cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Full-scale experiences with mechanical-biological pretreatment of municipal solid waste and landfilling
Creators: name: Von Felde, Dierk
name: Doedens, Heiko
Publisher: name: London : SAGE Publications Ltd.
Year: 1999
Subjects: subject: Biological
subject: Landfill gas
subject: Landfilling
subject: Leachate
subject: Mechanical
subject: Municipal solid waste
subject: Pretreatment
subject: Waste analysis
subject: carbon
subject: fuel
subject: iron
subject: bioprocess
subject: concentration (parameters)
subject: conference paper
subject: density
subject: Germany
subject: hydraulic permeability
subject: landfill
subject: leaching
subject: mechanics
subject: priority journal
subject: solid waste management
subject: total organic carbon
subject: Biodegradation
subject: Carbon
subject: Gas emissions
subject: Nitrogen
subject: Refuse derived fuels
subject: Solid wastes
subject: Mechanical-biological pretreatment (MBP)
subject: Residual municipal solid wastes (RMSW)
subject: Total organic carbon (TOC)
subject: Land fill
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: In Lower Saxony three full-scale plants for the mechanical-biological pretreatment (MBP) of residual municipal solid waste (RMSW) prior to landfilling are now in operation. The three plants support a wide range of mechanical and encapsulated biological process techniques. In addition to biological degradation, pretreatment allows mechanical separation of iron fractions and refuse derived fuel (RDF). This causes a strong reduction in the need for landfill sites and hence lowers landfill emissions. To describe the efficiency of biological stabilization of RMSW several chemical-physical or biological methods for analysing solid matter or eluate can be used. On the one hand, chemical-physical methods determine a large portion of the total organic carbon (TOC) of pretreated wastes, but often do not allow a differentiation between mobile (with respect to degradable) and immobile (with respect to non-degradable) portions. On the other hand biological parameters explain only a small portion of the TOC, but are well suited devices for qualitative evaluation of landfill reactions and emissions. First results from separate landfill compartments show lower hydraulic permeability, higher landfilling density, lower organic and nitrogen concentrations in leachate of Landfilled MBP wastes compared to untreated wastes. An acid phase with high organic leachate concentrations does not occur. This will create new requirements for landfilling techniques.
Chemical preparation, crystal structure and vibrational study of a new dihydrogenotriphosphate trihydrate of 4-aminobenzoic acid fertilizer type NP
Creators: name: Atibi, A.
name: Kababi, K. El
name: Belhabra, M.
name: Zerraf, S.
name: Tridane, M.
name: Belaaouad, S.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Inorganic Chemistry
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Crystals of dihydrogenotriphosphate trihydrate of 4-aminobenzoic acid, (NH3C6H4COOH)3H2P3O10·3H2O, were prepared and grown at room temperature. (NH3C6H4COOH)3H2P3O10·3H2O crystallizes in the triclinic system with centric space group P-1. Its unit-cell dimensions are a = 9.844(1) Å, b = 13.086(4) Å, c = 13.320(2) Å, α = 107.12(2)°, β = 106.08(1)°, γ = 97.87(2)°, Z = 2 and V = 1530 Å3. The structure was determined by X-ray diffraction data collection on a single-crystal and gives a clear description of hydrogen bonds interconnecting the triphosphoric groups so as to build [(H2P3O10)(H2O)]3− infinite inorganic chains that extend along the [110] direction. Organic cations, spreading along the [101] direction establish hydrogen bonding connections between the inorganic chains. The IR spectrum for the crystal confirms that most of the vibrational modes are comparable to similar triphosphates and to the calculated frequencies. The thermal properties reveal that the compound is stable until 90 °C.
Simulation of a flush endplate connection at elevated temperatures including fracture simulation
Creators: name: Schaumann, Peter
name: Kirsch, Thomas
Publisher: name: Bingley : Emerald Group Publishing Ltd.
Year: 2013
Subjects: subject: 3-d numerical models
subject: Elevated temperature
subject: End plate connections
subject: Flush endplate connection
subject: Fracture simulations
subject: Numerical approaches
subject: Structural behaviour
subject: Temperature-dependent material
subject: Numerical models
subject: Fracture
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik

description: Actual developments in numerical simulations of the structural behaviour in fire situation are focussed on taking into consideration the interaction of all structural members in a global numerical approach. Therefore it is necessary to model the load bearing behaviour of connections in detail. In this paper a detailed 3D numerical model of a bolted steel endplate connection taking into account nonlinearities, e.g. temperature dependent material, is presented. The simulation is validated by experimental tests conducted at the University of Sheffield in 2008. During some of the experimental tests, large deformations and fractures occurred. These phenomena are simulated with the numerical model as well.
Will Central Counterparties become the New Rating Agencies?
Creators: name: Kenyon, Chris
name: Green, Andrew
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Finance (q-fin.GN)
subject: FOS: Economics and business
subject: 91B25, 62P05, 91G20

description: Central Counterparties (CCPs) are widely promoted as a requirement for safe banking with little dissent except on technical grounds (such as proliferation of CCPs). Whilst CCPs can have major operational positives, we argue that CCPs have many of the business characteristics of Rating Agencies, and face similar business pressures. Thus we see a risk that prices from CCPs may develop the characteristics attributed to ratings from Rating Agency pre-crisis. Business over-reliance on ratings of questionable accuracy is seen as a cause of the financial crisis. We see the potential for same situation to be repeated with prices from CCPs. Thus the regulatory emphasis on CCPs, rather than on collateralization, may create the preconditions for an avoidable repeat of the financial crisis.
description: 6 pages
Downlink Frequency Reuse and Hopping for OFDMA femtocells
Creators: name: Zhao, Zhao
name: Kaiser, Thomas
name: Wilzeck, Andreas
Publisher: name: Berlin : De Gruyter
Year: 2010
Subjects: subject: Femtocell downlink
subject: Frequency hopping
subject: Frequency reuse
subject: OFDMA
subject: Downlink frequency
subject: Femtocell
subject: Fractional Frequency Reuse
subject: Frequency patterns
subject: Frequency re-use
subject: Intercell interference
subject: Interference management
subject: Low-complexity
subject: Simulation result
subject: Frequency division multiple access
subject: Mobile telecommunication systems
subject: Radio interference
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: To prevent the Femto-to-Macro and Femto-to-Femto inter-cell interference, it is essential for the Femto Base Stations to perform interference management in its downlink. This paper exploits the distinct characteristics of OFDMA Femtocells and reveals the simple but effective mechanics for Femto BSs to mitigate the inter-cell interference when Macro BSs are performing fractional frequency reuse. The idea consists of frequency pattern counter-reusing and band-wide frequency hopping. Base on this idea, we then proposed a heuristic Frequency Reuse and Hopping scheme and the later simulation results proved that it can satisfactorily improve the system performance. By following the routines of low-cost low-complexity in design, the proposed scheme is grounded on realistic assumptions and easy to implement.
Solvent-dependent structures of lanthanide–TCNQ coordination networks and their magnetic properties
Creators: name: Kachi-Terajima, Chihiro
name: Kimura, Norihisa
name: Tomori, Yuka
name: Akahoshi, Daisuke
name: Saito, Toshiaki
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Developmental Biology
subject: Cancer

description: Lanthanide complexes were prepared with 2,6-diacetylpyridinebis(benzoylhydrazone) (DAPBH2) and 7,7,8,8-tetracyano-p-quinodimethanide (TCNQ•−). The complexes adopted one of two structure types depending on the reaction solvent. The complexes were categorized as Type I (i.e. bis{[2,6-diacetylpyridinebis(benzoylhydrazone)] methanollanthanide(III)}bis(µ2- 7,7,8,8-tetracyanoquinodimethanide(1−))bis(7,7,8,8-tetracyanoquinodimethanide(1−))bis(7,7,8,8-tetracyanoquinodimethanide(1−)) methanol disolvate, [Ln2(DAPBH2)2 (µ2-TCNQ•−)2(TCNQ•−)2(MeOH)2](TCNQ•−)2·2MeOH (Ln = Gd, Tb, or Dy) or Type-II (i.e. [Ln2(DAPBH2)2(µ2-TCNQ•−)2(TCNQ•−)2(EtOH)2] (TCNQ•−)2·solvent (Ln = Tb and Dy, solvent =4EtOH for the Tb and 2EtOH·2CH2Cl2 for the Dy complexes). These two complexes exhibit dramatically different molecular structures and packings. In all complexes, the strong intra- and intermolecular stacking interactions of the TCNQ•− radicals lead to the formation of 1D TCNQ chains. Magnetic susceptibility measurements for Type I and Type II complexes reveal that they exhibit paramagnetic behavior and that their magnetic properties originate from the lanthanide ions alone, owing to the diamagnetic nature of the TCNQ•− stacks.
The initial value problem for ordinary differential equations with infinitely many derivatives
Creators: name: Gorka, Przemyslaw
name: Prado, Humberto
name: Reyes, Enrique G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study existence, uniqueness and regularity of solutions for ordinary differential equations with infinitely many derivatives such as (linearized versions of) nonlocal field equations of motion appearing in particle physics, nonlocal cosmology and string theory. We develop an appropriate Lorentzian functional calculus via Laplace transform which allows us to interpret rigorously an operator of the form $f(\partial_t)$ on the half line, in which $f$ is an analytic function. We find the most general solution to the equation $f(\partial_t) ϕ= J(t)$ (t greater or equal to 0) in the space of exponentially bounded functions, and we also analyze in full detail the delicate issue of the initial value problem. In particular, we state conditions under which the solution $ϕ$ admits a finite number of derivatives, and we prove rigorously that if an a priori data directly connected with our Lorentzian calculus is specified, then the initial value problem is well-posed and it requires only a finite number of initial conditions.
description: PACS numbers: 02.30.Uu, 04.50.Kd, 11.10.Lm, 98.80.Jk
High Kinetic Energy Ion Mobility Spectrometry (HiKE-IMS) at 40 mbar
Creators: name: Schlottmann, Florian
name: Kirk, Ansgar T.
name: Allers, Maria
name: Bohnhorst, Alexander
name: Zimmermann, Stefan
Publisher: name: Washington, DC : ACS Publications
Year: 2020
Subjects: subject: Ion Mobility Spectrometers (HiKE-IMS)
subject: printed circuit boards (PCB)
subject: limit of detection (LoD)
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: High Kinetic Energy Ion Mobility Spectrometers (HiKE-IMS) are usually operated at an absolute pressure of 20 mbar reaching high reduced electric field strengths of up to 125 Td for controlled reaction kinetics. This significantly increases the linear range and limits chemical cross sensitivities. Furthermore, HiKE-IMS enables the ionization of compounds normally not detectable in ambient pressure IMS, such as benzene, due to new reaction pathways and the inhibition of clustering reactions. In addition, HiKE-IMS allows the observation of additional orthogonal parameters related to an increased ion temperature such as fragmentation and field-dependent ion mobility, which may help to separate compounds that have similar ion mobility under low field conditions. Aiming for a hand-held HiKE-IMS to carry its benefits into field applications, reducing size and power consumption of the vacuum system is necessary. In this work, we present a novel HiKE-IMS design entirely manufactured from standard printed circuit boards (PCB) and experimentally investigate the analytical performance in dependence of the operating pressure between 20 mbar and 40 mbar. Hereby, the limit of detection (LoD) for benzene in purified, dry air (1.4 ppmV water) improved from 7 ppbV at 20 mbar down to 1.8 ppbV at 40 mbar. Furthermore, adding 0.9 ppmV toluene the signal of the benzene B+ peak decreases by only 2 % at 40 mbar. Even in the presence of high relative humidity in the sample gas above 90 % or toluene concentrations of up to 20 ppmV, the LoD for benzene just increases to 9 ppbV at 40 mbar.
BioExcel-2 Deliverable D5.1 - Branding and Quality Mark Design Inception Report
Creators: name: Apostolov, Rossen
name: Robertshaw, Steve
Publisher: name: Zenodo
Year: 2020
Subjects: branding
quality mark
software quality assessment

description: Quality of operations, products, services etc. are fundamental for the success of organizations. It is thus important to establish a set of evaluation criteria, a quality mark (QM), to monitor the outcomes and steer organization’s activities. By being awarded with one or more QMs for its products and services, a Centre of Excellence (CoE) such as BioExcel can instil confidence and trust in its user community and enable it to develop a good reputation more widely. Quality should be easily associated with the visual brand of the CoE and boost its profile. This document describes how BioExcel CoE plans to create meaningful QMs that offer a positive contribution to the overall branding exercise and underpin the existing visual brand with deeper meaning. The QM development will be done by two approaches. The top-down approach (section 2) starts with the overall mission and vision of the centre and analyses how they underpin quality standards for specific products, services and activities. The latter three categories are analysed in the bottom-up approach (section 3) for development of criteria and guidelines for each of the main outcomes of our work - software applications as a product, software as a service, support and training activities. Development of quality standards is a major undertaking. It is not a primary activity of BioExcel and therefore we aimed to adopt or adapt existing standards to suit our particular needs. In the development process we have, or plan to, actively engage with third party organizations. In terms of achieving sustainable operations, BioExcel is in the process of establishment and bootstrapping of a legal entity. We here introduce the preliminary stages of work that will clearly be of most benefit to the sustainable entity, but which also meet the project requirements through addressing the sustainability objective.
Bemerkungen zum Rauschen von Vierpolen
Creators: name: Lücherer, Karl-Heinz
Publisher: name: Berlin : De Gruyter
Year: 1987
Subjects: subject: electric networks - transmission line theory
subject: friis formula
subject: noise temperature
subject: noisy fourpoles
subject: signal processing
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Es wird auf ein Problem bei der Anwendung der Friis’schen Formel für die Kettenschaltung rauschender Vierpole sowie auf den Einfluß des Last-Rauschens bei der Bestimmung der Rauschtemperatur eines Vierpols hingewiesen. © 1987, Walter de Gruyter. Alle Rechte vorbehalten.
Crystalline bis(η5-cyclopentadienyl)bis(benzoato/carboxylato)titanium(IV) precursor-directed route to functional titanium dioxide nanomaterials
Creators: name: S. Basu Baul, Tushar
name: Manne, Rajesh
name: R. T. Tiekink, Edward
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology

description: Five titanocene(IV) carboxylates of the general formula Cp2Ti(O2CR)2 viz., [Ti(η5-C5H5)2(O2CC6H5-4-CH3)2] (1), [Ti(η5-C5H5)2(O2CC4H3-2-O)2] (2), [Ti(η5-C5H5)2(O2CC4H3-3-O)2] (3), [Ti(η5-C5H5)2(O2CC(CH3)3)2] (4), and [Ti(η5-C5H5)2(O2C(CH)C(CH3)3)2] (5) have been synthesized. All the titanocene(IV) carboxylates have been characterized by IR, 1H, and 13C NMR spectroscopic techniques, and the crystal and molecular structures of 1–5 have been determined by single crystal X-ray crystallography. The structures present similar features with monodentate carboxylate ligands and tetrahedral Ti centers, assuming that each cyclopentadienyl (Cp) ring occupies one position only. The differences in the structures relate primarily to the relative orientations of the carboxylate ligands. In the molecular packing, non-conventional Cp-C–H···O(carbonyl) hydrogen bonds are observed in each case and lead to supramolecular chains in each of 1, 4, and 5. In 2, the 2-furyl-O atoms also participate in C–H···O interactions leading to a two-dimensional array. Finally, in 3, a two-dimensional array arises as a result of Cp-C–H···O(carbonyl) and 3-furyl-C–H···O(carbonyl) interactions. As representative example, 3 was used as starting material for the synthesis of TiO2 nanoparticles (NPs). An effective and simple wet-chemical method involving calcination and ultrasonication is suggested for obtaining pure anatase TiO2 NPs, which were confirmed from the powder XRD and imaging techniques such as SEM, TEM, and EDS.
Berechnung der seitlichen Ankopplung eines Rechteckhohlleiters an einen Rundhohlleiter
Creators: name: Marquard, Jürgen
name: Wendel, Ralf
name: Grimm, Mathias
Publisher: name: Berlin : De Gruyter
Year: 1994
Subjects: subject: Cavity resonators
subject: Circular waveguides
subject: Computational methods
subject: Electromagnetic fields
subject: Electromagnetic wave scattering
subject: Mathematical models
subject: Numerical methods
subject: Parameter estimation
subject: Rectangular waveguides
subject: Vectors
subject: T-junctions
subject: Vector potentials
subject: Waveguide junctions
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Es wird ein Berechnungsverfahren zur Bestimmung der Streuparameter der seitlichen Ankopplung eines Rechteckhohlleiters an einen Rundhohlleiter vorgestellt. Die Anordnung wird in einen Resonator- und drei Hohlleiterbereiche unterteilt. Mit der Methode nach Kühn [1] lassen sich geeignete Ansätze für die Vektorpotentiale finden. Aus den Randbedingungen für das elektromagnetische Feld ergibt sich mit Hilfe der Orthogonalreihenentwicklung ein unendliches System linearer Gleichungen für die Bestimmung der Streuparameter, das abgebrochen und mit numerischen Verfahren gelöst wird. An zwei Beispielen wird die Richtigkeit des Rechenverfahrens durch den Vergleich der berechneten mit gemessenen Streuparametern belegt. © 1994, Walter de Gruyter. Alle Rechte vorbehalten.
Understanding Simulations of Thin Accretion Disks by Energy Equation
Creators: name: Lin, Da-Bin
name: Gu, Wei-Min
name: Liu, Tong
name: Sun, Mou-Yuan
name: Lu, Ju-Fu
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the fluctuations of standard thin accretion disks by linear analysis of the time-dependent energy equation together with the vertical hydrostatic equilibrium and the equation of state. We show that some of the simulation results in Hirose et al. (2009b), such as the time delay, the relationship of power spectra, and the correlation between magnetic energy and radiation energy, can be well understood by our analytic results.
description: 13 pages, 3 figure, accepted for publication in ApJ
ACCESS - V. Dissecting ram-pressure stripping through integral-field spectroscopy and multi-band imaging
Creators: name: Merluzzi, P.
name: Busarello, G.
name: Dopita, M. A.
name: Haines, C. P.
name: Steinhauser, D.
name: Mercurio, A.
name: Rifatto, A.
name: Smith, R. J.
name: Schindler, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the case of a bright (L>L*) barred spiral galaxy from the rich cluster A3558 in the Shapley supercluster core (z=0.05) undergoing ram-pressure stripping. Integral-field spectroscopy, complemented by multi-band imaging, allows us to reveal the impact of ram pressure on the interstellar medium. We study in detail the kinematics and the physical conditions of the ionized gas and the properties of the stellar populations. We observe one-sided extraplanar ionized gas along the full extent of the galaxy disc. Narrow-band Halpha imaging resolves this outflow into a complex of knots and filaments. The gas velocity field is complex with the extraplanar gas showing signature of rotation. In all parts of the galaxy, we find a significant contribution from shock excitation, as well as emission powered by star formation. Shock-ionized gas is associated with the turbulent gas outflow and highly attenuated by dust. All these findings cover the whole phenomenology of early-stage ram-pressure stripping. Intense, highly obscured star formation is taking place in the nucleus, probably related to the bar, and in a region 12 kpc South-West from the centre. In the SW region we identify a starburst characterized by a 5x increase in the star-formation rate over the last ~100 Myr, possibly related to the compression of the interstellar gas by the ram pressure. The scenario suggested by the observations is supported and refined by ad hoc N-body/hydrodynamical simulations which identify a rather narrow temporal range for the onset of ram-pressure stripping around t~60 Myr ago, and an angle between the galaxy rotation axis and the intra-cluster medium wind of ~45 deg. Taking into account that the galaxy is found ~1 Mpc from the cluster centre in a relatively low-density region, this study shows that ram-pressure stripping still acts efficiently on massive galaxies well outside the cluster cores.
description: 46 pages, 21 figures, accepted for publication; MNRAS 2012
Mechanochemical syntheses, crystal structures, and photo-luminescent properties of a new hydrazone and its nickel and cadmium complexes
Creators: name: Sathiyakumar, Subramani
name: Selvam, Pitchai
name: Hakkim, Faruck Lukmanul
name: Srinivasan, Krishnan
name: Harrison, William T. A.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Plant Biology

description: A new hydrazone, ethyl Z-2-(pyridine-2yl-methylene)hydrazinecarboxylate (C9H11N3O2; Hpyec) and its metal complexes bis(ethyl Z-2-(pyridine-2yl-methylene)hydrazinecarboxylate)nickel(II) monohydrate, [Ni(pyec)2]·H2O (1) and bis(acetato)(ethyl Z-2-(pyridine-2yl-methylene)hydrazinecarboxylate)cadmium(II), [Cd(Hpyec)(CH3COO)2] (2), have been prepared by mechanochemical syntheses and characterized by elemental analysis, UV–vis, IR and NMR spectroscopies, TG-DTA, and solid state emission techniques. The X-ray single crystal structures of both complexes were determined. In 1, the Ni2+ ion is coordinated by two N,N,O-tridentate anionic ligands to generate a distorted cis-NiO2N4 octahedron. In 2, the cadmium ion is seven-coordinate by one neutral N,N,O-tridentate ligand and two chelating acetate ions to generate a very-distorted CdN2O5 pentagonal bipyramid with the Hpyec atoms occupying both axial and one equatorial site. Crystal data: 1, C18H22N6NiO5, M r = 461.12, monoclinic, P21/c, a = 10.8759(3) Å, b = 11.7055(4) Å, c = 16.8424(5) Å, β = 108.583(1)°, V = 2032.38(11) Å3, Z = 4, R(F) = 0.023, wR(F 2) = 0.065; 2, C13H17CdN3O6, M r = 423.69, monoclinic, Cc, a = 13.0215(10) Å, b = 15.8104(11) Å, c = 7.99(6) Å, β = 96.692(2)°, V = 1621.7(2) Å3, Z = 4, R(F) = 0.017, wR(F 2) = 0.038.
Quantum Phase Transition from a Spin-liquid State to a Spin-glass State in the Quasi-1D Spin-1 System Sr1-xCaxNi2V2O8
Creators: name: Bera, A. K.
name: Yusuf, S. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report a quantum phase transition from a spin-liquid state to a spin-glass state in the quasi-one dimensional (1D) spin-1 system Sr1-xCaxNi2V2O8, induced by a small amount of Ca-substitution at Sr site. The ground state of the parent compound (x = 0) is found to be a spin-liquid type with a finite energy gap of 26.6 K between singlet ground state and triplet excited state. Both dc-magnetization and ac-susceptibility studies on the highest Ca-substituted compound (x = 0.05) indicate a spin-glass type magnetic ground state. With increasing Ca-concentration, the spin-glass ordering temperature increases from 4.5 K (for the x = 0.015 compound) to 6.25 K (for the x = 0.05 compound). The observed results are discussed in the light of the earlier experimental reports and the theoretical predictions for a quasi-1D spin-1 system.
description: 26 pages, 8 figures, 3 tables
Influence of the channel design on the heat and mass exchange of induction channel furnace
Creators: name: Baake, E.
name: Jakovics, A.
name: Pavlovs, S.
name: Kirpo, M.
Publisher: name: Bingley : Emerald Group Publishing Ltd.
Year: 2011
Subjects: subject: Experiment
subject: Furnace
subject: Modelling
subject: Numerical analysis
subject: Simulation
subject: Channel design
subject: Channel geometry
subject: Design/methodology/approach
subject: Electromagnetic models
subject: Heat and mass transfer
subject: Large Eddy simulation methods
subject: Low frequency oscillations
subject: Low temperatures
subject: Mass exchange
subject: Metallurgical industry
subject: Numerical modelling
subject: Simulation model
subject: Three-dimensional (3D)
subject: Wood's metal
subject: Industry
subject: Mass transfer
subject: Metallurgy
subject: Temperature measurement
subject: Three dimensional
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: Purpose - The purpose of this paper is to present in-depth numerical modelling of heat and mass exchange in industrial induction channel furnace (ICF). Design/methodology/approach - The turbulent heat and mass exchange in the melt is calculated using a three-dimensional (3D) electromagnetic model and a 3D transient large eddy simulation method. The simulation model has been verified by flow velocity and temperature measurements, which were carried out using an industrial sized channel inductor operating with Wood's metal as a low temperature model melt. Findings - The ICF is well-established for melting, holding and casting in the metallurgical industry. But there are still open questions regarding the heat and mass exchange in the inductor channel itself and between the channel and the melt bath. Different new designed channel geometries have been investigated numerically in order to find an optimized shape of the channel, which leads to an improved heat and mass transfer. Originality/value - Long-term computations for the industrial ICF have been performed. Low frequency oscillations of the temperature maximum and its position in the ICF channel are considered. © 2011 Emerald Group Publishing Limited. All rights reserved.
Daniel Cordier, Jean Moulin, l'Inconnu du Panthéon. T. 1: Une ambition pour la République, juin 1899–juin 1936, T. 2: Le Choix d'un destin, juin 1936–novembre 1940, 1989
Creators: name: Umbreit, Hans
Publisher: name: Francia
Year: 2018

description: -
description: Francia, Bd. 19, Nr. 3 (1992)
Diffusion quantum Monte Carlo calculation of the quasiparticle effective mass of the two-dimensional homogeneous electron gas
Creators: name: Drummond, N. D.
name: Needs, R. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The quasiparticle effective mass is a key quantity in the physics of electron gases, describing the renormalization of the electron mass due to electron-electron interactions. Two-dimensional electron gases are of fundamental importance in semiconductor physics, and there have been numerous experimental and theoretical attempts to determine the quasiparticle effective mass in these systems. In this work we report quantum Monte Carlo results for the quasiparticle effective mass of a two-dimensional homogeneous electron gas. Our calculations differ from previous quantum Monte Carlo work in that much smaller statistical error bars have been achieved, allowing for an improved treatment of finite-size effects. In some cases we have also been able to use larger system sizes than previous calculations.
A 6kV Arbitrary Waveform Generator for the Tevatron Lens
Creators: name: Pfeffer, H.
name: Saewert, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: This paper reports on a 6 kV modulator built and installed at Fermilab to drive the electron gun anode for the Tevatron Electron Lens (TEL). The TEL was built with the intention of shifting the individual (anti)proton bunch tunes to even out the tune spread among all 36 bunches with the desire of improving Tevatron integrated luminosity. This modulator is essentially a 6 kV arbitrary waveform generator that enables the TEL to define the electron beam intensity on a bunch-by-bunch basis. A voltage waveform is constructed having a 7 μs duration that corresponds to the tune shift requirements of a 12-bunch (anti)proton beam pulse train. This waveform is played out for any one or all three bunch trains in the Tevatron. The programmed waveform voltages transition to different levels at time intervals corresponding to the 395 ns bunch spacing. Thus, complex voltage waveforms can be played out at a sustained rate of 143 kHz over the full 6 kV output range. This paper describes the novel design of the inductive adder topology employing five transformers. It describes the design aspects that minimize switching losses for this multi-kilovolt, high repetition rate and high duty factor application.
description: 10 pp
Neubeginn bei Eisen und Stahl im Ruhrgebiet. Die Beziehungen zwischen Arbeitgebern und Arbeitnehmern in der nordrhein-westfälischen Eisen- und Stahlindustrie 1945–1948, bearbeitet von Gabriele Müller-List, 1990
Creators: name: Ludmann-Obier, Marie-France
Publisher: name: Francia
Year: 2018

description: -
description: Francia, Bd. 19, Nr. 3 (1992)
Numerical simulation of electromagnetic stirring in continuous casting of wires
Creators: name: Turewicz, P.
name: Baake, E.
name: Umbrashko, A.
Publisher: name: Bingley : Emerald Group Publishing Ltd.
Year: 2011
Subjects: subject: Continuous wire casting
subject: Electromagnetic stirring
subject: Electromagnetism
subject: Modelling
subject: Wires
subject: Continuous casting process
subject: Design/methodology/approach
subject: Electromagnetic forces
subject: Grain refinement process
subject: High flow velocity
subject: Material property
subject: Melt solidification
subject: Metal wires
subject: Numerical models
subject: Periodical characters
subject: Rotational symmetries
subject: Solidification fronts
subject: Solidification process
subject: Source terms
subject: Thermal modeling
subject: Transient simulation
subject: Continuous casting
subject: Electromagnetic fields
subject: Grain refinement
subject: Grain size and shape
subject: Iron
subject: Numerical analysis
subject: Solidification
subject: Wire
subject: Flow simulation
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: Purpose - The purpose of this paper is to describe how electromagnetic stirring during continuous casting of ferrous and non-ferrous metals is applied in order to increase the homogeneity and the material properties by improving the grain refinement in the solidification process. The fluid flow and thermal modeling was performed for studying the metal wire pulling process, where melt is being stirred at the solidification front (SF) by electromagnetic forces. Transient simulation has been carried out in order to investigate the periodical character of the process. Design/methodology/approach - The numerical analysis was performed in 2D utilizing the rotational symmetry of the problem. First the electromagnetic fields were estimated using FEM and were subsequently exported as source terms in a coupled thermal and flow simulation with FVM. Findings - The presented numerical model estimated the most suitable position between the stirring coil and the SF to achieve high flow velocities which improve the grain refinement process. Originality/value - This work enables estimation of the melt solidification in an electromagnetic stirred continuous casting process with oscillating pull velocities. © 2011 Emerald Group Publishing Limited. All rights reserved.
Haloalkane adsorption into 1-D ensembles’ channels: Zn(II) coordination polymers
Creators: name: Lee, Haeri
name: Lee, Daseul
name: Jung, Ok-Sang
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology

description: Self-assembly of ZnX2 (X– = Cl–, Br–, and I–) with 2,7-bis(isonicotinoyloxy)naphthalene (L) in a mixture of ethanol and dichloromethane yields 1-D zigzag chains of [ZnX2L·2CH2Cl2]n composition. The 1-D chains form an ensemble constituting hydrophobic suprachannels of 4.0–4.4 × 4.4–5.0 Å2 with repeat units of ZnL for [ZnCl2L] and [ZnBr2L], and those of 5.2 × 12.0 Å2 with repeat units of Zn2L2 for [ZnI2L] in the appropriate arrays via C–H···π and π···π interactions. The most interesting feature is that alcohol molecules are not incorporated into the haloalkane-philic channels. That is, the channels discriminate haloalkanes from alcohols. Furthermore, the exchange of solvate molecules in a crystalline state indicates that the unique channels show different absorptions of haloalkanes such as CH2Cl2, CH2Br2, CH2I2, CHCl3, 1,2-dichloroethane, and 1,2-dibromoethane.
Orbital Evolution of Compact White Dwarf Binaries
Creators: name: Kaplan, David L.
name: Bildsten, Lars
name: Steinfadt, Justin D. R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The new-found prevalence of extremely low mass (ELM, Mhe<0.2 Msun) helium white dwarfs (WDs) in tight binaries with more massive WDs has raised our interest in understanding the nature of their mass transfer. Possessing small (Menv~1e-3 Msun) but thick hydrogen envelopes, these objects have larger radii than cold WDs and so initiate mass transfer of H-rich material at orbital periods of 6-10 minutes. Building on the original work of D'Antona et al., we confirm the 1e6 yr period of continued inspiral with mass transfer of H-rich matter and highlight that the inspiraling direct-impact double WD binary HM Cancri likely has an ELM WD donor. The ELM WDs have less of a radius expansion under mass loss, thus enabling a larger range of donor masses that can stably transfer matter and become a He mass transferring AM CVn binary. Even once in the long-lived AM CVn mass transferring stage, these He WDs have larger radii due to their higher entropy from the prolonged H burning stage.
description: 9 pages, 8 figures. Accepted for publication in the Astrophysical Journal
Synonymous plural morphemes and their use in Welsh presented at AIMM5
Creators: name: Majka, Nicole
Publisher: name: Zenodo
Year: 2021
Subjects: Welsh
Cymraeg
lluosog
plural
plural morphemes
morphology
linguistics
plural forms
synonymous plural forms
AIMM5
poster
conference poster
multiple plural forms

description: This poster is a summary of the findings in my master's thesis. It tackles the question of why certain nouns in Welsh can form more than one acceptable plural form without there being any distinctions in meaning or register. It was presented at the AIMM5.
Routing in dezentral gesteuerten, modularen Fördersystemen
Creators: name: Sohrt, Simon
Publisher: name: Garbsen : TEWISS Verlag
Year: 2021
Subjects: subject: modular conveyor
subject: multi-agent system
subject: decentralized control
subject: conflict-free
subject: bi-directional routing
subject: Fördersysteme
subject: Multi-Agenten Systeme
subject: dezentrale Steuerung
subject: konfliktfrei
subject: bidirektionales Routing
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Durch die fortschreitende Digitalisierung der industriellen Produktionskette (Industrie 4.0) werden auch neue Anforderungen an industrielle Fördersysteme gestellt. So müssen diese autonom und flexibel auf Änderungen innerhalb der Produktion reagieren, zu denen z.B. Layoutänderungen zählen. Bereits existierende Steuerungsalgorithmen für modulare Fördersysteme können schon heute Konflikte verhindern, zu denen Kollisionen, Verklemmungen, Livelocks und das Verhungern zählen. Jedoch ist keiner der existierenden Algorithmen zeitfensterbasiert. Durch einen zeitfensterbasierten Steuerungsalgorithmus wird es möglich, unmittelbar die wichtigste Zielgröße eines Fördersystems zu optimieren: Den Durchsatz. In dieser Arbeit wird ein zeitfensterbasierter Steuerungsalgorithmus für modulare Fördersysteme vorgestellt. Die Korrektheit des Algorithmus wird bewiesen, seine Laufzeit bestimmt und das Systemverhalten in einer Simulationsumgebung untersucht.
Measurement of Direct Photons in pp and Pb-Pb Collisions with ALICE
Creators: name: Wilde, Martin
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The measurement of the direct photon transverse momentum spectrum in Pb-Pb collisions at \unit[$\sqrt{s_{_{NN}}}=2.76]{TeV}$ with data taken by the ALICE experiment is presented. The measurement shows a clear direct-photon signal for 0-40% most central collisions below \unit[4]{GeV/$\mathrm{c}$} that can not be described by next-to-leading-order perturbative QCD (NLO pQCD) calculations. Above this value of $p_{\mathrm{T}}$ the result is in agreement with pQCD predictions. The low $p_{\mathrm{T}}$ signal is expected to have thermal photon contributions. The inverse slope parameter of an exponential fit is extracted as $T_{\mathrm{LHC}}=\unit[304\pm 51^{\mathrm{syst+stat}}]{MeV}$. For a baseline measurement the analysis is performed for proton-proton collisions at \unit[$\sqrt{s}=7]{TeV}$ and for peripheral (40-80%) Pb-Pb collisions. Both results show no low $p_\mathrm{T}$ direct-photon signal and are in agreement with pQCD calculations.
Direct optical measurement of light coupling into planar waveguide by plasmonic nanoparticles
Creators: name: Pennanen, Antti M.
name: Toppari, J. Jussi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Coupling of light into a thin layer of high refractive index material by plasmonic nanoparticles has been widely studied for application in photovoltaic devices, such as thin-film solar cells. In numerous studies this coupling has been investigated through measurement of e.g. quantum efficiency or photocurrent enhancement. Here we present a direct optical measurement of light coupling into a waveguide by plasmonic nanoparticles. We investigate the coupling efficiency into the guided modes within the waveguide by illuminating the surface of a sample, consisting of a glass slide coated with a high refractive index planar waveguide and plasmonic nanoparticles, while directly measuring the intensity of the light emitted out of the waveguide edge. These experiments were complemented by transmittance and reflectance measurements. We show that the light coupling is strongly affected by thin-film interference, localized surface plasmon resonances of the nanoparticles and the illumination direction (front or rear).
description: 13 pages, 7 figures. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: [http://dx.doi.org/10.1364/OE.21.000A23] Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject
Monitoring Control Updating Period In Fast Gradient Based NMPC
Creators: name: Alamir, Mazen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Systems and Control (eess.SY)
subject: Software Engineering (cs.SE)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this paper, a method is proposed for on-line monitoring of the control updating period in fast-gradient-based Model Predictive Control (MPC) schemes. Such schemes are currently under intense investigation as a way to accommodate for real-time requirements when dealing with systems showing fast dynamics. The method needs cheap computations that use the algorithm on-line behavior in order to recover the optimal updating period in terms of cost function decrease. A simple example of constrained triple integrator is used to illustrate the proposed method and to assess its efficiency.
description: 6 pages, 8 Figures
Pseudoholomorphic curves on nearly Kahler manifolds
Creators: name: Verbitsky, Misha
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: Let M be an almost complex manifold equipped with a Hermitian form such that its de Rham differential has Hodge type (3,0)+(0,3), for example a nearly Kahler manifold. We prove that any connected component of the moduli space of pseudoholomorphic curves on M is compact. This can be used to study pseudoholomorphic curves on a 6-dimensional sphere with the standard (G_2-invariant) almost complex structure.
description: 6 pages
Highly selective probe of a copper(II) complex based on a coumarin derivative for hydrogen sulfide detection
Creators: name: Chen, Yanmei
name: Shang, Xuefang
name: Pan, Weitong
name: Li, Congshu
name: Wang, Tianyun
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Plant Biology

description: A fluorescent probe 1 containing copper(II) had been designed and synthesized based on a coumarin derivative. The molecular structure of probe 1 was characterized by 1H NMR, HRMS, IR, and elemental analysis. The interactions of 1 with biologically important anions and amino acid were determined by UV–Vis, fluorescence, and HRMS titration experiments. Results indicated that probe 1 showed the highest binding ability for HS− among studied anions (AcO−, H2PO4 −, F−, Cl−, Br−, and I−) and cysteine in pure dimethyl sulfoxide (DMSO) and HEPES buffer solution. As we expected, the response of UV–Vis spectra in aqueous solution was stronger than that of pure DMSO solvent. In addition, the binding ability for HS− was not hindered by the existence of other anions. HRMS titration experiment showed that the interacted mechanism was that the copper(II) ion in 1 was captured by HS− and then free ligand released. Furthermore, the detection limit of probe 1 with HS− was carried out through UV–Vis titration showing 1 to be highly sensitive for HS−.
Instantons on the six-sphere and twistors
Creators: name: Lechtenfeld, Olaf
name: Popov, Alexander D.
Publisher: name: Melville, NY : AIP Publishing
Year: 2012
Subjects: subject: Yang-Mills equation
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We consider the six-sphere S6 = G2/SU(3) and its twistor space Z=G2/U(2) associated with the SU(3)-structure on S6. It is shown that a Hermitian Yang-Mills connection (instanton) on a smooth vector bundle over S6 is equivalent to a flat partial connection on a vector bundle over the twistor space Z. The relation with Tian's tangent instantons on ℝ7 and their twistor description are briefly discussed. © 2012 American Institute of Physics.
Efficient entanglement concentration for arbitrary less-entangled N-atom state
Creators: name: Zhou, Lan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A recent paper (Phys. Rev. A 86, 034305 (2012)) proposed an entanglement concentration protocol (ECP) for less-entangled $N$-atom GHZ state with the help of the photonic Faraday rotation. It is shown that the maximally entangled atom state can be distilled from two pairs of less-entangled atom states. In this paper, we put forward an improved ECP for arbitrary less-entangled N-atom GHZ state with only one pair of less-entangled atom state, one auxiliary atom and one auxiliary photon. Moreover, our ECP can be used repeatedly to obtain a higher success probability. If consider the practical operation and imperfect detection, our protocol is more efficient. This ECP may be useful in current quantum information processing.
description: 10 page, 5 figure