cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Patterns of airway obstruction of non-acquired origin in children
with and without major congenital anomalies
Creators: name: Gonçalves Dias, Rodrigo
Publisher: name: Universität Bern
Year: 2023
Subjects: subject: 610 Medicine & health

description: Major congenital anomalies are known to play a role in the management and prognosis of airway obstruction. Most studies assess acquired forms of airway obstruction. Data on congenital or otherwise non-acquired forms of airway obstruction is sparse. In this retrospective, single-institution cohort study, we sought to evaluate and compare the patterns of airway obstruction in children with and without major congenital anomalies, and to assess the impact of management and outcome, irrespective of aetiology. Fifty-five patients were included, 23 with and 32 without underlying major congenital anomalies. Multilevel airway obstruction (usually affecting the nasopharynx, oropharynx, and the trachea) was more common in children with congenital anomalies (91% vs. 41%, p < .001). Consequently, these children required more frequent and earlier surgical management, especially tracheostomy and adenotonsillar surgery.
Conclusions: Major congenital anomalies are associated with multilevel airway obstruction and poor functional prognosis. A simple clinical definition considering impact of major congenital anomalies on development and growth may help guide management plans following endoscopic evaluation of the entire airway and flanked by multidisciplinary discussions.
Observation of the Open Clusters in the UltraViolet
Creators: name: Ramezani, Tahereh
name: Paunzen, Ernst
Publisher: name: Zenodo
Year: 2023
Subjects: observaton- Open Clusters- UltraViolet

description: My poster is related to observing the new open clusters in Ultraviolet and analyzing their data in photometry. We observed via the DK1.54 meter telescope in Chile and the CASLEO telescope in Argentina in the Ultraviolet filter because it is the best way of observation for Reddening. Reddening is independent of distance, age, and metallicity. Our method is Isochrone fitting for our observed open clusters. For Isochrone fitting, we need Reddening. Our goals are: 1) Are these new open clusters that we observed with DK1.54 and CASLEO telescopes real open clusters or not? 2) Do Reddening for all our observed clusters. The Gaia Data Release 3 will allow us to precisely study known Galactic open clusters. We collected the available photometric and astrometric data and then observed new open clusters with DK1.54 and CASLEO telescopes photometrically in the Ultraviolet region in a homogeneous way. With these data, a first homogeneous census of the open clusters in the Milky Way using Ultraviolet photometry can be derived and compared to the literature.
AMPERE: Interconnection Technologies for High Reliable Bifacial Heterojunction Glass/Glass Photovoltaic Modules
Creators: name: Barth, V.
name: Cattaneo, G.
name: Faes, A.
name: Li, H.
name: Levrat, J.
name: Bettinelli, A.
name: Sicot, L.
name: Richter, A.
name: Rametta, F.
name: Colletti, C.
name: Izzi, M.
name: Despeisse, M.
name: Ballif, C.
Publisher: name: WIP
Year: 2020
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 890-893
description: A premium photovoltaic module technology with high efficiency, high reliability, and low LCOE has been industrialized in Europe by Enel Green Power through the AMPERE project. An innovative full-scale automated 200MWp/y production line of SHJ bifacial cells and modules has been started up in 2019 at the Enel Green Power 3SUN Fab in Catania (Italy). In this paper, we report the investigations performed on two low interconnection solutions meeting the low temperature requirements of HJT technology that have been investigated in terms of performance, production costs and reliability: the BusBar/ribbons interconnection technology with Electrical Conductive Adhesive (ECA) and the SmartWire Contacting Technology (SWCT) developed by Meyer Burger. First, the cell metallization and the interconnection designs have been optimized. Then results have then been validated for full-size (72 cells) modules by IEC61215 certification and extended Damp Heat (DH, 85°C, 85%RH) and Thermal Cycling (TC, -40°C + 85°C) tests, leading to complete certifications of both approaches.
Shakspeare's dramatic songs : consisting of all the songs, duets, trios and chorusses, in character, as introduced by him in his various dramas : the music, partly new & partly selected with new symphonies and accompaniments for the piano forte from the works of Purcell, Fielding, Boyce, Nares, Arne, Cooke, J. Smith, I.S. Smith, T. Linley and R.I.S. Sterens, to which are prefixed a general introduction ... by Wm. Linley
Creators: name: Linley, W. (William), 1771-1835
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Part songs, English
valueUri: http://id.worldcat.org/fast/1053960
subject: Musical settings
valueUri: http://id.worldcat.org/fast/1423813
subject: Incidental music
valueUri: http://id.worldcat.org/fast/968568
subject: Songs, English
valueUri: http://id.worldcat.org/fast/1126319

description: The music is a combination of partly new and partly selected with new symphonies and accompaniments for the piano forte. Works by Purcell, Fielding, Boyce, Nares, Arne, Cooke, J. Smith, I. S. Smith, T. Linley and R. I. S. Sterens. Arrangements by Linley. Appendix to Vol. 2 contains the music in Macbeth and newly arranged by Samuel Wesley.
Enhanced spin-dependent parity non-conservation effect in the $7s {}^2S_{1/2} \to 6d {}^2D_{5/2}$ transition in Fr: A possibility for unambiguous detection of nuclear anapole moment
Creators: name: Sahoo, B. K.
name: Aoki, T.
name: Das, B. P.
name: Sakemi, Y.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Nuclear Theory (nucl-th)
subject: Computational Physics (physics.comp-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Employing the relativistic coupled-cluster method, comparative studies of the parity non-conserving electric dipole amplitudes for the $7s \ ^2S_{1/2} \rightarrow 6d \ ^2D_{5/2}$ transitions in $^{210}$Fr and $^{211}$Fr isotopes have been carried out. It is found that these transition amplitudes, sensitive only to the nuclear spin dependent effects, are enhanced by more than 3 orders compared to the low-lying $S-D_{5/2}$ transitions in Ba$^+$ and Ra$^+$ owing to the very large contributions from the electron core-polarization effects in Fr. This translates to a relatively large and, in principle, measurable induced light shift, which would be a signature of nuclear spin dependent parity nonconservation that is dominated by the nuclear anapole moment in a heavy atom like Fr. A plausible scheme to measure this quantity using the Cyclotron and Radioisotope Center (CYRIC) facility at Tohoku University has been outlined.
description: 5 pages, 2 tables and 1 figure
Standardization Work of Non-Uniform Wind Loads Test on PV Module
Creators: name: Hsu, S.-T.
Publisher: name: WIP
Year: 2020
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 894-899
description: The damaged issues of solar photovoltaic (PV) system due to severe storm like typhoons or hurricanes are very frequent and unpredictable. Currently, IEC standards are limited in uniform mechanical load tests for low wind speed cases such as static type (IEC 61215-2:2016, MQT16) or dynamic type (IEC TS 62782:2016). But these documents lacks of suitable methods to simulate the true scenario like the uneven wind loads or high wind speed applied on PV module even its fixed fixtures. Therefore, this research focus on how to develop one new non-uniform wind loads test that also fully consider the effects of different environmental factors (e.g., wind speed (V), wind direction angle () and module tilt ()). In order to fulfil the above requirements and evaluate the wind resistance of PV module, results are being applied to one draft about wind-loads test, and discussed by IEC TC82 since 2019.
Binding Energy of Molecules on Water Ice: Laboratory Measurements and Modeling
Creators: name: He, Jiao
name: Acharyya, Kinsuk
name: Vidali, Gianfranco
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We measured the binding energy of N$_2$, CO, O$_2$, CH$_4$, and CO$_2$ on non-porous (compact) amorphous solid water (np-ASW), of N$_2$ and CO on porous amorphous solid water (p-ASW), and of NH$_3$ on crystalline water ice. We were able to measure binding energies down to a fraction of 1\% of a layer, thus making these measurements more appropriate for astrochemistry than the existing values. We found that CO$_2$ forms clusters on np-ASW surface even at very low coverages. The binding energies of N$_2$, CO, O$_2$, and CH$_4$ decrease with coverage in the submonolayer regime. Their values at the low coverage limit are much higher than what is commonly used in gas-grain models. An empirical formula was used to describe the coverage dependence of the binding energies. We used the newly determined binding energy distributions in a simulation of gas-grain chemistry for cold cloud and hot core models. We found that owing to the higher value of desorption energy in the sub-monlayer regime a fraction of all these ices stays much longer and up to higher temperature on the grain surface compared to the single value energies currently used in the astrochemical models.
description: 10 pages, 14 figures, submitted to ApJ
Radiation from a D-dimensional collision of shock waves: Two dimensional reduction and Carter-Penrose diagram
Creators: name: Coelho, Flávio S.
name: Sampaio, Marco O. P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyse the causal structure of the two dimensional (2D) reduced background used in the perturbative treatment of a head-on collision of two $D$-dimensional Aichelburg-Sexl gravitational shock waves. After defining all causal boundaries, namely the future light-cone of the collision and the past light-cone of a future observer, we obtain characteristic coordinates using two independent methods. The first is a geometrical construction of the null rays which define the various light cones, using a parametric representation. The second is a transformation of the 2D reduced wave operator for the problem into a hyperbolic form. The characteristic coordinates are then compactified allowing us to represent all causal light rays in a conformal Carter-Penrose diagram. Our construction holds to all orders in perturbation theory. In particular, we can easily identify the singularities of the source functions and of the Green's functions appearing in the perturbative expansion, at each order, which is crucial for a successful numerical evaluation of any higher order corrections using this method.
description: 20 pages, 3 figures. To appear in a Special Issue of the IJMPD on Selected Papers of the III Amazonian Symposium on Physics (Eds. C. Herdeiro, E. Berti, V. Cardoso, L. C. Crispino, L. Gualtieri and U. Sperhake)
Accelerating Materials-Space Exploration for Thermal Insulators by Mapping Materials Properties via Artificial Intelligence
Creators: name: Purcell, Thomas
name: Scheffler, Matthias
name: Ghiringhelli, Luca M.
name: Carbogno, Christian
Publisher: name: figshare
Year: 2023
Subjects: Condensed matter modelling and density functional theory
Condensed matter physics not elsewhere classified
Modelling and simulation
Artificial intelligence not elsewhere classified

description: The scripts used to generate all figures for the manuscript identified by: arXiv:2204.12968
 Abstract:
 Reliable artificial-intelligence models have the potential to accelerate the discovery of materials with optimal properties for various applications, including superconductivity, catalysis, and thermoelectricity. Advancements in this field are often hindered by the scarcity and quality of available data and the significant effort required to acquire new data. For such applications, reliable surrogate models that help guide materials space exploration using easily accessible materials properties are urgently needed. Here, we present a general, data-driven framework that provides quantitative predictions as well as qualitative rules for steering data creation for all datasets via a combination of symbolic regression and sensitivity analysis. We demonstrate the power of the framework by generating an accurate analytic model for the lattice thermal conductivity using only 75 experimentally measured values. By extracting the most influential material properties from this model, we are then able to hierarchically screen 732 materials and find 80 ultra-insulating materials.
Investigating the role of interactions and mergers in driving the star-forming properties of dwarf galaxies in field and group environments
Creators: name: MARTIN, Garreth
Publisher: name: Zenodo
Year: 2023

description: Recent advancements in astronomical instruments including JWST, Rubin Observatory, and Euclid, in conjunction with increasingly sophisticated cosmological simulations, are now opening up opportunities for statistical studies in low-mass and low-surface-brightness regimes, enabling investigations of faint dwarf galaxies at distances far beyond the Local Volume. These galaxies are critical for understanding the stellar mass assembly of high-mass galaxies and represent essential laboratories for investigating various physical processes play fundamental roles the growth and evolution of all galaxies. In this study, we use the NEWHORIZON cosmological simulation to examine how local environment influences the mass assembly and structural evolution of approximately 1000 field and group dwarfs. Our results demonstrate that in the dwarf regime, unlike in the high-mass regime, mergers are not the dominant mechanism for ex-situ mass assembly. Instead, fly-bys and interactions within the tidal field play a more substantial role in the stellar mass budget, as these interactions become more efficient at driving star formation enhancements in lower mass haloes. Significantly, we also find that both mergers and fly-bys or other environmental interactions produce similar morphological signatures in dwarf galaxies. Consequently, dwarfs display morphological disturbances consistent with them being mergers or merger remnants at a similar rate to high-mass galaxies, but the majority of these disturbances are, in fact, the result of other kinds of interaction (in contrast to high-mass galaxies, for which almost all disturbances arise from mergers). I will discuss the implications of these findings for future studies in the dwarf regime as new instruments begin to obtain more robust, statistical samples beyond the local Universe and examine whether these observations may allow us to differentiate between these two processes.
Comprehensive Evaluation of IEC Measurement Procedures for Bifacial Solar Cells and Modules
Creators: name: Rauer, M.
name: Schmid, A.
name: Guo, F.
name: Neuberger, F.
name: Gebhardt, P.
name: Hohl-Ebinger, J.
Publisher: name: WIP
Year: 2020
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 867-876
description: The IEC technical specification (TS) 60904-1-2 has been published recently in order to establish a standardized way of evaluating bifacial solar cells and modules. Two different methods for indoor measurements of the current-voltage characteristics of bifacial devices have been reported, which are based on simultaneous front and rear illumination (referred to as bifacial method) or on illumination at elevated irradiance levels from front only (referred to as equivalent irradiance (GE) method). In this study, the measurement procedures and input parameters specified by the IEC TS for the bifacial and GE methods are analysed in detail. This particularly applies to the bifaciality coefficients Isc and Pmpp, which are the ratios of rear to front Isc and Pmpp, respectively, and are used for the calculation of the equivalent irradiance GE. It is shown that the bifaciality coefficients have to be selected carefully to accurately determine the bifacial low-light performance with the GE method. Evaluating the bifaciality coefficients as proposed by the IEC TS for nonlinear solar cells can lead to deviations between the bifacial and GE methods of up to several percent in the parameters BiFi, PmppBiFi10% and PmppBiFi20% –standardized measures for the power gain of the bifacial device caused by additional rear irradiance. In addition, differences between bifacial and GE methods can also arise for bifacial solar modules with partial rear shading. By comparing measurements with GE and bifacial methods for these modules, it is shown that following the IEC procedure can lead to errors in BiFi of more than 18 % and in PmppBiFi20% of more than 2 %. An alternative approach of evaluating bifaciality coefficients is therefore proposed in this study: By applying only the bifaciality coefficient Isc, which is physically the most meaningful coefficient, and by evaluating Isc at the actual front irradiance of the measurement, the agreement between the bifacial and GE methods can be considerably improved. A criterion for the applicability of the GE method using Isc is derived by systematically varying the rear shading fraction of bifacial modules. It is thus shown that both methods can be applied in good agreement, if amendments to the IEC TS are made.
Structure of Universe and research
Creators: name: Brax, Jere
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 490299
subject: Mathematical physics not elsewhere classified

description: Structure of Universe:
https://chatgpt.com/share/dae5308c-8e80-4125-9eda-747297ca702f

Research:
https://chatgpt.com/share/0811fd04-7196-4302-a0b1-39f80ad70eff
Quest for potentials in the quintessence scenario
Creators: name: Hara, Tetsuya
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The time variation of the equation of state $w$ for quintessence scenario with a scalar field as dark energy is studied up to the third derivative ($d^3w/da^3$) with respect to the scale factor $a$, in order to predict the future observations and specify the scalar potential parameters with the observables. The third derivative of $w$ for general potential $V$ is derived and applied to several types of potentials. They are the inverse power-law ($V=M^{4+α}/Q^α$), the exponential ($V=M^4\exp{(βM/Q)}$), the cosine ($V=M^4(\cos (Q/f)+1)$) and the Gaussian types ($V=M^4\exp(-Q^2/σ^2)$), which are prototypical potentials for the freezing and thawing models. If the parameter number for a potential form is $ n$, it is necessary to find at least for $n+2$ independent observations to identify the potential form and the evolution of the scalar field ($Q$ and $ \dot{Q} $). Such observations would be the values of $ Ω_Q, w, dw/da. \cdots $, and $ dw^n/da^n$. Since four of the above mentioned potentials have two parameters, it is necessary to calculate the third derivative of $w$ for them to estimate the predict values. If they are tested observationally, it will be understood whether the dark energy could be described by the scalar field with this potential. Numerical analysis for $d^3w/da^3$ are made under some specified parameters in the investigated potentials. It becomes possible to distinguish the freezing and thawing modes by the accurate observing $dw/da$ and $d^2w/da^2$ in some parameters.
description: 6 pages, 2 figures. arXiv admin note: text overlap with arXiv:1503.03678
An Optical/NIR Exploration of Forming Cluster Environments at High Redshift with VLT, Keck, and HST
Creators: name: Lemaux, Brian C.
name: Cucciati, Olga
name: Forrest, Ben
name: Shah, Ekta
name: Staab, Priti
name: Hung, Denise
name: Lubin, Lori
name: Gal, Roy
Publisher: name: Zenodo
Year: 2023

description: The past decade has been witness to immense progress in the understanding of the early stages of cluster formation both from a theoretical and observational perspective. During this time, samples of forming clusters at higher redshift, termed "protoclusters", once comprised of heterogeneous mix of serendipitous detections or detections arising from dedicated searches around rare galaxy populations, have begun to compete with lower-redshift samples both in terms of numbers and in the homogeneity of the detection methods. Much of this progress has come from optical/near-infrared (NIR) imaging and spectroscopic campaigns designed to target large numbers of typical galaxies to exquisite depth. In this poster talk I will focus on observations from VIMOS on VLT, MOSFIRE/DEIMOS on Keck, and a 50-orbit cycle 29 HST WFC3/G141 grism campaign taken as part of the Charting Cluster Construction with VUDS and ORELSE (C3VO) survey. These observations, combined with novel mapping and search techniques, have uncovered a large number of "protostructures" at 2 < z < 5 that appear to resemble clusters and groups forming in the early universe. I will discuss the development of the methods for finding, confirming, and characterizing proto-clusters and proto-groups in our sample, as well as groups and clusters at intermediate redshifts. Several case studies of spectroscopically-confirmed massive proto-clusters with a diverse set of properties will be presented. I will finally discuss constraints on the relationship between star formation rate, stellar mass, and galaxy density at these redshifts
Results of the Bifacial PV Cells and PV Modules Power Measurement Round Robin Activity of the PV-Enerate Project
Creators: name: Koutsourakis, G.
name: Rauer, M.
name: Schmid, A.
name: Bellenda, G.
name: Betts, T.R.
name: Blakesley, J.C.
name: Bliss, M.
name: Bonilla Castro, J.
name: Bothe, K.
name: Dittmann, S.
name: Lopez-Garcia, J.
name: Herrmann, W.
name: Hinken, D.
name: Kenny, R.P.
name: Molinero, R.R.
name: Pavanello, D.
name: Riechelmann, S.
name: Sträter, H.
name: Vegas, A.
name: Winter, S.
Publisher: name: WIP
Year: 2020
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 877-882
description: Bifacial Photovoltaic (PV) technology is expected to acquire an increased market share of the solar PV industry in the future, due to the ability of bifacial PV modules to collect light from both the front and rear side, increasing the energy yield for a specific available area for a PV system. Accurate measurement procedures for bifacial products result in more accurate energy yield estimates, consequently improving the bankability of bifacial PV technology. This work aims to evaluate the procedures for the measurement of electrical power and bifacial parameters of bifacial solar devices, concerning to their applicability in calibration laboratories and production line environments. An intercomparison for bifacial PV cells and modules is carried out between nine different test laboratories across Europe, as part of the PV-Enerate project. The measurement procedures as described in IEC TS 60904-1-2:2019 are followed among the different test laboratories, to evaluate the applicability of these procedures. Three different types of bifacial PV cells and three different types of bifacial PV modules are measured. The intercomparison involves measurements with systems using both single and double-sided illumination conditions. The uncertainty budgets and systematic differences that these procedures result in between different laboratories are determined and discussed. Specific common mistakes are reported and improvements to the IEC TS 60904-1-2:2019 are proposed as a result of this intercomparison activity.
Identification of a Viable and Robust Process for BJ-BC Solar Cells Interconnection
Creators: name: Timofte, T.
name: Pander, M.
name: Großer, S.
name: Halm, A.
Publisher: name: WIP
Year: 2020
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 853-860
description: Thermomechanical stress induced by interconnection process, which can cause cell bowing, is enhanced for interdigitated back contact ( IBC) solar cells. Efforts are made therefore at laboratory and industrial level to lower cell bowing in cell string, while targeting a reliable interconnection at fast, competitive production flow rates. Two widely available possibilities for interconnection of solar cells are considered in this research work: soldering versus gluing with electrically conductive adhesive (ECA). While soldering with widely used soldering alloys, like Sn60Pb40, is considered as a straight forward, well characterized and understood technique [1], utilization of conductive glues requires a far more specific and intensive analysis. Results from test setups and sample designs will be used in a detailed simulation tool (FEM) environment to obtain predictions for thermomechanical stress initially at cell string level; this will facilitate the qualification process, through a correlation between thermomechanical stress and cell bowing via simulation. Overall this study aims for defined feasible processes for soldering, respectively for gluing of cells, with focus on full cell format, which will ease the implementation of IBC ZEBRA cell in mass production at present competitive throughput level.
Solderable PVD Al Back Contacts for the Module Integration of High-Efficiency c-Si Solar Cells
Creators: name: Nagel, H.
name: Gledhill, S.
name: Kroyer, T.
name: Eberlein, D.
name: Kraft, A.
name: Fischer, T.
name: Hain, A.
name: Wohlfart, P.
name: Glatthaar, M.
name: Glunz, S.W.
Publisher: name: WIP
Year: 2020
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 861-866
description: Several high-efficiency solar cell types, such as tunnel oxide passivated contact and SunPower’s interdigitaded back contact cells, benefit from physical vapour deposited (PVD) Al on the backside. For cell interconnection, the industry prefers to solder tinned Cu connectors to the cells’ metal electrodes, so there is a great need to make the Al solderable. Cost calculations in a previous study have shown that the deposition of only one thin additional metal layer directly after the PVD of Al in the same coating system without interruption of the vacuum is the most cost-effective approach. In this work we introduce sputtered pure Ni as a solderable layer on PVD Al for the connection of c-Si solar cells. Using high-throughput tabber stringers we obtained a very high average normalised 90° interconnector peel force of 3.9 N/mm on our p-type PERC test cells. We also found a very good stability of the manufactured modules in climate tests carried out according to the standard IEC 61215. After double thermal cycling and damp-heat tests, the degradation of the electrical power was < 3 % for an only 100 nm thick pure Ni solderable layer.
Study: Structure of Universe
Creators: name: Brax, Jere
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 490299
subject: Mathematical physics not elsewhere classified

description: Study: Structure of Universe

It can be found from this link:
https://chatgpt.com/share/dae5308c-8e80-4125-9eda-747297ca702f
Green Immersive Education for All
Creators: name: Orero, Pilar
Publisher: name: Zenodo
Year: 2023
Subjects: Media Accessibility, Sustainability, GreenScent, H2020, Accessibility, Media Pollution, Green Digital Accessibility

description: This presentation aims to examine the impact of media pollution and explore the approaches taken by GreenSCENT to address this issue. IRLN2020 Conference at the University of applied Sciences BFI Vienna
Investigation of Failure Modes, Mechanisms and Driving Forces for Electrically Conductive Adhesives as Interconnects in PV Modules
Creators: name: Bosco, N.
name: Springer, M.
Publisher: name: WIP
Year: 2020
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 845-847
description: In this work we describe our current progress into investigating the reliability of ECA interconnects for PV modules. Preliminary thermal cycling experiments demonstrated that both cohesive and adhesive failure of the ECA joint are relevant failure modes that result in an increase of the joints electrical resistance. A thorough viscoelastic characterization of the candidate ECA was conducted to enable accurate numerical modeling of the joint’s response to thermal cycling. Combined with critical and subcritical fracture measurements, the numerical model elucidates that an additional fatigue mechanism exists which can result in fracture well below subcritical debonding threshold values. It is also demonstrated that fracture of the ECA is more sensitive to humidity than temperature and subcritical debonding mechanisms do exist which are again more sensitive to humidity.
A quantum protective mechanism in photosynthesis
Creators: name: Marais, Adriana
name: Sinayskiy, Ilya
name: Petruccione, Francesco
name: van Grondelle, Rienk
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Since the emergence of oxygenic photosynthesis, living systems have developed protective mechanisms against reactive oxygen species. During charge separation in photosynthetic reaction centres, triplet states can react with molecular oxygen generating destructive singlet oxygen. The triplet product yield in bacteria is observed to be reduced by weak magnetic fields. Reaction centres from plants' photosystem II share many features with bacterial reaction centres, including a high-spin iron whose function has remained obscure. To explain observations that the magnetic field effect is reduced by the iron, we propose that its fast-relaxing spin plays a protective role in photosynthesis by generating an effective magnetic field. We consider a simple model of the system, derive an analytical expression for the effective magnetic field and analyse the resulting triplet yield reduction. The protective mechanism is robust for realistic parameter ranges, constituting a clear example of a quantum effect playing a macroscopic role vital for life.
description: 25 pages, 6 figure
Thermomechanical Fatigue of Solder Joint and Interconnect Ribbon: A Comparison between Glass-Glass and Glass-Foil Modules
Creators: name: Lindholm, D.
name: Otnes, G.
name: Fjær, H.
name: Cattaneo, G.
name: Li, H.-Y.
name: Foss, S.E.
Publisher: name: WIP
Year: 2020
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 848-852
description: The purpose of this study was to compare thermomechanical fatigue of glass-glass modules to glass-foil modules, including effects both on the solder bond and the interconnect ribbon. A comparison between glass-glass modules based on POE and EVA as encapsulants were also conducted. A 3D FEM-based model was used to study the fatigue damage to photovoltaic modules exposed to thermal cycling according to the IEC 61215 standard. With respect to thermomechanical fatigue of the interconnect ribbons, model results show that a glass-glass module is more robust than a glass-foil assembly with the same front glass thickness. In the coming years the market share of POE is expected to increase at the cost of EVA, and computed results show that a glass-glass module with POE as encapsulant is more robust with respect to this type of fatigue than EVA. Similar considerations for the solder layer connecting the busbar to the ribbon conclude that there is larger plastic work and damage both for a glass-foil assembly (POE) and a glassglass module (EVA) than a glass-glass assembly based on POE as encapsulant. We conclude that such studies must account for a full-size PV module including fixation and the initial lamination process.
Replicas of the Kondo peak due to electron-vibration interaction in molecular transport properties
Creators: name: Roura-Bas, P.
name: Tosi, L.
name: Aligia, A. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The low temperature properties of single level molecular quantum dots including both, electron-electron and electron-vibration interactions, are theoretically investigated. The calculated differential conductance in the Kondo regime exhibits not only the zero bias anomaly but also side peaks located at bias voltages which coincide with multiples of the energy of vibronic mode $V \sim \hbarΩ/e$. We obtain that the evolution with temperature of the two main satellite conductance peaks follows the corresponding one of the Kondo peak when $\hbarΩ\gg k_B T_K$, being $ T_K$ the Kondo temperature, in agreement with recent transport measurements in molecular junctions. However, we find that this is no longer valid when $ \hbarΩ$ is of the order of a few times $k_B T_K$.
description: 6 pages, 4 figures. Accepted for publication in Physical Review B
Algorithmic independence of initial condition and dynamical law in thermodynamics and causal inference
Creators: name: Janzing, Dominik
name: Chaves, Rafael
name: Schoelkopf, Bernhard
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Statistics Theory (math.ST)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We postulate a principle stating that the initial condition of a physical system is typically algorithmically independent of the dynamical law. We argue that this links thermodynamics and causal inference. On the one hand, it entails behaviour that is similar to the usual arrow of time. On the other hand, it motivates a statistical asymmetry between cause and effect that has recently postulated in the field of causal inference, namely, that the probability distribution P(cause) contains no information about the conditional distribution P(effect|cause) and vice versa, while P(effect) may contain information about P(cause|effect).
description: 7 pages, latex, 2 figures
Correlation of Peel Forces to EVA Degree of Cross Linking and Accelerated Weathering
Creators: name: Schenk, P.
name: Pander, M.
name: Zeller, U.
name: Jäckel, B.
name: Ebert, M.
Publisher: name: WIP
Year: 2020
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 834-839
description: Performing peel tests on the backsheets of PV modules is a common procedure for quality control of laminates. The tests are often used to evaluate delivery batches, but also to test modules in the field. In order to make interpretations of the aging state, it is necessary to evaluate and understand the change in peel strength over time (accelerated aging or in the field) for each interface. Typically, 90° or 180° peel tests are used to characterize laminates. When testing whole PV modules, the 90° peel test is usually used due to the size of the module. In a classical PV module, there are different interfaces at which the peel forces can be measured (glass / EVA, EVA / cell, EVA / backsheet, EVA / ribbons/cross connectors). In addition, the cohesive strength of the EVA/encapsulation material or individual layers of a backsheet can be investigated. In this work the focus is on the EVA-backsheet interface, as this is often the "weakest" link. A more detailed understanding of the individual adhesive forces is important, since the interaction of the individual layers is decisive for the distribution of thermo-mechanical stresses and thus for the aging of the PV module. In this study detailed results of artificial aging are presented focused on the interface EVA/backsheet as a function of degree of cross-linking and stress test. The peeling force changed significantly depending on the applied environmental stress where an increase of the peeling force could be determined especially for low cross-linked EVA samples. This is in contrast to e.g. the EVA / Glass interface where peel forces typically drop significantly.
Chiral algebra of Argyres-Douglas theory from M5 brane
Creators: name: Xie, Dan
name: Yan, Wenbin
name: Yau, Shing-Tung
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study chiral algebras associated with Argyres-Douglas theories engineered from M5 brane. For the theory engineered using 6d $(2,0)$ type $J$ theory on a sphere with a single irregular singularity (without mass parameter), its chiral algebra is the minimal model of W algebra of $J$ type. For the theory engineered using an irregular singularity and a regular full singularity, its chiral algebra is the affine Kac-Moody algebra of $J$ type. We can obtain the Schur index of these theories by computing the vacua character of the corresponding chiral algebra.
description: 5 pages, 1 figure
Current Control of Magnetic Anisotropy via Stress in a Ferromagnetic Metal Waveguide
Creators: name: An, Kyongmo
name: Ma, Xin
name: Pai, Chi-Feng
name: Yang, Jusang
name: Olsson, Kevin S.
name: Erskine, James L.
name: Ralph, Daniel C.
name: Buhrman, Robert A.
name: Li, Xiaoqin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate that in-plane charge current can effectively control the spin precession resonance in an Al2O3/CoFeB/Ta heterostructure. Brillouin Light Scattering (BLS) was used to detect the ferromagnetic resonance field under microwave excitation of spin waves at fixed frequencies. The current control of spin precession resonance originates from modification of the in-plane uniaxial magnetic anisotropy field H_k, which changes symmetrically with respect to the current direction. Numerical simulation suggests that the anisotropic stress introduced by Joule heating plays an important role in controlling H_k. These results provide new insights into current manipulation of magnetic properties and have broad implications for spintronic devices.
Toward Shingling Interconnection with SHJ Solar Cells
Creators: name: Carrière, C.
name: Barth, V.
name: Bettinelli, A.
name: Harrison, S.
name: Derrier, A.
name: Cerasti, L.
name: Galiazzo, M.
Publisher: name: WIP
Year: 2020
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 840-844
description: Increasingly commercialized, the shingle interconnection technology is known today as a reliable method to interconnect solar cells, and which offers several advantages, such as area performance increase, aesthetic improvement, etc. Silicon heterojunction (SHJ) solar cells that allow high energy conversions (>25 %) [1-2] and a high bifaciality ratio have been integrated in this study project. In the framework of the European HighLite project, the purpose of this research is to bring the shingle technology with SHJ solar cell to a higher technological maturity level (TRL 6-7). In this paper, we present the performances and a preliminary reliability assessment of the first shingle modules, manufactured with SHJ solar cells in an industrial environment, with strings manufactured on a newly developed state-of-the-art industrial stringer.
Evidence for an Evolving Cyclotron Line Energy in 4U 1538-522
Creators: name: Hemphill, Paul B.
name: Rothschild, Richard E.
name: Fürst, Felix
name: Grinberg, Victoria
name: Klochkov, Dmitry
name: Kretschmar, Peter
name: Pottschmidt, Katja
name: Staubert, Rüdiger
name: Wilms, Jörn
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We have performed a full time- and luminosity-resolved spectral analysis of the high-mass X-ray binary 4U 1538-522 using the available RXTE, INTEGRAL, and Suzaku data, examining both phase-averaged and pulse-phase-constrained datasets and focusing on the behavior of the cyclotron resonance scattering feature (CRSF). No statistically significant trend between the energy of the CRSF and luminosity is observed in the combined dataset. However, the CRSF energy appears to have increased by ~1.5 keV in the ~8.5 years between the RXTE and Suzaku measurements, with Monte Carlo simulations finding the Suzaku measurement 4.6$σ$ above the RXTE points. Interestingly, the increased Suzaku CRSF energy is much more significant and robust in the pulse-phase-constrained spectra from the peak of the main pulse, suggesting a change that is limited to a single magnetic pole. The 7 years of RXTE measurements do not show any strongly-significant evolution with time on their own. We discuss the significance of the CRSF's behavior with respect to luminosity and time in the context of historical observations of this source as well as recent observational and theoretical work concerning the neutron star accretion column, and suggest some mechanisms by which the observed change over time could occur.
description: 18 pages, 11 figures. Accepted for publication in MNRAS
IPERION HS: Transnational Access for Heritage Science at the high-technology facility SOLEIL - Article
Creators: name: Clara, Albert
Publisher: name: Zenodo
Year: 2023
Subjects: Cultural Heritage
Heritage Science
IPERION HS

description: The IPERION HS project funded by the European Commission under Grant n°871034 offers to European users access to high-level scientific facilities in the field of cultural heritage sciences. Three beamlines of SOLEIL are involved in the project (DIFFABS, DISCO and PUMA), , offering a wide range access to analytical tools using X rays or UV-vis wavelength. These beamlines enable direct analysis of cultural heritage objects and works of art, archaeological artefacts, palaeontological and paleo-environmental specimens, as well as microsamples.
Energy Yield Modelling of 2D and 3D Curved Photovoltaic Modules
Creators: name: Neven-Du Mont, S.
name: Heinrich, M.
name: Pfreundt, A.
name: Kutter, C.
name: Tummalieh, A.
name: Neuhaus, D.-H.
Publisher: name: WIP
Year: 2020
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 822-827
description: This paper presents a detailed model to simulate the energy yield potential of various designs of curved PV modules depending on their bending angle, orientation and location. Furthermore, we analyze the effective irradiance incident on the curved cell pattern surface to investigate the current mismatch between cells and strings that results from the deviating level of irradiance reaching the cells. The results of our simulations show that parallel interconnection of strings produces a higher energy yield for most but not all curved module layouts compared to standard series interconnection with three bypass diodes. The energy yield of curved PV modules can be maximized by using an adapted module design that compensates the inhomogeneous irradiance distribution on the curved module surface.
Effect of simple solutes on the long range dipolar correlations in liquid water
Creators: name: Baul, Upayan
name: Kanth, J. Maruthi Pradeep
name: Anishetty, Ramesh
name: Vemparala, Satyavani
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Intermolecular correlations in liquid water at ambient conditions have generally been characterized through short range density fluctuations described through the atomic pair distribution functions (PDF). Recent numerical and experimental results have suggested that such a description of order or structure in liquid water is incomplete and there exists considerably longer ranged orientational correlations in water that can be studied through dipolar correlations. In this study, using large scale classical, atomistic molecular dynamics (MD) simulations using TIP4P-Ew and TIP3P models of water, we show that salts such as sodium chloride (NaCl), potassium chloride (KCl), caesium chloride (CsCl) and magnesium chloride (MgCl$_2$) have a long range effect on the dipolar correlations, which can not be explained by the notion of structure making and breaking by dissolved ions. The relative effects of cations on dipolar correlations are observed to be consistent with the well-known Hofmeister series. Observed effects are explained through orientational stratification of water molecules around ions, and their long range coupling to the global hydrogen bond network by virtue of the sum rule for water. The observations for single hydrophilic solutes are contrasted with the same for a single methane (CH$_4$) molecule. We observe that even a single small hydrophobe can result in enhancement of long range orientational correlations in liquid water,- contrary to the case of dissolved ions, which have been observed to have a reducing effect. The observations from this study are discussed in the context of hydrophobic effect.
description: 10 pages, 3 figures
Importance of resonance widths in low-energy scattering of weakly-bound light-mass nuclei
Creators: name: Fraser, P. R.
name: Massen-Hane, K.
name: Amos, K.
name: Bray, I.
name: Canton, L.
name: Fossion, R.
name: Kadyrov, A. S.
name: Karataglidis, S.
name: Svenne, J. P.
name: van der Knijff, D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: What effect do particle-emitting resonances have on the scattering cross section? What physical considerations are necessary when modelling these resonances? These questions are important when theoretically describing scattering experiments with radioactive ion beams which investigate the frontiers of the table of nuclides, far from stability. Herein, a novel method is developed that describes resonant nuclear scattering from which centroids and widths in the compound nucleus are obtained when one of the interacting bodies has particle unstable resonances. The method gives cross sections without unphysical behavior that is found if simple Lorentzian forms are used to describe resonant target states. The resultant cross sections differ significantly from those obtained when the states in the coupled channel calculations are taken to have zero width, and compound-system resonances are better matched to observed values.
description: 6 pages, 6 figures
New Astrophysical Reaction Rate for the $^{12}\textrm{C}(α,γ)^{16}\textrm{O}$ Reaction
Creators: name: An, Z. D.
name: Ma, Y. G.
name: Fan, G. T.
name: Li, Y. J.
name: Chen, Z. P.
name: Sun, Y. Y.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A new astrophysical reaction rate for $^{12}$C($α,γ$)$^{16}$O has been evaluated on the basis of a global R-matrix fitting to the available experimental data. The reaction rates of $^{12}$C($α,γ$)$^{16}$O for stellar temperatures between 0.04 $\leq$ $T_9$ $\leq$ 10 are provided in a tabular form and by an analytical fitting expression. At $T_9$ = 0.2, the reaction rate is (7.83 $\pm$ 0.35)$\times10^{15}$ $\rm{cm^3 mol^{-1} s^{-1}}$, where stellar helium burning occurs.
description: 4 figures, 1 table