cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fluid/Gravity Correspondence For General Non-rotating Black Holes
Creators: name: Wu, Xiaoning
name: Ling, Yi
name: Tian, Yu
name: Zhang, Chengyong
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we investigate the fluid/gravity correspondence in spacetime with general non-rotating weakly isolated horizon. With the help of Petrov-like boundary condition and large mean curvature limit, we show that the dual hydrodynamical system is described by a generalized forced incompressible Navier-Stocks equation. Specially, for stationary black holes or those spacetime with some asymptotically stationary conditions, such a system reduces to a standard forced Navier-Stocks system.
description: 21pages
DESIGN AND APPLICATION OF NANOCOMPOSITE BASED ON CLAY MINERAL (GLAUCONITE) AS ECOFRIENDLY FERTILISER FOR AGRICULTURE
Creators: name: Rudmin, Maxim
name: Makarov, Boris
name: Prokopiy Maximov
name: Dasi, Evan
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: nanocomposites
glauconite
agriculture
fertilisers
intercalation
environmental conservation

description: The application of nanocomposite fertilisers represents a progressive stride towards harmonising agronomical techniques with environmental conservation. Many studies have been embarked upon to gauge the effectiveness of fertilisers, engaging various substances encompassing polymers, clay minerals, and an amalgamation of synthetic and natural elements. Among these, using clay minerals, such as glauconite, which are both economical and readily accessible, provides an attractive substitute for numerous artificial substances. Glauconite is an adept inhibitor, consisting of nano and micro-particles with vast specific surface areas that maintain surface charge and provide ion-available interlayer sites, thus facilitating nutrient interchange. This study explores constructing and using nanocomposite fertilisers from glauconite amalgamated with a carbamide solution-gel. The ensuing nanocomposite exhibits enhanced intercalation between ammonium and glauconite, as substantiated by extensive analyses using techniques such as XRD, TEM, FTIR, TG-DSC, SEM-EDS, Brunauer–Emmett–Teller (BET) analysis, soil leaching experiments, lab and field agricultural tests. The mineral nanocomposites, replete with an assortment of novel functionalities, disclose that 20% of the carbamide solution results in an escalation of the intercalated N ratio to 8, predominantly within the smectite layers of glauconite. The decrease of a specific surface, the total pore volume and the average pore size in the nanocomposite reflects the adsorption of carbamide substances within the meso- and macropores of glauconite particles. The chemically synthesised glauconite nanocomposite retains an original spherical morphology, accompanied by a distinctive microlayer near the surface, and exhibits an increased nitrogen ratio, indicative of a superior filtration capability. Controlled-action nitrogen and potassium nanocomposite fertiliser were realised using glauconite as an inhibitor. The expectation of targeted and controlled release of nutrients such as ammonium, nitrate and potassium is facilitated by their multifarious forms within the glauconite. Chemically tailored glauconite nanocomposite confers numerous benefits, including a micro-granular mineral structure, a permeable internal morphology, the encapsulation of N compounds within diverse pore structures, and accessible potassium. Such characteristics of the nanocomposite aid in invigorating plant growth and development when these fertilisers are dispensed onto the soil.
Darstellung von Chelatharzen durch Templatpolymerisation von Si-verknüpftem 7-Hydroxy-3-methyl-4-vinyl-1-indanon und deren Untersuchung
Creators: name: Schnitter, Birgit
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2000
Subjects: subject: Chelating resins
subject: template polymerisation
subject: hydroxyindanone
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Some unexplored features of the nonlinear compressive magnetoacoustic Alfvenic waves
Creators: name: Vranjes, J.
name: Pandey, B. P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The theory of nonlinear magnetoacoustic wave in the past has strictly been focused on purely compressive features of the mode. We show that a complete set of nonlinear equations necessarily includes both compressional and shear components of the magnetic field. These two turn out to be described by exactly the same nonlinear equations, which make the use of such a complete full set of equations far less complicated than expected. Present results should considerably enrich the theory of these waves by opening up new frontiers of investigation and providing some completely new types of nonlinear solutions.
description: Phys. Scripta, to be published
title: Монтаж и испытания систем самолета
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2022

description: В учебном пособии рассмотрена классификация монтажных работ, испытаний и методов контроля. Показаны процессы монтажа трубопроводных, электропроводных и механических систем самолета, структура контрольно-испытательных стендов. Приведены классификация бортовых систем самолета, виды испытаний систем и их элементов. Учебное пособие может быть использовано студентами, обучающимися по специальности среднего профессионального образования 25.02.04 «Летная эксплуатация летательных аппаратов», при изучении дисциплины «Воздушные суда, двигатели, функциональные системы, их летная эксплуатация и обеспечение безопасности полетов».
DETERMINATION OF THE ENVIRONMENTAL TEMPERATURE DEGREE ON MAGNETIC LEVITATION CORE INDUCTION
Creators: name: Afandiyev, Orkhan
name: Allahverdiyeva, Aynura
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: magnetic induction
magnetic levitation systems
measuring chamber
magnetic core
solenoid

description: The issues on determining the degree of influence of temperature changes caused by climatic features of the area, internal heat generation during the operation of an electronic circuit and other reasons on the value of the magnetic induction of the levitating magnetic core are analyzed in the article. Based on the results of preliminary studies, the model of the Magnetic Levitation System (MLS), the dependence on the temperature of the magnetic induction on the levitating core was obtained. The preliminary investigation results of the MLS show that the magnetic induction of the levitating core is a linear monotonically decreasing function of temperature. The aim of this issue is to study the effect of temperature on the nature of the power characteristics of the MLS, the temperature in the measuring chamber of which has a significant effect, which indicates the violation of the levitation current stability caused by temperature changes in the magnetic induction of the levitating magnetic core (which indicates the violation of the levitation current stability).
DETERMINATION OF DRINKING WATER RESOURCES IN THE KARABAKH PLAIN (AGHDAM REGION): THE ROLE OF EXPLORATION AND RESEARCH
Creators: name: Karimov, Vagif
name: Ismailova, Mehriban
name: Sharifov, Jafar
name: Nefedov, Yuri
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: ground water
water strikes
water-bearing horizons
chemical composition
level of mineralization
filtration factor
specific capacity

description: Aghdam is one of the regions of Azerbaijan, located in the south-west of the country and administratively belong to the center of Aghdam city. Until 1992, the Aghdam region, with an area of 1250 km², was considered one of the most developed districts of the republic. However, 77.4% of territory (846.7 km²) was subjected to occupation. The relief of most part of the Aghdam region is flat, although there is also a small upland area. After the liberation of the territory of the region, in order to restore agricultural and animal husbandry activities, as well as, in accordance with the observed global climate changes, it becomes clear that it is necessary to carefully study and evaluate the water potential of fresh water in this region. Similar studies are key to successful restoration of agricultural activity and maintenance of sustainable development in new climatic conditions. The article uses data obtained during exploratory drilling. By conducting comprehensive studies and analyzing available literary sources, the characteristics of the hydrogeological situation associated with the occurrence of groundwater and water strikes were clarified. Also, the hydrological conditions in the area where the research was conducted were studied and analyzed. The conditions of groundwater formation, chemical composition, mineralization and other indicators of groundwater are studied, the areas of their distribution are determined, and recommendations are given for their rational use for irrigation and other purposes in agriculture and to provide the need for fresh water in the liberated Aghdam region.
title: COSMO Technical Report No. 28: RADAR_MIE_LM and RADAR_MIELIB Calculation of Radar Reflectivity from Model Output
Creators: name: Blahak, Ulrich
Publisher: name: COSMO Consortium for Small-Scale Modelling
Year: 2016

description: The Technical Reports are intended mainly for internal use within the COSMO group (COSMO = Consortium for Small Scale Modeling), but also to inform other groups on model changes and research activities. The purpose of the Technical Reports is 1. to document scientific research activities, 2. to document technical changes to the model system, 3. to give an overview on new components of the model system.
Zellkultur von Shiitake : Schwefelmetabolismus und Lentinsäurebildung im Speisepilz Lentinus edodes
Creators: name: Spaether, Sabine
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2000
Subjects: subject: Lentinus edodes
subject: optimization of nutrition medium
subject: lentinic acid
subject: sulfur containing flavour compounds
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
title: COSMO Technical Report No. 29: A Stochastic Pattern Generator for ensemble applications
Creators: name: Tsyrulnikov, M.
name: Gayfulin, D.
Publisher: name: COSMO Consortium for Small-Scale Modelling
Year: 2016

description: The Technical Reports are intended mainly for internal use within the COSMO group (COSMO = Consortium for Small Scale Modeling), but also to inform other groups on model changes and research activities. The purpose of the Technical Reports is 1. to document scientific research activities, 2. to document technical changes to the model system, 3. to give an overview on new components of the model system.
Stress dependence of the critical currents in neutron irradiated (RE)BCO coated conductors
Creators: name: Emhofer, J.
name: Eisterer, M.
name: Weber, H. W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The application of HTS coated conductors in future fusion or accelerator magnets is currently of increasing interest. High Lorentz forces and therefore high hoop stresses act on the conductors in large coils. The conductor is furthermore exposed to neutron radiation in fusion or accelerator magnets. The expected neutron fluence over the desired lifetime of such magnets can be simulated by irradiation experiments in a fission reactor. The coated conductors were characterized in the pristine state and after irradiation to the ITER design fluence. The sensitivity of the critical currents to applied stress was measured in liquid nitrogen. The cold part of the set-up was positioned between a rotatable split coil electro-magnet for assessing the Ic-anisotropy up to 1.4T under maximum Lorentz force configuration. The Ic-sensitivity to applied stress changed significantly in the GdBCO/IBADconductors after irradiation, whereas nearly no change was observed in the YBCO/RABiTS-conductor. Furthermore, Ic and Tc were strongly reduced in the GdBCO/IBAD-sample after irradiation. The angular dependence of Ic changed for both samples in different ways after the irradiation, but no change in the angular dependence was observed upon applying stress. The high neutron capture cross-section of Gd and the resulting strong reduction of Tc seem to be responsible for the different stress dependence of Ic in irradiated Gd-123 coated conductors.
Scheduling unit processing time arc shutdown jobs to maximize network flow over time: complexity results
Creators: name: Boland, Natashia
name: Kalinowski, Thomas
name: Kapoor, Reena
name: Kaur, Simranjit
Publisher: name: arXiv
Year: 2013
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences
subject: 90C10, 90B10, 68Q25

description: We study the problem of scheduling maintenance on arcs of a capacitated network so as to maximize the total flow from a source node to a sink node over a set of time periods. Maintenance on an arc shuts down the arc for the duration of the period in which its maintenance is scheduled, making its capacity zero for that period. A set of arcs is designated to have maintenance during the planning period, which will require each to be shut down for exactly one time period. In general this problem is known to be NP-hard. Here we identify a number of characteristics that are relevant for the complexity of instance classes. In particular, we discuss instances with restrictions on the set of arcs that have maintenance to be scheduled; series parallel networks; capacities that are balanced, in the sense that the total capacity of arcs entering a (non-terminal) node equals the total capacity of arcs leaving the node; and identical capacities on all arcs.
Characterizing the Dark Count Rate of a Large-Format MKID Array
Creators: name: Swimmer, Noah
name: Clay, W. Hawkins
name: Zobrist, Nicholas
name: Mazin, Benjamin A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present an empirical measurement of the dark count rate seen in a large-format MKID array identical to those currently in use at observatories such as Subaru on Maunakea. This work provides compelling evidence for their utility in future experiments that require low-count rate, quiet environments such as dark matter direct detection. Across the bandpass from 0.946-1.534 eV (1310-808 nm) an average count rate of $(1.847\pm0.003)\times10^{-3}$ photons/pixel/s is measured. Breaking this bandpass into 5 equal-energy bins based on the resolving power of the detectors we find the average dark count rate seen in an MKID is $(6.26\pm0.04)\times10^{-4}$ photons/pixel/s from 0.946-1.063 eV and $(2.73\pm0.02)\times10^{-4}$ photons/pixel/s at 1.416-1.534eV. Using lower-noise readout electronics to read out a single MKID pixel we demonstrate that the events measured while the detector is not illuminated largely appear to be a combination of real photons, possible fluorescence caused by cosmic rays, and phonon events in the array substrate. We also find that using lower-noise readout electronics on a single MKID pixel we measure a dark count rate of $(9.3\pm0.9)\times10^{-4}$ photons/pixel/s over the same bandpass (0.946-1.534 eV) With the single-pixel readout we also characterize the events when the detectors are not illuminated and show that these responses in the MKID are distinct from photons from known light sources such as a laser, likely coming from cosmic ray excitations.
description: 20 pages, 9 figures, 3 tables. Accepted by Optics Express
DEVELOPMENT OF ACHIMOV DEPOSITS SEDIMENTATION MODEL OF ONE OF THE WEST SIBERIAN OIL AND GAS PROVINCE FIELDS
Creators: name: Nefedov, Yury
name: Gribanov, Danila
name: Gasimov, Emil
name: Peskov, Dmitry
name: Han, Gao
name: Vostrikov, Nikita
name: Shafagat Pashayeva
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: Sediment modelling
Achimov sediments
deep-sea cones of export
unsteady flow algorithms

description: The Geological Process Modelling (GPM) module developed for the Petrel software package enables digital modelling of natural processes of erosion, transportation and deposition of clastic sediments. Modelling of cones of removal was carried out for Achimov strata of the Western Siberia field. The results obtained characterize the expected sediment geometry, lithology distribution due to sea level changes, paleogeography, paleoclimate, tectonics and sediment input rates. The results allow the evaluation of different options and enable us to predict the distribution of prospective oil and gas bearing sediments in areas where no wells have been drilled. As a result, a sedimentation model was obtained, which reflects the formation of the elements of the sedimentation system of the study area. According to the sedimentation model, the main facies zones of the turbidite sediments under consideration are identified.
Die Pflanzengesellschaften der Weg- und Straßenränder in der Region Hannover und die Beziehungen dieser Gesellschaften zu Gestein und Boden
Creators: name: Sbrzesny, Kathrin
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2000
Subjects: subject: Plant communities on waysides
subject: area of Hannover
subject: rock
subject: soil
subject: nitrogen supply
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: [no abstract]
Einsatz hochkapazitiver Anionenaustauscher für die Spurenbestimmung anorganischer Desinfektionsnebenprodukte in Wässern
Creators: name: Schminke, Gabriele
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2000
Subjects: subject: Ion chromatography
subject: inorganic disinfection by-products
subject: post-column-reaction
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Das Zwei-Signalwege-Modell des Todesrezeptors CD95 : Implikationen für das Verständnis der T-Zell-Immunantwort
Creators: name: Schmitz, Ingo
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2000
Subjects: subject: Apoptosis
subject: CD95
subject: signal transduction
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
title: COSMO Technical Report No. 31: CALMO-Progress Report
Creators: name: Khain, P.
name: Carmona, I.
name: Voudouri, A.
name: Avgoustoglou, E.
name: Bettems, J.-M.
name: Grazzini, F.
name: Kaufmann, P.
Publisher: name: COSMO Consortium for Small-Scale Modelling
Year: 2017

description: The Technical Reports are intended mainly for internal use within the COSMO group (COSMO = Consortium for Small Scale Modeling), but also to inform other groups on model changes and research activities. The purpose of the Technical Reports is 1. to document scientific research activities, 2. to document technical changes to the model system, 3. to give an overview on new components of the model system.
Der Plateau-Übergang im Quanten-Hall-Effekt : Experimente zur Temperatur- und Frequenzabhängigkeit
Creators: name: Hohls, Frank
Publisher: name: Hannover : Universität
Year: 2000
Subjects: subject: Quantum hall effect
subject: plateau transition
subject: scaling
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
DEVELOPMENT OF MOLECULAR GENETIC APPROACHES TO PREDICT THE OCCURANCE OF FOCI OF BACTERIAL DISEASES IN FOREST ECOSYSTEMS
Creators: name: Ivashchenko, Lyubov
name: Panteleev, Stanislav
name: Baranov, Oleg
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: primers
bacterial diseases
marker locus

description: In the course of the study, specific primers were developed to identify 20 species of phytopathogenic bacteria from 12 genera associated with the occurrence of infectious diseases in seven forest-forming species of Belarus. The results showed that the developed oligonucleotides are specific for the 16S (mtDNA and cpDNA) and 23S rRNA genes of the studied phytopathogenic bacteria. At a further stage of research, in vitro tests will be carried out to establish the effectiveness of diagnosing bacterial marker loci, both using pure cultures of pathogen isolates and samples of affected tissues of woody plants.
title: Suitability and Repeatability of a Photostress Recovery Test Device, the Macular Degeneration Detector (MDD-2), for Diabetes and Diabetic Retinopathy Assessment
titleType: Other
Creators: name: Loughman, James
Publisher: name: TU Dublin
Year: 2013

description: Background: Diabetic retinopathy can result in impaired photostress recovery time despite normal visual acuity and fundoscopic appearance. The Macular Degeneration Detector (MDD-2) is a novel flash photostress recovery time device. In this study, we examine the repeatability of the MDD-2 in normal and diabetic subjects. Methods: One hundred and ninety one (90 women, 101 men) subjects were recruited and divided into 1 of the 3 study groups (normal controls, n = 40; diabetes no retinopathy, n = 98; nonproliferative diabetic retinopathy, n = 53). Photostress recovery time was measured three times in the study eye using the MDD-2, each measurement separated by a 5-minute interval. Results: Repeated measures analysis of variance revealed no statistically significant learning or fatigue effects on intrameasurement repeatability for any group. Photostress recovery time measures were broadly similar and typically not statistically significantly different between study groups. The coefficient of repeatability reached clinically acceptable levels once the initial photostress recovery time measure, which demonstrated increased variability and latency compared with all subsequent measures, was excluded. Conclusion: The MDD-2 seems to provide repeatable photostress recovery time measurements among naive diabetic subjects. The device does not, however, seem capable of differentiating normal and nonproliferative diabetic eyes, and would not be suitable for inclusion in diabetic retinopathy screening protocol.
Polymermodifizierung von Metall- und Halbleiternanopartikeln durch ATRP "grafting from"-Polymerisation
Creators: name: Nuß, Stefan
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Polymer-nanoparticle hybrid materials
subject: "grafting from" mechanism
subject: ATPR polymerization
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
R144 revealed as a double-lined spectroscopic binary
Creators: name: Sana, H.
name: van Boeckel, T.
name: Tramper, F.
name: Ellerbroek, L. E.
name: de Koter, A.
name: Kaper, L.
name: Moffat, A. F. J.
name: Schnurr, O.
name: Schneider, F. R. N.
name: Gies, D. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: R144 is a WN6h star in the 30 Doradus region. It is suspected to be a binary because of its high luminosity and its strong X-ray flux, but no periodicity could be established so far. Here, we present new Xshooter multi-epoch spectroscopy of R144 obtained at the ESO Very Large Telescope (VLT). We detect variability in position and/or shape of all the spectral lines. We measure radial velocity variations with an amplitude larger than 250 km/s in NIV and NV lines. Furthermore, the NIII and NV line Doppler shifts are anti-correlated and the NIV lines show a double-peaked profile on six of our seven epochs. We thus conclude that R144 is a double-lined spectroscopic binary. Possible orbital periods range from 2 to 6 months, although a period up to one year is allowed if the orbit is highly eccentric. We estimate the spectral types of the components to be WN5-6h and WN6-7h, respectively. The high luminosity of the system (log Lbol/Lsun ~ 6.8) suggests a present-day total mass content in the range of about 200 to 300 Msun, depending on the evolutionary stage of the components. This makes R144 the most massive binary identified so far, with a total mass content at birth possibly as large as 400 Msun. We briefly discuss the presence of such a massive object 60 pc away from the R136 cluster core in the context of star formation and stellar dynamics.
description: Accepted for publication in MNRAS Letters, 5 pages, 3 figures
DIAGNOSIS OF THE RISK OF OIL LEAKS FROM PIPELINES
Creators: name: Hajar Ismayilova
name: Ismayilova, Fidan
name: Shahlarly, Mansur
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: technological and main pipes
oil leakages
hydrocarbon losses
the relative change of discharge
leakage area
degree of the leak

description: The research paper studies the issue of detecting the location and amount of hydrocarbon losses in cases of accidentdamage (spill), which occur during the transportation of oil and oil products via the technological and main pipes. The grapho-analytical method has been introduced and tested in order to determine a location and degree of the leakage following the change in working parameters.
ECOLOGY OF USED ENGINE OIL ADDINOL
Creators: name: Guseinova, Elvira
name: Hasanov, Gahraman
name: Akhyadov, Elman
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: used engine oil
chloric acid
carbon-containing agglomerate
IR spectroscopic
morphology
succinimide additives

description: Comprehensive spectroscopic studies of used and regenerated with chloric acid samples of ADDINOL engine oil were carried out. It was revealed that during the operation of engine oil, structural changes in hydrocarbon components, the formation of oxygen-containing compounds, and the accumulation of products of thermal destruction and friction occur. An assessment was made of the qualitative changes in used motor oil under the influence of chloric acid. Restoration of the structure of basic hydrocarbon components was established, complete removal of succinimide additives while retaining detergent-dispersant and extreme pressure additives, as well as removal of compounds containing hydroxyl groups and a highly dispersed carbon phase. It has been established that the precipitate is a carbon-containing agglomerate, which contains components of succinimide additives.
Effect of doping on the magnetostructural ordered phase of iron arsenides: A comparative study of the resistivity anisotropy in the doped BaFe$_2$As$_2$ with doping into three different sites
Creators: name: Ishida, Shigeyuki
name: Nakajima, Masamichi
name: Liang, Tian
name: Kihou, Kunihiro
name: Lee, Chul-Ho
name: Iyo, Akira
name: Eisaki, Hiroshi
name: Kakeshita, Teruhisa
name: Tomioka, Yasuhide
name: Ito, Toshimitsu
name: Uchida, Shin-ichi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In order to unravel a role of doping in the iron-based superconductors, we investigated the in-plane resistivity for BaFe$_2$As$_2$ doped at either of the three different lattice sites, Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$, BaFe$_2$(As$_{1-x}$P$_x$)$_2$, and Ba$_{1-x}$K$_x$Fe$_2$As$_2$, focusing on the doping effect in the low-temperature antiferromagnetic/orthorhombic (AFO) phase. A major role of doping in the high-temperature paramagnetic/tetragonal (PT) phase is known to change the Fermi surface by supplying charge carriers or by exerting chemical pressure. In the AFO phase, we found a clear correlation between the magnitude of residual resistivity and resistivity anisotropy. This indicates that the resistivity anisotropy originates from the anisotropic impurity scattering from dopant atoms. The magnitude of residual resistivity is also found to be a parameter controlling the suppression rate of AFO ordering temperature $T_s$. Therefore, the dominant role of doping in the AFO phase is to introduce disorder to the system, distinct from that in the PT phase.
description: 19 pages, 4 figures
DIAGNOSTICS OF RISKY MULTIPHASE FLOW ZONES IN OIL PIPELINES
Creators: name: Zeynalova, Gulnara
name: Gafar Ismayilov
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: hydraulic slope
pass-point
geodesic height
free-flow zone
stationary operational regime

description: This article examines the properties and formation of free-flow areas in the compressed profile of indicative oil pipelines. The risks of the formation of multiphase flow zones in oil pipelines were investigated and a method for diagnosis was developed. Additionally, this article studies the issues related to the presence of free-flow zones formed within the stationary regimes of oil pipelines, as well as the identification of their coordinates. Case studies are drawn based on the hydraulic slope and the pressure balance and contingent upon the lay, which aim to account for the identification of the location and sizes of such zones.
Nicht-invasive Analysemethoden und multivariate Datenauswertung zur automatisierten Beobachtung und Regelung von Bioprozessen
Creators: name: Hantelmann, Kirsten
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: 2D fluorescence spectroscopy
subject: PCA
subject: PLS
subject: S. cerevisiae
subject: E. coli
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Mikrobohren mit ultrakurzen Laserpulsen
Creators: name: Kamlage, Günter
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Laser drilling
subject: laser micromachining
subject: ultrafast laser
subject: Laserbohren
subject: Mikrobearbeitung
subject: Ultrakurzpuls-Laser
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: [no abstract]
The Physical Mirror Equivalence for the Local P^2
Creators: name: Cacciatori, Sergio Luigi
name: Compagnoni, Marco
name: Guerra, Stefano
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this paper we consider the total space of the canonical bundle of P^2 and we use a proposal by Hosono, together with results in Seidel and Auroux-Katzarkov-Orlov, to deduce the right physical mirror equivalence between D^b(K_{P^2}) and the derived Fukaya category of its mirror. By construction, our equivalence is compatible with the mirror map between moduli spaces and with the computation of Gromov--Witten invariants.
description: 21 pages, 6 figures
Molekulare Mechanismen der Säuresekretion des Magens : Lokalisation, Trafficking und die physiologische Rolle der K+-Kanäle Kir4.1 und KCNQ1 während der stimulierten Säuresekretion der Parietalzellen der Magenmukosa der Ratte bzw. des Kaninchens
Creators: name: Kaufhold, Marc-André
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Acid secretion
subject: Kir4.1
subject: KCNQ1
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
title: Josef Steinhausen, Ortskunde Trier-Mettendorf
Creators: name: Siebourg, Max
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: Josef Steinhausen, Ortskunde Trier-Mettendorf (= Publikationen der Gesellschaft für Rheinische Geschichtskunde XII 3: Archäologische Karte der Rheinprovinz I 1). Kartenmappe in 2° und Textband in 8° mit XX und 383 Seiten, 32 Tafeln und 38 Abbildungen im Text. Bonn, P. Hanstein, 1932.
ECONOMIC SECURITY IN EUROPEAN COUNTRIES: CHALLENGES, SOLUTIONS, AND RECOMMENDATIONS
Creators: name: Rizvan Aliev
name: Magomaev, Tamerlan
name: Apti Mentsiev
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: economy
economic risks
security
European countries

description: This research delves into the complexities of economic security in European countries, exploring the challenges posed by income inequality, unemployment, trade-offs in economic security measures, and the European population trap. A comprehensive review of literature, reports, and data provides insights into the multifaceted nature of economic security. The findings reveal persistent income disparities, hindering social cohesion and economic growth. Unemployment, driven by technological advancements, necessitates targeted workforce development and lifelong learning initiatives. Balancing defense spending with investments in domestic economic development is critical to enhancing both economic and national security. Addressing the risk of the European population trap demands responsible population control and sustainable resource management. The research emphasizes the interconnectedness of economic and national security, advocating for a holistic approach that integrates policies to foster economic resilience, promote social inclusion, and safeguard national interests. Policymakers must consider these multifaceted dimensions to ensure sustainable economic security and prosperity in the face of global challenges.
Investigating Bar Structure of Disc Galaxies via PRIMAL: A PaRtIcle-by-particle M2M ALgorithm
Creators: name: Hunt, Jason A. S.
name: Kawata, Daisuke
name: Martel, Hugo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have modified our particle-by-particle adaptation of the made-to-measure (M2M) method, with the aim of modelling the Galactic disc from upcoming Galactic stellar survey data. In our new particle-by-particle M2M algorithm, PRIMAL, the observables of the target system are compared with those of the model galaxy at the position of the target stars, i.e. particles. The mass of the model particles are adjusted to reproduce the observables of the target system, and the gravitational potential is automatically adjusted by the changing mass of the particles. This paper builds upon our previous work, introducing likelihood-based velocity constraints in PRIMAL. In this paper we apply PRIMAL to barred disc galaxies created by a N-body simulation in a known dark matter potential, with no error in the observables. This paper demonstrates that PRIMAL can recover the radial profiles of the surface density, velocity dispersion in the radial and perpendicular directions, and the rotational velocity of the target discs, along with the apparent bar structure and pattern speed of the bar, especially when the reference frame is adjusted so that the bar angle of the target galaxy is aligned to that of the model galaxy at every timestep.
description: 13 pages, 10 figures, Accepted 2013 April 16. Received 2013 April 8; in original form 2013 February 4
Metabolische Anpassung von Skelettmuskelzellen in Kultur : Stimuli und Signalwege, die zu Veränderungen der metabolischen Kapazität führen
Creators: name: Hanke, Nina
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: AMPK
subject: glycogen
subject: calcium ionosphore
subject: GAPDH
subject: PGC-1
subject: citrate synthase
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Simultaneous computation of the row and column rank profiles
Creators: name: Dumas, Jean-Guillaume
name: Pernet, Clément
name: Sultan, Ziad
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: Mathematical Software (cs.MS)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Gaussian elimination with full pivoting generates a PLUQ matrix decomposition. Depending on the strategy used in the search for pivots, the permutation matrices can reveal some information about the row or the column rank profiles of the matrix. We propose a new pivoting strategy that makes it possible to recover at the same time both row and column rank profiles of the input matrix and of any of its leading sub-matrices. We propose a rank-sensitive and quad-recursive algorithm that computes the latter PLUQ triangular decomposition of an m \times n matrix of rank r in O(mnr^{ω-2}) field operations, with ωthe exponent of matrix multiplication. Compared to the LEU decomposition by Malashonock, sharing a similar recursive structure, its time complexity is rank sensitive and has a lower leading constant. Over a word size finite field, this algorithm also improveLs the practical efficiency of previously known implementations.
ENGINEERING ESTIMATION OF AIR REGIME OF BUILDING FACADE SYSTEMS WITH FIRE CUT OFFS
Creators: name: Akbarova, Samira
name: Akbarli, Reyhan
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: hinged facade system
ventilated air gap
fire cut-off
coefficient of airflow velocity
engineering estimation
fire safety

description: The facade is one of the most important elements of the building in terms of its fire safety, as a fire leads to serious building damage and human casualties. The article considers the influence of fire cut-offs on the parameters of the airflow in the ventilated gap of the hinged facade system. An engineering estimation of solid and perforated horizontal fire cut-offs used in Azerbaijan is presented. As air exchange in the ventilated gap occurs in the thermo-gravitational mode, the features of the airflow movement in the gap are analyzed using the aerodynamic estimation method with the assumption that the gap is a single vertical air duct. Engineering estimation of the impact of cut-offs on the facade air regime is performed by the dependence on the coefficient of airflow velocity. It has been established that when using even a cut-off with a significant percentage of perforation it prevents necessary air exchange in the gap. A motivated justification is given for the need to use modernized cut-offs, which, during normal operation of the facade, do not interfere with the required air exchange in the gap, but in case of fire, cut-offs block the air movement in the gap and the ingress of burning drops of molten thermal insulation into the lower zones. The results of the engineering assessment can be used to further improve the regulatory framework for the design, installation, and reliable operation of facade systems with a ventilated air gap.
Untersuchungen zur Salztoleranz selektierter Rosen-Genotypen aus Sämlingspopulationen nach NaCl-Applikation
Creators: name: Khattab, Salah El-Din Hassan
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Salt tolerance
subject: selection
subject: accumulation
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: [no abstract]
Higher harmonics and ac transport from time dependent density functional theory
Creators: name: Oppenländer, Christian
name: Korff, Björn
name: Niehaus, Thomas A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on dynamical quantum transport simulations for realistic molecular devices based on an approximate formulation of time-dependent Density Functional Theory with open boundary conditions. The method allows for the computation of various properties of junctions that are driven by alternating bias voltages. Besides the ac conductance for hexene connected to gold leads via thiol anchoring groups, we also investigate higher harmonics in the current for a benzenedithiol device. Comparison to a classical quasi-static model reveals that quantum effects may become important already for small ac bias and that the full dynamical simulations exhibit a much lower number of higher harmonics. Current rectification is also briefly discussed.
description: submitted to J. Comp. Elec. (special issue)
A closed-form estimator for the multivariate GARCH(1,1) model
Creators: name: Sbrana, Giacomo
name: Poloni, Federico
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62M10, 91B84, 65F30

description: We provide a closed-form estimator based on the VARMA representation for the unrestricted multivariate GARCH(1,1). We show that all parameters can be derived using basic linear algebra tools. We show that the estimator is consistent and asymptotically normal distributed. Our results allow also to derive a closed form for the parameters in the context of temporal aggregation of multivariate GARCH(1,1) by solving the equations as in Hafner [2008].
ENVIRONMENTAL ECONOMICS AND SUSTAINABLE DEVELOPMENT
Creators: name: Suleymanov, Magomed
name: Aminat Huazheva
name: Akhyadov, Elman
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: sustainable development
environmental priorities
economic efficiency

description: In recent years, the problem of climate change has become one of the most urgent. Its negative consequences will be most pronounced in northern countries with a carbon-intensive economy, such as the Russian Federation, for which an increase in average annual temperature is fraught with the destruction of infrastructure, an increase in morbidity and mortality, and the introduction of climate regulation measures by foreign partners can lead to a decrease in exports, loss of external markets. Accordingly, ensuring the decarbonization of the economy for Russia is an important task. In this regard, the purpose of the work is to identify the problems of decarbonization of the Russian economy. In the course of the analysis of foreign experience, it was revealed that in countries with the largest volumes of greenhouse gas emissions, decarbonization tools are actively used, mainly emission quota systems, carbon taxes, technical standards, and bans on the sale of carbon-intensive products. A distinctive feature of the climate regulation system being developed in Russia is the desire to take into account the assimilation potential of ecosystems. The most promising tools for the decarbonization of the Russian economy are analyzed: quota systems, carbon landfills, the use of technologies for capturing and pumping carbon dioxide into the subsoil, and the development of electric transport. It has been determined that the main problem with the use of these tools is their lack of consistency: the start of their work is scheduled for almost the same time, while their effectiveness depends on the results of each other's work.
Chiral properties of hematite (α-Fe2O3) inferred from resonant Bragg diffraction using circularly polarized x-rays
Creators: name: Rodriguez-Fernandez, A.
name: Lovesey, S. W.
name: Scagnoli, V.
name: Staub, U.
name: Walker5, H. C.
name: Shukla, D. K.
name: Strempfer, J.
name: Blanco, J. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Chiral properties of the two phases - collinear motif (below Morin transition temperature, TM=250 K) and canted motif (above TM) - of magnetically ordered hematite (α-Fe2O3) have been identified in single crystal resonant x-ray Bragg diffraction, using circular polarized incident x-rays tuned near the iron K-edge. Magneto-electric multipoles, including an anapole, fully characterize the high-temperature canted phase, whereas the low-temperature collinear phase supports both parity-odd and parity-even multipoles that are time-odd. Orbital angular momentum accompanies the collinear motif, while it is conspicuously absent with the canted motif. Intensities have been successfully confronted with analytic expressions derived from an atomic model fully compliant with chemical and magnetic structures. Values of Fe atomic multipoles previously derived from independent experimental data, are shown to be completely trustworthy.
The relation between root respiration and absorption
Creators: name: Henderson, Leta Mae
Publisher: name: The University of Texas at Austin
Year: 1932
Subjects: subject: Plant respiration
subject: Root respiration
subject: Plant absorption of water
subject: Root absorption of water
subject: Plant energy expenditure
subject: Root energy expenditure
subject: Plants--Respiration
subject: Plants--Absorption of water
subject: Roots (Botany)--Physiology

description: 1. A method was devised for growing corn seedlings under sterile conditions to secure active, uniform, and normal growth in liquid culture in the laboratory. 2. A method was developed for obtaining the simultaneous measurements of root respiration and water absorption. 3. The carbon dioxide evolution of roots is measured by the change in the pH of the medium. This is practicable only in the absence of buffering salts, and hence with the root system in distilled water. 4. The oxygen absorption of the roots was measured by the micro-Winkler method. 5. In aerated rain water the rates of absorption and carbon dioxide evolution show a positive correlation. 6. The absolutes values for carbon dioxide evolution obtained in rain water are low because of the buffer action of traces of salts present. 7. In aerated distilled water, a positive correlation between the rates of carbon dioxide evolution and water absorption is shown. 8. The absolute values obtained in distilled water are higher than those in rain water. 9. The rates in distilled water more nearly express the true respiratory activity of the roots than do those in rain water. 10. Absorption of oxygen in distilled water correlates closely with water absorption. 11. The respiratory quotient Is less than 1, varying between 0.61 and 0.91. 12. The higher values of the respiratory quotient correspond with low rates of water absorption, indicating the transportation of carbon dioxide from the root. 13. The rates of absorption of water and of oxygen by the roots in Knop's solution show a positive correlation. 14. The rate of oxygen absorption in Knop's solution is greater than that in distilled water. 15. The absorption of water by corn roots is accompanied by a liberation of energy which has been computed from the respiratory exchange. 16. In the absorption of one cubic centimeter of distilled water 11.61 calories of energy were liberated. 17. Absorption in Knop's solution is accompanied by the liberation of 110 per cent more energy than in distilled water. 18. The greatest efficiency in absorption appears at the highest absorptive rates. 19. Absorptive activities of roots involve the expenditure of energy
title: Приемо-передающие устройства, линейные сооружения связи и источники электропитания: источники вторичного электропитания
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2022

description: В практикуме представлены сведения о трансформаторах, различного вида выпрямителях и стабилизаторах, умножителях напряжения, инверторах, DC/DC-преобразователях, бестрансформаторных источниках электропитания. Приведены методические указания по выполнению лабораторных работ в виртуальных стимуляторах электронных схем, а также исследуемые схемы основных электронных модулей источников электропитания. Практикум предназначен для студентов, обучающихся по специальностям среднего профессионального образования 10.02.02 «Информационная безопасность телекоммуникационных систем», 10.02.04 «Обеспечение информационной безопасности телекоммуникационных систем», изучающих дисциплину «Приемо-передающие устройства, линейные сооружения связи и источники электропитания».
Entwicklung eines quantitativen Lateral-Flow-Immunoassays zum Nachweis von Analyten in geringsten Konzentrationen
Creators: name: Klewitz, Timo M.
Publisher: name: Hannover : Universität
Year: 2005
Subjects: subject: Immunochromatography
subject: lateral flow assay
subject: Botulinum neurotoxin type D
subject: immunoassay
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]