cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: PerAWaT - Report on the Inclusion of FDC Tidal Arrays into DG-ADCIRC Model (WG3 WP6 D5)
Creators: name: Serhadlioglu, S.
name: Adcock, T.A.A.
name: Houlsby, G.T.
name: Borthwick, A.G.L.
Publisher: name: ETI
Year: 2012
Subjects: subject: Marine
subject: RENEWABLE ENERGY SOURCES (Ocean Energy)

description: The Performance Assessment of Wave and Tidal Array Systems (PerAWaT) project, launched in October 2009 with £8m of ETI investment.The project delivered validated, commercial software tools capable of significantly reducing the levels of uncertainty associated with predicting the energy yield of major wave and tidal stream energy arrays. It also produced information that will help reduce commercial risk of future large scale wave and tidal array developments.

WG3 WP6 D5 aims to present the methodology used to describe the fundamental device concept (FDC) tidal arrays in numerical models created for the M2 tidal constituent.The report first introduces the two-dimensional Shallow Water Equations (SWEs) and the chosen numerical method (discontinuous Galerkin finite element method) used to solve these equations.The methodology is then explained for couplingLinear Momentum Actuator Disc theory (LMADT) to the two-dimensional hydrodynamic model DG-ADCIRC by means of including a line sink of momentum within the discontinuous Galerkin scheme.The verification of the algorithm is undertaken for a number of problems where an array of tidal devices is located in an idealised channel, with different configurations and problem settings.Lastly, preliminary results are given for the Anglesey Skerries, using the modified DGADCIRC code that uses LMADT tocalculate the relevant line sink of momentum in the solution domain
title: PerAWaT - Comparison with EDF (WG3 WP6 D6)
Creators: name: Adcock, T.A.A.
name: Serhadlioglu, S.
name: Houlsby, G.T.
Publisher: name: ETI
Year: 2013
Subjects: subject: Marine
subject: RENEWABLE ENERGY SOURCES (Ocean Energy)

description: The Performance Assessment of Wave and Tidal Array Systems (PerAWaT) project, launched in October 2009 with £8m of ETI investment.The project delivered validated, commercial software tools capable of significantly reducing the levels of uncertainty associated with predicting the energy yield of major wave and tidal stream energy arrays. It also produced information that will help reduce commercial risk of future large scale wave and tidal array developments.

This deliverable provides a comparison between the numerical model of the Pentland Firth developed by EDF and that developed by University of Oxford.The models show good agreement in the tidal dynamics outside of Pentland Firth.Each model uses different parameters for seabed coefficient resulting in small differences within the Pentland Firth.There are significant differences in the way the tides are modelled making it difficult to compare predicted power using different turbine configurationsThere is insufficient field data available to determine which model is better reproducing the real tidal dynamics.There appears to be general agreement as to the magnitude of the powers each of the models are producing.However, a detailed comparison of the differing methodologies for the implementation of tidal turbines is difficult because of the differences in the modelling of the tidal dynamics within the Pentland Firth.
title: PerAWaT - Report on Characterisation and Assessment of the Availability of Resource at Example UK Sites (WG3 WP6 D7)
Creators: name: Serhadlioglu, S.
name: Adcock, T.A.A.
name: Houlsby, G.T.
name: Borthwick, A.G.L.
Publisher: name: ETI
Year: 2013
Subjects: subject: Marine
subject: RENEWABLE ENERGY SOURCES (Ocean Energy)

description: The Performance Assessment of Wave and Tidal Array Systems (PerAWaT) project, launched in October 2009 with £8m of ETI investment.The project delivered validated, commercial software tools capable of significantly reducing the levels of uncertainty associated with predicting the energy yield of major wave and tidal stream energy arrays. It also produced information that will help reduce commercial risk of future large scale wave and tidal array developments.

This report provides a characterisation and assessment of the availability of tidal resource at example sitees across the UK.The analysis is extended to show the change in the local flow field by considering the M2 tide, which is representative of an average tidal cycle occurring in the UK waters. It is not intended in this work package to evaluate the optimum array configurations to generate the maximum power ateach site. This work package mainly focuses on developing and applying an elaborate numerical scheme for predicting maximum power that is available to arrays of turbines, modelled as momentum sinks using Linear Momentum Actuator Disk theory.

In this report we have modelled the inclusion of tidal turbines at a headland site (Anglesey), an estuary site (Bristol Channel), and a strait (Pentland Firth). Similar methodologies have been successfully applied to the various different sites.The available power has been analysed at all sites and the hydrodynamic effect of including turbines analysed. It is found that when significant power is extracted there is a substantial change to the current at a site, but that the hydrodynamic changes are confined to vicinity of the site
title: PerAWaT - Report on Assessment of the Impact of Energy Extraction for the Horizontal Axis Tidal Turbine on Large Scale Tidal Characteristics at Example UK Sites (WG3 WP6 D8)
Creators: name: Serhadlioglu, S.
name: Adcock, T.A.A.
name: Houlsby, G.T.
name: Borthwick, A.G.L.
Publisher: name: ETI
Year: 2013
Subjects: subject: Marine
subject: RENEWABLE ENERGY SOURCES (Ocean Energy)

description: The Performance Assessment of Wave and Tidal Array Systems (PerAWaT) project, launched in October 2009 with £8m of ETI investment.The project delivered validated, commercial software tools capable of significantly reducing the levels of uncertainty associated with predicting the energy yield of major wave and tidal stream energy arrays. It also produced information that will help reduce commercial risk of future large scale wave and tidal array developments.

This deliverable focuses on the large-scale changes to the tidal hydrodynamics from the extraction of energy using tidal stream turbines. Large scale in this context means at larger scales than the wake behind an individual tidal turbine.The sites studied in this project are Pentland Firth, Anglesey and Bristol Channel.The report concludes that there are near field impacts (turbines cause reduction in flow), butno far field impacts (say between Anglesey and Bristol Channel). Environmental impact is outside the scope of the report
Mass-Radius Relation for Rocky Planets based on PREM
Creators: name: Zeng, Li
name: Sasselov, Dimitar
name: Jacobsen, Stein
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Several small dense exoplanets are now known, inviting comparisons to Earth and Venus. Such comparisons require translating their masses and sizes to composition models of evolved multi-layer-interior planets. Such theoretical models rely on our understanding of the Earth's interior, as well as independently derived equations of state (EOS), but have so far not involved direct extrapolations from Earth's seismic model -PREM. In order to facilitate more detailed compositional comparisons between small exoplanets and the Earth, we derive here a semi-empirical mass-radius relation for two-layer rocky planets based on PREM: ${\frac{R}{R_\oplus}} = (1.07-0.21\cdot \text{CMF})\cdot (\frac{M}{M_\oplus})^{1/3.7}$, where CMF stands for Core Mass Fraction. It is applicable to 1$\sim$8 M$_{\oplus}$ and CMF of 0.0$\sim$0.4. Applying this formula to Earth and Venus and several known small exoplanets with radii and masses measured to better than $\sim$30\% precision gives a CMF fit of $0.26\pm0.07$.
description: 3 figures, 2 tables, ApJ, accepted
title: PerAWaT - Identification of Test Requirements and Physical Model Design (WG4 WP1 D1)
Creators: name: Buvat, C.
name: Martin, V.
Publisher: name: ETI
Year: 2010
Subjects: subject: Marine
subject: RENEWABLE ENERGY SOURCES (Ocean Energy)

description: The Performance Assessment of Wave and Tidal Array Systems (PerAWaT) project, launched in October 2009 with £8m of ETI investment.The project delivered validated, commercial software tools capable of significantly reducing the levels of uncertainty associated with predicting the energy yield of major wave and tidal stream energy arrays. It also produced information that will help reduce commercial risk of future large scale wave and tidal array developments.

This document describes the scale model experiments required to investigate the performance and the wake of a scale model rotor in order to inform the development and validate numerical models used to predict the performance of a tidal turbine. Section 2 presents the requirements of this work package.The following sections include details of the scaling rationale, the experimental equipment and facilities, and theproposed testing programme. Information regarding the sub-contract to be in place to construct models is also provided.

The purpose of the scale model experiments described here is to investigate, through physical testing of a single device :the detailed hydrodynamic performance of rotors in turbulent flows,the effect of bounding surfaces on the device performance, andthe wake form and structures downstream of a tidal device, as a function of flow profile, depth and ambient turbulence.The experimental data will contribute to the development of numerical models within the project.They will help calibrate and validate WG3 WP1 (CFD numerical model Ansys Fluent).They will also provide information to WG3 WP4 (GH engineering tool) and WG3 WP5 (CFD numerical model Code_Saturne) and will increase the level of confidence of the models developed in these work packages.
Spillover study 1
Creators: name: Vesely, Stepan
name: Torfadóttir, Ragnheiður
name: Truelove, Heather
name: Klöckner, Christian Andreas
name: Whitmarsh, Lorraine
name: Amaris, Gloria
name: Thøgersen, John
Publisher: name: OSF Registries
Year: 2022
Subjects: subject: Social and Behavioral Sciences

description: Mediators and moderators of environmental behavior spillover: A comprehensive approach
title: PerAWaT - Non-Linear Model Description Report (WG1 WP1 D7)
Creators: name: Taylor, P.H.
name: Eatock Taylor, R.
Publisher: name: ETI
Year: 2010
Subjects: subject: Marine
subject: RENEWABLE ENERGY SOURCES (Ocean Energy)

description: The Performance Assessment of Wave and Tidal Array Systems (PerAWaT) project, launched in October 2009 with £8m of ETI investment.The project delivered validated, commercial software tools capable of significantly reducing the levels of uncertainty associated with predicting the energy yield of major wave and tidal stream energy arrays. It also produced information that will help reduce commercial risk of future large scale wave and tidal array developments.

This report introduces the methodology to be used for assessing the fully nonlinear hydrodynamic response of wave energy converters (single devices and arrays of point absorbers). It describes the key steps for implementing the boundary element potential flow model OXPOT, addressing issues such as the formulation of higher order elements and discontinuous elements, mesh generation and regridding, use of an artificial damping layer, time stepping, and the use of domain decomposition to improve computational efficiency. Examples of implementation of the model are given, including comparison of results with experimental data.

 Additionally, by way of introduction, the report briefly raises some technical issues which might be addressed in the development of a design methodology for wave energy converters. Several of these were investigated in the course of obtaining results reported in subsequent deliverables.

Furthermore, the report also outlines the intended stages of applying the nonlinear methodology, including the evaluation of a range of cases of increasing realism and complexity. Consideration is also given to modelling the behaviour of wave energy converters in both regular and irregular seas.

Issues of validation are to be addressed through comparison withexperimental results from WG2 WP1 and WG2 WP2.The results for the nonlinear model will then be used in an assessment of the accuracy of linear models applied to various scenarios.
The reachable set of single-mode unstable quadratic Hamiltonians
Creators: name: Shackerley-Bennett, Uther
name: Pitchford, Alexander
name: Genoni, Marco G.
name: Serafini, Alessio
name: Burgarth, Daniel K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The question of open-loop control in the Gaussian regime may be cast by asking which Gaussian unitary transformations are reachable by turning on and off a given set of quadratic Hamiltonians. For compact groups, including finite dimensional unitary groups, the well known Lie algebra rank criterion provides a sufficient and necessary condition for the reachable set to cover the whole group. Because of the non-compact nature of the symplectic group, which corresponds to Gaussian unitary transformations, this criterion turns out to be still necessary but not sufficient for Gaussian systems. If the control Hamiltonians are unstable, in a sense made rigorous in the main text, the peculiar situation may arise where the rank criterion is satisfied and yet not all symplectic transformations are reachable. Here, we address this situation for one degree of freedom and study the properties of the reachable set under unstable control Hamiltonians. First, we provide a partial analytical characterisation of the reachable set and prove that no orthogonal (`energy-preserving' or `passive' in the literature) symplectic operations may be reached with such controls. Then, we apply numerical optimal control algorithms to demonstrate a complete characterisation of the set in specific cases.
description: 12 pages
van der Waals Heterostructures of Germanene, Stanene and Silicene with Hexagonal Boron Nitride and Their Topological Domain Walls
Creators: name: Wang, Maoyuan
name: Liu, Liping
name: Liu, Cheng-Cheng
name: Yao, Yugui
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate van der Waals (vdW) heterostructures made of germanene, stanene or silicene with hexagonal Boron Nitride (h-BN). The intriguing topological properties of these buckled honeycomb materials can be maintained and further engineered in the heterostructures, where the competition between the substrate effect and external electric fields can be used to control the tunable topological phase transitions. Using such heterostructures as building blocks, various vdW topological domain walls (DW) are designed, along which there exist valley polarized quantum spin Hall edge states or valley-contrasting edge states which are protected by valley(spin)- resolved topological charges and can be tailored by the patterning of the heterojunctions and by external fields.
description: 8 pages, 6 figures, to appear in prb
Ask avoidance, social norms and moral balancing in the environmental domain
Creators: name: Thøgersen, John
name: Ibanez, Lisette
name: Fanghella, Valeria
Publisher: name: OSF Registries
Year: 2022
Subjects: subject: Behavioral Economics
subject: Economics
subject: Agricultural and Resource Economics
subject: Social and Behavioral Sciences

description: Avoiding sharing requests allows individuals to behave selfishly while preserving their moral self-image. This type of behavior has been widely documented in the domain of prosociality, but evidence is limited on the extent to which it applies also in the domain of environmental conservation. This study addressed this gap by investigating: (i) whether individuals avoid the requests to behave pro-environmentally, (ii) to what extent social influence affects request avoidance, (iii) the interplay between request avoidance and moral balancing.
title: PerAWaT - Array Scale Experiment Specification (WG4 WP2 D1)
Creators: name: Whelan, J.
name: Stallard, T.
Publisher: name: ETI
Year: 2010
Subjects: subject: Marine
subject: RENEWABLE ENERGY SOURCES (Ocean Energy)

description: The Performance Assessment of Wave and Tidal Array Systems (PerAWaT) project, launched in October 2009 with £8m of ETI investment.The project delivered validated, commercial software tools capable of significantly reducing the levels of uncertainty associated with predicting the energy yield of major wave and tidal stream energy arrays. It also produced information that will help reduce commercial risk of future large scale wave and tidal array developments.

This document describes the scale model experiments required to investigate array scale blockage and wake effects in order to develop the mathematical models used to predict the influenced flow field in and around tidal turbine arrays. Details of the scaling rationale, the experimental equipment and facilities and the proposed testing programme are described.The purpose of the scale model experiments described here is to provide experimental data to develop and validate the mathematical models that will be developed as part of WG3WP4. This includes measurement of turbine performance and of wake characteristics both downstream of individual devices and downstream of an array of devices.The programme of tests improved understanding of how bounding surface proximity influences both turbine performance and wake structure.
Theoretical reevaluations of the black hole mass - bulge mass relation - I. Effect of the seed black hole mass
Creators: name: Shirakata, Hikari
name: Kawaguchi, Toshihiro
name: Okamoto, Takashi
name: Makiya, Ryu
name: Ishiyama, Tomoaki
name: Matsuoka, Yoshiki
name: Nagashima, Masahiro
name: Enoki, Motohiro
name: Oogi, Taira
name: Kobayashi, Masakazu A. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We explore the effect of varying the mass of the seed black hole on the resulting black hole mass - bulge mass relation at z ~ 0, using a semi-analytic model of galaxy formation combined with large cosmological N-body simulations. We constrain our model by requiring the observed properties of galaxies at z ~ 0 are reproduced. In keeping with previous semi-analytic models, we place a seed black hole immediately after a galaxy forms. When the mass of the seed is set at 10^5 M_sun, we find that the model results become inconsistent with recent observational results of the black hole mass - bulge mass relation for dwarf galaxies. In particular, the model predicts that bulges with ~ 10^9 M_sun harbour larger black holes than observed. On the other hand, when we employ seed black holes with 10^3 M_sun, or randomly select their mass within a 10^(3-5) M_sun range, the resulting relation is consistent with observation estimates, including the observed dispersion. We find that to obtain stronger constraints on the mass of seed black holes, observations of less massive bulges at z ~ 0 are a more powerful comparison than the relations at higher redshifts.
description: 6 pages, 2 tables, 4 figures. Accepted for publication by MNRAS Letter
Sleep and Electronic Media Use: A Scoping Review of Reviews
Creators: name: De Terte, Ian
name: Peters, Jonathan Bosco Alexander
name: Signal, Leigh
name: Bernerius, Egidia
name: Kilding, Helen
Publisher: name: OSF Registries
Year: 2021
Subjects: subject: Psychiatry and Psychology
subject: Public Health
subject: Medicine and Health Sciences
subject: International Public Health
subject: Mental and Social Health
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Psychological Phenomena and Processes
subject: Electronic Media
subject: Review of Reviews
subject: Scoping Rview
subject: Sleep

description: Over the past decade there has been increasing scientific interest and investigation into the relationship between sleep and electronic media use. During this time the focus of this research has branched into various specific aspects of electronic media use (e.g. screen time, television, social media) and similarly various definitions of associated pathology (e.g. internet addiction, internet gaming addiction, problematic smartphone use). This study is a scoping review of reviews. Its aim is to map these branches of research into electronic media use and summarise their studied relations to the five aspects of sleep health proposed by Buysse (2014) (duration, efficiency, timing, quality, and daytime functioning). It will serve and the seed for integration of this diffuse research field and a starting point for further research into this important aspect of wellbeing.
Dissipation bounds all steady-state current fluctuations
Creators: name: Gingrich, Todd R.
name: Horowitz, Jordan M.
name: Perunov, Nikolay
name: England, Jeremy
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Near equilibrium, small current fluctuations are described by a Gaussian with a linear-response variance regulated by the dissipation. Here, we demonstrate that dissipation still plays a dominant role in structuring large fluctuations arbitrarily far from equilibrium. In particular, we prove a linear-response-like bound on the large deviation function for currents in Markov jump processes. We find that nonequilibrium current fluctuations are always more likely than what is expected from a linear-response analysis. As a small-fluctuations corollary, we derive a recently-conjectured uncertainty bound on the variance of current fluctuations.
description: 5 pages, 3 figures
title: Theorising revolution, apprehending civil war: leftist political practice and analysis in Lebanon (1969–79)
title: LSE Middle East Centre paper series, 16
titleType: Other
Creators: name: Bardawil, Fadi
Publisher: name: London School of Economics and Political Science (LSE)
Year: 2016
Subjects: subject: J Political science
subject: JA Political science (General)
subject: D History General and Old World
subject: D History (General)
subject: D890 Eastern Hemisphere

description: In the wake of the Arab popular uprisings, this short piece revisits the thought of an earlier generation of revolutionaries. Unlike those today, who are united by the desire to overthrow authoritarian regimes but who come from competing ideological universes and conceptions of the political, this earlier generation of militants grounded political practice in a thick Marxist theoretical language. This paper focuses on the writings of Waddah Charara as well as the Marxist tradition of thought at the beginning of the Lebanese civil and regional wars (1975–1990). It highlights how Charara’s analysis rethought the question of power away from class politics in the wake of his diagnosis of the failure of hegemony in Lebanon.
KEBERKESANAN PROGRAM KEPIMPINAN JOHOR STUDENT LEADERS COUNCIL (JSLC) TAHUN 2018-2020
Creators: name: Syahidan
Publisher: name: figshare
Year: 2023
Subjects: Continuing and community education
Education policy
Educational administration, management and leadership

description: Kajian terhadap program ini dilakukan bertujuan untuk mengumpul maklumat dan pandangan daripada 50 ahli-ahli pemimpin muda program JSLC yang telah mengikuti beberapa siri latihan jangka pendek bermula dari tahun 2018 hingga tahun 2020 dan untuk mengenalpasti aspek keberkesanan program ini. Pengumpulan data kajian dilaksanakan melalui soal selidik menggunakan kaedah kuantitatif. Dapatan kajian tinjauan ini menunjukkan peserta berpuas hati dengan keseluruhan aspek Program JSLC ini. Dapatan kajian juga menunjukkan bahawa terdapat peningkatan yang signifikan dari segi pengetahuan dan teori kepimpinan, kemahiran kepimpinan, kemahiran komunikasi, kemahiran pengurusan projek dan kemahiran diplomasi bagi peserta sebelum menghadiri Program JSLC berbanding selepas program ini diselesaikan. Dapatan kajian juga menunjukkan bahawa aspek pengetahuan dan teori kepimpinan serta kemahiran komunikasi merupakan perkara yang paling banyak memberi impak positif dalam program ini yang dilihat oleh pelajar dapat membantu mereka memahami peranan dan tanggungjawab sebagai seorang pemimpin pelajar di sekolah. Ahli-ahli JSLC mampu secara positif mengaplikasikan pengetahuan dan kemahiran yang mereka peroleh menerusi aktiviti di peringkat sekolah selepas menghadiri program JSLC. Seterusnya, dapatan kajian menunjukkan bahawa kelebihan Program JSLC ini adalah berfokus kepada pengetahuan dan kemahiran yang mereka peroleh dan projek inisiatif yang mereka laksanakan.
Two-variable Logic with Counting and a Linear Order
Creators: name: Charatonik, Witold
name: Witkowski, Piotr
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We study the finite satisfiability problem for the two-variable fragment of first-order logic extended with counting quantifiers (C2) and interpreted over linearly ordered structures. We show that the problem is undecidable in the case of two linear orders (in the presence of two other binary symbols). In the case of one linear order it is NEXPTIME-complete, even in the presence of the successor relation. Surprisingly, the complexity of the problem explodes when we add one binary symbol more: C2 with one linear order and in the presence of other binary predicate symbols is equivalent, under elementary reductions, to the emptiness problem for multicounter automata.
title: PerAWaT - Design of Equipment for Scale Model Experiments (WG4 WP2 D2)
Creators: name: Stallard, T.
Publisher: name: ETI
Year: 2010
Subjects: subject: Marine
subject: RENEWABLE ENERGY SOURCES (Ocean Energy)

description: The Performance Assessment of Wave and Tidal Array Systems (PerAWaT) project, launched in October 2009 with £8m of ETI investment.The project delivered validated, commercial software tools capable of significantly reducing the levels of uncertainty associated with predicting the energy yield of major wave and tidal stream energy arrays. It also produced information that will help reduce commercial risk of future large scale wave and tidal array developments.

The report explains the data required from experimental study of an array of tidal stream devices. Issues associated with scale of the experiments are discussed and an appropriate facility is identified in the form of the University of Manchester wide flume. This facility allows conduct of experiments at approximately 1:70th geometric scale which will provide the specified data concerning the effect of turbine spacing and ambient flow on wake structure and device loading. Topics covered includethe generation of ambient flow conditions,method of measurement of time-varying flow- and mechanical parameters,design of small-scale model of a tidal stream turbine anddesign of a rotor suitable for the low Reynolds number of these experiments.Engineering drawings are supplied for the main items of equipment. An explanation is given of how each of the required flow conditions – including steady flow with low turbulence intensity, steady flow with waves and increased levels of turbulence intensity and large scale eddies – will be generated. Although some aspects of equipment design may have been modified following preliminary manufacture and testing the equipment detailed represents the most suitable design choices at the time of writing. Following explanation of the experimental equipment, a brief outline is given of ongoing work at the time of writing.
Numerical Evaluation of Two-Loop Integrals in FDR
Creators: name: Zirke, Tom
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a method to numerically evaluate infrared-finite one- and two-loop integrals within the Four-Dimensional Regularization/Renormalization approach, in which a small mass serves as regulator. Typical integrals exhibit a logarithmic dependence on this mass, which we extract with the aid of suitable subtraction terms that can easily be integrated analytically until the logarithmic structure is revealed. As first physical applications to test the method, we calculate QCD corrections to the decay rates of scalar and pseudoscalar Higgs bosons into two photons in the limit of an infinite top-quark mass as well as to the $ρ$ parameter.
description: 18 pages, 2 figures, v2: minor corrections, citations added
title: PerAWaT - Calibration Report for Scale Model Experiments (WG4 WP2 D4)
Creators: name: Stallard, T.
name: Collings, R.
Publisher: name: ETI
Year: 2011
Subjects: subject: Marine
subject: RENEWABLE ENERGY SOURCES (Ocean Energy)

description: The Performance Assessment of Wave and Tidal Array Systems (PerAWaT) project, launched in October 2009 with £8m of ETI investment.The project delivered validated, commercial software tools capable of significantly reducing the levels of uncertainty associated with predicting the energy yield of major wave and tidal stream energy arrays. It also produced information that will help reduce commercial risk of future large scale wave and tidal array developments.

This report details calibration of the experimental flow conditions, rotor and electro-mechanical systems for the equipment described in WG4 WP2 D2. Measurements are presented of the flow structure, of the characteristic of the small-scale rotor and of the structure of the wake of a single turbine and pair of turbines.The information presented demonstrates that the planned turbine tests can be calibrated correctly.
Gravitational Effects on Measurements of the Muon Dipole Moments
Creators: name: Kobach, Andrew
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: If the technology for muon storage rings one day permits sensitivity to precession at the order of $10^{-8}$ Hz, the local gravitational field of Earth can be a dominant contribution to the precession of the muon, which, if ignored, can fake the signal for a nonzero muon electric dipole moment (EDM). Specifically, the effects of Earth's gravity on the motion of a muon's spin is indistinguishable from it having a nonzero EDM of magnitude $d_μ\sim 10^{-29}$ e cm in a storage ring with vertical magnetic field of $\sim$ 1 T, which is significantly larger than the expected upper limit in the Standard Model, $d_μ\lesssim 10^{-36}$ e cm. As a corollary, measurements of Earth's local gravitational field using stored muons would be a unique test to distinguish classical gravity from general relativity with a bonafide quantum mechanical entity, i.e., an elementary particle's spin.
description: 5 pages; corrected calculation, qualitative results unchanged
title: Characterisation of Feedstocks - D6 Final Report (Phase 1) - Appendix 10 - Part 3: Graphs for Willow SRC IFV study
Creators: name: Forest Research
Publisher: name: ETI
Year: 2017
Subjects: subject: Bioenergy
subject: RENEWABLE ENERGY SOURCES (Bio-Energy - Production of other biomass-derived fuels (incl. Production from wastes))

description: This document describes the characteristics of Willow SRC IFV in terms of moisture content, net and gross calorific value, dry ash content and its variability, dry nitrogen content, dry chlorine, barium, beryllium, chromium, cobalt, copper, molybdenum, nickel, vanadium, zinc, arsenic, antimony, mercury, cadmium, lead, fluorine, bromine, aluminium, calcium, iron, potassium, manganese, sodium, phosphorus, silicon and titanium content.

This document is one of the 13 appendices to the Final Report from the first Phase (2015/16) of the Characterisation of Feedstocks (CofF) project, the primary purpose of which is to provide an understanding of UK produced biomass properties, how these vary and what causes this variability.

The purpose of this report plus its related parts is to report the variability in feedstock properties of UK produced energy biomass, the causes of these variations and the relationship between the feedstock properties and the provenance data collected. Five feedstocks were studied: Miscanthus, willow short rotation coppice (SRC), poplar SRC, poplar grown as short rotation forests (SRF), and spruce SRF, with poplar and Sitka spruce selected to represent broadleaved and coniferous biomass crops respectively. Provenance data include site properties (such as general climate zone and soil chemistry), the conditions at the time of sample collection, and past management of the site and crop with soil samples also collected for analysis.The feedstock samples were analysed in UKAS accredited laboratories.
title: PerAWaT - Array Scale Experimental Test Report (WG4 WP2 D5)
Creators: name: Thomson, M.D.
name: Collings, R.
name: Stallard, T.
Publisher: name: ETI
Year: 2011
Subjects: subject: Marine
subject: RENEWABLE ENERGY SOURCES (Ocean Energy)

description: The Performance Assessment of Wave and Tidal Array Systems (PerAWaT) project, launched in October 2009 with £8m of ETI investment.The project delivered validated, commercial software tools capable of significantly reducing the levels of uncertainty associated with predicting the energy yield of major wave and tidal stream energy arrays. It also produced information that will help reduce commercial risk of future large scale wave and tidal array developments.

The purpose of the experiments of work package WG4WP2 is to investigate the hydrodynamic interactions of rotors when operating within arrays. Specifically the objectives of WG4WP2 were: to investigate the influence of bounding surfaces (free surface, seabed and other devices) on device performance and loading; to analysis the effect of the bounding surfaces, ambient flow field and device performance characteristicson the far wake form; and, to investigate wake interactions within an array under varying ambient conditions (seabed, waves and large eddies).

To achieve the set objectives a series of small-scale experiments of arrays of tidal stream turbine rotors were conducted in a wide channel.The tests were conducted at approximately 1:70th geometric scale using rotors that are specifically designed to produce similar momentum extraction to a generic full-scale rotor design.The experimental facility used enables the layout of various array configurations to be investigated along with different ambient flow conditions including surface waves, added seabed roughness and a large upstream island.

This deliverable, the final deliverable in WG4 WP2 presents a summary of the results of the University of Manchester experimental programme – investigating tidal arrays (up to15 devices in an array). A detailed test description is presented and methodologies of data acquisition and post processing are described. A description of the database of results is presented to enable the reader to interpret the raw data.The key findings of the experimental testing programme are discussed and it is confirmed that the final test schedule meets the requirements specified in WG4 WP2 D1
title: PerAWaT - Design and Specification of Ducted Disc Experiments (WG4 WP3 D1)
Creators: name: Stallard, T.
Publisher: name: ETI
Year: 2012
Subjects: subject: Marine
subject: RENEWABLE ENERGY SOURCES (Ocean Energy)

description: The Performance Assessment of Wave and Tidal Array Systems (PerAWaT) project, launched in October 2009 with £8m of ETI investment.The project delivered validated, commercial software tools capable of significantly reducing the levels of uncertainty associated with predicting the energy yield of major wave and tidal stream energy arrays. It also produced information that will help reduce commercial risk of future large scale wave and tidal array developments.

Simulations elsewhere in the project indicate that a rotor within a duct of outer diameter D experiences lower thrust on the rotor plane than a rotor of the same diameter. Experimental evaluation of the influence of duct augmentation on performance is essential to i) provide confidence in this finding and ii) demonstrate that the PerAwaT modelling tools are relevant to the fundamental device concepts presently in development (i.e. OpenHydro AND open-centre rotors).

This work package addresses the design and specification of a series of experiments to assess the validity of CFD predictions of the effect of turbine augmentation by a duct. CFD simulations are analysed to determine the range of local thrust coefficients over which a measurable performance difference is observed and appropriate disc porosities are identified.The equipment required to conduct disc, duct and rotor experiments is summarised and a sequence of tests is proposed
title: Versorgung multimorbider Patienten – Wie viel Evidenzbasis hat die klinische Expertise?
Creators: name: Muche-Borowski, C.
name: Lühmann, D.
name: Wagner, H.-O.
name: Hansen, H.
name: Schäfer, I.
name: Van Den Bussche, H.
name: Beyer, M.
name: Scherer, M.
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Hausärztliche Versorgung
subject: Leitlinien
subject: Multimorbidität
subject: 610 Medical sciences; Medicine

description: Hintergrund: Multimorbidität ist kein schicksalhafter Prozess, sondern im höheren Lebensalter ein sehr häufiges Phänomen und damit eine Herausforderung hinsichtlich der komplexen Versorgungsbedarfe. In der S3-Leitlinie „Multimorbidität“ wird ausgehend von Einzelfallvignetten,[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 50. Kongress für Allgemeinmedizin und Familienmedizin
title: Optimierung der Patientensicherheit bei Polypharmazie
Creators: name: Wilm, S.
name: Mortsiefer, A.
name: Kaufmann-Kolle, P.
name: Forschungsverbund H I O P P
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Multimorbidität
subject: Patientensicherheit
subject: Polypharmazie
subject: 610 Medical sciences; Medicine

description: Hintergrund: In Deutschland wenden etwa 36 % der über 65-Jährigen und 42 % der über 85-Jährigen mehr als 5 Arzneimittel gleichzeitig an und unterliegen damit einer sog. Polypharmazie. Unabhängig davon, ob dies medizinisch tatsächlich geboten ist, nimmt mit steigender[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 50. Kongress für Allgemeinmedizin und Familienmedizin
On the Hamiltonian integrability of the bi-Yang-Baxter sigma-model
Creators: name: Delduc, Francois
name: Lacroix, Sylvain
name: Magro, Marc
name: Vicedo, Benoit
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The bi-Yang-Baxter sigma-model is a certain two-parameter deformation of the principal chiral model on a real Lie group G for which the left and right G-symmetries of the latter are both replaced by Poisson-Lie symmetries. It was introduced by C. Klimcik who also recently showed it admits a Lax pair, thereby proving it is integrable at the Lagrangian level. By working in the Hamiltonian formalism and starting from an equivalent description of the model as a two-parameter deformation of the coset sigma-model on G x G / G_diag, we show that it also admits a Lax matrix whose Poisson bracket is of the standard r/s-form characterised by a twist function which we determine. A number of results immediately follow from this, including the identification of certain complex Poisson commuting Kac-Moody currents as well as an explicit description of the q-deformed symmetries of the model. Moreover, the model is also shown to fit naturally in the general scheme recently developed for constructing integrable deformations of sigma-models. Finally, we show that although the Poisson bracket of the Lax matrix still takes the r/s-form after fixing the G_diag gauge symmetry, it is no longer characterised by a twist function.
description: 26 pages, 1 figure
title: PerAWaT - Experiment Data, Quality Controlled and Delivered (WG4 WP3 D2)
Creators: name: Buvat, C.
name: Stallard, T.
Publisher: name: ETI
Year: 2013
Subjects: subject: Marine
subject: RENEWABLE ENERGY SOURCES (Ocean Energy)

description: The Performance Assessment of Wave and Tidal Array Systems (PerAWaT) project, launched in October 2009 with £8m of ETI investment.The project delivered validated, commercial software tools capable of significantly reducing the levels of uncertainty associated with predicting the energy yield of major wave and tidal stream energy arrays. It also produced information that will help reduce commercial risk of future large scale wave and tidal array developments.

Few experimental scale tests have been conducted to assess the performance of one tidal turbine. However, there is a growing need for scale testing in order to validate numerical models which will predict the effect of the ambient flow conditions on the power performance and the wake shape and intensity of a tidal turbine.The intention of WG4 WP3 is to obtain experimental data describing the wake and performance of ducted device concepts. This document provides an explanation of the test procedure, the format of the collated data and the quality control processes employed during the experiments.
Roteiro de vídeo - A UEx e a autogestão da escola
Creators: name: Diniz, Adriana Valéria Santos
name: Pereira, Maria Aparecida Nunes
Publisher: name: Zenodo
Year: 2023
Subjects: Vìdeo
PDDE
Ações Integradas

description: Este relatório apresenta as atividades desenvolvidas no âmbito do Projeto “O Fortalecimento do Programa Dinheiro Direto na escola na região Nordeste como estratégia para a gestão democrática e para a qualidade da educação” – CECAMPE REGIÃO NORDESTE, referente à produção do vídeo “A UEx e a autogestão da escola”. O objetivo da criação do vídeo foi apresentar a importância da UEx para que a escola exerça a sua autonomia financeira na gestão dos recursos recebidos do PDDE. O vídeo foi roteirizado pela professora doutora Lebiam Tamar Gomes da Silva, sendo validado pelo FNDE.
title: Mix & Match in der Hüftendoprothetik
Creators: name: Müller, Ulrike
name: Sonntag, Robert
name: Braun, Steffen
name: Kretzer, J. Phillipe
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Mix & Match
subject: Hüftendoprothetik
subject: 610 Medical sciences; Medicine

description: Fragestellung: Seitens der Implantathersteller wird proklamiert, dass sich die konischen Steckverbindungen unterscheiden und damit ein Mischen von Implantatkomponenten verschiedener Hersteller (Mix & Match) nicht zulässig ist. Jedoch kann es im Fall einer Revisionsoperation dazukommen, dass[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2016)
title: Spacetime Lattice Foundations: Reinterpreting Reality Through Vibrational Physics
title: Thought Leadership Towards an Evolved Framework of the Universe
titleType: Subtitle
Creators: name: Rose, Shammah
Publisher: name: Zenodo
Year: 2023
Subjects: cosmology
unified theory
theory of everything
quantum gravity

description: Core principle

This paper provides thought leadership towards an evolved framework of our universe. A strong argument is made: "Spacetime should not be separated from particles. They are from the same source." If spacetime is a universal vibrational field, particles are its solitons, with their interactions with each other and the field being symptoms of the vibrational dynamics.

Abstract

The spacetime lattice framework proposes a model to understand the universe's foundations. It is a platform that merges Quantum Mechanics and General Relativity concepts. The notion of spacetime particles (SPs) underpin the core of the framework. They are constituents of the spacetime fabric and arranged in a lattice pattern, like atomic arrangements in crystalline materials. Each SP possesses intrinsic vibrations, which act as the most fundamental temporal clock. A full oscillation of an SP's vibration corresponds to an indivisible unit of time. 

Particles are portrayed as unique vibrational patterns instead of as point-like entities. These vibrational signatures exist at lattice points that are akin to lattice contact points. Particles introduce delta vibrations, which are additional vibrational energy to the vibrational base state of the lattice. Fundamental forces such as gravity, electromagnetism, and the nuclear forces emerge from interactions between particle vibrational patterns and with the lattice vibrations. Various physical phenomena are ultimately symptoms of spacetime lattice dynamics. 

Gravitation is deciphered as perturbations in the base state vibrational field, which leads to a gradient that influences particle movement. This also leads to an intuitive understanding of black holes, which are seen as regions of intense vibrations to the point of particles losing their vibrational identity. The universe's expansion emerges from the drift of SPs caused by their intrinsic vibrations and their construction from the "Void". The Void is the background in which the spacetime lattice exists. 

The framework attempts to offer its own account of some known physics, whilst exploring the unknown. Future studies in the direction of the spacetime lattice might unlock unsolved mysteries, bridge gaps in our current understanding and uncover new realms of physical reality. This paper not only hypothesises the existence of the spacetime lattice, but also serves as an invitation for further exploration. 

correction: hydrogen on page 14 should read deuterium. To be corrected in a later version.
Gray transits of WD 1145+017 over the visible band
Creators: name: Alonso, R.
name: Rappaport, S.
name: Deeg, H. J.
name: Palle, E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We have observed several relatively deep transits of the white dwarf WD 1145+017 with the GTC over the wavelength range 480 nm to 920 nm. The observations covered approximately one hour on 2016 Jan 18 and two hours on 2016 Jan 20. There was variable extinction of the white dwarf during much of that time, but punctuated by four sharp transits with depths ranging from 25% to 40%. The spectrum was dispersed with a grism, and the flux data were ultimately summed into four bands centered at 0.53, 0.62, 0.71, and 0.84 $μ$m. After careful normalization, we find that the flux light curves in all four bands are consistent with being the same, including through the deepest dips. We use these results to compute Ångström exponents, $α$, for the particles responsible for the extinction and find |$\langle α\rangle $| $\lesssim 0.06$, assuming that the extinction is relatively optically thin. We use the complex indices of refraction for common minerals to set constraints on the median sizes of possible dust grains, and find that for most common minerals, particle sizes $\lesssim 0.5 \, μ$m can be excluded.
description: A&A Letters, in press. Minor language editions