cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Eine Quelle für die Interferometrie mit Bose-Einstein-Kondensaten auf Höhenforschungsraketen
Creators: name: Seidel, Stephan Tobias
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Bose-Einstein condensation
subject: micro gravity research
subject: atom interferometry
subject: Bose-Einstein-Kondensation
subject: Weltraumforschung
subject: Materiewelleninterferometrie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Zum Ermüdungsverhalten von Stumpfnahtverbindungen bei sehr hohen Lastwechselzahlen
Creators: name: Steppeler, Stefanie
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Welded joints
subject: steel
subject: fatigue tests
subject: very high cycle fatigue (VHCF)
subject: SN-curve
subject: test frequency
subject: stress ratio
subject: Schweißverbindungen
subject: Stahl
subject: Ermüdungsversuche
subject: sehr hohe Lastwechselzahlen
subject: Wöhlerlinie
subject: Prüffrequenz
subject: Spannungsverhältnis
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Grobstruktursimulationen zur Untersuchung des Einflusses von Landoberflächenheterogenitäten auf die Struktur der konvektiven Grenzschicht sowie Analyse der Repräsentativität von Turbulenzmessungen
Creators: name: Sühring, Matthias
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Atmospheric boundary layer
subject: large-eddy simulation
subject: surface heterogeneity
subject: Atmosphärische Grenzschicht
subject: Grobstruktursimulation
subject: Oberflächenheterogenität
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: [no abstract]
Assessment of the structure, conduct and performance of Scotland’s onshore wind, offshore wind and hydrogen sectors
Creators: name: Almqvist, Mattias
name: Parker, Robin
name: O’Gorman, Stefanie
name: Pritchard, Adam
name: Jones, Aimee
name: Nyström, Sofia
Publisher: name: Ramboll
Year: 2023
Subjects: Onshore
offshore
wind
hydrogen
green economy
Scotland

description: This report provides economic insights into the onshore wind, offshore wind and hydrogen sectors in Scotland.
Magnetic polarisation effects of temperature sensors and heaters in LISA Pathfinder
Creators: name: Sanjun, J.
name: Lobo, A.
name: Nofrarias, M.
name: Ramos-Castro, J.
name: Mateos, N.
name: Xirgu, X.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2009
Subjects: subject: LISA Technology Package
subject: LTP
subject: negative temperature coefficient
subject: NTC
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Temperature sensors and heaters belong in the diagnostics subsystem of the LISA Technology Package (LTP) on board LISA Pathfinder, the technology demonstrator for LISA. A number of these diagnostics items are placed at short distances from the LTP proof masses, and are negative temperature coefficient (NTC) thermistors. By design, these devices have tiny amounts of ferromagnetic materials which therefore constitute a potential source of disturbance to the performance of the LTP. We present a detailed magnetic characterisation of the NTC's, and use the data to evaluate their impact on the acceleration noise budget of the LTP. The effect is seen to be small, and can be further reduced if the NTC's are submitted to a demagnetisation process before they are attached. Re-magnetisation is unlikely, as rather strong fields (mili-Tesla) are required to re-magnetise the NTC's.
Towards an improved magnetic diagnostic system for LISA
Creators: name: Mateos, I.
name: Lobo, A.
name: Ramos-Castro, J.
name: Sanjun, J.
name: Nofrarias, M.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2009
Subjects: subject: LISA Technology Package
subject: LTP
subject: LISA Pathfinder
subject: LPF
subject: AMR
subject: Anisotropic Magnetoresistive
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The current design, and material implementation of the magnetic field sensing in the LISA Technology Package (LTP) on board LISA Pathfinder (LPF), is based on a set of 4 high-precision 3-axis fluxgate magnetometers. In order to avoid magnetic disturbances on the LTP proof masses (TM 's), originated by the sensors themselves, these are placed somewhat far from the TM's, which results in partial field information losses. We are currently investigating alternative magnetic sensing techniques, based on AMR (Anisotropic Magnetoresistive) devices. These are much smaller in size than fluxgates, therefore a more numerous array can be thought of for flight. In addition, there is a chance that they may be attached closer to the TM's, thereby enhancing magnetic field sensing spacial resolution. Several issues need to be addressed, such as real sensitivity (including electronics noise) and set/reset trigger procedures. A brief overview about the stability of the magnetic fields and gradients generated in the LTP by means of the coil will also be given. This paper show the latest results of our research.
OSCAR a Matlab based optical FFT code
Creators: name: Degallaix, J.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2010
Subjects: subject: Codes (symbols)
subject: Computer software
subject: Electric fields
subject: Fast Fourier transforms
subject: Interferometers
subject: Laser interferometry
subject: Mirrors
subject: Smart cards
subject: Diffraction loss
subject: Eigen modes
subject: Graphic cards
subject: Laser interferometer
subject: Optical cavities
subject: Optical simulation
subject: Ring cavities
subject: Steady state
subject: MATLAB
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Optical simulation softwares are essential tools for designing and commissioning laser interferometers. This article aims to introduce OSCAR, a Matlab based FFT code, to the experimentalist community. OSCAR (Optical Simulation Containing Ansys Results) is used to simulate the steady state electric fields in optical cavities with realistic mirrors. The main advantage of OSCAR over other similar packages is the simplicity of its code requiring only a short time to master. As a result, even for a beginner, it is relatively easy to modify OSCAR to suit other specific purposes. OSCAR includes an extensive manual and numerous detailed examples such as simulating thermal aberration, calculating cavity eigen modes and diffraction loss, simulating flat beam cavities and three mirror ring cavities. An example is also provided about how to run OSCAR on the GPU of modern graphic cards instead of the CPU, making the simulation up to 20 times faster.
Architecture in the service of the Roman army: Horrea and the grain supply of Roman frontier forts. An analysis of Roman-period granaries during the conquest of the western Roman Empire
Creators: name: Salido Domínguez, Javier
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: ...
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
title: ENVIRONMENTALLY SUSTAINABLE EXPORT OF FRUITS AND VEGETABLES
title: ENVIRONMENTALLY SUSTAINABLE EXPORT OF FRUITS AND VEGETABLES
titleType: AlternativeTitle
Creators: name: Yarashev, M.U.
Publisher: name: Zenodo
Year: 2023

description: This scientific article explores the crucial intersection of environmental sustainability and the exportation of fruits and vegetables, shedding light on the initiatives, requirements, and practices that contribute to a more environmentally friendly supply chain. The paper delves into the existing literature to review the environmental sustainability landscape within the fruit and vegetable export industry, with a particular focus on waste management and sustainable agriculture practices. By examining current initiatives and regulatory requirements, the article aims to provide insights into the challenges and opportunities for enhancing the environmental performance of the industry.
Violetta Reiter, Ressourcenmanagement im Pfahlbau. Technologie und Rohmaterial der Steinbeilklingen vom Mondsee
Creators: name: Biagi, Paolo
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: Violetta Reiter, Ressourcenmanagement im Pfahlbau. Technologie und Rohmaterial der Steinbeilklingen vom Mondsee. Mitteilungen der Prähistorischen Kommission Band 81. Two volumes (Text and Katalog). Österreichische Akademie der Wissenschaften, Wien 2013. € 129,-. ISBN 978-3-7001-7339-7. 555 pages, figures.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Kai Mückenberger, Elsfleth-Hogenkamp. Archäologische Funde des 1. Jahrtausends n. Chr. am Zusammenfluss von Hunte und Weser
Creators: name: Beek, Roy Van
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: Kai Mückenberger, Elsfleth-Hogenkamp. Archäologische Funde des 1. Jahrtausends n. Chr. am Zusammenfluss von Hunte und Weser. Mit Beiträgen von Ulrich Schmölke, Martina Karle, Annette Siegmüller und Imke Brandt. Studien zur Landschafts- und Siedlungsgeschichte im südlichen Nordseegebiet volume 4. Niedersächsisches Institut für historische Küstenforschung, Wilhelmshaven 2013. € 54.80. ISBN 978-3-86757-334-4, ISSN 1867-2752. 244 pages, 149 figures, 16 tables, 10 plates.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Interferometry for the LISA technology package LTP: An update
Creators: name: Heinzel, G.
name: Bogenstahl, J.
name: Braxmaier, C.
name: Danzmann, K.
name: Garcia, A.
name: Guzman, F.
name: Hough, J.
name: Hoyland, D.
name: Jennrich, O.
name: Killow, C.
name: Robertson, D.
name: Sodnik, Z.
name: Steier, F.
name: Ward, H.
name: Wand, V.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2006
Subjects: subject: LISA technology package
subject: LTP
subject: gravitational wave observatory
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: This paper gives an update on the status of the LISA technology package (LTP) which is to be launched in 2009 by ESA as a technology demonstration mission for the spaceborne gravitational wave observatory LISA. The dominant noise source in the interferometer prototype has been investigated and improved such that it is now comfortably below its budget at all frequencies.
Mã nhận diện thường trực cho các công cụ và tiện ích: lĩnh vực PID cần thiết phối hợp đang nổi lên
Creators: name: Nghĩa, Lê Trung
Publisher: name: Zenodo
Year: 2023
Subjects: mã nhận diện thường trực (PID)
mã nhận diện thường trực cho các công cụ và tiện ích nghiên cứu (PIDINST)
rủi ro và lòng tin

description: Đây là bản dịch của tài liệu 'Persistent identifiers for research instruments and facilities: an emerging PID domain in need of coordination' của các tác giả Pablo de Castro, Ulrich Herb, Laura Rothfritz và Joachim Schöpfel (scidecode science consulting), do Knowledge Exchange (KE) xuất bản tháng 2/2023. Bản gốc tiếng Anh có tại địa chỉ: https://zenodo.org/record/7330372
description: {"references": ["Pablo de Castro, Ulrich Herb, Laura Rothfritz and Joachim Sch\u00f6pfel (scidecode science consulting) (2023): Persistent identifiers for research instruments and facilities: an emerging PID domain in need of coordination. https://zenodo.org/record/7330372"]}
title: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 16, Nr. 3 (1932)
title: Germania
titleType: AlternativeTitle
Creators: name: Germania : Anzeiger Der Römisch-Germanischen Kommission Des Deutschen Archäologischen Instituts
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Zur Campignien-Frage...177-185
Mesolithikum aus Stuttgart...186-187
Spiralkeramische Siedlung hei Herkheim, B. A. Nördlingen...187-190
Kurzer Bericht über den Bronzedepotfund von Weinheim-Nächstenbach a. d. Bergstraße...190-192
Zu den Ornamenten am Silberring von Trichtingen...193-196
Kastell Hüfingen. Fünfter vorläufiger Bericht...196-201
Statuetten der Diana und Victoria von Wannweil...201-203
Wochengötterdenkmäler aus Cannstatt...203-205
Zwei Bronzestatuetten aus Groß-Ringe...205-207
Tonmaske eines Germanen im British Museum...207-208
Garda...208-215
Kleine Mitteilungen...216-222
Fundchronik...223-238
John Marshall, Mohenjo-daro and the Indus Civilization...238-242
Neuerscheinungen...249-256
Walter Schmid, Norisches Eisen...242-244
Felix Stähelin, Die Schweiz in römischer Zeit...244
Christian Mehlis, Altdeutschland = ‘Germania magna’ nach der ‘Geographia’ des Claudius Ptolemaeus und der ‘Germania’ des Cornelius Tacitus...245-246
Vodnik po zbirkah Narodnega Muzeja v Ljubljani...246-248
Eduard Beninger, Der westgotisch-alanische Zug nach Mitteleuropa...248-249
Stabilized high power laser for advanced gravitational wave detectors
Creators: name: Willke, B.
name: Danzmann, K.
name: Fallnich, C.
name: Frede, M.
name: Heurs, M.
name: King, P.
name: Kracht, D.
name: Kwee, P.
name: Savage, R.
name: Seifert, F.
name: Wilhelm, R.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2006
Subjects: subject: High Power Laser
subject: Gravitational Wave Detectors
subject: Advanced LIGO PSL
subject: prestabilized laser system
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Second generation gravitational wave detectors require high power lasers with several 100W of output power and with very low temporal and spatial fluctuations. In this paper we discuss possible setups to achieve high laser power and describe a 200W prestabilized laser system (PSL). The PSL noise requirements for advanced gravitational wave detectors will be discussed in general and the stabilization scheme proposed for the Advanced LIGO PSL will be described. Special emphasis will be given to the most demanding power stabilization requiremets and new results (RIN ≤ 4×10 -9/√Hz) will be presented.
Rhinanthus subalpinus Schinz et Thell.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: Rh. subalpinus (Stern.) Schinz et Thell. (A. subalpinus Stern:, Rh.alpinus auct.nonnull., non Baumg.) Cat. 276. l: Salanfe (J.); La Creuse (J.); Barberine (J.); Alpen von Outre-Rhone (Garns). - 3: Mauvoisin (Miller, P.); Val des Dix (J.); Berisal (nachSchinz).- 4: Rappental (B.C.W.; Binz); Blindental (B.C.W.); Gerental (B. C.W.). Var. simplex (Stern.) Schinz et Thell. - l: Ob Finhaut (Coquoz).- 3:Saastal:Fee (J.), Mattmark (J.). - 3a: Furgge zwischen Gabi und dem Zwischbergental (nach Sterneck). - 4: Hockboden im Binntal (Binz); Gerental (B. C.W.); Maienwang(Wilczek).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Matthieu Michler, Les haches du Chalcolithique et de l’Âge du Bronze en Alsace
Creators: name: Hansen, Svend
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: Matthieu Michler, Les haches du Chalcolithique et de l’Âge du Bronze en Alsace. Prähistorische Bronzefunde Abteilung IX, Band 26. Franz Steiner Verlag, Stuttgart 2013. € 72,—. ISBN 978-3-515-10627-6. XII und 140 Seiten, 31 Tafeln.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
David Fontijn / Sasja van der Vaart / Richard Jansen (Hrsg.), Transformation through Destruction. A Monumental and Extraordinary Early Iron Age Hallstatt C Barrow from the Ritual Landscape of Oss-Zevenbergen
Creators: name: Augstein, Melanie
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: David Fontijn / Sasja van der Vaart / Richard Jansen (Hrsg.), Transformation through Destruction. A Monumental and Extraordinary Early Iron Age Hallstatt C Barrow from the Ritual Landscape of Oss-Zevenbergen. Ancestral Mounds Project, Leiden University. Sidestone Press, Leiden 2013. € 44,95. ISBN 978-90-8890-102-7. 346 Seiten mit zahlreichen, vor allem farbigen Abbildungen.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Harald Meller, Die Fibeln aus dem Reitia-Heiligtum von Este (Ausgrabungen 1880—1916)
Creators: name: Feugère, Michel
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: Harald Meller, Die Fibeln aus dem Reitia-Heiligtum von Este (Ausgrabungen 1880—1916). Studien zu den Spätlatèneformen / Le fibule del santuario di Reitia a Este (scavi 1880—1916). Studi sulle forme tardo-lateniane. Nünnerich-Asmus Verlag, Mainz 2012. € 79,90. ISBN 978- 3-943904-07-9. 477 pages, 98 illustrations, 4 planches de type.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Regula Schatzmann, Die Spätzeit der Oberstadt von Augusta Raurica. Untersuchungen zur Stadtentwicklung im 3. Jahrhundert
Creators: name: Bülow, Gerda Von
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: Regula Schatzmann, Die Spätzeit der Oberstadt von Augusta Raurica. Untersuchungen zur Stadtentwicklung im 3. Jahrhundert. Forschungen in Augst Band 48. Museum Augusta Rau- rica, Augst 2013. € 92,—. ISBN 978-3-7151-0048-7. 432 Seiten, 158 Abbildungen, 63 Tafeln, 34 Tabellen.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Stefan Leenen, Die Isenburgen an der Ruhr
Creators: name: Friedrich, Reinhard
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezenzion zu: Stefan Leenen, Die Isenburgen an der Ruhr. Denkmalpflege und Forschungen in Westfalen Band 52. LWL-Denkmalpflege, Landschafts- und Baukultur in Westfalen und LWL-Archäologie für Westfalen, Darmstadt 2011. € 69,—. ISBN 978-3-8053-4396-1. 2 Bände. Teil 1 590 Seiten; Teil 2: Katalog, Tafeln und Beilagen.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Safety Helmet Detection System-Guardian helmet.docx
Creators: name: wendabona, pavithra
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 460299
subject: Artificial intelligence not elsewhere classified
classificationCode: 400504
subject: Construction engineering
classificationCode: 460304
subject: Computer vision
classificationCode: 460305
subject: Image and video coding
classificationCode: 460306
subject: Image processing

description: The research addresses a critical issue in Sri Lanka's construction industry, where a significant number of annual accidents are attributed to non-compliance with safety regulations, particularly the use of personal protective equipment like safety helmets. In response to this safety crisis, the study introduces the "Guardian Helmet Safety Detection System," a groundbreaking mobile application powered by Artificial Intelligence (AI) and Computer Vision (CV). This innovative solution aims to detect safety gear non-compliance in real-time, issuing alerts to enhance safety standards. The research not only identifies the persistent problem of workers not wearing safety helmets but also proposes a cost-effective and accessible technological solution tailored to the local construction industry. The system's effectiveness is demonstrated through a comprehensive methodology, including the development of a deep learning model, real-time communication features, integration with weather data, and efficient time monitoring. The study concludes by acknowledging the system's transformative potential and discussing its limitations and recommendations for future improvements, emphasizing the broader implications for the evolution of safety practices in the construction sector.
Optimization of graphene dry etching conditions via combined microscopic and spectroscopic analysis
Creators: name: Prado, Mariana C.
name: Jariwala, Deep
name: Marks, Tobin J.
name: Hersam, Mark C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Single-layer graphene structures and devices are commonly defined using reactive ion etching and plasma etching with O2 or Ar as the gaseous etchants. Although optical microscopy and Raman spectroscopy are widely used to determine the appropriate duration of dry etching, additional characterization with atomic force microscopy (AFM) reveals that residual graphene and/or etching byproducts persist beyond the point where the aforementioned methods suggest complete graphene etching. Recognizing that incomplete etching may have deleterious effects on devices and/or downstream processing, AFM characterization is used here to determine optimal etching conditions that eliminate graphene dry etching residues.
description: manuscript+supporting information
Diffusive Motion in Stage-1 and Stage-2 Li-Graphite Intercalation Compounds: Results of β-NMR and Quasielastic Neutron Scattering
Creators: name: Schirmei, A.
name: Heitjans, Paul
Publisher: name: Berlin : De Gruyter
Year: 1995
Subjects: subject: Li-Graphite
subject: ß-NMR
subject: Quasielastic Neutron Scattering
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Investigations of Li diffusion in stage-1 and stage-2 Li graphite intercalation compounds with neutron time-of-flight and backscattering techniques and β-radiation detected nuclear magnetic resonance/relaxation (β-NMR) with the nucleus 8Li(T1/2 = 0.8 s) are reviewed and compared. Depending on temperature, the spin-lattice relaxation-rate T1 -1of 8Li is governed by different processes. Above 300 K, T1 -1(T) shows maxima induced by long-range Li+diffusion. Jump correlation times are estimated. Inspection of the B field dependence of T1 -1revealed two-dimensional diffusion behaviour. The neutron spectra showed a quasielastic line broadening above 500 K, which was used to obtain diffusion coefficients and to trace jump vectors of the in-plane motion. The diffusion parameters observed with both techniques are compared, and differences that show up are discussed. In addition, the low-temperature spin-lattice relaxation rates, being due to coupling to conduction electrons, are used to explore electronic properties.
Transition wave in a supported heavy beam
Creators: name: Brun, Michele
name: Movchan, Alexander B.
name: Slepyan, Leonid I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Physics (physics.class-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 74J40

description: We consider a heavy, uniform, elastic beam rested on periodically distributed supports as a simplified model of a bridge. The supports are subjected to a partial destruction propagating as a failure wave along the beam. Three related models are examined and compared: (a) a uniform elastic beam on a distributed elastic foundation, (b) an elastic beam which mass is concentrated at a discrete set of points corresponding to the discrete set of the elastic supports and (c) a uniform elastic beam on a set of discrete elastic supports. Stiffness of the support is assumed to drop when the stress reaches a critical value. In the formulation, it is also assumed that, at the moment of the support damage, the value of the `added mass', which reflects the dynamic response of the support, is dropped too. Strong similarities in the behavior of the continuous and discrete-continuous models are detected. Three speed regimes, subsonic, intersonic and supersonic, where the failure wave is or is not accompanied by elastic waves excited by the moving jump in the support stiffness, are considered and related characteristic speeds are determined. With respect to these continuous and discrete-continuous models, the conditions are found for the failure wave to exists, to propagate uniformly or to accelerate. It is also found that such beam-related transition wave can propagate steadily only at the intersonic speeds. It is remarkable that the steady-state speed appears to decrease as the jump of the stiffness increases.
description: 29 pages, 15 figures (12 single, 3 double)
Analysis of an experimental setup for structural damping identification
Creators: name: Hentschel, Olaf Peter
name: Bonhage, Marius
name: Panning-Von Scheidt, Lars
name: Wallaschek, Jörg
name: Denk, Markus
name: Masserey, Pierre-Alain
Publisher: name: Warsaw : Polish Society of Theoretical and Allied Mechanics
Year: 2016
Subjects: subject: Damping Determination
subject: Experimental Setup
subject: Impact Excitation
subject: Material Damping
subject: Vacuum Chamber
subject: Energy dissipation
subject: Common models
subject: Impact excitation
subject: Material damping
subject: Parameterized
subject: Reproducibilities
subject: Structural damping
subject: Vacuum chambers
subject: Damping
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: In the present paper, an experimental setup for structural damping determination arising from energy dissipations within the material is presented. The experimental setup is developed in such a way that all unintended damping sources are eliminated. In this connection, priority is also given to the reproducibility of the experimental data. In addition, a vacuum chamber is developed to reduce the damping arising from the interaction with the surrounding medium. Furthermore, beam-shaped specimens are clamped in a suspended way, using screws with an apex to fix the specimens in their nodes of vibration. Then, the influence of test rig specific parameters on the damping value is analyzed. In this context, an ideal setup of the test rig is identified to measure structural damping values arising from dissipations within the material. Finally, a common model for material damping description is parameterized using the experimental data.
Adaptive Distributed Space-Time Coding in Cooperative MIMO Relaying Systems using Limited Feedback
Creators: name: Peng, T.
name: de Lamare, R. C.
name: Schmeink, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: An adaptive randomized distributed space-time coding (DSTC) scheme is proposed for two-hop cooperative MIMO networks. Linear minimum mean square error (MMSE) receiver filters and randomized matrices subject to a power constraint are considered with an amplify-and-forward (AF) cooperation strategy. In the proposed DSTC scheme, a randomized matrix obtained by a feedback channel is employed to transform the space-time coded matrix at the relay node. The effect of the limited feedback and feedback errors are considered. Linear MMSE expressions are devised to compute the parameters of the adaptive randomized matrix and the linear receive filters. A stochastic gradient algorithm is also developed with reduced computational complexity. The simulation results show that the proposed algorithms obtain significant performance gains as compared to existing DSTC schemes.
description: 5 figures. arXiv admin note: substantial text overlap with arXiv:1303.4120
Probing the Interstellar Medium of z~1 Ultra-luminous Infrared Galaxies through Interferometric Observations of CO and Spitzer Mid-infrared Spectroscopy
Creators: name: Pope, Alexandra
name: Wagg, Jeff
name: Frayer, David
name: Armus, Lee
name: Chary, Ranga-Ram
name: Daddi, Emanuele
name: Desai, Vandana
name: Dickinson, Mark E.
name: Elbaz, David
name: Gabor, Jared
name: Kirkpatrick, Allison
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We explore the relationship between gas, dust and star formation in a sample of 12 ultra-luminous infrared galaxies (ULIRGs) at high redshift compared to a similar sample of local galaxies. We present new CO observations and/or Spitzer mid-IR spectroscopy for 6 70 micron selected galaxies at z~1 in order to quantify the properties of the molecular gas reservoir, the contribution of an active galactic nuclei (AGN) to the mid-IR luminosity and the star formation efficiency (SFE=LIR/L'CO). The mid-IR spectra show strong polycyclic aromatic hydrocarbon (PAH) emission and our spectral decomposition suggests that the AGN makes a minimal contribution (<25%) to the mid-IR luminosity. The 70 micron selected ULIRGs which we find to be spectroscopic close pairs, are observed to have high SFE, similar to local ULIRGs and high redshift submillimeter galaxies, consistent with enhanced IR luminosity due to an ongoing major merger. Combined with existing observations of local and high redshift ULIRGs, we further compare the PAH, IR and CO luminosities. We show that the ratio LPAH6.2/LIR decreases with increasing IR luminosity for both local and high redshift galaxies but the trend for high redshift galaxies is shifted to higher IR luminosities; the average LPAH6.2/LIR ratio at a given LIR is ~3 times higher at high redshift. When we normalize by the molecular gas, we find this trend to be uniform for galaxies at all redshifts and that the molecular gas is correlated with the PAH dust emission.The similar trends seen in the [CII] to molecular gas ratios in other studies suggests that PAH emission, like [CII], continues to be a good tracer of photodissociation regions even at high redshift. Together the CO, PAH and far-IR fine structure lines should be useful for constraining the interstellar medium conditions in high redshift galaxies.
description: 16 pages, 6 figures, 5 tables, accepted for publication in ApJ
title: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 5, Nr. 2 (1921)
title: Germania
titleType: AlternativeTitle
Creators: name: Germania : Anzeiger Der Römisch-Germanischen Kommission Des Deutschen Archäologischen Instituts
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2015

description: Eine vorgeschichtliche Höhensiedelung bei Neubamberg (Rheinhessen)...49-57
Vorgeschichtliche Befestigungen bei Bad Dürkheim...57-60
Germanische Siedelung bei Unterweisenborn (Kr. Hersfeld)...60-64
Die Villa rustica bei Stahl und Verwandtes...64-73
Die Ausgrabungen im Friedhofe zu Heddernheim im Herbst 1920...73-77
Namenstempel der Coh. IIII Vindelicorum...77-79
Das germanische Tierornament und der Stil der Stabreimepik...80-91
Aus Museen und Vereinen...91-94
Literatur...95-96
Zum Hochtemperaturverhalten dämmschichtbildender Brandschutzsysteme auf Stahlbauteilen
Creators: name: Tabeling, Florian
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Intumescent coating
subject: numerical simulations
subject: experimental investigations
subject: fire protection
subject: coated steel elements
subject: material properties
subject: Dämmschichtbildner
subject: numerische Simulation
subject: experimentelle Untersuchungen
subject: Brandschutz
subject: beschichtete Stahlbauteile
subject: Materialeigenschaften
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Studien zum synthetischen Zugang zu Ripostatinen und deren Analoga
Creators: name: Tang, Wufeng
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Difluororipostatin
subject: ring closing metathesis
subject: carboalumination
subject: Stille cross-coupling
subject: Reformatsky aldol reaction
subject: RNA-Polymerase-Inhibitor
subject: Difluor-Ripostatin
subject: Ringschlussmetathese
subject: Carboaluminierung
subject: Stille-Kreuzkupplung
subject: Reformatsky-Aldolreaktion
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Pedicularis verticillata L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: P. verticillata L. Cat. 276. Bis 2820 m: Ferdenpass (J.). Herabsteigend bis 1150 m bei Schwidernen im Mattertal (Becherer und Kilcher), herabgeschwemmt bis 460 m an der Pissevache bei Vernayaz (Coquoz). Forma eosina Beauverd - l: Col du Jorat (Mlle Goutaland).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Is higher education really higher and secondary education merely secondary? The transition from higher and vocational education to work from an international perspective
Creators: name: Marczuk, Anna
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2021
Subjects: subject: Institutionen des Bildungssystems
subject: Internationaler Vergleich
subject: Übergang von Bildung in die Beschäftigung
subject: Hochschulabsolven:innen
subject: Absolvent:innen beruflicher Bildung
subject: Arbeitsmarkterträge
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: This dissertation addresses the question of why the labour market outcomes of higher education (HE) graduates differ from those of vocational education (VET) graduates within European countries. To date, these educational groups, different in educational level and in educational orientation (specific vs. general), have hardly been considered within comparative transition research and how both groups interact within different educational contexts remains under-researched. To answer the question, a three-layer theoretical model is proposed. In addition to the institutional and the individual level, the occupational level is considered as well. This is because both educational groups are prepared for different occupational sectors. The main theoretical assumption implies that institutional features of the education system moderate the closure of certain occupations and thereby affect individual labour market outcomes (matching). The focus is on two institutional characteristics: the selectivity of tertiary education and the specificity of vocational education (compared to tertiary education). While selectivity strengthens the signalling of university degrees and opens up the occupational structure for tertiary graduates, the higher occupational specificity of the VET stage (compared to the HE stage) in turn has a positive effect for VET graduates. Furthermore, it is assumed that the two institutional characteristics complement each other. This is based on the assumption that they operate at different layers of the labour market. While strong selectivity regulates entire labour market segments by the level of education, occupational specificity affects the closure of jobs within these segments by the signalling effect of educational programmes (field of education). These theoretical assumptions are tested with multilevel analyses based on the Labour Force Survey data (EU-LFS 2009) in 28 European countries. The analyses confirm most of the theoretical assumptions and allow country clusters that differ according to the constellation of both institutional settings to be defined. The dissertation contributes to the understanding of how educational institutions affect the individual labour market outcomes of two groups with different educational levels and educational programmes. In addition, it provides an understanding of the complementarities of educational institutions.
Kanzleistraße 24 in Reutlingen von 1267 (d) Ein Fachwerkgerüst aus der Frühzeit der Reichsstadt
Creators: name: Redaktion, Die
Publisher: name: Südwestdeutsche Beiträge zur historischen Bauforschung
Year: 2017

description: [nicht vorhanden / not available]
description: Südwestdeutsche Beiträge zur historischen Bauforschung, Bd. 7 (2007)
title: Examination Timetabling with Mathematical Programming An Application in Turkish Air Force Academy
Creators: name: Koksalmis, Emrah
Publisher: name: Old Dominion University Libraries
Year: 2011

description: The focus of this thesis is the educational timetabling problem, which is a very challenging problem to solve especially with a high number of the departments, branches, classes, and students. Due to the large scale of educational timetabling problems and preferences of the stakeholders, it is almost impossible to form a general model that solves all of the timetabling problems in the literature. This resulted in the need to develop and employ specific models for specific institutions.

The purpose of this study is to develop a mathematical programming model that solves the examination timetabling problem in Turkish Air Force Academy (TUAF A). Primarily, the constraints are expressed in mathematical form to generate the model which takes into account examination conflicts, classroom capacities, seating plan restriction and exam spread (i.e. at most two examinations in three consecutive examination timeslots). The model is solved using IBM OPL Studio, the results are obtained and further analyses are conducted. Since there are not general data in the literature to verify the model, the verification is done by trying different instances of the problem and the results of these instances are compared. Although the solution of the developed model satisfies all of the hard and soft constraints, utilization of classrooms is observed to be at low level which may need to be increased depending on the users' preferences. To address this issue, the constraint satisfaction model is extended into an optimization model by introducing an objective function, new constraints and new decision variables. The results of the new optimization model increased classrooms' utilization by 53%. With higher classroom utilization as a result of the optimization model, fewer classrooms are needed, and therefore, fewer proctors and other related resources will be needed.
Eigenvalue statistics of reduced density matrix during driving and relaxation
Creators: name: Mierzejewski, M.
name: Prosen, T.
name: Crivelli, D.
name: Prelovsek, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study a subsystem of an isolated one-dimensional correlated metal when it is driven by a steady electric field or when it relaxes after driving. We obtain numerically exact reduced density matrix $ρ$ for subsystems which are sufficiently large to give significant eigenvalue statistics and spectra of $\log(ρ)$. We show that both for generic as well as for the integrable model the statistics follows the universality of Gaussian unitary and orthogonal ensembles for driven and equilibrium systems, respectively. Moreover, the spectra of modestly driven subsystems are well described by the Gibbs thermal distribution with the entropy determined by the time-dependent energy only.
A stereo line matching technique for aerial images based on a pair-wise relation approach
Creators: name: Ok, A.O.
name: Wegner, Jan Dirk
name: Heipke, Christian
name: Rottensteiner, Franz
name: Sörgel, Uwe
name: Toprak, V.
Publisher: name: Hannover : International Society for Photogrammetry and Remote Sensing
Year: 2010
Subjects: subject: Pair-wise line matching
subject: Post-processing
subject: Stereo aerial images
subject: Image matching
subject: Information science
subject: Iterative methods
subject: Urban growth
subject: Aerial images
subject: Dense urban areas
subject: Line extraction
subject: Line-matching
subject: Post processing
subject: Postprocessing algorithms
subject: Relation-based
subject: Voting schemes
subject: Stereo image processing
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: In this study, we developed a new pair-wise relation based approach for the matching of line features from stereo aerial images. To solve the final matching inconsistencies, we propose an iterative pair based post-processing algorithm in which the matching inconsistencies are eliminated using three novel measures and a final similarity voting scheme. The approach is tested over four urban test sites with various built-up characteristics, and for all test sites, we achieved a stereo line matching performance of 98%. The overall results indicate that the proposed approach is highly robust for the line features extracted in (very) dense urban areas.
Direct and inverse spectral problems for a class of non-selfadjoint band matrices
Creators: name: Bebiano, Natalia
name: Tyaglov, Mikhail
Publisher: name: arXiv
Year: 2013
Subjects: subject: Spectral Theory (math.SP)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 65F15, 15A18

description: The spectral properties of a class of band matrices are investigated. The reconstruction of matrices of this special class from given spectral data is also studied. Necessary and sufficient conditions for that reconstruction are found. The obtained results extend some results on the direct and inverse spectral problems for periodic Jacobi matrices and for some non-self-adjoint tridiagonal matrices.
description: 13 pages
The equivalence and/or the effacing principle in f(R) theories of gravity
Creators: name: Bhattacharyya, Soham
Publisher: name: Berlin ; Heidelberg : Springer
Year: 2022
Subjects: subject: Post-Newtonian Equations
subject: Hydrodynamics
subject: Pulsar
subject: Motion
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The Einstein–Hilbert action of the general theory of relativity (GR) is the integral of the scalar curvature R. It is a theory that is drawn from the Equivalence principle and has predictions that come out as a consequence of the principle, in observables. Testing such observables to find confirmation/infirmation of the principle has formed a significant chunk of tests of GR itself. It is expected that quantum corrections to GR may add additional higher powers of R to the Einstein–Hilbert action, or more generally, modifying the action into a generic class of functions of the Ricci scalar. Testing the fate of the prized equivalence principle, in such modified theories of gravity, hence become important in order to obtain a more generic theory of gravitation, and consequently, of gravitating objects. In this study, it is shown that a Post-Newtonian (PN) expansion of a class of f(R) theories lead to a sequence of solutions to the two-body problem, which follows the equivalence principle (EP) at the Newtonian order, and generalizes to the ‘effacing principle’ at a higher PN order. © 2022, The Author(s).
Comparative measurements of bone mineral density and bone contrast values in canine femora using dual-energy X-ray absorptiometry and conventional digital radiography
Creators: name: Lucas, K.
name: Nolte, Ingo
name: Galindo-Zamora, V.
name: Lerch, M.
name: Stukenborg-Colsman, C.
name: Behrens, Bernd-Arno
name: Bouguecha, Anas
name: Betancur, S.
name: Almohallami, Amer
name: Wefstaedt, Patrick
Publisher: name: London : BioMed Central Ltd.
Year: 2017
Subjects: subject: Bone mineral density
subject: Bone remodelling
subject: Canine
subject: DEXA
subject: Digital radiography
subject: Femur
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: Background: Aseptic loosening due to bone remodelling processes after total hip replacement is one common cause for revision surgery. In human medicine, dual-energy X-ray absorptiometry (DEXA) is the gold standard for quantitative evaluation of bone mineral density, whereas in veterinary medicine conventional radiography is used for follow-up studies. Recently, a method has been described using digital X-ray images for quantitative assessment of grey scale values of bone contrast. Therefore, the aim of the present study was to evaluate the correlation of bone mineral density (BMD) measured by DEXA with grey scale values (GV) measured in digital X-ray images (RX50, RX66) ex vivo. Results: The measured GV in the chosen X-ray settings showed on average a good correlation (r = 0.61) to the measured BMD with DEXA. Correlation between the two X-ray settings was very good (r = 0.81). For comparisons among regions of interests (ROIs) a difference of 8.2% was found to be statistically significant, whereas in the case of RX50 and RX66 differences of 5.3% and 4.1% were found to be statistically significant. Conclusions: Results indicate that measuring absolute changes in bone mineral density might be possible using digital radiography. Not all significant differences between ROIs detectable with DEXA can be displayed in the X-ray images because of the lower sensitivity of the radiographs. However, direct comparison of grey scale values of the periprosthetic femur in one individual patient during the follow-up period, in order to predict bone remodelling processes, should be possible, but with a lesser sensitivity than with DEXA. It is important that the same X-ray settings are chosen for each patient for follow-up studies.
The Curious Case of Glass I: High Ionization and Variability of Different Types
Creators: name: Kruger, Andrew J.
name: Richter, Matthew J.
name: Carr, John S.
name: Najita, Joan R.
name: Moerchen, Margaret M.
name: Doppmann, Greg W.
name: Seifahrt, Andreas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Our Spitzer IRS observation of the infrared companion Glass Ib revealed fine structure emission with high ionization ([NeIII]/[NeII]=2.1 and [SIV]/[SIII]=0.6) that indicates the gas is likely illuminated by hard radiation. While models suggest extreme ultraviolet radiation could be present in T Tauri stars (Hollenbach & Gorti 2009 and references therein), this is the first detection of [SIV] and such a high [NeIII]/[NeII] ratio in a young star. We also find that Glass Ib displays the molecules HCN, CO2, and H2O in emission. Here we investigate the Glass I binary system and consider possible mechanisms that may have caused the high ionization, whether from an outflow or disk irradiation. We also model the spectral energy distributions of Glass Ia and Ib to test if the system is a young member of the Chameleon I star-forming region, and consider other possible classifications for the system. We find Glass Ib is highly variable, showing changes in continuum strength and emission features at optical, near-infrared, and mid-infrared wavelengths. The optical light curve indicates that a central stellar component in Glass Ib became entirely visible for 2.5 years beginning in mid-2002, and that possibly displayed periodic variability with repeated, short-period dimming during that time. As the fine structure emission was not detected in observations before or after our Spitzer IRS observation, we explore whether the variable nature of Glass Ib is related to the gas being highly ionized, possibly due to variable accretion or an X-ray flare.
description: 13 pages, 11 figures, Accepted for publication in ApJ