Show filters Hide filters

Refine your search

Publication Year
Image Motifs found in the video
1-20 out of 20 results
Change view
  • Sort by:
40:47 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Key Note Lecture: Why is the desert not flat? The interesting physics of windblown sand.

Windblown sand creates a distinct hierarchy of mobile landforms on Earth on some celestial bodies, ranging from tapestries of meticulously carved ripples to vast fields of shifting dunes. They are often perceived as aesthetically appealing, yet economically and ecologically threatening. But how do they form, and what determines their characteristic shapes, sizes, and migration dynamics? I will sketch three crucial physical mechanisms that govern this whole phenomenology: spontaneous turbulent symmetry breaking, broken scale invariance due to an emergent mesoscale, and aeolian sand sorting. Together they give rise to the notion of a forbidden wavelength gap between ripples and dunes and explain why it can (only) be inhabited by a peculiar bedform known as megaripples, which might actually be better characterized as mini-dunes. K. Kroy, G. Sauermann, H. J. Herrmann, Minimal model for sand dunes, Physical Review Letters 88 (2002) 054301. M. Lämmel, K. Kroy, Analytical mesoscale modeling of aeolian sand transport, Physical Review E 96 (2017) 052906. M. Lämmel, A. Meiwald, H. Yizhaq, H. Tsoar, I. Katra, and K. Kroy, Aeolian sand sorting and megaripple formation, Nature Physics, to appear.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
25:33 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Discretization of generalized Coriolis and friction terms on the deformed hexagonal C-grid

The talk discusses the generalized Coriolis and friction terms from two perspectives: (i) within the linearized discretized momentum equations on an equilateral grid, and (ii) as nonlinear terms on a distorted mesh. The discrete linearized momentum equations are formulated using a trivariate coordinate system. The tendencies of the different forcing terms for each wind component must be linear dependent. This constraint determines unique discretizations for each term. The linearized vorticity flux term around a zonal mean current requires only the four rhombus PVs next to an edge. The vector Laplacian must be formulated with the vorticity on vertices defined as the average of three rhombus vorticities. A modified generalized Coriolis term is defined on the deformed mesh. The baroclinic wave test on the sphere does not reveal any sign of a non-linear Hollingsworth instability, even though it is demonstrated that the Lamb form and the advective form of momentum advection are not equivalent. Physical constraints determine the shape of the stress tensor. These are invariance to the addition of solid body rotation and a resulting positive definite dissipation rate. An appropriate stress tensor formulation does not deliver a Laplacian momentum diffusion in the linear case. On the deformed mesh, parts of this stress tensor are obtained by a least squares reconstruction of wind gradients. This approach avoids spurious deformations diagnosed for constant flow in the vicinity of pentagon cells. It is impossible for both terms to meet all physical requirements and the additional numerical linear dependency constraint. The topic is of general interest, because the linear dependency of overspecified dynamics may play a role also in other modeling fields.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
21:32 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Modelling turbulent fluid-, thermo-, and droplet dynamics in the Leipzig Aerosol Cloud Interaction Simulator (LACIS-T)

The turbulent Leipzig Aerosol Cloud Interaction Simulator (LACIS-T) is a Göttingen-type moist-air wind tunnel designed for investigating interactions between turbulence and cloud microphysics under reproducible and well defined thermo- and fluid dynamic conditions. To draw reliable conclusions from measurements at the wind tunnel it is necessary to have precise knowledge about the flow field and turbulent fluctuations of velocity, temperature, and water vapour concentration. For this reason, the flow inside the measurement section of LACIS-T is simulated with OpenFOAM, employing a Large Eddy Simulation model for turbulence. Different boundary conditions for water vapour concentration and temperature are considered and the results are compared to measurements. Furthermore, particles are tracked through the domain using a Lagrangian approach. Thereto, a suitable growth model is implemented to calculate particle/droplet growth due to the condensation of water vapour from the gas phase. Joint work with D. Niedermeier, J. Voigtländer, and F. Stratmann.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
22:04 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Numerical simulation of large atmospheric multiphase mechanisms and detailed combustion kinetics

A simulation tool for the numerical solution of large kinetic systems with special emphasis on examples from atmospheric chemistry and combustion is presented. The chemical mechanism has to be provided in readable ASCII format, whereas the program is able to read the TROPOS syntax for chemical systems and also the widely used ChemKin format. From this, a system of ordinary differential equations is generated internally and solved numerically by Rosenbrock-type methods. Efficiency is obtained by carefully exploiting the sparsity structures of the Jacobian. Additionally, another approach is implemented, where the direct evaluation of the Jacobian is no longer required. The effects of both strategies are investigated by simulating detailed atmospheric multiphase mechanisms and gas-phase combustion mechanisms.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
30:13 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

High resolution Magnetic Resonance Imaging experiments - lessons in nonlinear statistical modeling

Recent advances in neuro-imaging attempt to enable in-vivo histology of the brain. Doing so requires increased spatial resolution up to a situation where the signal meets the noise floor. The talk will cover research conducted at WIAS, in collaboration with MR physicists, on statistical issues in modeling imaging data characterized by low signal-to-noise ratio (SNR). I'll cover several specific, but interrelated problems: - characterization of the signal distribution in MR experiments, - effects of preprocessing on the signal distribution, - estimation of the noise profile in MR images, - use of spatial information for variance reduction in (collections of) MR images, - bias due to incorrect modeling in MR experiments. I'll consider two specific imaging experiments to illustrate problems, characterize effects that are due to high measurment noise and provide solutions for: - diffusion weighted MR, with an analysis based on data of the Human Connectome Project, - multi-parameter mapping, using data measured at the Wellcome Trust Center for Neuroimaging, London. Literature: S. Becker, K. Tabelow, S. Mohammadi, N. Weiskopf and J. Polzehl, Adaptive smoothing of multi-shell diffusion-weighted MR data by msPOAS, NeuroImage, 95 (2014) pp. 90--105. K. Tabelow, H.U. Voss and J. Polzehl, Local estimation of the noise level in MRI using structural adaptation, Medical Image Analysis, 20 (2015) pp. 76--86. J. Polzehl and K. Tabelow, Low SNR in dMRI models, JASA, 11 (2016) pp. 1480--1490. K. Tabelow, Ch. D'Alonzo, L. Ruthotto, M. F. Callaghan, N. Weiskopf, J. Polzehl and S. Mohammadi, Removing the estimation bias due to the noise floor in multi-parameter maps, ISMRM annual meeting 2017.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
24:01 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Handling research software: recommendations to users, developers and research managers.

A working group initiated by a joint initiative of German research and funding organizations developed a "helping hand" paper providing recommendations on important aspects of research software developmement and maintenance [1]. It is addressed to the different stakeholders in the hierarchy of an research organization. The talk will introduce the main points of this document. Based on the personal experience of the speaker a number of steps necessary to introduce these guidelines into the everyday practice of a research institution will be discussed. [1] Katerbow, Matthias / Feulner, Georg (2018): Handreichung zum Umgang mit Forschungssoftware. Herausgegeben von der AG Forschungssoftware im Rahmen der Schwerpunktinitiative Digitale Information der Allianz der deutschen Wissenschaftsorganisationen. Unter Mitarbeit von Mathias Bornschein, Björn Brembs, Michael Erben-Russ, Konrad Förstner, Michael Franke, Bernadette Fritzsch, Jürgen Fuhrmann, Michael Goedicke, Stephan Janosch, Uwe Konrad, Dennis Zielke.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
42:45 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Key Note Lecture: Managing research software development - better software, better research

In a 2014 survey of UK research-intensive universities, 92% of researchers said they used research software and 68% said their research would be impossible without software. Yet 71% have had no formal software training, and few are ready to apply many of the things we consider as best practice in research software development. The UK's Software Sustainability Institute has worked at the forefront of activity to address these issues, providing guidance and training whilst developing ways of supporting sustainable communities of practice. My talk will challenge the workshop attendees to understand how they can work with their own communities to improve the ways that software is used and developed, including infrastructure, incentives, overcoming fears and increasing adoption, and planning for change.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
28:04 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Analyzing paradigmatic language change by visual correlation

Paradigmatic language change occurs, when paradigmatically related words with similar usage rise or fall together. Such change is the rule rather than an exception. Words rarely increase or decrease in isolation but together with similar words. In the short term, this is usually due to thematic change, but in the longer term, also grammatical preferences change. We present an approach to visually explore paradigmatic change by reducing the dimensionality of and correlating the two main factors involved: Frequency change and distributional semantics of words. Frequency change is reduced to one dimension by means of fitting the logistic growth curves to the observed word frequencies in fixed intervals (e.g. year or decade). Semantics of words reduced to two dimensions such that words with similar usage contexts are positioned closely together. This is accomplished by reducing the very high dimensional representation of word usage context in two steps. Neural network based word embeddings and t-Distributed Stochastic Neighbour Embedding.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
26:48 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

On the role of the Helmholtz-Leray projector in the space discretization of the Navier-Stokes equations

Recent progress on pressure-robust mixed methods for the incompressible Navier-Stokes equations and the connection to the Helmholtz-Leray projector is presented. It is argued that and how pressure-robust methods allow to decrease the (formal) approximation order of the used discretizations. As applications, electrolytes and stagnation point flows are emphasized.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
33:36 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Model pathway diagrams for the representation of mathematical models

Mathematical modeling and simulation (MMS) has now been established as an essential part of the scientific work in many disciplines. It is common to categorize the involved numerical data and to some extent the corresponding scientific software as research data. But both have their origin in mathematical models, therefore any holistic approach to research data in MMS should cover all three aspects: data, software, and models. However, finding an appropriate representation for models is far less obvious than for numerical data and software. The current practice of representing models is a mixture of mathematical formulae and natural language in scientific publications. This (rigorous, but) informal approach creates ambiguity, potential incompleteness of the presentation, less reproducibility and often "re-invention of the wheel". We present a concept for a machine-actionable as well as human-understandable of mathematical models based on Model Pathway Diagrams (MPD). MPDs specify the physical quantities that are described in the model as well as the relations between them (laws, constitutive equations) and informal documentation about them. MPDs provide a visual tool for understanding the structural properties of models as well as algorithms for numerical simulations. For a formalized representation of mathematical models and their underlying physics, we use the OMDoc/MMT, a special machine-readable description language for mathematical documents, that allows specifying the mathematical vocabulary of models, i.e. the concepts, their properties, and relations. We illustrate our approach by application to the van Roosbroeck system describing the carrier transport in semiconductors by drift and diffusion. We introduce an approach for the block-based composition of models from simpler components.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
22:28 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Software information and the swMATH service

Scientific software is an indensible tool for the automatization and control of complex problems. But what is software? Software is a entirety of different kinds of objects which is developing dynamically and cannot be reduced to software code. Moreover, software plays a special role: Software is in the middle between models and simulations. The distributed development of software and the access to the software have led to new concepts and tools for maintaining software and software information. The swMATH service is a portal for mathematical software. It provides landing pages for each software entry. These landing pages contain general information about the software products and links to a lot of resources which describe or use the software, e.g., websites of the software, repositories, Internet archives, and publications citing a software. The integration and analysis of different resources allows a nearly complete overview about the Web information of a software. In the talk, new features and future extensions of the swMATH service are presented.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
34:11 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Key Note Lecture: Challenges of atmospheric data assimilation

The initial state for atmospheric numerical models is produced by combining available observational data with a short range model simulation using a data assimilation algorithm. This gives us an initial state from which we can run a deterministic model to produce predictions of the future. The main goal of data assimilation is to produce the best analysis (best initial condition) for the numerical model; that is, the estimate that gives the best prediction for the time scales that we are focusing on. This is a challenging problem since high-resolution numerical models of the atmosphere in use today resolve highly nonlinear dynamics and physics, making them in short runs very sensitive to proper initial and boundary conditions. In this talk, we present the mechanisms of the data assimilation algorithms.. We focus on the ensemble Kalman filter algorithm to estimate the atmospheric state as well as its necessary modifications for our application. Most of the current algorithms used in practice for combining data and previous model forecasts (prior estimates) use Gaussian error assumptions. These assumptions are not appropriate for nonlinear dynamics, since only in the case of linear dynamics will Gaussian errors remain Gaussian in time, not in case of estimating variables that need to be positive or in certain ranges as, for example, rain. Consequently, data assimilation for numerical weather prediction models that resolve many scales of motion and for observations of higher temporal/spatial density/resolution requires re-evaluating and improving the methodology that is currently inherited from less nonlinear applications. We argue that relaxing underlying assumptions of the data assimilation algorithms might be possible by improving the link between the data assimilation and the model. For example, the stronger connection can be established by constraining the analysis with imposing conservation laws and other physical constraints. Applications are illustrated on the convective scale data assimilation example.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
24:52 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Modeling and simulation of electrically driven quantum light emitters

The design of electrically driven quantum light sources based on semiconductor quantum dots, such as single-photon emitters and nanolasers, asks for modeling approaches combining classical device physics with cavity quantum electrodynamics. In particular, one has to connect the well-established fields of semi-classical semiconductor transport theory and the theory of open quantum systems. We present a first step in this direction by coupling the van Roosbroeck system with a quantum master equation in Lindblad form. The resulting hybrid quantum-classical system obeys the fundamental laws of non-equilibrium thermodynamics and provides a comprehensive description of quantum dot devices on multiple scales: It enables the calculation of quantum optical figures of merit (e.g. the second order intensity correlation function) together with the spatially resolved simulation of the current flow in realistic semiconductor device geometries in a unified way.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
26:17 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Czochralski Growth of Ge Computed by Using the Finite Element Tool Elmer

The Czochralski method is widely used for growing single crystals as e.g. silicon crystals. Typically, the thermal field and related ones such as thermal stress is computed for certain stages of the growth. Here we present the successive computations starting from inital state up to nearly the end by combining a perl script and the finite element solver Elmer. The shape of the crystal is given by input and can be taken either from experimental result or by own definition. The numerical computed interface is compared with the one observed by LPS at the crystal grown.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
20:10 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

A benchmark study for CFD solvers: simulation of air flow in livestock husbandry

In this work we present the results of a joint effort of three Leibniz Institutes (ATP, TROPOS and WIAS) leading to the validation of numerical methods and software for fluid simulations. The benchmark problem is motivated by the application in livestock husbandry, in which the understanding flow characteristics is of extreme importance in order to guarantee good quality fresh air and being environmentally sparing.In this field, CFD represents a valuable tool that enable simulation of flow patterns in different configurations. In order to assess the performance of different CFD approaches (including different solver, flow models and numerical methods) three open source models are compared: ASAM (developed at TROPOS), OpenFOAM and ParMooN (developed at WIAS). The results are compared with measurements obtained by wind tunnel experiments.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
24:55 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Non-Newtonian Fluids and the 2nd Law of Thermodynamics

This lecture addresses the peculiar behavior of Non-Newtonian fluids. Particularly the Weissenberg effect in a rotating shear flow is discussed in detail. To this end we consider models of Maxwell-type. In the literature there are three alternatives to describe the evolution of the Non-Newtonian part of the stress by Maxwell-type models. They differ by use of corotational, upper convective and lower convective time derivatives, respectively. We show that solely the classical Maxwell-type model with a corotational time derivative is admissible from a thermodynamic point of view. However, thermodynamics also permits the two other time derivatives but only within a generalized setting, where Maxwell-type models are furnished by supplementary terms. We explicitly provide these new terms and discuss its influence on the High-Weissenberg number problem.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
24:16 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Application of a dynamic turbulence parametrization in a circulation model

Preliminary results from the application of our recently developed extension of the Dynamic Smagorinsky model (DSM) are presented. The DSM serves as a parameterization for subgrid-scale momentum diffusion in a general circulation model (GCM) that allows for stable simulations even without a hyperdiffusion. Due to gravity, the horizontal and vertical scales have to be treated differently. Our extension includes a test filter for the Smagorinsky parameter that is separated from the resolution scale, and a dynamic approach for the vertical diffusion based on the ideas of stratified turbulence. The aim of our investigations is to extend our model into the MLT for a study of GW spectra with respect to the scaling ratio of stratified macro-turbulence. Therefore, we show the performance of the DSM up to the lower stratosphere and discuss the implications from the scale-invariance criterion for LES parameterizations on the approach for dynamic vertical diffusion.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
17:28 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Killed By A Thousand Paper Cuts? A Newcomer's Perspective On Possibilities And Gaps In Software Citation Workflows

Citation workflows offer the opportunity to consider a wide range of aspects between low-level technical details (like metadata structures) up to user experience design (like the number of necessary clicks/commands). This talk summarises from a newcomer's perspective, how citing software equivalently to books, articles, etc. is already possible. To explore this, we'll be venturing through the realms of TeX code, XML configs and clicky-bunti web-apps. However, existing gaps in the software citation workflow are undeniable. We want to highlight some of those gaps specifically, discuss ideas of how to patch them, and derive general tactics and strategies to improve software citation workflows.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
18:46 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Research data and mathematical modeling

Today, mathematical modeling is an important tool in scientific research. In mathematics, publications are containers for mathematical research data containing models and mathematical objects, theories, theorems, proofs, methods, algorithms, and applications. However, it is a nontrivial task to extract detailed information about models and other research data from publications. Especially, the information about mathematical models is given in different form, e.g., by names or in “natural mathematical language” (a combination of text and mathematical formulae), and is often incomplete. Moreover, different communities use different terminologies and notations for the same models. These deficits make it difficult to find and reuse existing models and lead to repeated reinventing the wheel. This results in an project idea to analyze and collect existing information about mathematical models in publications and to develop concepts for a semantic presentation of them. In the talk, the presentation of research data in mathematical publications will be analyzed and first ideas for a special model database are suggested.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
20:20 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) English 2018

Conference recordings complement scholarly research communication in traditional conference proceedings

Traditionally, research results presented at scientific conferences are published in conference proceedings. Additionally, an increasing number of conferences are recorded and the videos are subsequently published. In most cases these videos are published by the organisers on commercial platforms or directly on the conference website. Therefore, a systematic search for conference recordings is difficult. Moreover, the videos are often lost after a short time e.g. because the URL changes or external links lead to nowhere. Usually, conference websites are not maintained on a long-term basis and commercial platforms may remove videos or change the conditions for access for a variety of reasons. Finally, to ensure an unproblematic re-use of the material questions of licencing, technical quality and formats have to be solved in advance. In order to prevent the loss of conference recordings the German National Library of Science and Technology (TIB) has developed the AV-Portal. The AV-Portal provides the ideal infrastructure to host, find and reuse scientific videos. It's a single access point for videos from different conferences and years. All videos are assigned a Digital Object Identifier (DOI). These persistent identifiers allow for reliable referencing both as stable online links and as correct citations in scholarly work. In this talk we describe how sharing scientific results via audio-visual media has become an important part of scientific communication and how conference recordings may complement the classical conference proceedings and add new value to the presented research. By discussing the whole process from pre-conference organisation to publishing and archiving the recordings we show pitfalls, best practices and opportunities of recordings for both conference organisers and participants.
  • Published: 2018
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: English
out of 1 pages
Loading...
Feedback

Timings

   71 ms - page object
   59 ms - search
    4 ms - highlighting
    1 ms - highlighting/35428
    1 ms - highlighting/35351
    3 ms - highlighting/35352
    3 ms - highlighting/35427
    2 ms - highlighting/35365
    1 ms - highlighting/35361
    3 ms - highlighting/35354
    2 ms - highlighting/35362
    3 ms - highlighting/35363
    2 ms - highlighting/35355
    2 ms - highlighting/35349
    4 ms - highlighting/35350
    3 ms - highlighting/35348
    3 ms - highlighting/35364
    3 ms - highlighting/35359
    3 ms - highlighting/35353
    3 ms - highlighting/35356
    4 ms - highlighting/35357
    3 ms - highlighting/35358
    3 ms - highlighting/35360

Version

AV-Portal 3.7.0 (943df4b4639bec127ddc6b93adb0c7d8d995f77c)