cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Abbruch und Rückbau von Plattenbauten aus der Sicht des Gefahrstoffschutzes
Creators: name: Peter, Lutz
Publisher: name: Bauhaus-Universität Weimar
Year: 2005
Subjects: subject: Arbeitsschutz
subject: Baustelle
subject: Gefahrstoff
subject: Stadtsanierung
subject: Abbruch
subject: 620

description: Speziell für die Sandwich-Platten der Außenfassade von DDR-Plattenbauten, die in ihrem Inneren in den meisten Fällen Mineralwolle (Handelsname: Kamilit) enthalten, wurden belastungsarme Abbruch- bzw. Rückbautechnologien untersucht und durch Gefahrstoffmessungen begleitet. Es werden Vorschläge für zukünftig zu bevorzugende Abbruchtechnologien unterbreitet.
description: 4. Fachtagung Sicherheit auf Baustellen: Erfahrung - Arbeitsscherheit - Leistung, p. 59
description: Schriften der Professur Baubetrieb und Bauverfahren, vol. 08, p. 59
Comparison of wavelet and correlation indices of cerebral autoregulation in a pediatric swine model of cardiac arrest
Creators: name: Liu, Xiuyun
name: Hu, Xiao
name: Brady, Ken M.
name: Koehler, Raymond
name: Smielewski, Peter
name: Czosnyka, Marek
name: Donnelly, Joseph
name: Lee, Jennifer K.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Article
/631/378
/692/308
/692/617
article

description: Abstract: Existing cerebrovascular blood pressure autoregulation metrics have not been translated to clinical care for pediatric cardiac arrest, in part because signal noise causes high index time-variability. We tested whether a wavelet method that uses near-infrared spectroscopy (NIRS) or intracranial pressure (ICP) decreases index variability compared to that of commonly used correlation indices. We also compared whether the methods identify the optimal arterial blood pressure (ABPopt) and lower limit of autoregulation (LLA). 68 piglets were randomized to cardiac arrest or sham procedure with continuous monitoring of cerebral blood flow using laser Doppler, NIRS and ICP. The arterial blood pressure (ABP) was gradually reduced until it dropped to below the LLA. Several autoregulation indices were calculated using correlation and wavelet methods, including the pressure reactivity index (PRx and wPRx), cerebral oximetry index (COx and wCOx), and hemoglobin volume index (HVx and wHVx). Wavelet methodology had less index variability with smaller standard deviations. Both wavelet and correlation methods distinguished functional autoregulation (ABP above LLA) from dysfunctional autoregulation (ABP below the LLA). Both wavelet and correlation methods also identified ABPopt with high agreement. Thus, wavelet methodology using NIRS may offer an accurate vasoreactivity monitoring method with reduced signal noise after pediatric cardiac arrest.
In memoriam Siegfried Mattl (1954–2015)
Creators: name: Hauch, Gabriella
name: Müller, Albert
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 2015

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 26 Nr. 2 (2015): Frauen Politik Transformation
Gravitational lensing and wormhole shadows
Creators: name: Bugaev, Mikhail A.
name: Novikov, Igor D.
name: Repin, Serge V.
name: Shelkovnikova, Anna A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The problem of bending and scattering of light rays passing outside from the entrance to a wormhole with zero gravitational mass is considered. The process of ray capture by a wormhole as well as the process of formation of a shadow when illuminated by a standard screen is investigated. These mechanisms are also compared to the case of motion of light rays in the vicinity of the Schwarzschild black hole.
description: 12 pages, 12 figures
Improving Grid Resilience/Reliability with Solid-State Transformers and Dynamic
Creators: B. PIERRE
D. SCHOENWALD
M. HOFFMAN
Publisher: name: IEEE
Year: 2021

2021 ISGT NA Panel Presentation
The goal of this panel session is to present ongoing work at Sandia National Laboratories focused on improving grid resilience and reliability, specifically using Solid-State Transformers and Dynamic Optimization techniques. Three presentations will detail ongoing work and share results for two different multi-year projects. Discussion following the presentations will allow attendees to share ideas and generate possible collaboration opportunities.
Legal aspects of public or crown corporations in Canada
Creators: name: Kimuli, Moses Aldrin
Publisher: name: University of British Columbia
Year: 2010

description: In 1841 Lord Sydenham, as Governor of the United Provinces, established a Board of Works as a separate legal entity to construct a canal system. This was the first public or crown corporation. Since then, there has been a significant increase in the use of the corporate form of enterprise organization and management by the government. However, this marked governmental dependency on the corporate legal form has not been matched by any appreciable inquiry into the legal problems and issues posed and raised by the chosen legal form. This essay attempts to analyse some of those problems and issues. Part One deals with the definition and classification of public corporations as well as the juridical forms that these corporations take. Interest groups, namely, taxpayers, creditors and suppliers of crown corporations, and victims of crown corporation delinquency are also introduced. The substantive legal liability of crown corporations forms the subject of Part Two. Here the contractual and tortious liability of crown corporations as well as their liability for wrongs committed outside their national jurisdiction are considered. The procedural aspects of crown corporation law are treated in Part Three. A basic problem that runs through Parts Two and Three is the dual nature of crown corporations. In substance, crown corporations are public authorities; they are part of the state machinery. In form, crown corporations are approximated to and resemble, private corporations. They enter into contracts and other legal relationships, commit torts and other legal wrongs, just like private corporations do. Since the crown, as the personification of the state, traditionally enjoys a number of substantive and procedural immunities and privileges, it becomes necessary to determine the extent to which crown corporations partake of those immunities and privileges. At the same time there are sound reasons for arguing that crown corporations should be placed in the same position as private corporations, that is, they should not be permitted to shelter behind crown immunities and privileges. The legal duties of those entrusted with the management and administration of crown corporations and the issue of creditor protection are examined in Part Four. The discussion is conducted in the light of the interests of those groups referred to above. Proposals and suggestions are made in the course of the essay. A summary and conclusions appear in Part Five.
A Comparative Study of Laplacians and Schroedinger-Lichnerowicz-Weitzenboeck Identities in Riemannian and Antisymplectic Geometry
Creators: name: Batalin, Igor A.
name: Bering, Klaus
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We introduce an antisymplectic Dirac operator and antisymplectic gamma matrices. We explore similarities between, on one hand, the Schroedinger-Lichnerowicz formula for spinor bundles in Riemannian spin geometry, which contains a zeroth-order term proportional to the Levi-Civita scalar curvature, and, on the other hand, the nilpotent, Grassmann-odd, second-order Δoperator in antisymplectic geometry, which in general has a zeroth-order term proportional to the odd scalar curvature of an arbitrary antisymplectic and torsionfree connection that is compatible with the measure density. Finally, we discuss the close relationship with the two-loop scalar curvature term in the quantum Hamiltonian for a particle in a curved Riemannian space.
description: 55 pages, LaTeX. v2: Subsection 3.10 expanded. v3: Reference added. v4: Published version
Clinical characteristics and outcomes for patients with non‑metastatic castration-resistant prostate cancer
Creators: name: Arnold, Peter
name: Penaloza-Ramos, Maria Cristina
name: Adedokun, Lola
name: Rees, Sarah
name: Lockhat, Mohamed
name: Spary, Lisa
name: Watkins, Alan
name: Gnanapragasam, Vincent
name: Crabb, Simon J.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Article
/631/67/2324
/631/67/589
/631/67/589/466
article

description: Funder: Janssen-Cilag Ltd
description: Abstract: This study used linked, routinely-collected datasets to explore incidence, clinical characteristics and outcomes of prostate cancer (PC) patients who experience a rise in prostate-specific antigen (PSA) levels despite androgen deprivation therapy (ADT), without evidence of metastases in their patient record, termed non-metastatic castration-resistant PC (nmCRPC). Routinely collected administrative data in Wales were used to identify patients diagnosed with PC and nmCRPC from 2000–2015. Logrank tests and Cox proportional hazard models were used to compare time-to-events across subgroups defined by PSA doubling time and age. Of 38,021 patients identified with PC, 1,465 met nmCRPC criteria. PC incidence increased over the study period, while nmCRPC categorizations reduced. Median time from PC diagnosis to nmCRPC categorization was 3.07 years (95% confidence interval [CI] 2.91–3.26) and from nmCRPC categorization to metastases/death was 2.86 years (95% CI 2.67–3.09). Shorter PSA doubling time (≤ 10 months, versus > 10 months) was associated with reduced time to metastases or death (2.11 years [95% CI 1.92–2.30] versus 5.22 years [95% CI 4.87–5.51]). Age was not significantly associated with time to metastases/death. Our findings highlight key clinical characteristics and outcomes for patients with nmCRPC prior to the introduction of recently approved treatments.
Measuring correlated electron dynamics with time-resolved photoemission spectroscopy
Creators: name: Eckstein, Martin
name: Kollar, Marcus
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Time-resolved photoemission experiments can reveal fascinating quantum dynamics of correlated electrons. However, the thermalization of the electronic system is typically so fast that very short probe pulses are necessary to resolve the time evolution of the quantum state, and this leads to poor energy resolution due to the energy-time uncertainty relation. Although the photoemission intensity can be calculated from the nonequilibrium electronic Green functions, the converse procedure is therefore difficult. We analyze a hypothetical time-resolved photoemission experiment on a correlated electronic system, described by the Falicov-Kimball model in dynamical mean-field theory, which relaxes between metallic and insulating phases. We find that the real-time Green function which describes the transient behavior during the buildup of the metallic state cannot be determined directly from the photoemission signal. On the other hand, the characteristic collapse-and-revival oscillations of an excited Mott insulator can be observed as oscillating weight in the center of the Mott gap in the time-dependent photoemission spectrum.
description: 12 pages, 5 figures
Emerging IoT and Blockchain Technologies for Power System Operation and Control
Creators: L. XIE
B. YANG
Y. XIANG
M. MORALES-RODRIGUEZ
Publisher: name: IEEE
Year: 2021

2021 ISGT NA Panel Presentation
As a rapidly increasing number of distributed resources (e.g., controllable loads, DERs, energy storages, etc.) are being deployed in power systems, their values and impacts on the electric power systems, especially from the perspectives of operation and control, remain to be explored. Particularly, IoT and Blockchain technologies have enabled the distributed resources to participate in power system operation and control as transactive energy, serving both the grids and customers. This panel session aims to discuss the emerging IoT and Blockchain technologies and their applications in modern power systems that could bring remarkable benefits to the smart grid. Specifically, the discussion will focus on how these technologies are applied in terms of power system control. We will explore these technologies from both industrial and academic points of view, discuss how they are improving and motivating the smart grid development, as well as emerging challenges from actual engineering cases and their solutions. The proposed session will include four presentations, followed by a Q&A after each presentation, and an open panel discussion
3D printed customised external cranial plate in a patient with syndrome of trephined: ‘a case report’
Creators: name: H., Mee
name: S., Greasley
name: G., Whiting
name: C., Harkin
name: G., Oliver
name: D., Marsden
name: R., Andrews
name: S., Sireau
name: RD., Price
name: F., Anwar
name: IS., Timofeev
name: PJ., Hutchinson
name: PA., White
name: A., Helmy
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Case Report

description: Abstract: Background: Syndrome of the trephined is a well-recognised phenomenon that occurs in patients following a craniectomy. It is associated with several symptoms, including headaches, motor impairments, cognitive disorders and reduced consciousness. Treatment for the syndrome usually involves replacing the skull defect. Case Study: A 71-year-old male underwent a left-sided craniectomy after being diagnosed with biopsy-confirmed invasive squamous cell carcinoma with associated skull erosion. Subsequently, he developed a severe case of syndrome of the trephined (SoT,) resulting in having to lie flat to prevent the motor component of the Glasgow Coma Score (GCS) falling from M5/6 (E3/4 Vt M5/6) to M1 (E3/4 Vt M1) on sitting to 30 degrees. Unfortunately, due to ongoing chest sepsis and physical frailty, he was unable to undergo a cranioplasty. Therefore, to aid in clinical stabilisation, the treating physicians and clinical engineering teams designed and manufactured a prosthesis on-site, allowing rapid patient treatment. The prosthesis led to the patient being able to sit up to 30 degrees without the motor component of the GCS falling from M6 to M1 (E4 VT M6). Conclusion: Clinical improvements were demonstrated with definitive neurological improvement after applying the external cranial plate in clinical outcome measures and radiographically. Furthermore, we have shown that rapid prototyping technology provides a flexible solution to synthesise bespoke medical prostheses with the correct expertise and regulatory framework.
Cybersecurity Verification & Validation Testing for Energy Delivery Systems – Stakeholder Perspectives and Technical Approaches
Creators: S. MIX
N. WALLACE
D. ISHCHENKO
Publisher: name: IEEE
Year: 2021

2021 ISGT NA Panel Presentation
As the complexity and connectivity of energy delivery systems (EDS) increase, the associated cybersecurity requirements to ensure their safe and reliable operation also increases. Therefore, it becomes extremely critical to perform a thorough verification and validation (V&V) of EDS products that help monitor, operate, and control our critical U.S. energy infrastructure. A securely developed and appropriately tested product can enhance the security, reliability and resilience of the overall system, and ensure its ability to withstand and survive sophisticated cyber threats. There are a few operational standards like NERC CIP that address cybersecurity aspects in bulk electric system (BES) operations. However, there seems to be a lack of a widely accepted, cybersecurity-focused V&V framework that can be adopted from the beginning of a product’s lifecycle to effectively develop and test the cybersecurity of the operational technology equipment used in the electricity infrastructure, which includes BES as well as distribution systems. In this panel, we intend to bring together a panel of subject matter experts representing the product vendors, energy utilities, and national labs. Each of the panelists being key energy sector stakeholders will talk about their unique perspectives on the needs, opportunities, technical approaches, and available resources such as standards, tools, and techniques for cybersecurity V&V testing of energy delivery systems. We anticipate our panel to provide a synthesis of much needed and valuable technical information on this critical and important topic to advance the overall cybersecurity and reliability of EDS.
Distributed Secondary Control of a Microgrid With a Generalized PI Finite-Time Controller
Creators: Yuanshi Zhang
Amin Mohammadpour Shotorbani
Liwei Wang
and Behnam Mohammadi-Ivatloo
Publisher: name: IEEE
Year: 2021

This paper proposes a novel distributed secondary controller for droop-controlled microgrids to regulate the frequency and voltage, and autonomously share the power mismatch.
This paper proposes a novel distributed secondary controller for droop-controlled microgrids to regulate the frequency and voltage, and autonomously share the power mismatch. The proposed scheme is entitled generalized proportional-integral finite-time controller (GPI-FTC). The proposed GPI-FTC is synthesized based on the control Lyapunov function method and modifying the conventional PI controller by adding a consensus term to the integrand dynamic. The proposed distributed GPI-FTC provides plug-n-play capability, scalability, and fast finite-time convergence of the system states. Moreover, a reactive power sharing (Q-sharing) method is designed to improve the sharing pattern of reactive power under exact voltage regulation. Also, a distributed voltage observer is developed for average voltage regulation. Performance of the proposed GPI-FTC is validated through numerical simulations of the detailed model of the microgrid, including small signal analysis, load change, DG outage, Q-sharing, and performance comparison.
Surface science using coupled cluster theory via local Wannier functions and in-RPA-embedding: the case of water on graphitic carbon nitride
Creators: name: Schäfer, Tobias
name: Gallo, Alejandro
name: Irmler, Andreas
name: Hummel, Felix
name: Grüneis, Andreas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A first-principles study of the adsorption of a single water molecule on a layer of graphitic carbon nitride employing an embedding approach is presented. The embedding approach involves an algorithm to obtain localized Wannier orbitals of various types expanded in a plane-wave basis and intrinsic atomic orbital projectors. The localized occupied orbitals are employed in combination with unoccupied natural orbitals to perform many-electron perturbation theory calculations of local fragments. The fragments are comprised of a set of localized orbitals close to the adsorbed water molecule. Although the surface model contains more than 100 atoms in the simulation cell, the employed fragments are small enough to allow for calculations using high-level theories up to the coupled cluster ansatz with single, double and perturbative triple particle-hole excitation operators (CCSD(T)). To correct for the missing long-range correlation energy contributions to the adsorption energy, we embed CCSD(T) theory into the direct random phase approximation, yielding rapidly convergent adsorption energies with respect to the fragment size. Convergence of computed binding energies with respect to the virtual orbital basis set is achieved employing a number of recently developed techniques. Moreover, we discuss fragment size convergence for a range of approximate many-electron perturbation theories. The obtained benchmark results are compared to a number of density functional calculations.
description: 12 pages, 7 figures
title: Schadstoffproblematik beim Umbau der Anna-Amalia-Bibliothek Weimar
Creators: name: Henke, Torsten
Publisher: name: Bauhaus-Universität Weimar
Year: 2005
Subjects: subject: Arbeitsschutz
subject: Baustelle
subject: Gefahrstoff
subject: Stadtsanierung
subject: 620

description: Sieben Bestandsbauten der Herzogin-Anna-Amalia-Bibliothek Weimar sollten umgenutzt und durch zwei oberirdische und drei unterirdische Neubauten ergänzt werden. Im Beitrag näher beschrieben: Schadstofferkundung und Beurteilung der Gefahren der Baumaßnahmen, Sicherheitsmaßnahmen, Durchführung von Reinigungsarbeiten
description: 4. Fachtagung Sicherheit auf Baustellen: Erfahrung - Arbeitsscherheit - Leistung, p. 55
description: Schriften der Professur Baubetrieb und Bauverfahren, vol. 08, p. 55
Fractons in effective field theories for spontaneously broken translations
Creators: name: Argurio, Riccardo
name: Hoyos, Carlos
name: Musso, Daniele
name: Naegels, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the concomitant breaking of spatial translations and dilatations in Ginzburg-Landau-like models, where the dynamics responsible for the symmetry breaking is described by an effective Mexican hat potential for spatial gradients. We show that there are fractonic modes with either subdimensional propagation or no propagation altogether, namely, immobility. Such class of effective field theories encompasses instances of helical superfluids and meta-fluids, where fractons can be connected to an emergent symmetry under higher moment charges, leading in turns to the trivialization of some elastic coefficients. The introduction of a finite charge density alters the mobility properties of fractons and leads to a competition between the chemical potential and the superfluid velocity in determining the gap of the dilaton. The mobility of fractons can also be altered at zero density upon considering additional higher-derivative terms.
description: 47 pages, 5 figures and 2 tables
An alternative to the concept of continuous medium
Creators: name: Caltagirone, Jean-Paul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Discrete mechanics proposes an alternative formulation of the equations of mechanics where the Navier-Stokes and Navier-Lamé equations become approximations of the equation of discrete motion. It unifies the fields of fluid and solid mechanics by extending the fields of application of these equations to all space and time scales. This article presents the essential differences induced by the abandonment of the notion of continuous medium and global frame of reference. The results of the mechanics of continuous medium validated by fluid and solid observations are not questioned. The concept of continuous medium is not invalidated, the discrete formulation proposed simply widens the spectrum of the applications of the classical equations. The discrete equation of motion introduces several important modifications, in particular the fundamental law of the dynamics on an element of volume becomes a law of conservation of the accelerations on an edge. The acceleration considered as an absolute quantity is written as a sum of two components, one soledoidal the other irrotational according to a local orthogonal Helmholtz-Hodge decomposition. The mass is abandoned and replaced by the compression and rotation energies represented by the scalar and vectorial potentials of the acceleration. The equation of motion and all the physical parameters are expressed only with two fundamental units, those of length and time. The essential differences between the two approaches are listed and some of them are discussed in depth. This is particularly the case with the known paradoxes of the Navier-Stokes equation or the importance of inertia for the Navier-Lamé equation.
description: 16 pages, 5 figures
title: Alle Jahre wieder: Hitzearbeit im Freien
Creators: name: Steinmetzger, Rolf
Publisher: name: Bauhaus-Universität Weimar
Year: 2005
Subjects: subject: Arbeitsschutz
subject: Baustelle
subject: Hitzebelastung
subject: Arbeitsstättenverordnung
subject: Baustelleneinrichtung
subject: 620

description: Der Verfasser betrachtet die Einflüsse sommerlicher Belastungen auf Bauarbeiter durch direkte Sonneneinstrahlung, Hitze und Ozon, die bisher zu wenig Beachtung finden.
description: 4. Fachtagung Sicherheit auf Baustellen: Erfahrung - Arbeitsscherheit - Leistung, p. 35
description: Schriften der Professur Baubetrieb und Bauverfahren, vol. 08, p. 35
Serverless GEO Labels for the Semantic Sensor Web
Creators: name: Nüst, Daniel
name: Graupner, Anika
Publisher: name: Zenodo
Year: 2020
Subjects: GEO label
SSNO
Semantic Web
serverless computing

description: Workflow code, computing environment, and visualisation app for preprint "Serverless GEO Labels for the Semantic Sensor Web". Sources: https://gitlab.com/nuest/geolabel-ssno-paper Preprint: https://doi.org/10.20944/preprints202002.0326.v1
Advanced Computational Methods and Tools for Power System Resilience Analysis
Creators: M. VAIMAN
N. DUAN
R. YAO
Publisher: name: IEEE
Year: 2021

2021 ISGT NA Panel Presentation
Due to the challenges of natural disasters, growing system loading levels and increasing penetration of variable generation resources in the power system, power system resilience is more and more important. The resilience assessment and decision support pose various challenges in terms of interdependency modeling, computational efficiency and scalability, uncertainty quantification, etc. This panel will introduce novel computation methods and tools for resilience analysis and discuss how they could be utilized into the system operations and planning for routine resilience analysis. The panelists will deliver diversified presentations that cover important issues regarding power system resilience, such as situational awareness, online security analysis, new robust computational approaches and tools and interdependency between power systems with other energy systems.
Database For Studying Edge-on Galaxies
Creators: name: Makarov, D. I.
name: Antipova, A. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a database created within the project on studying edge-on galaxies. These galaxies provide a unique opportunity to study the three-dimensional distribution of the matter in galaxy disks, which is extremely important for analyzing the influence of internal and external factors on the evolution of galaxies. For the moment, extensive observed material has been accumulated on the kinematics and photometry of such galaxies. The database is designed to organize information, make it easier to visualize, and to improve works on studying this type of objects. The database combines information from previous catalogs on edge-on galaxies and data from current projects; provides access to astrometric and photometric data; carries out interconnection with other databases. The present paper describes the structure and web-access to the database: https://www.sao.ru/edgeon/
description: 17 pages, 4 figures, published in the Astrophysical Bulletin. Russian version: 2021, Astrophysical Bulletin, vol 72, pp.273--284, https://www.sao.ru/Doc-k8/Science/Public/Bulletin/Vol76/N2/ASPB273.pdf The Edge-on Galaxy Database: https://www.sao.ru/edgeon/
title: Front Matter, Table of Contents, Preface, Conference Organization
Creators: name: Muñoz-Velasco, Emilio
name: Ozaki, Ana
name: Theobald, Martin
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2020
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Conference Organization
subject: Theory of computation → Logic
subject: Information systems → Temporal data
subject: Computing methodologies → Knowledge representation and reasoning

description: Front Matter, Table of Contents, Preface, Conference Organization
description: LIPIcs, Vol. 178, 27th International Symposium on Temporal Representation and Reasoning (TIME 2020), pages 0:i-0:xiv
title: Sicher arbeiten mit Kränen durch Simulation und Visualisierung
Creators: name: Kath, Thilo
Publisher: name: Bauhaus-Universität Weimar
Year: 2005
Subjects: subject: Arbeitsschutz
subject: Baustelle
subject: Baubetriebslehre
subject: Simulation
subject: Visualisierung
subject: Kran
subject: 620

description: Bestimmungen und Anforderungen an den Entwurf von Baustelleneinrichtungen (BE), Kraneinsatzplan als Bestandteil der BE, planungstechnische Aspekte, Untersuchung von CAD-Anwendungen für die Planung von Baustelleneinrichtungen, Entwicklung eines Kraneinsatzplaners, Sicherheitsaspekte bei der Planung von Baukraneinsätzen. Es zeigte sich, dass gerade die Forderung der Betrachtung kausaler und räumlicher Abhängigkeiten mit den in der Praxis angewandten Planungswerkzeugen nicht oder nur eingeschränkt realisierbar ist. Mit dem Programm >EasyCrane TK< wird eine Möglichkeit aufgezeigt, die Erstellung von Kraneinsatzplänen effizienter und für die Umsetzung auf der Baustelle sicherer zu gestalten.
description: 4. Fachtagung Sicherheit auf Baustellen: Erfahrung - Arbeitsscherheit - Leistung, p. 29
description: Schriften der Professur Baubetrieb und Bauverfahren, vol. 08, p. 29
editorial: philanthropie und sozialstaat
Creators: name: Matter, Sonja
name: Ruoss, Matthias
name: Studer, Brigitte
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 2015

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 26 Nr. 3 (2015): Philantropie und Sozialstaat
Bulk Electric Power System Risks From Coordinated Edge Devices
Creators: Richard Kenyon
Jeff Maguire
Elaina Present
Dane Christensen
and Bri-Mathias Hodge
Publisher: name: IEEE
Year: 2021

As smart load adoption grows on the electric power system, potential for losing load diversity increases, possibly in ways that impact system stability. We study the resulting impacts of such a perturbation, which were previously recognized, with improved fidelity and granularity using a physically-based power system and demand model.
As smart load adoption grows on the electric power system, potential for losing load diversity increases, possibly in ways that impact system stability. Cloud computing resources are able to coordinate large amounts of behind-the-meter loads and resources. Inadvertent or malicious actions could potentially result in gigawatts of load, distributed across large regions, acting nearly simultaneously. We study the resulting impacts of such a perturbation, which were previously recognized, with improved fidelity and granularity using a physically-based power system and demand model. The ResStock tool was used to calculate residential air conditioning load at more than 3,000 locations across the Western Interconnection, corresponding in time to heavy summer and light spring loading. Under an assumption that one cloud platform managed smart thermostats controlling 10%, 15%, or 20% of residential air-conditioning, calculated load steps could be injected into Positive Sequence Load Flow dynamic simulations. These load-driven effects were coupled with two classes of distributed generation ride-through to evaluate the potential for cascading outages. We found frequency deviations in the spring case far exceed the credible contingency event, leading to widespread distributed generation loss, while voltage depressions during the summer loading lead to widespread distributed generation loss and system separation.
Emerging IoT and Blockchain Technologies for Power System Operation and ControlOperational, Regulatory and Policy Needs to Facilitate Cost Effective Integration of Large-scale Renewables
Creators: Sebastian Libonatti
Jenny Erwin
Neil Millar
Eric Vandenberg
Publisher: name: IEEE
Year: 2021

2021 ISGT NA Plenary Presentation
To foster sustainable, low-emission development, many states across the US are establishing ambitious renewable energy targets for their electricity supply. Because of the intermittent nature of renewable energy sources and how widely dispersed they are across the country, meeting these targets will involve significant changes to power system planning and operations.

Robust integration methods maximize the cost effectiveness of incorporating variable renewable energy into the power system while maintaining or increasing system stability and reliability.

Scaling up variable renewable energy generation requires grid expansion and upgrades so that power systems can access high-quality solar and wind resources. A well-crafted combination of policies, rules, and procedures encourages investment in large-scale transmission expansion. These measures not only improve the utilization of variable renewable energy, but also potentially defer the need for network refurbishment. The scope of this panel includes, but not limited to:

Assessing policy needs to facilitate Interregional Transmission Lines
Assessing policy and technological needs to facilitate Offshore Wind interconnection
Lessons Learned from RTOs/ISOs in implementation of FERC order no. 1000
FERC revision to electric transmission incentive policy to enable utility adoption of Grid Efficiency Technologies (e.g. FACTS)
Thermal WIMPs and the scale of new physics: global fits of Dirac dark matter effective field theories
Creators: name: Athron, Peter
name: Kozar, Neal Avis
name: Balázs, Csaba
name: Beniwal, Ankit
name: Bloor, Sanjay
name: Bringmann, Torsten
name: Brod, Joachim
name: Chang, Christopher
name: Cornell, Jonathan M.
name: Farmer, Ben
name: Fowlie, Andrew
name: Gonzalo, Tomás E.
name: Handley, Will
name: Kahlhoefer, Felix
name: Kvellestad, Anders
name: Mahmoudi, Farvah
name: Prim, Markus T.
name: Raklev, Are
name: Renk, Janina J.
name: Scaffidi, Andre
name: Scott, Pat
name: Stöcker, Patrick
name: Vincent, Aaron C.
name: White, Martin
name: Wild, Sebastian
name: Zupan, Jure
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Regular Article - Theoretical Physics

description: Abstract: We assess the status of a wide class of WIMP dark matter (DM) models in light of the latest experimental results using the global fitting framework GAMBIT. We perform a global analysis of effective field theory (EFT) operators describing the interactions between a gauge-singlet Dirac fermion and the Standard Model quarks, the gluons and the photon. In this bottom-up approach, we simultaneously vary the coefficients of 14 such operators up to dimension 7, along with the DM mass, the scale of new physics and several nuisance parameters. Our likelihood functions include the latest data from Planck, direct and indirect detection experiments, and the LHC. For DM masses below 100 GeV, we find that it is impossible to satisfy all constraints simultaneously while maintaining EFT validity at LHC energies. For new physics scales around 1 TeV, our results are influenced by several small excesses in the LHC data and depend on the prescription that we adopt to ensure EFT validity. Furthermore, we find large regions of viable parameter space where the EFT is valid and the relic density can be reproduced, implying that WIMPs can still account for the DM of the universe while being consistent with the latest data.
Visitors to the International Penitentiary Congress
Creators: name: Leonards, Chris
Publisher: name: Austrian Journal of Historical Studies
Year: 2015

description: This contribution looks at foreign visitors and organisers of a selection of penitentiary congress sessions between 1880 and 1910. Using lists of members from the congress proceedings, it seeks to assess the relative importance of civil society and governmental visitors at the penitentiary congress sessions, seen as an emerging expert plat- form of private and public stakeholders in social welfare. Several empirical approaches towards a clear division between public and private stakeholders are presented, experimentally using networking-, named entity recognition- and visualisation techniques. The article argues that in the historical context of the penitentiary congress a clear antithetical division of public and private stakeholders is difficult to sustain. Instead it proposes a more dynamic characterisation of the penitentiary congress visitors where, gradually by the turn of the century, elements of the philanthropic and governmental merge into the hybrid type of the all-round penitentiary expert, well connected to governmental circles and well-versed in philanthropic considerations.
description: Austrian Journal of Historical Studies, Bd. 26 Nr. 3 (2015): Philantropie und Sozialstaat
Spectral and scattering theory for space-cutoff $P(φ)_{2}$ models with variable metric
Creators: name: Gérard, Christian
name: Panati, Annalisa
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider space-cutoff $P(φ)_{2}$ models with a variable metric of the form \[ H= \d\G(ω)+ \int_{\rr}g(x):P(x, φ(x)):\d x, \] on the bosonic Fock space $L^{2}(\rr)$, where the kinetic energy $ω= h^{\12}$ is the square root of a real second order differential operator \[ h= Da(x)D+ c(x), \] where the coefficients $a(x), c(x)$ tend respectively to 1 and $m_{\infty}^{2}$ at $\infty$ for some $m_{\infty}>0$. The interaction term $\int_{\rr}g(x):P(x, φ(x)):\d x$ is defined using a bounded below polynomial in $λ$ with variable coefficients $P(x, λ)$ and a positive function $g$ decaying fast enough at infinity. We extend in this paper the results of \cite{DG} where $h$ had constant coefficients and $P(x, λ)$ was independent of $x$. We describe the essential spectrum of $H$, prove a Mourre estimate outside a set of thresholds and prove the existence of asymptotic fields. Our main result is the {\em asymptotic completeness} of the scattering theory, which means that the CCR representation given by the asymptotic fields is of Fock type, with the asymptotic vacua equal to bound states of $H$. As a consequence $H$ is unitarily equivalent to a collection of second quantized Hamiltonians. An important role in the proofs is played by the {\em higher order estimates}, which allow to control powers of the number operator by powers of the resolvent. To obtain these estimates some conditions on the eigenfunctions and generalized eigenfunctions of $h$ are necessary. We also discuss similar models in higher space dimensions where the interaction has an ultraviolet cutoff.
The international law of shared natural resources : a case study of an international wildlife range between Alaska and the Yukon
Creators: name: Banks, Nigel David
Publisher: name: University of British Columbia
Year: 2010

description: Proposals have been made for the creation of an international wildlife range between Alaska and Yukon Territory, and for an international convention between Canada and the United States to protect the Porcupine Caribou herd. It is suggested that these developments do not take place in a legal void. General ideas of cooperation derived from theories of interdependence, liberal jurists and advocates of world government are insufficient to oblige neighbouring states to undertake specific action. This thesis, therefore, concentrates on the procedural obligations upon neighbouring states to cooperate in the exploitation and conservation of shared natural resources. It is suggested that general principles may be derived from several natural resource regimes international river basins, transfrontier pollution and straddling deposits of hydrocarbons. These specific regimes are supported by the work of the United Nations Environment Programme on natural resources shared by two or more states, and trends discernible in the general international law applicable to wildlife. In each regime the legal status of several principles is considered. For example, is there a duty to notify other states of plans to exploit a resource which may substantially affect the interests of that state? Is there a duty to exchange information and consult and negotiate in respect of the shared resource? The strongest support for these principles is found in the international river basin regime, although, in many cases a strong state practice is present though a sense of obligation on the part of states is lacking. In many cases considerable reliance is placed on state treaty practice as a source of customary law, and on the writings and deliberations of highly qualified groups of specialist jurists. The general principles derived from these resource regimes and the UNEP studies may be applied to the two proposals for the Northern Yukon to suggest that the United States of America and Canada are under some obligation to cooperate in respect of their shared resources.
Molecules with ALMA at Planet-forming Scales (MAPS) IV: Emission Surfaces and Vertical Distribution of Molecules
Creators: name: Law, Charles J.
name: Teague, Richard
name: Loomis, Ryan A.
name: Bae, Jaehan
name: Öberg, Karin I.
name: Czekala, Ian
name: Andrews, Sean M.
name: Aikawa, Yuri
name: Alarcón, Felipe
name: Bergin, Edwin A.
name: Bergner, Jennifer B.
name: Booth, Alice S.
name: Bosman, Arthur D.
name: Calahan, Jenny K.
name: Cataldi, Gianni
name: Cleeves, L. Ilsedore
name: Furuya, Kenji
name: Guzmán, Viviana V.
name: Huang, Jane
name: Ilee, John D.
name: Gal, Romane Le
name: Liu, Yao
name: Long, Feng
name: Ménard, François
name: Nomura, Hideko
name: Pérez, Laura M.
name: Qi, Chunhua
name: Schwarz, Kamber R.
name: Soto, Daniela
name: Tsukagoshi, Takashi
name: Yamato, Yoshihide
name: Hoff, Merel L. R. van't
name: Walsh, Catherine
name: Wilner, David J.
name: Zhang, Ke
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Molecules with ALMA at Planet-forming Scales (MAPS) Large Program provides a unique opportunity to study the vertical distribution of gas, chemistry, and temperature in the protoplanetary disks around IM Lup, GM Aur, AS 209, HD 163296, and MWC 480. By using the asymmetry of molecular line emission relative to the disk major axis, we infer the emission height ($z$) above the midplane as a function of radius ($r$). Using this method, we measure emitting surfaces for a suite of CO isotopologues, HCN, and C$_2$H. We find that $^{12}$CO emission traces the most elevated regions with $z/r > 0.3$, while emission from the less abundant $^{13}$CO and C$^{18}$O probes deeper into the disk at altitudes of $z/r \lesssim 0.2$. C$_2$H and HCN have lower opacities and SNRs, making surface fitting more difficult, and could only be reliably constrained in AS 209, HD 163296, and MWC 480, with $z/r \lesssim 0.1$, i.e., relatively close to the planet-forming midplanes. We determine peak brightness temperatures of the optically thick CO isotopologues and use these to trace 2D disk temperature structures. Several CO temperature profiles and emission surfaces show dips in temperature or vertical height, some of which are associated with gaps and rings in line and/or continuum emission. These substructures may be due to local changes in CO column density, gas surface density, or gas temperatures, and detailed thermo-chemical models are necessary to better constrain their origins and relate the chemical compositions of elevated disk layers with those of planet-forming material in disk midplanes. This paper is part of the MAPS special issue of the Astrophysical Journal Supplement.
description: 31 pages, 20 figures, accepted for publication in ApJS, MAPS cross-references updated
Distributed Mixed Voltage Angle and Frequency Droop Control of Microgrid Interconnections With Loss of Distribution-PMU Measurements
Creators: S. Sivaranjani
Etika Agarwal
Vijay Gupta
Panos Antsaklis
and Le Xie
Publisher: name: IEEE
Year: 2020

In this paper, we propose a novel distributed mixed voltage angle and frequency droop control (D-MAFD) framework to improve the reliability of angle droop controlled microgrid interconnections.
Recent advances in distribution-level phasor measurement unit (D-PMU) technology have enabled the use of voltage phase angle measurements for direct load sharing control in distribution-level microgrid interconnections with high penetration of renewable distributed energy resources (DERs). In particular, D-PMU enabled voltage angle droop control has the potential to enhance stability and transient performance in such microgrid interconnections. However, these angle droop control designs are vulnerable to D-PMU angle measurement losses that frequently occur due to the unavailability of a global positioning system (GPS) signal for synchronization. In the event of such measurement losses, angle droop controlled microgrid interconnections may suffer from poor performance and potentially lose stability. In this paper, we propose a novel distributed mixed voltage angle and frequency droop control (D-MAFD) framework to improve the reliability of angle droop controlled microgrid interconnections. In this framework, when the D-PMU phase angle measurement is lost at a microgrid, conventional frequency droop control is temporarily used for primary control in place of angle droop control to guarantee stability. We model the microgrid interconnection with this primary control architecture as a nonlinear switched system and design distributed secondary controllers to guarantee stability of the network. Further, we incorporate performance specifications such as robustness to generation-load mismatch and network topology changes in the distributed control design. We demonstrate the performance of this control framework by simulation on a test 123-feeder distribution network.
100% Sustainable Electricity in the Faroe Islands: Expansion Planning Through Economic Optimization
Creators: Helma Maria Tróndheim
Bárður A. Niclasen
Terji Nielsen
Filipe Faria da Silva
and Claus Leth Bak
Publisher: name: IEEE
Year: 2021

This study has analysed the energy balance of the future Faroese power system using Balmorel.
SEV, the Faroese Power Company, has a vision to reach a 100% renewable power system by 2030. SEV is committed to achieve this, starting from a 41% share of renewables in 2019. A detailed expansion plan for the generation, storage and transmission is needed to reach this goal. This is the focus of this study. Practical constrains e.g. resource potential and available space must be considered. Balmorel, an optimisation tool, has been used to optimise investments and dispatch. A method to translate optimal results to a realistic RoadMap was developed and applied. The impact of different technologies and costs has been investigated through multiple scenarios. In ratios of average consumption in 2030, installed power will be 224% wind, 105% solar with 8-9 days of pumped hydro storage according to the proposed RoadMap. The plan is economically favorable up to 87% of renewables, but in order to reach a 100% renewable production in an average weather year, the renewable generation capacity has to be increased by 80%. The study also shows that if biofuels or tidal technologies become viable, these will be game changers needing a significantly lower total sum of installed renewable power.