cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Optimization of a grid-tied inverter : an application-oriented for designing multilevel converters
Creators: name: Di Tullio, Luccas
Publisher: name: University of British Columbia
Year: 2016

description: Recent developments in energy systems, including the rapid adoption of renewable energy sources and expansion of microgrids have been introducing new challenges and opportunities for the power electronics industry. Of particular interest to this thesis is the increase of grid-connected DC systems. As a means to reduce cost of copper infrastructure these systems favour the utilization of higher DC link voltages. To accommodate higher voltages, a variety of multilevel converters have been proposed, which generally can be built without specialized components, present lower dV/dt losses and synthesize AC signals with better power quality. Irrespective of the application, the power electronics industry has traditionally relied on generic rules and practices to quickly design converters. Rarely does the development cycle allow for thorough investigation of the converter design, which could enhance performance and give an edge over competitors. This thesis proposes using optimization techniques to aid power electronics engineers in the design of multilevel converters. The Neutral Point Clamped (NPC) with its variant the Active NPC (ANPC) were selected for the exercise presented. Chapter 2 of this thesis explains the operation and modulation of the topologies. From the analysis, the conduction and switching losses of each device can be predicted. A description of three semiconductor technologies is presented with their characteristics and source of losses. Lastly an equation to size the filter inductor is introduced. All this information is packaged into a model used in the optimization. Chapter 3 introduces the optimization strategy. Given the complex nature of power electronics, four objective functions were adopted: efficiency, loss distribution, inductance and cost. These functions were combined through a weight system which allows priorities to be asserted. Next, design variables are introduced along with their respective impacts on the objective functions. Experiments performed with a hardware platform showed the model closely predicts the impact of the design variables on the objective functions. Confident in the model, the optimization was carried out for various scenarios. Single objective optimization led to converters that excel in one aspect but were often not practical. When optimizing with multiple objectives a good compromise was reached with a practical converter.
Identification of Magnetite in B-type Asteroids
Creators: name: Yang, Bin
name: Jewitt, David
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Spectrally blue (B-type) asteroids are rare, with the second discovered asteroid Pallas being the largest and most famous example. We conducted a focused, infrared spectroscopic survey of B-type asteroids to search for water-related features in these objects. Our results show that the negative optical spectral slope of some B-type asteroids is due to the presence of a broad absorption band centered near 1.0 micron. The 1-micron band can be matched in position and shape using magnetite (Fe3O4), which is an important indicator of past aqueous alteration in the parent body. Furthermore, our observations of B-type asteroid (335) Roberta in the 3-micron region reveal an absorption feature centered at 2.9 micron, which is consistent with the absorption due to phyllosilicates (another hydration product) observed in CI chondrites. The new observations suggest that at least some B-type asteroids are likely to have incorporated significant amounts of water ice and to have experienced intensive aqueous alteration.
description: 19 pages, 5 figures, accepted by AJ
Adaptive Expectations, Confirmatory Bias, and Informational Efficiency
Creators: name: Aldashev, Gani
name: Carletti, Timoteo
name: Righi, Simone
Publisher: name: arXiv
Year: 2010
Subjects: subject: Trading and Market Microstructure (q-fin.TR)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: We study the informational efficiency of a market with a single traded asset. The price initially differs from the fundamental value, about which the agents have noisy private information (which is, on average, correct). A fraction of traders revise their price expectations in each period. The price at which the asset is traded is public information. The agents' expectations have an adaptive component and a social-interactions component with confirmatory bias. We show that, taken separately, each of the deviations from rationality worsen the information efficiency of the market. However, when the two biases are combined, the degree of informational inefficiency of the market (measured as the deviation of the long-run market price from the fundamental value of the asset) can be non-monotonic both in the weight of the adaptive component and in the degree of the confirmatory bias. For some ranges of parameters, two biases tend to mitigate each other's effect, thus increasing the informational efficiency.
Stochastic dynamics of an electron in a Penning trap: phase flips correlated with amplitude collapses and revivals
Creators: name: Brouard, S.
name: Plata, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We study the effect of noise on the axial mode of an electron in a Penning trap under parametric-resonance conditions. Our approach, based on the application of averaging techniques to the description of the dynamics, provides an understanding of the random phase flips detected in recent experiments. The observed correlation between the phase jumps and the amplitude collapses is explained. Moreover, we discuss the actual relevance of noise color to the identified phase-switching mechanism. Our approach is then generalized to analyze the persistence of the stochastic phase flips in the dynamics of a cloud of N electrons. In particular, we characterize the detected scaling of the phase-jump rate with the number of electrons.
description: 15 pages, 6 figures
Modeling s-t Path Availability to Support Disaster Vulnerability Assessment of Network Infrastructure
Creators: name: Matisziw, Timothy C.
name: Murray, Alan T.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The maintenance of system flow is critical for effective network operation. Any type of disruption to network facilities (arcs/nodes) potentially risks loss of service, leaving users without access to important resources. It is therefore an important goal of planners to assess infrastructures for vulnerabilities, identifying those vital nodes/arcs whose debilitation would compromise the most source-sink (s-t) interaction or system flow. Due to the budgetary limitations of disaster management agencies, protection/fortification and planning for the recovery of these vital infrastructure facilities is a logical and efficient proactive approach to reducing worst-case risk of service disruption. Given damage to a network, evaluating the potential for flow between s-t pairs requires assessing the availability of an operational s-t path. Recent models proposed for identifying infrastructure vital to system flow have relied on enumeration of all s-t paths to support this task. This paper proposes an alternative model constraint structure that does not require complete enumeration of s-t paths, providing computational benefits over existing models. To illustrate the model, an application to a practical infrastructure planning problem is presented.
Disks and Outflows in CO Rovibrational Emission from Embedded, Low-Mass Young Stellar Objects
Creators: name: Herczeg, Gregory J.
name: Brown, Joanna M.
name: van Dishoeck, Ewine F.
name: Pontoppidan, Klaus M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Young circumstellar disks that are still embedded in dense molecular envelopes may differ from their older counterparts, but are historically difficult to study because emission from a disk can be confused with envelope or outflow emission. CO fundamental emission is a potentially powerful probe of the disk/wind structure within a few AU of young protostars. In this paper, we present high spectral (R=90,000) and spatial (0.3") resolution VLT/CRIRES M-band spectra of 18 low-mass young stellar objects (YSOs) with dense envelopes in nearby star-froming regions to explore the utility of CO fundamental 4.6 micron emission as a probe of very young disks. CO fundamental emission is detected from 14 of the YSOs in our sample. The emission line profiles show a range of strengths and shapes, but can generally be classified into a broad, warm component and a narrow, cool component. The broad CO emission is detected more frequently from YSOs with bolometric luminosities of <15 Lsun than those with >15 Lsun, and as with CO emission from CTTSs is attributed to the warm (~1000 K) inner AU of the disk. The CO emission from objects with high bolometric luminosity is produced in cooler (~320 K), narrow lines in 12CO and in rarer isotopologues. From some objects, the narrow lines are blueshifted by up to ~10 km/s, indicating a slow wind origin. For other sources the lines are located at the systemic velocity of the star and likely arise in the disk. For a few YSOs, spatially-extended CO and H2 S(9) emission is detected up to 2" from the central source and is attributed to interactions between the wind and surrounding molecular material. Warm CO absorption is detected in the wind of six objects with velocities up to 100 km/s, often in discrete velocity components. That the wind is partially molecular where it is launched favors ejection in a disk wind rather than a coronal or chromospheric wind.
description: 26 pages, accepted by A&A
Æstetiseringsformer i politik
Creators: name: Nielsen, Henrik Kaare
Publisher: name: Akademisk kvarter | Academic Quarter
Year: 2019

description: The article analyses different forms of aestheticisation in the field of political practice. It takes its point of departure in a theoretical elaboration of the concept of aestheticisation, specifically with regard to which status it can reasonably be granted in late modern society. With the concepts of differentiation and discursive intervention as overall frame of reference, the article offers a critical analysis of two prominent types of aestheticisation in contemporary political life: the use of aesthetic appeals by established politicians and mass media, and the role that aesthetic symbols and artefacts play in the practices of identity-political movements. Finally, an alternative approach to integrating aesthetic and political discourse is briefly suggested.
description: Akademisk kvarter | Academic Quarter, No 19 (2019): Æstetisering | Aestheticization
Electronic structure, mechanical and thermodynamic properties of ThN from first-principles calculations
Creators: name: Lu, Yong
name: Li, Dafang
name: Wang, Bao-Tian
name: Li, Rong-Wu
name: Zhang, Ping
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Lattice parameter, electronic structure, mechanical and thermodynamic properties of ThN are systematically studied using the projector-augmented-wave method and the generalized gradient approximation based on the density functional theory. The calculated electronic structure indicates the important contributions of Th 6\emph{d}and 5\emph{f} states to the Fermi-level electron occupation. Through Bader analysis it is found that the effective valencies in ThN can be represented as Th$^{+1.82}$ N$^{-1.82}$. Elastic constant calculations shows that ThN is mechanically stable and elastically anisotropic. Furthermore, the melting curve of ThN is presented up to 120 GPa. Based on the phonon dispersion data, our calculated specific heat capacities including both lattice and conduction-electron contributions agree well with experimental results in a wide range of temperature.
description: 16 pages, 8 figures
Island Size Selectivity during 2D Ag Island Coarsening on Ag (111)
Creators: name: Nandipati, G.
name: Kara, A.
name: Shah, S. I.
name: Rahman, T. S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on early stages of submonolayer Ag island coarsening on Ag(111) surface at room temperature ($300$ K) carried out using realistic kinetic Monte Carlo (KMC) simulations. We find that during early stages, coarsening proceeds as a sequence of selected island sizes creating peaks and valleys in the island size distribution. We find that island-size selectivity is due to formation of kinetically stable islands for certain sizes because of adatom detachment/attachment processes and large activation barrier for kink detachment. In addition, we find that the ratio of number of adatom attachment to detachment processes to be independent of parameters of initial configuration and also on the initial shapes of the islands confirming that island-size selectivity is independent of initial conditions.These simulations were carried out using a very large database of processes identified by their local environment and whose activation barriers were calculated using the embedded-atom method.
Inflation with a Weyl term, or ghosts at work
Creators: name: Deruelle, Nathalie
name: Sasaki, Misao
name: Sendouda, Yuuiti
name: Youssef, Ahmed
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In order to assess the role of ghosts in cosmology, we study the evolution of linear cosmological perturbations during inflation when a Weyl term is added to the action. Our main result is that vector perturbations can no longer be ignored and that scalar modes diverge in the newtonian gauge but remain bounded in the comoving slicing.
description: 14 pages, 4 figures
Enforcement patterns and compliance outcomes in BC : lessons learned from the rollout of EAO's watchdog program
Creators: name: Franko, Allison
Publisher: name: University of British Columbia
Year: 2016

description: In 2011, the Office of the Auditor General of BC reported that post-certification monitoring of projects certified through the environmental assessment (EA) process was largely absent (OAGBC, 2011). In response, the BC Environmental Assessment Office (EAO) implemented a compliance and enforcement (C&E) program and began conducting inspections. A total of 103 inspections on 42 active projects have been conducted by EAO between August 2011 and March 2016. Although many regulatory theories detail factors that affect compliance, empirical evidence evaluating patterns of enforcement and compliance outcomes directly related to EA requirements is lacking. This research examines patterns in compliance oversight and compliance outcomes through collection, verification and analysis of a wide range of publically available data. Findings indicate that certain aspects of EAO’s C&E strategy are effective and warranted; while other strategies are not being properly implemented and require reassessment. Based on key findings, a range of recommendations, including suggestions for further research, is provided to improve EAO’s C&E strategy, which will in turn enhance environmental management in BC.
Statistics of the Energy Dissipation Rate and Local Enstrophy in Turbulent Channel Flow
Creators: name: Hamlington, Peter E.
name: Krasnov, Dmitry
name: Boeck, Thomas
name: Schumacher, Jörg
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Using high-resolution direct numerical simulations, the height and Reynolds number dependence of higher-order statistics of the energy dissipation rate and local enstrophy are examined in incompressible, fully-developed turbulent channel flow. The statistics are studied over a range of wall distances, spanning the viscous sublayer to the channel flow centerline, for friction Reynolds numbers $Re_τ= 180$ and $Re_τ= 381$. The high resolution of the simulations allows dissipation and enstrophy moments up to fourth order to be calculated. These moments show a dependence on wall distance, and Reynolds number effects are observed at the edge of the logarithmic layer. Conditional analyses based on locations of intense rotation are also carried out in order to determine the contribution of vortical structures to the dissipation and enstrophy moments. Our analysis shows that, for the simulation at the larger Reynolds number, small-scale fluctuations of both dissipation and enstrophy become relatively constant for $z^+ \gtrsim 100$.
description: Accepted by Physica D
Design of Simple and Efficient Revocation List Distribution in Urban areas for VANET's
Creators: name: Samara, Ghassan
name: Ramadas, Sureswaran
name: Al-Salihy, Wafaa A. H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Vehicular Ad hoc Networks is one of the most challenging research area in the field of Mobile Ad Hoc Networks, in this research we propose a flexible, simple, and scalable design for revocation list distribution in VANET, which will reduce channel overhead and eliminate the use of CRL. Also it will increase the security of the network and helps in identifying the adversary vehicles.
description: 5 pages
Jacob Schellinger
Creators: name: Kelsey, Carleton
name: Amagansett Historical Association
Publisher: name: Unknown
Year: 0
Subjects: Photographs
Portraits
Men
Suits (Clothing)
Amagansett (N.Y.)
Schellinger Family

description: This image shows Jacob Schellinger, posing for a portrait and dressed in suit and tie. This photograph was either taken or collected by Amagansett historian and librarian Carleton Kelsey.
description: This photograph is part of the collection of the Carleton Kelsey Collection of the Amagansett Historical Association. Kelsey was a local historian and librarian who collected photographs from others to add to the many photographs he took of the community himself.
D2.1 Geothermal - IDM for Drilling Processes
Creators: name: Velasquez, Sergio
Publisher: name: Zenodo
Year: 2019
Subjects: reference information
data collection
requirements
IDM
information delivery manual
drilling processes

description: This document (D2.1) states the Geothermal Information Delivery Manual (IDM) for drilling processes involved in the GEOFIT project. The IDM for drilling processes specifies an integrated reference tool to collect the information and data from the different processes involved during drilling operations performance required by the GEOBIM model proposed in the project. The specification of an IDM for GEOFIT project and the need of providing an integrated model for drilling processes is one of the main outcomes of this deliverable as it is a very complex environment. The data acquisition processes and data workflows are produced in real time conditions and different data formats may be found. Within the GEOBIM project context, the IDM is aimed at providing the unified reference for the processes and data required by BIM by identifying the discrete processes that must be undertaken during drilling operations, the information required for their execution and the results obtained from these operations. In general terms, this IDM represents a real challenge because it must specify: How drilling processes fit the global GEOBIM model and how relevant they are; Who are the actors creating, consuming and benefitting from the data collected during drilling; What is the final valuable information created and to be used; How this amount of data shall be supported by virtual tools and software.
Fahrerassistenz zur Kollisionsvermeidung
Creators: name: Hillenbrand, Jörg
Publisher: name: Karlsruhe
Year: 2007

description: Es wird ein Assistenzsystem vorgestellt, das den Fahrer in gefährlichen Verkehrssituationen durch akustische Warnungen und Bremseingriffe bis hin zur Vollbremsung unterstützt. Zur Verfolgung ausgedehnter Objekte dienen vier Nahbereichsradare sowie eine monokularen Kamera mit optischem Fluss. Ein Schwerpunkt ist die echtzeitfähige Situationsbewertung und Systemauslegung unter Sensor- und Verhaltensunsicherheit. Der Systemnutzen wird in zahlreichen Längs- und Querverkehrssimulationen analysiert.
Measurements of Inclusive W/Z Production Cross Sections at CMS and W/Z as a Luminometer
Creators: name: Werner, Jeremy
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Leptonic decays of W/Z bosons provide the first electroweak precision measurements at the Large Hadron Collider (LHC). The results of measurements of inclusive W and Z boson production cross sections in pp collisions at $\sqrt{s}=7 \mathrm{TeV}$ are presented, based on 2.9 pb$^{-1}$ of data recorded by the Compact Muon Solenoid (CMS) detector at the LHC. The measurements, performed in the electron and muon decay channels, are combined to give $σ(\mathrm{pp} \rightarrow \mathrm{W}X) \times {\cal{B}}(\mathrm{W} \rightarrow \ell ν) = 9.95\pm0.07\,{\textrm{(stat.)}}\pm 0.28\,{\textrm{(syst.)}}\pm1.09\,{\textrm{(lumi.)}} \mathrm{nb}$ and $σ(\mathrm{pp} \rightarrow \mathrm{Z}X) \times {\cal{B}}(\mathrm{Z} \rightarrow \ell^+ \ell^-) = 0.931\pm0.026\,{\textrm{(stat.)}}\pm 0.023\,{\textrm{(syst.)}}\pm0.102\,{\textrm{(lumi.)}} \mathrm{nb}$, where $\ell$ stands for either $\mathrm{e}$ or $μ$. Theoretical predictions, calculated at the next-to-next-to-leading order (NNLO) in QCD using recent parton distribution functions (PDFs), are in agreement with the measured cross sections. Hence copious production of these well understood and clean signatures suggest the use of W/Z as a "standard candle" for measuring the luminosity at the LHC alongside the current Van der Meer (VdM) separation scan method.
description: presented at the LHC Lumi Days: LHC Workshop on LHC Luminosity Calibration, 13-14 January 2011, CERN, Geneva, Switzerland
Methodische Entwicklung hochintegrierter mechatronischer Systeme am Beispiel eines humanoiden Roboters
Creators: name: Brudniok, Sven
Publisher: name: Karlsruhe
Year: 2007

description: Der Inhalt ist ein Vorgehensmodell für die Entwicklung von mechatronischen Systemen am Beispiel eines humanoiden Roboters (ARMAR lll). Dieses ist an hochintegrierte Systeme angepasst, die über einen aufgrund der Wechselwirkungen dominierenden mechanischen Anteil verfügen. Dies ermöglicht eine hierarchische Gliederung in Teilsysteme und das Erkennen interner Wechselwirkungen. Das Vorgehensmodell bildet den Entwicklungsprozess von komplexen Systemen auf wiederholbaren Einzelschritten ab.
The evolutionary genomics of adaptation and speciation in the threespine stickleback
Creators: name: Samuk, Kieran Mikhail
Publisher: name: University of British Columbia
Year: 2016

description: Speciation and adaptation are key processes in biological evolution. Speciation creates genealogically discrete lineages, whereas adaptation causes organisms to become better matched to their environments. In this thesis, I conducted three studies that advanced our knowledge of speciation or adaptation. All three studies made use of a unique study system: threespine stickleback – small fish found in marine and fresh waters throughout the northern hemisphere. I first explored the potential of a newly-discovered “white” form of threespine stickleback for studying the early phases of speciation. Using a variety of population genomic methods, I showed that white stickleback are genetically distinct from other marine stickleback, and diverged recently in the face of substantial gene flow. These features make white stickleback an excellent system for studying the early phases of speciation. Next, I used white stickleback to examine the role of sexual and trophic divergence in the early phases of speciation. Using morphological and isotopic data, I found evidence for only weak trophic differentiation between white and common stickleback. Instead, genetic differences between the two forms are concentrated on genomic regions that harbour genes with male-biased expression. This suggests that, apart from difference in body size, strong trophic differentiation may not be necessary in the early phases of speciation. The final study explored the role of gene flow in shaping the genomic architecture of adaptation. Theory predicts that when adaptation occurs in the face of gene flow, genomic architectures in which adaptive loci are localized in regions of low recombination will be favored over others. I tested this prediction by quantifying the correlation between recombination rate and the density of adaptive loci in pairs of stickleback populations that varied in their degree of gene flow. In line with theory, we found that adaptive loci were more like to be found in regions of low recombination when divergent selection and gene flow co-occurred. Together, the studies presented in this thesis provide new tools and significant advances in our understanding of speciation and adaptation.
Suchbasierte Strukturverbesserung objektorientierter Systeme
Creators: name: Seng, Olaf
Publisher: name: Karlsruhe
Year: 2007

description: Die Struktur von Softwaresystemen zerfällt aufgrund von nötigen
Anpassungen an eine sich verändernde Umwelt. Als Konsequenz der
sich verschlechternden Struktur werden weitere Änderungen des
Systems immer aufwändiger, es sei denn die Struktur wird vor den
Änderungen immer wieder verbessert.
In dieser Arbeit stellen wir ein Verfahren vor, das
Restrukturierungen bestimmt, die die Qualität der Struktur eines
gegebenen Systems verbessern.
Æstetiseringen dynamik
Creators: name: Fausing, Bent
Publisher: name: Akademisk kvarter | Academic Quarter
Year: 2019

description: The industrialization produces a veil in its aestheticization, and in this veil lies a criticism and heterotopia in its images of dreams. This is the dynamic duality in Walter Benjamin’s incomplete project, ‘Paris, Capital of the Ninetieth Century’. Benjamin deals especially with the passages. They are new architectural phenomena that connect streets through alleyways with shops. Passage has a more spacious meaning, pointing to the way Benjamin reads the metropolis. Passage means in Benjamin’s optics threshold or transition, namely between I and things, awakening and dream, potential and realization. ‘I and things’ are essential, when it comes to exhibitions of commodity, where things are made personal and particular. This personification or anthropomorphization plays a crucial role in Benjamin’s analysis of the metropolitan aesthetics. The article seeks to answer why and how Benjamin sought this path in his mapping of modernity’s aestheticization and finally how it manifests itself in relation to Benjamin’s theory during the National Socialism’s aesthetics of politics and later in the digital passages of late modernity as commodity aesthetics driven by algorithms.
description: Akademisk kvarter | Academic Quarter, No 19 (2019): Æstetisering | Aestheticization
Quantum Resonance Theory (QRT): A Mathematical Framework for Unified Quantum Mechanics
Creators: name: Anson, Amber
Publisher: name: Zenodo
Year: 2024
Subjects: Artificial Intelligence

description: Quantum Resonance Theory (QRT) leverages resonance as a unifying mechanism between quantum mechanics and general relativity, introducing a time-dependent resonance term to link quantum states with gravitational effects. This refined framework presents precise mathematical formulations, quantifiable experimental predictions, and actionable setups. QRT bridges micro and macro scales, with implications for quantum computing, particle physics, and gravitational wave analysis, offering a testable path toward unified physics.
Radial Mixing due to Spiral-Bar Resonance Overlap: Implications to the Milky Way
Creators: name: Minchev, I.
name: Famaey, B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have recently identified a previously unknown radial migration mechanism resulting from the overlap of spiral and bar resonances in galactic discs (Minchev & Famaey 2010, Minchev et al. 2010). This new mechanism is much more efficient than mixing by transient spirals and its presence is unavoidable in all barred galaxies, such as our own Milky Way. The consequences of this are a strong flattening in the metallicity gradient in the disc, an extended disc profile, and the formation of a thick disc component, all taking place in only a couple of Gyr. This timescale is drastically shorter than previously expected and thus can put strong constraints on the longevity, strength and pattern speeds of the Galactic bar and Spiral Structure.
description: 4 pages, 2 figures, presented at ELSA 2010: Gaia, at the frontiers of astrometry, 7-11 June 2010, S\`evres, Paris; To published in EAS Series; Proceedings editors: C. Turon, F. Arenou & F. Meynadier
Valence and sea contributions to the nucleon spin
Creators: name: Shevchenko, O. Yu.
name: Akhunzyanov, R. R.
name: Lavrentyev, V. Yu.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The first moments of the polarized valence parton distribution functions (PDFs) truncated to the wide Bjorken $x$ region $0.004
description: 14 pages; added references
D3.1 Design Methodologies Strengths and Weaknesses
Creators: name: Haslinger, Edith
name: Lauermann, Michael
name: Witte, Henk
Publisher: name: Zenodo
Year: 2020
Subjects: geothermal
heat transport
ground heat exchangers
conduction
calculation methods
numerical modeling
design software

description: In this deliverable the main fundamental processes of heat transport relevant to the ground heat exchangers have been described. For the purpose of the project, only heat transport due to conduction will be considered in detail. There is abundant literature concerning methods to calculate the thermal response of ground heat exchangers and design. Using a few selected references an introduction to analytical and numerical methods is presented. A description of the different implementations of analytical and numerical modeling and design software codes is presented as well. The different methods are classified for strengths and weaknesses based on criteria including methodology, complexity, number of input parameters required, processes considered, flexibility with regard to geology and parameters relating to the actual ground heat exchanger. The aim has not been to arrive at a ranking, but only at an overview of the capabilities of the codes and the ease or complexity of use. Cost is of course also an important aspect but is currently not included. Based on the overview of different methodologies and implementations a roadmap for the development of the GHEX engineering tool within the work package has been defined. This roadmap is based on the expertise of the different partners and works from a detailed level, using the results to derive simplified models that can be integrated into a final engineering design tool.
Identitet og æstetisering
Creators: name: Friberg, Carsten
Publisher: name: Akademisk kvarter | Academic Quarter
Year: 2019

description: Identity is related to aesthetics as a discipline for forming individuals. However, difficulties arise as to whether identity concerns the person present or a true and authentic person behind the appearance; whether it is the spiritual or the bodily presence. Aesthetics related to the sensorial and bodily faculties is about how cultural formations exercise an influence on us. Aesthetics applied to cultural formation is discussed as aestheticization. Gernot Böhme suggests with his critique of aesthetic economy that today aestheticization should not be seen as a superficial beautification of the environment, but rather as a reality for individualsused to form and present one’s identity. What could appear as an acceptance of the spurious surface should rather, with inclusion of Mario Perniola, be considered a different approach enabling a sensitive critique rather than a dogmatic rejection.
description: Akademisk kvarter | Academic Quarter, No 19 (2019): Æstetisering | Aestheticization
D4.1 Options and Selections of Heating/Cooling Components for Geothermal Retrofitting
Creators: name: Pieskä, Henrikki
Publisher: name: Zenodo
Year: 2020
Subjects: High-temperature cooling, Low-temperature heating, Radiant cooling, Radian heating, Condensation control, Thermal comfort, Energy efficiency, Building retrofit

description: This report provides description of the modelling work conducted on the pilot sites of Perugia and Sant Cugat. The pilot sites, the studied heating and cooling systems and the used modelling software are described. Suggested low temperature heating and high temperature cooling system designs are simulated and in the case of Sant Cugat, the results are compared with the current situation and a comparable alternative. The results are presented and discussed. In the pilot site Perugia, the model was created to be used as a design tool by other partners in the project. In the pilot site Sant Cugat, the simulations show that for the primary school a low temperature heating system coupled with mechanical ventilation would improve indoor air quality with heating demand similar to the current system. For the sports pavilion a clear preference could not be established. The results also show that a high temperature cooling system would be a viable alternative for the administrative building and drastically reduce thermal discomfort. Finally, it was found that a comparative state-of-the-art all-air system that would achieve similar comfort would result in higher heating and cooling demand in all cases. The future works in this task will include work on the Aran Islands pilot.
Trypetidae
Creators: name: Mailoch, J. R.
Publisher: name: Zenodo
Year: 1942
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Trypetidae

description: FAMILY TRYPETIDAE There are but four genera, each represented by a single species, in this collection. Three appear to be unclescribecl, and the fourth is a widely spread Old Worlcl species.
description: Published as part of Mailoch, J. R., 1942, Trypetidae, Otitidae, Helomyzidae, And Clusiidae of Guam (Diptera), pp. 201-210 in Insects of Guam I, Honolulu, Hawaii :Bernice P. Bishop Museum on page 201, DOI: 10.5281/zenodo.5163626
Protocol for Evaluation of Cyclin D1 Expression in Tumor Tissue and Surgical Margins in Oral Squamous Cell Carcinoma – A Retrospective Study
Creators: name: Dr. Ankita Chavhan1, Dr. Swati Patil2, Dr. Madhuri Gawande3 , Dr. Alka Hande4, Dr. Archana Sonone5, Dr. Aayushi Pakhale6
Publisher: name: Zenodo
Year: 2023
Subjects: Cyclin d1, Cell proliferation, Oral potential malignant disorder, Oral squamous cell carcinoma, Immunohistochemistry

description: Introduction  Oral squamous cell carcinoma (OSCC) is a malignant epithelial tumor with poor prognosis, . There is increase in the proliferation of epithelial cells in OSCC which is control by cell cycle regulator like Cyclin D1[9] Cyclin D1 is linked to a poor prognosis for patients, including aggressive malignancies, recurrence, protracted remission, etc[3]. Objectives To evaluate Cyclin D1 immunoexpression in different grades and surgical margins in OSCC. Methodology All tissue sections will be proceed for Cyclin D1 IHC. After that light microscopic evaluation of Cyclin D1 expression was classified as weak (scoring 1-4), moderate (score 5-8), or strong based on a final expression score that was obtained by multiplying the labelling index score by the intensity score (score 9–12). Expected results  The present study will find the immunohistochemical expression of Cyclin D1 in OSCC. There will be variation in the immunoexpression of Cyclin D1 among different grades of OSCC its surgical margin and normal oral mucosa. Conclusion We hypothesize that: As the disease condition goes towards poor grade, intensity of cyclin D1 expression immunohistochemically may increased. So it can be used as prognostic marker. Keywords* Cyclin d1, Cell proliferation,Oral potential malignant disorder, Oral squamous cell carcinoma, Immunohistochemistry
Development of SOA-Based Software Systems - an Evolutionary Programming Approach
Creators: name: Emig, Christian
name: Weisser, Jochen
name: Abeck, Sebastian
Publisher: name: Karlsruhe
Year: 2006

description: A software application has strong relationships with the business processes it supports. In the analysis phase those parts of the processes in which the software system is applied by its future users are analyzed. Taking an object-oriented approach, the Unified Modeling Language (UML) is often used to model the relevant aspects of the business processes. In the design phase these models must be manually mapped to the business layer of the software application. The Service-Oriented Architecture (SOA) offers a promising new approach: The business process is described in a programming language [1], i.e. a process language which can be automatically mapped to an execution language and executed by a process engine. This article shows how Programming in the Large can be practically applied in a software engineering process. The Business Process Model Notation (BPMN) is used as a process programming language. A BPMN description can be mapped to the widely accepted Business Process Execution Language (BPEL).
On interrelations between Sibgatullin's and Alekseev's approaches to the construction of exact solutions of the Einstein-Maxwell equations
Creators: name: Ernst, F. J.
name: Manko, V. S.
name: Ruiz, E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The integral equations involved in Alekseev's "monodromy transform" technique are shown to be simple combinations of Sibgatullin's integral equations and normalizing conditions. An additional complex conjugation introduced by Alekseev in the integrands makes his scheme mathematically inconsistent; besides, in the electrovac case all Alekseev's principal value integrals contain an intrinsic error which has never been identified before. We also explain how operates a non-trivial double-step algorithm devised by Alekseev for rewriting, by purely algebraic manipulations and in a different (more complicated) parameter set, any particular specialization of the known analytically extended N-soliton electrovac solution obtained in 1995 with the aid of Sibgatullin's method.
description: 7 pages, no figures, section II extended
The synergistic benefits of combining innate immune stimulators into nanoparticle adjuvants for intradermal vaccination
Creators: name: Franco, Juan F Hernandez
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Innate immunity
Tumour immunology
Immunology not elsewhere classified

description: The study presented within demonstrates that Nano-11, a plant-derived nanoparticle adjuvant, can be utilized in conjunction with innate immune stimulators, including the TLR3 agonist poly(I:C) and the STING agonist cyclic-di-AMP, to provoke enhanced immune responses when administered through intradermal vaccines. The study demonstrated that the utilization of a combination adjuvant consisting of Nano-11 and a synthetic STING agonist, ADU-S100, in intradermal vaccination exhibited dose-sparing characteristics and resulted in enhanced immunity in both mice and pigs when compared to intramuscular immunization. The utilization of Nano-11-based adjuvant technology has demonstrated both prophylactic and therapeutic efficacy in mouse models of lymphoma and melanoma. The proposed adjuvant platform for intradermal vaccines, which is based on Nano-11, aims to enhance the accessibility of vaccines for the purposes of controlling infectious diseases and cancers.
SOA-aware Authorization Control
Creators: name: Emig, Christian
name: Schandua, Heiko
name: Abeck, Sebastian
Publisher: name: Karlsruhe
Year: 2006

description: The question how to handle authorization of digital identities in a service-oriented architecture (SOA) remains an open issue. In this paper we present a design pattern for the integration of legacy systems with SOA using out-of-the-box (unmodified) application servers and discuss how the architecture has to be extended by an Identity Management (IdM) infrastructure. We claim that the IdM infrastructure itself must be designed in a service-oriented way to fit into the overall SOA approach. We introduce a possibility how to decouple the policy enforcement point from the application server and propose an architectural design pattern to seamlessly integrate the SOAs business-related functionality and the IdM infrastructure. An implementation case study illustrates how to apply the invocation pattern for secured web services.
Kunsten som basis
Creators: name: Svendsen, Erik
Publisher: name: Akademisk kvarter | Academic Quarter
Year: 2019

description: Poul Henningsen is part of the Danish canon. The lampoon Hvad med kulturen? (What about culture? 1933) is his chief work and it highlights many of the crucial thoughts in the architect’s, the writer’s and the song writer’s production. However, the title of the intense little book is misleading, as the polemic text rather deals with art, and how the contemporary form experimental art (for example cubism) should be a guiding principle for a progressive culture policy. A point of the article is that What about culture? has far from mellowed. In that way the book and PH are a concise expression of the political and societal tensions that dominant in the 1930s.
description: Akademisk kvarter | Academic Quarter, No 19 (2019): Æstetisering | Aestheticization
Thick disk accretion in Kerr space-time with arbitrary spin parameters
Creators: name: Bambi, Cosimo
name: Yoshida, Naoki
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this paper we extend our previous works on spherically symmetric accretion onto black holes and super-spinars to the case in which the fluid has a finite angular momentum initially. We run 2.5D and 3D general relativistic hydrodynamic simulations of the accretion of a fat disk. We study how the accretion process changes by changing the values of the parameters of our model. We show that the value of the fluid angular momentum critically determines turn-on and off the production of powerful equatorial outflows around super-spinars. For corotating disks, equatorial outflows are efficiently generated, even for relatively low spin parameters or relatively large super-spinar radii. For counterrotating disks, equatorial outflows are instead significantly suppressed, and they are possible only in limited cases. We also study accretion around a tilted disk.
description: 11 pages, 10 figures
Zugriffskontrolle in dienstorientierten Architekturen
Creators: name: Emig, Christian
Publisher: name: Karlsruhe
Year: 2008

description: Diese Arbeit zeigt, wie Zugriffskontrolle im Kontext Webservice-basierter dienstorientierter Architekturen umgesetzt werden kann. Dazu wird zunächst eine querschnittlich nutzbare, dienstorientierte Zugriffskontroll-Architektur entwickelt, die eine Erweiterung der dienstorientierten Fach-Architektur darstellt. Parallel wird ein Zugriffskontroll-Modell und eine zugehörigen Policy-Sprache spezifiziert sowie die Einbettung in einen modellgetrieben Software-Entwicklungsprozess geschaffen.
$D$ to $K$ semileptonic decay form factors from HISQ light and charm quarks
Creators: name: Na, H.
name: Davies, C. T. H.
name: Follana, E.
name: Lepage, P.
name: Shigemitsu, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present a study of $D \rightarrow K, l ν$ semileptonic decays on the lattice which employs the HISQ action for both the charm and the light quarks. We work with MILC unquenched $N_f = 2 + 1$ lattices and determine the scalar form factor $f_0(q^2)$. This form factor is obtained from a scalar current matrix element that does not require any operator matching. We find $f^{D \rightarrow K}_0(0) \equiv f^{D \rightarrow K}_+(0) = 0.747(19)$ in the chiral plus continuum limit and hereby improve the theory error on this quantity by a factor of $\sim$4 compared to previous lattice determinations. Combining the new theory result with recent experimental measurements of the product $f^{D \rightarrow K}_+(0) * |V_{cs}| $ from BaBar and CLEO-c leads to a very precise direct determination of the CKM matrix element $|V_{cs}| $, $|V_{cs}| = 0.961(11)(24)$, where the first error comes from experiment and the second is the lattice QCD theory error.
description: 7 pages, 6 figures, and 1 table. Talk given at Lattice 2010, June 14-19, 2010, Villasimius, Italy
External Bias Dependent Direct To Indirect Bandgap Transition in Graphene Nanoribbon
Creators: name: Majumdar, Kausik
name: Murali, Kota V. R. M.
name: Bhat, Navakanta
name: Lin, Yu-Ming
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work, using self-consistent tight-binding calculations, for the first time, we show that a direct to indirect bandgap transition is possible in an armchair graphene nanoribbon by the application of an external bias along the width of the ribbon, opening up the possibility of new device applications. With the help of Dirac equation, we qualitatively explain this bandgap transition using the asymmetry in the spatial distribution of the perturbation potential produced inside the nanoribbon by the external bias. This is followed by the verification of the bandgap trends with a numerical technique using Magnus expansion of matrix exponentials. Finally, we show that the carrier effective masses possess tunable sharp characters in the vicinity of the bandgap transition points.
description: Accepted for publication in Nano Letters