cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Rare case of fatal ventriculitis in a term neonate following myelomeningocele repair
Creators: name: Sanchez, Thomas
Publisher: name: EURORAD
Year: 2016
Subjects: subject: Head and neck
subject: Neuroradiology brain
subject: Paediatric
subject: CT
subject: Ultrasound
subject: Contrast agent-intravenous
subject: Diagnostic procedure
subject: Infection
subject: Ischaemia / Infarction

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: male, 2 weeks
description: Clinical History: 2 week old infant with repaired sacral myelomeningocele presented to the Emergency Department in septic shock. Head ultrasound showed new hydrocephalus. A ventricular drain was placed which drained purulent secretions. CSF and blood cultures were positive... Final Diagnosis: Ventriculitis and septic shock progressing to end organ failure and brain death
Risk optimization of trusses using a new gradient estimation method
Creators: name: Gomes, Wellison J. S.
Publisher: name: The University of British Columbia
Year: 2015

description: When dealing with structural risk optimization by means of Monte Carlo simulation methods, the total expected cost usually becomes a noisy function and it is not possible to directly calculate its derivatives. In fact, even the estimation of these derivatives becomes a challenging task. On the other hand, gradient-based optimization methods are among the most efficient ones for this kind of problem, but they require derivatives. In this paper, a new method, which allows estimating gradients of the total expected cost with respect to design variables, is used to perform risk optimization of trusses by a gradient-based optimization method. The proposed methodology is employed in the solution of a bi-dimensional and a spatial truss. The results show that this methodology presents a significantly smaller computational cost when compared to a similar procedure using finite differences and indicates that the quality of the gradients is slightly better as well.
Supplementary document for Ultrafast line-illumination Raman microscopy with multislit detection - 6224906.pdf
Creators: name: Mochizuki, Kentaro
name: Kumamoto, Yasuaki
name: Maeda, Shunsuke
name: Tanuma, Masato
name: Kasai, Atsushi
name: takemura, masashi
name: Harada, Yoshinori
name: Hashimoto, Hitoshi
name: Tanaka, Hideo
name: Smith, Nicholas
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplement 1
Supp 2: Constraints on the growth and evolution of continental crust in the Northeast Cathaysia Block: insights from detrital zircon U–Pb age and Hf–O isotope analysis in Tingjiang sediment
Creators: name: Wang, Liyuan
name: Hong, Qiu Chen
name: Zhang, Wenhui
name: Xu, Jing
name: Zerizghi, Teklit
Publisher: name: Geological Society of London
Year: 2024
Subjects: classificationCode: 3705
subject: Geology
subject: FOS: Earth and related environmental sciences

description: Supplementary Table A2.
Tyutorlik faoliyatining talabalar bilan munosabatda, psixologik bilimlarning o'rni
Creators: name: Olimova Firuza Aslonovna
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada tyutorlik faoliyatining zamonaviy ta’lim jarayonidagi roli hamda talabalar bilan samarali munosabatlar o‘rnatishda psixologik bilimlarning ahamiyati yoritilgan. Tyutorning shaxsiy yondashuvi, motivatsiyani shakllantirish, stress va muammolarni bartaraf etish, samarali muloqot olib borish kabi vazifalarda psixologik yondashuvlardan foydalanish holatlari tahlil qilingan. Maqolada shuningdek, talabaning individualligini hisobga olish va unga mos psixologik strategiyalarni tanlash orqali ta’lim samaradorligini oshirish yo‘llari ko‘rsatib o‘tilgan. Psixologik kompetensiyalar tyutorlik faoliyatining ajralmas qismi sifatida qaralib, bu boradagi ilmiy-amaliy tavsiyalar bayon etilgan
Importance sampling in the evaluation and optimization of buffered failure probability
Creators: name: Harajli, Marwan M.
name: Rockafellar, R. Tyrrell
name: Royset, Johannes O.
Publisher: name: The University of British Columbia
Year: 2015

description: Engineering design is a process in which a system’s parameters are selected such that the system meets certain criteria. These criteria vary in nature and may involve such matters as structural strength, implementation cost, architectural considerations, etc. When random variables are part of a system model, an added criterion is usually the failure probability. In this paper, we examine the buffered failure probability as an attractive alternative to the failure probability in design optimization problems. The buffered failure probability is more conservative and possesses properties that make it more convenient to compute and optimize. Since a failure event usually occurs with small probability in structural systems, Monte-Carlo sampling methods require large sample sizes for high accuracy estimates of failure and buffered failure probabilities. We examine importance sampling techniques for efficient evaluation of buffered failure probabilities, and illustrate their use in structural design of two multi-story frames subject to ground motion. We formulate a problem of design optimization as a cost minimization problem subject to buffered failure probability constraints. The problem is solved using importance sampling and a nonlinear optimization algorithm.
Supp 1: Constraints on the growth and evolution of continental crust in the Northeast Cathaysia Block: insights from detrital zircon U–Pb age and Hf–O isotope analysis in Tingjiang sediment
Creators: name: Wang, Liyuan
name: Hong, Qiu Chen
name: Zhang, Wenhui
name: Xu, Jing
name: Zerizghi, Teklit
Publisher: name: Geological Society of London
Year: 2024
Subjects: classificationCode: 3705
subject: Geology
subject: FOS: Earth and related environmental sciences

description: Supplementary Table A1.
title: Constitutive models for subsoil in the context of structural analysis in construction engineering
Creators: name: Knabe, Tina
Publisher: name: Bauhaus-Universität Weimar
Year: 2010
Subjects: subject: Angewandte Informatik
subject: Angewandte Mathematik
subject: Architektur
subject: Computerunterstütztes Verfahren
subject: 000
subject: 510

description: Parameters of constitutive models are obtained generally comparing the results of forward numerical simulations to measurement data. Mostly the parameter values are varied by trial-and-error in order to reach an improved fit and obtain plausible results. However, the description of complex soil behavior requires advanced constitutive models where the rising complexity of these models mainly increases the number of unknown constitutive parameters. Thus an efficient identification "by hand" becomes quite difficult for most practical geotechnical problems. The main focus of this article is on finding a vector of parameters in a given search space which minimizes discrepancy between measurements and the associated numerical result. Classically, the parameter values are estimated from laboratory tests on small samples (triaxial tests or oedometer tests). For this purpose an automatic population-based approach is present to determine the material parameters for reconstituted and natural Bothkennar Clay. After the identification a statistical assessment is carried out of numerical results to evaluate different constitutive models. On the other side a geotechnical problem, stone columns under an embankment, is treated in a well instrumented field trial in Klagenfurt, Austria. For the identification purpose there are measurements from multilevel-piezometers, multilevel-extensometers and horizontal inclinometer. Based on the simulation of the stone columns in a FE-Model the identification of the constitutive parameters is similar to the experimental tests by minimizing the absolute error between measurement and numerical curves.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07.2009, Bauhaus-Universität Weimar, vol. 18, 2009
Seismic intensity measures for probabilistic demand modeling of rocking rigid components
Creators: name: Hur, Jieun
name: Shafieezadeh, Abdollah
Publisher: name: The University of British Columbia
Year: 2015

description: Nonstructural components such as electrical equipment have critical roles in the proper functionality of various infrastructure systems. Some of these devices in certain facilities should operate even under strong seismic shakings. However, it is challenging to define each mechanical and operational failure and determine system failure probabilities under seismic shakings due to the uncertainties in earthquake excitations and the diversity of electrical equipment, among other factors. Therefore, it is necessary to develop effective and practical probabilistic models for performance assessment of electrical equipment considering variations in equipment features and earthquakes. This study will enhance the understanding of the rocking behavior of nonstructural equipment and linear to nonlinear behavior of restrainers. In addition, the present study will generate probabilistic seismic demand models of rigid equipment for a set of conventional and novel intensity measures.
title: On the Klein-Gordon equation on the 3-torus
Creators: name: Constales, Denis
name: Kraußhar, Rolf Sören
Publisher: name: Bauhaus-Universität Weimar
Year: 2010
Subjects: subject: Angewandte Informatik
subject: Angewandte Mathematik
subject: Architektur
subject: Computerunterstütztes Verfahren
subject: 000
subject: 510

description: In this paper we consider the time independent Klein-Gordon equation on some conformally flat 3-tori with given boundary data. We set up an explicit formula for the fundamental solution. We show that we can represent any solution to the homogeneous Klein-Gordon equation on the torus as finite sum over generalized 3-fold periodic elliptic functions that are in the kernel of the Klein-Gordon operator. Furthermore we prove Cauchy and Green type integral formulas and set up a Teodorescu and Cauchy transform for the toroidal Klein-Gordon operator. These in turn are used to set up explicit formulas for the solution to the inhomogeneous version of the Klein-Gordon equation on the 3-torus.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07.2009, Bauhaus-Universität Weimar, vol. 18, 2009
title: Multiscale analysis of multivariate data
Creators: name: Kunoth, Angela
Publisher: name: Bauhaus-Universität Weimar
Year: 2010
Subjects: subject: Angewandte Informatik
subject: Angewandte Mathematik
subject: Architektur
subject: Computerunterstütztes Verfahren
subject: 000
subject: 510

description: For many applications, nonuniformly distributed functional data is given which lead to large–scale scattered data problems. We wish to represent the data in terms of a sparse representation with a minimal amount of degrees of freedom. For this, an adaptive scheme which operates in a coarse-to-fine fashion using a multiscale basis is proposed. Specifically, we investigate hierarchical bases using B-splines and spline-(pre)wavelets. At each stage a leastsquares approximation of the data is computed. We take into account different requests arising in large-scale scattered data fitting: we discuss the fast iterative solution of the least square systems, regularization of the data, and the treatment of outliers. A particular application concerns the approximate continuation of harmonic functions, an issue arising in geodesy.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07.2009, Bauhaus-Universität Weimar, vol. 18, 2009
Stability challenges and prospects for the industrial application of non‐noble catalysts for selective catalytic reduction of NOx by CO (CO‐SCR)
Creators: name: Li, Shuhao
name: Wang, Feng
name: Ng, Derrick
name: Shen, Boxiong
name: Xie, Zongli
Publisher: name: Swinburne
Year: 2024

description: The selective catalytic reduction of NOx by CO (CO-SCR) holds considerable promise as a simple and cost-effective technology capable of concurrently removing CO and NOx from mobile and stationary sources. This is especially pertinent for industry sectors with high CO emissions, such as the iron and steel industry, making CO-SCR an attractive solution with significant industrial applicability. However, despite the promising industrial potential of CO-SCR technology, its widespread adoption is hindered by several factors, most notably the impacts of SO2, H2O, and O2 on catalyst performance and stability. Current research on these limiting factors is not exhaustive, posing challenges for the comprehensive industrial implementation of CO-SCR technology. Therefore, this review paper focuses on the variables impeding the industrial utilization of CO-SCR, summarizing existing bottlenecks and emphasizing the urgent need to address the inhibitory effects of O2 on the CO-SCR reaction, a critical issue in contemporary research. This review aims to clearly articulate the key challenges of CO-SCR technology and provide direction for future research.
title: Hydro-mechanical coupled field system identification - application to water reservoirs
Creators: name: Lahmer, Tom
Publisher: name: Bauhaus-Universität Weimar
Year: 2010
Subjects: subject: Angewandte Informatik
subject: Angewandte Mathematik
subject: Architektur
subject: Computerunterstütztes Verfahren
subject: 000
subject: 510

description: In this paper we present an inverse method which is capable of identifying system components in a hydro-mechanically coupled system, i.e. for fluid flow in porous media. As an example we regard water dams that were constructed more than hundred years ago but which are still in use. Over the time ageing processes have changed the condition of these dams. Within the dams fissures might have grown. The proposed method is designed to locate these fissures out of combined mechanical and hydraulic measurements. In a numerical example the fissures or damaged zones are described by a smeared crack model. The task is now to identify simultaneously the spatial distribution of Young’s modulus and the hydraulic permeability due to the fact, that in regions where damages are present, the mechanical stiffness of the system is reduced and the permeability increased. The inversion is shown to be an ill-posed problem. As a consequence regularizing methods have to be applied, where the nonlinear Landweber method (a gradient type method combined with a discrepancy principle) has proven to be an efficient choice.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07.2009, Bauhaus-Universität Weimar, vol. 18, 2009
title: The Howe duality for Hodge systems
Creators: name: Lavicka, Roman
name: Delanghe, Richard
name: Soucek, Vladimir
Publisher: name: Bauhaus-Universität Weimar
Year: 2010
Subjects: subject: Angewandte Informatik
subject: Angewandte Mathematik
subject: Architektur
subject: Computerunterstütztes Verfahren
subject: 000
subject: 510

description: In this note, we describe quite explicitly the Howe duality for Hodge systems and connect it with the well-known facts of harmonic analysis and Clifford analysis. In Section 2, we recall briefly the Fisher decomposition and the Howe duality for harmonic analysis. In Section 3, the well-known fact that Clifford analysis is a real refinement of harmonic analysis is illustrated by the Fisher decomposition and the Howe duality for the space of spinor-valued polynomials in the Euclidean space under the so-called L-action. On the other hand, for Clifford algebra valued polynomials, we can consider another action, called in Clifford analysis the H-action. In the last section, we recall the Fisher decomposition for the H-action obtained recently. As in Clifford analysis the prominent role plays the Dirac equation in this case the basic set of equations is formed by the Hodge system. Moreover, analysis of Hodge systems can be viewed even as a refinement of Clifford analysis. In this note, we describe the Howe duality for the H-action. In particular, in Proposition 1, we recognize the Howe dual partner of the orthogonal group O(m) in this case as the Lie superalgebra sl(2 1). Furthermore, Theorem 2 gives the corresponding multiplicity free decomposition with an explicit description of irreducible pieces.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07.2009, Bauhaus-Universität Weimar, vol. 18, 2009
Cactus as a Medicinal Plant: A Review
Creators: name: Gunjal PR*
name: Gunjal AP
name: Mhaismale KS
name: Lohare PS
name: Phalke PL
Publisher: name: Zenodo
Year: 2024

description: Abstract

The Cactus is one of the most widely distributed plants in the xeric environment and has special characteristics. The major species of cacti used for livestock include opuntia ficus-indica Mill. opuntia lindheimeri Engelm, opuntia ellisiana, opuntia engelmannii Salm Dyck, opuntia chrysacantha Berg, opuntia amyclae, opuntia rastrera Weber, opuntia stricta Haw, and Nopalea cochenillifera Salm Dyck. Cactus species are plants that grow in the arid and semiarid regions of the world. Certain opuntia species are found in the wild, and while the fruit of these species is unfit for human consumption, the plants can serve as animal fodder. Its composition includes essential nutrients including taurine and betalains, as well as minerals, vitamins, and antioxidants. As a result, the food and nutraceutical industries can make great and diverse value-added products from it.

Keywords: Cactus, Opuntia, Cactus pear, Cactaceae, Antioxidant, Physico-chemical Composition, Pharmacological Properties.
title: Multi-site construction project scheduling considering resource moving time in developing countries
Creators: name: Le, Hanh Quang
name: Rüppel, Uwe
Publisher: name: Bauhaus-Universität Weimar
Year: 2010
Subjects: subject: Angewandte Informatik
subject: Angewandte Mathematik
subject: Architektur
subject: Computerunterstütztes Verfahren
subject: 000
subject: 510

description: Under the booming construction demands in developing countries, particularly in Vietnam situation, construction contractors often perform multiple concurrent projects in different places. In construction project scheduling processes, the existing scheduling methods often assume the resource moving time between activities/projects to be negligible. When multiple projects are deployed in different places and far from each other, this assumption has many shortcomings for properly modelling the real-world constraints. Especially, with respect to developing countries such as the Vietnam which contains transportation systems that are still in backward and low technical standards. This paper proposes a new algorithm named Multi-Site Construction Project Scheduling - MCOPS. The objective of this algorithm is to solve the problem of minimising multi-site construction project duration under limited available conditions of renewable resources (labour, machines and equipment) combining with the moving time of required resource among activities/projects. Additionally, in order to mitigate the impact of resource moving time into the multi-site project duration, this paper proposed a new priority rule: Minimum Resource Moving Time (MinRMT). The MinRMT is applied to rank the finished activities according to a priority order, to support the released resources to the scheduling activities. In order to investigate the impact of the resource moving time among activities during the scheduling process, computational experimentation was implemented. The results of the MCOPS-based computational experiments showed that, the resource moving time among projects has significantly impacted the multi-site project durations and this amount of time can not be ignored in the multi-site project scheduling process. Besides, the efficient application of the MinRMT is also demonstrated through the achieved results of the computational experiment in this paper. Though the efforts in this paper are based on the Vietnamese construction conditions, the proposed method can be usefully applied in other developing countries which have similar construction conditions.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07.2009, Bauhaus-Universität Weimar, vol. 18, 2009
title: Modeling techniques for RC-frame systems with infills
Creators: name: Leipold, Mathias
name: Schwarz, Jochen
Publisher: name: Bauhaus-Universität Weimar
Year: 2010
Subjects: subject: Angewandte Informatik
subject: Angewandte Mathematik
subject: Architektur
subject: Computerunterstütztes Verfahren
subject: 000
subject: 510

description: There are many different approaches to simulate the mechanical behavior of RC−Frames with masonry infills. In this paper, selected modeling techniques for masonry infills and reinforced concrete frame members will be discussed − stressing the attention on the damaging effects of the individual members and the entire system under quasi−static horizontal loading. The effect of the infill walls on the surrounding frame members is studied using equivalent strut elements. The implemented model consider in−plane failure modes for the infills, such as bed joint sliding and corner crushing. These frame member models differ with respect to their stress state. Finally, examples are provided and compared with experimental data from a real size test executed on a three story RC−Frame with and without infills. The quality of the model is evaluated on the basis of load−displacement relationships as well as damage progression.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07.2009, Bauhaus-Universität Weimar, vol. 18, 2009
Sparse Bayesian learning with Gibbs sampling for structural health monitoring with noisy incomplete modal data
Creators: name: Huang, Yong
name: Beck, James L.
Publisher: name: The University of British Columbia
Year: 2015

description: Most hidden damage that occurs in civil structures is in localized areas. In this paper, this information is exploited in a sparse Bayesian learning framework for inferring localized stiffness reductions as a proxy for structural damage that uses noisy incomplete modal data from before and after possible damage. The methodology proposes a new sparse Bayesian model that induces spatial sparseness in representations of the inferred stiffness reductions. To obtain not only the most plausible model of sparse stiffness reductions within a specified class of models, but also a quantification of its uncertainty, the method uses Gibbs sampling to generate samples from the posterior distribution for the structural stiffness parameters, system modal parameters and eigenequation-error precision parameter. The approach has five important benefits: (1) no matching of model and experimental modes is needed; (2) solving the eigenvalue problem of a structural model is not required; (3) all the uncertain parameters are sampled or estimated conditional on the modal data, and, therefore, no user-intervention is required; (4) the effective dimension for the Gibbs sampling only depends on the small number of parameter groups that are used for constructing the conditional PDFs for drawing samples; and (5) the inferred stiffness reductions are spatially sparse in a way that is consistent with a Bayesian Ockham's razor. A three-dimensional braced-frame model from the Phase II benchmark problem sponsored by the IASEASCE Task Group on Structural Health Monitoring is analyzed using the proposed method. The results show that the proposed approach reduces the occurrence of false and missed damage detections in the presence of modeling errors.
Analysis of the risk of transport infrastructure disruption from extreme rainfall
Creators: name: Pregnolato, Maria
name: Ford, Alistair
name: Dawson, Richard
Publisher: name: The University of British Columbia
Year: 2015

description: Transport infrastructure networks are increasingly vulnerable to disruption from extreme rainfall events due to increasing surface water runoff from urbanization and changes in climate. The impacts of such disruptions typically extend far beyond the original disaster footprint, because of the increased interconnection and spatial extent of modern infrastructure systems. This paper presents an integrated assessment methodology to quantify the flooding risks from extreme rainfall, measured in terms of expected travel time across the road network. The method is driven by a probabilistic rainfall weather generator that can simulate time series of current and future rainfall. This is integrated with a high resolution urban flood model, CityCAT, to provide information on depth and velocity of floodwater. This hazard layer is combined with empirical analysis of vehicle speeds during a flood, to perturb a transport accessibility model to determine the impact of a given event on journey times. The study assessed the potential impact of flooding on the network performance in relation to macroscopic urban travel times using Newcastle-upon-Tyne (UK) as a case study. Results showed relevant delays for two different hazard scenarios, for a maximum of 24 minutes and 42 minutes respectively. The impacts are significant and implementation of a probabilistic risk-based approach will provide a rational means to prioritise adaptation measures to reduce delays in these circumstances.
title: Numerical analysis of stress distribution in the reinforced concrete support beam bracket exposed to damage
Creators: name: Ubysz, Andrzej
name: Maj, Marek
name: Stachon, T.
name: Rogoza, Agnieszka
Publisher: name: Bauhaus-Universität Weimar
Year: 2010
Subjects: subject: Angewandte Informatik
subject: Angewandte Mathematik
subject: Architektur
subject: Computerunterstütztes Verfahren
subject: 000
subject: 510

description: The article presents analysis of stress distribution in the reinforced concrete support beam bracket which is a component of prefabricated reinforced concrete building. The building structure is spatial frame where dilatations were applied. The proper stiffness of its structure is provided by frames with stiff joints, monolithic lift shifts and staircases. The prefabricated slab floors are supported by beam shelves which are shaped as inverted letter ‘T’. Beams are supported by the column brackets. In order to lower the storey height and fulfill the architectural demands at the same time, the designer lowered the height of beam at the support zone. The analyzed case refers to the bracket zone where the slant crack. on the support beam bracket was observed. It could appear as a result of overcrossing of allowable tension stresses in reinforced concrete, in the bracket zone. It should be noted that the construction solution applied, i.e. concurrent support of the “undercut” beam on the column bracket causes local concentration of stresses in the undercut zone where the strongest transverse forces and tangent stresses occur concurrently. Some additional rectangular stresses being a result of placing the slab floors on the lower part of beam shelves sum up with those described above.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07.2009, Bauhaus-Universität Weimar, vol. 18, 2009
Supplementary document for Large circular dichroism in the emission by an incandescent metasurface - 6225739.pdf
Creators: name: Nguyen, Anne
name: Hugonin, Jean-Paul
name: Coutrot, Anne-Lise
name: Garcia-Caurel, Enrique
name: vest, benjamin
name: Greffet, Jean-Jacques
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplementary material
A Bayesian network approach to coastal storm impact modeling
Creators: name: Jäger, Wiebke S.
name: Den Heijer, C. (Kees)
name: Bolle, Annelies
name: Hanea, Anca M.
Publisher: name: The University of British Columbia
Year: 2015

description: In this paper we develop a Bayesian network (BN) that relates offshore storm conditions to their accompanying flood characteristics and damages to residential buildings, following on the trend of integrated flood impact modeling. It is based on data from hydrodynamic storm simulations, information on land use and a depth-damage curve. The approach can easily be applied to any site. We have chosen the Belgian village Zeebrugge as a case study, although we use a simplified storm climate. The BN can predict spatially varying inundation depths and building damages for specific storm scenarios and diagnose under which storm conditions and where on the site the highest impacts occur.
A time-dependent seismic resilience analysis approach for networked lifelines
Creators: name: Paredes, Roger
name: Dueñas-Osorio, Leonardo
Publisher: name: The University of British Columbia
Year: 2015

description: This paper presents an integrated resilience-based modeling approach for assessing the resilience of coupled networked lifeline systems considering as input-spaces their capacity, fragility, and response actions, including those informed by engineering and community-based policy. We develop a time-dependent resilience concept for systems under seismic hazards, which rests upon a flow-based core for assessing performance while considering interdependencies among them. This approach relies on robust mathematical optimization techniques for studying distributed systems and their ability to allocate limited resources in time during the recovery process. The proposed approach not only outperforms typical connectivity based assessments with a better physical approximation of lifelines, but also is proven practical computationally as it enables sensitivity assessments to redundancy, robustness, and resourcefulness in the context of interdependent lifelines geared towards improving resilience. For lifeline benchmark models we found that provisioning a minimum size of restoration can increase time-dependent resilience as much as 25% for relatively fragile systems.
The post-outburst evolution of RW Cep
Creators: name: Kasikov, Anni
name: Kolka, Indrek
name: Aret, Anna
Publisher: name: Zenodo
Year: 2024

description: The great dimming of hypergiant RW Cep at the end of 2022 piqued the interest of both the amateur andprofessional astronomy community (ATel #15800 by Vollmann and Sigismondi). The reported V-filterbrightness dropped to 7.6 mag - down by about 0.9 mag from its previous mean level, comparable to thedimming of Betelgeuse in 2019. The dimming has been attributed to an ongoing mass-loss event.Spectra taken during the event have revealed newly-formed emission components in many absorptionlines. We have monitored RW Cep using the medium-resolution spectrograph attached to the 1.5-mtelescope at Tartu Observatory and complemented that data with high-resolution echelle spectra from theNordic Optical Telescope. With our spectral time series we can follow the variability of RW Cep as it goesthrough the outburst event. We discuss the dynamics of the star’s extensive atmosphere and considerthe post-RSG evolution of RW Cep in the context of yellow hypergiants.
title: Special functions versus elementary functions in hypercomplex function theory
Creators: name: Malonek, Helmuth R.
Publisher: name: Bauhaus-Universität Weimar
Year: 2010
Subjects: subject: Angewandte Informatik
subject: Angewandte Mathematik
subject: Architektur
subject: Computerunterstütztes Verfahren
subject: 000
subject: 510

description: In recent years special hypercomplex Appell polynomials have been introduced by several authors and their main properties have been studied by different methods and with different objectives. Like in the classical theory of Appell polynomials, their generating function is a hypercomplex exponential function. The observation that this generalized exponential function has, for example, a close relationship with Bessel functions confirmed the practical significance of such an approach to special classes of hypercomplex differentiable functions. Its usefulness for combinatorial studies has also been investigated. Moreover, an extension of those ideas led to the construction of complete sets of hypercomplex Appell polynomial sequences. Here we show how this opens the way for a more systematic study of the relation between some classes of Special Functions and Elementary Functions in Hypercomplex Function Theory.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07.2009, Bauhaus-Universität Weimar, vol. 18, 2009
Memories of the War - Dick and Elaine Sheppard
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Dick Arthur Sheppard was 19 when he landed on 6th June 1944 (D-Day).He met his wife (Elaine) in France, and they used to send love letters. Elaine immigrated to the UK to marry Richard. They met in Criquetot-l'Esneval where Elaine lived, when she gave Richard some milk to go with his tea.Elaine mostly ate sweets and turnips during the War, so refused to cook them later in life!Elaine's house was bombed and when she came home only the gate was left.Richard suggests that young people watch "Saving Private Ryan" to get the best idea of what it felt like to be in that situation.Richard fought in the Battle of Rauray, Normandy.On D-Day, Dick's sergeant (Sgt Albert George) was shot in the head by a sniper. He was buried in Ryves. Dick and Elaine wanted their ashes to be scattered there by the sergeant's grave.Dick was demobbed in 1946 and he returned to his old job on the railways as a shunter. In 1950 he went to work in a tripe factory for a local butcher. He was still living with his mother in Cardiff but in 1956 his boss loaned him the money to buy a small house in Grangetown, Cardiff. The contributor’s elder brother was born in 1949, the contributor was born in 1952, and her youngest brother was born in 1956.In 1959 they moved to the house in which the contributor now lives in in Llandaff, Cardiff. In 1962 Dick joined the Post Office as a postman and remained there until his retirement.The contributor’s Mum was a housewife from the time she came to Wales and brought up the contributor and her two brothers. The contributor’s mother actually taught French to students privately and around 1968 she worked as a cleaner in a school. In 1971 she was working for an engineering company who asked her to go to Algiers to translate documents, which she did, and stayed with this company (as an accounts clerk) until she retired.The contributor always felt that her mother was a very clever woman. She said she always wanted to be a teacher but as the eldest in her family, she left school at 14 and worked in a grocer’s shop in her little village in France.The contributor now lives in the family home in Llandaff, the house that was left to her and her siblings. The contributor’s younger brother lives next door and her elder brother lives in Caerphilly on the outskirts of Cardiff.There were three children from the marriage: the contributor and her two brothers. From the contributor and her elder brother there are 5 grandchildren and 9 great grandchildren (ages ranging from 14 to 32 years).NOTE: Additional information was provided after the Digital Collection Day.
title: Multiscale modeling and computational remodeling of human eye tissues
Creators: name: Meschke, Günther
name: Grytz, Rafael
Publisher: name: Bauhaus-Universität Weimar
Year: 2010
Subjects: subject: Angewandte Informatik
subject: Angewandte Mathematik
subject: Architektur
subject: Computerunterstütztes Verfahren
subject: 000
subject: 510

description: A stress based remodeling approach is used to investigate the sensitivity of the collagen architecture in humane eye tissues on the biomechanical response of the lamina cribrosa with a particular focus on the stress environment of the nerve fibers. This approach is based on a multi-level biomechanical framework, where the biomechanical properties of eye tissues are derived from a single crimped fibril at the micro-scale via the collagen network of distributed fibrils at the meso-scale to the incompressible and anisotropic soft tissue at the macro-scale. Biomechanically induced remodeling of the collagen network is captured on the meso-scale by allowing for a continuous reorientation of collagen fibrils. To investigate the multi-scale phenomena related to glaucomatous neuropathy a generalized computational homogenization scheme is applied to a coupled two-scale analysis of the human eye considering a numerical macro- and meso-scale model of the lamina cribrosa.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07.2009, Bauhaus-Universität Weimar, vol. 18, 2009
title: Understanding the aspect of fuzziness in interpolation methods
Creators: name: Abu Abed, Wassim
name: Milbradt, Peter
Publisher: name: Bauhaus-Universität Weimar
Year: 2010
Subjects: subject: Angewandte Informatik
subject: Angewandte Mathematik
subject: Architektur
subject: Computerunterstütztes Verfahren
subject: 000
subject: 510

description: Fuzzy functions are suitable to deal with uncertainties and fuzziness in a closed form maintaining the informational content. This paper tries to understand, elaborate, and explain the problem of interpolating crisp and fuzzy data using continuous fuzzy valued functions. Two main issues are addressed here. The first covers how the fuzziness, induced by the reduction and deficit of information i.e. the discontinuity of the interpolated points, can be evaluated considering the used interpolation method and the density of the data. The second issue deals with the need to differentiate between impreciseness and hence fuzziness only in the interpolated quantity, impreciseness only in the location of the interpolated points and impreciseness in both the quantity and the location. In this paper, a brief background of the concept of fuzzy numbers and of fuzzy functions is presented. The numerical side of computing with fuzzy numbers is concisely demonstrated. The problem of fuzzy polynomial interpolation, the interpolation on meshes and mesh free fuzzy interpolation is investigated. The integration of the previously noted uncertainty into a coherent fuzzy valued function is discussed. Several sets of artificial and original measured data are used to examine the mentioned fuzzy interpolations.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07.2009, Bauhaus-Universität Weimar, vol. 18, 2009
title: Elements – Continents: Approaches to Determinants of Environmental History and their Reifications ; Leopoldina Workshop, Göttingen, Germany, November 14 to 15, 2007
Creators: name: :None
Publisher: name: Wissenschaftliche Verlagsgesellschaft mbH
Year: 2009
Subjects: subject: Historische Umweltforschung
subject: 900
subject: 333.7

description: Zu den Gebieten, die zurzeit verstärktes Interesse finden, gehört die Umweltgeschichte. Der Band konzentriert sich auf Grundfragen des umwelthistorischen Diskurses durch Rückbesinnung auf elementare Mensch-Umwelt-Beziehungen durch zwei Annäherungen: „Elemente“ und „Kontinente“. Mit Hilfe dieses kleinen wie großen Maßstabes wurde der Bedeutung am Konkreten und im historischen Aufriss nachgegangen. Unter der Überschrift „Elemente“ werden Feuer, Wasser, Luft und Erde als unmittelbare, für das Leben determinierende Qualitäten, die sich im ökologischen Prozessgeschehen abbilden, analysiert. So wird etwa die Rolle der Feuerökologie am Beispiel mitteleuropäischer und nordamerikanischer Wälder behandelt oder dem Element Wasser und seinen Aggregatzuständen in der Bedeutung für die Geschichte der Niederlande nachgegangen. Hinzu kommt als weitere Dimension die Biosphäre. Die „Kontinente“ Afrika, Amerika, Asien, Australien und Europa bilden das thematische Äquivalent. Insbesondere werden hier die Auswirkungen der naturräumlichen Grundausstattung auf die wirtschaftliche und kulturelle Entwicklung thematisiert. Die Palette der Themen reicht dabei vom „europäischen Sonderweg“ bis zur chinesischen Umweltgeschichte. Darüber hinaus liefern Beiträge von Nachwuchswissenschaftlern einen Einblick in die Bandbreite laufender umwelthistorischer Projekte.
description: Nova Acta Leopoldina: NAL ; Abhandlungen der Deutschen Akademie der Naturforscher Leopoldina, vol. 98, Nr. 360
title: Estimating uncertainties from inaccurate measurement data using maximum entropy distributions
Creators: name: Most, Thomas
Publisher: name: Bauhaus-Universität Weimar
Year: 2010
Subjects: subject: Angewandte Informatik
subject: Angewandte Mathematik
subject: Architektur
subject: Computerunterstütztes Verfahren
subject: 000
subject: 510

description: Modern engineering design often considers uncertainties in geometrical and material parameters and in the loading conditions. Based on initial assumptions on the stochastic properties as mean values, standard deviations and the distribution functions of these uncertain parameters a probabilistic analysis is carried out. In many application fields probabilities of the exceedance of failure criteria are computed. The out-coming failure probability is strongly dependent on the initial assumptions on the random variable properties. Measurements are always more or less inaccurate data due to varying environmental conditions during the measurement procedure. Furthermore the estimation of stochastic properties from a limited number of realisation also causes uncertainties in these quantities. Thus the assumption of exactly known stochastic properties by neglecting these uncertainties may not lead to very useful probabilistic measures in a design process. In this paper we assume the stochastic properties of a random variable as uncertain quantities caused by so-called epistemic uncertainties. Instead of predefined distribution types we use the maximum entropy distribution which enables the description of a wide range of distribution functions based on the first four stochastic moments. These moments are taken again as random variables to model the epistemic scatter in the stochastic assumptions. The main point of this paper is the discussion on the estimation of these uncertain stochastic properties based on inaccurate measurements. We investigate the bootstrap algorithm for its applicability to quantify the uncertainties in the stochastic properties considering imprecise measurement data. Based on the obtained estimates we apply standard stochastic analysis on a simple example to demonstrate the difference and the necessity of the proposed approach.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07.2009, Bauhaus-Universität Weimar, vol. 18, 2009
Statistical investigation of extreme weather conditions
Creators: name: Proske, D.
Publisher: name: The University of British Columbia
Year: 2015

description: Structures are exposed to an ensemble of natural hazards. Earthquakes and flooding’s are the most recognized natural hazards, but structures also have to be safe under extreme weather conditions such wind and hurricanes, heat periods and colds, extreme rainfalls, hail and freezing rain. Some of this hazards are usually not investigated in detail, however based on statistical investigations, hazard curves and representative values of hazards can be defined, if required. They can be applied in probabilistic computations to achieve the probability of failure of the structures. Although major efforts have been undertaken in recent years to estimate the hazards and the representative values, we have to notice, that the validity of the provided natural hazards estimations by means of statistical investigations is limited due to confined sample populations. One of this causes is the recently increased knowledge using data with extreme values from non-instrumental periods, which heavily influences the outcome of the statistics, if considered. Newer statistical methods and the inclusion of historical data can, but need not necessarily improve results under all conditions. This development has also been observed in seismic loading estimation and in flooding hazard prognosis.
Error Bounds for Learning with Vector-Valued Random Features
Creators: name: Lanthaler, Samuel
name: Nelsen, Nicholas H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 68T05, 68Q32, 62J07, 62F12

description: This paper provides a comprehensive error analysis of learning with vector-valued random features (RF). The theory is developed for RF ridge regression in a fully general infinite-dimensional input-output setting, but nonetheless applies to and improves existing finite-dimensional analyses. In contrast to comparable work in the literature, the approach proposed here relies on a direct analysis of the underlying risk functional and completely avoids the explicit RF ridge regression solution formula in terms of random matrices. This removes the need for concentration results in random matrix theory or their generalizations to random operators. The main results established in this paper include strong consistency of vector-valued RF estimators under model misspecification and minimax optimal convergence rates in the well-specified setting. The parameter complexity (number of random features) and sample complexity (number of labeled data) required to achieve such rates are comparable with Monte Carlo intuition and free from logarithmic factors.
description: 28 pages, 1 table, 3 figures. NeurIPS 2023 spotlight
title: Free vibration frequencies of the cracked reinforced concrete beams - methods of calculations
Creators: name: Musial, Michal
name: Kaminski, Mieczysław
name: Ubysz, Andrzej
Publisher: name: Bauhaus-Universität Weimar
Year: 2010
Subjects: subject: Angewandte Informatik
subject: Angewandte Mathematik
subject: Architektur
subject: Computerunterstütztes Verfahren
subject: 000
subject: 510

description: The paper presents method of calculation of natural frequencies of the cracked reinforced concrete beams including discreet model of crack. The described method is based on the stiff finite elements method. It was modified in such a way as to take into account local discontinuities (ie. cracks). In addition, some theoretical studies as well as experimental tests of concrete mechanics based on discrete crack model were taken into consideration. The calculations were performed using the author’s own numerical algorithm. Moreover, other calculation methods of dynamic reinforced concrete beams presented in standards and guidelines are discussed. Calculations performed by using different methods are compared with the results obtained in experimental tests.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07.2009, Bauhaus-Universität Weimar, vol. 18, 2009