cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A wave prediction system for real time sea state forecasting in Black Sea
Creators: name: Kortcheva, Anna
name: Dimitrova, Marieta
name: Galabov, Vasko
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: This paper briefly describes the existing operational system for wind waves forecasting in the Black Sea. It is a system of coupled atmospheric and wave numerical models aiming at a detailed and accurate sea state forecast on an operational level. The system was created at the National Institute of Meteorology and Hydrology Bulgarian Academy of Sciences (NIMH-BAS) in collaboration with the Meteorological Office of France - Meteo-France. The present work introduces the use of wave models at NIMH-BAS and shows the model results, as well as an intercomparison. The numerical wave models VAG, WAVEWATCH III and WAM, developed by the research groups of Meteo-France, NCEP and WAMDI, have been adopted for the Black Sea area and implemented at the NIMH-BAS to allow real-time forecasts and hindcasts of the waves in the Black Sea. The coupling of two atmospherics models ARPEGE and ALADIN has been used to force the wave models. The operational use has indicated that the system is suitable for general purposes and the results are generally satisfactory. The wave models are evaluated through a comparison with the altimeter satellite measurements. A comparison between the model results and the altimeter data from the satellites ERS1/2 and ENVISAT demonstrates that the models call fairly reproduces the observed characteristics of waves.
description: preprint of an article, published 2009 in Bulgarian Journal of Meteorology and Hydrology (BJMH)
Najas minor Host
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: E.pooides Pal. (E.minor Host) Cat. 388. l: Bahnhof Vouvry (J.); Bois Noir (Garns); Bahnhof Vernayaz (J.). - 3: Bahnhof Leuk (Be- cherer 1941); Bahnhof Turtmann (idem 1941); Visp (Thellung, Christ, Zwicky); BahnhofBrig (J., Becherer). - 3a: Simplonstrasse zwischenGondound der italienischenGrenze (Becherer).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
title: Expression of Genes Involved in a Radiation-Induced Bystander Effect
Creators: name: Furlong, Hayley
Publisher: name: Technological University of Dublin
Year: 2011

description: The radiation induced bystander effect is relevant to carcinogenesis, it may have significant implications for risk estimation for radiation exposure. Currently the mechanisms and cellular events are the subject of intense investigation, because little is known. It is thought that the radiation induced bystander response is due to a bystander factor secreted in the medium post irradiation. However the biological nature of this factor is currently unknown, but it is thought to be a protein of some sort that may be involved in the apoptosis cascade. Materials and Methods: HaCaT epithelial cells were used in this study and exposed to 0, 0.5 and 0.05Gy low doses of ionising radiation (IR). The medium was harvested from the cultures post-IR and placed on recipient HaCaT cells for different time points. RNA was extracted from the cells using the TriReagent protocol and stored for subsequent gene expression studies. Specific genes were selected for this study, in particular those involved in the apoptotic cascade. Primer design and primer optimisation methods were carried out to establish definite primer temperatures for the subsequent gene expression studies, using Real-Time PCR. Results: Preliminary gene expression data will be shown along with primer optimisation of the specific apoptosis genes under investigation in this study. Currently a paper is in progress detailing this novel data. Discussion: This data could contribute to the discovery of the molecular mechanisms involved in the production of a radiation induced bystander effect and will therefore have potential clinical relevance for patients undergoing radiotherapy treatment.
Uncertainty analysis for the coefficient of band-to-band absorption of crystalline silicon
Creators: name: Schinke, Carsten
name: Peest, Peter Christian
name: Schmidt, Jan
name: Brendel, Rolf
name: Bothe, Karsten
name: Vogt, Malte R.
name: Kröger, Ingo
name: Winter, Stefan
name: Schirmacher, Alfred
name: Lim, Siew
name: Nguyen, Hieu T.
name: MacDonald, Daniel
Publisher: name: Melville : AIP Publishing LLC
Year: 2015
Subjects: subject: crystalline silicon
subject: silicon
subject: absorption coefficient
subject: error analysis
subject: solar cells
subject: photoluminescence
subject: Photovoltaic
subject: kristallines Silizium
subject: c-Si
subject: Silizium
subject: Absorptionskoeffizient
subject: Fehleranalyse
subject: Solarzelle
subject: Photovoltaikzelle
subject: Photolumineszenz
subject: Fotolumineszenz
subject: Photovoltaik
subject: Silicium
subject: Absorptionskoeffizient
subject: Fehleranalyse
subject: Solarzelle
subject: Photolumineszenz
subject: Fotovoltaik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Metallic Zn nanodisks with hexagonal morphology were obtained onto glass substrate under vacuum thermal evaporation. A thermal characterization of Zn nanodiks showed a lower oxidation temperature than source powder Zn. Different thermal treatment on Zn nanodisks played an important role on the morphology, crystal size and surface vibrational modes of ZnO. The growth of ZnO nanoneedles started at the edge of metallic zinc hexagonal structures according with SEM images, the higher temperature the longer needles were grown. XRD diffractogram confirmed the wurtzite structure of ZnO with metallic nuclei. A wide band between 530 and 580 cm(-1) of Raman scattering corresponded at surface vibrational modes not observed at higher temperature.
title: Mixed modules in L
Creators: name: Gobel, R
name: Goldsmith , Brendan
Publisher: name: Technological University of Dublin
Year: 1989

description: By assuming the set-theoretic hypothesis V = L we show that, for a large class of rings R, there exist, for any regular not weekly compact cardinals K, strongly k-cyclic mixed R-modules having endomorphism algebra isomorphic to the split extension of the R-algebra A by the ideal of bounded endomorphism provided A is free qua R-module and K./Az/
title: Rational Generalised Moonshine from Orbifolds
Creators: name: Ivanov, Rossen
name: Tuite, Michael
Publisher: name: Technological University of Dublin
Year: 2000

description: Frenkel, Lepowsky and Meurman constructed the Moonshine Module (MM) as a Z2 orbifold of the Leech Lattice Meromorphic Conformal field theory. The group of automorphisms of this theory is the 'Monster Group' M - the largest finite sporadic simple group (with order ~ 8. 1053 ). 'Monstrous Moonshine' is the famous observation that the Thompson series, corresponding to each class of M, is a hauptmodule for some genus zero fixing group. Norton considered Generalised Moonshine Functions (GMF), depending on two commuting Monster elements, and suggested that they are also hauptmodules. Using meromorphid Abelian orbifoldings of MM we identify the singularity structure of the GMF in some nontrivial cases so that the genus zero property is demonstrated and the corresponding genus zero fixing group is identified.
Coalitional Presidentialism in Comparative Perspective. Minority Presidents in Multiparty Systems
Creators: name: Köker, Philipp
Publisher: name: Milton Park : Taylor & Francis
Year: 2019
Subjects: subject: coalitional presidentialism
subject: presidentialism
subject: Europe-Asia Studies
subject: Präsidentialismus
subject: Lateinamerika
subject: Afrika
subject: Eurasien
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::320 | Politik

description: Book Review: Chaisty, Paul, Cheeseman, Nic & Power, Timothy J. Coalitional Presidentialism in Comparative Perspective. Minority Presidents in Multiparty Systems. Oxford: Oxford University Press, 2018, xiii + 267pp. £60.00 h/b.
Brandentstehung in Niederspannungsanlagen
Creators: name: Dahmouni, Youssef
Publisher: name: Hannover : Universität Hannover
Year: 1999
Subjects: subject: Fire origins
subject: low-voltage appliance
subject: insulation failure
subject: Brandursache
subject: Elektrische Isolierung
subject: Niederspannungsanlage
subject: Technischer Fehler
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: [no abstract]
Radar orthogonality and radar length in Finsler and metric spacetime geometry
Creators: name: Pfeifer, Christian
Publisher: name: College Park, MD : American Physical Society
Year: 2014
Subjects: subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The radar experiment connects the geometry of spacetime with an observers measurement of spatial length. We investigate the radar experiment on Finsler spacetimes which leads to a general definition of radar orthogonality and radar length. The directions radar orthogonal to an observer form the spatial equal time surface an observer experiences and the radar length is the physical length the observer associates to spatial objects. We demonstrate these concepts on a forth order polynomial Finsler spacetime geometry which may emerge from area metric or premetric linear electrodynamics or in quantum gravity phenomenology. In an explicit generalization of Minkowski spacetime geometry we derive the deviation from the Euclidean spatial length measure in an observers rest frame explicitly. © 2014 American Physical Society.
Three Layer Hierarchical Model for Chord
Creators: name: Imtiaz, Waqas Ahmed
name: Shil, Shimul
name: Rahamn, A. K. M Mahfuzur
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Increasing popularity of decentralized P2P architecture emphasizes on the need to come across an overlay structure that can provide efficient content discovery mechanism, accommodate high churn rate and adapt to failures. Traditional p2p systems are not able to solve the problems relating scalability and high churn rates. Hierarchical model were introduced to provide better fault isolation, effective bandwidth utilization, a superior adaptation to the underlying physical network and a reduction of the lookup path length as additional advantages. It is more efficient and easier to manage than traditional p2p networks. This paper discusses a further step in p2p hierarchy via 3-layers hierarchical model with distributed database architecture in different layer, each of which is connected through its root. The peers are divided into three categories according to their physical stability and strength. They are Ultra Super-peer, Super-peer and Ordinary Peer and we assign these peers to first, second and third level of hierarchy respectively. Peers in a group in lower layer have their own local database which hold as associated super-peer in middle layer and access the database among the peers through user queries. In our 3-layer hierarchical model for DHT algorithms, we used an advanced Chord algorithm with optimized finger table which can remove the redundant entry in the finger table in upper layer that influences the system to reduce the lookup latency. Our research work finally resulted that our model really provides faster search since the network lookup latency is decreased by reducing the number of hops. The peers in such network then can contribute with improve functionality and can perform well in P2P networks.
description: 6 Pages, Journal
title: Eddy Structures Induced Within a Wedge by a Honing Circular Arc
Creators: name: Hills, C.P
Publisher: name: Technological University of Dublin
Year: 2001

description: In this paper we outline an expeditious numerical procedure to calculate the Stokes flow in a corner due to the rotation of a scraping circular boundary. The method is also applicable to other wedge geometries. We employ a collocation technique utilising a basis of eddy (similarity) functions introduced by Moffatt (1964) that allows us to satisfy automatically the governing equations for the streamfunction and all the boundary conditions on the surface of the wedge. The circular honing problem thereby becomes one-dimensional requiring only the satisfaction of conditions on the circular boundary. The advantage of using the Moffatt eddy functions as a basis in wedge geometry is clear and the technique greatly reduces many of the concerns with accuracy and time expenditure associated with alternative numerical methods. An investigation of the details of the eddy structure for our particular geometry is presented.
Measurements of spectral snow albedo at Neumayer, Antarctica
Creators: name: Wuttke, Sigrid
name: Seckmeyer, Gunther
name: König-Langlo, Gert
Publisher: name: Göttingen : Copernicus
Year: 2006
Subjects: subject: polar meteorology
subject: radiative process
subject: atmospheric composition
subject: atmospheric structure
subject: transmission of radiation
subject: scattering of radiation
subject: meteorology
subject: atmospheric dynamics
subject: inhomogeneous surface albedo
subject: radiative-transfer
subject: uv irradiance
subject: erythemal irradiance
subject: davis station
subject: sea-ice
subject: ultraviolet
subject: spectroradiometers
subject: eflectance
subject: model
subject: Antarctica
subject: Polarmeteorologie
subject: Strahlungsprozess
subject: Zusammensetzung
subject: Struktur
subject: Atmosphäre
subject: Strahlungsübertragung
subject: Strahlungsstreuung
subject: Meteorologie
subject: Atmosphärische Dynamik
subject: Antarktis
subject: Meteorologie
subject: Zusammensetzung
subject: Struktur
subject: Atmosphäre
subject: Strahlung
subject: Ultraviolett
subject: Albedo
subject: Antarktis
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften
subject: 551

description: Spectral albedo in high resolution, from 290 to 1050 nm, has been measured at Neumayer, Antarctica, (70 390 S, 8 150 W) during the austral summer 2003/2004. At 500 nm, the spectral albedo nearly reaches unity, with slightly lower values below and above 500 nm. Above 600 nm, the spectral albedo decreases to values between 0.45 and 0.75 at 1000 nm. For one cloudless case an albedo up to 1.01 at 500 nm could be determined. This can be explained by the larger directional component of the snow reflectivity for direct incidence, combined with a slightly mislevelled sensor and the snow surface not being perfectly horizontal. A possible explanation for an observed decline in albedo is an increase in snow grain size. The theoretically predicted increase in albedo with increasing solar zenith angle (SZA) could not be observed. This is explained by the small range of SZA during albedo measurements, combined with the effect of changing snow conditions outweighing the effect of changing SZA. The measured spectral albedo serves as input for radiative transfer models, describing radiation conditions in Antarctica.
Evaluation of (De-)Centralized IT technologies in the fields of Cyber-Physical Production Systems
Creators: name: Große, Nick
name: Leisen, David
name: Gürpinar, Tan
name: Forsthövel, Robert Schulze
name: Henke, Michael
name: Ten Hompel, Michael
Publisher: name: Hannover : publish-Ing.
Year: 2020
Subjects: subject: Cyber-physical Production System
subject: Blockchain
subject: Cloud Computing
subject: Edge Computing
subject: IT Infrastructure
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: In the course of the digital transformation, organizations are not only facing increasing volatility of the markets, but also increasing customer requirements and thus an increasing complexity in production and logistics systems. Therefore, production plants need to become more flexible by transforming conventional production systems to Cyber-physical Production Systems (CPPS). CPPS allow organizations to dynamically react to fluctuations in demand and markets and to introduce new product lines quickly and effectively. The challenge in implementing CPPS is to handle and store relevant data streams between Cyber-physical objects in a secure but transparent way. As CPPS involve a high level of decentralization, the data storage can either be combined with centralized IT-solutions like a Cloud or utilize decentralized IT-technologies like Edge Computing or Distributed Ledger Technologies (DLT) like Blockchains. The paper addresses the suitability of centralized and decentralized technologies in terms of dealing with data streams in the fields of CPPS. For this purpose, based on a paper exploration, appropriate evaluation criteria are derived, followed by a comparison of exemplary centralized and decentralized technologies. The outcome is a qualitative evaluation of the supplement of each technology regarding its suitability of dealing with data streams.
Comparison of Daily GRACE Solutions to GPS Station Height Movements
Creators: name: Eicker, Annette
name: Kurtenbach, Enrico
name: Kusche, Jürgen
name: Shabanloui, Akbar
Publisher: name: Berlin : Springer
Year: 2014
Subjects: subject: GPS Station Height Movements
subject: Daily GRACE Solutions
subject: GPS Station Höhenänderung
subject: Tägliche GRACE-Lösungen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie, Kartographie
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::629,1 | Luft- und Raumfahrttechnik

description: In Kurtenbach (2011) and Kurtenbach et al. (2012) an approach has been introduced that allows to calculate daily gravity field solutions from GRACE data within the framework of a Kalman filter and smoother estimation. The method uti- lizes spatial and temporal correlations of the expected gravity field signal derived from geophysical models in addition to the daily observations, thus effectively con- straining the spatial and temporal evolution of the GRACE solution. Here, we offer an extended validation of these daily solutions by comparing the derived mass variations to vertical displacements at various permanent GPS stations. The comparison confirms the conclusion that the daily solutions contain significant high-frequent temporal gravity field information, especially in higher latitudes. The final version is available at https://link.springer.com/chapter/10.1007%2F978-3-642-32135-1_6.
No-go theorem in many body dissipative particle dynamics
Creators: name: Warren, Patrick B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Many body dissipative particle dynamics (MDPD) is a particle-based simulation method in which the interaction potential is a sum of self energies depending on locally-sampled density variables. This functional form gives rise to density-dependent pairwise forces, however not all such force laws are derivable from a potential and the integrability condition for this to be the case provides a strong constraint. A strategy to assess the implications of this constraint is illustrated here by the derivation of a useful no-go theorem for multicomponent MDPD.
description: 2 pages, RevTeX4-1
First-principles calculation of the Gilbert damping parameter via the linear response formalism with application to magnetic transition-metals and alloys
Creators: name: Mankovsky, S.
name: Koedderitzsch, D.
name: Woltersdorf, G.
name: Ebert, H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A method for the calculations of the Gilbert damping parameter $α$ is presented, which based on the linear response formalism, has been implemented within the fully relativistic Korringa-Kohn-Rostoker band structure method in combination with the coherent potential approximation alloy theory. To account for thermal displacements of atoms as a scattering mechanism, an alloy-analogy model is introduced. This allows the determination of $α$ for various types of materials, such as elemental magnetic systems and ordered magnetic compounds at finite temperature, as well as for disordered magnetic alloys at $T = 0$ K and above. The effects of spin-orbit coupling, chemical and temperature induced structural disorder are analyzed. Calculations have been performed for the 3$d$ transition-metals bcc Fe, hcp Co, and fcc Ni, their binary alloys bcc Fe$_{1-x}$Co$_{x}$, fcc Ni$_{1-x}$Fe$_x$, fcc Ni$_{1-x}$Co$_x$ and bcc Fe$_{1-x}$V$_{x}$, and for 5d impurities in transition-metal alloys. All results are in satisfying agreement with experiment.
ORGANIC IONO-OPTOELECTRONICS
Creators: name: Chen, Ke
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 401605
subject: Functional materials
classificationCode: 400999
subject: Electronics, sensors and digital hardware not elsewhere classified

description: Conjugated polymers are organic macromolecules that are characterized by a backbone chain of alternating double- and single-bonds. This alternating pattern results in delocalized π electronic systems, contributing to electronic conduction. In the solid state, conjugated polymers exhibit weak intermolecular interactions, rendering them soft nature in comparison to many of their inorganic counterparts, such as silicon, which consist of ‘hard' three-dimensional networks of rigid covalent bonds. In electrolyte, this weak intermolecular interaction creates free pathways for ion penetration and facilitates mixed ionic-electronic coupling. The ionic-electronic coupling of conjugated polymers impacts nearly all their properties, including light absorption, electronic conductivity, mechanical strength, etc.Organic iono-optoelectronics represent a class of devices where the ionic-electronic coupling in conjugated polymers can be synergistically or independently controlled by light irradiation and electrical voltage, enabling multimode electronic and optical functionalities. This dissertation explores two types of organic iono-optoelectronic devices: electrochromic devices and artificial eyes. In electrochromic devices, the ionic-electronic coupling is dynamically modulated by electrical voltage, which induces optical changes of conjugated polymers for applications in information visualization, thermal management, camouflage, etc. Conversely, artificial eyes utilize optical stimulation to tailor the electronic-ionic coupling, with electrical potential changes serving as readout. This paradigm shift opens the door to the development of light-driven biomedical electronics and intelligent visual systems. In the development of electrochromic devices, we introduce two strategies that expand the color palette and enhance the optical control of electrochromic devices, promoting their potential use in display and camouflage. In the development of artificial eye development, we introduce an electrochemical transistor device with integrated functions of light perception, memorization, and recognition by leveraging photon-modulated ion-electronic coupling. This device demonstrates great potential for intelligent visual systems and promises future optoelectronic neural interfaces.
Dirac structures on nilmanifolds and coexistence of fluxes
Creators: name: Chatzistavrakidis, Athanasios
name: Jonke, Larisa
name: Lechtenfeld, Olaf
Publisher: name: Amsterdam : Elsevier Science BV
Year: 2014
Subjects: subject: high energy physics
subject: theory
subject: mathematical physics
subject: poisson manifolds
subject: lie bialgebroids
subject: string theory
subject: compactifications
subject: tori
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We study some aspects of the generalized geometry of nilmanifolds and examine to which extent different types of fluxes can coexist on them. Nilmanifolds constitute a class of homogeneous spaces which are interesting in string compactifications with fluxes since they carry geometric flux by construction. They are generalized Calabi–Yau spaces and therefore simple examples of generalized geometry at work. We identify and classify Dirac structures on nilmanifolds, which are maximally isotropic subbundles closed under the Courant bracket. In the presence of non-vanishing fluxes, these structures are twisted and closed under appropriate extensions of the Courant bracket. Twisted Dirac structures on a nilmanifold may carry multiple coexistent fluxes of any type. We also show how dual Dirac structures combine to Courant algebroids and work out an explicit example where all types of generalized fluxes coexist. These results may be useful in the context of general flux compactifications in string theory.
title: Rotary Honing: a Variant of the Taylor Paint-Scraper Problem
Creators: name: Hills, Christopher
name: Moffatt, H
Publisher: name: Technological University of Dublin
Year: 2000

description: The three-dimensional Row in a corner of fixed angle α induced by the rotation in its plane of one of the boundaries is considered. A local similarity solution valid in a neighbourhood of the centre of rotation is obtained and the streamlines are shown to be closed curves. The effects of inertia are considered and are shown to be significant in a small neighbourhood of the plane of symmetry of the flow. A simple experiment confirms that the streamlines are indeed nearly closed; their projections on planes normal to the line of intersection of the boundaries are precisely the 'Taylor' streamlines of the well-known 'paint-scraper' problem. Three geometrical variants are considered: (i) when the centre of rotation of the lower plate is offset from the contact line; (ii) when both planes rotate with different angular velocities about a vertical axis and Coriolis effects are retained in the analysis; and (iii) when two vertical planes intersecting at an angle 2β are honed by a rotating conical boundary. The last is described by a similarity solution of the first kind (in the terminology of Barenblatt) which incorporates within its structure a similarity solution of the second kind involving corner eddies of a type familiar in two-dimensional corner flows.
title: Die Klosterkirche der Seligen Luitgard in Wittichen. Ein mittelalterlicher Bau im barocken Gewand
Creators: name: King, Stefan
Publisher: name: University Library Heidelberg
Year: 2015

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 44, Nr. 3 (2015), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Freizeitspaß und Wettkampffieber. Das Freibad Markwasen in Reutlingen
Creators: name: Kraume-Probst, Sabine
Publisher: name: University Library Heidelberg
Year: 2015

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 44, Nr. 3 (2015), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Viscous potential flow analysis of peripheral heavy ion collisions
Creators: name: Wang, D. J.
name: Néda, Z.
name: Csernai, L. P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The conditions for the development of a Kelvin-Helmholtz Instability (KHI) for the Quark-gluon Plasma (QGP) flow in a peripheral heavy-ion collision is investigated. The projectile and target side particles are separated by an energetically motivated hypothetical surface, characterized with a phenomenological surface tension. In such a view, a classical potential flow approximation is considered and the onset of the KHI is studied. The growth rate of the instability is computed as function of phenomenological parameters characteristic for the QGP fluid: viscosity, surface tension and flow layer thickness.
Primula hirsuta Gaudin
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: K. hirsuta (DC.) Gaudin Cat. 383. Hier sindzu streichen die Angaben «Vincenthütte» und «Punta della Valle» (beide = italienisches Gebiet) sowiedie Angabe «Almagellalp» (= Zwischbergental;vgl. BechererLit.1940c,S. 115) \ 3: Chermontane im Val de Bagnes (A. Meylan1893in herb. Conserv.Bot., Genf);RiffelbeiZer- matt (Pampanini Lit. 1903, S. 157); Gornergrat bei Zermatt (G. Laserre in herb. Conserv. Bot., Genf). - 3a:Östlichob Simplon-DorfzwischendemHohbielundderKessikumme(Cornaz1893), ferner beim Hohbiel selbst und gegen das Rothorn (Becherer); Alpien: von Corvetsch bis Alpien- rung und am Hang des Monte Camera (Becherer). - 4: Binntal (Wolf); Blindental (B. C.W.); Maienwang (Wolf, Henchoz). Forma subglabriflora Domin - 4:Furka (DominLit. 1907). Forma latifrons Domin - 4:Merezenbachtal(Lagger). Forma pallida Kneucker - 3a:Gmeinalp (Zwischbergental) gegen den Siebelenboden und das Galgi (Becherer). - 4: Eginental (Favrat).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Lateral deformation and defect resistance of compacted silica glass: Quantification of the scratching hardness of brittle glasses
Creators: name: Sawamura, Shigeki
name: Limbach, René
name: Behrens, Harald
name: Wondraczek, Lothar
Publisher: name: Amsterdam : Elsevier
Year: 2018
Subjects: subject: Glass
subject: Scratch hardness
subject: Scratch resistance
subject: Silica
subject: Deformation
subject: Elastic moduli
subject: Fused silica
subject: Hardness
subject: Deformation process
subject: Human interactions
subject: Lateral deformation
subject: Multimedia device
subject: Quantitative data
subject: Work of deformation
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Human interaction with multimedia devices occurs predominantly over inorganic glass surfaces. Scratch-induced damage is a primary limitation in the suitability of brittle glasses for this purpose. However, neither truly quantitative data nor a topo-chemical understanding of the underlying deformation process which would allow for the development of improved materials is presently available. Here, we present lateral nano-indentation experiments for determining the work of deformation which is involved in the process of glass scratching. Using a series of hot-compressed vitreous silica with mild degrees of structural densification, we derive relations between quantitative scratch hardness and the underlying glass structure. We show that Young's modulus provides a clear rational for the observed variations in scratching hardness. In the specific case of silica, the energy needed to generate a certain scratch volume corresponds to roughly one tenth of Young's modulus. This relationship formally indicates that only about one tenth of the bonds which are involved in the deformation process are broken in its course. However, comparison with a more complex glass material with a certain fraction of two dimensional structural units and a strong ability for topological adaption to local stress clearly indicates a deviation from this behavior. This opens a pathway to topo-chemical engineering of scratch-resistant glasses.
Debt Dilution, Debt Covenants, and Macroeconomic Fluctuations
Creators: name: Fang, Min
name: Zhou, Wentao
Publisher: name: Zenodo
Year: 2023
Subjects: Debt Covenants
Debt Dilution
Financial Frictions
Business Cycle

description: Debt covenants are pervasive in debt contracts. To prevent the dilution of existing debt, most creditors set covenants of a maximum debt-to-earnings ratio for borrowing firms. In this paper, we embed debt covenants into a workhorse real business cycle model with defaultable long-term debt to study its macroeconomic implications. In our model, creditors penalize firms when covenants are violated. We show such a mechanism that covenants significantly reduce debt dilution and default over the business cycles. Furthermore, reduced debt dilution due to covenants also mitigates the debt overhang problem and thus boosts capital accumulation. Compared to counterfactual economies without covenants, the baseline economy with covenants experiences endogenous stabilization of macroeconomic shocks and higher levels of capital, output, and consumption.
GW170608: Observation of a 19 Solar-mass Binary Black Hole Coalescence
Creators: name: Abbott, B.P.
name: Abbott, R.
name: Abbott, T.D.
name: Acernese, F.
name: Ackley, K.
name: Adams, C.
name: Adams, T.
name: Et Al.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2017
Subjects: subject: binaries: general
subject: gravitational waves
subject: stars: black holes
subject: Gravitationswelle
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: On 2017 June 8 at 02:01:16.49 UTC, a gravitational-wave (GW) signal from the merger of two stellar-mass blackholes was observed by the two Advanced Laser Interferometer Gravitational-Wave Observatory detectors with anetwork signal-to-noise ratio of 13. This system is the lightest black hole binary so far observed, with componentmasses of 12+7 -2M⊙7+2 -2 (90% credible intervals). These lie in the range of measured black hole masses inlow-mass X-ray binaries, thus allowing us to compare black holes detected through GWs with electromagneticobservations. The source's luminosity distance is 340+140 -140corresponding to redshift -0.07+0.030 03. We verify thatthe signal waveform is consistent with the predictions of general relativity.
Testing the validity of the single-spin approximation in inspiral-merger-ringdown waveforms
Creators: name: Pürrer, Michael
name: Hannam, Mark
name: Ajith, P.
name: Husa, Sascha
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gravitational-wave signals from black-hole binaries with non-precessing spins are described by four parameters -- each black hole's mass and spin. It has been shown that the dominant spin effects can be modeled by a \emph{single} spin parameter, leading to the development of several \emph{three-parameter} waveform models. Previous studies indicate that these models should be adequate for gravitational-wave detection. In this paper we focus on the systematic biases that would result from using them to estimate binary parameters, and consider a one-parameter family of configurations at one choice of mass ratio and effective single spin. We find that for low-mass binaries within that family of configurations, where the observable waveform is dominated by the inspiral, the systematic bias in all physical parameters is smaller than the parameter uncertainty due to degeneracies between the mass ratio and the spins, at least up to signal-to-noise ratios (SNRs) of 50. For higher-mass binaries, where the merger and ringdown make a greater contribution to the observed signal, the bias in the mass ratio is comparable to its uncertainty at SNRs of only $\sim$30, and the bias in the measurement of the total spin is \emph{larger} than the uncertainty defined by the 90% confidence region even at an SNR of only 10. Although this bias may be mitigated in future models by a better choice of single-effective-spin parameter, these results suggest that it may be possible to accurately measure \emph{both} black-hole spins in intermediate-mass binaries.
description: 14 pages, 14 figures
A Novel Application of System Survival Signature in Reliability Assessment of Offshore Structures
Creators: name: Regenhardt, Tobias-Emanuel
name: Azad, Md Samdani
name: Punurai, Wonsiri
name: Beer, Michael
Publisher: name: Cham : Springer
Year: 2018
Subjects: subject: survival signature
subject: offshore
subject: system reliability
subject: Systemzuverlässigkeit
subject: Überlebenssignatur
subject: Offshore
subject: Dewey Decimal Classification::600 | Technik

description: Offshore platforms are large structures consisting of a large number of components of various types. Thus a variety of methods are usually necessary to assess the structural reliability of these structures, ranging from Finite-Elements-methods to Monte-Carlo-Simulations. However, often reliability information is only available for the members and not for the overall, complex, system. The recently introduced survival signature provides a way to separate the structural analysis from the behaviour of the individual members. Thus it is then possible to use structural reliability methods to obtain information about how the failure of several constituent members of the offshore platform leads to overall system failure. This way it is possible to separate the structural from time-dependent information, allowing flexible and computationally efficient computation of reliability predictions. The final publication is available at Springer via https://doi.org/10.1007/978-3-030-00979-3_2
CANDELS Multiwavelength catalogs: Source Identification and Photometry in the CANDELS UKIDSS Ultra-Deep Survey Field
Creators: name: Galametz, Audrey
name: Grazian, Andrea
name: Fontana, Adriano
name: Ferguson, Henry C.
name: Ashby, M. L. N.
name: Barro, Guillermo
name: Castellano, Marco
name: Dahlen, Tomas
name: Donley, Jennifer L.
name: Faber, Sandy M.
name: Grogin, Norman
name: Guo, Yicheng
name: Huang, Kuang-Han
name: Kocevski, Dale D.
name: Koekemoer, Anton M.
name: Lee, Kyoung-Soo
name: McGrath, Elizabeth J.
name: Peth, Michael
name: Willner, S. P.
name: Almaini, Omar
name: Cooper, Michael
name: Cooray, Asantha Roshan
name: Conselice, Christopher J.
name: Dickinson, Mark
name: Dunlop, James S.
name: Fazio, G. G.
name: Foucaud, Sebastien
name: Gardner, Jonathan P.
name: Giavalisco, Mauro
name: Hathi, N. P.
name: Hartley, Will G.
name: Koo, David C.
name: Lai, Kamson
name: de Mello, Duilia F.
name: McLure, Ross J.
name: Lucas, Ray A.
name: Paris, Diego
name: Pentericci, Laura
name: Santini, Paola
name: Simpson, Chris
name: Sommariva, Veronica
name: Targett, Thomas
name: Weiner, Benjamin J.
name: Wuyts, Stijn
name: team, the CANDELS
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the multiwavelength - ultraviolet to mid-infrared - catalog of the UKIDSS Ultra-Deep Survey (UDS) field observed as part of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS). Based on publicly available data, the catalog includes: the CANDELS data from the Hubble Space Telescope (near-infrared WFC3 F125W and F160W data and visible ACS F606W and F814W data), u-band data from CFHT/Megacam, B, V, Rc, i' and z' band data from Subaru/Suprime-Cam, Y and Ks band data from VLT/HAWK-I, J, H and K bands data from UKIDSS (Data Release 8), and Spitzer/IRAC data (3.6, 4.5 from SEDS, 5.8 and 8.0um from SpUDS). The present catalog is F160W-selected and contains 35932 sources over an area of 201.7 square arcmin and includes radio and X-ray detected sources and spectroscopic redshifts available for 210 sources.
description: 22 pages, 20 figures, ApJ in press. The CANDELS UDS catalog (in ascii & fits format) and associated ReadMe file are made available on the CANDELS website (http://candels.ucolick.org/) as well as on the MAST CANDELS page (http://archive.stsci.edu/prepds/candels/)
Cuidados Paliativos. Qualidade de vida. Compreensão do tratamento. Guia de informações. Adesão ao cuidado
Creators: name: Alves de Oliveira, João Batista
Publisher: name: Zenodo
Year: 2023

description: As fontes de informações na atualidade são muitas, porém nem sempre cumprem a função a que se destinam, muitas vezes por uma abordagem em um contexto genérico e por vezes é extremamente necessário que o foco seja totalmente fechado para produzir o conhecimento adequado e, especialmente em situações de doença, trazer a tranquilidade necessária.
Essa é a finalidade desse informativo – servir como fonte de educação leiga, porém sem perder o embasamento técnico, cuja finalidade é promover, a cada vez mais, a inclusão precoce do Cuidado Paliativo nas várias áreas da medicina, tratando sintomas, atuando no sofrimento e melhorando a qualidade de vida.
Cada material preparado, ainda que traga informações já consagradas, tem sempre uma releitura particular que pode levar a olhar as situações por outros ângulos ou favorecer melhor divulgação e entendimento.
A finalidade desse informativo é educar para a saúde, para o cuidado do ser humano e para a qualidade de vida.
Esta apresentação é uma interpretação com o objetivo de melhorar a clareza e a compreensão de ideias expressas. Ela não substitui a orientação profissional, médica ou legal de cada paciente. As informações contidas neste texto não devem ser consideradas precisa e relevantes para suas necessidades individuais, sendo altamente recomendável buscar orientação de profissionais qualificados e experientes nas áreas pertinentes. Não nos responsabilizamos por quaisquer ações tomadas com base no conteúdo deste texto.
Studies of homogeneous precipitation in very dilute iron-coper alloys using kinetic Monte Carlo simulations and statistical theory of nucleation
Creators: name: Vaks, V. G.
name: Soisson, F.
name: Zhuravlev, I. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Kinetics of homogeneous nucleation and growth of copper precipitates under electron irradiation of Fe_{1-x}Cu_x alloys at concentrations x from 0.06 at.% to 0.4 at.% and temperatures T from 290 to 450C is studied using the kinetic Monte Carlo (KMC) simulations and the statistical theory of nucleation (STN). The conventional assumption about the similarity of mechanisms of precipitation under electron irradiation and during thermal aging is adopted. The earlier-developed ab initio model of interactions in Fe-Cu alloys is used for both the KMC simulations and the STN calculations. Values of the nucleation barrier F_c and the prefactor J_0 in the Zeldovich-Volmer relation for the nucleation rate J are calculated for a number of concentrations and temperatures. For the dilute alloys with x less then 0.2%, the STN and the KMC results for the nucleation barrier F_c do virtually coincide with each other, which seems to confirm a high reliability of the STN for this problem. The STN calculations are also used to estimate the temperature dependencies of concentrations which correspond to the homogeneous or the heterogeneous precipitation limit and both dependencies are found to be rather sharp.
description: 21 page, 8 postscript figures, LaTeX
Drivers of HI Turbulence in Dwarf Galaxies
Creators: name: Stilp, Adrienne M.
name: Dalcanton, Julianne J.
name: Skillman, Evan D.
name: Warren, Steven R.
name: Ott, Juergen
name: Koribalski, Baerbel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Neutral hydrogen (HI) velocity dispersions are believed to be set by turbulence in the interstellar medium (ISM). Although turbulence is widely believed to be driven by star formation (SF), recent studies have shown that this driving mechanism may not be dominant in regions of low SF rate surface density (SFRSD), such as found in dwarf galaxies or the outer regions of spirals. We have generated average HI line profiles in a number of nearby dwarfs and low-mass spirals by co-adding HI spectra in regions with either a common radius or SFRSD. We find that the spatially-resolved superprofiles are composed of a central narrow peak (5-15 km/s) with higher velocity wings to either side. With the assumption that the central peak reflects the turbulent velocity dispersion, we compare HI kinematics to local ISM properties, including surface mass densities and measures of SF. The HI velocity dispersion is correlated most strongly with surface mass density, which points at a gravitational origin for turbulence, but it is unclear which instabilities can operate efficiently in these systems. SF energy is produced at a level sufficient to drive HI turbulent motions where SFRSD > 10^-4 Msun yr^-1 kpc^-2. At low SF intensities, SF does not supply enough energy for turbulence, nor does it uniquely determine the velocity dispersion. Nevertheless, SF appears to provide a lower threshold for HI velocity dispersions. We find that coupling efficiency decreases with increasing SFRSD, consistent with a picture where SF couples to the ISM with constant efficiency, but that less of that energy is found in HI at higher SFRSD. We examine a number of potential drivers of HI turbulence, including SF, gravitational instabilities, the magnetorotational instability, and accretion, and find that no single mechanism can drive the observed levels of turbulence at low SFRSD. We discuss possible solutions to this conundrum.
description: Accepted for publication in ApJ
Simulation studies to evaluate the impact of receiver clock modelling in flight navigation
Creators: name: Jain, Ankit
name: Schön, Steffen
Publisher: name: Stuttgart : Frontiers of Geodetic Science
Year: 2019
Subjects: subject: navigation
subject: simulation
subject: geodesy
subject: GNSS receiver clock modelling
subject: Navigation
subject: Simulation
subject: Geodäsie
subject: GNSS-Empfängeruhrmodellierung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie, Kartographie
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: GNSS based positioning and navigation always require perfect synchronization between the receiver and satellites clock. Further, due to the limited frequency stability of the GNSS receiver’s internal oscillator, an additional receiver clock error has to be estimated along with the coordinates. Thus, the observation geometry is changed; it results in some disadvantages which are: at least four satellites are required for positioning or navigation, high correlations are generated among the estimated receiver clock, the up-component and tropospheric delay, and the up-component is estimated less precisely than the horizontal coordinates. Research has shown that these drawbacks can be avoided by replacing the receiver internal oscillator with a more stable external clock and modelling its operation in a physically meaningful way over intervals in which the oscillator noise is far less than the observation noise. This method is known as receiver clock modelling (RCM). In this contribution, we will present a simulation study which is done to evaluate the gain in performance by RCM in code-based GNSS flight navigation where the height component is of relevance. Different flight test trajectories are simulated with code observation of a multi-GNSS system. Observations for different test trajectories are evaluated with and without RCM using different types of external clocks. The gain in precision of the coordinates for different trajectories w.r.t different clocks will be presented.
title: Eddies Induced in Cylindrical Containers by a Rotating End Wall
Creators: name: Hill, Christopher
Publisher: name: Technological University of Dublin
Year: 2001

description: The flow generated in a viscous liquid contained in a cylindrical geometry by a rotating end wall is considered. Recent numerical and experimental work has established several distinct phases of the motion when fluid inertia plays a significant role. The current paper, however, establishes the nature of the flow in the thus far neglected low Reynolds number regime. Explicitly, by employing biorthogonality relations appropriate to the current geometry, it is shown that a sequence of exponentially decaying eddies extends outward from the rotating end wall. The cellular structure is a manifestation of the dominance of complex eigensolutions to the homogeneous problem and arises as the result of nonlinear forcing associated with an inertial correction to the Stokes flow.