cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ludics with repetitions (Exponentials, Interactive types and Completeness)
Creators: name: Faggian, Claudia
name: Basaldella, Michele
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.4.1, F.3

description: Ludics is peculiar in the panorama of game semantics: we first have the definition of interaction-composition and then we have semantical types, as a set of strategies which "behave well" and react in the same way to a set of tests. The semantical types which are interpretations of logical formulas enjoy a fundamental property, called internal completeness, which characterizes ludics and sets it apart also from realizability. Internal completeness entails standard full completeness as a consequence. A growing body of work start to explore the potential of this specific interactive approach. However, ludics has some limitations, which are consequence of the fact that in the original formulation, strategies are abstractions of MALL proofs. On one side, no repetitions are allowed. On the other side, the proofs tend to rely on the very specific properties of the MALL proof-like strategies, making it difficult to transfer the approach to semantical types into different settings. In this paper, we provide an extension of ludics which allows repetitions and show that one can still have interactive types and internal completeness. From this, we obtain full completeness w.r.t. a polarized version of MELL. In our extension, we use less properties than in the original formulation, which we believe is of independent interest. We hope this may open the way to applications of ludics approach to larger domains and different settings.
title: 1D and 3D inversion and modelling of airborne transient electromagnetic and magnetic data from over a potential volcanogenic massive sulphide deposit, Cripple Creek, Newfoundland
Creators: name: Demirbaş, Alican
Publisher: name: Memorial University of Newfoundland
Year: 2021

description: Electromagnetic (EM) methods, including Transient Electromagnetic (TEM), and magnetic methods, are commonly used in mineral exploration. In this study, EM and magnetic measurements are used to investigate possible mineralization zones in the Cripple Creek property in the Gander area, Newfoundland, Canada. This study's main goal is to invert airborne TEM data for recovering the conductive structures of the mineralization zones in the area of interest. Airborne magnetic and ground-based frequency-domain EM data are are also considered as supportive techniques, along with the TEM data-set. The magnetic results help define the regional geological structure of the area of interest. The ground-based frequency-domain EM, which exists over a limited area, and the TEM responses are compared and are shown to be mostly consistent. The geometry of a mineralized zone suggested by the TEM inversion is then refined by further computer modelling (using the software “Maxwell”). The resulting models are compared and discussed in terms of correctness of the inversion and the methods' effectiveness. The results show that the 3D models of the conductivity interpolated from 1D inversion results of the TEM data recover the near-surface structures quite well but become inaccurate at depth. It is shown that the models resulting from the 3D magnetic inversion are partially consistent with the TEM results. This is possible because of the physical property of the structure of interest, which means that the area of interest does not show the same magnetic properties everywhere. Both magnetic and TEM results are only overlapping on one of the flight lines, L2220. However, when the magnetic inversion is considered separately, it helps to reveal the magnetic properties reasonably well around the structure of interest.
Notice biographique sur le Père (Grégoire) Girard de Fribourg
Creators: name: Naville, Ernest
Publisher: name: Joël Cherbuliez
Year: 1850
Subjects: subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Girard, Grégoire
subject: Freiburg im Üechtland

description: Sonderdruck
title: SMM-Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ðµ ÐºÐ°Ðº ÑÐ»ÐµÐ¼ÐµÐ½Ñ ÐºÐ¾Ð¼Ð¼ÑÐ½Ð¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: SMM - promotion as an element of the organizations communication activities
Creators: name: Ð¦Ð²ÐµÑÐºÐ¾Ð²Ð°, ÐÐ½Ð°ÑÑÐ°ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: SMM-Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ðµ
ÑÐ¾ÑÐ¸Ð°Ð»ÑÐ½ÑÐµ Ð¼ÐµÐ´Ð¸Ð°
Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ðµ Ð² ÑÐ¾ÑÐ¸Ð°Ð»ÑÐ½ÑÑ ÑÐµÑÑÑ
ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÑÑÐ°ÑÐµÐ³Ð¸Ð¸ Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ
event-Ð°Ð³ÐµÐ½ÑÑÑÐ²Ð¾
SMM-promotion
social media
promotion in social networks
improve-ment of promotion strategy
event-agency

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸Ð·Ð»Ð¾Ð¶ÐµÐ½Ð° ÑÑÑÐ½Ð¾ÑÑÑ Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ Ð² ÑÐ¾ÑÐ¸Ð°Ð»ÑÐ½ÑÑ Ð¼ÐµÐ´Ð¸Ð° Ð¿ÑÐ¸ Ð¿Ð¾Ð¼Ð¾ÑÐ¸ Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½ÑÐ¾Ð² SMM. ÐÐ°Ð½ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ð¹ Ð¸ Ð¿Ð¾Ð´ÑÐ¾Ð´Ð¾Ð² Ðº Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ Ð² ÑÐ¾ÑÐ¸Ð°Ð»ÑÐ½ÑÑ ÑÐµÑÑÑ, ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð²Ð¸Ð´Ñ SMM Ð¸ ÐµÐ³Ð¾ Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½ÑÑ. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½ÑÑ Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ Ð² ÑÐ¾ÑÐ¸Ð°Ð»ÑÐ½ÑÑ ÑÐµÑÑÑ, ÑÑÐ°Ð¿Ñ, ÑÐ»ÐµÐ¼ÐµÐ½ÑÑ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ñ ÑÐ¿Ð¾ÑÐ¾Ð±Ñ Ð¿Ð¾ Ð¾ÑÐµÐ½ÐºÐ¸ Ð¸Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° ÑÑÑÐ°ÑÐµÐ³Ð¸Ñ Ð¿Ð¾ ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð° Ð² ÑÐ¾ÑÐ¸Ð°Ð»ÑÐ½ÑÑ ÑÐµÑÑÑ Ð´Ð»Ñ event-Ð°Ð³ÐµÐ½ÑÑÑÐ²Ð° Â«BerezaÂ».
description: n the given work the essence of the of the companys promotion with the help of SMM tools is described. The general concepts of the term "marketing in social networks" are given, the types of SMM and its tools are considered. The mecha-nisms of promotion in social networks, stages and elements are considered, as well as the ways to evaluate their effectiveness. A strategy marketing in social networks for the Bereza event agency.
Vagus Nerve Stimulation (tVNS) in Autism
Creators: name: Abbaszade, Sajjad
name: Zakery, Pooya
name: Ahangari, Iraj
name: Jami, Ali
name: tadros, eman
name: Derakhshani, Horeyeh
name: Asgharian Asl, Fatemeh
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 420109
subject: Rehabilitation
classificationCode: 420104
subject: Occupational therapy
classificationCode: 520203
subject: Cognitive neuroscience
classificationCode: 520202
subject: Behavioural neuroscience
classificationCode: 520206
subject: Psychophysiology
classificationCode: 520207
subject: Social and affective neuroscience

description: Autism is a condition that can make it difficult for people to understand and express emotions, as well as process sensory information from their bodies. This study looked at whether a non-invasive treatment called transcutaneous vagus nerve stimulation (tVNS) could help improve these challenges in children with autism.The researchers found that children who received tVNS, along with their regular therapy, showed significant improvements in several areas compared to children who only had regular therapy. The tVNS group got better at recognizing emotions in faces, controlling their emotions, and processing sensory information. They also had improvements in fine motor skills and the ability to sit still.These findings suggest that stimulating the vagus nerve, which is important for connecting the body and the brain, may help address core difficulties experienced by children with autism. By enhancing their ability to perceive internal bodily signals and emotions, tVNS may improve social skills, sensory processing, and self-regulation.Overall, this non-invasive brain stimulation technique appears to be a promising new approach for treating autism. Further research is needed, but these results indicate that targeting the vagus nerve could be a valuable addition to existing therapies. Ultimately, the goal is to find ways to better support the well-being and functioning of individuals with autism and their families.
Optimal Beamforming in Interference Networks with Perfect Local Channel Information
Creators: name: Mochaourab, Rami
name: Jorswieck, Eduard
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We consider settings in which T multi-antenna transmitters and K single-antenna receivers concurrently utilize the available communication resources. Each transmitter sends useful information only to its intended receivers and can degrade the performance of unintended systems. Here, we assume the performance measures associated with each receiver are monotonic with the received power gains. In general, the systems' joint operation is desired to be Pareto optimal. However, designing Pareto optimal resource allocation schemes is known to be difficult. In order to reduce the complexity of achieving efficient operating points, we show that it is sufficient to consider rank-1 transmit covariance matrices and propose a framework for determining the efficient beamforming vectors. These beamforming vectors are thereby also parameterized by T(K-1) real-valued parameters each between zero and one. The framework is based on analyzing each transmitter's power gain-region which is composed of all jointly achievable power gains at the receivers. The efficient beamforming vectors are on a specific boundary section of the power gain-region, and in certain scenarios it is shown that it is necessary to perform additional power allocation on the beamforming vectors. Two examples which include broadcast and multicast data as well as a cognitive radio application scenario illustrate the results.
description: 30 pages, 6 figures, submitted to IEEE Transactions on Signal Processing, revised October 2010
MOESM1 of Early goal-directed and lactate-guided therapy in adult patients with severe sepsis and septic shock: a meta-analysis of randomized controlled trials
Creators: name: Ding, Xian-Fei
name: Yang, Zi-Yue
name: Xu, Zhen-Tao
name: Li, Li-Feng
name: Yuan, Bo
name: Guo, Li-Na
name: Wang, Le-Xin
name: Zhu, Xi
name: Sun, Tong-Wen
Publisher: name: figshare
Year: 2018
Subjects: Developmental Biology

description: Additional file 1. PRISMA 2009 checklist.
High speed excited multi-solitons in nonlinear Schrödinger equations
Creators: name: Cote, Raphaël
name: Coz, Stefan Le
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider the nonlinear Schrödinger equation with a general nonlinearity. In dimension higher than 2, this equation admits travelling wave solutions with a fixed profile which is not the ground state. This kind of profiles are called excited states. In this paper, we construct solutions to NLS behaving like a sum of N excited states which spread up quickly as time grows (which we call multi-solitons). We also show that if the flow around one of these excited states is linearly unstable, then the multi-soliton is not unique, and is unstable.
Exact ground state of the sine-square deformed XY spin chain
Creators: name: Katsura, Hosho
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the sine-square deformed quantum XY chain with open boundary conditions, in which the interaction strength at the position $x$ in the chain of length $L$ is proportional to the function $f_x = \sin^2 [π/L (x-1/2)]$. The model can be mapped onto a free spinless fermion model with site-dependent hopping amplitudes and on-site potentials via the Jordan-Wigner transformation. Although the single-particle eigenstates of this system cannot be obtained in closed form, it is shown that the many-body ground state is identical to that of the uniform XY chain with periodic boundary conditions. This proves a conjecture of Hikihara and Nishino [Hikihara T and Nishino T 2011 {\it Phys. Rev. B} \textbf{83} 060414(R)] based on numerical evidence.
description: 10 pages
Inventory of Major Land Uses in the United States
Creators: name: Reuss, L. A.
name: Wooten, H. H.
name: Marschner, F. J.
name: Reuss, L. A.
name: Wooten, H. H.
name: Marschner, F. J.
Publisher: name: Unknown
Year: 1948
Subjects: Crop Production/Industries
Land Economics/Use
Livestock Production/Industries

description: Excerpts from the report: At all times many people are interested in the use of land and the way in which the land is divided among agricultural uses. In response to this interest, the Bureau of Agricultural Economics has compiled and published occasionally over the last 25 years, figures that show the acreages used for crops, the pasture and grazing areas, forests and woodlands, and other major land areas. This report follows generally these past inventories as to scope and in the procedure for the assembly of data. Gradually, however, there has been accumulation of data on land use and ownership for a longer period, thus making possible more complete information on trends than heretofore available. Coverage also is more complete by States and regions than formerly, owing to improvements in mapping by aerial photography and in statistical and other surveys of agriculture, land use and conditions affecting use. The purpose of the present publication is to supply an account of the extent and distribution of the major agricultural land uses and a general analysis of the land use situation in the United States, showing the latest data available for both land in farms and land outside farms. The information on the acreages of land devoted to the chief purposes provides a comprehensive picture of the use of all land in the United States, trends in land use, and elements affecting use.
title: Εξελικτικές στρατιωτικές στρατηγικές
Creators: name: Κατσαρη Μαρια
Publisher: name: Technical University of Crete
Year: 2021

description: Η παρούσα μεταπτυχιακή διατριβή έχει ως στόχο την κριτική ανάλυση και την μελέτη των τομέων στους οποίους εφαρμόζεται η θεωρία παιγνίων. Όπως φάνηκε, η θεωρία αυτή, η οποία κατά την διάρκεια των ετών εξελίχτηκε και προσαρμόστηκε ώστε να καλύπτει πολλούς περισσότερους τομείς από την αρχική, εφαρμόζεται σε κλάδους όπως η βιολογία, το δίκαιο και η εγκληματολογία, στην σύγχρονη επιστήμη της κυβερνοασφάλειας, στην οικονομία, στην ηθική και την φιλοσοφία, στην γλωσσολογία, στην ιατρική , στην ψυχολογία και την κοινωνιολογία, μεταξύ άλλων. Επιπλέον, εφαρμόζεται και στις εξελιγμένες στρατιωτικές στρατηγικές και κυρίως στην αναπαραγωγική δυναμική μάχης, όπως αναλύεται διεξοδικά στην εργασία.
Papers from the Third International Conference on Austronesian Linguistics, Vol. 3: Accent on variety
Creators: name: Halim, Amran (Ed.)
name: Carrington, Lois (Ed.)
name: Wurm, S.A. (Ed.)
Publisher: name: Pacific Linguistics
Year: 1982

description: C-76
description: Contents iiiINTRODUCTION ivTHE CONTRIBUTORS vLOCATION MAP vi{Joseph F. KESS} 1-25Tagalog respect forms: sociolinguistic uses, origins, and parallels.{J.P. SARUMPAET} 27-78Linguistic varieties in Toba-Batak.{Roland WALKER} 79-94Language use at Namatota: a sociolinguistic profile.{Kay IKRANAGARA} 95-114Two schools: on functions of language in the classroom in Indonesia.{Istiati SUTOMO} 115-122Some sociocultural factors as determinants of language proficiency.{E.A. KONDRASHKINA} 123-129Sociolinguistic research on Indonesian and Malay in the Soviet Union.{Threes Y. KUMANIRENG} 131-136Diglossia in Larantuka, Flores: a study about language use and language switching among the Larantuka community.{Ross CLARK} 137-143'Necessary' and 'unnecessary' borrowing.{D.J. PRENTICE} 145-155Some ludic aspects of Timugon Murut.{Gary F. SIMONS} 157-226Word taboo and comparative Austronesian linguistics.{Precy ESPIRITU-REID} 227-246'Filipino' as a union language for the Philippines.{C.D. GRIJNS} 247-285Patterns of cohesion in Jakarta Malay: towards a more objective method of describing areal variation.{Bernd NOTHOFER} 287-309Central Javanese dialects.{James J. FOX} 311-318The Rotinese chotbah as a linguistic performance.{KMA M. USOP} 319-324Karunya: the Ngaju Dayak songs of praise.
How does the uncaptured uniqueness of survey respondents impact the analysis of group differences?
Creators: name: Dewsnap, Kyle
Publisher: name: University of British Columbia
Year: 2022

description: Survey-driven research frequently relies on the analysis of differences between subpopulations that share social identities, such as gender or ethnicity. One method of gathering identity information from research participants is the identity item, which I define as a closed-form, single response survey item that prompts a respondent to endorse an option that corresponds to the identity group they belong to. A potential concern for researchers using these items is “identity item mismatch,” where a respondent’s social identity does not fully conform to any of the options available on an identity item. Here, I examine whether this mismatch between the social identities of respondents and the response options on an identity item can bias the multiple regression analysis of survey response data. This thesis relies upon established literature in the cognitive aspects of survey methodology and social identity theory to first build a working theory of how identity item mismatch is produced through an interaction between respondents, the social identities of the respondents, and identity items. This theory then motivates a Monte Carlo simulation of a survey-driven research study, which uses a two-stage beta-Bernoulli event to characterise the response process necessary to answer a gender identity item. In two studies, I use this simulation to demonstrate that an increase in identity item mismatch behaviour biases estimates of population-level differences between identity groups. This bias also emerges when certain social identities within a sample of respondents are not listed as a response category on an identity item. Ultimately, this research illustrates how the data generated through identity items could impact the quality of the inferences generated from survey responses, which motivates the development of revised or alternative survey methods for the capturing of social identity.
title: Mixed findings of the irrelevant sound effect in surprise recognition memory tasks
Creators: name: MacDermid, Anna
Publisher: name: Memorial University of Newfoundland
Year: 2021

description: The irrelevant sound effect (ISE) is the finding that irrelevant sound impairs recognition memory performance. Traditionally explored in serial recall, the current study attempts to elicit the effect in a surprise recognition task. Of the many ISE models, only the Object-Oriented Episodic Record (O-OER) model approaches the effect from an order-centric position. As such, given reduced need for order information in this design, O-OER predicts a null effect. A successful manipulation check in Experiment 1 confirmed that the stimuli were sufficient to produce the effect under a standard serial recall design and confirmed statistical equivalency between in-person and online participants. Experiment 2, expanding on Stokes and Arnell (2012), implemented a surprise two alternative forced choice (2AFC) recognition task under quiet, steady-state, and changing-state sound. Performance in the two statistically equivalent sound conditions was impaired, a result consist with all predictions. Experiments 3 and 4 followed this same design but employed alternative cover tasks. Neither experiment reported statistical differences between sound conditions. These results are best described by the O-OER model, however implications for other models such as the Feature model are also discussed.
Toward a common understanding of competencies for health technology assessment: enhancing educational and training programs around the globe
Creators: name: Mueller, Debjani
name: Gutierrez-Ibarluzea, Iñaki
name: Chiumente, Marco
name: Oortwijn, Wija
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit
subject: capacity building
subject: capacity development
subject: competencies
subject: health technology assessment
subject: HTA

description: Background: Depending on the health system context and the demands of relevant stakeholders in countries, the need, organizational structure, and prerequisites for enabling capacity building and development in health technology assessment (HTA) will vary. Core competencies are instrumental in this and include essential knowledge, skills, and attitudes (KSAs). They provide building blocks for delivering high-quality and effective practices of HTA. We aimed to systematically explore and develop an overview of the core competencies necessary for HTA. Methods: This study was conducted during 2016–19 using different methods in a structured manner. We drew concepts of KSAs from various literature sources, surveyed universities and HTA professionals, and conducted expert workshops to arrive at a common understanding of the required competencies. Results: The terminology for KSAs defining competencies in HTA programs has been clarified. In addition, a list of competencies offered through different educational and training programs has been created. The surveys provided clarity on a common understanding of KSAs among HTA stakeholders. Thereafter, a set of competencies was described and classified according to the HTA domains. Conclusions: Our study shows that there is diversity in HTA programs offered by educational institutions. The content of the programs varies due to differences between countries regarding the level of HTA development and the need for HTA, including the understanding of what HTA is. The preparation of a competency checklist or a “menu” of options mirroring the diversity of HTA will ensure that the specific needs of the HTA community will be covered.
title: A Human−Computer Interface Replacing Mouse and Keyboard for Individuals with Limited Upper Limb Mobility
Creators: name: Gür, Diyar
name: Schäfer, Niklas
name: Kupnik, Mario
name: Beckerle, Philipp
Publisher: name: MDPI
Year: 2022

description: People with physical disabilities in their upper extremities face serious issues in using classical input devices due to lacking movement possibilities and precision. This article suggests an alternative input concept and presents corresponding input devices. The proposed interface combines an inertial measurement unit and force sensing resistors, which can replace mouse and keyboard. Head motions are mapped to mouse pointer positions, while mouse button actions are triggered by contracting mastication muscles. The contact pressures of each fingertip are acquired to replace the conventional keyboard. To allow for complex text entry, the sensory concept is complemented by an ambiguous keyboard layout with ten keys. The related word prediction function provides disambiguation at word level. Haptic feedback is provided to users corresponding to their virtual keystrokes for enhanced closed-loop interactions. This alternative input system enables text input as well as the emulation of a two-button mouse.
Formation of vivianite in digested sludge and its controlling factors in municipal wastewater treatment
Creators: name: Heinrich, Lena
name: Schmieder, Peter
name: Barjenbruch, Matthias
name: Hupfer, Michael
Publisher: name: Technische Universität Berlin
Year: 2022
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaften::628 Sanitär- und Kommunaltechnik; Umwelttechnik
subject: municipal wastewater treatment
subject: chemical phosphorus elimination
subject: phosphorus recycling
subject: sulphur competition
subject: multivariate linear regression

description: Engineering solutions to recover phosphorus from municipal wastewater are required to close the anthropogenic phosphorus cycle. After chemical phosphorus elimination by iron, the ferrous iron‑phosphorus mineral vivianite forms in digested sludge, and its separation is being researched at the pilot scale. In this study, sludge samples from 16 wastewater treatment plants (WWTPs) demonstrated that phosphorus bound to biomass and redox-sensitive iron in activated sludge was transformed into other phosphorus binding forms, including vivianite, during digestion. Vivianite quantity was approximated using X-ray diffraction and two sequential extractions. These three independent methods of approximating vivianite quantity were closely related confirming their relationship to the vivianite content in the samples. The digested sludge from three WWTPs exhibited comparatively high levels of vivianite-bound phosphorus approximated between 31 % and 51 % of total phosphorus. The controlling factors of vivianite formation were investigated in order to enhance its formation in digested sludge and increase the amount of phosphorus recoverable as vivianite. They were identified using single and multivariate correlation (MLR), considering the sludge properties, sludge composition, and process parameters within the operating range of the 16 WWTPs. Increasing iron content was verified as the primary predictor of significantly increased vivianite formation (MLR: p < 0.001). In addition, increasing sulphur content was found to be an additional significant factor that decreased vivianite formation (MLR: p < 0.05). Furthermore, a comparison of plants using sulphur-free (FeCl2 and FeCl3) and sulphur-containing (FeSO4 and FeClSO4) precipitants indicated that the latter could increase the sulphur content in digested sludge (one-tailed Welch two-sample t-test: t(14.6) = 2.3, p = 0.02). Thus, by increasing the sulphur content, the use of sulphur-comprising precipitants may counteract vivianite formation, whereas sulphur-free precipitants may facilitate it and, hence, promote vivianite recovery.
The formation of disc galaxies in a LCDM universe
Creators: name: Agertz, Oscar
name: Teyssier, Romain
name: Moore, Ben
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We study the formation of disc galaxies in a fully cosmological framework using adaptive mesh refinement simulations. We perform an extensive parameter study of the main subgrid processes that control how gas is converted into stars and the coupled effect of supernovae feedback. We argue that previous attempts to form disc galaxies have been unsuccessful because of the universal adoption of strong feedback combined with high star formation efficiencies. Unless extreme amounts of energy are injected into the interstellar medium during supernovae events, these star formation parameters result in bulge dominated S0/Sa galaxies as star formation is too efficient at z~3. We show that a low efficiency of star-formation more closely models the subparsec physical processes, especially at high redshift. We highlight the successful formation of extended disc galaxies with scale lengths r_d=4-5 kpc, flat rotation curves and bulge to disc ratios of B/D~1/4. Not only do we resolve the formation of a Milky Way-like spiral galaxy, we also observe the secular evolution of the disc as it forms a pseudo-bulge. The disc properties agree well with observations and are compatible with the photometric and baryonic Tully-Fisher relations, the Kennicutt-Schmidt relation and the observed angular momentum content of spiral galaxies. We conclude that underlying small-scale star formation physics plays a larger role than previously considered in simulations of galaxy formation.
description: Published in MNRAS
Front matter for: Papers from the Third International Conference on Austronesian Linguistics, Vol. 3: Accent on variety
Creators: name: Halim, Amran (Ed.)
name: Carrington, Lois (Ed.)
name: Wurm, S.A. (Ed.)
Publisher: name: Pacific Linguistics
Year: 1982

description: Contents iiiINTRODUCTION ivTHE CONTRIBUTORS vLOCATION MAP vi
Thermal history, heatwaves, and the costs and benefits to physiological plasticity in the California mussel (Mytilus californianus)
Creators: name: Brownlee, Graham Robert Paul
Publisher: name: University of British Columbia
Year: 2022

description: Temperature, due to its influence on biochemical reaction rates, is one of the fundamental drivers of physiology for life on Earth. Because of this relationship, one of the predominant challenges species face in persisting in a changing climate is responding to shifts and perturbations in their thermal environment. While evolutionary processes can favourably shift phenotype distributions in response to altered thermal histories and demographic processes can improve genetic diversity and support population size and growth, possessing rapid-response mechanisms at the organismal level can assist the immediate persistence of a population facing extreme temperatures. Physiological plasticity is a process that can allow species to respond to a changing environment and improve their survival or maintain ecological performance. However, not all species are able to increase their upper thermal tolerance when facing more stressful temperatures, and while higher tolerance limits may improve survival in the short-term, there can be important and underappreciated impacts in sublethal responses like reproductive capacity. The primary goal of my thesis was to test the physiological plasticity of upper thermal tolerance, cardiac thermal tolerance, and reproductive capacity in an important rocky intertidal zone foundation species, Mytilus californianus (Conrad, 1837) following long-term aerial acclimation. Additionally, I tested the seasonal variation in upper thermal tolerance M. californianus expressed during the summer of 2021 and documented the effects of the Pacific Northwest heat dome on mussel survival in wave-exposed and wave-sheltered beds. I found that M. californianus substantially increases its upper thermal tolerance and maximum heart rate following acclimation to increasing aerial temperatures (22°C, 28°C, 34°C), but reproductive capacity is reduced at higher temperatures. M. californianus’ upper thermal tolerance increased over the summer of 2021, but to a lesser degree than the shifts produced at higher acclimation temperatures. Finally, I found minimal mortality in wave-exposed mussel beds following the heat dome, but substantial mortality in wave-sheltered beds. While plasticity in the upper thermal tolerance of M. californianus can improve persistence following short-term warming and heatwaves, declining reproductive capacity may have important population-level consequences on longer timescales that require further investigation to better understand the costs and benefits of physiological plasticity.
Adaptive Sampling for Structure-Preserving Model Order Reduction of Port-Hamiltonian Systems
Creators: name: Schwerdtner, Paul
name: Voigt, Matthias
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 500 Naturwissenschaften und Mathematik::510 Mathematik::518 Numerische Analysis
subject: model reduction
subject: H-infinity optimization
subject: structured systems
subject: port-Hamiltonian systems
subject: structure-preserving methods

description: We present an adaptive sampling strategy for the optimization-based structure-preserving model order reduction (MOR) algorithm developed in [Schwerdtner, P. and Voigt, M. (2020). Structure-preserving model order reduction by parameter optimization, Preprint arXiv:2011.07567]. This strategy reduces the computational demand and the required a priori knowledge about the given full-order model, while at the same time retaining a high accuracy compared to other structure-preserving but also unstructured MOR algorithms. A numerical study with a port-Hamiltonian benchmark system demonstrates the effectiveness of our method when combined with this new adaptive sampling strategy. We also investigate the distribution of the sample points.
title: ÐÐ¸ÑÐ°Ð¹ÑÐºÐ¾-ÑÐ¾ÑÑÐ¸Ð¹ÑÐºÐ¾Ðµ ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÑÐµÑÑÐ²Ð¾ Ð² ÑÑÐµÑÐµ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÐºÐ¸ Ð² ÑÐ°Ð¼ÐºÐ°Ñ Ð¸Ð½Ð¸ÑÐ¸Ð°ÑÐ¸Ð²Ñ Â«ÐÐ´Ð¸Ð½ Ð¿Ð¾ÑÑ, Ð¾Ð´Ð¸Ð½ Ð¿ÑÑÑÂ»
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ° Ð¿Ð¾ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ 41.04.01 - ÐÐ°ÑÑÐ±ÐµÐ¶Ð½Ð¾Ðµ ÑÐµÐ³Ð¸Ð¾Ð½Ð¾Ð²ÐµÐ´ÐµÐ½Ð¸Ðµ ; 41.04.01_02 - ÐÐ¸ÑÐ°Ð¹ÑÐºÐ°Ñ ÐÐ°ÑÐ¾Ð´Ð½Ð°Ñ Ð ÐµÑÐ¿ÑÐ±Ð»Ð¸ÐºÐ°
titleType: Subtitle
Creators: name: ÐÑÐ½ Ð®Ð°Ð½ÑÐ¶ÑÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: Â«ÐÐ´Ð¸Ð½ Ð¿Ð¾ÑÑ Ð¾Ð´Ð¸Ð½ Ð¿ÑÑÑÂ»
Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÑ
ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¾Ðµ ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÑÐµÑÑÐ²Ð¾
Ð²Ð·Ð°Ð¸Ð¼Ð½Ð°Ñ Ð²ÑÐ³Ð¾Ð´Ð°
ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ°Ñ Ð¸Ð½ÑÐµÐ³ÑÐ°ÑÐ¸Ñ

description: Ð ÐºÐ¾Ð½ÑÐµÐºÑÑÐµ Â«ÐÐ´Ð¸Ð½ Ð¿Ð¾ÑÑ, Ð¾Ð´Ð¸Ð½ Ð¿ÑÑÑÂ», Ð² Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÑÑÑ Ð¿ÑÐ¾ÑÐµÑÑ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ ÑÐ¾ÑÑÐ¸Ð¹ÑÐºÐ¾-ÐºÐ¸ÑÐ°Ð¹ÑÐºÐ¾Ð³Ð¾ ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÑÐµÑÑÐ²Ð° Ð² Ð¾Ð±Ð»Ð°ÑÑÐ¸ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÐºÐ¸ Ð¿ÑÑÐµÐ¼ ÑÐ°Ð·ÑÑÑÐ½ÐµÐ½Ð¸Ñ ÐºÐ¾Ð½ÑÐµÐ¿ÑÐ¸Ð¸ Â«ÐÐ´Ð¸Ð½ Ð¿Ð¾ÑÑ, Ð¾Ð´Ð¸Ð½ Ð¿ÑÑÑÂ» Ð¸ Ð¾Ð±ÑÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ñ ÑÐµÐ¾ÑÐ¸Ð¸ ÑÐµÐ³Ð¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð¹ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¸Ð½ÑÐµÐ³ÑÐ°ÑÐ¸Ð¸, ÑÐµÐ¾ÑÐ¸Ð¸ Ð²Ð·Ð°Ð¸Ð¼Ð½Ð¾Ð³Ð¾ ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÑÐµÑÑÐ²Ð° Ð¸ Ð³ÐµÐ¾Ð¿Ð¾Ð»Ð¸ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐµÐ¾ÑÐ¸Ð¸, ÑÐºÐ°Ð·ÑÐ²Ð°Ñ Ð½Ð° Â«ÐÐ´Ð¸Ð½ Ð¿Ð¾ÑÑ, Ð¾Ð´Ð¸Ð½ Ð¿ÑÑÑÂ» Ð¼ÐµÐ¶Ð´Ñ Ð Ð¾ÑÑÐ¸ÐµÐ¹ Ð¸ ÐÐ¸ÑÐ°ÐµÐ¼. Ð ÑÐ°Ð¼ÐºÐ°Ñ Ð±Ð°Ð·Ð¾Ð²ÑÑ ÑÑÐ»Ð¾Ð²Ð¸Ð¹ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÑÐµÑÑÐ²Ð°, Ð¿Ð¾ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ Ñ Ð°Ð½Ð°Ð»Ð¸Ð·Ð¾Ð¼ Ð¸ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ°Ð¼Ð¸ Ð½ÐµÑÐºÐ¾Ð»ÑÐºÐ¸Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ñ ÐºÐ¾Ð¾Ð¿ÐµÑÐ°ÑÐ¸Ð¹, ÑÐ°ÐºÐ¸Ñ ÐºÐ°Ðº Ð½ÐµÑÑÑ, Ð¿ÑÐ¸ÑÐ¾Ð´Ð½ÑÐ¹ Ð³Ð°Ð· Ð¸ ÑÐ³Ð¾Ð»Ñ, Ð±ÑÐ»Ð¾ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ, Ð¾Ð±ÑÑÑÐ½ÐµÐ½Ð¸Ðµ ÑÑÐ°ÑÑÑÐ° ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÑÐµÑÑÐ²Ð°, Ð° ÑÐ°ÐºÐ¶Ðµ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¸ ÐºÐ¾Ð¼Ð¼ÐµÐ½ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ.
description: Under the background of "One Belt, One Road", this work reviews the development of energy cooperation between China and Russia by expounding the concept of "Belt and Road", combining the theories of regional economic integration, cooperation and geopolitics, pointing out that the "Belt and Road". The basic conditions for energy cooperation under the framework are compared and illustrated with comments on the status of energy cooperation before and after the âOne Belt and One Roadâ against the analysis and characteristics of major energy corporations such as oil, natural gas and coal.
Lie bialgebra structures on extended Schrodinger-Virasoro Lie algebra
Creators: name: Yuan, Lamei
name: Wu, Yongping
name: Xu, Ying
Publisher: name: arXiv
Year: 2010
Subjects: subject: Rings and Algebras (math.RA)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B05, 17B37, 17B62, 17B68

description: In this paper, Lie bialgebra structures on the extended Schrodinger-Virasoro Lie algebra are classified. It is obtained that all the Lie bialgebra structures on L are triangular coboundary. As a by-product, it is derived that the first cohomology group is trivial.
description: 11 pages
Certifying Global Optimality for the L∞-Norm Computation of Large-Scale Descriptor Systems
Creators: name: Schwerdtner, Paul
name: Mengi, E.
name: Voigt, Matthias
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 500 Naturwissenschaften und Mathematik::510 Mathematik::518 Numerische Analysis
subject: computer-aided control systems design
subject: descriptor systems
subject: eigenvalue problems
subject: H∞ control
subject: linear control systems
subject: norms
subject: numerical algorithms
subject: robust control

description: We present a method for the certification of algorithms that approximate the L∞- or H∞-norm of transfer functions of large-scale (descriptor) systems. This certification is needed because such algorithms depend heavily on user input, and may converge to a local maximizer of the related singular value function leading to an incorrect value, much lower than the actual norm. Hence, we design an algorithm that determines whether a given value is less than the L∞-norm of the transfer function under consideration, and that does not require user input other than the system matrices. In the algorithm, we check whether a certain structured matrix pencil has any purely imaginary eigenvalues by repeatedly applying a structure-preserving shift-and-invert Arnoldi iteration combined with an appropriate shifting strategy. Our algorithm consists of two stages. First, an interval on the imaginary axis which may contain imaginary eigenvalues is determined. Then, in the second stage, a shift is chosen on this interval and the eigenvalues closest to this shift are computed. If none of these eigenvalues is purely imaginary, then an imaginary interval around the shift of appropriate length is removed such that two subintervals remain. This second stage is then repeated on the remaining two subintervals until either a purely imaginary eigenvalue is found or no critical subintervals are left. We show the effectiveness of our method by testing it without any parameter adaptation on a benchmark collection of large-scale systems.
title: Ð§Ð¸ÑÐ»ÐµÐ½Ð½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ¸ Ð¸ ÑÐµÐ¹ÑÐ¼Ð¾ÑÑÐ¾Ð¹ÐºÐ¾ÑÑÐ¸ Ð±ÐµÑÐ¾Ð½Ð½ÑÑ Ð¿Ð»Ð¾ÑÐ¸Ð½ Ð¿ÑÐ¸ Ð´ÐµÐ¹ÑÑÐ²Ð¸Ð¸ ÑÐµÐ¹ÑÐ¼Ð¸ÑÐµÑÐºÐ¸Ñ Ð½Ð°Ð³ÑÑÐ·Ð¾Ðº
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Numerical analysis of concrete dams' reliability and earthquake resistance under seismic loading
Creators: name: ÐÑÐºÐ¾Ð²Ð°, Ð®Ð»Ð¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð±ÐµÑÐ¾Ð½Ð½ÑÐµ Ð³ÑÐ°Ð²Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð¿Ð»Ð¾ÑÐ¸Ð½Ñ
ÑÐµÐ¹ÑÐ¼Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð°Ð½Ð°Ð»Ð¸Ð·
Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ "Ð¿Ð»Ð¾ÑÐ¸Ð½Ð°-Ð²Ð¾Ð´Ð¾Ñ ÑÐ°Ð½Ð¸Ð»Ð¸ÑÐµ-Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ðµ"
ÑÐ°Ð·ÑÑÑÐµÐ½Ð¸Ðµ
abaqus
concrete gravity dams
seismic analysis
dam-reservoir-foundation interaction
damage

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· Ð±ÐµÑÐ¾Ð½Ð½Ð¾Ð¹ Ð³ÑÐ°Ð²Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð¿Ð»Ð¾ÑÐ¸Ð½Ñ Ð¿ÑÐ¸ Ð´ÐµÐ¹ÑÑÐ²Ð¸Ð¸ ÑÐµÐ¹ÑÐ¼Ð¸ÑÐµÑÐºÐ¸Ñ Ð½Ð°Ð³ÑÑÐ·Ð¾Ðº. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° ÐºÐ¾Ð½ÐµÑÐ½Ð¾-ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ, ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐ°Ñ ÑÐ¸ÑÑÐµÐ¼Ðµ Â«Ð¿Ð»Ð¾ÑÐ¸Ð½Ð°-Ð²Ð¾Ð´Ð¾ÑÑÐ°Ð½Ð¸Ð»Ð¸ÑÐµ-Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸ÐµÂ». ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð¿Ð¾Ð´Ð±Ð¾Ñ ÑÐµÐ¹ÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð²Ð¾Ð·Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ. Ð¡ÑÐ°Ð²Ð½ÐµÐ½Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ñ ÑÑÐµÑÐ¾Ð¼ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð»Ð¸Ð½ÐµÐ¹Ð½Ð¾Ð³Ð¾ Ð¸ Ð½ÐµÐ»Ð¸Ð½ÐµÐ¹Ð½Ð¾Ð³Ð¾ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð².
description: This paper is devoted to numerical analysis of concrete gravity dams under seismic loading. The research set the following goals: development of the finite element âdam-reservoir-foundationâ model, selection of seismic loading, comparison of results regarding the influence of linear and non-linear materials.
Exploring the Role of Manufacturing Parameters on Microstructure and Mechanical Properties in Fused Deposition Modeling (FDM) Using PETG
Creators: name: Özen, Arda
name: Abali, Bilen Emek
name: Völlmecke, Christina
name: Gerstel, Jonathan
name: Auhl, Dietmar
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaften::620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: additive manufacturing
subject: homogenization
subject: machine learning
subject: polymers
subject: finite element method
subject: fused deposition modeling
subject: FDM
subject: microstructure

description: Additive manufacturing develops rapidly, especially, fused deposition modeling (FDM) is one of the economical methods with moderate tolerances and high design flexibility. Ample studies are being undertaken for modeling the mechanical characteristics of FDM by using the Finite Element Method (FEM). Even in use of amorphous materials, FDM creates anisotropic structures effected by the chosen manufacturing parameters. In order to investigate these process-related characteristics and tailored properties of FDM structures, we prepare FDM-printed poly(ethylene terephthalate) glycol (PETG) samples with different process parameters. Mechanical and optical characterizations are carried out. We develop 2D-digital-image-correlation code with machine learning algorithm, namely K-means cluster, to analyze microstructures (contact surfaces, the changes in fiber shapes) and calculate porosity. By incorporating these characteristics, we draw CAD images. A digital twin of mechanical laboratory tests are realized by the FEM. We use computational homogenization approach for obtaining the effective properties of the FDM-related anisotropic structure. These simulations are validated by experimental characterizations. In this regard, a systematic methodology is presented for acquiring the anisotropy from the process related inner substructure (microscale) to the material response at the homogenized length scale (macroscale). We found out that the layer thickness and overlap ratio parameters significantly alter the microstructures and thereby, stiffness of the macroscale properties.
Sizes and Temperature Profiles of Quasar Accretion Disks from Chromatic Microlensing
Creators: name: Blackburne, Jeffrey A.
name: Pooley, David
name: Rappaport, Saul
name: Schechter, Paul L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Microlensing perturbations to the flux ratios of gravitationally lensed quasar images can vary with wavelength because of the chromatic dependence of the accretion disk's apparent size. Multiwavelength observations of microlensed quasars can thus constrain the temperature profiles of their accretion disks, a fundamental test of an important astrophysical process which is not currently possible using any other method. We present single-epoch broadband flux ratios for 12 quadruply lensed quasars in eight bands ranging from 0.36 to 2.2 microns, as well as Chandra 0.5--8 keV flux ratios for five of them. We combine the optical/IR and X-ray ratios, together with X-ray ratios from the literature, using a Bayesian approach to constrain the half-light radii of the quasars in each filter. Comparing the overall disk sizes and wavelength slopes to those predicted by the standard thin accretion disk model, we find that on average the disks are larger than predicted by nearly an order of magnitude, with sizes that grow with wavelength with an average slope of ~0.2 rather than the slope of 4/3 predicted by the standard thin disk theory. Though the error bars on the slope are large for individual quasars, the large sample size lends weight to the overall result. Our results present severe difficulties for a standard thin accretion disk as the main source of UV/optical radiation from quasars.
description: 21 pages, 9 tables, 10 figures. Fairly significant changes made to match published version, including the addition of an extra table, and extra figure, and some explanatory text
Parseval Proximal Neural Networks
Creators: name: Hasannasab, Marzieh
name: Hertrich, Johannes
name: Neumayer, Sebastian
name: Plonka, Gerlind
name: Setzer, Simon
name: Steidl, Gabriele
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 500 Naturwissenschaften und Mathematik::510 Mathematik::519 Wahrscheinlichkeiten, angewandte Mathematik
subject: Lipschitz neural networks
subject: averaged operators
subject: proximal operators
subject: frame shrinkage
subject: adverserial robustness
subject: optimization on Stiefel manifolds

description: The aim of this paper is twofold. First, we show that a certain concatenation of a proximity operator with an affine operator is again a proximity operator on a suitable Hilbert space. Second, we use our findings to establish so-called proximal neural networks (PNNs) and stable tight frame proximal neural networks. Let H and K be real Hilbert spaces, b∈K and T∈B(H,K) a linear operator with closed range and Moore–Penrose inverse T†. Based on the well-known characterization of proximity operators by Moreau, we prove that for any proximity operator Prox:K→K the operator T†Prox(T⋅+b) is a proximity operator on H equipped with a suitable norm. In particular, it follows for the frequently applied soft shrinkage operator Prox=Sλ:ℓ2→ℓ2 and any frame analysis operator T:H→ℓ2 that the frame shrinkage operator T†SλT is a proximity operator on a suitable Hilbert space. The concatenation of proximity operators on Rd equipped with different norms establishes a PNN. If the network arises from tight frame analysis or synthesis operators, then it forms an averaged operator. In particular, it has Lipschitz constant 1 and belongs to the class of so-called Lipschitz networks, which were recently applied to defend against adversarial attacks. Moreover, due to its averaging property, PNNs can be used within so-called Plug-and-Play algorithms with convergence guarantee. In case of Parseval frames, we call the networks Parseval proximal neural networks (PPNNs). Then, the involved linear operators are in a Stiefel manifold and corresponding minimization methods can be applied for training of such networks. Finally, some proof-of-the concept examples demonstrate the performance of PPNNs.
«Keine passiven Redekränzchen»: Soziale und organisatorische Experimente in der politischen Kultur der Lehrpersonen(fort)bildung in Zürich um 1918
Creators: name: Hoffmann-Ocon, Andreas
Publisher: name: Zenodo
Year: 2020
Subjects: Lehrerfortbildung
Organisation
Politische Kultur
Volksschule
Selbstwahrnehmung
Bildungspolitik
Praxeologie
Lehrer
Pädagogik

description: Der Beitrag von Andreas Hoffmann-Ocon beschäftigt sich mit der organisationalen Experimentierfreudigkeit in der politischen Kultur
 der Lehrpersonen(fort)bildung in Zürich um 1918 bei gleichzeitiger Angst vor pädagogischen Revolutionen. Angesichts eines durch Debatten zur Bildungsreform geprägten politischen Klimas werden in praxeologisch informierter Perspektive Aushandlungen über den Fortbestand der Schulkapitel – Gremien zur Fortbildung von Volksschullehrpersonen im Kanton Zürich – ins Zentrum gerückt. Besonderes Augenmerk gilt dabei den Kontexten, die Kontinuität und Wandel sowie Stabilität und Fragilität von Lehrerfortbildungskulturen in der als bildungspolitische Krise wahrgenommenen Phase mitbedingten. Auf der Quellenbasis von Schulkapitels- und Lehrpersonenvereins-Protokollen werden alltägliche Praktiken vor allem in den Fortbildungsgremien, aber auch Selbst- und Situationswahrnehmungen von Akteurinnen und Akteuren erschlossen, die gleichzeitig Partizipations- und Pädagogisierungsabsichten gegenüber ihren Kolleginnen und Kollegen hegten. Dabei gilt es, unterschiedliche Gremienorte als „äußerliche Rahmung“ (Wirtshäuser und Schulhäuser) und als miteinander konkurrierende Orte bildungspolitischer Vertretung von Lehrpersonen (Schulkapitel und Lehrervereinigungen) zu beachten. In dieser in den Blick genommenen komplexen Vielfalt vergangenen bildungspolitischen Handelns treten Infragestellungen von Gremienstrukturen in den Vordergrund. Diese Neuperspektivierungen, die neues Wissen generierten, können als Indizien dafür verstanden werden, dass durch gemeinsame Interpretation gestiftete Zusammenhänge und Handlungsroutinen nicht mehr richtig funktionierten. Ob die (ideologischen) Wissens- und Deutungskämpfe zum „Schablonismus“ in der Lehrpersonenbildung und zu den „Grenzen der Erziehung“ sowie überspannten Pädagogisierungsabsichten in der Zeit um 1918 eine Geschwindigkeitssteigerung erfuhren, wird diskutiert.
description: +repphzhbib2020F