cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Supplementary document for Xenon-plasma focused ion beam processing of photonic microstructures with GaAs-based quantum dots - 6597906.pdf
Creators: name: Jaworski, Maciej
name: Mrowinski, Pawel
name: Sek, Grzegorz
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: SUPPLEMENT TO MANUSCRIPT_revised
Magnetostructural martensitic transformations with large volume changes and magneto-strains in all-d-metal Heusler alloys
Creators: name: Wei, Z. Y.
name: Liu, E. K.
name: Li, Y.
name: Han, X. L.
name: Du, Z. W.
name: Luo, H. Z.
name: Liu, G. D.
name: Xi, X. K.
name: Zhang, H. W.
name: Wang, W. H.
name: Wu, G. H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The all-d-metal Mn2-based Heusler ferromagnetic shape memory alloys Mn50Ni40-xCoxTi10 (x = 8 and 9.5) are realized. With a generic comparison between d-metal Ti and main-group elements in lowering the transformation temperature, the magnetostructural martensitic transformations are established by further introducing Co to produce local ferromagnetic Mn-Co-Mn configurations. A 5-fold modulation and (3, -2) stacking of [00 10] of martensite are determined by XRD and HRTEM analysis. Based on the transformation, a large magneto-strain of 6900 ppm and a large volume change of -2.54% are observed in polycrystalline samples, which makes the all-d-metal magnetic martensitic alloys of interest for magnetic/pressure multi-field driven applications.
description: 21 pages, 5 figs. including a supporting file
Optimisation of hydrogen peroxide refiner bleaching of pinus radiata TMP
Creators: name: Ryan, Kevin James.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Xenia delicata Roxas 1933
Creators: name: Halász, Anna
name: Mcfadden, Catherine S.
name: Toonen, Robert
name: Benayahu, Yehuda
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Anthozoa
Alcyonacea
Xeniidae
Xenia
Xenia delicata

description: Xenia delicata Roxas, 1933
Xenia delicata Roxas, 1933: 89
Material. Holotype and 4 paratypes. ZMB 6908, Philippines, Puerto Galera Bay, Mindoro, 1912–1914, coll. members of the Zoology Department, University of the Philippines.
Description. The holotype is 21 mm high, its stalk is 8–9 mm wide, split into two branches, 4–5 mm long, and 4 mm wide. The polyp body is 4 mm long, tentacles up to 6 mm long, featuring three irregular rows of pinnules on each side and occasionally a fourth row. The pinnules are relatively short, up to 0.32 mm long and 0.10 mm wide, 18–23 in the outermost row with a space of 1–1.5 pinnule-widths between adjacent pinnules. There are no sclerites in any part of the colony. The ethanol-preserved holotype is light yellowish-beige.
The four paratypes resemble the holotype. The first paratype colony is 15 mm high; its stalk is 10 mm long and 3–4 mm wide, and does not split. The second is 15 mm high; its stalk is 10–12 mm long, divided into five branches, each 6–8 mm long and 3–4 mm wide. The third colony is 20 mm high, its stalk is 7–8 mm wide, splits into two branches, each 4–5 mm long and 3–4 mm wide. The fourth colony is 12–15 mm high; its stalk is 3–4 mm long and splits at the base into five branches, two of which split again into three, and another one into two branches, 2–3 mm above the colony base. They are 8–10 mm long, 4–5 mm wide at their base, and 3–4 mm at their uppermost part. Similar to the holotype, there are no sclerites in any part of the paratypes.
Remarks. Roxas (1933) described X. delicata as having four rows of pinnules and 18–20 pinnules in the outermost row, thus corresponding to the current findings. In contrast to the current findings, the original description indicated: “spicules present especially on external surface of tentacles and pinnules”; it also referred to only one colony although five were found under ZMB 6908. If the sclerites had dissolved due to the acidified preservative, X. delicata would in that case resemble X. membranacea.
Similar species and conclusion. X. sansibariana, X. mucosa Verseveldt & Tursch, 1979 and X. delicata lack sclerites in all parts of the colony, but differ in pinnule arrangement (X. sansibariana: 4 rows and 26–33, X. mucosa: 4 rows and 30–42, X. delicata: 3 and occasionally 4 rows and 18–23 pinnules) and thus should be considered as separate species.
Distribution. Philippines.
description: Published as part of Halász, Anna, Mcfadden, Catherine S., Toonen, Robert & Benayahu, Yehuda, 2019, Re-description of type material of Xenia Lamarck, 1816 (Octocorallia: Xeniidae), pp. 201-239 in Zootaxa 4652 (2) on page 211, DOI: 10.11646/zootaxa.4652.2.1, http://zenodo.org/record/3363653
Optimizing an LTS-Simulation Algorithm (Technical Report)
Creators: name: Holík, Lukáš
name: Šimáček, Jiří
Publisher: name: arXiv
Year: 2023
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences

description: When comparing the fastest algorithm for computing the largest simulation preorder over Kripke structures with the one for labeled transition systems (LTS), there is a noticeable time and space complexity blow-up proportional to the size of the alphabet of an LTS. In this paper, we present optimizations that suppress this increase of complexity and may turn a large alphabet of an LTS to an advantage. Our experimental results show significant speed-ups and memory savings. Moreover, the optimized algorithm allows one to improve asymptotic complexity of procedures for computing simulations over tree automata using recently proposed algorithms based on computing simulation over certain special LTS derived from a tree automaton.
Exploring the progenitors of brightest cluster galaxies at z~2
Creators: name: Zhao, Dongyao
name: Conselice, Christopher J.
name: Aragón-Salamanca, Alfonso
name: Almaini, Omar
name: Hartley, William G.
name: Lani, Caterina
name: Mortlock, Alice
name: Old, Lyndsay
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a new method for tracing the evolution of BCGs from $z\sim 2$ to $z\sim 0$. We conclude on the basis of semi-analytical models that the best method to select BCG progenitors at $z\sim 2$ is a hybrid environmental density and stellar mass ranking approach. Ultimately we are able to retrieve 45\% of BCG progenitors. We apply this method on the CANDELS UDS data to construct a progenitor sample at high redshift. We furthermore populate the comparisons in local universe by using SDSS data with statistically likely contamination to ensure a fair comparison between high and low redshifts. Using these samples we demonstrate that the BCG sizes have grown by a factor of $\sim 3.2$ since $z\sim 2$, and BCG progenitors are mainly late-type galaxies, exhibiting less concentrated profiles than their early-type local counterparts. We find that BCG progenitors have more disturbed morphologies. In contrast, local BCGs have much smoother profiles. Moreover, we find that the stellar masses of BCGs have grown by a factor of $\sim 2.5$ since $z\sim 2$, and the SFR of BCG progenitors has a median value of 13.5 $M_\odot$yr$^{-1}$, much higher than their quiescent local descendants. We demonstrate that over $z=1-2$ star formation and merging contribute equally to BCG mass growth. However, merging plays a dominant role in BCG assembly at $z \lesssim 1$. We also find that BCG progenitors at high-$z$ are not significantly different from other galaxies of similar mass at the same epoch. This suggests that the processes which differentiate BCGs from normal massive elliptical galaxies must occur at $z \lesssim 2$.
description: 25 pages, 10 figures, accepted by MNRAS
Measuring the Cosmic X-ray Background accurately
Creators: name: Li, Hancheng
name: Walter, Roland
name: Produit, Nicolas
name: Hubert, Fiona
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Synthesis models of the diffuse Cosmic X-ray Background (CXB) suggest that it can be resolved into discrete sources, primarily Active Galactic Nuclei (AGNs). Measuring the CXB accurately offers a unique probe to study the AGN population in the nearby Universe. Current hard X-ray instruments suffer from the time-dependent background and cross-calibration issues. As a result, their measurements of the CXB normalization have an uncertainty of the order of $\sim$15%. In this paper, we present the concept and simulated performances of a CXB detector, which could be operated on different platforms. With a 16-U CubeSat mission running for more than two years in space, such a detector could measure the CXB normalization with $\sim$1% uncertainty.
Isothermal anisotropic magnetoresistance in antiferromagnetic metallic IrMn
Creators: name: Galceran, R.
name: Fina, I.
name: Cisneros-Fernández, J.
name: Bozzo, B.
name: Frontera, C.
name: López-Mir, L.
name: Deniz, H.
name: Park, K. -W.
name: Park, B. -G.
name: Balcells, Ll.
name: Martí, X.
name: Jungwirth, T.
name: Martínez, B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Antiferromagnetic spintronics is an emerging field; antiferromagnets can improve the functionalities of ferromagnets with higher response times, and having the information shielded against external magnetic field. Moreover, a large list of aniferromagnetic semiconductors and metals with Néel temperatures above room temperature exists. In the present manuscript, we persevere in the quest for the limits of how large can anisotropic magnetoresistance be in antiferromagnetic materials with very large spin-orbit coupling. We selected IrMn as a prime example of first-class moment (Mn) and spin-orbit (Ir) combination. Isothermal magnetotransport measurements in an antiferromagnetic-metal(IrMn)/ferromagnetic-insulator thin film bilayer have been performed. The metal/insulator structure with magnetic coupling between both layers allows the measurement of the modulation of the transport properties exclusively in the antiferromagnetic layer. Anisotropic magnetoresistance as large as 0.15 % has been found, which is much larger than that for a bare IrMn layer. Interestingly, it has been observed that anisotropic magnetoresistance is strongly influenced by the field cooling conditions, signaling the dependence of the found response on the formation of domains at the magnetic ordering temperature.
Creep and dynamic mechanical properties of eucalypt single fibres and handsheets
Creators: name: Denis, Edward S. .
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Reinforcement Learning for Joint Design and Control of Battery-PV Systems
Creators: name: Cauz, Marine
name: Bolland, Adrien
name: Miftari, Bardhyl
name: Perret, Lionel
name: Ballif, Christophe
name: Wyrsch, Nicolas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: The decentralisation and unpredictability of new renewable energy sources require rethinking our energy system. Data-driven approaches, such as reinforcement learning (RL), have emerged as new control strategies for operating these systems, but they have not yet been applied to system design. This paper aims to bridge this gap by studying the use of an RL-based method for joint design and control of a real-world PV and battery system. The design problem is first formulated as a mixed-integer linear programming problem (MILP). The optimal MILP solution is then used to evaluate the performance of an RL agent trained in a surrogate environment designed for applying an existing data-driven algorithm. The main difference between the two models lies in their optimization approaches: while MILP finds a solution that minimizes the total costs for a one-year operation given the deterministic historical data, RL is a stochastic method that searches for an optimal strategy over one week of data on expectation over all weeks in the historical dataset. Both methods were applied on a toy example using one-week data and on a case study using one-year data. In both cases, models were found to converge to similar control solutions, but their investment decisions differed. Overall, these outcomes are an initial step illustrating benefits and challenges of using RL for the joint design and control of energy systems.
Plasma noise in TianQin time delay interferometry
Creators: name: Jing, Yi-De
name: Zheng, Lu
name: Yang, Shutao
name: Zhang, Xuefeng
name: Lu, Lingfeng
name: Tang, Binbin
name: Su, Wei
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: TianQin is a proposed geocentric space-based gravitational wave observatory mission, which requires time-delay interferometry (TDI) to cancel laser frequency noise. With high demands for precision, solar-wind plasma environment at $\sim 10^5$ km above the Earth may constitute a non-negligible noise source to laser interferometric measurements between satellites, as charged particles perturb the refractivity along light paths. In this paper, we first assess the plasma noises along single links from space-weather models and numerical orbits, and analyze the time and frequency domain characteristics. Particularly, to capture the plasma noise in the entire measurement band of $10^{-4} - 1$ Hz, we have performed additional space-weather magnetohydrodynamic simulations in finer spatial and temporal resolutions and utilized Kolmogorov spectra in high-frequency data generation. Then we evaluate the residual plasma noises of the first- and second-generation TDI combinations. Both analytical and numerical estimations have shown that under normal solar conditions the plasma noise after TDI is less than the secondary noise requirement. Moreover, TDI is shown to exhibit moderate suppression on the plasma noise below $\sim 10^{-2}$ Hz due to noise correlation between different arms, when compared with the secondary noise before and after TDI.
description: 12 pages, 15 figures, accepted by Phys. Rev. D
The immediate effect of lumbosacral thrust joint manipulation on hip and knee muscle strength and squatting in patients with patellofemoral pain – a randomized, placebo-controlled, clinical trial
Creators: name: D'Agati, Michael L.
Publisher: name: No Publisher Supplied
Year: 2022

description: Patellofemoral pain syndrome (PFPS) is a persistent, pervasive, disabling musculoskeletal disorder that entails impaired squatting and leg muscle strength that are potentially related to muscle inhibition. There is evidence that lumbosacral thrust joint manipulation (TJM) reduces muscle inhibition and improves muscle strength, but there are discrepancies and deficiencies in the literature regarding the use of lumbosacral TJM to improve squatting and leg strength in patients with PFPS. The study aims are to assess the immediate effect of lumbar TJM on the ability to squat deeper without pain and hip and knee muscle strength in patients with PFPS. The primary research questions were as follows:1)Does lumbosacral TJM increase hip (extension, abduction and external rotation) muscle strength more than a manual placebo in patients with PFPS?2)Does lumbosacral TJM increase quadriceps muscle strength more than a manual placebo in patients with PFPS?3)Does lumbosacral TJM increase pain-free squat depth more than a manual placebo in patients with PFPS?This prospective, double-blind, randomized controlled clinical trial included a lumbosacral TJM treatment arm and a manual placebo-control arm. In the manipulation group, the within-group changes were significant for hip abduction and external rotation, but not hip or knee extension or pain-free squat range of motion. In the manual placebo group, no within-group changes were significant. The between-group changes were not significant for any outcome. Future research should assess the utility of lumbar TJM as adjunctive treatment to therapeutic exercise for improving these outcomes.
title: Meeting the Educational Needs of Systems Librarians: A comparative Study of Schools of Information and Library Science, Graduate Schools of Business, and Undergraduate and Graduate Computer Science Programs
Creators: name: Burtle, Laura
Publisher: name: Georgia State University
publisherIdentifier: https://ror.org/03qt6ba18
publisherIdentifierScheme: ROR
Year: 1994

description: This study describes a content analysis of the course catalogs of top-ranked Schools of information and Library Science, Graduate Schools of Business, and undergraduate and graduate Computer Science programs. The catalogs are analyzed in regard to the number of courses they offer that address the educational needs of aspiring systems librarians. These needs are derived from two previous studies of systems librarianship. Schools of Information and Library Science and Graduate Schools of Business offer similar numbers of courses in most of the nine categories studied, although Business Schools do not offer courses in library-specific technical services. Computer Science programs only offer courses in microcomputers, programming and networking. Few individual schools in any of the three disciplines offer courses in more than three of the nine categories.
P2P-PL: A Pattern Language to Design Efficient and Robust Peer-to-Peer Systems
Creators: name: Amoretti, Michele
name: Zanichelli, Francesco
Publisher: name: arXiv
Year: 2016
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences
subject: C.2.4

description: To design peer-to-peer (P2P) software systems is a challenging task, because of their highly decentralized nature, which may cause unexpected emergent global behaviors. The last fifteen years have seen many P2P applications to come out and win favor with millions of users. From success histories of applications like BitTorrent, Skype, MyP2P we have learnt a number of useful design patterns. Thus, in this article we present a P2P pattern language (shortly, P2P-PL) which encompasses all the aspects that a fully effective and efficient P2P software system should provide, namely consistency of stored data, redundancy, load balancing, coping with asymmetric bandwidth, decentralized security. The patterns of the proposed P2P-PL are described in detail, and a composition strategy for designing robust, effective and efficient P2P software systems is proposed.
description: 43 pages, 27 figures
Performance of internet based multicast video conferencing
Creators: name: Psallidas, Ioannis.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Pion dynamics in a soft-wall AdS-QCD model
Creators: name: Cao, Xuanmin
name: Baggioli, Matteo
name: Liu, Hui
name: Li, Danning
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Pseudo-Goldstone modes appear in many physical systems and display robust universal features. First, their mass $m$ obeys the so-called Gell-Mann-Oakes-Renner (GMOR) relation $f^2\,m^2=H\,\barσ$, with $f$ the Goldstone stiffness, $H$ the explicit breaking scale and $\barσ$ the spontaneous condensate. More recently, it has been shown that their damping $Ω$ is constrained to follow the relation $Ω=m^2 D_φ$, where $D_φ$ is the Goldstone diffusivity in the purely spontaneous phase. Pions are the most paradigmatic example of pseudo-Goldstone modes and they are related to chiral symmetry breaking in QCD. In this work, we consider a bottom-up soft-wall AdS-QCD model with broken ${\rm{SU}}(2)_L \times {\rm{SU}}(2)_R$ symmetry and we study the nature of the associated pseudo-Goldstone modes -- the pions. In particular, we perform a detailed investigation of their dispersion relation in presence of dissipation, of the role of the explicit breaking induced by the quark masses and of the dynamics near the critical point. Taking advantage of the microscopic information provided by the holographic model, we give quantitative predictions for all the coefficients appearing in the effective description. In particular, we estimate the finite temperature behavior of the kinetic parameter $\mathfrak{r^2}$ defined as the ration between the Goldstone diffusivity $D_φ$ and the pion attenuation constant $D_A$. Interestingly, we observe important deviations from the value $\mathfrak{r^2}=3/4$ computed in chiral perturbation theory in the limit of zero temperature.
description: 18 pages, 14 figures
Particle identification with the cluster counting technique for the IDEA drift chamber
Creators: name: Caputo, Claudio
name: Chiarello, Gianluigi
name: Corvaglia, Alessandro
name: Cuna, Federica
name: D'Anzi, Brunella
name: De Filippis, Nicola
name: Elmetenawee, Walaa
name: Gorini, Edoardo
name: Grancagnolo, Francesco
name: Greco, Matteo
name: Gribanov, Sergei
name: Johnson, Kurtis
name: Miccoli, Alessandro
name: Panareo, Marco
name: Popov, Alexander
name: Primavera, Margherita
name: Taliercio, Angela
name: Tassielli, Giovanni Francesco
name: Ventura, Andrea
name: Xin, Shuiting
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: IDEA (Innovative Detector for an Electron-positron Accelerator) is a general-purpose detector concept, designed to study electron-positron collisions in a wide energy range from a very large circular leptonic collider. Its drift chamber is designed to provide an efficient tracking, a high precision momentum measurement and an excellent particle identification by exploiting the application of the cluster counting technique. To investigate the potential of the cluster counting techniques on physics events, a simulation of the ionization clusters generation is needed, therefore we developed an algorithm which can use the energy deposit information provided by Geant4 toolkit to reproduce, in a fast and convenient way, the clusters number distribution and the cluster size distribution. The results obtained confirm that the cluster counting technique allows to reach a resolution 2 times better than the traditional dE/dx method. A beam test has been performed during November 2021 at CERN on the H8 to validate the simulations results, to define the limiting effects for a fully efficient cluster counting and to count the number of electron clusters released by an ionizing track at a fixed $βγ$ as a function of the track angle. The simulation and the beam test results will be described briefly in this issue.
description: 2 pages, 4 figures, Proceedings of: PM2021
Applying the perturbative integral in aeromaneuvers around Mars to calculate the cost
Creators: name: Piñeros, Jhonathan O. Murcia
name: Prado, Antônio F. Bertachini de Almeida
name: Santos, Walter Abrahão dos
name: de Moraes, Rodolpho Vilhena
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The perturbative integral method was applied to quantify the contribution of external forces during a specific interval of time in trajectories of spacecraft around asteroids and under the Luni-solar influence. However, this method has not been used to quantify the contributions of drag in aerocapture and aerobraking. For this reason, the planet Mars is selected to apply this method during an aerogravity-assisted maneuver. Several trajectories are analyzed, making use of a drag device with area to mass ratios varying from 0.0 to 20.0 m2/kg, simulating solar sails or de-orbit devices. The mathematical model is based in the restricted three-body problem. The use of this maneuver makes it possible to obtain the variations of energy in the trajectory, replacing expensive maneuvers based on fuel consumption. To observe the effects of the maneuvers, different values of pericenter velocity and altitude were selected for prograde and retrograde orbits. The innovation of this research is the application of an integral method to quantify the delta-V of the aero gravity maneuver, comparing the cost of the maneuver with the traditional methods of space propulsion. The results allow the identification of orbits with conditions to capture, and the perturbative maps show the velocity variations.
Using low Lift-to-Drag spacecraft to perform upper atmospheric Aero-Gravity Assisted Maneuvers
Creators: name: Piñeros, Jhonathan O. Murcia
name: de Moraes, Rodolpho Vilhena
name: Prado, Antônio F. Bertachini de Almeida
Publisher: name: arXiv
Year: 2023
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: The Gravity Assisted Maneuver has been applied in lots of space missions, to change the spacecraft heliocentric velocity vector and the geometry of the orbit, after the close approach to a celestial body, saving propellant consumption. It is possible to take advantage of additional forces to improve the maneuver, like the forces generated by the spacecraft-atmosphere interaction and/or propulsion systems; reducing the time of flight and the need for multiple passages around secondary bodies. However, these applications require improvements in critical subsystems, which are necessary to accomplish the mission. In this paper, a few combinations of the Gravity-Assist were classified, including maneuvers with thrust and aerodynamic forces; presenting the advantages and limitations of these variations. There are analyzed the effects of implementing low Lift-to-Drag ratios at high altitudes for Aero-gravity Assist maneuvers, with and without propulsion. The maneuvers were simulated for Venus and Mars, due to their relevance in interplanetary missions, the interest in exploration, and the knowledge about their atmospheres. The Aero-gravity Assist maneuver with low Lift-to-Drag ratios at high altitudes shows an increase of more than 10° in the turn angle for Venus and 2.5° for Mars. The maneuvers increase the energy gains by more than 15% when compared to the Gravity-Assist. From the Technology Readiness Levels, it was observed that the current level of development of the space technology makes feasible the application of Aero-gravity Assisted Maneuvers at high altitudes in short term.
Comparative Assessment of Biomechanical Parameters in Subjects With Multiple Cerebral Aneurysms Using Fluid--Structure Interaction Simulations
Creators: name: Shidhore, Tanmay C.
name: Cohen-Gadol, Aaron A.
name: Rayz, Vitaliy L.
name: Christov, Ivan C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Medical Physics (physics.med-ph)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Cerebral aneurysm progression is a result of a complex interplay of the biomechanical and clinical risk factors that drive aneurysmal growth and rupture. Subjects with multiple aneurysms are unique cases wherein clinical risk factors are expected to affect each aneurysm equally, thus allowing for disentangling the effect of biomechanical factors on aneurysmal growth. Towards this end, we performed a comparative computational fluid--structure interaction analysis of aneurysmal biomechanics in image-based models of stable and growing aneurysms in the same subjects, using the cardiovascular simulation platform SimVascular. We observed that areas exposed to low shear and the median peak systolic arterial wall displacement were higher by factors of 2 or more and 1.5, respectively, in growing aneurysms as compared to stable aneurysms. Furthermore, we defined a novel metric, the oscillatory stress index (OStI), that indicates locations of oscillating arterial wall stresses. We observed that growing aneurysms were characterized by regions of combined low wall shear and high OStI, which we hypothesize to be associated with regions of collagen degradation and remodeling. Such regions were either absent or below 5% of the surface area in stable aneurysms. Our results lay the groundwork for future studies in larger cohorts of subjects, to evaluate the statistical significance of these biomechanical parameters in cerebral aneurysm growth.
description: 21 pages (8 figures) + 6 pages of supplementary appendices (4 figures); v2: fix typos
Chandra Characterization of X-ray Emission in the Young F-Star Binary System HD 113766
Creators: name: Lisse, C. M.
name: Christian, D. J.
name: Wolk, S. J.
name: Günther, H. M.
name: Chen, C. H.
name: Grady, C. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using Chandra we have obtained imaging X-ray spectroscopy of the 10 to 16 Myr old F-star binary HD 113766. We individually resolve the binary components for the first time in the X-ray and find a total 0.3 to 2.0 keV luminosity of 2.2e29 erg/sec, consistent with previous RASS estimates. We find emission from the easternmost, infrared-bright, dusty member HD 113766A to be only 10% that of the western, infrared-faint member HD 113766B. There is no evidence for a 3rd late-type stellar or sub-stellar member of HD113766 with Lx > 6e25 erg s-1 within 2 arcmin of the binary pair. The ratio of the two stars Xray luminosity is consistent with their assignments as F2V and F6V by Pecaut et al. (2012). The emission is soft for both stars, kTApec = 0.30 to 0.50 keV, suggesting X-rays produced by stellar rotation and/or convection in young dynamos, but not accretion or outflow shocks which we rule out. A possible 2.8 +/- 0.15 (2σ) hr modulation in the HD 113766B X-ray emission is seen, but at very low confidence and of unknown provenance. Stellar wind drag models corresponding to Lx = 2e29 erg s-1 argue for a 1 mm dust particle lifetime around HD 113766B of only 90,0000 years, suggesting that dust around HD 113766B is quickly removed, whereas dust around HD 113766A can survive for > 1.5e6 yrs. At 1e28 to 1e29 erg s-1 luminosity, astrobiologically important effects, like dust warming and X-ray photolytic organic synthesis, are likely for any circumstellar material in the HD 113766 systems.
description: 23 Pages, 3 Figures Key words: X-rays: stars; techniques: spectroscopic; stars: planetary systems: formation, debris disks; astrochemistry
HistRED: A Historical Document-Level Relation Extraction Dataset
Creators: name: Yang, Soyoung
name: Choi, Minseok
name: Cho, Youngwoo
name: Choo, Jaegul
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Despite the extensive applications of relation extraction (RE) tasks in various domains, little has been explored in the historical context, which contains promising data across hundreds and thousands of years. To promote the historical RE research, we present HistRED constructed from Yeonhaengnok. Yeonhaengnok is a collection of records originally written in Hanja, the classical Chinese writing, which has later been translated into Korean. HistRED provides bilingual annotations such that RE can be performed on Korean and Hanja texts. In addition, HistRED supports various self-contained subtexts with different lengths, from a sentence level to a document level, supporting diverse context settings for researchers to evaluate the robustness of their RE models. To demonstrate the usefulness of our dataset, we propose a bilingual RE model that leverages both Korean and Hanja contexts to predict relations between entities. Our model outperforms monolingual baselines on HistRED, showing that employing multiple language contexts supplements the RE predictions. The dataset is publicly available at: https://huggingface.co/datasets/Soyoung/HistRED under CC BY-NC-ND 4.0 license.
Explaining the mechanism of random lasing based sensing
Creators: name: Gaio, Michele
name: Caixeiro, Soraya
name: Marelli, Benedetto
name: Omenetto, Fiorenzo
name: Sapienza, Riccardo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Here we report a random lasing based sensor which shows pH sensitivity exceeding by 2-orders of magnitude that of a conventional fluorescence sensor. We explain the sensing mechanism as related to gain modifications and lasing threshold nonlinearities. A dispersive diffusive lasing theory matches well the experimental results, and allow us to predict the optimal sensing conditions and a maximal sensitivity as large as 200 times that of an identical fluorescence-based sensor. The simplicity of operation and high sensitivity make it promising for future biosensing applications.
Luminosity at LHCb in Run 3
Creators: name: Graverini, Elena
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The LHCb detector optimised its performance in Runs~1 and~2 by stabilising the instantaneous luminosity during a fill. This was achieved by tuning the distance between the two colliding beams according to the measurement of instantaneous luminosity from hardware-based trigger counters. The upgraded LHCb detector operates at fivefold instantaneous luminosity compared to the previous runs, and it has a fully software-based trigger. Consequently, a new approach to the luminosity measurement is adopted. New counters, with particular attention to maximum stability in time, and a new dedicated detector have been introduced for Run~3. Additionally, in order to verify linearity from calibration to data taking conditions, per-fill emittance scans are performed. We present an overview of the newly implemented methods for luminosity measurement, as well as early achievements obtained during the first few weeks of data taking.
description: Proceedings of the International Conference on High Energy Physics (ICHEP) 2022
The speed derestriction sign and its alternatives
Creators: name: Donald, Deborah.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Efficient measurement-device-independent detection of multipartite entanglement structure
Creators: name: Zhao, Qi
name: Yuan, Xiao
name: Ma, Xiongfeng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Witnessing entanglement is crucial in quantum information processing. With properly preparing ancillary states, it has been shown previously that genuine entanglement can be witnessed without trusting measurement devices. In this work, we generalize the scenario and show that generic multipartite entanglement structures, including entanglement of subsystems and entanglement depth, can be witnessed via measurement-device-independent means. As the original measurement-device-independent entanglement witness scheme exploits only one out of four Bell measurement outcomes for each party, a direct generalization to multipartite quantum states will inevitably cause inefficiency in entanglement detection after taking account of statistical fluctuations. To resolve this problem, we also present a way to utilize all the measurement outcomes. The scheme is efficient for multipartite entanglement detection and can be realized with state-of-the-art technologies.
description: 20 pages, 1 figure, comments are welcome
Buoyancy effect on the flow pattern and the thermal performance of an array of circular cylinders
Creators: name: Fornarelli, Francesco
name: Lippolis, Antonio
name: Oresta, Paolo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this paper we found, by means of numerical simulations, a transition in the oscillatory character of the flow field for a particular combination of buoyancy and spacing in an array of six circular cylinders at a Reynolds number of 100 and Prandtl number of 0.7. The cylinders are iso-thermal and they are aligned with the Earth acceleration (g). According to the array orientation, an aiding or an opposing buoyancy is considered. The effect of natural convection with respect to the forced convection is modulated with the Richardson number, Ri, ranging between -1 and 1. Two values of center to center spacing (s=3.6d - 4d) are considered. The effects of buoyancy and spacing on the flow pattern in the near and far field are described. Several transitions in the flow patterns are found and a parametric analysis of the dependence of the force coefficients and Nusselt number with respect to the Richardson number is reported. For Ri=-1, the change of spacing ratio from 3.6 to 4 induces a transition in the standard deviation of the force coefficients and heat flux. In fact the transition occurs due to rearrangement of the near field flow in a more ordered wake pattern. Therefore, attention is focused on the influence of geometrical and buoyancy parameters on the heat and momentum exchange and their fluctuations. The available heat exchange models for cylinders array provide a not accurate prediction of the Nusselt number in the cases here studied.
description: ASME Journal of Heat Transfer
Generalizing Graph ODE for Learning Complex System Dynamics across Environments
Creators: name: Huang, Zijie
name: Sun, Yizhou
name: Wang, Wei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Multiagent Systems (cs.MA)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Learning multi-agent system dynamics has been extensively studied for various real-world applications, such as molecular dynamics in biology. Most of the existing models are built to learn single system dynamics from observed historical data and predict the future trajectory. In practice, however, we might observe multiple systems that are generated across different environments, which differ in latent exogenous factors such as temperature and gravity. One simple solution is to learn multiple environment-specific models, but it fails to exploit the potential commonalities among the dynamics across environments and offers poor prediction results where per-environment data is sparse or limited. Here, we present GG-ODE (Generalized Graph Ordinary Differential Equations), a machine learning framework for learning continuous multi-agent system dynamics across environments. Our model learns system dynamics using neural ordinary differential equations (ODE) parameterized by Graph Neural Networks (GNNs) to capture the continuous interaction among agents. We achieve the model generalization by assuming the dynamics across different environments are governed by common physics laws that can be captured via learning a shared ODE function. The distinct latent exogenous factors learned for each environment are incorporated into the ODE function to account for their differences. To improve model performance, we additionally design two regularization losses to (1) enforce the orthogonality between the learned initial states and exogenous factors via mutual information minimization; and (2) reduce the temporal variance of learned exogenous factors within the same system via contrastive learning. Experiments over various physical simulations show that our model can accurately predict system dynamics, especially in the long range, and can generalize well to new systems with few observations.
High rank quadratic twists of pairs of elliptic curves
Creators: name: Sadek, Mohammad
name: Alaa, Mohamed
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Given a pair of elliptic curves $E_1$ and $E_2$ over the rational field $\mathbb Q$ whose $j$-invariants are not simultaneously 0 or 1728, Kuwata and Wang proved the existence of infinitely many square-free rationals $d$ such that the $d$-quadratic twists of $E_1$ and $E_2$ are both of positive rank. We construct infinite families of pairs of elliptic curves $E_1$ and $E_2$ over $\mathbb Q$ such that for each pair there exist infinitely many square-free rationals $d$ for which the $d$-quadratic twists of $E_1$ and $E_2$ are both of rank at least 2.
Novel fibre optic chemical sensors
Creators: name: Goode, Jason R. .
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
An exhaustive list of isotropic apocalyptic scenarios
Creators: name: Parnovsky, S. L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the possible types of future singularities in the isotropic homogeneous cosmological models for the arbitrary equation of state of the contents of the Universe. We obtain all known types of these singularities as well as two new types using a simple approach. No additional singularity types are possible. We name the new singularities type "Big Squeeze" and "Little Freeze". The "Big Squeeze" is possible only in the flat Universe after a finite time interval. The density of the matter and dark energy tends to zero and its pressure to minus infinity. This requires the dark energy with a specific equation of state that has the same asymptotical behaviour at low densities as the generalised Chaplygin gas. The "Little Freeze" involves an eternal expansion of the Universe. Some solutions can mimic the $Λ$CDM model.
description: 5 pages
An Efficient Black-Box Support of Advanced Coverage Criteria for Klee
Creators: name: Berthier, Nicolas
name: De Oliveira, Steven
name: Kosmatov, Nikolai
name: Longuet, Delphine
name: Soulat, Romain
Publisher: name: arXiv
Year: 2022
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences
subject: 68M15

description: Dynamic symbolic execution (DSE) is a powerful test generation approach based on an exploration of the path space of the program under test. Well-adapted for path coverage, this approach is however less efficient for conditions, decisions, advanced coverage criteria (such as multiple conditions, weak mutations, boundary testing) or user-provided test objectives. While theoretical solutions to adapt DSE to a large set of criteria have been proposed, they have never been integrated into publicly available testing tools. This paper presents a first integration of an optimized test generation strategy for advanced coverage criteria into a popular open-source testing tool based on DSE, namely, Klee. The integration is performed in a fully black-box manner, and can therefore inspire an easy integration into other similar tools. The resulting version of the tool, named Klee4labels, is publicly available. We present the design of the proposed technique and evaluate it on several benchmarks. Our results confirm the benefits of the proposed tool for advanced coverage criteria.
description: 15 pages
MPEC 2023-Q02 : 2023 PP1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 PP1

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.
Direct data acquisition for a below knee prosthesis
Creators: name: Vaithianathan, Tharshan.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Anchoring historical sequences using a new source of astro-chronological tie-points
Creators: name: Dee, Michael W.
name: Pope, Benjamin J. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: The discovery of past spikes in atmospheric radiocarbon activity, caused by major solar energetic particle events, has opened up new possibilities for high-precision chronometry. The two spikes, or Miyake Events, have now been widely identified in tree-rings that grew in the years 775 and 994 CE. Furthermore, all other plant material that grew in these years would also have incorporated the anomalously high concentrations of radiocarbon. Crucially, some plant-based artefacts, such as papyrus documents, timber beams and linen garments, can also be allocated to specific positions within long, currently unfixed, historical sequences. Thus, Miyake Events represent a new source of tie-points that could provide the means for anchoring early chronologies to the absolute timescale. Here, we explore this possibility, outlining the most expeditious approaches, the current challenges and obstacles, and how they might best be overcome.
description: 11 pages, accepted to Royal Society Proc A
Precession of magnetars: dynamical evolutions and modulations on polarized electromagnetic waves
Creators: name: Gao, Yong
name: Shao, Lijing
name: Desvignes, Gregory
name: Jones, David Ian
name: Kramer, Michael
name: Yim, Garvin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Magnetars are conjectured to be highly magnetized neutron stars (NSs). Strong internal magnetic field and elasticity in the crust may deform the stars and lead to free precession. We study the precession dynamics of triaxially-deformed NSs incorporating the near-field and the far-field electromagnetic torques. We obtain timing residuals for different NS geometries and torques. We also investigate the polarized X-ray and radio signals from precessing magnetars. The modulations on the Stokes parameters are obtained for thermal X-rays emitted from the surface of magnetars. For radio signals, we apply the simple rotating vector model (RVM) to give the modulations on the position angle (PA) of the polarization. Our results are comprehensive, ready to be used to search for magnetar precession with timing data and polarizations of X-ray and radio emissions. Future observations of precessing magnetars will give us valuable information on the geometry and the strength of the strong magnetic fields, the emission geometry, as well as the equation of state (EoS) of NSs.
description: 18 pages, 18 figures; accepted by MNRAS