cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Development of a floe-ice breaking simulation for the generation of propeller–ice load spectra
title: Entwicklung einer Simulation für das Brechen von Eisschollen zum Erstellen eines Propeller-Eislast Spektrums
titleType: AlternativeTitle
Creators: name: Sapp, Lina
Publisher: name: TUHH Universitätsbibliothek
Year: 2023
Subjects: subject: ice floes
subject: propeller ice interaction
subject: simulation
subject: ice load
subject: ice breaking
subject: floe ice
classificationCode: 620
subject: Engineering

description: Within the scope of this work, an icebreaking simulation for floe ice is developed and implemented. The existing failure descriptions of local failure by bending and global failure by cracking as well as failure by direct rotation are extended by a newly described local failure by cracking. This combines the failure initiation of cracking with the fracture pattern of failure by bending. The simulation is validated for both the fracture forces at the bow and the generated breaking pattern by comparison with observations. Furthermore, the impact of different simulative as well as physical parameters on the model is investigated by a parameter study. The simulation can be applied to arbitrary ice floe fields in combination, in conjunction with the bow contour of different icebreaking vessels, to calculate the breaking pattern including the ice fragments that migrate under the bow. In this work, the PSRV S.A. Agulhas is primarily used, with additional comparative simulations for the RV Polarstern. Additionally, an algorithm is developed and applied to generate load and torque spectra based on the computed ice cusps from the icebreaking simulation. Finally, the generated torque spectrum is compared with field measurement data.
description: Im Rahmen dieser Arbeit wird eine Eisbruchsimulation für Scholleneis entwickelt und implementiert. Neben den bestehenden Beschreibungen des lokalen Versagens durch Biegung und des globalen Versagens durch Rissbildung sowie des Versagens durch direkte Rotation kommt eine hier neu entwickelte Beschreibung des Versagens durch lokale Rissbildung zur Anwendung. Diese kombiniert die Versagensauslösung durch Rissbildung mit dem Bruchverlauf des Versagens durch Biegung. Die Simulation wird sowohl für die Bruchkräfte am Bug als auch für das erzeugte Bruchmuster durch Vergleich mit Beobachtungen validiert. Weiterhin wird der Einfluss verschiedener simulativer wie physikalischer Parameter auf das Modell durch eine Parameterstudie untersucht. Die Simulation kann auf beliebige Eisschollenfelder in Kombination mit der Bugkontur verschiedener eisbrechender Schiffe angewandt werden, um das Bruchmuster einschließlich der Eisbruchstücke, die unter den Bug gezogen werden, zu berechnen. Die Simulationen in dieser Arbeit werden in erster Linie auf die PSRV S.A. Agulhas angewandt, mit zusätzlichen Vergleichssimulationen für die RV Polarstern. Darüber hinaus wird ein Algorithmus zur Erzeugung von Last- und Drehmomentspektren auf der Grundlage der berechneten Eisbruchstücke aus der Eisbruchsimulation entwickelt und angewandt. Abschließend wird das generierte Drehmomentspektrum mit Feldmessdaten verglichen.
Finite-time bounds on the probabilistic violation of the second law of thermodynamics
Creators: name: Miller, Harry J. D.
name: Perarnau-Llobet, Martí
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Jarzynski's equality sets a strong bound on the probability of violating the second law of thermodynamics by extracting work beyond the free energy difference. We derive finite-time refinements to this bound for driven systems in contact with a thermal Markovian environment, which can be expressed in terms of the geometric notion of thermodynamic length. We show that finite-time protocols converge to Jarzynski's bound at a rate slower than $1/\sqrtτ$, where $τ$ is the total time of the work-extraction protocol. Our result highlights a new application of minimal dissipation processes and demonstrates a connection between thermodynamic geometry and the higher order statistical properties of work.
description: 12 pages, 3 figures, comments welcome. v2 fixed typos and added some more remarks in discussion. Submission to SciPost
The targum (1934:Oct. 3 - 1934:Oct. 31)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1934

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
Standard candles from the Gaia perspective
Creators: name: Eyer, Laurent
name: Palaversa, Lovro
name: Mowlavi, Nami
name: Dubath, Pierre
name: Anderson, Richard I.
name: Evans, Dafydd W.
name: Lebzelter, Thomas
name: Ripepi, Vincenzo
name: Szabados, Laszlo
name: Leccia, Silvio
name: Clementini, Gisella
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The ESA Gaia mission will bring a new era to the domain of standard candles. Progresses in this domain will be achieved thanks to unprecedented astrometric precision, whole-sky coverage and the combination of photometric, spectrophotometric and spectroscopic measurements. The fundamental outcome of the mission will be the Gaia catalogue produced by the Gaia Data Analysis and Processing Consortium (DPAC), which will contain a variable source classification and specific properties for stars of specific variability types. We review what will be produced for Cepheids, RR Lyrae, Long Period Variable stars and eclipsing binaries.
description: 9 pages, 1 figure. Accepted for publication in Astrophysics and Space Science. Following a presentation at the conference The Fundamental Cosmic Distance Scale: State of the Art and the Gaia Perspective, Naples, May 2011
Blockchain Application on the Internet of Vehicles (IoV)
Creators: name: Aung, Nyothiri
name: Kechadi, Tahar
name: Zhu, Tao
name: Zerdoumi, Saber
name: Guerbouz, Tahar
name: Dhelim, Sahraoui
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: With the rapid development of the Internet of Things (IoT) and its potential integration with the traditional Vehicular Ad-Hoc Networks (VANETs), we have witnessed the emergence of the Internet of Vehicles (IoV), which promises to seamlessly integrate into smart transportation systems. However, the key characteristics of IoV, such as high-speed mobility and frequent disconnections make it difficult to manage its security and privacy. The Blockchain, as a distributed tamper-resistant ledge, has been proposed as an innovative solution that guarantees privacy-preserving yet secure schemes. In this paper, we review recent literature on the application of blockchain to IoV, in particular, and intelligent transportation systems in general.
The targum (1934:Dec. 8 - 1934:Dec. 12)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1934

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
D-COVRIN.2.1.1 Report on the established website protocol repository
Creators: name: INSA (36), ANSES (01) (Task/sub-task leaders)
name: All COVRIN Partners
Publisher: name: Zenodo
Year: 2021

description: JIP06-COVID19-COVRIN-WP2-T2.1 Genome analyses Deliverable D-COVRIN.2.1.1 - Report on the established website protocol repository ______________________________________________________________________ T2.1 leader: Vítor Borges (INSA, 36) ST2.1.1 leader: Maud Contrant (ANSES, 01) Task participants: All partners Partners contributing to the version v1 of the protocol repository: ANSES (01), APHA (21), FLI (10), INSA (36), IZSLER (29), IZSAM (28), PIWET (34), Sciensano (04), SVA (41), UoS (P23), WVBR (31). _______________________________________________________________________ This deliverable describes the activities and first outcomes of the first COVRIN WP2-T2.1 sub-task (ST2.1.1 - Protocol repository), which is focused on building a Next-generation sequencing (NGS)-related protocol repository.
Parabolic Type Equations and Markov Stochastic Processes on Adeles
Creators: name: Torba, Sergii M.
name: Zuniga-Galindo, W. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: Number Theory (math.NT)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35K90, 60J25 (Primary) 36S10, 35K08 (Secondary)

description: In this paper we study the Cauchy problem for new classes of parabolic type pseudodifferential equations over the rings of finite adeles and adeles. We show that the adelic topology is metrizable and give an explicit metric. We find explicit representations of the fundamental solutions (the heat kernels). These fundamental solutions are transition functions of Markov processes which are adelic analogues of the Archimedean Brownian motion. We show that the Cauchy problems for these equations are well-posed and find explicit representations of the evolution semigroup and formulas for the solutions of homogeneous and non-homogeneous equations.
description: 36 pages
Pore Pressure Measurement Instrumentation Response to Blasting
Creators: name: Larson-Robl, Kylie M.
Publisher: name: University of Kentucky
Year: 2016
Subjects: subject: Geotechnical Engineering
subject: Mining Engineering

description: Coal mine impoundment failures have been well documented to occur due to an increase in excess pore pressure from sustained monotonic loads. Very few failures have ever occurred from dynamic loading events, such as earthquakes, and research has been done regarding the stability of these impoundment structures under such natural seismic loading events. To date no failures or damage have been reported from dynamic loading events caused by near-by production blasting, however little research has been done considering these conditions. Taking into account that current environmental restrictions oblige to increase the capacity of coal impoundments, thus increasing the hazard of such structures, it is necessary to evaluate the effects of near-by blasting on the stability of the impoundment structures. To study the behavior of excess pore pressure under blasting conditions, scaled simulations of blasting events were set inside a controlled sand tank. Simulated blasts were duplicated in both saturated and unsaturated conditions. Explosive charges were detonated within the sand tank at various distances to simulate different scaled distances. Information was collected from geophones for dry and saturated scenarios and additionally from pressure sensors under saturated conditions to assess the behavior of the material under blasting conditions.
The targum (1935:Jan. 9 - 1935:Jan. 30)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1935

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
Exact results for intrinsic electronic transport in graphene
Creators: name: Hu, Shijie
name: Du, Wei
name: Zhang, Guiping
name: Gao, Miao
name: Lu, Zhong-Yi
name: Wang, Xiaoqun
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present exact results for the electronic transport properties of graphene sheets connected to two metallic electrodes. Our results, obtained by transfer-matrix methods, are valid for all sheet widths and lengths. In the limit of large width-to-length ratio relevant to recent experiments, we find a Dirac-point conductivity of $2e^2/\sqrt{3}h$ and a sub-Poissonian Fano factor of $2 - 3\sqrt{3}/π\simeq 0.346$ for armchair graphene; for the zigzag geometry these are respectively 0 and 1. Our results reflect essential effects from both the topology of graphene and the electronic structure of the leads, giving a complete microscopic understanding of the unique intrinsic transport in graphene.
description: 4 pages,4figures
Why Time Is An Evolutionary Given And Not Something That Sprouts Out Of The Big Bang
Creators: name: KINET Guido
Publisher: name: Zenodo
Year: 2016
Subjects: Time, evolution, big-bang, new insight, huge impact

description: why time is an evolutionary given and not something that sprouts out of the Big-Bang or whatever was the beginning of our universe.

The answer will have a huge impact on the way scientific thinking will shape the future.
Mutual friction and diffusion of two-dimensional quantum vortices
Creators: name: Mehdi, Zain
name: Hope, Joseph J.
name: Szigeti, Stuart S.
name: Bradley, Ashton S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a microscopic open quantum systems theory of thermally-damped vortex motion in oblate atomic superfluids that includes previously neglected energy-damping interactions between superfluid and thermal atoms. This mechanism couples strongly to vortex core motion and causes dissipation of vortex energy due to mutual friction, as well as Brownian motion of vortices due to thermal fluctuations. We derive an analytic expression for the dimensionless mutual friction coefficient that gives excellent quantitative agreement with experimentally measured values, without any fitted parameters. Our work closes an existing two orders of magnitude gap between dissipation theory and experiments, previously bridged by fitted parameters, and provides a microscopic origin for the mutual friction and diffusion of quantized vortices in two-dimensional atomic superfluids.
Molecular structure refinement by direct fitting of atomic coordinates to experimental ESR spectra
Creators: name: Charnock, G. T. P.
name: Krzystyniak, M.
name: Kuprov, Ilya
Publisher: name: arXiv
Year: 2011
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: An attempt is made to bypass spectral analysis and fit internal coordinates of radicals directly to experimental liquid- and solid-state electron spin resonance (ESR) spectra. We take advantage of the recently introduced large-scale spin dynamics simulation algorithms and of the fact that the accuracy of quantum mechanical calculations of ESR parameters has improved to the point of quantitative correctness. Partial solutions are offered to the local minimum problem in spectral fitting and to the problem of spin interaction parameters (hyperfine couplings, chemical shifts, etc.) being very sensitive to distortions in molecular geometry.
description: Submitted for publication
MPEC 2023-X25 : DAILY ORBIT UPDATE (2023 December 4)
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

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.
Twisted Sectors for Lagrangian Floer Theory on Symplectic Orbifolds
Creators: name: Chen, Bohui
name: Ono, Kaoru
name: Wang, Bai-Ling
Publisher: name: arXiv
Year: 2023
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: The notion of twisted sectors play a crucial role in orbifold Gromov-Witten theory. We introduce the notion of dihedral twisted sectors in order to construct Lagrangian Floer theory on symplectic orbifolds and discuss related issues.
description: In honour of Professor Jean-Pierre Bourguignon on the occasion of his 75th birthday
Transient dynamics of subradiance and superradiance in open optical ensembles
Creators: name: Lu, Elliot
name: Shanker, B.
name: Piermarocchi, Carlo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We introduce a computational Maxwell-Bloch framework for investigating out-of-equilibrium optical emitters in open systems. To do so, we compute the pulse-induced dynamics of each emitter from fundamental light-matter interactions and self-consistently calculate their radiative coupling, including phase inhomogeneity from propagation effects. This semiclassical framework is applied to open quantum dots systems with different densities and dipolar coupling. We observe signatures of superradiant behavior, such as directionality and faster decay, as well as subradiant emission. We compare and discuss the computed light emission obtained with our method and a Master equation approach. Our framework enables quantitative investigations of large optical ensembles in the time domain and could be used to design new systems with enhanced superradiant and subradiant properties.
description: 9 pages, 9 figures
Influence of static electric fields on an optical ion trap
Creators: name: Schneider, Christian
name: Enderlein, Martin
name: Huber, Thomas
name: Dürr, Stephan
name: Schaetz, Tobias
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We recently reported on a proof-of-principle experiment demonstrating optical trapping of an ion in a single-beam dipole trap superimposed by a static electric potential [Nat. Photonics 4, 772--775 (2010)]. Here, we first discuss the experimental procedures focussing on the influence and consequences of the static electric potential. These potentials can easily prevent successful optical trapping, if their configuration is not chosen carefully. Afterwards, we analyse the dipole trap experiments with different analytic models, in which different approximations are applied. According to these models the experimental results agree with recoil heating as the relevant heating effect. In addition, a Monte-Carlo simulation has been developed to refine the analysis. It reveals a large impact of the static electric potential on the dipole trap experiments in general. While it supports the results of the analytic models for the parameters used in the experiments, the analytic models cease their validity for significantly different parameters. Finally, we propose technical improvements for future realizations of experiments with optically trapped ions.
description: 16 pages, 16 figures
Blind Goal-Oriented Massive Access for Future Wireless Networks
Creators: name: Daei, Sajad
name: Kountouris, Marios
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Emerging communication networks are envisioned to support massive wireless connectivity of heterogeneous devices with sporadic traffic and diverse requirements in terms of latency, reliability, and bandwidth. Providing multiple access to an increasing number of uncoordinated users and sharing the limited resources become essential in this context. In this work, we revisit the random access (RA) problem and exploit the continuous angular group sparsity feature of wireless channels to propose a novel RA strategy that provides low latency, high reliability, and massive access with limited bandwidth resources in an all-in-one package. To this end, we first design a reconstruction-free goal-oriented optimization problem, which only preserves the angular information required to identify the active devices. To solve this, we propose an alternating direction method of multipliers (ADMM) and derive closed-form expressions for each ADMM step. Then, we design a clustering algorithm that assigns the users in specific groups from which we can identify active stationary devices by their angles. For mobile devices, we propose an alternating minimization algorithm to recover their data and their channel gains simultaneously, which allows us to identify active mobile users. Simulation results show significant performance gains in terms of active user detection and false alarm probabilities as compared to state-of-the-art RA schemes, even with limited number of preambles. Moreover, unlike prior work, the performance of the proposed blind goal-oriented massive access does not depend on the number of devices.
Brevicornu griseicolle Staeger 1840
Creators: name: El Mouden, Mohamed Amin
name: Chandler, Peter J.
name: Saidoun, Imane
name: Driauach, Ouafaa
name: Belqat, Boutaïna
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Mycetophilidae
Brevicornu
Brevicornu griseicolle

description: Brevicornu griseicolle Staeger, 1840
Material examined.
Morocco – Middle Atlas Region • 740 ♂♂; Gouffre Izora; 19/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/2457 • 161 ♂♂; Grotte Bouslama; 19/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/2458 • 1 ♂; Pont Ras Lma; 19/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/2459 • 6 ♂♂; Vallée des oiseaux; 19/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/2460 • 1 ♂; Forêt Bab Boudir; 20/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/2456 • 26 ♂♂; Grotte Bouhayati; 20/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/2461 • 2 ♂♂; Oued Aïn Chabab; 20/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/2462 • 2 ♂♂; Oued Taourirt; 20/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/2463 • 1 ♂; Pont Oued Lek’hal; 20/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/2464 • 2 ♂♂; Aïn Admam; 22/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/2465 • 5 ♂♂; Forêt Admam; 22/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/2466.
North African distribution.
Morocco (Banamar et al. 2020).
description: Published as part of El Mouden, Mohamed Amin, Chandler, Peter J., Saidoun, Imane, Driauach, Ouafaa & Belqat, Boutaïna, 2025, A new species of Docosia Winnertz, 1864 and new records of fungus gnats (Diptera, Bolitophilidae, Keroplatidae and Mycetophilidae) from North Africa, pp. 349-379 in ZooKeys 1233 on pages 349-379, DOI: 10.3897/zookeys.1233.130502
Graphical model structure learning using L₁-regularization
Creators: name: Schmidt, Mark
Publisher: name: University of British Columbia
Year: 2010

description: This work looks at fitting probabilistic graphical models to data when the structure is not known. The main tool to do this is L₁-regularization and the more general group L₁-regularization. We describe limited-memory quasi-Newton methods to solve optimization problems with these types of regularizers, and we examine learning directed acyclic graphical models with L₁-regularization, learning undirected graphical models with group L₁-regularization, and learning hierarchical log-linear models with overlapping group L₁-regularization.
Nucleon tensor form factors induced by isovector and isoscalar currents in QCD
Creators: name: Aliev, T. M.
name: Azizi, K.
name: Savci, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using the most general form of the nucleon interpolating current, we calculate the tensor form factors of the nucleon within light cone QCD sum rules. A comparison of our results on tensor form factors with those of the chiral--soliton model and lattice QCD is given.
description: 16 Pages, 8 Figures and 1 Table
Broward County coastal ocean water quality study, 2010-2012.
Creators: name: Carsey, Thomas P.
name: Stamates, S. Jack (Speridon Jack)
name: Featherstone, Charles M.
name: Amornthammarong, Natchanon
name: Bishop, Joseph R.
name: Brown, Cheryl J.
name: Campbell, Alexandra
name: Casanova, Hector L.
name: Gidley, Maribeth L.
name: Kosenko, Marina
name: Kotkowski, Rachel M.
name: Lopez, Jose V.
name: Sinigalliano, Christopher D.
name: Visser, Lindsey A.
name: Zhang, Jia-Zhong
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Office of Oceanic and Atmospheric Research, Atlantic Oceanographic and Meteorological Laboratory.
Year: 2015
Subjects: subject: Coastal zone management--Florida--Broward County.

description: Researchers with the Ocean Chemistry and Ecosystems Division of NOAA’s Atlantic Oceanographic and Meteorological Laboratory conducted 12 monthly cruises in two separate track lines off of Broward County, Florida, from November 2010 through January 2012. The cruise tracks were designed to provide information on three categories of the coastal ocean: (1) the vicinity of the Broward and Hollywood treated-wastewater outfalls; (2) the vicinity of the Hillsboro and Port Everglades inlets; and (3) the interstitial areas in between. Sampling took place from aboard the NOAA R/V Hildebrand using a conductivity-temperaturedepth (CTD)/rosette for water samples and water column profiles and appropriately located acoustic Doppler current profiler (ADCP) instruments for ocean current information. Measured discrete parameters included location, depth, salinity, temperature, pH, oxygen saturation (dissolved oxygen, DO), oxidation-reduction (redox) potential (ORP), chlorophyll-a, phaeopigments, total suspended solids (TSS), nitrate (NO3), nitrite (NO2), ammonium (NH4), silicate (Si), orthophosphate (PO4), total dissolved nitrogen (TDN), total dissolved phosphorus (TDP), particulate carbon (PC), particulate phosphorus (PP), particulate nitrogen (PN), and dissolved organic carbon (DOC). CTD profile data included depth, turbidity, ORP, DO, pH, chlorophyll-a, salinity, temperature, and density. A variety of microbiological entities were measured, including fecal indicator bacteria (FIB), selected waterborne pathogens, and molecular microbial source tracking (MST) markers. Community bacterial metagenomic profiles were also generated for selected sample sites. Quality controls of nutrient sample analyses were obtained following National Environmental Laboratory Accreditation Conference (NELAC)-certified procedures. The data obtained present a view of the coastal ocean as having a low “background” concentration of most analytes, interrupted by elevated concentrations near the outfalls and inlets whose excess concentrations decreased rapidly away from the point sources. The waters were found to be oligotrophic, with no evidence of bloom events. A major upwelling event was observed on August 11, 2011, where a ~10°C temperature drop was observed near the southernmost portion of the sampled area.
Magnetoelectricity in the system $RAl_3(BO_3)_4$ ($R$ = Tb, Ho, Er, Tm)
Creators: name: Liang, K. -C.
name: Chaudhury, R. P.
name: Lorenz, B.
name: Sun, Y. Y.
name: Bezmaternykh, L. N.
name: Gudim, I. A.
name: Temerov, V. L.
name: Chu, C. W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The magnetoelectric effect in the system $RAl_3(BO_3)_4$ ($R$ = Tb, Ho, Er, Tm) is investigated between 3 K and room temperature and at magnetic fields up to 70 kOe. We show a systematic increase of the magnetoelectric effect with decreasing magnetic anisotropy of the rare earth moment. A giant magnetoelectric polarization is found in the magnetically (nearly) isotropic $HoAl_3(BO_3)_4$. The polarization value in transverse field geometry at 70 kOe reaches 3600 $μC/m^2$ which is significantly higher than reported values for the field-induced polarization of linear magnetoelectric or even multiferroic compounds. The results indicate a very strong coupling of the f-moments to the lattice. They further indicate the importance of the field-induced ionic displacements in the unit cell resulting in a polar distortion and a change in symmetry on a microscopic scale. The system $RAl_3(BO_3)_4$ could be interesting for the technological utilization of the high-field magnetoelectric effect.
description: 6 pages, 4 figures
Impact of Point Spread Function Higher Moments Error on Weak Gravitational Lensing II: A Comprehensive Study
Creators: name: Zhang, Tianqing
name: Almoubayyed, Husni
name: Mandelbaum, Rachel
name: Meyers, Joshua E.
name: Jarvis, Mike
name: Kannawadi, Arun
name: Schmitz, Morgan A.
name: Guinot, Axel
name: Collaboration, The LSST Dark Energy Science
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Weak gravitational lensing, or weak lensing, is one of the most powerful probes for dark matter and dark energy science, although it faces increasing challenges in controlling systematic uncertainties as \edit{the statistical errors become smaller}. The Point Spread Function (PSF) needs to be precisely modeled to avoid systematic error on the weak lensing measurements. The weak lensing biases induced by errors in the PSF model second moments, i.e., its size and shape, are well-studied. However, Zhang et al. (2021) showed that errors in the higher moments of the PSF may also be a significant source of systematics for upcoming weak lensing surveys. Therefore, the goal of this work is to comprehensively investigate the modeling quality of PSF moments from the $3^{\text{rd}}$ to $6^{\text{th}}$ order, and estimate their impact on cosmological parameter inference. We propagate the \textsc{PSFEx} higher moments modeling error in the HSC survey dataset to the weak lensing \edit{shear-shear correlation functions} and their cosmological analyses. We find that the overall multiplicative shear bias associated with errors in PSF higher moments can cause a $\sim 0.1 σ$ shift on the cosmological parameters for LSST Y10. PSF higher moment errors also cause additive biases in the weak lensing shear, which, if not accounted for in the cosmological parameter analysis, can induce cosmological parameter biases comparable to their $1σ$ uncertainties for LSST Y10. We compare the \textsc{PSFEx} model with PSF in Full FOV (\textsc{Piff}), and find similar performance in modeling the PSF higher moments. We conclude that PSF higher moment errors of the future PSF models should be reduced from those in current methods to avoid a need to explicitly model these effects in the weak lensing analysis.
description: 24 pages, 17 figures, 3 tables; Accepted by MNRAS; Comments welcome!
Monitoring the resin infusion manufacturing process under industrial environment using distributed sensors
Creators: name: Wang, Peng
name: Molimard, Jérôme
name: Drapier, Sylvain
name: Vautrin, Alain
name: Minni, Jean-Christophe
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A novel direct approach to detect the resin flow front during the Liquid Resin Infusion process under industrial environment is proposed. To detect the resin front accurately and verify the results, which are deduced from indirect micro-thermocouples measurements, optical fiber sensors based on Fresnel reflection are utilized. It is expected that the results derived from both techniques will lead to an improvement of our understanding of the resin flow and in particular prove that micro-thermocouples can be used as sensors as routine technique under our experimental conditions. Moreover, comparisons with numerical simulations are carried out and experimental and simulated mold filling times are successfully compared.
description: JM-JCM-46.pdf
Effort Informed Roadmaps (EIRM*): Efficient Asymptotically Optimal Multiquery Planning by Actively Reusing Validation Effort
Creators: name: Hartmann, Valentin N.
name: Strub, Marlin P.
name: Toussaint, Marc
name: Gammell, Jonathan D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Multiquery planning algorithms find paths between various different starts and goals in a single search space. They are designed to do so efficiently by reusing information across planning queries. This information may be computed before or during the search and often includes knowledge of valid paths. Using known valid paths to solve an individual planning query takes less computational effort than finding a completely new solution. This allows multiquery algorithms, such as PRM*, to outperform single-query algorithms, such as RRT*, on many problems but their relative performance depends on how much information is reused. Despite this, few multiquery planners explicitly seek to maximize path reuse and, as a result, many do not consistently outperform single-query alternatives. This paper presents Effort Informed Roadmaps (EIRM*), an almost-surely asymptotically optimal multiquery planning algorithm that explicitly prioritizes reusing computational effort. EIRM* uses an asymmetric bidirectional search to identify existing paths that may help solve an individual planning query and then uses this information to order its search and reduce computational effort. This allows it to find initial solutions up to an order-of-magnitude faster than state-of-the-art planning algorithms on the tested abstract and robotic multiquery planning problems.
description: 16 pages, 7 figures, 1 table. Video and code available at https://robotic-esp.com/code/eirmstar/
Alcyonacea Lamouroux 1816
Creators: name: Cerino, Nadia
name: Lauretta, Daniel
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Anthozoa
Alcyonacea

description: Order Alcyonacea Lamouroux, 1816
description: Published as part of Cerino, Nadia & Lauretta, Daniel, 2013, Armadillogorgia albertoi sp. nov.: a new primnoid from the Argentinean deep sea, pp. 369-376 in Zootaxa 3741 (3) on page 370, DOI: 10.11646/zootaxa.3741.3.5, http://zenodo.org/record/215927
Electronic signatures of successive itinerant, magnetic transitions in hexagonal La2Ni7
Creators: name: Lee, Kyungchan
name: Jo, Na Hyun
name: Wang, Lin-Lin
name: Ribeiro, R. A.
name: Kushnirenko, Yevhen
name: Schrunk, Ben
name: Canfield, Paul C.
name: Kaminski, Adam
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use high-resolution angle-resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) calculations to study the electronic and magnetic properties of La2Ni7, an itinerant magnetic system with a series of three magnetic transition temperatures upon cooling, which end in a weak itinerant antiferromagnetic (wAFM) ground state. Our APRES data reveal several electron and hole pockets that have hexagonal symmetry near the $Γ$ point. We observe significant reconstruction of the band structure upon successive magnetic transitions at T1 = 61 K, T2 = 57 K and T3 = 42 K. The experimental data are in a reasonable agreement with DFT calculations, demonstrating their applicability to itinerant antiferromagnet systems. Our results detail the effects of magnetic ordering on the electronic structure in a Ni-based weak antiferromagnet.
description: 17 pages, 4 figures
Scalable network emulation
Creators: name: Kiddle, Cameron
Publisher: name: University of Calgary
Year: 2004

description: Bibliography: p. 190-202
description: Network emulation provides a testing environment where real network protocols and appli­cations running on real network hosts can interact under controlled and repeatable network conditions. One approach to emulation involves simulating a network model, called the virtual network, with a real-time network simulator and providing an I/O interface that en­ables interaction between real hosts and the virtual network. To reflect the behavior of large networks such as the Internet it is important that the emulation environment be scalable. The virtual network must be able to scale in size and in traffic volume and the I/O interface must be able to scale in the number of real hosts and in real traffic volume. This thesis focuses on addressing scalability of the virtual network through the use of various simulation techniques. Parallel simulation techniques are employed in both shared memory and distributed memory environments. A simulation abstraction technique is also introduced that allows for the interaction of packet-based traffic flows and fluid-based traffic flows. With only parallel simulation techniques employed, real-time emulation performance of nearly 50 million packet transmissions per second is achieved on 128 processors for a network model consisting of about 20,000 nodes. With all simulation techniques employed, real-time emulation performance of nearly 500 million packet transmissions per second is achieved on 128 processors for a network model consisting of about 200,000 nodes.
Cosmic Strings Stabilized by Fermion Fluctuations
Creators: name: Weigel, H.
name: Quandt, M.
name: Graham, N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We provide a thorough exposition of recent results on the quantum stabilization of cosmic strings. Stabilization occurs through the coupling to a heavy fermion doublet in a reduced version of the standard model. The study combines the vacuum polarization energy of fermion zero-point fluctuations and the binding energy of occupied energy levels, which are of the same order in a semi-classical expansion. Populating these bound states assigns a charge to the string. Strings carrying fermion charge become stable if the Higgs and gauge fields are coupled to a fermion that is less than twice as heavy as the top quark. The vacuum remains stable in the model, because neutral strings are not energetically favored. These findings suggest that extraordinarily large fermion masses or unrealistic couplings are not required to bind a cosmic string in the standard model.
description: Based on talk by HW at QFEXT 11 (Benasque, Spain), 15p, uses ws-ijmpcs.cls (incl)
Competing spin-fluctuations in Sr$_2$RuO$_4$ and their tuning through epitaxial strain
Creators: name: Kim, Bongjae
name: Kim, Minjae
name: Kang, Chang-Jong
name: Han, Jae-Ho
name: Kim, Kyoo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this study, we report the magnetic energy landscape of Sr2RuO4 employing the generalized Bloch approach within density functional theory. We identify the two dominant magnetic instabilities, ferromagnetic and spin-density-wave, together with other predominant instabilities. We show that epitaxial strain can change the overall magnetic tendency of the system, and tune the relative weight of the various magnetic instabilities in the system. Especially, the balance between spin-density wave and ferromagnetic instabilities can be controlled by the strain, and, eventually can lead to the new magnetic phases as well as superconducting phases with possibly altered pairing channels. Our findings are compared with previous theoretical models and experimental reports for the various magnetic features of the system and offer a first-principles explanation to them.
Parallel density matrix propagation in spin dynamics simulations
Creators: name: Edwards, Luke J.
name: Kuprov, Ilya
Publisher: name: arXiv
Year: 2011
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Several methods for density matrix propagation in distributed computing environments, such as clusters and graphics processing units, are proposed and evaluated. It is demonstrated that the large communication overhead associated with each propagation step (two-sided multiplication of the density matrix by an exponential propagator and its conjugate) may be avoided and the simulation recast in a form that requires virtually no inter-thread communication. Good scaling is demonstrated on a 128-core (16 nodes, 8 cores each) cluster.
description: Submitted for publication
Twisted Self-Similarity and the Einstein Vacuum Equations
Creators: name: Shlapentokh-Rothman, Yakov
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In the previous works [I. Rodnianski and Y. Shlapentokh-Rothman, Naked Singularities for the Einstein Vacuum Equations: The Exterior Solution, arXiv:1912.08478 and Y. Shlapentokh-Rothman, Naked Singularities for the Einstein Vacuum Equations: The Interior Solution, arXiv:2204.09891] we have introduced a new type of self-similarity for the Einstein vacuum equations characterized by the fact that the homothetic vector field may be spacelike on the past light cone of the singularity. In this work we give a systematic treatment of this new self-similarity. In particular, we provide geometric characterizations of spacetimes admitting the new symmetry and show the existence and uniqueness of formal expansions around the past null cone of the singularity which may be considered analogues of the well-known Fefferman--Graham expansions. In combination with previous results, our analysis will show that the twisted self-similar solutions are sufficiently general to describe all possible asymptotic behaviors for spacetimes in the small data regime which are self-similar and whose homothetic vector field is everywhere spacelike on an initial spacelike hypersurface. We present an application of this later fact to the understanding of the global structure of Fefferman--Graham spacetimes and the naked singularity exteriors of [I. Rodnianski and Y. Shlapentokh-Rothman, Naked Singularities for the Einstein Vacuum Equations: The Exterior Solution, arXiv:1912.08478]. Lastly, we observe that by an amalgamation of techniques from previous works, one may associate true solutions to the Einstein vacuum equations to each of our formal expansions in a suitable region of spacetime.
description: 45 pages, 5 figures, final version
The AGB population of NGC 6822: distribution and the C/M ratio from JHK photometry
Creators: name: Sibbons, L. F.
name: Ryan, S. G.
name: Irwin, M. -R. L. Cioni M.
name: Napiwotzki, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: NGC 6822 is an irregular dwarf galaxy and part of the Local Group. Its close proximity and apparent isolation provide a unique opportunity to study galactic evolution without any obvious strong external influences. This paper aims to study the spatial distribution of the asymptotic giant branch (AGB) population and metallicity in NGC 6822. Using deep, high quality JHK photometry, taken with WFCAM on UKIRT, carbon- and oxygen-rich AGB stars have been isolated. The ratio between their number, the C/M ratio, has then been used to derive the [Fe/H] abundance across the galaxy. The tip of the red giant branch is located at K0 = 17.41 \pm 0.11 mag and the colour separation between carbon- and oxygen-rich AGB stars is at (J - K)0 = 1.20 \pm 0.03 mag (i.e. (J - K)2MAS S » 1.28 mag). A C/M ratio of 0.62 \pm 0.03 has been derived in the inner 4 kpc of the galaxy, which translates into an iron abundance of [Fe/H] = -1.29\pm0.07 dex. Variations of these parameters were investigated as a function of distance from the galaxy centre and azimuthal angle. The AGB population of NGC 6822 has been detected out to a radius of 4 kpc giving a diameter of 56 arcmin. It is metal-poor, but there is no obvious gradient in metallicity with either radial distance from the centre or azimuthal angle. The detected spread in the TRGB magnitude is consistent with that of a galaxy surrounded by a halo of old stars. The C/M ratio has the potential to be a very useful tool for the determination of metallicity in resolved galaxies but a better calibration of the C/M vs. [Fe/H] relation and a better understanding of the sensitivities of the C/M ratio to stellar selection criteria is first required.