cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Very fast transmissive spectrograph designs for highly multiplexed fiber spectroscopy
Creators: name: Saunders, Will
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Very fast (f/1.2 and f/1.35) transmissive spectrograph designs are presented for Hector and MSE. The designs have 61mm x 61mm detectors, 4 or 5 camera lenses of aperture less than 228mm, with just 6 air/glass surfaces, and rely on extreme aspheres for their imaging performance. The throughput is excellent, because of the i-line glasses used, the small number of air/glass surfaces.
description: 12 pages, SPIE 9908-341 (2016)
Schüler*innen im Autismus-Spektrum in der Regelklasse: Die Sozialpädagogik im integrativen Schulsetting
Creators: name: Bieri, Marion
name: Furger, Eliane
Publisher: name: Zenodo
Year: 2023

description: In der Politik, aber auch in sozial- und (heil-)pädagogischen Fachkreisen herrscht ein Diskurs darüber, wie die integrative Beschulung gestaltet sein muss, damit den Schüler*innen im Autismus-Spektrum eine möglichst angenehme Schullaufbahn geboten werden kann. Die Erhebungen des Forschungsstandes der Förderung im integrativen Schulsetting von Schüler*innen im Autismus-Spektrum zeigt, dass eine Klärung der Zuständigkeiten und Kompetenzen der involvierten Fachpersonen nötig ist. Deshalb befasst sich die qualitative Forschungsarbeit «Schüler*innen im Autismus-Spektrum in der Regelklasse. Die Sozialpädagogik im integrativen Schulsetting» von Marion Bieri und Eliane Furger mit folgender Fragestellung: «Wie sieht die Rolle der Sozialpädagogik im integrativen Schulsetting von Schüler*innen im Autismus-Spektrum aus?». Die Beantwortung basiert auf sechs leitfadengestützten Expert*inneninterviews, welche nach Meuser und Nagel ausgewertet wurden. Die Forschungsergebnisse zeigen, dass die Rolle der Sozialpädagogik je nach Kanton, Schulstufe und Schüler*in im Autismus-Spektrum unterschiedlich ausfällt. Dennoch wird festgestellt, dass Sozialpädagog*innen Schüler*innen im Autismus-Spektrum vor allem in sozialen Thematiken unterstützen und Klassenlehrpersonen entlasten. Dies bedingt spezifisches Fachwissen sowie die Bereitschaft zur interdisziplinären Zusammenarbeit. So können Sozialpädagog*innen eine begleitende und/oder beratende Rolle einnehmen, was eine stetige Reflexion bedarf. Die Funktion der Sozialpädagogik im integrativen Schulsetting wird anhand Leitlinien dargestellt und soll den Fachpersonen als Orientierung dienen.
description: + Code Diss LU: hslusa basp + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Sozialpädagogik, 2023 + NL-Code: NLLUHSA202309
A study on a new concept for the secondary control unit with impressed pressure for better behaviour and lower cost
Creators: name: El-Ahmar, Rashad R. 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.
PowerWalk: Scalable Personalized PageRank via Random Walks with Vertex-Centric Decomposition
Creators: name: Liu, Qin
name: Li, Zhenguo
name: Lui, John C. S.
name: Cheng, Jiefeng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Retrieval (cs.IR)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Most methods for Personalized PageRank (PPR) precompute and store all accurate PPR vectors, and at query time, return the ones of interest directly. However, the storage and computation of all accurate PPR vectors can be prohibitive for large graphs, especially in caching them in memory for real-time online querying. In this paper, we propose a distributed framework that strikes a better balance between offline indexing and online querying. The offline indexing attains a fingerprint of the PPR vector of each vertex by performing billions of "short" random walks in parallel across a cluster of machines. We prove that our indexing method has an exponential convergence, achieving the same precision with previous methods using a much smaller number of random walks. At query time, the new PPR vector is composed by a linear combination of related fingerprints, in a highly efficient vertex-centric decomposition manner. Interestingly, the resulting PPR vector is much more accurate than its offline counterpart because it actually uses more random walks in its estimation. More importantly, we show that such decomposition for a batch of queries can be very efficiently processed using a shared decomposition. Our implementation, PowerWalk, takes advantage of advanced distributed graph engines and it outperforms the state-of-the-art algorithms by orders of magnitude. Particularly, it responses to tens of thousands of queries on graphs with billions of edges in just a few seconds.
description: technical report of our full paper in CIKM 2016
A Mitchell-like order for Ramsey and Ramsey-like cardinals
Creators: name: Carmody, Erin
name: Gitman, Victoria
name: Habič, Miha E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03E55

description: Smallish large cardinals $κ$ are often characterized by the existence of a collection of filters on $κ$, each of which is an ultrafilter on the subsets of $κ$ of some transitive $\mathrm{ZFC}^-$-model of size $ κ$. We introduce a Mitchell-like order for Ramsey and Ramsey-like cardinals, ordering such collections of small filters. We show that the Mitchell-like order and the resulting notion of rank have all the desirable properties of the Mitchell order on normal measures on a measurable cardinal. The Mitchell-like order behaves robustly with respect to forcing constructions. We show that extensions with cover and approximation properties cannot increase the rank of a Ramsey or Ramsey-like cardinal. We use the results about extensions with cover and approximation properties together with recently developed techniques about soft killing of large-cardinal degrees by forcing to softly kill the ranks of Ramsey and Ramsey-like cardinals.
description: 23 pages
Three-dimensional investigation of void growth leading to fracture in commercially pure titanium
Creators: name: Pushkareva, M.
name: Adrien, J.
name: Maire, E.
name: Segurado, J.
name: Llorca, J.
name: Weck, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The fracture process of commercially pure titanium was visualized in model materials containing artificial holes. These model materials were fabricated using a femtosecond laser coupled with a diffusion bonding technique to obtain voids in the interior of titanium samples. Changes in void dimensions during in-situ straining were recorded in three dimensions using x-ray computed tomography. Void growth obtained experimentally was compared with the Rice and Tracey model which predicted well the average void growth. A large scatter in void growth data was explained by differences in grain orientation which was confirmed by crystal plasticity simulations. It was also shown that grain orientation has a stronger effect on void growth than intervoid spacing and material strength. Intervoid spacing, however, appears to control whether the intervoid ligament failure is ductile or brittle.
A dual consistent finite difference method with narrow stencil second derivative operators
Creators: name: Eriksson, Sofia
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We study the numerical solutions of time-dependent systems of partial differential equations, focusing on the implementation of boundary conditions. The numerical method considered is a finite difference scheme constructed by high order summation by parts operators, combined with a boundary procedure using penalties (SBP-SAT). Recently it was shown that SBP-SAT finite difference methods can yield superconvergent functional output if the boundary conditions are imposed such that the discretization is dual consistent. We generalize these results so that they include a broader range of boundary conditions and penalty parameters. The results are also generalized to hold for narrow-stencil second derivative operators. The derivations are supported by numerical experiments.
Global well-posedness for the derivative nonlinear Schrödinger equation in $H^{\frac 12} (\mathbb{R})$
Creators: name: Guo, Zihua
name: Wu, Yifei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q55

description: We prove that the derivative nonlinear Schrödinger equation is globally well-posed in $H^{\frac 12} (\mathbb{R})$ when the mass of initial data is strictly less than $4π$.
description: 8 pages
Spin-orbit coupling and magnetic interactions in Si(111):{C,Si,Sn,Pb}
Creators: name: Badrtdinov, D. I.
name: Nikolaev, S. A.
name: Katsnelson, M. I.
name: Mazurenko, V. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the magnetic properties of the adatom systems on a semiconductor surface Si(111):\{C,Si,Sn,Pb\} - ($\sqrt{3} \times \sqrt{3}$). On the basis of all-electron density functional theory calculations we construct effective low-energy models taking into account spin-orbit coupling and electronic correlations. In the ground state the surface nanostructures are found to be insulators with the non-collinear 120$^{\circ}$ Néel (for C, Si, Sn monolayer coverages) and 120$^{\circ}$ row-wise (for Pb adatom) antiferromagnetic orderings. The corresponding spin Hamiltonians with anisotropic exchange interactions are derived by means of the superexchange theory and the calculated Dzyaloshinskii-Moriya interactions are revealed to be very strong and compatible with the isotropic exchange couplings in the systems with Sn and Pb adatoms. To simulate the excited magnetic states we solve the constructed spin models by means of the Monte Carlo method. At low temperatures and zero magnetic field we observe complex spin spiral patterns in Sn/Si(111) and Pb/Si(111). On this basis the formation of antiferromagnetic skyrmion lattice states in adatom $sp$ electron systems in strong magnetic fields is discussed.
description: 10 pages
Probing the physics and history of cosmic reionization with the Sunyaev-Zel'dovich Effect
Creators: name: Colafrancesco, S.
name: Marchegiani, P.
name: Emritte, M. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study here an alternative technique to probe the Dark Ages (DA) and the Epoch of Reonization (EoR) that makes use of the Comptonization of the CMB spectrum modified by physical effects occurring during this epoch related to the emergence of the 21-cm radiation background. Inverse Compton scattering of 21-cm photon background by thermal and non-thermal electrons residing in the atmospheres of cosmic structures like galaxy clusters, radiogalaxy lobes and galaxy halos, produces a specific form of Sunyaev-Zel'dovich effect (SZE) that we refer to as SZE-21cm. We derive the SZE-21cm in a general relativistic approach which is required to describe the correct spectral features of this astrophysical effect. We calculate the spectral features of the thermal and non-thermal SZE-21cm in galaxy clusters and in radiogalaxy lobes, and their dependence on the history of physical mechanisms occurring during the DA and EoR. We study how the spectral shape of the SZE-21cm can be used to establish the global features in the mean 21-cm spectrum generated during and prior to the EoR, and how it depends on the properties of the (thermal and non-thermal) plasma in cosmic structures. We find that the thermal and non-thermal SZE-21cm have peculiar spectral shapes that allow to investigate the physics and history of the EoR and DA. Its spectrum depends on the gas temperature (for the thermal SZE-21cm) and on the electrons minimum momentum (for the non-thermal SZE-21cm). The global SZE-21cm signal can be detected (in $\sim 1000$ hrs) by SKA1-low in the frequency range $ν\simgt 75-90$ MHz, for clusters in the temperature range 5 to 20 keV, and the difference between the SZE-21cm and the standard SZE can be detected by SKA1 or SKA2 at frequencies depending on the background model and the cluster temperature. [abridged]
description: A&A, in press; 16 pages, 21 figures
Postural verbs and their roles in locative and existential predication in three Australian languages
Creators: name: Knudsen, Laurits Stapput
name: Ennever, Tom
name: Yacopetti, Eleanor
Publisher: name: Zenodo
Year: 2023

description: Presentation held in the workshop "Locative and existential predication - Core and periphery" at SLE56 in Athens, 2023
Analysis of Spent Nuclear Fuel Imaging Using Multiple Coulomb Scattering of Cosmic Muons
Creators: name: Chatzidakis, Stylianos
name: Choi, Chan K.
name: Tsoukalas, Lefteri H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Cosmic ray muons passing through matter lose energy from inelastic collisions with electrons and are deflected from nuclei due to multiple Coulomb scattering. The strong dependence of scattering on atomic number Z and the recent developments on position sensitive muon detectors indicate that multiple Coulomb scattering could be an excellent candidate for spent nuclear fuel imaging. Muons present significant advantages over existing monitoring and imaging techniques and can play a central role in monitoring nuclear waste and spent nuclear fuel stored in dense well shielded containers. The main purpose of this paper is to investigate the applicability of multiple Coulomb scattering for imaging of spent nuclear fuel dry casks stored within vertical and horizontal commercial storage dry casks. Calculations of muon scattering were performed for various scenarios, including vertical and horizontal fully loaded dry casks, half loaded dry casks, dry casks with one row of fuel assemblies missing, dry casks with one fuel assembly missing and empty dry casks. Various detector sizes (1.2 m x 1.2 m, 2.4 m x 2.4 m and 3.6 m x 3.6 m) and number of muons ($10^{5}, 5\cdot10^{5}, 10^{6}$ and $10^{7}$) were used to assess the effect on image resolution. The Point-of-Closest-Approach (PoCA) algorithm was used for the reconstruction of the stored contents. The results demonstrate that multiple Coulomb scattering can be used to successfully reconstruct the dry cask contents and allow identification of all scenarios with the exception of one fuel assembly missing. In this case, an indication exists that a fuel assembly is not present; however the resolution of the imaging algorithm was not enough to identify exact location.
Classification of asexual diploid organisms by means of strongly isotopic evolution algebras defined over any field
Creators: name: Falcón, O. J.
name: Falcón, R. M.
name: Nuñez, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17D92, 68W30

description: Evolution algebras were introduced into Genetics to deal with the mechanism of inheritance of asexual organisms. Their distribution into isotopism classes is uniquely related with the mutation of alleles in non-Mendelian Genetics. This paper deals with such a distribution by means of Computational Algebraic Geometry. We focus in particular on the two-dimensional case, which is related to the asexual reproduction processes of diploid organisms. Specifically, we determine the existence of four isotopism classes, whatever the base field is, and we characterize the corresponding isomorphism classes.
description: 23 pages, 2 tables
The Markov Memory for Generating Rare Events
Creators: name: Aghamohammadi, C.
name: Crutchfield, J. P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Complexity (cs.CC)
subject: Information Theory (cs.IT)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We classify the rare events of structured, memoryful stochastic processes and use this to analyze sequential and parallel generators for these events. Given a stochastic process, we introduce a method to construct a new process whose typical realizations are a given process' rare events. This leads to an expression for the minimum memory required to generate rare events. We then show that the recently discovered classical-quantum ambiguity of simplicity also occurs when comparing the structure of process fluctuations.
description: 10 pages, 5 figures; http://csc.ucdavis.edu/~cmg/compmech/pubs/mmgre.htm
Development of a whisker sensor based mobile robot for object recognition
Creators: name: Wijaya, Jaury Adi.
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.
The LBV HR Car has a partner: Discovery of a companion with the VLTI
Creators: name: Boffin, Henri M. J.
name: Rivinius, Thomas
name: Merand, Antoine
name: Mehner, Andrea
name: LeBouquin, Jean-Baptiste
name: Pourbaix, Dimitri
name: de Wit, Willem-Jan
name: Martayan, Christophe
name: Guieu, Sylvain
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Luminous Blue Variables (LBVs) are massive stars caught in a post-main sequence phase, during which they are losing a significant amount of mass. As, on one hand, it is thought that the majority of massive stars are close binaries that will interact during their lifetime, and on the other, the most dramatic example of an LBV, Eta Car, is a binary, it would be useful to find other binary LBVs. We present here interferometric observations of the LBV HR Car done with the AMBER and PIONIER instruments attached to ESO's Very Large Telescope Interferometer (VLTI). Our observations, spanning two years, clearly reveal that HR Car is a binary star. It is not yet possible to constrain fully the orbit, and the orbital period may lie between a few years and several hundred years. We derive a radius for the primary in the system and possibly resolve as well the companion. The luminosity ratio in the H-band between the two components is changing with time, going from about 6 to 9. We also tentatively detect the presence of some background flux which remained at the 2% level until January 2016, but then increased to 6% in April 2016. Our AMBER results show that the emission line forming region of Br gamma is more extended than the continuum emitting region as seen by PIONIER and may indicate some wind-wind interaction. Most importantly, we constrain the total masses of both components, with the most likely range being 33.6 and 45 solar masses. Our results show that the LBV HR Car is possibly an Eta Car analog binary system with smaller masses, with variable components, and further monitoring of this object is definitively called for.
description: A&A, in press
Intrinsic large gap quantum anomalous Hall insulators in La$X$ ($X$=Br, Cl, I)
Creators: name: Dolui, Kapildeb
name: Ray, Sujay
name: Das, Tanmoy
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report a theoretical prediction of a new class of bulk and intrinsic quantum Anomalous Hall (QAH) insulators La$X$ ($X$=Br, Cl, and I) via relativistic first-principle calculations. We find that these systems are innate long-ranged ferromagnets which, with the help of intrinsic spin-orbit coupling, become QAH insulators. A low-energy multiband tight binding model is developed to understand the origin of the QAH effect. Finally integer Chern number is obtained via Berry phase computation for each two-dimensional plane. These materials have the added benefit of a sizable band gap of as large as $\sim$ 25 meV, with the flexibility of enhancing it to above 75 meV via strain engineering. The synthesis of La$X$ materials will provide the impurity-free single crystals and thin-film QAH insulators for versatile experiments and functionalities.
description: 16 pages (including appendix and supp. mat)
Exceptional points in anisotropic planar microcavities
Creators: name: Richter, Steffen
name: Michalsky, Tom
name: Sturm, Chris
name: Rosenow, Bernd
name: Grundmann, Marius
name: Schmidt-Grund, Rüdiger
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Planar microcavities allow the control and manipulation of spin-polarization, manifested in phenomena like the optical spin Hall effect due to the intrinsic polarization mode splitting. Here, we study a transparent microcavity with broken rotational symmetry, realized by aligning the optical axis of a uniaxial cavity material in the cavity plane. We demonstrate that the in-plane optical anisotropy gives rise to exceptional points in the dispersion relation, which occur pair-wise, are circularly polarized, and are cores of polarization vortices. These exceptional points are a result of the non-Hermitian character of the system, and are in close relationship to singular optical axes in absorptive biaxial systems.
Orphan γ-ray flares from relativistic blobs encountering luminous stars
Creators: name: Banasiński, P.
name: Bednarek, W.
name: Sitarek, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We propose that γ -rays in blazars can be produced during encounters of relativistic blobs of plasma with radiation field produced by luminous stars within (or close to) the jet. The blob is expected to contain relativistic electrons which comptonize stellar radiation to the GeV-TeV energies. Produced γ -rays can initiate the Inverse Compton e+/- pair cascade in the stellar radiation. We propose that such a scenario can be responsible for the appearance of the so-called orphan γ -ray flares. We show that the relativistic blob/luminous star collision model can explain the appearance of the extreme orphan γ -ray flare observed in the GeV and sub-TeV energy range from the flat spectrum radio quasar PKS 1222+21.
description: 5 pages, accepted for publication in MNRAS Letters
The evolution of white dwarfs resulting from helium-enhanced, low-metallicity progenitor stars
Creators: name: Althaus, Leandro G.
name: De Gerónimo, Francisco C.
name: Córsico, Alejandro H.
name: Torres, Santiago
name: García--Berro, Enrique
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Some globular clusters host multiple stellar populations with different chemical abundance patterns. This is particularly true for $ω$ Centauri, which shows clear evidence of a helium- enriched sub-population characterized by a helium abundance as high as $Y= 0.4$. We present a whole and consistent set of evolutionary tracks from the ZAMS to the white dwarf stage appropriate for the study of the formation and evolution of white dwarfs resulting from the evolution of helium-rich progenitors. Different issues of the white dwarf evolution and their helium-rich progenitors have been explored. In particular, the final mass of the remnants, the role of overshooting during the thermally-pulsing phase, and the cooling of the resulting white dwarfs differ markedly from the evolutionary predictions of progenitor stars with standard initial helium abundance. Finally, the pulsational properties of the resulting white dwarfs are also explored. We find that, for the range of initial masses explored in this paper, the final mass of the helium-rich progenitors is markedly larger than the final mass expected from progenitors with the usual helium abundance. We also find that progenitors with initial mass smaller than $M_\star \simeq 0.65\,M_\odot$ evolve directly into helium-core white dwarfs in less than 14~Gyr, and that for larger progenitor masses the evolution of the resulting low-mass carbon-oxygen white dwarfs is dominated by residual nuclear burning. For helium-core white dwarfs, we find that they evolve markedly faster than their counterparts coming from standard progenitors. Also, in contrast with what occurs for white dwarfs resulting from progenitors with the standard helium abundance, the impact of residual burning on the cooling time of white dwarfs is not affected by the occurrence of overshooting during the thermally-pulsing phase of progenitor stars.
description: 11 pages, 10 figures, 1 table. To be published in Astronomy and Astrophysics
Symmetry Fractionalization in Two Dimensional Topological Phases
Creators: name: Chen, Xie
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Symmetry fractionalization describes the fascinating phenomena that excitations in a 2D topological system can transform under symmetry in a fractional way. For example in fractional quantum Hall systems, excitations can carry fractional charges while the electrons making up the system have charge one. An important question is to understand what symmetry fractionalization (SF) patterns are possible given different types of topological order and different symmetries. A lot of progress has been made recently in classifying the SF patterns, providing deep insight into the strongly correlated experimental signatures of systems like spin liquids and topological insulators. We review recent developments on this topic. First, it was shown that the SF patterns need to satisfy some simple consistency conditions. More interesting, it was realized that some seemingly consistent SF patterns are actually `anomalous', i.e. they cannot be realized in strictly 2D systems. We review various methods that have been developed to detect such anomalies. Applying such an understanding to 2D spin liquid allows one to enumerate all potentially realizable SF patterns and propose numerical and experimental probing methods to distinguish them. On the other hand, the anomalous SF patterns were shown to exist on the surface of 3D systems and reflect the nontrivial order in the 3D bulk. We review examples of this kind where the bulk states are topological insulators, topological superconductors, or have other symmetry protected topological orders.
description: Review article on symmetry fractionalization. Comments are welcome
Supplementary document for High-efficiency, polarization-independent 1400 lines/mm retroreflective metagrating with cascaded nano-optical modes - 5959159.pdf
Creators: name: Qi, Hongguang
name: Xie, Lingyun
name: Zhu, Jingyuan
name: Wei, Zeyong
name: Jiao, Hongfei
name: SMIRNOV, YURY
name: Tikhonravov, Alexander
name: Cheng, Xinbin
name: Wang, Zhanshan
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: The details about simulations, analysis of merged-parameter fabrication tolerance, fabrication, the diffraction e?iciency of fabricated metagrating.
Self-Optimized Superconductivity Attainable by Interlayer Phase Separation at Cuprate Interfaces
Creators: name: Misawa, Takahiro
name: Nomura, Yusuke
name: Biermann, Silke
name: Imada, Masatoshi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Stabilizing superconductivity at high temperatures and elucidating its mechanism have long been major challenges of materials research in condensed matter physics. Meanwhile, recent progress in nanostructuring offers unprecedented possibilities for designing novel functionalities. Above all, thin films of cuprate and iron-based high-temperature superconductors exhibit remarkably better superconducting characteristics (e.g. higher critical temperatures) than in the bulk, but the underlying mechanism is still not understood. Solving microscopic models suitable for cuprates, here, we demonstrate that at an interface between a Mott insulator and an overdoped non-superconducting metal, the superconducting amplitude stays always pinned at the optimum achieved in the bulk, independently of the carrier concentration in the metal. This is in contrast to the dome-like dependence in bulk superconductors, but consistent with the astonishing independence of the critical temperature from the carrier density x observed at interfaces of La2CuO4 and La2-xSrxCuO4. We furthermore identify a self-organization mechanism as responsible for the pinning at the optimum amplitude: An emergent electronic structure induced by interlayer phase separation eludes bulk phase separation and inhomogeneities that would kill superconductivity in the bulk. Thus, interfaces provide an ideal tool to enhance and stabilize superconductivity. This interfacial example opens up further ways of shaping superconductivity by suppressing competing instabilities, with direct perspectives for designing devices.
description: 27 pages, 5 figures
Stability and Optimal Control of a Delayed HIV Model
Creators: name: Rocha, Diana
name: Silva, Cristiana J.
name: Torres, Delfim F. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optimization and Control (math.OC)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Mathematics
subject: FOS: Biological sciences
subject: 34C60, 49K15, 92D30

description: We propose and investigate a delayed model that studies the relationship between HIV and the immune system during the natural course of infection and in the context of antiviral treatment regimes. Sufficient criteria for local asymptotic stability of the infected and viral free equilibria are given. An optimal control problem with time delays both in state variables (incubation delay) and control (pharmacological delay) is then formulated and analyzed, where the objective consists to find the optimal treatment strategy that maximizes the number of uninfected $CD4^{+}$ T cells as well as CTL immune response cells, keeping the drug therapy as low as possible.
description: This is a preprint of a paper whose final and definite form is with 'Mathematical Methods in the Applied Sciences', ISSN 0170-4214. Submitted 05-July-2016; accepted 24-Sept-2016
Policy Design for Controlling Set-Point Temperature of ACs in Shared Spaces of Buildings
Creators: name: Tushar, Wayes
name: Tao, Wang
name: Lan, Lan
name: Xu, Yunjian
name: Withanage, Chathura
name: Yuen, Chau
name: Wood, Kristin L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Air conditioning systems are responsible for the major percentage of energy consumption in buildings. Shared spaces constitute considerable office space area, in which most office employees perform their meetings and daily tasks, and therefore the ACs in these areas have significant impact on the energy usage of the entire office building. The cost of this energy consumption, however, is not paid by the shared space users, and the AC's temperature set-point is not determined based on the users' preferences. This latter factor is compounded by the fact that different people may have different choices of temperature set-points and sensitivities to change of temperature. Therefore, it is a challenging task to design an office policy to decide on a particular set-point based on such a diverse preference set. As a result, users are not aware of the energy consumption in shared spaces, which may potentially increase the energy wastage and related cost of office buildings. In this context, this paper proposes an energy policy for an office shared space by exploiting an established temperature control mechanism. In particular, we choose meeting rooms in an office building as the test case and design a policy according to which each user of the room can give a preference on the temperature set-point and is paid for felt discomfort if the set-point is not fixed according to the given preference. On the other hand, users who enjoy the thermal comfort compensate the other users of the room. Thus, the policy enables the users to be cognizant and responsible for the payment on the energy consumption of the office space they are sharing, and at the same time ensures that the users are satisfied either via thermal comfort or through incentives. The policy is also shown to be beneficial for building management. Through experiment based case studies, we show the effectiveness of the proposed policy.
description: Journal paper accepted in Energy & Buildings (Elsevier)
Nonlinear $\arcsin$-electrodynamics and asymptotic Reissner-Nordström black holes
Creators: name: Kruglov, S. I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A model of nonlinear electrodynamics with the Lagrangian density ${\cal L} = -(1/β)\arcsin(βF_{μν}F^{μν}/4)$ is proposed. The scale invariance and the dual invariance of electromagnetic fields are broken in the model. In the limit $β\rightarrow 0$ one comes to Maxwell's electrodynamics and the scale and dual invariances are recovered. We investigate the effect of coupling electromagnetic fields with the gravitational field. The asymptotic black hole solution is found which is similar to the Reissner-Nordström solution. We obtain corrections to Coulomb's law and to the Reissner-Nordström solution in the model proposed. The existence of the regular asymptotic at $r\rightarrow 0$ was demonstrated. The mass of the black hole is calculated possessing the electromagnetic origin. It was shown that there are not superluminal fluctuations and principles of causality and unitarity take place.
description: 19 pages, 4 figures, to appear in Ann. Phys. (Berlin)
Frequency-comb based collinear laser spectroscopy of Be for nuclear structure investigations and many-body QED tests
Creators: name: Krieger, A.
name: Nörtershäuser, W.
name: Geppert, Ch.
name: Blaum, K.
name: Bissell, M. L.
name: Frömmgen, N.
name: Hammen, M.
name: Kreim, K.
name: Kowalska, M.
name: Krämer, J.
name: Neugart, R.
name: Neyens, G.
name: Sánchez, R.
name: Tiedemann, D.
name: Yordanov, D. T.
name: Zakova, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Absolute transition frequencies of the $2s\,^2{\rm{S}}_{1/2}$ $\rightarrow$ $2p\,^2{\rm{P}}_{1/2,3/2}$ transitions in Be$^+$ were measured with a frequency comb in stable and short-lived isotopes at ISOLDE (CERN) using collinear laser spectroscopy. Quasi-simultaneous measurements in copropagating and counterpropagating geometry were performed to become independent from acceleration voltage determinations for Doppler-shift corrections of the fast ion beam. Isotope shifts and fine structure splittings were obtained from the absolute transition frequencies with accuracies better than 1\,MHz and led to a precise determination of the nuclear charge radii of $^{7,10-12}$Be relative to the stable isotope $^9$Be. Moreover, an accurate determination of the $2p$ fine structure splitting allowed a test of high-precision bound-state QED calculations in the three-electron system. Here, we describe the laser spectroscopic method in detail, including several tests that were carried out to determine or estimate systematic uncertainties. Final values from two experimental runs at ISOLDE are presented and the results are discussed.
description: 28 pages, 12 figures
Modelling Scientific Processes with the m4i Ontology
Creators: name: Iglezakis, Dorothea
name: Fuhrmans, Marc
name: Lanza, Giacomo
name: Terzijska, Džulia
name: Arndt, Susanne
name: Leimer, Sophia
name: Hickmann, Johanna
Publisher: name: Zenodo
Year: 2023
Subjects: Metadata
Ontology
Engineering
Provenance tracking

description: Slide presentation for the paper 'Modelling Scientific Processes With the m4i Ontology' published in the proceedings of CoRDI 2023:
description: The authors (Metadata4Ing Workgroup) would like to thank the Federal Government and the Heads of Government of the Länder, as well as the Joint Science Conference (GWK), for their funding and support within the framework of the NFDI4Ing consortium. Funded by the German Research Foundation (DFG) - project number 442146713.
Kapazitiv gekoppelte Plasmastrahler zur Erzeugung von 222 nm Excimerstrahlung mit gedruckten Elektrodenstrukturen : Krypton-Chlorid- Flachlampen zur flächigen Erzeugung von UV-Strahlung
Creators: name: Alemu, Biruk Tefefera
name: Gehring, Tim
name: Huber, Robert
name: Anantharaman, Raghuraman
name: Jin, Qihao
name: Dycke, Jan
name: Kling, Rainer
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2023

description: Kapazitiv gekoppelte Dielektrisch Behinderte Entladungen (DBE) sind weit verbreitet in verschiedenen Anwendungen. So werden diese beispielsweise bei der UV- und Ozon-Erzeugung eingesetzt [1]. Typische DBEs bestehen aus einem Gasraum, welcher durch ein Dielektrikum von den Anregungselektroden abgetrennt ist. Hierbei spielt die Elektrodenstruktur in Bezug auf die Abschattung der erzeugten Strahlung, sowie in Bezug der elektrischen Anregungscharakteristik eine bedeutende Rolle [2]. Um auch komplexe Elektrodenstrukturen erzeugen zu können, wurden bisher Lithografie-Prozesse genutzt. Allerdings sind erste Publikationen mit gedruckten Elektroden zu finden [3]. Auch am Lichttechnischen Institut des Karlsruher Instituts für Technologie wurden erste Versuche mit komplexen gedruckten Elektrodenstrukturen durchgeführt. Die Elektrodenstrukturen wurden an einem Aerosol-Jet Drucker (AJ 5X, Optomec) hergestellt. Dabei wird eine auf Silbernanopartikel (JS-A221AE, NovaCentrix) basierende Tinte in einem Ultraschallbad vernebelt. Dieser Tintennebel wird mithilfe eines Stickstoffstroms zur Druckerdüse transportiert und durch einen weiteren einhüllenden Stickstoffstrom komprimiert und fokussiert. Dadurch kann eine minimale Strukturgröße von 10 µm erreicht werden. Aufgrund des maskenlosen Digitaldrucks eignet sich diese Verfahren zur schnellen Entwicklung und Herstellung komplexer Strukturen in 2D und 3D. Um die Tinte im Anschluss zu sintern wurde photonisches Flashsintern (PulseForge 1200, NovaCentrix) verwendet. Dabei erzeugt ein kurzer ochenergetische Blitz für einige hundert Mikrosekunden mehrere 100°C in der optisch absorbierenden Tinte und initiiert den Sinterprozess. Die so gefertigten Strahlerkörper mit Abmessung (8cm*8cm*0.6cm) wurden mit einer Krypton-Chlorid-Mischung gefüllt und als DBE-Excimerstrahler betrieben. Die erzeugte 222 nm Excimerstrahlung, sowie die elektrischen Parameter der Entladung wurden vermessen und der Strahler charakterisiert. [1] Lomaev, M.I.; Sosnin, E.A.; Tarasenko, V.F. Excilamps and their applications. Progress in Quantum Electronics 2012 , 36, 51–97. https://doi.org/10.1016/j.pquantelec.2012.03.003. [2] Finantu-Dinu, E. Dielektrisch behinderte Entladungen: Grundlegende Untersuchungen und Anwendungsbeispiele; VDM Verl. Müller: Saarbrücken, 2007 [3] Sato, S.; Enokido, T.; Ashikawa, K.; Matsubara, M.; Kanie, K.; Ohnishi, N. Development of a flexible dielectric-barrier-discharge plasma actuator fabricated by inkjet printing using silver nanoparticles-based ink. Sensors and Actuators A: Physical 2021 , 330, 112823. https://doi.org/10.1016/j.sna.2021.112823.
Scattering effect on entanglement propagation in RCFTs
Creators: name: Numasawa, Tokiro
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper we discuss the scattering effect on entanglement propagation in RCFTs. In our setup, we consider the time evolution of excited states created by the insertion of many local operators. Our results show that because of the finiteness of quantum dimension, entanglement is not changed after the scattering in RCFTs. In this mean, entanglement is conserved after the scattering event in RCFTs, which reflects the integrability of the system. Our results are also consistent with the free quasiparticle picture after the global quenches.
description: 26 pages, Latex, 13 figures, reference added
Boundary-induced spin density waves in linear Heisenberg antiferromagnetic spin chains with $\mathbf{S \ge 1}$
Creators: name: Dey, Dayasindhu
name: Kumar, Manoranjan
name: Soos, Zoltán G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Linear Heisenberg antiferromagnets (HAFs) are chains of spin-$S$ sites with isotropic exchange $J$ between neighbors. Open and periodic boundary conditions return the same ground state energy in the thermodynamic limit, but not the same spin $S_G$ when $S \ge 1$. The ground state of open chains of N spins has $S_G = 0$ or $S$, respectively, for even or odd N. Density matrix renormalization group (DMRG) calculations with different algorithms for even and odd N are presented up to N = 500 for the energy and spin densities $ρ(r,N)$ of edge states in HAFs with $S = 1$, 3/2 and 2. The edge states are boundary-induced spin density waves (BI-SDWs) with $ρ(r,N)\propto(-1)^{r-1}$ for $r=1,2,\ldots N$. The SDWs are in phase when N is odd, out of phase when N is even, and have finite excitation energy $Γ(N)$ that decreases exponentially with N for integer $S$ and faster than 1/N for half integer $S$. The spin densities and excitation energy are quantitatively modeled for integer $S$ chains longer than $5 ξ$ spins by two parameters, the correlation length $ξ$ and the SDW amplitude, with $ξ= 6.048$ for $S = 1$ and 49.0 for $S = 2$. The BI-SDWs of $S = 3/2$ chains are not localized and are qualitatively different for even and odd N. Exchange between the ends for odd N is mediated by a delocalized effective spin in the middle that increases $|Γ(N)|$ and weakens the size dependence. The nonlinear sigma model (NL$σ$M) has been applied the HAFs, primarily to $S = 1$ with even N, to discuss spin densities and exchange between localized states at the ends as $Γ(N) \propto (-1)^N \exp(-N/ξ)$...
description: 11 pages, 10 figures
AlphaFold predicted models of all ABC transporters in Bacillus subtilis
Creators: name: Orlando, Benjamin
name: Mahendran, Ashwin
Publisher: name: Zenodo
Year: 2024
Subjects: subject: Structural biology

description: Provided is a zip file containing atomic coordinates in .pdb format for AlphaFold predictions of all ABC transporter complexes in the model organism Bacillus subtilis. Contained within the .zip file are two subfolders for exporters and importers, and within each subfolder the ABC transporter complexes are organized into discrete classes based on predicted topology/folds.

*Note: Within the manuscript a complex is called MsmXXRhiFGL, this complex is synonymous with the MsmXYesQPO file in the Zenodo record.
Performance of swarm intelligence based routing algorithm in fixed broadband wireless networks
Creators: name: Fardipur, Parisa.
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.
Large Electronic Anisotropy and Enhanced Chemical Activity of Highly Rippled Phosphorene
Creators: name: Kistanov, Andrey A.
name: Cai, Yongqing
name: Zhou, Kun
name: Dmitriev, Sergey V.
name: Zhang, Yong-Wei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the electronic structure and chemical activity of rippled phosphorene induced by large compressive strains via first-principles calculation. It is found that phosphorene is extraordinarily bendable, enabling the accommodation of ripples with large curvatures. Such highly rippled phosphorene shows a strong anisotropy in electronic properties. For ripples along the armchair direction, the band gap changes from 0.84 to 0.51 eV for the compressive strain up to -20% and further compression shows no significant effect, for ripples along the zigzag direction, semiconductor to metal transition occurs. Within the rippled phosphorene, the local electronic properties, such as the modulated band gap and the alignments of frontier orbitals, are found to be highly spatially dependent, which may be used for modulating the injection and confinement of carriers for optical and photovoltaic applications. The examination of the interaction of a physisorbed NO molecule with the rippled phosphorene under different compressive strains shows that the chemical activities of the phosphorene are significantly enhanced at the top and bottom peaks of the ripples, indicated by the enhanced adsorption and charge transfer between them. All these features can be ascribed to the effect of curvatures, which modifies the orbital coupling between atoms at the ripple peaks.
A Model of Pathways to Artificial Superintelligence Catastrophe for Risk and Decision Analysis
Creators: name: Barrett, Anthony M.
name: Baum, Seth D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: An artificial superintelligence (ASI) is artificial intelligence that is significantly more intelligent than humans in all respects. While ASI does not currently exist, some scholars propose that it could be created sometime in the future, and furthermore that its creation could cause a severe global catastrophe, possibly even resulting in human extinction. Given the high stakes, it is important to analyze ASI risk and factor the risk into decisions related to ASI research and development. This paper presents a graphical model of major pathways to ASI catastrophe, focusing on ASI created via recursive self-improvement. The model uses the established risk and decision analysis modeling paradigms of fault trees and influence diagrams in order to depict combinations of events and conditions that could lead to AI catastrophe, as well as intervention options that could decrease risks. The events and conditions include select aspects of the ASI itself as well as the human process of ASI research, development, and management. Model structure is derived from published literature on ASI risk. The model offers a foundation for rigorous quantitative evaluation and decision making on the long-term risk of ASI catastrophe.