connections, symmetric and nonsymmetric metrics, and correspondingly adapted quasi-Hopf algebra structures. The approach is based on the concept of nonassociative star product introduced for describing closed strings moving in a constant R-flux background. Generalized Moyal-Weyl deformations are considered when, for nonassociative and noncommutative terms of star deformations, there are used nonholonomic frames (bases) instead of local partial derivatives. In such modified nonassociative and nonholonomic spacetimes and associated complex/ real phase spaces, the coefficients of geometric and physical objects depend both on base spacetime coordinates and conventional (co) fiber velocity/ momentum variables like in (non) commutative Finsler-Lagrange-Hamilton geometry. For nonassociative and (non) commutative phase spaces modelled as total spaces of (co) tangent bundles on Lorentz manifolds enabled with star products and nonholonomic frames, we consider associated nonlinear connection, N-connection, structures determining conventional horizontal and (co) vertical (for instance, 4+4) splitting of dimensions and N-adapted decompositions of fundamental geometric objects. There are defined and computed in abstract geometric and N-adapted coefficient forms the torsion, curvature and Ricci tensors. We extend certain methods of nonholonomic geometry in order to construct R-flux deformations of vacuum Einstein equations for the case of N-adapted linear connections and symmetric and nonsymmetric metric structures.
description: latex2e, 69 pages, v2 with small typos corrections and updated reference comparing to v1, dated March 12, 2021, arXiv:submit/3646719 [math-ph]
Distributional solutions to the Maxwell-Vlasov equations
Creators: name: Gratus, Jonathan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The distributional form of the Maxwell-Vlasov equations are formulated. Submanifold distributions are analysed and the general submanifold distributional solutions to the Vlasov equations are given. The properties required so that these solutions can be a distributional source to Maxwell's equations are analysed and it is shown that a sufficient condition is that spacetime be globally hyperbolic. The cold fluid, multicurrent and water bag models of charge are shown to be particular cases of the distributional Maxwell-Vlasov system.
description: 31 pages, 3 figures
Semi-Supervised Visual Representation Learning for Fashion Compatibility
Creators: name: Revanur, Ambareesh
name: Kumar, Vijay
name: Sharma, Deepthi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We consider the problem of complementary fashion prediction. Existing approaches focus on learning an embedding space where fashion items from different categories that are visually compatible are closer to each other. However, creating such labeled outfits is intensive and also not feasible to generate all possible outfit combinations, especially with large fashion catalogs. In this work, we propose a semi-supervised learning approach where we leverage large unlabeled fashion corpus to create pseudo-positive and pseudo-negative outfits on the fly during training. For each labeled outfit in a training batch, we obtain a pseudo-outfit by matching each item in the labeled outfit with unlabeled items. Additionally, we introduce consistency regularization to ensure that representation of the original images and their transformations are consistent to implicitly incorporate colour and other important attributes through self-supervision. We conduct extensive experiments on Polyvore, Polyvore-D and our newly created large-scale Fashion Outfits datasets, and show that our approach with only a fraction of labeled examples performs on-par with completely supervised methods.
description: ACM RecSys'21 (9 pages) DOI: https://dl.acm.org/doi/10.1145/3460231.3474233
ESMO 2019 - MAD - How to Apply and Reduce
Creators: Steve Zubiri
Tom Verdecchio
Brian Erga
Kris Buchholz
Publisher: name: IEEE
Year: 2019

Technical Session
ESMOL Subcommittee is currently working on a paper to present practical approaches to Minimum Approach Distances (MAD) for transmission line work. This paper has been in the development stage and will be published soon; however, we would like to show you what you will see in this paper that should help you apply MAD to different work situations. Included in this paper are many drawings on what MAD distances must be considered when developing work procedures or applying work procedures to your specific line structure configuration. In addition, ESMOL is developing a second paper for the application of MAD to distribution work procedures, thus we will be showing you drawings that will be included showing various MAD distribution applications We are also looking forward to the Q&A portion of this session to gather your feedback and any additional items that should be included in the final version of both papers.
title: The production of the Anglo-Saxon laws : from Alfred to Cnut
Creators: name: Ivarsen, Ingrid
Publisher: name: University of St Andrews
Year: 2020

description: This thesis examines the production of written law in Anglo-Saxon England by asking some basic questions. What is ‘an Anglo-Saxon law’? Where and when were surviving laws made? Who wrote them? What characterizes the laws as texts? These questions are answered using the laws’ language, text and form as evidence. In the first part of the thesis, I argue that the modern idea of what makes ‘an Anglo-Saxon law’ is adopted from editions, specifically Felix Liebermann’s 1903 Die Gesetze der Angelsachsen. I show that the corpus presented in this edition is not just a product of Liebermann’s own political, academic and legal contexts, but also those of his editorial predecessors. By relying on such a corpus we have constructed our view of Anglo-Saxon law and legislation on unstable foundations. Therefore, I offer a new corpus of laws and set out the criteria for texts’ inclusion. I also propose a new way in which to categorize surviving legislation, arguing that there are two main categories: law codes and decrees. The second half of the thesis examines the production of the texts belonging to each of these categories. A key finding is that not all laws were produced in the same way. Some texts fit into the traditional model for the production of legislation, namely that it was done in relation to meetings between the king and witan. Some surviving texts may even be records of oral assembly proceedings. However, other texts appear to have been produced outwith an assembly context, including some that must have been made through long processes of research, compilation and juridical thinking. The evidence provided by language, text and form thus suggests that the production of Anglo-Saxon law was flexible and that the relationship between writing and law was complex and varied.
New very massive stars in Cygnus OB2
Creators: name: Negueruela, Ignacio
name: Marco, Amparo
name: Herrero, Artemio
name: Clark, Simon
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The compact association Cygnus OB2 is known to contain a large population of massive stars, but its total mass is currently a matter of debate. While recent surveys have uncovered large numbers of OB stars in the area around Cyg OB2, detailed study of the optically brightest among them suggests that most are not part of the association. We observed an additional sample of optically faint OB star candidates, with the aim of checking if more obscured candidates are correspondingly more likely to be members of Cyg OB2. Low resolution spectra of 9 objects allow the rejection of one foreground star and the selection of four O-type stars, which were later observed at higher resolution. In a subsequent run, we observed three more stars in the classification region and three other stars in the far red. We identify five (perhaps six) new evolved very massive stars and three main sequence O-type stars, all of which are likely to be members of Cyg OB2. The new findings allow a much better definition of the upper HR diagram, suggesting an age ~2.5Myr for the association and hinting that the O3-5 supergiants in the association are blue stragglers, either younger or following a different evolutionary path from other cluster members. Though the bulk of the early stars seems to belong to an (approximately) single-age population, there is ample evidence for the presence of somewhat older stars at the same distance. Our results suggest that, even though Cyg OB2 is unlikely to contain as many as 100 O-type stars, it is indeed substantially more massive than was thought prior to recent infrared surveys.
description: Accepted for publication in Astronomy & Astrophysics (Jun 13th). One long table will appear only in electronic format. Figure 8 will be published electronically and appears with reduced quality
Comparing the spatial and kinematic distribution of gas and young stars around the shell-like structure in the CMa OB1 association
Creators: name: Gregorio-Hetem, Jane
name: Lefloch, Bertrand
name: Hetem, Annibal
name: Montmerle, Thierry
name: Fernandes, Beatriz
name: Mendoza, Edgar F.
name: De Simone, Marta
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The relationship between young stellar clusters and respective parental molecular clouds is still an open issue: for instance, are the similarities between substructures of clouds and clusters just a coincidence? Or would they be the indication of a physical relationship? In order to address these issues, we have studied the CMa OB1/R1 region that shows evidence for a complex star formation history. We obtained molecular clouds mapping with the IRAM-30 metre telescope to reveal the physical conditions of an unexplored side of the CMa region aiming to compare the morphology of the clouds with the distribution of the young stellar objects (YSOs). We also study the clouds kinematics searching for gradients and jet signatures that could trace different star formation scenarios. The YSOs were selected on the basis of astrometric data from Gaia EDR3 that characterise the moving groups. The distance of 1099$_{-24}^{+25}$ pc was obtained for the sample, based on the mean error-weighted parallax. Optical and near-infrared photometry is used to verify the evolutionary status and circumstellar characteristics of the YSOs. Among the selected candidates we found 40 members associated with the cloud: 1 Class I, 11 Class II, and 28 Class III objects. Comparing the spatial distribution of the stellar population with the cores revealed by the 13CO map, we verify that peaks of emission coincide with the position of YSOs confirming the association of these objects to their dense natal gas. Our observations support the large-scale scenario of the CMa shell-like structure formed as a relic of successive supernova events.
description: A&A (accepted): 11 pages with 8 figures and 4 Tables
A survey of the data administration function in large Canadian organizations
Creators: name: McCririck, Ian Bryce
Publisher: name: University of British Columbia
Year: 2010

description: The object of this study was to survey large Canadian organizations in order to: 1) determine the extent to which these organizations have established a separate Data Administration function, 2) empirically test Nolan's Stage Model of EDP Growth as a predictor of a separate Data Administration function, and 3) survey the characteristics of the Data Administration function in those organizations that have formally established such a speciality. A survey package containing two questionnaires was sent to 555 large Canadian organizations in the private and public sectors. The "EDP Profile Questionnaire" was directed to the Manager of the EDP Activity in the surveyed organizations. This questionnaire is concerned with the EDP growth process and the existence of a Data Administrator. The "Data Administration Questionnaire" was directed to the Data Administrator in the surveyed organizations. This questionnaire is concerned with the characteristics and responsibilities of the Data Administration function. Analysis was performed on 254 EDP functions and 69 Data Administration functions. The results obtained indicate that the Data Administration function is not prevalent in large Canadian organizations; where the function does exist its role is a fairly minor one within the EDP activity. This study found that organizations with very large EDP activities and many years of experience with computers were more likely to have established a Data Administration function than-smaller and less experienced ones. Certain organizational types (those with discretionary funds available) were more likely, to have a Data Administration function than other types. The "maturity" of the organization's EDP activity was not found to be- a good predictor of the existence of a Data Administrator. The sampled Data Administration functions exhibited a wide dispersion in both the activities performed and the amount of time spent on each. Few policy setting activities were performed by the Data Administrators. The Data Administration function appeared to be focused on those "data bases" using a Data Base Management System. Organizational conflicts and a general misunderstanding of the function by EDP Management have likely held back the development of the function beyond one involved primarily with the support of DBMS application systems. Future research should be directed at- understanding these conflicts and misperceptions through an analysis of the decision process involved in establishing the Data Administration function. An attempt- should be made to more fully understand the data resource and how it might differ among organizational types. Before further use is made of Nolan's Stage Growth model, serious thought should be given to determining in more precise terms what the EDP growth process variables are and how they might best be measured.
Cyber-Physical Systems Security for the Power Grid: Methodologies, Metrics and Tools
Creators: C. Liu
P. Sauer
G. Johnson
Publisher: name: IEEE
Year: 2018

2018 PES GM Panel Presentation
Modern electric power grid is a complex cyber-physical critical infrastructure that forms the lifeline of our society, its reliable and secure operation is of paramount importance to national security and economic well-being. In recent years, cyber threats to the power grid has been increasing both in numbers and sophistication, including two attacks on Ukrainian power grid (2015, 2016) and several attack attempts
targeted towards energy infrastructures in US and several European countries in the summer of 2017. In this context, there is a growing need to develop pragmatic methodologies, metrics, and tools to systematically understand the cyber threats, attacks, and consequences that will be utilized to develop risk assessment, risk mitigation algorithms including attack prevention, anomaly detection, and attackresilient
control algorithms. This panel will bring international experts both from academia and industry/government laboratories to have a broad discussion on the various methodologies, metrics, and tools that are beneficial to the stakeholders. The experts will also share their experiences via case studies. The panel will be beneficial to broad audience coming from academic, industry, and government
laboratories.
The fate of a gravitational wave in de Sitter spacetime
Creators: name: Nowakowski, M.
name: Arraut, I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: If we want to explain the recently discovered accelerated stage of the universe, one of the option we have is to modify the Einstein tensor. The simplest such modification, in agreement with all observations, is the positive cosmological constant $Λ$. Such a modification will also have its impact on local observables and on the propagation of weak gravitational waves. We show here that the inclusion of a cosmological constant impedes the detection of a gravitational wave if the latter is produced at a distance larger than ${\cal L}_{\rm crit}=(6\sqrt{2}πf \hat{h}/\sqrt{5})r_Λ^2$ where $r_Λ=1/\sqrtΛ$ and $f$ and $\hat{h}$ are the frequency and the strain of the wave, respectively. ${\cal L}_{\rm crit}$ is of astrophysical order of magnitude. We interpret the result in the sense that the gravitational wave interpretation is only possible if the characteristic wave properties are smaller than the non-oscillatory solution due to $Λ$.
description: 17 pages, LaTex
Recent Developments in Data and Information Exchange to Enable Enhanced TSO-DSO Interaction
Creators: F. Gomez
O. Macchione
J. Restrepo
Publisher: name: IEEE
Year: 2018

2018 PES GM Panel Presentation
This panel will discuss the thinking behind recent HVDC and FACTS refurbishments, new installations, and the opportunities presented by new controls and innovative uses of limited rights-of-way. The panel will address the economic reasons for HVDC and FACTS facilities and controls that can provide practical lessons learned.
Exact results for Casimir interactions between dielectric bodies: The weak-coupling or van der Waals Limit
Creators: name: Milton, Kimball A.
name: Parashar, Prachi
name: Wagner, Jef
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In earlier papers we have applied multiple scattering techniques to calculate Casimir forces due to scalar fields between different bodies described by delta function potentials. When the coupling to the potentials became weak, closed-form results were obtained. We simplify this weak-coupling technique and apply it to the case of tenuous dielectric bodies, in which case the method involves the summation of van der Waals (Casimir-Polder) interactions. Once again exact results for finite bodies can be obtained. We present closed formulas describing the interaction between spheres and between cylinders, and between an infinite plate and a retangular slab of finite size. For such a slab, we consider the torque acting on it, and find non-trivial equilibrium points can occur.
description: 4 pages, 3 figures
MIGHTEE-HI: Discovery of an HI-rich galaxy group at z = 0.044 with MeerKAT
Creators: name: Ranchod, Shilpa
name: Deane, Roger P.
name: Ponomareva, Anastasia A.
name: Blecher, Tariq
name: Frank, Bradley S.
name: Jarvis, Matt J.
name: Maddox, Natasha
name: Mulaudzi, Wanga
name: Glowacki, Marcin
name: Hess, Kelley M.
name: Tudorache, Madalina
name: Verdes-Montenegro, Lourdes
name: Adams, Nathan J.
name: Bowler, Rebecca A. A.
name: Collier, Jordan D.
name: Taylor, Russ
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the serendipitous discovery of a galaxy group in the XMM-LSS field with MIGHTEE Early Science observations. Twenty galaxies are detected in HI in this $z\sim0.044$ group, with a $3σ$ column density sensitivity of $N_\mathrm{HI} = 1.6\times10^{20}\,\mathrm{cm}^{-2}$. This group has not been previously identified, despite residing in a well-studied extragalactic legacy field. We present spatially-resolved HI total intensity and velocity maps for each of the objects, which reveal environmental influence through disturbed morphologies. The group has a dynamical mass of $\log_{10}(M_\mathrm{dyn}/\mathrm{M}_\odot) = 12.32$, and is unusually gas-rich, with an HI-to-stellar mass ratio of $\log_{10}(f_\mathrm{HI}^\mathrm{*}) = -0.2$, which is 0.7 dex greater than expected. The group's high HI content, spatial, velocity, and identified galaxy type distributions strongly suggest that it is in the early stages of its assembly. The discovery of this galaxy group is an example of the importance of mapping spatially-resolved HI in a wide range of environments, including galaxy groups. This scientific goal has been dramatically enhanced by the high sensitivity, large field-of-view, and wide instantaneous bandwidth of the MeerKAT telescope.
description: 13 pages, 6 figures, accepted for publication in MNRAS
Infrared to terahertz optical conductivity of $n$-type and $p$-type monolayer MoS$_2$ in the presence of Rashba spin-orbit coupling
Creators: name: Xiao, Y. M.
name: Xu, W.
name: Van Duppen, B.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the effect of Rashba spin-orbit coupling (SOC) on the optoelectronic properties of n- and p-type monolayer MoS2. The optical conductivity is calculated within the Kubo formalism. We find that the spin-flip transitions enabled by the Rashba SOC result in a wide absorption window in the optical spectrum. Furthermore, we evaluate the effects of the polarization direction of the radiation, temperature, carrier density, and the strength of the Rashba spin-orbit parameter on the optical conductivity. We find that the position, width, and shape of the absorption peak or absorption window can be tuned by varying these parameters. This study shows that monolayer MoS2 can be a promising tunable optical and optoelectronic material that is active in the infrared to terahertz spectral range.
Modelling of Inverter-Based Generators in Transmission and Distribution Dynamic Studies
Creators: K. Yamashita
L. Ospina
P. Pourbeik
J. Boemer
D. Ramasubramanian
S. Itani
Publisher: name: IEEE
Year: 2018

2018 PES T&D Panel Presentation
Any model has its limitation. The type of the model to be selected and the model components to be implemented can vary depending on the type of system dynamics/ phenomena to be studied. This panel session provides a guideline how to model inverter-based generators for various power system dynamic studies introducing the latest outcome from CIGRE C4-C6.35/CIRED JWG.
CdSe quantum dots in ZnSe nanowires as efficient source for single photons up to 220 K
Creators: name: Aichele, Thomas
name: Tribu, Adrien
name: Sallen, Gregory
name: Bocquel, Juanita
name: Bellet-Amalric, Edith
name: Bougerol, Catherine
name: Poizat, Jean-Philippe
name: Kheng, Kuntheak
name: André, Régis
name: Tatarenko, Serge
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: ZnSe nanowire heterostructures were grown by molecular beam epitaxy in the vapour-liquid-solid growth mode assisted by gold catalysts. Size, shape and crystal structure are found to strongly depend on the growth conditions. Both, zinc-blende and wurtzite crystal structures are observed using transmission electron microscopy. At low growth temperature, cone-shaped nano-needles are formed. For higher growth temperature, the nanowires are uniform and have a high aspect ratio with sizes of 1-2 $μ$m in length and 20-50 nm in width as observed by scanning electron microscopy. Growing a nanowire on top of a nano-needle allows us to obtain very narrow nanorods with a diameter less than 10 nm and a low density of stacking fault defects. These results allow us the insertion of CdSe quantum dots in a ZnSe nanowire. An effcient photon anti-bunching was observed up to 220 K, demonstrating a high-temperature single-photon source.
Transactive Approaches to Integration of Flexible Demand and Distributed Generation: Highlights from the TPWRS Special Section
Creators: T. Morstyn
L. Tesfatsion
M. Nazir
Publisher: name: IEEE
Year: 2018

2018 PES GM Panel Presentation
This panel presents a number of selected papers submitted to the forthcoming special section on Transactive Energy in the Transactions on Power Systems. This panel will bring together researchers and practitioners from industry, research laboratories and academia to present and discuss challenges and opportunities related to market-based and transactive approaches to the integration of flexible demand and distributed generation and storage. In the future grid, demand response and response from distributed generation and storage is expected to be used on a large scale to perform active management of distribution grids and to balance the fluctuating power generation of renewable power generation. Key elements of the smart grid vision are the coordination mechanisms. Through these, vast numbers of devices, currently just passively connected to the grid, will become actively involved in system-wide and local coordination tasks. In this light, market-based, transactive approaches are emerging as strong contenders for orchestrating the coordinated operation of so many devices. In a transactive energy system, one is using value as a key operational parameter, i.e. operational decisions are made through an exchange of value-based information captured in transactions between participants. Whereas transactive or market-based coordination mechanisms are already used on the level of bulk power production, trade and transmission across the globe, the use of these mechanisms at the distribution level, integrating numerous flexible devices into the power system, is still a topic needing scientific advancement. Research into transactive energy is strongly interdisciplinary, involving the state of the art in power engineering, computer science, (micro-) economics and control engineering.
ESMO 2019 - Physical Security of the Grid and Substation
Creators: Keith Lindsey
Kerry Cheung
Jeff Fleeman
Thomas Propts
Tim Stelljes
Publisher: name: IEEE
Year: 2019

Technical Session
Dominion began planning an aggressive substation security program. Developing a comprehensive and successful resiliency strategy requires looking at the big picture. Resiliency planning is something Dominion had been doing for years in the wake of Hurricane Isabel, but the Metcalf attack precipitated the utilitys development of a multifaceted approach to securing its substations. To the outside observer, Dominions substation security program may appear to be just hardened perimeter fences. However, the scope of the plan goes much deeper. When it comes to substation security, there is no panacea or one-size-fits-all solution that works for every utility owner or operator. The correct security solution will vary from state to state or region to region. This point is emphasized by the structure of the new North American Electric Reliability Corporation (NERC) CIP-014 standard on security for critical substations.
Miscellaneous 4/18 Panel Sessions
Creators: Z. Wang
S. Widergren
P. Faria
Z. Vale
Publisher: name: IEEE
Year: 2018

2018 PES T&D Panel Presentation
This file contains presentations from the following 4/18 (Wednesday) panel sessions: PS23 - Distributed Computing and Multi-Agent Systems Applications in Smart Grid and PS29 - Catching Consumers and Distributed Generation flexibility to improve demand response
Primality test and primes enumeration using odd numbers indexation
Creators: name: Wolf, Marc
name: Wolf, François
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 68P05

description: Odd numbers can be indexed by the map k(n)=(n-3)/2, n belonging to 2N+3. We first propose a basic primality test using this index function that was first introduced in article (8). Input size of operations is reduced which improves computational time by a constant. We then apply similar techniques to Atkin prime-numbers sieve which uses modulus operations and finally to Pritchard wheel sieve, in both case yielding similar results.
description: 32 pages
title: Front Matter, Table of Contents, Preface, Conference Organization, External Reviewers
Creators: name: Iliopoulos, Costas S.
name: Pissis, Solon P.
name: Puglisi, Simon J.
name: Raman, Rajeev
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2017
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Conference Organization
subject: External Reviewers

description: Front Matter, Table of Contents, Preface, Conference Organization, External Reviewers
description: LIPIcs, Vol. 75, 16th International Symposium on Experimental Algorithms (SEA 2017), pages 0:i-0:xiv
PV in Grid Friendly Services
Creators: A. Huang
E. Shoubaki
M. Lelic
M. Baggu
Publisher: name: IEEE
Year: 2018

2018 PES GM Panel Presentation
As grid-tied solar photovoltaics become more affordable, the installed capacity has increased to nearly 40 gigawatts in the US alone.  Even though this amount is still a small percentage of the current overall electricity supply, some are projecting it to grow to about 10% in just over a decade.  The increasing solar energy penetration is now adversely impacting grid operations in certain parts of the country where variable energy-based electricity production is a sizable part of the overall mix.  Ramping conditions, intermittency, lack of inertia, and the overall uncertainty involved in uncontrolled solar power generations are forcing grid operators to take different countermeasure to continue to operate in its presence.
Some of those countermeasures can be expensive propositions.  These conditions have led to calls for more grid-friendly operation of solar power plants in the form of virtual power plants.  Such grid friendly services could include voltage and frequency support, synthetic inertia, etc.  This panel will look into the various ways a solar PV farm can be integrated with minimal adverse impact on operations.
PERCEPTION OF FOLKLORE IN THE MODERN SOCIO-CULTURAL ENVIRONMENT
Creators: name: Akhmedova, Madinabonu
Publisher: name: Zenodo
Year: 2023

description: folklore seems to be one of the most effective phenomena of modern culture, experiencing certain moments of crisis in its existence due to cultural deviations. The author understands the transformation of folklore as a process and the result of purposeful actions to rethink its significance in modern conditions.
Linear-T resistivity and change in Fermi surface at the pseudogap critical point of a high-Tc superconductor
Creators: name: Daou, R.
name: LeBoeuf, David
name: Doiron-Leyraud, Nicolas
name: Li, S. Y.
name: Laliberte, Francis
name: Cyr-Choiniere, Olivier
name: Jo, Y. J.
name: Balicas, L.
name: Yan, J. -Q.
name: Zhou, J. -S.
name: Goodenough, J. B.
name: Taillefer, Louis
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A fundamental question of high-temperature superconductors is the nature of the pseudogap phase which lies between the Mott insulator at zero doping and the Fermi liquid at high doping p. Here we report on the behaviour of charge carriers near the zero-temperature onset of that phase, namely at the critical doping p* where the pseudogap temperature T* goes to zero, accessed by investigating a material in which superconductivity can be fully suppressed by a steady magnetic field. Just below p*, the normal-state resistivity and Hall coefficient of La1.6-xNd0.4SrxCuO4 are found to rise simultaneously as the temperature drops below T*, revealing a change in the Fermi surface with a large associated drop in conductivity. At p*, the resistivity shows a linear temperature dependence as T goes to zero, a typical signature of a quantum critical point. These findings impose new constraints on the mechanisms responsible for inelastic scattering and Fermi surface transformation in theories of the pseudogap phase.
description: 24 pages, 6 figures. Published in Nature Physics. Online at http://www.nature.com/nphys/journal/vaop/ncurrent/full/nphys1109.html
Recent Violent System Upsets and Lessons Learned – Part II
Creators: J. Boemer
N. Miller
R. Quint
M. Morjaria
Publisher: name: IEEE
Year: 2018

2018 PES GM Panel Presentation
The response of inverter-based wind and solar generation to recent system disturbances around the world has included unexpected and occasionally severe disruption of supply. Reliability concerns have been raised due to protection and control functions that have resulted in inverter-based generation tripping or ride-through in momentary cessation (aka "blocking") in response to single and multiple grid faults.
ESMO 2019 - Late Breaking Technologies
Creators: Wayne Bishop Jr.
Jean Marie George
John Parks
Chris Root
Jack McCall
Brady Hansen
Publisher: name: IEEE
Year: 2019

Technical Session
We are seeing an incredible array of innovative tools and technologies making their way to the field.

Many are digitally enabled. In this session you will see devices and systems that enable maintenance and construction work in the field to proceed with enhanced productivity and increased safety.
Stability of Distant Satellites of Giant Planets in the Solar System
Creators: name: Shen, Yue
name: Tremaine, Scott
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We conduct a systematic survey of the regions in which distant satellites can orbit stably around the four giant planets in the solar system, using orbital integrations of up to $10^9$ yr. In contrast to previous investigations, we use a grid of initial conditions on a surface of section to explore phase space uniformly inside and outside the planet's Hill sphere (radius $r_{\rm H}$; satellites outside the Hill sphere sometimes are also known as quasi-satellites). Our confirmations and extensions of old results and new findings include the following: (i) many prograde and retrograde satellites can survive out to radii $\sim 0.5r_{\rm H}$ and $\sim 0.7r_{\rm H}$, respectively, while some coplanar retrograde satellites of Jupiter and Neptune can survive out to $\sim r_{\rm H}$; (ii) stable orbits do not exist within the Hill sphere at high ecliptic inclinations when the semi-major axis is large enough that the solar tide is the dominant non-Keplerian perturbation; (iii) there is a gap between $\sim r_{\rm H}$ and $2r_{\rm H}$ in which no stable orbits exist; (iv) at distances $\gtrsim 2r_{\rm H}$ stable satellite orbits exist around Jupiter, Uranus and Neptune (but not Saturn). For Uranus and Neptune, in particular, stable orbits are found at distances as large as $\sim 10r_{\rm H}$; (v) the differences in the stable zones beyond the Hill sphere arise mainly from differences in the planet/Sun mass ratio and perturbations from other planets; in particular, the absence of stable satellites around Saturn is mainly due to perturbations from Jupiter. It is therefore likely that satellites at distances $\gtrsim 2r_{\rm H}$ could survive for the lifetime of the solar system around Uranus, Neptune, and perhaps Jupiter.
description: AJ in press; updated discussion and references
Bonding behaviour in newly married couples
Creators: name: Delisle, Mary Ann
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of the study was to conceptualize the construct, "bonding behaviour", and to develop a preliminary inventory to measure the concept in newly married couples. The study was conducted with thirty couples, married less' than one year. The subjects were tested once, with a questionnaire completed in the presence of the researcher. A standardized marital satisfaction inventory I.M.S.: (Hudson/ Glisson 1976) was completed immediately after the questionnaire. The study involved four variables - care, intimacy, trust, and communication - each of which was inter-correlated, and correlated with the I.M.S. The study included demographic items which were correlated with the study variables and with the I.M.S. The findings indicate that the four variables exist separately to some extent, but clearly tend to overlap. The majority of the items correlate significantly with a cluster of the four variables, and suggests that they may measure one construct which could be relabelled bonding. The four variables are highly significant in their correlations with the I.M.S., and show that the variables are an indication of marital satisfaction. Generally, the findings supported the research premise that bonding is affected by family relationships and attachments, that it involves personal competence, and that it is present in the first year of marriage. The study suggests implications for further research, including a follow-up study. Since this research used a convenience sample, of utmost concern is a replication of the study, on a random sample. The study cited relevance for practice in single case exploration, and for social policy in preparation for marriage programs.
Next Generation of Control Center EMS
Creators: M. Patel
M. Zhou
X. Lin
Q. Zhang
Publisher: name: IEEE
Year: 2018

2018 PES GM Panel Presentation
The nation's grid faces significant transformation in supply, demand, consumer expectations, and markets. The new technologies in data management, communication systems and Big Data analytics are driving the development of next-generation EMS control center, which will transform the future power grid into a fully integrated, highly resilient, suitable paradigm. This panel will bring experts together to discuss the road map for the future EMS system, its architecture and function design, and latest development to bring new technologies into the control centers.
Extremely metal-poor stars from the SDSS
Creators: name: Ludwig, H. -G.
name: Bonifacio, P.
name: Caffau, E.
name: Behara, N. T.
name: Hernandez, J. I. Gonzalez
name: Sbordone, L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We give a progress report about the activities within the CIFIST Team related to the search for extremely metal-poor stars in the Sloan Digital Sky Survey's spectroscopic catalog. So far the search has provided 25 candidates with metallicities around or smaller -3. For 15 candidates high resolution spectroscopy with UVES at the VLT has confirmed their extremely metal-poor status. Work is under way to extend the search to the SDSS's photometric catalog by augmenting the SDSS photometry, and by gauging the capabilities of X-shooter when going to significantly fainter targets.
description: 6 pages, 6 figures, Proceedings paper of the conference "A stellar journey: A symposium in celebration of Bengt Gustafsson's 65th birthday"
Urdu text in natural scene images: a new dataset and preliminary text detection
Creators: name: Ali, Hazrat
name: Iqbal, Khalid
name: Mujtaba, Ghulam
name: Fayyaz, Ahmad
name: Bulbul, Mohammad Farhad
name: Karam, Fazal Wahab
name: Zahir, Ali
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Text detection in natural scene images for content analysis is an interesting task. The research community has seen some great developments for English/Mandarin text detection. However, Urdu text extraction in natural scene images is a task not well addressed. In this work, firstly, a new dataset is introduced for Urdu text in natural scene images. The dataset comprises of 500 standalone images acquired from real scenes. Secondly, the channel enhanced Maximally Stable Extremal Region (MSER) method is applied to extract Urdu text regions as candidates in an image. Two-stage filtering mechanism is applied to eliminate non-candidate regions. In the first stage, text and noise are classified based on their geometric properties. In the second stage, a support vector machine classifier is trained to discard non-text candidate regions. After this, text candidate regions are linked using centroid-based vertical and horizontal distances. Text lines are further analyzed by a different classifier based on HOG features to remove non-text regions. Extensive experimentation is performed on the locally developed dataset to evaluate the performance. The experimental results show good performance on test set images. The dataset will be made available for research use. To the best of our knowledge, the work is the first of its kind for the Urdu language and would provide a good dataset for free research use and serve as a baseline performance on the task of Urdu text extraction.
Near Infrared Monitoring of Ultracool Dwarfs: Prospects for Searching for Transiting Companions
Creators: name: Blake, Cullen H.
name: Bloom, Joshua S.
name: Latham, David W.
name: Szentgyorgyi, Andrew H.
name: Skrutskie, Michael F.
name: Falco, Emilio E.
name: Starr, Dan S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Stars of late-M and L spectral types, collectively known as Ultracool Dwarfs (UCDs), may be excellent targets for searches for extrasolar planets. Owing to their small radii, the signal from an Earth-size planet transiting a UCD is, in principle, readily detectable. We present results from a study designed to evaluate the feasibility of using precise near infrared (NIR) photometry to detect terrestrial extrasolar planets orbiting UCDs. We used the Peters Automated InfRared Imaging TELescope (PAIRITEL) to observe a sample of 13 UCDs over a period of 10 months. We consider several important systematic effects in NIR differential photometry and develop techniques for generating photometry with a precision of 0.01 mag and long-term stability. We simulate the planet detection efficiency of an extended campaign to monitor a large sample of UCDs with PAIRITEL. We find that both a targeted campaign with a single telescope lasting several years and a campaign making use of a network of telescopes distributed in longitude could provide significant sensitivity to terrestrial planets orbiting UCDs, potentially in the habitable zone.
description: 22 pages, 5 figures, 3 tables. Accepted for publication in PASP
An Efficient Grid-Connected Three-Phase Single-Stage Boost Current Source Inverter
Creators: Akanksha Singh
Behrooz Mirafzal
Publisher: name: IEEE
Year: 2019

In this paper, the relationship between the fundamental component of the inverter output current and the PPWM modulation index is derived and then confirmed by simulation and experimentally obtained data in both stand-alone and grid-tied modes of operation.
The proposed three-phase boost Current Source Inverter (CSI) is equipped with Reverse-Blocking IGBTs (RB-IGBT) and the Phasor Pulse Width Modulation (PPWM) switching pattern to provide system efficiency greater than 92% and high boost ratios (VLL/Vdc) up to 3.5 in a single stage. The boost CSI results in elimination of dc-dc boost converter or a step-up transformer needed in dc-ac converters operating with a dc input voltage lower than the output line-to-line voltage. In this paper, the relationship between the fundamental component of the inverter output current and the PPWM modulation index is derived and then confirmed by simulation and experimentally obtained data in both stand-alone and grid-tied modes of operation. In this work, a 2 kW, 208 VLLrms, 60 � 120 Vdc RB-IGBT-based boost CSI is prototyped to explore capabilities of the grid-tied boost CSI in terms of efficiency and THD for various input dc voltage and output power levels.
Topology and Parameter Identification in Electric Power Distribution Systems
Creators: W. Luan
M. Lave
B. Foggo
Publisher: name: IEEE
Year: 2018

2018 PES GM Panel Presentation
To operate the distribution system in an efficient and reliable manner, the distribution system operators rely on a set of tools and applications including, power flow, state estimation, distribution network restoration and reconfiguration. All of these applications require an accurate distribution network and phase connectivity model. However, electric utility companies typically do not have accurate topology information. This panel will provide a forum to disseminate recent developments in data-driven topology and parameter identification technology in power distribution networks. The panelists from various research institutes will discuss algorithms to detect topology change and reconstruct the distribution network. The applications and algorithms will cover both primary and secondary feeders.
Testing long-term earthquake forecasts: likelihood methods and error diagrams
Creators: name: Kagan, Yan Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We propose a new method to test the effectiveness of a spatial point process forecast based on a log-likelihood score for predicted point density and the information gain for events that actually occurred in the test period. The method largely avoids simulation use and allows us to calculate the information score for each event or set of events as well as the standard error of each forecast. As the number of predicted events increases, the score distribution approaches the Gaussian law. The degree of its similarity to the Gaussian distribution can be measured by the computed coefficients of skewness and kurtosis. To display the forecasted point density and the point events, we use an event concentration diagram or a variant of the Error Diagram (ED). We demonstrate the application of the method by using our long-term forecast of seismicity in two western Pacific regions. We compare the ED for these regions with simplified diagrams based on two-segment approximations. Since the earthquakes in these regions are concentrated in narrow subduction belts, using the forecast density as a template or baseline for the ED is a more convenient display technique. We also show, using simulated event occurrence, that some proposed criteria for measuring forecast effectiveness at EDs would be strongly biased for a small event number.
description: 31 pages text, 3 tables, 10 figures