cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Wind-reprocessed Transients
Creators: name: Piro, Anthony L.
name: Lu, Wenbin
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We consider the situation where the luminosity from a transient event is reprocessed by an optically thick wind. Potential applications are the tidal disruption of stars by black holes, engine-powered supernovae, and unique fast transients found by current and future wide-field surveys. We derive relations between the injected and observed luminosity for steady and time dependent winds, and discuss how the temperature is set for scattering-dominated radiative transport. We apply this framework to specific examples of tidal disruption events and the formation of a black hole by a massive star, as well as discuss other applications such as deriving observables from detailed hydrodynamic simulations. We conclude by exploring what is inferred about the mass loss rate and underlying engine powering AT2018cow if it is explained as a wind-reprocessed transient, demonstrating that its optical emission is consistent with reprocessing of the observed soft X-rays.
description: 13 pages, 7 figures, version accepted for publication in ApJ, added panel to Figure 7 and short discussion on the X-ray production efficiency of AT2018cow
Near-infrared Monitoring of the Accretion Outburst in the MYSO S255-NIRS3
Creators: name: Uchiyama, Mizuho
name: Yamashita, Takuya
name: Sugiyama, Koichiro
name: Nakaoka, Tatsuya
name: Kawabata, Miho
name: Itoh, Ryosuke
name: Yamanaka, Masayuki
name: Akitaya, Hiroshi
name: Kawabata, Koji
name: Yonekura, Yoshinori
name: Saito, Yu
name: Motogi, Kazuhito
name: Fujisawa, Kenta
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We followed-up the massive young stellar object (MYSO) S255-NIRS3 (=S255-IRS1b) during its recent accretion outburst event in the Ks band with Kanata/HONIR for four years after its burst and obtained a long-term light curve. This is the most complete NIR light-curve of the S255-NIRS3 burst event that has ever been presented. The light curve showed a steep increase reaching a peak flux that was 3.4 mag brighter than the quiescent phase and then a relatively moderate year-scale fading until the last observation, similar to that of the accretion burst events such as EXors found in lower-mass young stellar objects. The behavior of the Ks band light curve is similar to that observed in 6.7 GHz class II methanol maser emission, with a sudden increase followed by moderate year-scale fading. However, the maser emission peaks appear 30-50 days earlier than that of the Ks band emission. The similarities confirmed that the origins of the maser emission and the Ks band continuum emission is common as previously shown from another infrared and radio observations by Stecklum et al. (2016); Caratti o Garatti et al. (2017a); Moscadelli et al. (2017). However, the differences in energy transfer paths, such as the exciting/emitting/scattering structures, may cause the delay in the flux-peak dates.
description: 8 pages, 4 figures, 2 tables, accepted to PASJ
Flat Slab Shear Wall Interaction for Multistoried Building Analysis When Structure Length is Greater than Width Under Seismic Forces
Creators: name: Jamle, Sagar
Publisher: name: figshare
Year: 2020
Subjects: subject: 90506 Structural Engineering
subject: FOS: Civil engineering

description: In recent times there has been a considerable increase in the number of tall buildings, both residential and commercial, and modern trend is towards taller structures. Flat slab is most widely used systems in reinforced
concrete construction. Flat-slab building structures possesses main advantages over traditional slab- beam column structures taking a advantages of reduced floor height, shorter construction time, architectural –
functional and economical aspects. But in flat slab building columns are directly provides supports to slab with
eliminating beams so there is requirement of provision of shear walls to increase the stiffness of building against
lateral forces. Shear wall system are one of the most commonly used lateral load resisting in high rise building.
Shear wall has high in plane stiffness and strength. The aim of the present study is to evaluate the behavior of
multi-storeyed building of conventional R.C.C. having flat slab with or without shear walls and to analyze the effect of building height and length on the performance under earthquake forces. Also effect of with or without shear wall for flat slab building on seismic behavior with varying thickness and varying position of shear wall are studied. In this work, the effects of seismic forces in zone V on these buildings are also carried out. The aim is also shows that the behavior of various frames when the structure length is greater than its width. For this, G+9, G+18, G+27 and G+36 Storeyed models, each of plan size 20X50m are selected. For stabilization of the variable parameters, shear wall are provided at different locations. To study the effect of different location of shear wall on flat slab multi-storey building, static analysis (Equivalent Static Analysis) in software STAAD Pro
is carried out for zone V. The seismic parametric studies comprise of lateral displacement, storey drift, drift reduction factor and contribution factor.
CHANDRA Detection of the AM CVn binary ES Cet (KUV 01584-0939)
Creators: name: Strohmayer, Tod E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on CHANDRA ACIS observations of the ultracompact AM CVn binary ES Cet. This object has a 10.3 minute binary period and is the most compact of the confirmed AM CVn systems. We have, for the first time, unambiguously detected the X-ray counterpart to ES Cet. In a 20 ksec ACIS-S image a point-like X-ray source is found within 1'' of the catalogued optical position. The mean countrate in ACIS-S is 0.013 cts/s, and there is no strong evidence for variability. We extract the first X-ray spectrum from ES Cet, and find that it is not well described by simple continuum models. We find suggestive evidence for discrete spectral components at about 470 and 890 eV, that can be modelled as gaussian emission lines. In comparison with recent X-ray detections of nitrogen and neon in another AM CVn system (GP Com), it appears possible that these features may represent emission lines from these same elements; however, deeper spectroscopy will be required to confirm this.
description: AASTeX preprint, 13 Pages, 3 Figures, 2 Tables. Version accepted for the Astrophysical Journal
Assessment of Concrete Properties by Partial Replacement of Fly Ash With Cement & Recycled Aggregate With Natural Coarse Aggregate
Creators: name: Jamle, Sagar
Publisher: name: figshare
Year: 2020
Subjects: subject: 90506 Structural Engineering
subject: FOS: Civil engineering

description: The work audits the feasibility of demolished concrete as partial substitute of natural coarse aggregate respectively. In initial stage, same optimum ratio of cement is added with partly replaced natural coarse aggregate (NCA) with recycled concrete aggregate (RCA) in concrete. For test intent, recycled aggregates were accessed from crushed concrete cubes of grade M25 in laboratory. Variant composition of natural coarse aggregate and recycled
aggregate adopted and test samples from this matrix were
prepared for the same test as mentioned above. Observations reveal, combination of 90% NCA and 10% RCA in ratio, leads to adequate results.
Additional file 3 of Epicardial adipose tissue is associated with higher recurrence risk after catheter ablation in atrial fibrillation patients: a systematic review and meta-analysis
Creators: name: Chen, Jun
name: Mei, Ziwei
name: Yang, Yang
name: Dai, Chuxing
name: Wang, Yimin
name: Zeng, Rui
name: Liu, Qiang
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Computational Biology

description: Additional file3: Quality evaluation scale for prevalence studies.
Universal relaxation function in nonextensive systems
Creators: name: Brouers, F.
name: Sotolongo-Costa, O.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We have derived the dipolar relaxation function for a cluster model whose volume distribution was obtained from the generalized maximum Tsallis nonextensive entropy principle. The power law exponents of the relaxation function are simply related to a global fractal parameter $α$ and for large time to the entropy nonextensivity parameter $q$. For intermediate times the relaxation follows a stretched exponential behavior. The asymptotic power law behaviors both in the time and the frequency domains coincide with those of the Weron generalized dielectric function derived from an extension of the Levy central limit theorem. They are in full agreement with the Jonscher universality principle. Moreover our model gives a physical interpretation of the mathematical parameters of the Weron stochastic theory and opens new paths to understand the ubiquity of self-similarity and power laws in the relaxation of large classes of materials in terms of their fractal and nonextensive properties.
description: Two figures. Submitted for publication
title: The cost and benefit of banking regulations and controls, Chinese style
Creators: name: Ju, Xiaosheng
name: Lo, Dic
Publisher: name: PSL Quarterly Review
Year: 2013
Subjects: subject: China, systemic fragility, allocative efficiency, productive efficiency
subject: G28, E12, E44

description: The neoclassical approach focuses its attention on the prudence of individual banks. In its objective of achieving allocative efficiency, it seeks to prevent market failures caused by the operations of the banks. In this light, it is contended that China should further its market reforms in the direction of fostering the profit maximization cum risk minimization pursuit of individual banks. Meanwhile, the Keynesian-Schumpeterian-Minskyan approach focuses its attention on coping with systemic fragility. And systemic fragility is seen as endemic to the interaction between credit expansion and contraction, productive investment, and business profitability. In this light, even if it is indeed allocatively inefficient, Chinese finance can still have its advantages in terms of promoting productive efficiency. JEL Codes: G28, E12, E44
description: PSL Quarterly Review, V. 65, N. 263 (2012)
Iron Line Profiles in Strong Gravity
Creators: name: Beckwith, Kris
name: Done, Chris
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe a new code which can accurately calculate the relativistic effects which distort the emission from an accretion disc around a black hole. We compare our results for a disk which extends from the innermost stable orbit to $20r_{g}$ in both Schwarzschild and maximal ($a=0.998$) Kerr spacetimes with the two line profile codes which are on general release in the XSPEC spectral fitting package. These models generally give a very good description of the relativistic smearing of the line for this range of radii. However, these models have some limitations. In particular we show that the assumed form of the {\em angular} emissivity law (limb darkening or brightening) can make significant changes to the derived line profile where lightbending is important. This is {\em always} the case for extreme Kerr spacetimes or high inclination systems, where the observed line is produced from a very large range of different emitted angles. In these situations the assumed angular emissivity can affect the derived {\em radial} emissivity. The line profile is not simply determined by the well defined (but numerically difficult) physical effects of strong gravity, but is also dependent on the poorly known astrophysics of the disc emission.
description: 10 pages, 13 figures, accepted for pulication in MNRAS, major changes to text, structure and figures, version with high resolution figures available from http://star-www.dur.ac.uk/~krcb/ironline.pdf
On the nature of light scalar mesons from their large $N_c$ behavior
Creators: name: Pelaez, J. R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We show how to obtain information about the states of an effective field theory in terms of the underlying fundamental theory. In particular we analyze the spectroscopic nature of meson resonances from the meson-meson scattering amplitudes of the QCD low energy effective theory, combined with the expansion in the large number of colors. The vectors follow a qqbar behavior, whereas the sigma, kappa and f_0(980) scalars disappear for large N_c, in support of a qqqbarqbar-like nature. The a_0 shows a similar pattern, but the uncertainties are large enough to accommodate both interpretations.
description: 4 pages. Slightly shortened version to appear in Phys. Rev. Lett. Two typos corrected
title: Atlas des DOM. - La Réunion - Planche 29 : Tourisme : notice, page 4 "III. Politique touristique (suite et fin) et "Le bilan actuel"
Creators: name: Defos du Rau, Jean
name: Guinot, Olga
name: Lanteri, Paul
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2017
Subjects: tourisme
activité économique
secteur tertiaire
planification
politique touristique

description: Suite de la présentation de l'aménagement des possibilités touristiques (les excursions et le tourisme thermal). Présente le bilan touristique. Quatre tableaux appuient ces propos : un tableau donne le nombre de personnes débarquées à La Réunion de 1968 à 1970, un tableau donne le pourcentage d'accroissement par nationalité entre 1969 et 1970, un tableau donne la répartition des clients selon leur domicile de 1968 à 1970, un tableau donne le nombre de clients d'après la durée du séjour de 1968 à 1973. Une orientation bibliographique est fournie en fin de notice.
description: Relation: http://www.nakala.fr/data/11280/597e3a40
description: Relation: http://www.nakala.fr/data/11280/73e932b6
description: Relation: http://www.nakala.fr/data/11280/68754dd8
description: Coverage: La Réunion
description: Coverage: Saint-Denis
description: Temporal: start=1968; end=1973;
Leveraging Deep Learning for Contextual Search in Multi-Domain Knowledge Repositories: Enhancing Software Testing and Result Precision
Creators: name: Srimaan, Yarram
name: Srinivasa Rao, Bittla
Publisher: name: Zenodo
Year: 2025

description: The increasing complexity and scale of contemporary software systems necessitate sophisticated approaches for effective and accurate testing. This research examines the utilization of deep learning methodologies to augment contextual search in multi-domain knowledge repositories, transforming software testing and enhancing result accuracy. Conventional approaches, constrained by keyword-centric searches and manual evaluations, fail to reveal nuanced connections among code modules, requirements, and test cases. Deep learning, utilizing transformer architectures, convolutional neural networks (CNNs), and natural language processing (NLP), provides a powerful solution by facilitating semantic comprehension, defect forecasting, and automated test case creation. The amalgamation of multi-domain knowledge, encompassing code repositories, test cases, and external APIs, enables comprehensive analysis and enhanced fault identification. AI-driven adaptive testing methodologies dynamically optimize execution, minimizing false positives and improving result accuracy. Issues including data quality, algorithmic bias, and ethical implications are tackled, highlighting the significance of explainability and human-AI collaboration. Future research directions emphasize the establishment of defined benchmarks, enhancement of robustness, and promotion of responsible AI deployment. This study emphasizes the revolutionary capacity of deep learning in reshaping software testing methodologies, allowing enterprises to produce superior-quality software with enhanced confidence and speed.
Critical Review on Sustainable Homogeneous Cellulose Modification: Why Renewability Is Not Enough
Creators: name: Onwukamike, Kelechukwu
name: Grelier, Stéphane
name: Grau, Etienne
name: Cramail, Henri
name: Meier, Michael
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: As we passed the 20th anniversary of the publication of the 12 principles of green chemistry, the sustainable modification of cellulose, being the most abundant biobased polymer, is certainly worth considering. Many researchers work on an efficient valorization of this renewable resource due to its manifold and promising application possibilities, but very often the use of non-sustainable approaches (i.e., solvents, reactants and modification approaches) only addresses the renewability aspect of cellulose, while neglecting most or all of the other principles of green chemistry. In this review, we have employed the use of E-factors together with basic toxicity information to compare between various approaches for homogeneous cellulose modification. This approach, though simple and certainly not overarching, can provide a quick and useful first sustainability assessment. Therefore, in order to achieve a truly sustainable modification of cellulose, its renewability combined with mild and efficient reaction protocols is crucial in order to obtain sustainable materials that are capable of reducing the overall negative impact of today's fossil-based polymeric materials.
Flat Slab Shear Wall Interaction for Multistoried Building under Seismic Forces”
Creators: name: Jamle, Sagar
Publisher: name: figshare
Year: 2020
Subjects: subject: 90506 Structural Engineering
subject: FOS: Civil engineering

description: In present era, scarcity of space led to the development of tall buildings in urban areas. Generally conventional
RC framed structures are used for design and construction of these buildings. Flat plate and flat slab are mostly
used structural forms in RC construction in residential, industrial and commercial buildings in many areas of the
world. This system provides many advantages in terms of use of space, reduce cost of formwork, shorter construction time, architectural flexibility as it require least storey height and easy installation. However, in multi-storey buildings it has week resistance to the lateral loads. Hence this work is concerned to increase the lateral stiffness of building having flat slab and to minimize the displacement under lateral loading. To provide stability to structures from seismic loads, shear wall are used. The aim of the present study is to compare the behavior of multi-storeyed building of conventional R.C.C.,having flat slab with or without shear walls and to analyze the effect of building height on the
performance under earthquake forces. Also effect of with or without shear wall for flat slab building on seismic behavior with varying thickness and varying position of shear wall are studied. In this work, the effects of seismic forces in zone V on these buildings are also carried out. For this, G+9, G+18, G+27 and G+36 Storeyed models, each of plan size 20X20m are selected. For stabilization of the variable parameters, shear wall are provided at different locations. To study the effect of different location of shear wall on flat slab multi-storey building, static analysis (Equivalent Static Analysis) in software STAAD Pro is carried out for zone V. The seismic parametric studies comprise of lateral displacement, storey drift, drift reduction factor and contribution factor.
Ethnic identification during early childhood : the role of parents and teachers
Creators: name: Waniganayake, Manjula Subodhini
Publisher: name: The Australian National University
Year: 1992
Subjects: subject: Children of immigrants Family relationships Australia Canberra (A.C.T.)
subject: Children of immigrants Education Australia Canberra (A.C.T.)
subject: East Indians Cultural assimilation Australia Canberra (A.C.T.)
subject: Scots Cultural assimilation Australia Canberra (A.C.T.)
subject: Finns Cultural assimilation Australia Canberra (A.C.T.)
subject: Ethnicity in children Australia Canberra (A.C.T.)

description: The primary purpose of this thesis is to examine the interconnections between the roles played by parents and teachers and children’s own sense of ethnic identification during early childhood. Although the study of ethnicity and multiculturalism received much attention during the 1980s associated research applicable within the Australian early childhood scene remains largely an unchartered territory. Much of the research todate has focussed on adults’ perceptions, paying little regard to children’s view of the world. This study is based on twenty-seven children aged between 5 to 8 years, descendants of Scottish, Finnish and Indian immigrants living in Canberra, Australia. To analyse the differences between the learning environments of home and school, a typology based on the participants’ perceptions of their roles is advanced. The findings confirm the view that ethnic identification is a product of socialisation processes and that its outcomes are difficult to predict. More importantly, there is evidence to suggest that the process of learning to be Scottish, Finnish or Indian does not follow a serial or linear path, progressing neatly from the home to the school. It was found that although parents and teachers can alter the context of learning, children’s capacity for independent thought and their everyday experiences with grandparents, siblings and peers, for instance, also contribute to children’s sense of ethnic identification. Hence, when examining the contexts of learning, both adult and child perspectives must be considered together.
Probing impact-parameter dependent nuclear parton densities from double parton scatterings in heavy-ion collisions
Creators: name: Shao, Hua-Sheng
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We propose a new method to determine the spatially or impact-parameter dependent nuclear parton distribution functions (nPDFs) using the double parton scattering (DPS) processes in high-energy heavy-ion (proton-nucleus and nucleus-nucleus) collisions. We derive a simple generic DPS formula in nuclear collisions by accommodating both the nuclear collision geometry and the spatially dependent nuclear modification effect, under the assumption that the impact-parameter dependence of nPDFs is only related to the nuclear thickness function. While the geometric effect is widely adopted, the impact of the spatially dependent nuclear modification on DPS cross sections has been overlooked so far, which can, however, be significant when the initial nuclear modification is large. In turn, the DPS cross sections in heavy-ion collisions can provide useful information on the spatial dependence of nPDFs. They can be, in general, obtained in minimum-bias nuclear collisions, featuring the virtue of independence of Glauber modeling.
description: 12 pages, 3 figures, 4 tables; v2: journal version (add a new appendix and references)
Non-commutative dynamics and roton-like spectra in bosonic and fermionic condensates
Creators: name: Castorina, Paolo
name: Riccobene, Giuseppe
name: Zappala', Dario
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The relation between symmetry breaking in non-commutative cut-off field theories and transitions to inhomogeneous phases in condensed matter is discussed. The non-commutative dynamics can be regarded as an effective description of the mechanisms which lead to inhomogeneous phase transitions and their relation to the roton-like excitation spectrum. The typical infrared-ultraviolet mixing in non-commutative theories contains the peculiar ingredients to describe the interplay between short and long distance particle interactions which is responsible for the non-uniform background and the roton spectrum both in bosonic and fermionic condensates.
description: 4 Pages, no figures
Computational modeling of microstructure
Creators: name: Luskin, Mitchell
Publisher: name: arXiv
Year: 2003
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 49J45, 65N15, 65N30, 74N10, 74N15, 74N30

description: Many materials such as martensitic or ferromagnetic crystals are observed to be in metastable states exhibiting a fine-scale, structured spatial oscillation called microstructure; and hysteresis is observed as the temperature, boundary forces, or external magnetic field changes. We have developed a numerical analysis of microstructure and used this theory to construct numerical methods that have been used to compute approximations to the deformation of crystals with microstructure.
Assessing the Performance of Molecular Gas Clump Identification Algorithms
Creators: name: Li, Chong
name: Wang, Hong-chi
name: Wu, Yuan-wei
name: Ma, Yue-hui
name: Lin, Liang-hao
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The detection of clumps(cores) in molecular clouds is an important issue in sub-millimetre astronomy. However, the completeness of the identification and the accuracy of the returned parameters of the automated clump identification algorithms are still not clear by now. In this work, we test the performance and bias of the GaussClumps, ClumpFind, Fellwalker, Reinhold, and Dendrograms algorithms in identifying simulated clumps. By designing the simulated clumps with various sizes, peak brightness, and crowdedness, we investigate the characteristics of the algorithms and their performance. In the aspect of detection completeness, Fellwalker, Dendrograms, and Gaussclumps are the first, second, and third best algorithms, respectively. The numbers of correct identifications of the six algorithms gradually increase as the size and SNR of the simulated clumps increase and they decrease as the crowdedness increases. In the aspect of the accuracy of retrieved parameters, Fellwalker and Dendrograms exhibit better performance than the other algorithms. The average deviations in clump parameters for all algorithms gradually increase as the size and SNR of clumps increase. Most of the algorithms except Fellwalker exhibit significant deviation in extracting the total flux of clumps. Taken altogether, Fellwalker, Gaussclumps, and Dendrograms exhibit the best performance in detection completeness and extracting parameters. The deviation in virial parameter for the six algorithms is relatively low. When applying the six algorithms to the clump identification for the Rosette molecular cloud, ClumpFind1994, ClumpFind2006, Gaussclumps, Fellwalker, and Reinhold exhibit performance that is consistent with the results from the simulated test.
description: 23 pages, 13 figures. Accepted for publication in RAA
title: No, they can't!” The potential and limitations of the EU (as a supranational state in the making) to reform finance and overcome the crisis.
Creators: name: Wahl, Peter
Publisher: name: PSL Quarterly Review
Year: 2013
Subjects: subject: financial reform, European Union, financial crisis
subject: G28, D72, N24

description: After the financial crisis had fully broken out in 2008 there were strong statements about the need for reforms. However, the official EU statements kept a lower profile from the beginning for several reasons. The existing structures and procedures have created a strong path dependency. This does not mean that there is no alternative. But it takes time to implement change and it is very difficult to make it real – at least as long as one does not want to give up democracy. This is why the crisis management in place is confined to muddling through. JEL Codes: G28, D72, N24
description: PSL Quarterly Review, V. 65, N. 263 (2012)
Determining the $^{56}$Ni distribution of type Ia supernovae from observations within days of explosion
Creators: name: Magee, M. R.
name: Maguire, K.
name: Kotak, R.
name: Sim, S. A.
name: Gillanders, J. H.
name: Prentice, S. J.
name: Skillen, K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Recent studies have shown how the distribution of $^{56}$Ni within the ejecta of type Ia supernovae can have profound consequences on the observed light curves. Observations at early times can therefore provide important details on the explosion physics in thermonuclear supernovae. We present a series of radiative transfer calculations that explore variations in the $^{56}$Ni distribution. Our models also show the importance of the density profile in shaping the light curve, which is often neglected in the literature. Using our model set, we investigate the observations that are necessary to determine the $^{56}$Ni distribution as robustly as possible within the current model set. We find that this includes observations beginning at least $\sim$14 days before $B$-band maximum, extending to approximately maximum light with a high ($\lesssim$3 day) cadence, and in at least one blue and one red band are required (such as $B$ and $R$, or $g$ and $r$). We compare a number of well-observed type Ia supernovae that meet these criteria to our models and find that the light curves of $\sim$70-80\% of objects in our sample are consistent with being produced solely by variations in the $^{56}$Ni distributions. The remaining supernovae show an excess of flux at early times, indicating missing physics that is not accounted for within our model set, such as an interaction or the presence of short-lived radioactive isotopes. Comparing our model light curves and spectra to observations and delayed detonation models demonstrates that while a somewhat extended $^{56}$Ni distribution is necessary to reproduce the observed light curve shape, this does not negatively affect the spectra at maximum light. Investigating current explosion models shows that observations typically require a shallower decrease in the $^{56}$Ni mass towards the outer ejecta than is produced for models of a given $^{56}$Ni mass.
description: 31 pages, 32 figures, 2 tables. Accepted for publication in A&A. Model light curves available at https://github.com/MarkMageeAstro/TURTLS-Light-curves
Renormalization Group in the Problem of Active Scalar Advection
Creators: name: Antonov, N. V.
name: Kostenko, M. M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The field theoretic renormalization group (RG) is applied to the model of a near-equilibrium fluid coupled to a scalar field (like temperature or density of an impurity) which is active, that is, influencing the dynamics of the fluid itself. It is shown that the only possible nontrivial infrared (IR) asymptotic regimes are governed by "passive" fixed points of the RG equations, where the back reaction is irrelevant. This result reminds of that obtained in [Nandy and Bhattacharjee, J. Phys. A: Math. Gen. {\bf 31}, 2621 (1998)] in a model describing active convection by fully developed turbulence. Furthermore, we establish the existence of "exotic" fixed points with negative and complex effective couplings and transport coefficients that may suggest possible directions for future studies.
Dynamic Analysis of Tuned Mass Damper on Steel Structure: A Technical Approach
Creators: name: Jamle, Sagar
Publisher: name: figshare
Year: 2020
Subjects: subject: 90506 Structural Engineering
subject: FOS: Civil engineering

description: Seismic analysis is most important tasks to know the behavior of structure under action of earthquake loading. Different system is generated to reduce the effect of earthquake loading. TMD (tuned mass damper) arrangement is one which is used to decrease the sensations s of the steel structures. Further with the appearance of response spectrum analysis with better perceptive of seismic response. The significance of reduced the sensations and displacement of structure is realize in resisting even advanced seismic loads than the design load. The base shear force is decreases by introducing a response reduction factor to consider an inelastic displacement ability of ductile structure in dissipating the energy of structure. In this review paper studied the conduct of TMD on a steel frame structure under the action of dynamic loading with irregularity in vertical direction. The TMD is evaluated by means of response decrease coefficient. Which are generating from the proportion of the structure rejoinder with or without tuned mass damper. The response spectrum analysis of TMD structure shows the more accurate results against the seismic loading based on IS code depends on nonlinear performance of material.
A preliminary study of the magnitudes of radiative and convective heat transfer in a diesel engine
Creators: name: Williams, Howard S.
Publisher: name: Loughborough University
Year: 2021
Subjects: subject: 91399 Mechanical Engineering not elsewhere classified
subject: FOS: Mechanical engineering

description: A preliminary study of the magnitudes of radiative and convective heat transfer in a diesel engine
title: 02_1190
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
title: Keynesian uncertainty and the shaky foundations of statistical risk assessment models
Creators: name: Roncaglia, Alessandro
Publisher: name: PSL Quarterly Review
Year: 2013
Subjects: subject: risk assessment, probability, uncertainty, financial regulation
subject: G32, D81, E12

description: With the financialization of the economy, increasing reliance has been put on statistical models for derivatives pricing and for risk assessment in the day-to-day business of financial operators as well as in financial regulation. This practice had already been criticized from many quarters and on different accounts before the crisis, but these criticisms were simply ignored by the prevailing consensus. This work reconsiders such criticisms from a different standpoint: though they are justified, they could have been put forward in even stronger terms had they relied on Keynes’s work on probability and his notion of uncertainty. I shall thus focus on the conceptual views underlying statistical risk assessment techniques rather than on the techniques in themselves. Finally, I set out some policy implications for regulation. JEL Codes: G32, D81, E12
description: PSL Quarterly Review, V. 65, N. 263 (2012)
Entropy production in the cyclic lattice Lotka-Volterra model
Creators: name: Anteneodo, Celia
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The cyclic Lotka-Volterra model in a $D$-dimensional regular lattice is considered. Its ``nucleus growth'' mode is analyzed under the scope of Tsallis' entropies $S_q=(1-\sum_i p_i^q)/(q-1)$, $q\in \mathbb{R}$. It is shown both numerically and by means of analytical considerations that a linear increase of entropy with time, meaning finite asymptotic entropy rate, is achieved for the entropic index $q_c=1-1/D$. Although the lattice exhibits fractal patterns along its evolution, the characteristic value of $q$ can be interpreted in terms of very simple features of the dynamics.
description: 7 pages, 6 figures
Lattice Setup for Quantum Field Theory in AdS$_2$
Creators: name: Brower, Richard C.
name: Cogburn, Cameron V.
name: Fitzpatrick, A. Liam
name: Howarth, Dean
name: Tan, Chung-I
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Holographic Conformal Field Theories (CFTs) are usually studied in a limit where the gravity description is weakly coupled. By contrast, lattice quantum field theory can be used as a tool for doing computations in a wider class of holographic CFTs where gravity remains weak but nongravitational interactions {\it in AdS} become strong. We take preliminary steps for studying such theories on the lattice by constructing the discretized theory of a scalar field in AdS$_2$ and investigating its approach to the continuum limit in the free and perturbative regimes. Our main focus is on finite sub-lattices of maximally symmetric tilings of hyperbolic space. Up to boundary effects, these tilings preserve the triangle group as a large discrete subgroup of AdS$_2$, but have a minimum lattice spacing that is comparable to the radius of curvature of the underlying spacetime. We quantify the effects of the lattice spacing as well as the boundary effects, and find that they can be accurately modeled by modifications within the framework of the continuum limit description. We also show how to do refinements of the lattice that shrink the lattice spacing at the cost of breaking the triangle group symmetry of the maximally symmetric tilings.
description: 36 pages, 12 figures
Experimental Investigation on Fly Ash & Glass Powder As Partial Replacement of Cement For M-25 Grade Concrete
Creators: name: Jamle, Sagar
Publisher: name: figshare
Year: 2020
Subjects: subject: 90506 Structural Engineering
subject: FOS: Civil engineering

description: Preservation of environment and conservation of natural resources is the essence of any development. Also the
present R and D continuously deal with technological and
industrial development on waste management. In order to
address environmental effects associated with cement
manufacturing, it is crucial to advance alternative binders to
compose concrete. Consequently extensive delving is continuing, on substitution of cement by differing waste
materials and industrial offshoot. As partial replacement of
cement attempts on fly ash, waste glass, rice husk etc. have already been accomplished in concrete industries. If little waste material found convenient and economical for concrete manufacturing, a major gain will be achieved in disposal of waste management and depression in construction cost. The work audits the feasibility of fly ash, glass powder as partial substitute of cement respectively. The initial stage proceeds with replacing 25% cement content by variant proportions of fly ash (FA) and glass powder (GP). After then it is analyzed for flexural and compressive strength, at 7, 14 & 28 days and correlated with traditional concrete. The adequate results were attained with the combination of cement 75% and fly ash 25% in ratio, w.r.t properties tested.
Ab initio many-body GW correlations in the electronic structure of LaNiO$_2$
Creators: name: Olevano, Valerio
name: Bernardini, Fabio
name: Blase, Xavier
name: Cano, Andrés
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present an ab initio $GW$ self-energy calculation of the electronic structure of LaNiO$_2$. With respect to density-functional theory we find that in $GW$ the La 4$f$ states undergo an important $+$2 eV upward shift from the Fermi level, while the O 2$p$ states are pulled down by $-$1.5 eV, thus reinforcing the charge-transfer character of this material. However, $GW$ many-body effects leave the $d$-like bands at the Fermi level almost unaffected, so that the Fermi-surface topology is preserved, unlike in cuprates.
description: 6 pages, 6 figures, 2 tables
Nucleus-nucleus interaction in the perurbative QCD
Creators: name: Braun, M. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Nucleus-nucleus interaction is studied in the framework of the perturbative QCD with large number of colours and a fixed coupling constant. The pomeron tree diagrams are summed by an effective field theory. The classical field equations are solved by iteration procedure, which is found convergent in a restricted domain of not too high energies and atomic numbers. The found gluon distributions do not scale, have their maxima close to 2 GeV/c independent of rapidity and fall towards the central rapidity region. The cross-sections slowly grow with energy due to the contribution from peripheral collisions, where evolution remains linear. Simple variational estimates at higher rapidities confirm this tendency.
description: 10 pages, 11 figures
Anomalous peculiar motions of high-mass young stars in the Scutum spiral arm
Creators: name: Immer, K.
name: Li, J.
name: Quiroga-Nuñez, L. H.
name: Reid, M. J.
name: Zhang, B.
name: Moscadelli, L.
name: Rygl, K. L. J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present trigonometric parallax and proper motion measurements toward 22 GHz water and 6.7 GHz methanol masers in 16 high-mass star-forming regions. These sources are all located in the Scutum spiral arm of the Milky Way. The observations were conducted as part of the Bar and Spiral Structure Legacy (BeSSeL) survey. A combination of 14 sources from a forthcoming study and 14 sources from the literature, we now have a sample of 44 sources in the Scutum spiral arm, covering a Galactic longitude range from 0$^\circ$ to 33$^\circ$. A group of 16 sources shows large peculiar motions of which 13 are oriented toward the inner Galaxy. A likely explanation for these high peculiar motions is the combined gravitational potential of the spiral arm and the Galactic bar.
description: 27 pages, 52 figures, 4 tables, accepted for publication in A&A
Ορυκτοχημική μελέτη δειγμάτων βηρύλλου από την Ζάμπια (Αφρική)
Creators: name: Άλπη, Ιωάννα Δ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2025
Subjects: Ορυκτοχημική μελέτη
Βήρυλλος
Ζάμπια
Mineral and chemistry study
Beryl
Zambia

description: Τα τελευταία χρόνια γίνονται όλο και περισσότερες έρευνες σχετικά με την γεμολογική και ορυκτολογική μελέτη πολύτιμων λίθων. Σε αυτήν την εργασία μελετήθηκαν τρία δείγματα βηρύλλου από την Ζάμπια, ώστε να διαπιστωθεί αν όντως πρόκειται για βηρύλλους, και συγκεκριμένα σμαράγδια. Αρχικά στο πρώτο μέρος της διπλωματικής παρουσιάζονται πληροφορίες για την βήρυλλο, την χημική σύσταση και τις φυσικές της ιδιότητες, καθώς και πληροφορίες για τις ποικιλίες της. Στη συνέχεια, δόθηκε έμφαση στα φυσικά και χημικά χαρακτηριστικά των σμαραγδιών της Ζάμπιας, καθώς και στις συνθήκες σχηματισμού τους. Στο δεύτερο μέρος της διπλωματικής, εφαρμόστηκαν οι εξής τεχνικής ανάλυσης: φασματοσκοπία RAMAN, φωτοφωταύγειας και ορατού και εγγύς υπέρυθρου (Vis-NIR), ηλεκτρονική μικροσκοπία σάρωσης συνδεδεμένη με φασματοσκόπιο ενεργειακής διασποράς (SEM-EDS), φασματοσκοπία φθορισμού ακτίνων Χ (XRF) και στερεοσκόπιο για τη μελέτη των εγκλεισμάτων. Όπως προέκυψε, πρόκειται για σμαράγδια τύπου ΙΙ, με χαμηλή περιεκτικότητα σε Cr (low chromium emerald) και είναι σχιστολιθικού τύπου. Με βάση τις παρατηρήσεις και τις αναλύσεις των δειγμάτων η περιοχή προέλευσής τους είναι πιθανότατα η Ζάμπια.
description: In recent years more research has been presented on the gemological and mineralogical study of precious stones. In this thesis three beryl samples from Zambia were studied, in order to determine whether they are indeed beryls, and specifically emeralds. Initially, the first part of the thesis presents information about beryl, its chemical composition and physical properties, as well as information about its varieties. Emphasis is given to the physical and chemical characteristics of emeralds from Zambia, as well as their conditions of formation. In the second part of the thesis the following analytical techniques were applied: RAMAN, Photoluminescence (PL) and Visible-Near Infrared (Vis-NIR) Spectroscopy, Scanning Electron Microscopy with Energy Dispersive Spectrometry (SEM-EDS), X-ray Fluorescence (XRF) and a stereoscope for the study of inclusions. As concluded, the studied samples are emeralds Type II, with a low Cr concentration (low chromium emeralds). They belong to schist type emeralds. Based on the observations and the analyses the samples most likely originate from Zambia.