cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Simulation of the thermal mode of the battery cabinet
Creators: name: Lezhnev, L.Yu.
name: Ivanov, D.A.
name: Velikoretskiy, A.A.
name: Nekrasov, A.S.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The paper presents the methodology and results of modeling the thermal regime of the battery Cabinet. The battery Cabinet in question is designed to accommodate batteries, cool the batteries and protect them from the adverse effects of external factors. Simulation of the thermal regime of the battery Cabinet is aimed at determining the thermal state of the batteries, as well as to assess the efficiency of the air cooling system and the layout of the Cabinet as a whole. The results obtained allow us to determine the uniformity of the speed and temperature of the air inside the battery Cabinet and the air flow required for cooling the batteries. The simulation data are used to clarify the area of placement of fans, the size and location of ventilation holes, as well as to clarify the relative location of shelves and battery modules inside the Cabinet. The simulation carried out on the nominal mode showed that the maximum temperature of the battery is 44.4°C. at the same time, the maximum temperatures of the balancing Board and connecting buses were 45°C and 49.4°C, respectively. As a result of the simulation, the necessary air flow is obtained, at which the operating temperature state of the batteries is achieved. Thus, at an incoming air temperature of 25°C, the required air flow rate is 224.3m3/h. Based on the results of the simulation, it was found that the existing design of the battery Cabinet does not require modifications in the form of additional screens to regulate the direction of cooling air flows. The results showed that the accepted arrangement of shelves and battery modules does not interfere with the movement of air inside the Cabinet.
title: Simulation of forced air cooling system of transport lithium-ion battery with finite element size variation
Creators: name: Khripach, N.A.
name: Korotkov, V.S.
name: Shustrov, F.A.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The report describes the process of modeling the battery cooling system of a hybrid vehicle in order to identify the causes of overheating of individual chemical cells during laboratory tests. Based on the analysis of the influence of finite element sizes and the method of constructing the calculated grid, the optimal parameters of the model were determined, which allowed to make changes in the battery design. The adequacy of the simulation is confirmed by the results of laboratory tests of the battery with a modified design.
New gravity-capillary waves at low speeds. Part 2: Nonlinear geometries
Creators: name: Trinh, Philippe H.
name: Chapman, S. Jonathan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 76B07, 76B15, 76B20, 76B45, 41A60, 30E10

description: When traditional linearised theory is used to study gravity-capillary waves produced by flow past an obstruction, the geometry of the object is assumed to be small in one or several of its dimensions. In order to preserve the nonlinear nature of the obstruction, asymptotic expansions in the low-Froude or low-Bond number limits can be derived, but here, the solutions are waveless to every order. This is because the waves are in fact, exponentially small, and thus beyond-all-orders of regular asymptotics; their formation is a consequence of the divergence of the asymptotic series and the associated Stokes Phenomenon. In Part 1, we showed how exponential asymptotics could be used to study the problem when the size of the obstruction is first linearised. In this paper, we extend the analysis to the nonlinear problem, thus allowing the full geometry to be considered at leading order. When applied to the classic problem of flow over a step, our analysis reveals the existence of six classes of gravity-capillary waves, from which two share a connection with the usual linearised solutions first discovered by Lord Rayleigh. The new solutions arise due to the availability of multiple singularities in the geometry, coupled with the interplay of gravitational and cohesive effects.
Measurement of the high-mass Drell--Yan differential cross-section in pp collisions at sqrt(s)=7 TeV with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This Letter reports a measurement of the high-mass Drell-Yan differential cross-section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC. Based on an integrated luminosity of 4.9 /fb, the differential cross-section in the Z/gamma* to e+e- channel is measured with the ATLAS detector as a function of the invariant mass, Mee, in the range 116 < Mee < 1500 GeV, for a fiducial region in which both the electron and the positron have transverse momentum pT > 25 GeV and pseudorapidity eta < 2.5. A comparison is made to various event generators and to the predictions of perturbative QCD calculations at next-to-next-to-leading order.
description: 8 pages plus author list (21 pages total), 3 figures, 2 tables, submitted to PLB, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2012-10/
Chern-Simons Theory with Wilson Lines and Boundary in the BV-BFV Formalism
Creators: name: Alekseev, Anton
name: Barmaz, Yves
name: Mnev, Pavel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the Chern-Simons theory with Wilson lines in 3D and in 1D in the BV-BFV formalism of Cattaneo-Mnev-Reshetikhin. In particular, we allow for Wilson lines to end on the boundary of the space-time manifold. In the toy model of 1D Chern-Simons theory, the quantized BFV boundary action coincides with the Kostant cubic Dirac operator which plays an important role in representation theory. In the case of 3D Chern-Simons theory, the boundary action turns out to be the odd (degree 1) version of the BF model with source terms for the B field at the points where the Wilson lines meet the boundary. The boundary space of states arising as the cohomology of the quantized BFV action coincides with the space of conformal blocks of the corresponding WZW model.
description: 25 pages
title: Equilibrium trajectories of aerosol particles in turbulent flow
Creators: name: Sugak, E.V.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: A model of aerosol particles motion under the action of external forces and forces associated with their flow is constructed. From the analysis of the results of calculation of equilibrium trajectories of particles it follows that in the ascending gas – dispersed flow particles under the influence of the axial velocity gradient as a whole move to the channel axis, in the descending-to the channel wall. The results are supported by the data of experimental studies.
NLP and CALL: integration is working
Creators: name: Antoniadis, Georges
name: Granger, Sylviane
name: Kraif, Olivier
name: Ponton, Claude
name: Zampa, Virginie
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: In the first part of this article, we explore the background of computer-assisted learning from its beginnings in the early XIXth century and the first teaching machines, founded on theories of learning, at the start of the XXth century. With the arrival of the computer, it became possible to offer language learners different types of language activities such as comprehension tasks, simulations, etc. However, these have limits that cannot be overcome without some contribution from the field of natural language processing (NLP). In what follows, we examine the challenges faced and the issues raised by integrating NLP into CALL. We hope to demonstrate that the key to success in integrating NLP into CALL is to be found in multidisciplinary work between computer experts, linguists, language teachers, didacticians and NLP specialists.
Additional file 26 of Evidence for causal effects of polycystic ovary syndrome on oxidative stress: a two-sample mendelian randomisation study
Creators: name: Yifu, Pu
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Supplementary Material 26
Synthesis of Zeolite LTN-(SOD) Self-Supporting Membranes from SiO2-Rich Industrial Waste
Creators: name: Petrov, Valeriy
name: Buhl, Josef-Christian
Publisher: name: Wuhan : Scientific Research Publishing
Year: 2018
Subjects: subject: LTN Zeolite
subject: Self-Supporting Membrane
subject: 60°C Synthesis
subject: Industrial Waste
subject: Flotation
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Synthesis of zeolite LTN (“Linde Type N”) was investigated under insertion of a SiO2-rich filtration residue (FR) from waste water cleaning of the silane production. A new synthesis procedure was therefore developed applying a flotation mechanism with the aim to grow LTN in form of thin membrane like sheets. Preparation starts with preactivation of FR by slurrying first in alkaline solution, followed by an addition of aluminate solution and citric acid. The latter was added as suitable chelating agent for the initiation of the flotation process. In the course of these experiments, we succeeded in synthesizing zeo-lite LTN with more or less zeolite SOD as byproduct in the form of a stable compact membrane-like layer at low temperature of 60℃. The crystallization was performed under isotherm static conditions in an open reaction system without addition of organic templates as structure directing agents (OSDA’s). FR was utilized as a total substitute of sodium silicate in all experiments and an expansive pre-treatment procedure like calcinations was not needed. Furthermore, membrane formation with LTN of usual synthesis needs chemically functionalized supports. In contrast self-supporting membranous LTN layers were grown for the first time in the present study.
title: Durability of nonlinear deformable shallow shells and plates in the absence of tangential displacements on the circuit
Creators: name: Annina, O.G.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The article describes the methods developed by the author for determining the durability of nonlinearly deformable flexible shallow shells and plates in the absence of tangential displacements on the circuit. The leading parameter of the NKZ solution is the deflection parameter in the center of the shell. Formulas for calculating the durability of flexible gently sloping shells and plates are given. Presented graphs of the results.
Tailoring Composition and Material Distribution in Multicomponent Cryoaerogels for Application in Photocatalysis
Creators: name: Freytag, Axel
name: Günnemann, Carsten
name: Naskar, Suraj
name: Hamid, Saher
name: Lübkemann, Franziska
name: Bahnemann, Detlef W.
name: Bigall, Nadja C.
Publisher: name: Washington D.C. : American Chemical Society
Year: 2018
Subjects: subject: aerogel
subject: colloidal nanoparticles
subject: cryoaerogelation
subject: multicomponent
subject: photocatalytic hydrogen evolution
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: In this article, we demonstrate the fabrication of tailored multicomponent cryoaerogels from colloidal nanoparticles via the cryogelation method. With this method, it is possible to control the amount of components very precisely. Furthermore, the microscopic distribution of the different nanoparticle components in the resulting monolithic structure is shown to be adjustable by simply mixing calculated amounts of colloidal nanoparticle solutions with a suitable surface charge. We focus on titania cryoaerogels due to their potential for optical applications and investigate the properties of synthesized titania-gold cryoaerogels in dependency of the composition. In addition, titania-platinum cryoaerogels were tested for photocatalytic applications such as hydrogen evolution and showed a significant increase in performance and stability compared to their respective colloidal solutions. While showing comparable results for hydrogen evolution with aerogels as reported in literature, the fabrication is much faster and less complex and therefore might enable future industrial application.
title: Application of methods of the theory of plasticity for research of technological processes deformation on RKC
Creators: name: Kondratyev, V.I.
name: Potupchik, A.I.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The work theme is devoted application of methods of the theory of plasticity for research of technological processes deformation on RKC (radially-kovochnyh cars) and definitions of technological parametres which are used by working out of program modules at creation CAD system of designing of technology deformation on this equipment.
The biosynthesis of pyoverdines
Creators: name: Ringel, Michael T.
name: Brüser, Thomas
Publisher: name: Graz : Shared Science Publishers
Year: 2018
Subjects: subject: Pyoverdines
subject: iron starvation
subject: Pseudomonas fluorescens
subject: Pseudomonas aeruginosa
subject: non-ribosomal peptide synthetases
subject: periplasmic tailoring
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell biology
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Pyoverdines are fluorescent siderophores of pseudomonads that play important roles for growth under iron-limiting conditions. The production of pyoverdines by fluorescent pseudomonads permits their colonization of hosts ranging from humans to plants. Prominent examples include pathogenic or non-pathogenic species such as Pseudomonas aeruginosa, P. putida, P. syringae, or P. fluorescens. Many distinct pyoverdines have been identified, all of which have a dihydroxyquinoline fluorophore in common, derived from oxidative cyclizations of non-ribosomal peptides. These serve as precursor of pyoverdines and are commonly known as ferribactins. Ferribactins of distinct species or even strains often differ in their sequence, resulting in a large variety of pyoverdines. However, synthesis of all ferribactins begins with an L-Glu/D-Tyr/L-Dab sequence, and the fluorophore is generated from the D-Tyr/L-Dab residues. In addition, the initial L-Glu residue is modified to various acids and amides that are responsible for the range of distinguishable pyoverdines in individual strains. While ferribactin synthesis is a cytoplasmic process, the maturation to the fluorescent pyoverdine as well as the tailoring of the initial glutamate are exclusively periplasmic processes that have been a mystery until recently. Here we review the current knowledge of pyoverdine biosynthesis with a focus on the recent advancements regarding the periplasmic maturation and tailoring reactions.
ANALYSIS OF THE STRIP OPTICAL SYSTEM FOR CMB POLARIZATION MEASUREMENTS
Creators: name: REALINI, SABRINA
Publisher: name: Universit� degli Studi di Milano
Year: 2020

description: Nowadays, the detection of B-mode polarization anisotropies on large angular scales in the Cosmic Microwave Background polarization pattern is one of the major challenges in observational cosmology. In fact, it would give us an evidence in favor of the inflationary paradigm, shedding light on the physics of the very early Universe. Unfortunately, the amplitude of the signal is extremely low, at fractions of �K, and its detection requires high sensitivity instruments with thousands of detectors, a rigorous control of systematic effects, and a precise knowledge of the foreground polarized emission of our Galaxy. The Large Scale Polarization Explorer is one of the upcoming experiments devoted to the observation of the CMB polarization on large angular scales. It is based on two independent instruments: the STRIP ground-based telescope and the SWIPE balloon-borne mission. This thesis has been carried out in the context of the development of the STRIP instrument, a coherent polarimeter array that will observe the microwave sky from the Teide Observatory in Tenerife in two frequency bands centred at 43 and 95 GHz through a dual-reflector crossed-Dragone telescope of 1.5 m aperture. We present the implementation of the realistic electromagnetic model of the STRIP telescope, which includes all its optical elements and the surrounding structures. Since accurate predictions and measurements of the beam shape are essential both during the instrument design phase and for an in-depth knowledge of the whole-instrument response, we performed detailed optical simulations of the beam radiation properties. The results have been essential to assess the impact of the optical response on CMB polarization measurements when observing the sky with the nominal scanning strategy. This activity was mandatory because the optics is one of the major limiting factors for high precision measurements.
title: The device and the principle of operation of a single-roll crusher, working on the shift
Creators: name: Nikitin, A.G.
name: Krechetov, V.A.
name: Garyashin, V.V.
name: Gerike, P.B.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: A single-roll crusher equipped with stops on the roll and on the fixed cheek is described, due to which a shear stress state is generated in the process of operation in the piece being destroyed, which allows to reduce the energy consumption for crushing brittle materials.
title: Mechanics of double T-section rolling in universal grooves
Creators: name: Nepryakhin, S.O.
name: Radzhabav, Z.N.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The paper presents the formulation of the problem of rolling an H-beam in a universal beam groove. The main condition for rolling of shaped section is the equality of the drawing ratio for the profile elements. In order to determine the compression coefficients for the profile elements that would satisfy this condition, we applied the variational principle of the minimum total power.
The Sweet Spot between Inverted Indices and Metric-Space Indexing for Top-K–List Similarity Search
Creators: name: Milchevski, Evica
name: Anand, Avishek
name: Michel, Sebastian
Publisher: name: Konstanz : OpenProceedings
Year: 2015
Subjects: subject: top-k ranking
subject: Spearman’s Footrule
subject: similarity
subject: Konferenzschrift
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: We consider the problem of processing similarity queries over a set of top-k rankings where the query ranking and the similarity threshold are provided at query time. Spearman’s Footrule distance is used to compute the similarity between rankings, considering how well rankings agree on the positions (ranks) of ranked items (i.e., the L1 distance). This setup allows the application of metric index structures such as M- or BK-trees and, alternatively, enables the use of traditional inverted indices for retrieving rankings that overlap (in items) with the query. Although both techniques are reasonable, they come with individual drawbacks for our specific problem. In this paper, we propose a hybrid indexing strategy, which blends inverted indices and metric space indexing, resulting in a structure that resembles both indexing methods with tunable emphasis on one or the other. To find the sweet spot, we propose an assumption-lean but highly accurate (empirically validated) cost model through theoretical analysis. We further present optimizations to the inverted index component, for early termination and minimizing bookkeeping. The performance of the proposed algorithms, hybrid variants, and competitors is studied in a comprehensive evaluation using real-world benchmark data consisting of Web-search–result rankings and entity rankings based on Wikipedia.
Dark states in multi-mode multi-atom Jaynes-Cummings systems
Creators: name: Emary, Clive
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a system consisting of N two-level atoms inside an M-mode degenerate, driven cavity. We discuss the formation of dark states in this system and derive the conditions required for the observation of the dark-state anti-resonance in the cavity emission.
description: 5 pages; 3 figs
Bounded tree edit distance algorithms on dynamic graphs
Creators: name: Stacey, Jonathan Elijah Scott
Publisher: name: Macquarie University
Year: 2023
Subjects: classificationCode: 461305
subject: Data structures and algorithms

description: Finding the edit distance between two similar rooted ordered trees is a well-studied problem, as hierarchical data is often modelled as trees. Existing algorithms for this problem often use Dynamic Programming (DP) to improve efficiency. Dynamic graphs are graphs that change with time, captured by dynamic graph models, which enable dynamic graph algorithms to solve problems faster than would be possible on non-dynamic graphs. Both dynamic graph algorithms and DP seek to reuse previous work, and can operate in tandem: DP memoizes subproblem results, in turn providing a basis for reuse by algorithms on dynamic graphs for related graph (or tree) states. We describe a way of reusing DP-subproblems between algorithm executions when finding the distance between similar pairs of similar trees, using a well-grounded model of dynamic trees similar to snapshot, event, and streaming dynamic graph models, as well as to widely adopted version control software. Our technique needs only a constant factor more memory than the best existing algorithms, and it substantially improves performance in empirical testing. This approach should also allow for new variations of bounded algorithms for edit distance on trees, and may generalize to algorithms using DP for distance-based problems on other dynamic data structures.
Temporal rainfall disaggregation: from point disaggregation to spatial rainfall
Creators: name: Müller, Hannes
name: Haberlandt, Uwe
Publisher: name: München : European Geosciences Union
Year: 2014
Subjects: subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Rainfall time series with a high temporal resolution are needed in many hydrological and water resources management fields. Observed time series of this kind are very short in most cases, so they cannot be used. Contrary to this, time series with lower temporal resolution (daily measurements) exists for much longer periods. The objective is to derive time series with a long duration and a high resolution by disaggregating time series of the non-recording stations with information of time series of the recording stations. The multiplicative random cascade model can be used for temporal rainfall disaggregation of daily time series, whereby two versions are used to generate time series with hourly resolution. Time-series of different stations are disaggregated without consideration of other surrounding stations. This yields in unrealistic spatial pattern of rainfall events. With a simulated annealing algorithm relative diurnal cycles of the disaggregated time-series are resampled with the aim to reproduce spatial dependence of rainfall. Investigation areas are two catchments in Northern Germany with up to eight recording rainfall stations. The results show that the spatial rainfall characteristics can be reproduced by the simulating annealing algorithm, though with increasing number of stations the reproduction performance declines. A comparison of the resulting areal rainfalls for different catchments is another possibility to proof the implementation of spatial consistence. The duration curves of areal rainfall show underestimation if calculated from disaggregated and not annealed time series. After the annealing the duration curves fit better. Also observed extreme values are well represented by the median of the annealed time series.
Temporal synthesis of long continuous precipitation series for unobserved locations
Creators: name: Callau Poduje, Ana Claudia
name: Leimbach, Sören
name: Haberlandt, Uwe
Publisher: name: München : European Geosciences Union
Year: 2017
Subjects: subject: regionalization
subject: stochastic precipitation
subject: copulas
subject: continuous simulation
subject: high temporal resolution
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: In order to optimize the design and operation of urban drainage systems, long and continuous rain series in a high temporal resolution are essential. Unfortunately, available observations with such resolutions are usually limited and it is therefore convenient to develop a stochastic precipitation model to generate long time series in locations without observations. The precipitation model proposed is based on an alternating renewal framework and consists of two structures: external and internal. The components of these structures are described by probability distributions. Different regionalization methods based on descriptors of the locations are presented which are used for estimating the components of the external structure. A multiple linear regression analysis is performed based on the descriptors for this purpose. Alternatively, the descriptors are used for clustering stations and performing regional frequency analysis based on each cluster. Descriptors are as well combined using vine-copulas which result in high flexibility to reproduce different dependence structures. The state of Lower-Saxony and surrounding areas, located in the north-west of Germany is used to test the different methods. A total of 81 rainfall stations with high temporal resolution records, i.e. rainfall data every 5 minutes, are used for this purpose. The length of the available data ranges from 6 to 20 years. The descriptors include information available for the whole country like: position, topography and hydrometeorologic characteristics which are estimated from long term observations. The methods are compared by cross validation of different rain statistics. Given that the model is stochastic the evaluation is performed on the basis of ensembles of many long synthetic time series which are compared with observed ones. Uncertainties are as well considered in the analysis. The results show a good representation of the seasonal variability, good performance in reproducing the sample statistics of the rainfall characteristics. Advantages and disadvantages of the different proposed regionalization methods are presented and discussed.
Additional file 27 of Evidence for causal effects of polycystic ovary syndrome on oxidative stress: a two-sample mendelian randomisation study
Creators: name: Yifu, Pu
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Supplementary Material 27
title: The variational principle for determining the stress-strain state of two-dimensional, porous bodies
Creators: name: Gulgezli, A.S.
name: Afandiyev, O.Ya.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: In many branches of technology and production thin-walled constructions are used. In cases of filtration, thermal insulation, sound attenuation, etc. thin-walled, porous structures are used. When thin-walled structures are used, finite deformations take place, therefore, it becomes necessary to take into account geometric nonlinearity. To solve such nonlinear problems, the variational method is convenient. In this paper, we propose a functional whose Euler equations are equations of state taking into account the action of pores on the mechanical characteristics of the material, equilibrium equations taking into account geometric nonlinearity and the boundary conditions of a thin shell in velocities.
Onset of Non-Linearity in the Elastic Bending of Blocks
Creators: name: Destrade, Michel
name: Gilchrist, Michael D.
name: Murphy, Jerry G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The classical flexure problem of non-linear incompressible elasticity is revisited assuming that the bending angle suffered by the block is specified instead of the usual applied moment. The general moment-bending angle relationship is then obtained and is shown to be dependent on only one non-dimensional parameter: the product of the aspect ratio of the block and the bending angle. A Maclaurin series expansion in this parameter is then found. The first-order term is proportional to $μ$, the shear modulus of linear elasticity; the second-order term is identically zero, because the moment is an odd function of the angle; and the third-order term is proportional to $μ(4β-1)$, where $β$ is the non-linear shear coefficient, involving third-order and fourth-order elasticity constants. It follows that bending experiments provide an alternative way of estimating this coefficient, and the results of one such experiment are presented. In passing, the coefficients of Rivlin's expansion in exact non-linear elasticity are connected to those of Landau in weakly (fourth-order) non-linear elasticity.
description: 17 pages
Temporal synthesis of long continuous precipitation series for urban hydrological applications with a special focus on the extreme values
Creators: name: Callau Poduje, Ana Claudia
name: Haberlandt, Uwe
Publisher: name: München : European Geosciences Union
Year: 2016
Subjects: subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften
subject: Dewey Decimal Classification::500 | Naturwissenschaften::551 | Geologie, Hydrologie, Meteorologie

description: The design and operation of urban drainage systems require long and continuous rain series in a high temporal resolution. Unfortunately, available observations with such resolutions are usually short. Nevertheless a precipitation model could be used to tackle this shortcoming by generating long time series which are not constrained by the length of the observed data. Therefore it is the aim to present a stochastic point precipitation model to generate long synthetic series of rainfall in a short time increment of 5 minutes and to evaluate its capability to reproduce long term rainfall properties as well as extreme value statistics. The model is based on an alternating renewal framework. Events are characterized by variables describing durations, amounts and peak intensities. The potential of using copulas to model the join behavior of some of these variables is analyzed. A group of 24 stations located in the north of Germany are used for this purpose. Rainfall events are identified for each station and frequency analysis is performed on the different variables describing events characteristics. Properly modeling the join behavior of amount and duration of rainfall events was found to be essential for reproducing the observed properties, especially for the extreme events. Copulas are found to be an advantageous tool in terms of properly reproducing this join behavior; however caution must be taken during the selection of the proper copula. The fact of including the seasonality within the model was as well found to be crucial. The model was directly validated by generating long synthetic time series and comparing them with observed ones. Indirect evaluations were as well performed by setting up a fictional urban hydrological system to test the capability of the rainfall model regarding flooding and overflow characteristics. The proposed model has a good overall performance in terms of reproducing the seasonal behavior and main characteristics of the rainfall events including the extreme events. The model is easy to understand and to transfer to other regions.
Additional file 28 of Evidence for causal effects of polycystic ovary syndrome on oxidative stress: a two-sample mendelian randomisation study
Creators: name: Yifu, Pu
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Supplementary Material 28
title: Analytical determination of the stiffness coefficient of a twisted waveguide in electroacoustic sputter deposition
Creators: name: Borodulin, I.D.
name: Kudryashev, S.B.
name: Magomedov, G.Sh.
name: Naumenko, V.A.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The article is devoted to the problem of analytical determination of stiffness coefficients of twisted waveguides under electroacoustic sputter deposition. Based on the obtained dependences, it became possible to obtain amplitude-frequency characteristics of waveguides, which became the final stage in the theory of the transformation of ultrasonic vibrations.
title: Bending the thermally-reinforced sheet in the production of pipes
Creators: name: Maksimov, A.B.
name: Sushkov, O.D.
name: Erokhina, I.S.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The paper deals with the influence of the technological operation of sheet bending in the manufacture of pipes. Due to the fact that when bending one side is stretched and the other is compressed, the sheet material for the manufacture of pipes must be on the one hand plastic, and on the other – durable. The stronger side of the bent sheet should be the inner surface of the pipe.
Constraining the atmosphere of GJ 1214b using an optimal estimation technique
Creators: name: Barstow, Joanna K.
name: Aigrain, Suzanne
name: Irwin, Patrick G. J.
name: Fletcher, Leigh N.
name: Lee, Jae-Min
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We explore cloudy, extended H2-He atmosphere scenarios for the warm super-Earth GJ 1214b using an optimal estimation retrieval technique. This planet, orbiting an M4.5 star only 13 pc from the Earth, is of particular interest because it lies between the Earth and Neptune in size and may be a member of a new class of planet that is neither terrestrial nor gas giant. Its relatively flat transmission spectrum has so far made atmospheric characterisation difficult. The NEMESIS algorithm (Irwin et al. 2008) is used to explore the degenerate model parameter space for a cloudy, H2-He-dominated atmosphere scenario. Optimal estimation is a data-led approach that allows solutions beyond the range permitted by ab initio equilibrium model atmosphere calculations, and as such prevents restriction from prior expectations. We show that optimal estimation retrieval is a powerful tool for this kind of study, and present an exploration of the degenerate atmospheric scenarios for GJ 1214b. Whilst we find a family of solutions that provide a very good fit to the data, the quality and coverage of these data are insufficient for us to more precisely determine the abundances of cloud and trace gases given an H2-He atmosphere, and we also cannot rule out the possibility of a high molecular weight atmosphere. Future ground- and space-based observations will provide the opportunity to confirm or rule out an extended H2-He atmosphere, but more precise constraints will be limited by intrinsic degeneracies in the retrieval problem, such as variations in cloud top pressure and temperature.
description: 15 pages, 13 figures, 10 tables. Accepted for publication in MNRAS
The impact of regional meteorological network data on AOD1B products
Creators: name: Yan, Yihao
name: Shabanloui, Akbar
name: Flury, Jakob
name: Zhong, Ming
name: Xu, Houze
Publisher: name: Leibniz Universität Hannover
Year: 2018
Subjects: subject: GRACE de-aliasing products
subject: regional meteorological network
subject: AOD1B products
subject: GRACE de-aliasing Produkte
subject: regionale meteorlogische Netzwerk
subject: AOD1B Produkte
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie, Kartographie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::551 | Geologie, Hydrologie, Meteorologie

description: The AOD1B products show the short-term variations of gravity field and are removed from satellite observations in the post-processing step known as de-aliasing. The meteorological networks play an important role in the calculation of AOD1B products. In this work, the first step is to analysis the differences between standard Numerical Weather Prediction (NWP) models, e.g. European ECMWF model (ERA-40, ERA-Interim and operational) and US NCEP model. In the second step, we assess the effect of Chinese regional meteorological network data on the global NWP models. The Chinese regional meteorological network consists of 2170 stations, and the correctness of the dataset is verified by quality control on the ground. Finally, we assess the effect of regional meteorological network on AOD1B products by evaluating GRACE KBRR residuals.
title: Influence of nanoparticles on the tensile strength of SP80 sintered steel powders
Creators: name: Eremeeva, J.V.
name: Nguen, Nyy Dam
name: Skorikov, R.A.
name: Konovalova, A.I.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The influence of "Taunit"-grade nanofibers, fullerenes, nanopowders of alumina and silicon nitride on the structure formation during the sintering of steel powder and properties of sintered specimens. The introduction of nanoscale alloying additives activates the sintering considerably and provides a more homogeneous structure and higher mechanical properties as compared to the steels containing synthetic low-ash graphite.
Additional file 29 of Evidence for causal effects of polycystic ovary syndrome on oxidative stress: a two-sample mendelian randomisation study
Creators: name: Yifu, Pu
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Supplementary Material 29
The gravity field in force standard machines
Creators: name: Schilling, Manuel
name: Timmen, Ludger
name: Kumme, Rolf
Publisher: name: Helsinki : IMEKO
Year: 2017
Subjects: subject: Force Standard Machines
subject: Metrology
subject: Gravimetry
subject: Kraftmaschine
subject: Metrologie
subject: Gravimetrie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: The gravity acceleration g plays an important role in several physical quantities as provided by National Metrology Institutes. The unit of force is realized in dependence on g in force standard machines (FSM). We present the results of the combination of forward modeling and gravimetric observations to determine the absolute value of g inside the new 200 kN FSM of the Physikalisch-Technische Bundesanstalt (PTB). A model of the machine itself and gravimetric measurements, performed prior and after the installation of the FSM, are compared. The agreement is within 10 nm/s^-2. The final uncertainty concerning g is 1.2x10^−7 due to temporal variations typically neglected in force measurements.
title: Investigation of the defect subsystem evolution of dispersion-strengthened materials
Creators: name: Komar, E.V.
name: Kolupaeva, S.N.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The paper presents the results of a qualitative study for the mathematical model of plastic deformation of heterophase alloys with incoherent particles. Phase portraits of the defective subsystem are constructed.
Reduced Massive Gravity with Two Stückelberg Fields
Creators: name: Alberte, Lasma
name: Khmelnitsky, Andrei
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the non-linear massive gravity as a theory of a number of Stückelberg scalar fields minimally coupled to the Einstein-Hilbert gravity and argue that the counting of degrees of freedom can be done for scalar theory and gravity separately. In this paper we investigate the system with only two Stückelberg scalar fields. In this case we find the analytic expression for the determinant of the kinetic matrix of the scalar field Lagrangian and perform the full constraint analysis. In 1+1 space-time dimensions the theory corresponds to the full non-linear massive gravity, and this determinant vanishes identically. In this case we find two first-class constraints, and present the corresponding gauge symmetry of the theory which eliminates both scalar degrees of freedom. In 3+1 dimensions the determinant of the kinetic matrix does not vanish identically and, for generic initial conditions, both scalar fields are propagating.
description: 21 pages, 1 figure
Additional file 30 of Evidence for causal effects of polycystic ovary syndrome on oxidative stress: a two-sample mendelian randomisation study
Creators: name: Yifu, Pu
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Supplementary Material 30
Tricritical Point in Quantum Phase Transitions of the Coleman-Weinberg Model at Higgs Mass
Creators: name: Fiolhais, Miguel C. N.
name: Kleinert, Hagen
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The tricritical point, which separates first and second order phase transitions in three-dimensional superconductors, is studied in the four-dimensional Coleman-Weinberg model, and the similarities as well as the differences with respect to the three-dimensional result are exhibited. The position of the tricritical point in the Coleman-Weinberg model is derived and found to be in agreement with the Thomas-Fermi approximation in the three-dimensional Ginzburg-Landau theory. From this we deduce a special role of the tricritical point for the Standard Model Higgs sector in the scope of the latest experimental results, which suggests the unexpected relevance of tricritical behavior in the electroweak interactions.
description: 5 pages, 1 figure, published in Phys. Lett. A
title: The influence of defects base metal operation of technological equipment
Creators: name: Valeev, S.I.
name: Kharlamov, I.E.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The article deals with the problem of operation of the processing equipment subject to influence of a crack-like defect of type stratification is carried out. The specificity of the possible safe operation of equipment with defects such as delamination is considered.
α-clustering effects in dissipative 12C+12C reactions at 95 MeV
Creators: name: Baiocco, G.
name: Morelli, L.
name: Gulminelli, F.
name: D'Agostino, M.
name: Bruno, M.
name: Abbondanno, U.
name: Barlini, S.
name: Bini, M.
name: Carboni, S.
name: Casini, G.
name: Cinausero, M.
name: Gramegna, M. Degerlier F.
name: Kravchuk, V. L.
name: Marchi, T.
name: Olmi, A.
name: Pasquali, G.
name: Piantelli, S.
name: Raduta, Ad. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Dissipative 12C+12C reactions at 95 MeV are fully detected in charge with the GARFIELD and RCo apparatuses at LNL. A comparison to a dedicated Hauser-Feshbach calculation allows to select events which correspond, to a large extent, to the statistical evaporation of highly excited 24Mg, as well as to extract information on the isotopic distribution of the evaporation residues in coincidence with their complete evaporation chain. Residual deviations from a statistical behaviour are observed in αyields and attributed to the persistence of cluster correlations well above the 24Mg threshold for 6 α's decay.
description: 5 pages, 5 figures
Thompson field theory
Creators: name: Stiegemann, Deniz Ekrem
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2019
Subjects: subject: Thompson's groups
subject: field theory
subject: holographic principle
subject: Thompson-Gruppen
subject: Feldtheorie
subject: holografisches Prinzip
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We introduce Thompson field theory, a class of toy models of conformal field theory in which Thompson's group T takes the role of a discrete analogue of the chiral conformal group. T and the related group F are discrete transformations of dyadic partitions of the circle and the unit interval, respectively. When vectors or tensors are associated with partitions, one can construct a direct limit Hilbert space, here called the semicontinuous limit, and F and T have unitary representations on this space. We give an abstract description of these representations following the work of Jones. We also show that T can be thought of as acting on the boundary of an equal-time Poincaré disk in AdS3. This defines a representation of T on the Hilbert space that contains all tree-like holographic states, as introduced by Pastawski, Yoshida, Harlow, and Preskill. It also establishes a bulk-boundary correspondence through Imbert's isomorphism between T and Penner's Ptolemy group. We further propose definitions of field operators and correlation functions for the discrete theory. Finally, we sketch new developments like particle creation and annihilation, as well as black holes and possible connections with topological quantum field theory.