cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Filter Design and Performance Evaluation for Fingerprint Image Segmentation
Creators: name: Thai, Duy Hoang
name: Huckemann, Stephan
name: Gottschlich, Carsten
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Fingerprint recognition plays an important role in many commercial applications and is used by millions of people every day, e.g. for unlocking mobile phones. Fingerprint image segmentation is typically the first processing step of most fingerprint algorithms and it divides an image into foreground, the region of interest, and background. Two types of error can occur during this step which both have a negative impact on the recognition performance: 'true' foreground can be labeled as background and features like minutiae can be lost, or conversely 'true' background can be misclassified as foreground and spurious features can be introduced. The contribution of this paper is threefold: firstly, we propose a novel factorized directional bandpass (FDB) segmentation method for texture extraction based on the directional Hilbert transform of a Butterworth bandpass (DHBB) filter interwoven with soft-thresholding. Secondly, we provide a manually marked ground truth segmentation for 10560 images as an evaluation benchmark. Thirdly, we conduct a systematic performance comparison between the FDB method and four of the most often cited fingerprint segmentation algorithms showing that the FDB segmentation method clearly outperforms these four widely used methods. The benchmark and the implementation of the FDB method are made publicly available.
suppl_datarsob-22-0185-File001_v1_0.pdf from Identification of a small RhoA GTPase inhibitor effective in fission yeast and human cells
Creators: name: Morishita, Jun
name: Nurse, Paul
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences

description: The Rho GTPase family proteins are key regulators of cytoskeletal dynamics. Deregulated activity of Rho GTPases is associated with cancers and neurodegenerative diseases, and their potential as drug targets has long been recognized. Using an economically effective drug screening workflow in fission yeast and human cells, we have identified a Rho GTPase inhibitor, O1. By a suppressor mutant screen in fission yeast, we find a point mutation in the rho1 gene that confers resistance to O1. Consistent with the idea that O1 is the direct inhibitor of Rho1, O1 reduced the cellular amount of activated, GTP-bound Rho1 in wild-type cells, but not in the O1-resistant mutant cells, in which the evolutionarily conserved Ala62 residue is mutated to Thr. Similarly, O1 inhibits activity of the human orthologue RhoA GTPase in tissue culture cells. Our studies illustrate the power of yeast phenotypic screens in the identification and characterization of drugs relevant to human cells and have identified a novel GTPase inhibitor for fission yeast and human cells.
Coupled effects of applied load and surface structure on the viscous forces during peeling
Creators: name: Dhong, Charles
name: Frechette, Joelle
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Tree frogs are able take advantage of an interconnected network of epithelial cells in their toe pads to modulate their adhesion to surfaces under dry, wet, and flooded environments. It has been hypothesized that these interconnected drainage channels reduce the hydrodynamic repulsion to facilitate contact under a completely submerged environment (flooded conditions). Using a custom-built apparatus we investigate the interplay between surface structure and loading conditions on the peeling force. By combining a normal approach and detachment by peeling we can isolate the effects of surface structure from the loading conditions. We investigate three surfaces: two rigid structured surfaces that consist of arrays of cylindrical posts and a flat surface as a control. We observe three regimes in the work required to separate the structured surface that depend on the fluid film thickness prior to pull out. These three regimes are based on hydrodynamics and our experimental results agree with a simple scaling argument that relates the surface features to the different regimes observed. Overall we find that the work of separation of a structured surface is always less than or equal to the one for a smooth surface when considering purely viscous contributions.
description: in press Soft Matter, 23 pages, 7 figures
Connecting orbits for a singular nonautonomous real Ginzburg-Landau type equation
Creators: name: Wilczak, Daniel
name: Zgliczyński, Piotr
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We propose a method for computation of stable and unstable sets associated to hyperbolic equilibria of nonautonomous ODEs and for computation of specific type of connecting orbits in nonautonomous singular ODEs. We apply the method to a certain a singular nonautonomous real Ginzburg-Landau type equation, which that arises from the problem of formation of spots in the Swift-Hohenberg equation.
description: 36 pages, 6 figures
title: CORIA Aeornautical Combustion Facilities and Associated Optical Diagnostics
Creators: name: Grisch, Frederic
name: Boukhalfa, Mourad
name: Cabot, Gilles
name: Renou, Bruno
name: Vandel, Alexis
Publisher: name: ONERA
Year: 2016
Subjects: AERONAUTICAL COMBUSTION
OPTICAL DIAGNOSTICS
HIGH PRESSURE
HIGH TEMPERATURE
COMBUSTION FACILITIES

description: The scientific activities presented in this article are within the field of the design of
new concepts of combustion chambers and the exploration of their benefits to
increase the combustion and environmental efficiencies of advanced air-breathing
propulsion systems. These scientific activities are performed in the \"Complexe de
Recherche Interprofessionnel en Aerothermochimie\" (CORIA) research laboratory, a
joint research institute organized between the CNRS, the University of Rouen and the
INSA-Rouen Engineering School. CORIA contributes through its recognized expertise
in numerical simulation, optical diagnostic measurements and experiments in largescale
combustors to improving the understanding of multi-scale multi-physics physical
mechanisms governing the lean combustion of future combustion chambers. In this
context, the Centre de Combustion Avancee pour lAeronautique du Futur (C-CAAF)
recently created at CORIA is aimed at providing:
 An instrumentation and optical diagnostic platform gathering various laser/optical
diagnostic techniques (PIV, LDV for the characterization of the aerodynamic
field, PDPA, GRT for the characterization of the distribution of fuel droplets, CARS
for measuring the thermal field and main species concentration, OH-PLIF and
Schlieren for analyzing the flame structure, LII, NO-PLIF, CO-PLIF for measuring
pollutants in the flame, etc.). These laser/optical diagnostic techniques are
used to provide unique laboratory tools to perform time-resolved, simultaneous,
multidimensional measurements of scalar parameters governing turbulent and
multi-phase combustion. Furthermore, these diagnostic tools can be combined to
obtain detailed correlations on these scalar parameters.
 Multiple set-ups, from academic burners to complex combustors operating at
high pressures. Through the perfect control of their operating conditions, academic
burners are designed to assist in the development and validation of innovative
optical diagnostic tools. They also provide a precise determination of the
relevant chemical and physical parameters, enabling conclusions to be drawn
about the underlying partly-coupled combustion processes. Technical combustion
chambers are developed to provide a high-fidelity experimental database,
in order to improve the innovative architectures of ultra-low NOx aeronautical
injectors operating with real multi-component liquid fuels (kerosene, alternative
fuels, biofuels, etc.), to identify the interaction mechanisms between several fuel
injection systems and to validate the predictive capability of gas turbine combustion
models.
description: AerospaceLab Journal, Issue 11, June 2016; ISSN: 2107-6596
Η ερμηνεία της ανδρικής ομοφυλοφιλίας
Creators: name: Μακρή, Καλλιόπη Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2024
Subjects: subject: Ανδρική ομοφυλοφιλία
subject: Γενετική
subject: Βιολογία
subject: Male homosexuality
subject: Genetics
subject: FOS: Biological sciences
subject: Biology

description: Σε αυτήν τη βιβλιογραφική ανασκόπηση, θα εξεταστεί λεπτομερώς η ανδρική ομοφυλοφιλία, δηλαδή η προτιμησιακή ή η αποκλειστική έλξη προς συντρόφους του ίδιου φύλου. Συγκεκριμένα, θα γίνει προσπάθεια διερεύνησης της ερμηνείας της ομοφυλοφιλίας μέσα από διάφορες θεωρητικές προσεγγίσεις που έχουν τεθεί ανά τα χρόνια, βασισμένη, σε συγγράμματα Ελλήνων και ξένων μελετητών. Αρχικά, θα γίνει επεξήγηση βασικής ορολογίας, σχετικής με το υπό μελέτη θέμα, προκειμένου να αποφευχθούν οι παρερμηνείες. Έπειτα, θα γίνει μια ιστορική αναδρομή του φαινομένου της ομοφυλοφιλίας, από την αρχαία Ελλάδα στο σήμερα, για να γίνουν κατανοητές οι αλλαγές της αντιμετώπισης του φαινομένου ανά τα χρόνια. Στη συνέχεια, θα γίνει σύντομη αναφορά στο υφιστάμενο νομικό πλαίσιο για τα ανθρώπινα δικαιώματα των ομοφυλόφιλων, σε διεθνές, ευρωπαϊκό και ελληνικό επίπεδο. Στο κυρίως θέμα, θα εξεταστούν οι βασικές θεωρητικές προσεγγίσεις της ερμηνείας της ομοφυλοφιλίας. Αυτές θα διαχωριστουν σε: α) ψυχολογικές – ψυχαναλυτικές ερμηνείες από το χθες στο σήμερα, β) βιολογικές ερμηνείες με υποκατηρορίες σε ορμονικές, γενετικές και ανοσολογικές θεωρίες, γ) κοινωνικές ερμηνείες. Τέλος, θα γίνει συζήτηση για όσα διατυπώθηκαν προηγουμένως, θα δοθούν κάποια συμπεράσματα και προτάσεις για το μέλλον.
description: In this literature review, male homosexuality, that is, the preferential or exclusive attraction to partners of the same sex, will be examined in detail. Specifically, an attempt will be made to investigate the interpretation of homosexuality through various theoretical approaches that have been put forward over the years, based on the writings of Greek and foreign scholars. First, basic terminology related to the subject under study will be explained, in order to avoid misunderstandings. Then, there will be a historical review of the phenomenon of homosexuality, from ancient Greece to today, in order to understand the changes in the treatment of the phenomenon over the years. Then, a brief reference will be made to the existing legal framework for the human rights of homosexuals, at the international, European and Greek level. In the main topic, the main theoretical approaches to the interpretation of homosexuality will be examined. These will be divided into: a) psychological - psychoanalytic interpretations from yesterday to today, b) biological interpretations with subcategories in hormonal, genetic and immunological theories, c) social interpretations. Finally, what has been said will be discussed, some conclusions and proposals for the future will be drawn.
title: Research on Supersonic Combustion and Scramjet Combustors at ONERA
Creators: name: Scherrer, Dominique
name: Dessornes, Olivier
name: Ferrier, Marc
name: Vincent-Randonnier, Axel
name: Moule, Yann
name: Sabel'nikov, Vladimir
Publisher: name: ONERA
Year: 2016
Subjects: RAMJET
SCRAMJET
HYPERSONIC PROPULSION
SUPERSONIC COMBUSTION

description: An overview of selected ONERA research activities on supersonic
combustion and scramjet propulsion for civilian applications since 1992
is presented. The main part is devoted to basic research on supersonic
combustion, including experimental database acquisition and combustion
modeling.  More applied studies on injection and flame stabilization in
research scramjet combustors are then described and the article ends
with a presentation of activities dedicated to real scramjet combustor
design and characterization. This research was carried out either within
the framework of three majors programs, PREPHA (1992-1997), JAPHAR
(1997-2001), and LAPCAT II (2008-2013), or with internal funding.
description: AerospaceLab Journal, Issue 11, June 2016; ISSN: 2107-6596
Tool-Based Attack Graph Estimation and Scenario Analysis for Software Architectures
Creators: name: Walter, Maximilian
name: Reussner, Ralf
Publisher: name: Springer International Publishing
Year: 2023

description: With the increase of connected systems and the ongoing digitalization of various aspects of our life, the security demands for software increase. Software architects should design a secure and resistant system. One solution can be the identification of attack paths or the usage of an access control policy analysis. However, due to the system complexity identifying an attack path or analyzing access control policies is hard. Current attack path calculation approaches, often only focus on the network topology and do not consider the more fine-grained information a software architecture can provide, such as the components or deployment. In addition, the impact of access control policies for a given scenario is unclear. We developed an open-source attack propagation tool, which can calculate an attack graph based on the software architecture. This tool could help software architects to identify potential critical attack paths. Additionally, we extended the used access control metamodel to support a scenario-based access control analysis.
Supplementary document for Super-Resolved Total Internal Reflection Fluorescence Microscopy using Random Illuminations, TIRF-RIM - 6475930.pdf
Creators: name: Affannoukoué, Kévin
name: labouesse, simon
name: Maire, Guillaume
name: Gallais, Laurent
name: Savatier, Julien
name: Allain, Marc
name: Rasedujjaman, Md
name: Legoff, Loic
name: Idier, Jerôme
name: poincloux, renaud
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Metabolism

description: Document giving the precise description of the movies and figures.
Explicit description of the degree function in terms of quantum Lakshmibai-Seshadri paths
Creators: name: Lenart, Cristian
name: Naito, Satoshi
name: Sagaki, Daisuke
name: Schilling, Anne
name: Shimozono, Mark
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We give an explicit and computable description, in terms of the parabolic quantum Bruhat graph, of the degree function defined for quantum Lakshmibai-Seshadri paths, or equivalently, for "projected" (affine) level-zero Lakshmibai-Seshadri paths. This, in turn, gives an explicit and computable description of the global energy function on tensor products of Kirillov-Reshetikhin crystals of one-column type, and also of (classically restricted) one-dimensional sums.
description: arXiv admin note: text overlap with arXiv:1308.3529
Individual experiences and observation of gender-based violence in academia. Executive summary of the analysis of interviews with researchers at higher risk to gender-based violence
Creators: name: Blazyte, Giedre
name: Pilinkaite Sotirovic, Vilana
Publisher: name: Zenodo
Year: 2023
Subjects: Gender-based violence
Qualitative reseearch
Individual interviews
gender+
7P model

description: This report provides a summary of the analysis of qualitative research data collected from 54 individual interviewees about the experiences and/or witnessing of gender-based violence in academia and their impact on individuals and research organisations.
title: Modeling Challenges in Computing Aeronautical Combustion Chambers
Creators: name: Fiorina, Benoit
name: Vie, Aymeric
name: Franzelli, Benedetta
name: Darabiha, Nasser
name: Massot, Marc
name: Dayma, Guillaume
name: Dagaut, Philippe
name: Moureau, Vincent
name: Vervisch, Luc
name: Berlemont, Alain
name: Sabelnikov, Vladimir
name: Riber, Eleonore
name: Cuenot, Benedicte
Publisher: name: ONERA
Year: 2016
Subjects: COMBUSTION MODELING
ATOMIZATION
SPRAY
KEROSENE
POLLUTANT FORMATION

description: This article reviews the modeling challenges for performing Large Eddy Simulations
of aero-nautical combustion chambers. Since the kerosene is injected in a liquid
phase into the combustion chamber, the description of the atomization is of primary
importance. The article first discusses the numerous numerical challenges encountered
during this process, which leads to the formation of small droplets that constitute
a spray. The existing numerical and modeling methods to describe a spray of kerosene
droplets are then presented. The article then focuses on the description of the complex
combustion kinetics. Hundreds of species and thousands of reactions have to be
considered to predict ignition, flame stabilization and pollutant emissions. Due to lengthy
computational times, detailed chemical schemes are too large to be directly used
in CFD. This article then presents the major existing chemical reduction strategies.
Significant interactions of the reactions layers with the flow vortices occur at the subgrid
scale. The question of turbulent combustion modeling is therefore discussed in an
LES context. Finally, the prediction of soot and NOx formation is presented. The review
is illustrated by several examples representative of practical situations encountered in
aeronautical combustors.
description: AerospaceLab Journal, Issue 11, June 2016; ISSN: 2107-6596
ІНТЕНСИФІКАЦІЯ ЯК ФАКТОР ПІДВИЩЕННЯ КОНКУРЕНТОСПРОМОЖНОСТІ ГАЛУЗІ МОЛОЧНОГО СКОТАРСТВА
Creators: name: Мерчанський Володимир
Publisher: name: Zenodo
Year: 2014
Subjects: молочне скотарство, інтенсифікація, конкурентоспроможність

description: Розглянуто основні напрями інтенсифікації галузі молочного скотарства, як головного фактора підвищення конкурентоспроможності.
Cascaded optical transparency in multimode-cavity optomechanical systems
Creators: name: Fan, Linran
name: Fong, King Y.
name: Poot, Menno
name: Tang, Hong X.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Electromagnetically induced transparency has great theoretical and experimental importance in many physics subjects, such as atomic physics, quantum optics, and more recent cavity optomechanics. Optical delay is the most prominent feature of electromagnetically induced transparency, and in cavity optomechanics optical delay is limited by mechanical dissipation rate of sideband-resolved mechanical modes. Here we demonstrate a cascaded optical transparency scheme by leveraging the parametric phonon-phonon coupling in a multimode optomechanical system, where a low damping mechanical mode in the unresolved-sideband regime is made to couple to an intermediate, high frequency mechanical mode in the resolved-sideband regime of an optical cavity. Extended optical delay and higher transmission, as well as optical advancing are demonstrated. These results provide a route to realize ultra-long optical delay, indicating a significant step toward integrated classical and quantum information storage devices.
title: Advanced Simulation of Aeronautical Combustors
Creators: name: Cuenot, Benedicte
name: Vicquelin, Ronan
name: Riber, Eleonore
name: Moureau, Vincent
name: Lartigue, Ghislain
name: Figuer, Alexandre
name: Mery, Yoann
name: Lamouroux, Jean
name: Richard, Stephane
name: Gicquel, Laurent
name: Schmitt, Thomas
name: Candel, Sebastien
Publisher: name: ONERA
Year: 2016
Subjects: AERONAUTICAL BURNERS
TURBULENT COMBUSTION
NUMERICAL SIMULATION
IGNITION
POLLUTANT
COMBUSTION INSTABILITIES

description: The development of new aeronautical combustor concepts relies on the best possible
knowledge of combustion phenomena, such as ignition and extinction, flame
structure, combustion instabilities or pollutant emissions. Numerical simulation, and in
particular the Large Eddy Simulation approach, is a powerful tool to understand, predict
and control the coupled physics involved in turbulent combustion in both academic
and applied configurations. Thanks to reliable physical models, accurate numerical
methods and high efficiency on massively parallel computers, numerical simulation is
now able to produce robust and reliable solutions in complex geometries, taking into
account all technological and physical effects. Today, it is a research tool that contributes
to improving our knowledge of turbulent reacting flows and in particular the
interaction between turbulence and combustion chemistry. It is also an efficient tool
for the design of aeronautical combustors, guiding test benches and possibly reducing
their number.
description: AerospaceLab Journal, Issue 11, June 2016; ISSN: 2107-6596
MPEC 2023-U32 : 2023 TS16
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 TS16

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Making a Cat Mummy. Some Case Studies from Italian Collections
Creators: name: Pubblico, Maria Diletta
Publisher: name: Archeologie tra Oriente e Occidente (CISA)
Year: 2022

description: The mummification of sacred animals surged in the New Kingdom and reached its peak between the Third Intermediate and Roman Periods. Animal mummies are artefacts, which give information about Egyptian cults and funerary practices, especially the mummification process. At the same time, their study offers a unique perspective where one can explore the social and economic impact of the proliferation of sacred animals, as well as the evolution of each individual species and their environment. After a brief overview on cats in Egyptian daily life and material culture, this work will focus on their role as sacred animals, and on different techniques used to make cat mummies, using unpublished samples kept in Italian collections as case studies.
description: Archeologie tra Oriente e Occidente (CISA), V. 1 (2022): Archeologie tra Oriente e Occidente (CISA)
Interlayer interaction in general incommensurate atomic layers
Creators: name: Koshino, Mikito
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a general theoretical formulation to describe the interlayer interaction in incommensurate bilayer systems with arbitrary crystal structures. By starting from the tight- binding model with the distance-dependent transfer integral, we show that the interlayer coupling, which is highly complex in the real space, can be simply written in terms of generalized Umklapp process in the reciprocal space. The formulation is useful to describe the interaction in the two-dimensional interface of different materials with arbitrary lattice structures and relative orientations. We apply the method to the incommensurate bilayer graphene with a large rotation angle, which cannot be treated as a long-range moiré superlattice, and obtain the quasi band structure and density of states within the first-order approximation.
description: 12 pages, 5 figures, to be published in New Journal of Physics
title: Methodology for the Numerical Prediction of Pollutant Formation in Gas Turbine Combustors and Associated Validation Experiments
Creators: name: Dupoirieux, Francis
name: Bertier, Nicolas
name: Guin, Christian
name: Dorey, Luc-Henry
name: Geigle, Klaus Peter
name: Eberle, Christian
name: Gerlinger, Peter
Publisher: name: ONERA
Year: 2016
Subjects: GAS TURBINE COMBUSTOR
CFD
LARGE EDDY SIMULATION
TURBULENT REACTIVE FLOW
SOOT FORMATION
NOX FORMATION
TABULATED CHEMISTRY

description: For aircraft engine manufacturers the formation of pollutants such as NOx or soot particles is an important issue because the regulations on pollutant emissions are becoming increasingly stringent. In order to comply with these regulations, new concepts of gas turbine combustors must be developed with the help of simulation tools. In this paper we present two different strategies, proposed by ONERA and DLR respectively, to simulate soot or NOx formation in combustors. The first one is based on simple chemistry models allowing significant effort to be spent on the LES description of the flow, while the second one is based on more accurate, but also more expensive, models for soot chemistry and physics. Combustion experiments dedicated to the validation of these strategies are described next: The first one, performed at DLR, was operated at a semi-technical scale and aimed at very accurate and comprehensive information on soot formation and oxidation under well-defined experimental conditions; the second one, characterized at ONERA, was aimed at reproducing the severe conditions encountered in realistic gas turbine combustors. In the third part of the paper the results of combustion simulations are compared to those of the validation experiments. It is shown that a fine description of the physics and chemistry involved in the pollutant formation is necessary but not sufficient to obtain quantitative predictions of pollutant formation. An accurate calculation of the turbulent reactive flow interacting with pollutant formation and influencing dilution, oxidation and transport is also required: when the temperature field is correctly reproduced, as is the case of the ONERA simulation of the DLR combustor, the prediction of soot formation is quite satisfactory while difficulty in reproducing the temperature field in the TLC combustor leads to overestimations of NOx and soot concentrations.
description: AerospaceLab Journal, Issue 11, June 2016; ISSN: 2107-6596
Uniform Random Number Generation from Markov Chains: Non-Asymptotic and Asymptotic Analyses
Creators: name: Hayashi, Masahito
name: Watanabe, Shun
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: In this paper, we derive non-asymptotic achievability and converse bounds on the random number generation with/without side-information. Our bounds are efficiently computable in the sense that the computational complexity does not depend on the block length. We also characterize the asymptotic behaviors of the large deviation regime and the moderate deviation regime by using our bounds, which implies that our bounds are asymptotically tight in those regimes. We also show the second order rates of those problems, and derive single letter forms of the variances characterizing the second order rates. Further, we address the equivocation rates for these problems.
description: There is no technical overlap with the latest version of arXiv:1309.7528
title: Measuring Non-Volatile Particle Properties in the Exhaust of an Aircraft Engine
Creators: name: Ortega, Ismael
name: Delhaye, David
name: Ouf, Francois-Xavier
name: Ferry, Daniel
name: Focsa, Christian
name: Irimiea, Cornelia
name: Carpentier, Yvain
name: Chazallon, Bertrand
name: Parent, Philippe
name: Laffon, Carine
name: Penanhoat, Olivier
name: Harivel, Nadine
name: Gaffie, Daniel
name: Vancassel, Xavier
Publisher: name: ONERA
Year: 2016
Subjects: AIRCRAFT ENGINE EMISSIONS
SOOT
PARTICULATE MATTER
MEASUREMENTS
NVPM

description: The steady growth of air traffic and its foreseen expansion during future years have
raised concerns about its potential impact on climate and ground-level air quality.
So far, the smoke number has been used to evaluate the non-volatile particulate matter
amount emitted by aircraft engines, but it is a poor proxy for modern engine emissions.
Therefore, new sampling and measurement techniques have recently been tested on
aircraft engine emissions, especially as a new ICAO particle emission standard is currently
being developed. Number and mass of emitted particles are generally used, but
are not sufficient to fully characterize soot emissions and further address atmospheric
impact issues. Chemical composition is crucial to evaluate their atmospheric reactivity.
This paper presents a complete set of techniques that have been used to characterize
soot emissions from an aircraft engine in a comprehensive manner. It reports results
from a campaign on a PowerJet SaM146 engine, performed within the framework of
the MERMOSE (Mesure et Etude de la Reactivite des emissions de MOteurS aEronautiques)
project. It emphasizes the influence of the engine regime, ranging from 30% to
100% of the takeoff thrust, on the various particle properties investigated, including the
size, number, morphology and chemical composition.
description: AerospaceLab Journal, Issue 11, June 2016; ISSN: 2107-6596
Cross-sector sustainability benchmarking of major utilities in the United Kingdom
Creators: name: Walker, Nathan L.
name: Styles, David
name: Coughlan, Paul
name: Williams, A. Prysor
Publisher: name: University of Limerick
Year: 2023
Subjects: Engineering

description: Benchmarking can be a useful tool for utility companies to improve their efficiency, offering many potential positives such as assessing performance objectively, exposing areas where improvement is needed, and identifying best performing companies, ultimately illuminating possible strategies for poorer performers to implement. Despite these positives, the challenge remains of how to compare the performance of different organisations from different sectors. This research aimed to develop a methodology to effectively compare companies across sectors using UK utilities across the water and sewage, energy, and communications sectors as a case study. A meth?odology was constructed based on service, environmental, and financial metrics, and cross-sector benchmarking was undertaken, which generated performance scores based on company metrics relative to sector peers. This circumnavigated issues of indicators often being mismatched across sectors and the lack of relevance and context when sectors do use similar indicators. Results showed that the sample of 18 utilities had two distinct clusters, one of eight sector leaders and the other of ten lower performers. Sky had the highest overall score of 13.5 (maximum 15), suggesting it significantly outperformed the rest of the communications sector. Similarly, British Gas and SSE lead the energy sector, whilst Wessex, Severn Trent, and United Utilities lead the way for water and sewage companies. The two distinct groups of sector leaders and lower performers can be employed to identify other companies that may offer learning opportunities. Top performers can assess top performers in other sectors to identify how they might continue improving, rather than be potentially limited within their sectors. Conversely, lower-performing companies can look within and across sectors to identify best practices to improve their performance. The methodological development and UK utility sustainability results collectively provide novel insight into the water, energy, and communication sectors and contribute to the international academic literature on benchmarking by illustrating an alternative and unique solution to comparing diverse sectors in any region.
EMPA-HEART 2 RCE Data Supplement
Creators: name: Verma, Subodh
name: Teoh, Hwee
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 320199
subject: Cardiovascular medicine and haematology not elsewhere classified

description: Data supplement for EMPA-HEART RCE publication for the American Journal of Physiology
Construction of the Energy-Momentum Tensor for Wilson Actions
Creators: name: Sonoda, H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Given an arbitrary Wilson action of a real scalar field, we discuss how to construct the energy-momentum tensor of the theory. Using the exact renormalization group, we can determine the energy-momentum tensor implicitly, but we are short of obtaining an explicit formula in terms of the Wilson action.
description: 20 pages, LaTeX 2e, no figure, updated version
NPR/PBS NewsHour/Marist Poll: October 2020
Creators: name: National Public Radio
name: PBS NewsHour
Publisher: name: Roper Center for Public Opinion Research
Year: 2020

description: Supreme Court nominee Amy Coney Barrett (2); confidence in United States Postal Service to deliver election related mail (1); voter likelihood (1); national mask mandate (1); benefit from presidential debate (1); vote for 2020 president (1); Democratic presidential candidate Joe Biden vs. President Donald Trump on issues (3); one word description of Trump/Biden (2); Trump's time in office success or failure (1); partisanship (3); ideology (1); voted in 2016 presidential election (1); attempts to intimidate voters (1); Biden vs. Trump (1); virtual presidential debate (1); interest in November election (1); voted in previous elections (1); registered to vote (1); possibility of changing vote choice (2); coronavirus (COVID-19) (2); trust information from White House about President Donald Trump's health (1); Trump job approval (3); military service (1); method of voting (1).
Damping of liquid sloshing by foams: from everyday observations to liquid transport
Creators: name: Cappello, Jean
name: Sauret, Alban
name: Boulogne, François
name: Dressaire, Emilie
name: Stone, Howard A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We perform experiments on the sloshing dynamics of liquids in a rectangular container submitted to an impulse. We show that when foam is placed on top of the liquid the oscillations of the free interface are significantly damped. The ability to reduce sloshing and associated splashing could find applications in numerous industrial processes involving liquid transport.
description: Accepted for publication in Journal of Visualization
title: Investigation and Modelling of Combustion Instabilities in Aero Engines
Creators: name: Gajan, Pierre
name: Simon, Frank
name: Orain, Mikael
name: Bodoc, Virginel
Publisher: name: ONERA
Year: 2016
Subjects: INSTABILITY
ACOUSTIC
COMBUSTION
TRANSFER FUNCTION
ATOMIZATION
SPRAY
MODELLING
LES

description: Combustion instability results from a coupling between acoustic and heat release
fluctuations. From the analysis of published works by various research teams
including ONERA, this paper describes the coupling lines involved, the model used to
describe it and the methods developed to predict the thermo-acoustic risks. The application
is focused on the liquid-fueled aero engine specificities. Recent results obtained
at ONERA on the influence of the liquid flow behavior on these couplings are described
and compared with LES results.
description: AerospaceLab Journal, Issue 11, June 2016; ISSN: 2107-6596
The influence of geology upon river flows: with particular reference to the Lothians area
Creators: name: Wright, Colin E.
Publisher: name: Loughborough University
Year: 2020
Subjects: subject: 49999 Earth Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences

description: The influence of geology upon river flows: with particular reference to the Lothians area
Structuring of studied concepts as a criterion for learning success
Creators: name: Eremin, Evgeny
Publisher: name: Zenodo
Year: 2013
Subjects: subject: Education
subject: Learning processes
subject: Russia
subject: https://iskouk.org/subjects/FWXBPXIL
subject: https://iskouk.org/subjects/O2UECUAK

description: Structuring of studied concepts as a criterion for learning success
Multi-Wavelength Variability. Accretion and Ejection at the Fastest Timescales
Creators: name: Uttley, Phil
name: Casella, Piergiorgio
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Multiwavelength variability data, combined with spectral-timing analysis techniques, provides information about the causal relationship between different physical components in accreting black holes. Using fast-timing data and long-term monitoring, we can probe the behaviour of the same components across the black hole mass scale. In this chapter we review the observational status of multiwavelength variability in accreting black holes, from black hole X-ray binaries to AGN, and consider the implications for models of accretion and ejection, primarily considering the evidence for accretion disc and jet variability in these systems. We end with a consideration of future prospects in this quickly-developing field.
description: Accepted for publication in Space Science Reviews. Also appeared in hard cover in the Space Sciences Series of ISSI "The Physics of Accretion onto Black Holes" (Springer Publisher)
title: Recent Improvements in Combustion Noise Investigation: from the Combustion Chamber to Nozzle Flow
Creators: name: Huet, Maxime
name: Vuillot, Francois
name: Bertier, Nicolas
name: Mazur, Marek
name: Kings, Nancy
name: Tao, Wenjie
name: Scouflaire, Philippe
name: Richecoeur, Franck
name: Ducruix, Sebastien
name: Lapeyre, Corentin
name: Poinsot, Thierry
Publisher: name: ONERA
Year: 2016
Subjects: AEROACOUSTICS
COMBUSTION
REACTIVE FLOW
COMBUSTION NOISE
ENTROPY NOISE

description: For a long time, engine noise has been dominated by fan and jet noise. With their
reduction for modern turbojets, for instance, combustion noise is no longer negligible
and efforts are concentrated on its understanding. The objective of the European
project RECORD is to help to understand the fundamental mechanisms of core noise,
in order to reduce it. In this paper, the recent advances achieved within the project for
the noise generated through a nozzle are presented. This work includes the definition
of a combustion test bench at the EM2C laboratory, equipped with various diagnostic
techniques and an outlet nozzle to pressurize the chamber and generate entropy noise.
Reactive simulations of this facility are performed by ONERA and CERFACS using LES.
Finally, simulated flow fields are post-processed to determine direct (acoustic) and
indirect (entropy) contributions to the global noise generated by the nozzle. This work
is a first step before the modeling of a full engine, including the turbine stages.
description: AerospaceLab Journal, Issue 11, June 2016; ISSN: 2107-6596
title: Phase dependency of success factors in startups
Creators: name: Klein, Torsten
name: Dasija, Wienel
name: Meinerzhagen, Sophie
Year: 2022
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften

description: The purpose of this article is to analyze the specific success factors of start-ups and to examine their phase dependency. Based on a literature study, 13 start-up-specific success factors from three categories (founders, situational occurrence, strategy) are identified and examined for their influence and phase dependency. For this purpose, 54 employees of successful german start-ups are asked how strongly they assess the influence of the respective success factor and in which phase (pre-foundation, foundation, growth) it has the strongest effect. The results show that the hypotheses derived from the theory are confirmed to a very large extent by the study.
description: IBAL Schriftenreihe: Contributions to Business Administration and Leadership; 2022,1
Modelling for Robust Feedback Control of Fluid Flows
Creators: name: Jones, Bryn Ll.
name: Heins, Peter H.
name: Kerrigan, Eric C.
name: Morrison, Jonathan F.
name: Sharma, Ati S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This paper addresses the problem of obtaining low-order models of fluid flows for the purpose of designing robust feedback controllers. This is challenging since whilst many flows are governed by a set of nonlinear, partial differential-algebraic equations (the Navier-Stokes equations), the majority of established control theory assumes models of much greater simplicity, in that they are firstly: linear, secondly: described by ordinary differential equations, and thirdly: finite-dimensional. Linearisation, where appropriate, overcomes the first disparity, but attempts to reconcile the remaining two have proved difficult. This paper addresses these two problems as follows. Firstly, a numerical approach is used to project the governing equations onto a divergence-free basis, thus converting a system of differential-algebraic equations into one of ordinary differential equations. This dispenses with the need for analytical velocity-vorticity transformations, and thus simplifies the modelling of boundary sensing and actuation. Secondly, this paper presents a novel and straightforward approach for obtaining suitable low-order models of fluid flows, from which robust feedback controllers can be synthesised that provide a priori guarantees of robust performance when connected to the (infinite-dimensional) linearised flow system. This approach overcomes many of the problems inherent in approaches that rely upon model-reduction. To illustrate these methods, a perturbation shear stress controller is designed and applied to plane channel flow, assuming arrays of wall mounted shear-stress sensors and transpiration actuators. DNS results demonstrate robust attenuation of the perturbation shear-stresses across a wide range of Reynolds numbers with a single, linear controller.
description: Accepted for publication in the Journal of Fluid Mechanics
Supplementary Table 1.docx
Creators: name: Kruger, Ruan
name: Holm, Hannes
name: Jujic, Amra
name: Lamiral, Zohra
name: Sophia Uys, Aletta
name: Girerd, Nicolas
name: Magnusson, Martin
Publisher: name: figshare
Year: 2023
Subjects: Cardiology (incl. cardiovascular diseases)

description: C-index for PWV, GLS and PWV/GLS (univariable analyses)
title: Experimental Investigation of a Low-Emission Combustor Designed for MID Power Gas Turbine
Creators: name: Vedeshkin, Georgy
name: Sverdlov, Evgeniy
name: Dubovitsky, Alexey
Publisher: name: ONERA
Year: 2016
Subjects: LOW EMISSION COMBUSTOR
NOX FORMATION
CO EMISSION
EXPERIMENTAL COMBUSTOR
MID-POWER GAS TURBINE

description: The paper describes the main mechanisms of NOx formation (thermal, prompt NOx
description: AerospaceLab Journal, Issue 11, June 2016; ISSN: 2107-6596
SANE - Secure ANalysis Environment @SURF Cloud
Creators: name: Van Der Meer, Lucas
name: Claeyssens, Steven
name: Brandt, Martin
Publisher: name: Zenodo
Year: 2022
Subjects: Data infrastructure
Secure analysis
Privacy
Sensitive data
Copyright
Competition

description: Privacy, copyright and competition considerations stand in the way of sharing sensitive data for scientific purposes. We propose the Secure Analysis Environment (SANE): a virtual container in which the researcher analyses sensitive data, but the data provider retains full control. In SANE, scientists can conduct research according to the principles of Five Safes with data that was previously hardly available. SANE exists in 2 variants: Tinker SANE: the researcher can see, manipulate and play with the data. Blind SANE: the researcher submits an algorithm without seeing the data. The data provider approves the algorithm and the output. Lucas van der Meer, ODISSEI & Steven Claeyssens, Koninklijke Bibliotheek
The effects of heavy metals on anaerobic digestion processes
Creators: name: Sylvester, Ruth
Publisher: name: Loughborough University
Year: 2020
Subjects: subject: 90509 Water Resources Engineering
subject: FOS: Civil engineering

description: The optimisation and wider utilisation of renewable energy technologies is essential for the sake of the global climate and all life on earth. Anaerobic digestion of organic matter is one such technology that has its place as one of the most important methods of waste reduction and sustainable energy generation. Already being utilised in a multitude of contexts worldwide, anaerobic digestion still has vast unrealised potential. A major cause of this is process inhibition, and one of the main groups of chemical inhibitors is heavy metals. However, the literature is currently lacking in breadth and depth of understanding of the role of heavy metals in anaerobic digestion processes. Furthermore, the addition of trace nutrients to reactors in large-scale applications is becoming a more common practise for the purposes of biogas enhancement and improved reactor stability. However, the detailed effects of specific trace elements on different feedstocks and in various applications has not been widely studied. This work investigated the effects of Co, Fe, Hg, W and Zn on anaerobic digestion processes through a series of laboratory experiments. Sewage sludge spiked with these metals was used as the feedstock for 9L continuously-fed anaerobic digesters and biochemical methane potential tests. Spiked heavy metal concentrations were carefully chosen for the purpose of measuring the impact of selected metals on anaerobic processes. Biogas quantity and quality were continuously recorded, as were the reactor parameters, TS%, VS%, pH, acid/alkalinity ratio, VFA and ammonia concentrations, in order to closely monitor metal-effects over time. Reactor stability and biogas production were negatively affected by Hg, Zn and Fe, with Hg exhibiting extremely toxic effects even at low concentrations. Co had both negative and positive effects on anaerobic processes, depending on the spiking concentration. W exhibited biogas promotion effects at concentrations between 0.6-10ppm, and its addition did not negatively affect reactor stability. Recommendations were made for users of anaerobic digestion technologies regarding the potential damage or enhancement effects certain metals would be expected to have on their reactors.
Data for : A Coarse Grained Molecular Dynamics Investigation of the Role of Mineral Arrangement on the Mechanical Properties of Mineralised Collagen Fibrils
Creators: name: Tavakol, Mahdi
Publisher: name: figshare
Year: 2022
Subjects: subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering

description: Related to the manuscript: A Coarse Grained Molecular Dynamics Investigation of the Role of Mineral Arrangement on the Mechanical Properties of Mineralised Collagen Fibrils
SANE - Secure ANalysis Environment @SURF Cloud
Creators: name: Van Der Meer, Lucas
name: Claeyssens, Steven
Publisher: name: Zenodo
Year: 2022
Subjects: Data infrastructure
Secure analysis
Privacy
Sensitive data
Copyright
Competition

description: Privacy, copyright and competition considerations stand in the way of sharing sensitive data for scientific purposes. We propose the Secure Analysis Environment (SANE): a virtual container in which the researcher analyses sensitive data, but the data provider retains full control. In SANE, scientists can conduct research according to the principles of Five Safes with data that was previously hardly available. SANE exists in 2 variants: Tinker SANE: the researcher can see, manipulate and play with the data. Blind SANE: the researcher submits an algorithm without seeing the data. The data provider approves the algorithm and the output. Lucas van der Meer, ODISSEI & Steven Claeyssens, Koninklijke Bibliotheek
TEACHING ENGLISH TO ADULT LEARNERS
Creators: name: Khadjaeva, Naima
Publisher: name: Zenodo
Year: 2024

description: Teaching English to adult learners presents unique challenges and opportunities that differ from teaching children. This paper explores the methods, materials, and pedagogical frameworks suitable for adult education, focusing on the importance of motivation, relevance, and practical application in the learning process. It highlights various teaching strategies, including communicative language teaching, task-based learning, and the use of technology. The findings suggest that a learner-centered approach that leverages adults' experiences and interests significantly enhances language acquisition and retention.