cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Accurately simulating anisotropic thermal conduction on a moving mesh
Creators: name: Kannan, Rahul
name: Springel, Volker
name: Pakmor, Rüdiger
name: Marinacci, Federico
name: Vogelsberger, Mark
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present a novel implementation of an extremum preserving anisotropic diffusion solver for thermal conduction on the unstructured moving Voronoi mesh of the AREPO code. The method relies on splitting the one-sided facet fluxes into normal and oblique components, with the oblique fluxes being limited such that the total flux is both locally conservative and extremum preserving. The approach makes use of harmonic averaging points and a simple, robust interpolation scheme that works well for strong heterogeneous and anisotropic diffusion problems. Moreover, the required discretisation stencil is small. Efficient fully implicit and semi-implicit time integration schemes are also implemented. We perform several numerical tests that evaluate the stability and accuracy of the scheme, including applications such as point explosions with heat conduction and calculations of convective instabilities in conducting plasmas. The new implementation is suitable for studying important astrophysical phenomena, such as the conductive heat transport in galaxy clusters, the evolution of supernova remnants, or the distribution of heat from blackhole-driven jets into the intracluster medium.
description: 17 pages, 16 figures, Submitted to MNRAS
Thermal and Electrical Performance of DI Water Immersed PV Cells under 250X Dish Concentration
Creators: name: Zhu, L.
name: Wang, Y.P.
name: Boehm, R.F.
name: Sun, Y.
name: Halford, C.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
Terrestrial Concentrator Systems

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 118-122
description: By putting solar cells directly inside dielectric liquid, enhanced heat transfer between exposed cell
surfaces and circulating liquid will lead to the remarkable heat dissipation performance. In the present paper, an
innovative receiver based on the DI water immersion was designed and built by using Amonix Back Point-Contact
(BPC) silicon cells. Its real-time temperature distribution was measured as were the I-V curves under a 250 suns
concentration and a two-axis tracking mode. Effects of climate conditions and operational parameters, like solar flux,
flow rate, fins addition and water resistivity on the thermal and electrical performance were comprehensively
investigated. The experimental results show that the average temperature peaks at 58 °C for the bare module while
decreases to 46 °C for the finned module with the DNI 940 W/m2, cooling medium inlet temperature 30 °C and
ambient temperature 16 °C. Fins addition changes the temperature distribution and its uniformity as the flow rate
does. All the data clearly prove the remarkable cooling performance of liquid immersion method. However, the
module performance is stable at first, but then degrades even at a constant resistivity of 5 MΩ·cm. It is assumed that
either the low ion concentration or the electrolytic reaction takes the responsibility for this degradation.
Neutron stars as gravitational wave emitters and detectors
Creators: name: BORIS GONCHAROV
Publisher: name: Monash University
Year: 2020
Subjects: subject: 20105 General Relativity and Gravitational Waves
subject: FOS: Physical sciences
subject: Astrophysics
subject: Instrumentation, Techniques, and Astronomical Observations

description: In this thesis, we explore the duality of neutron stars in our Galaxy as both the sources of gravitational waves, perturbations of space-time propagating with the speed of light, and the nature-built detectors for gravitational waves from coalescing supermassive black holes in far-away galaxies, known as pulsar timing arrays. We develop new methods to search for gravitational waves from neutron stars. We also characterize the pulsar timing array noise that is known to originate from neutron star interiors. Moreover, we find new sources of noise in pulsar timing arrays and we develop new techniques to better understand the data.
The Impact of Ammonia Atmosphere to PV Modules and Test Methods
Creators: name: Althaus, J.
name: Mooslechner, J.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Components for PV Systems
PV Modules

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 4011-4014
description: In the frame of this work ammonia concentrations apparent in typical agricultural buildings with PV
installations were evaluated. Furthermore existing corrosion test methods were examined and checked for their
applicability to simulate stress caused by ammonia atmosphere. Several experiments were conducted to verify that
ammonia atmosphere could have corrosive and erosive effects on PV modules. The effects found were correlated
with defects found on modules from an installation on the rooftop of a pig pen. Beside the visual assessment of test
samples, insulation property changes as well as influence on the output power were evaluated. As a result of the work
a first version of a new international standard was drafted and distributed in the relevant working group of IEC for
comments.
Vortex shells in mesoscopic triangles of amorphous superconducting thin films
Creators: name: Kokubo, N.
name: Miyahara, H.
name: Okayasu, S.
name: Nojima, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Direct observation of vortex states confined in mesoscopic regular triangle dots of amorphous MoGe thin films was made with a scanning superconducting quantum interference device microscope. The observed magnetic images illustrate clearly how vortices are distributed over the triangle dots by forming not only commensurate triangular clusters, but also unique patterns imposed by incommensurability. We discuss the results in terms of vortex shells and construct the packing sequence of vortices in the multiple shell structure.
description: 2 figures, 1 table, 28th International Symposium on Superconductivity(2015)
ENSO in a changing climate simulations
Creators: name: ASHA VIJAYETA
Publisher: name: Monash University
Year: 2020
Subjects: subject: Climate Science
subject: 40104 Climate Change Processes
subject: FOS: Earth and related environmental sciences
subject: Atmospheric Sciences

description: El Niño- Southern Oscillation (ENSO) is a tropical Pacific climatic phenomenon occurring every 2-7 years and having devastating global socioeconomic consequences. This thesis provides insight into understanding General Circulation model (GCM)’s large uncertainties in the ENSO dynamics, statistics and ambiguity in future global warming scenario simulations. We provide evidence that the GCM’s simulate correct ENSO characteristics for the wrong reasons, there are compensating atmospheric and oceanic feedback errors. The GCM’s can be significantly improved and the thesis gives directions as to how. It also explains why strong dynamical changes lead to no overall future ENSO variability but affect ENSO predictability.
Kernel-Based Structural Equation Models for Topology Identification of Directed Networks
Creators: name: Shen, Yanning
name: Baingana, Brian
name: Giannakis, Georgios B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Structural equation models (SEMs) have been widely adopted for inference of causal interactions in complex networks. Recent examples include unveiling topologies of hidden causal networks over which processes such as spreading diseases, or rumors propagate. The appeal of SEMs in these settings stems from their simplicity and tractability, since they typically assume linear dependencies among observable variables. Acknowledging the limitations inherent to adopting linear models, the present paper advocates nonlinear SEMs, which account for (possible) nonlinear dependencies among network nodes. The advocated approach leverages kernels as a powerful encompassing framework for nonlinear modeling, and an efficient estimator with affordable tradeoffs is put forth. Interestingly, pursuit of the novel kernel-based approach yields a convex regularized estimator that promotes edge sparsity, and is amenable to proximal-splitting optimization methods. To this end, solvers with complementary merits are developed by leveraging the alternating direction method of multipliers, and proximal gradient iterations. Experiments conducted on simulated data demonstrate that the novel approach outperforms linear SEMs with respect to edge detection errors. Furthermore, tests on a real gene expression dataset unveil interesting new edges that were not revealed by linear SEMs, which could shed more light on regulatory behavior of human genes.
description: 13 pages
D1.4 Summary of experience on webgis utilization and mobile early warning system for water reuse
Creators: name: Bernardi, Marco
Publisher: name: Zenodo
Year: 2022

description: This deliverable reports on the implementation of a new section in WebGIS Acque di Lombardia, dedicated to water reuse from CAP WWTP, in order to create a platform for improved decision making in water reuse.
Control of Phosphorus Diffusion Using Lydop® Technology for Obtaining Various of Phosphorus Emitters
Creators: name: Bazer-Bachi, B.
name: Papet, P.
name: Semmache, B.
name: Pellegrin, Y.
name: Nichiporuk, O.
name: Le Quang, N.
name: Lemiti, M.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1793-1796
description: We propose to study the emitter formation using Lydop technology, which is low pressure phosphorus diffusion. Various emitters are obtained by varying diffusion parameters, i.e., temperature, drive in time, POCl3/O2 ratio and preoxidation time. This allows to observe the evolution of the emitter dead layer as a function of diffusion parameters and to conclude on the emitter quality. c-Si and mc-Si are then elaborated for different kinds of emitter. POCl3/O2 ratio and preoxidation time are of particularly interest for enhancing emitter performances. While POCl3/O2 ratio decrease enhances the emitter performance, it leads to a series resistance increase. Preoxidation, consisting in the formation of a thermal oxide prior to diffusion, leads to a Joe enhancement, and a 1% absolute increasing of efficiency.
Stirling operators in spatial combinatorics
Creators: name: Finkelshtein, Dmitri
name: Kondratiev, Yuri
name: Lytvynov, Eugene
name: Oliveira, Maria Joao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary 11B73, 46G25, 47B39, 47B93, 81S05, Secondary 05A10, 05A19, 60G55

description: We define and study a spatial (infinite-dimensional) counterpart of Stirling numbers. In classical combinatorics, the Pochhammer symbol $(m)_n$ can be extended from a natural number $m\in\mathbb N$ to the falling factorials $(z)_n=z(z-1)\dotsm (z-n+1)$ of an argument $z$ from $\mathbb F=\mathbb R\text{ or }\mathbb C$, and Stirling numbers of the first and second kinds are the coefficients of the expansions of $(z)_n$ through $z^k$, $k\leq n$ and vice versa. When taking into account spatial positions of elements in a locally compact Polish space $X$, we replace $\mathbb N$ by the space of configurations -- discrete Radon measures $γ=\sum_iδ_{x_i}$ on $X$, where $δ_{x_i}$ is the Dirac measure with mass at $x_i$.The spatial falling factorials $(γ)_n:=\sum_{i_1}\sum_{i_2\ne i_1}\dotsm\sum_{i_n\ne i_1,\dots, i_n\ne i_{n-1}}δ_{(x_{i_1},x_{i_2},\dots,x_{i_n})}$ can be naturally extended to mappings $M^{(1)}(X)\niω\mapsto (ω)_n\in M^{(n)}(X)$, where $M^{(n)}(X)$ denotes the space of $\mathbb F$-valued, symmetric (for $n\ge2$) Radon measures on $X^n$. There is a natural duality between $M^{(n)}(X)$ and the space $\mathcal {CF}^{(n)}(X)$ of $\mathbb F$-valued, symmetric continuous functions on $X^n$ with compact support. The Stirling operators of the first and second kind, $\mathbf{s}(n,k)$ and $\mathbf{S}(n,k)$, are linear operators, acting between spaces $\mathcal {CF}^{(n)}(X)$ and $\mathcal {CF}^{(k)}(X)$ such that their dual operators, acting from $M^{(k)}(X)$ into $M^{(n)}(X)$, satisfy $(ω)_n=\sum_{k=1}^n\mathbf{s}(n,k)^*ω^{\otimes k}$ and $ω^{\otimes n}=\sum_{k=1}^n\mathbf{S}(n,k)^*(ω)_k$, respectively. We derive combinatorial properties of the Stirling operators, present their connections with a generalization of the Poisson point process and with the Wick ordering under the canonical commutation relations.
Co-design of an in-line holographic microscope with enhanced axial resolution: selective filtering digital holography
Creators: name: Verrier, Nicolas
name: Fournier, Corinne
name: Cazier, Anthony
name: Fournel, Thierry
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Common-path digital in-line holography is considered as a valuable 3D diagnostic techniques for a wide range of applications. This configuration is cost effective and relatively immune to variation in the experimental environment. Nevertheless, due to its common-path geometry, the signal to noise-ratio of the acquired hologram is weak as most of the detector (i.e. CCD/CMOS sensor) dynamics is occupied by the reference field signal, whose energy is orders of magnitude higher than the field scattered by the imaged object. As it is intrinsically impossible to modify the ratio of energy of reference to the object field, we propose a co-design approach (Optics/Data Processing) to tackle this issue. The reference to object field ratio is adjusted by adding a 4-f device to a conventional in-line holographic setup, making it possible to reduce the weight of the reference field while keeping the object field almost constant. Theoretical analysis of the Cràmer-Rao lower bounds of the corresponding imaging model illustrate the advantages of this approach. These lower bounds can be asymptotically reached using a parametric inverse problems reconstruction. This implementation results in a 60 % gain in axial localization accuracy (for of 100 $μ$m diameter spherical objects) compared to a classical in-line holography setup .
Imaging and Analysis of Pre-Breakdown Sites in Multicrystalline Silicon Solar Cells
Creators: name: Bothe, K.
name: Hinken, D.
name: Ramspeck, K.
name: Herlufsen, S.
name: Schmidt, J.
name: Brendel, R.
name: Bauer, J.
name: Wagner, J.-M.
name: Zakharov, N.
name: Breitenstein, O.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 918-924
description: We report on studies of the emission of light from industrial multicrystalline silicon solar cells under forward
and reverse bias. Camera-based luminescence and dark lock-in thermography imaging techniques are used to study
the spatial distribution of and energy dissipation at pre-breakdown sites. The pre-breakdown is associated with an increase
in temperature and the emission of visible light. Three different breakdown types are distinguished by investigating
the local luminescence and dark lock-in thermography signal as a function of the reverse bias. Moreover, we show
that specific areas characterized by recombination active fine dendritic lines also give rise to sub-band-gap luminescence.
This luminescence has a broad wavelength distribution with a maximum at around 1550 nm. Studies of multicrystalline
silicon solar cells with different interstitial oxygen concentrations and electron microscopic analysis suggest that this
light emission is directly related to clusters of oxygen.
The origin of jerky dislocation motion in high-entropy alloys
Creators: name: Utt, Daniel
name: Lee, Subin
name: Xing, Yaolong
name: Jeong, Hyejin
name: Stukowski, Alexander
name: Oh, Sang Ho
name: Dehm, Gerhard
name: Albe, Karsten
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Dislocations in single-phase concentrated random alloys, including high- entropy alloys (HEAs), repeatedly encounter pinning during glide, resulting in jerky dislocation motion. While solute-dislocation interaction is well understood in conventional alloys, the origin of individual pinning points in concentrated random alloys is a matter of debate. In this work, we investigate the origin of dislocation pinning in the CoCrFeMnNi HEA. In- situ transmission electron microscopy studies reveal wavy dislocation lines and a jagged glide motion under external loading, even though no segregation or clustering is found around Shockley partial dislocations. Atomistic simulations reproduce the jerky dislocation motion and link the repeated pinning to local fluctuations in the Peierls friction. We demonstrate that the density of high local Peierls friction is proportional to the critical stress required for dislocation glide and the dislocation mobility.
description: Accepted version
How individuals living with myeloma experience an end of life phase during covid-19: An interpretative phenomenological analysis
Creators: name: Francis, Laura
Publisher: name: University of Leicester
Year: 2023
Subjects: Uncategorized

description: Systematic Literature Review Breaking bad news is an occupational hazard for healthcare practitioners. Fourteen papers pertaining to practitioner experience of breaking bad news were identified during a systematic search of the literature and a conceptual overview is provided in this critical interpretative meta synthesis. Analysis elicited four themes: (1) Discomfort, particularly difficult emotional and physical responses to breaking bad news; (2) Relational distress, connected to attachment and identification with patients; (3) Bad clinician, indicating the fear of doing it badly or being bad; and (4) Only human, highlighting a culture of invulnerability where practitioner self-care is deprioritised. Recommendations include reflective practice to support staff, normalisation of difficult experiences around bad news conversations, and inclusion of practitioner needs within breaking bad news protocols. Research Project Interpretative Phenomenological Analysis was used to explore six myeloma patient’s experiences of an end of life phase during the COVID-19 pandemic. Three super ordinate themes were identified: (1) Threat is all around, captured an intensified sense uncertainty and risk from others brought about by the pandemic; (2) My world became smaller, illuminated cumulative losses experienced and the adjustment to shielding including reduced social contact, which for some was experienced as an unexpected benefit; and (3) Outside I’m a swan, reflected the pressure participants felt to maintain prior roles and responsibilities and ‘just get on with it’. Findings emphasised the amplification of pre-existing challenges for those with myeloma as a result of the pandemic and the importance of practitioner understanding of patient values and support systems in order to best provide person-centred care.
Investigation of Unusual Shunting Behaviour Due to Phototransistor Effect in n-Type Aluminium-Alloyed Rear Junction Solar Cells
Creators: name: Sugianto, A.
name: Tjahjono, B.S.
name: Mai, L.
name: Wenham, S.R.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 930-933
description: Over the past few years, the n-type rear junction cell structure with Al-Si alloyed emitter (np+) has been
gaining significant interest in photovoltaic (PV) industry. Such a structure is believed to produce low cost high-efficiency
solar cells due to: 1) the high quality of n-type silicon material compared to p-type silicon; 2) the well-established and low
cost properties of screen-printing method. In this paper, we present work on the abovementioned Al-alloyed rear junction
cell structure in conjunction with plated laser-doping front contacts. Such contacts enable higher cell efficiencies compared
to cells with screen-printed silver front contacts. However, with such a cell structure we discover linear shunts that only
appear under illumination and disappear under dark conditions. Strong evidence of such unusual shunting behaviour is
detected using J-V measurements and dark lock-in thermography (DLIT). As limited explanations have been reported in
literature on such unusual phenomenon, this paper aims to further investigate the presence of the unusual shunting behaviour
and to analyse its influence on the cell performance. In fact, such shunting effects are found to have detrimental impacts on
the cell short-circuit current density (Jsc) and fill factor (FF), which limit the cell efficiency to 12%. By successfully
eliminating the phototransistors through the formation of ohmic contacts, an improvement in the cell efficiency from 12.1%
to 17.3% was achieved.
Understanding the Mechanisms of Hypervelocity Impact Induced Failures on Space Solar Arrays
Creators: name: Schimmerohn, M.
name: Osterholz, J.
name: Rott, M.
name: Gerhard, A.
name: Kuhnhenn, J.
name: Gelhaus, J.
name: Schäfer, F.
name: D'Accolti, G.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
Solar Cells, Modules and PV Systems for Space Applications

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 98-105
description: Besides being one of the most critical satellite components directly linked to mission success, solar
arrays are the component most exposed to the orbit environment. The evolution of space solar arrays to higher power
and voltage ranges involved several failures induced by environmental effects. It was discovered that an electrostatic
discharge on a high-voltage solar array, pre-charged in the space plasma environment, can be sustained by the array
itself, thus resulting in permanent short circuiting of sections. Another environmental effect to be considered in this
context is the hypervelocity impact (HVI) of micrometeoroids and space debris. Sources of HVI induced failures are
the mechanical damage leaving behind perforations and craters, and the formation of free charges at the impact
location. There is evidence that this impact plasma may trigger arcing events and, thus, poses a more significant risk
to solar arrays than the current regard given to HVI effects. This paper provides an overview of solar array failure
effects attributed to the hypervelocity impact of micrometeoroids. Related aspects, including solar array anomalies
and HVI peculiarities, are presented along with the approach of an ESA study, the objective of which is to
experimentally investigate the HVI susceptibility of modern space solar arrays.
Feeling the pull, a study of natural Galactic accelerometers. I: photometry of the delicate stellar stream of the Palomar 5 globular cluster
Creators: name: Ibata, Rodrigo A.
name: Lewis, Geraint F.
name: Martin, Nicolas F.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an analysis of wide-field photometric surveys of the Palomar 5 globular cluster and its stellar stream, based on g- and r-band measures together with narrow-band DDO51 photometry. In this first study, we use the deep (g,r) data to measure the incidence of gaps and peaks along the stream. Examining the star-counts profile of the stream plus contaminating populations, we find no evidence for significant under-densities, and find only a single significant over-density. This is at odds with earlier studies based on matched-filter maps derived from shallower SDSS data if the contaminating population possesses plausible spatial properties. The lack of substantial sub-structure along the stream may be used in future dynamical simulations to examine the incidence of dark matter sub-halos in the Galactic halo. We also present a measurement of the relative distances along the stream which we use to create the deepest wide-field map of this system to date.
description: Accepted for publication in ApJ
Path-integral Monte Carlo study on a droplet of a dipolar Bose-Einstein condensate stabilized by quantum fluctuation
Creators: name: Saito, Hiroki
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Motivated by the recent experiments [H. Kadau et al., Nature (London) 530, 194 (2016); I. Ferrier-Barbut et al., arXiv:1601.03318] and theoretical prediction (F. Wächtler and L. Santos, arXiv:1601.04501), the ground state of a dysprosium Bose-Einstein condensate with strong dipole-dipole interaction is studied using the path-integral Monte Carlo method. It is shown that quantum fluctuation can stabilize the condensate against dipolar collapse.
description: 4 pages, 3 figures
Hot Spot Risk Analysis on Silicon Cell Modules
Creators: name: Wendlandt, S.
name: Drobisch, A.
name: Buseth, T.
name: Krauter, S.
name: Grunow, P.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Components for PV Systems
PV Modules

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 4002-4006
description: The hot spot risk of crystalline silicon modules is the only reliability and safety issue, which is
attributed to cell properties. The increased hot spot risk results from local shunts or deformations of the pn-junction,
which might origin from inhomogeneities in the raw material of the waver or bad cell processing. This paper
presents an overview of existing and new approaches for the hot spot analysis of crystalline silicon cells. Its aim is
to provide a reliable, non-destructive and fast testing-scheme, that can be used for screening of large lots of finished
modules or as a final test in the module production. Infrared-thermographs and dark-current measurements are used
to forecast the probability of a destructive hot spot effect deriving from partial shading in the field. A new hardware
set-up is proposed and its feasibility for an in-line production use is discussed. Finally, the ongoing discussion
between different national reliability standards for the hot spot endurance test is commented.
A Moderated Mediation Model of Social Support on the Association between Coping Strategies and Psycho-Emotional Distress of Healthcare Professionals Caring for Children with Autism
Creators: name: Abu Khait, Abdallah
name: Menger, Austin
name: Mahmoud, Khadejah F.
name: Hamaideh, Shaher H.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Neuroscience
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: Healthcare professionals caring for children with autism spectrum disorder are more likely to be emotionally and psychologically distressed because of the children’s challenging behaviors. This study aimed to investigate whether social support mediates the association between coping strategies and perceived emotional and psychological distress among professionals working with children with autism spectrum disorder. Additionally, this study explored the moderating effect of autism severity on this mediation. The study’s design is cross-sectional, correlational, and predictive. An online, self-administered questionnaire was used to recruit a convenience sample of 180 healthcare professionals working with children with autism spectrum disorder. The results revealed a significant mediation effect of family social support on the relationship between problem-focused coping and psychological distress for those dealing with moderate or severe autism. Likewise, there was also a significant mediation effect of family social support on the relationship between avoidant coping and psychological distress for those dealing with moderate autism. Familial social support can serve as a protective factor for healthcare professionals caring for children with autism against accumulated psychological distress. The direct effect of avoidant coping strategies on emotional distress changes depending on autism severity. The study’s findings are informative to mental health nurses to create more effective coping strategies as problem-solving interventions or develop new coping strategies based on familial social support for those working with children with autism.
Circumstellar Debris and Pollution at White Dwarf Stars
Creators: name: Farihi, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Circumstellar disks of planetary debris are now known or suspected to closely orbit hundreds of white dwarf stars. To date, both data and theory support disks that are entirely contained within the preceding giant stellar radii, and hence must have been produced during the white dwarf phase. This picture is strengthened by the signature of material falling onto the pristine stellar surfaces; disks are always detected together with atmospheric heavy elements. The physical link between this debris and the white dwarf host abundances enables unique insight into the bulk chemistry of extrasolar planetary systems via their remnants. This review summarizes the body of evidence supporting dynamically active planetary systems at a large fraction of all white dwarfs, the remnants of first generation, main-sequence planetary systems, and hence provide insight into initial conditions as well as long-term dynamics and evolution.
description: Published in New Astronomy Reviews
Morphisms of double (quasi-)Poisson algebras and action-angle duality of integrable systems
Creators: name: Fairon, Maxime
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Algebra (math.QA)
subject: Rings and Algebras (math.RA)
subject: Representation Theory (math.RT)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Double (quasi-)Poisson algebras were introduced by Van den Bergh as non-commutative analogues of algebras endowed with a (quasi-)Poisson bracket. In this work, we provide a study of morphisms of double (quasi-)Poisson algebras, which we relate to the $H_0$-Poisson structures of Crawley-Boevey. We prove in particular that the double (quasi-)Poisson algebra structure defined by Van den Bergh for an arbitrary quiver only depends upon the quiver seen as an undirected graph, up to isomorphism. We derive from our results a representation theoretic description of action-angle duality for several classical integrable systems.
description: v2: 51 pages, 3 figures -- Sections 2,3,4 rearranged + intro extended + minor changes. Accepted in Ann. Henri Lebesgue
Investigations on the Pre-Breakdown of Multicrystalline Silicon Solar Cells
Creators: name: Kwapil, W.
name: Kasemann, M.
name: Giesecke, J.
name: Michl, B.
name: Warta, W.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1797-1800
description: The voltage characteristics of the pre-breakdown behavior of industrial multicrystalline silicon solar cells is investigated via dark lock-in thermography (DLIT) and electroluminescence (EL) measurements which yield information about the spatial distribution of the reverse currents and thus of the heat generation. We observe three almost discrete stages of pre-breakdown which can be correlated with surface effects, recombination active regions and regions without significant carrier lifetime reduction, respectively. Our measurements show that in breakdown, the largest currents flow through regions that are not recombination active.
Selfcare Strategies Shown to Be Useful in Daily Life for Adults Diagnosed with Attention Deficit Hyperactivity Disorder – A Systematic Review
Creators: name: Becker, Petra
name: Rask, Mikael
name: Safipour, Jalal
name: Gunnarsson, A. Birgitta
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: Adults with ADHD experience a wide range of difficulties in daily life, and RNs and other healthcare professionals need to know how to support them. The aim was to conduct a systematic review of which selfcare strategies adults with ADHD use and need in order to manage daily life. A literature review based on the PRISMA model was performed, and seven articles with a qualitative design were found. Data were analyzed with thematic analysis. The analysis generated one major theme Enabling ways to manage the consequences of disability in daily life based on three subthemes; Establishing ways of acting to help yourself, Finding encouraging and helping relationships, and Using external aids for managing daily life. Professionals may benefit from knowing about these selfcare strategies when meeting people with ADHD.
A shell model for superfluids in rough-walled nanopores
Creators: name: Yang, Wang
name: Affleck, Ian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recent experiments on the flow of helium-4 fluid through nanopores with tunable pore radius provide a platform for studying the quasi-one-dimensional (quasi-1D) superfluid behaviors. In the extreme 1D limit, the helium atoms are localized by disordered small variations in the substrate potential provided by the pore walls. In the limit of wide pore radius, a solid layer of helium-4 is expected to coat the pore walls smoothing out the substrate potential, and superfluidity is observed in the central region. Building on earlier quantum Monte Carlo results, we propose a scenario for this crossover using a shell model of coupled Luttinger liquids. We find that a small radius pore will always localize the helium atoms, but above a critical radius, a single 1D channel flows through the pore and can be described by Luttinger liquid theory.
description: 11 pages, 2 figures
Suppression of Superconductivity and Nematic Order in Fe$_{1-y}$Se$_{1-x}$S$_x$ (0$\leq$$x$$\leq$1, $y$$\leq$0.1) Crystals by Anion Height Disorder
Creators: name: Wang, Aifeng
name: Milosavljevic, Ana
name: Abeykoon, A. M. Milinda
name: Ivanovski, Valentin
name: Du, Qianheng
name: Baum, Andreas
name: Stavitski, Eli
name: Liu, Yu
name: Lazarevic, Nenad
name: Attenkofer, Klaus
name: Hackl, Rudi
name: Popovic, Zoran
name: Petrovic, Cedomir
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Connections between crystal chemistry and critical temperature $T_c$ have been in the focus of superconductivity, one of the most widely studied phenomena in physics, chemistry and materials science alike. In most Fe-based superconductors, materials chemistry and physics conspire so that $T_c$ correlates with the average anion height above the Fe plane, i. e. with the geometry of the FeAs4 or FeCh4 (Ch = Te, Se, or S) tetrahedron. By synthesizing Fe$_{1-y}$Se$_{1-x}$S$_x$ (0$\leq$$x$$\leq$1, $y$$\leq$0.1), we find that in alloyed crystals $T_c$ is not correlated with the anion height like it is for most other Fe superconductors. Instead, changes in $T_c$($x$) and tetragonal-to-orthorombic (nematic) transition $T_s$($x$) upon cooling are correlated with disorder in Fe vibrations in the direction orthogonal to Fe planes, along the crystallographic c-axis. The disorder stems from the random nature of S substitution, causing deformed Fe(Se,S)4 tetrahedra with different Fe-Se and Fe-S bond distances. Our results provide evidence of $T_c$ and $T_s$ suppression by disorder in anion height. The connection to local crystal chemistry may be exploited in computational prediction of new superconducting materials with Fe/S building blocks.
description: 10 pages, 5 figures
Dirty on the go? Datenqualität in Online-Surveys zwischen PC und Mobilgeräten
Creators: name: Meier, Raffael
name: Gwerder, Nina
Publisher: name: figshare
Year: 2023
Subjects: Sociology not elsewhere classified
Marketing research methodology

description: Unsere Vergleichsanalyse anonymisierter mobiler und nicht mobiler Teilnahmen einer grossen Schweizer Kundenbefragung zeigt: Mobile Antworten fallen bezüglich Datenqualität leicht ab. Straightliner und kürzere Texte sind eine Herausforderung.
Rectified diode response of a multimode quantum cascade laser integrated terahertz transceiver
Creators: name: Dyer, Gregory C.
name: Nordquist, Christopher D.
name: Cich, Michael J.
name: Grine, Albert D.
name: Fuller, Charles T.
name: Reno, John L.
name: Wanke, Michael C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We characterized the DC transport response of a diode embedded in a THz quantum cascade laser as the laser current was changed. The overall response is described by parallel contributions from the rectification of the laser field due to the non-linearity of the diode I-V and from thermally activated transport. Sudden jumps in the diode response when the laser changes from single mode to multi-mode operation, with no corresponding jumps in output power, suggest that the coupling between the diode and laser field depends on the spatial distribution of internal fields. The results demonstrate conclusively that the internal laser field couples directly to the integrated diode.
Sub-barrier pathways to Freeman resonances
Creators: name: Klaiber, Michael
name: Hatsagortsyan, Karen Z.
name: Keitel, Christoph H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The problem of Freeman resonances [R. R. Freeman \textit{et al.}, Phys. Rev. Lett. \textbf{59}, 1092 (1987)] when strong field ionization is enhanced due to the transient population of excited states during the ionization, is revisited. An intuitive model is put forward which explains the mechanism of the intermediate population of excited states during nonadiabatic tunneling ionization via the under-the-barrier recollision and recombination. The theoretical model is based on perturbative strong-field approximation (SFA), where the sub-barrier bound-continuum-bound pathway is described in the second-order SFA, while the further ionization from the excited state by an additional perturbative step. The enhancement of ionization is shown to arise due to the constructive interference of contributions into the excitation amplitudes originating from different laser cycles. The applied model provides an intuitive understanding of the electron dynamics during a Freeman resonance in strong-field ionization, as well as means of enhancing the process and possible applications to related processes.
Tracing symmetries and their breakdown through phases of heterotic (2,2) compactifications
Creators: name: Blaszczyk, Michael
name: Oehlmann, Paul-Konstantin
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We are considering the class of heterotic $\mathcal{N}=(2,2)$ Landau-Ginzburg orbifolds with 9 fields corresponding to $A_1^9$ Gepner models. We classify all of its Abelian discrete quotients and obtain 152 inequivalent models closed under mirror symmetry with $\mathcal{N}=1,2$ and $4$ supersymmetry in 4D. We compute the full massless matter spectrum at the Fermat locus and find a universal relation satisfied by all models. In addition we give prescriptions of how to compute all quantum numbers of the 4D states including their discrete R-symmetries. Using mirror symmetry of rigid geometries we describe orbifold and smooth Calabi-Yau phases as deformations away from the Landau-Ginzburg Fermat locus in two explicit examples. We match the non-Fermat deformations to the 4D Higgs mechanism and study the conservation of R-symmetries. The first example is a $\mathbb{Z}_3$ orbifold on an E$_6$ lattice where the R-symmetry is preserved. Due to a permutation symmetry of blow-up and torus Kähler parameters the R-symmetry stays conserved also smooth Calabi-Yau phase. In the second example the R-symmetry gets broken once we deform to the geometric $\mathbb{Z}_3 \times \mathbb{Z}_{3,\text{free}}$ orbifold regime.
description: 35 pages, 2 figures
Buku Template Penulisan_Wawan Sobari_2023.pdf
Creators: name: Sobari, Wawan
Publisher: name: figshare
Year: 2023
Subjects: Political science not elsewhere classified

description: Buku ini dirancang dengan konsep templat (template) atau format yang dapat diacu untuk penulisan bab metode penelitian dalam proposal atau laporan penelitian bidang Ilmu Politik di perguruan tinggi. Buku berisi panduan sederhana bagi para mahasiswa, calon akademisi, dan ilmuwan politik saat merancang penulisan metode penelitian yang menyelidiki topik Ilmu Politik
Local P-Type Back Surface Fields Via Laser Chemical Processing (LCP): First Experiments
Creators: name: Rodofili, A.
name: Fell, A.
name: Hopman, S.
name: Mayer, K.
name: Willeke, G.P.
name: Kray, D.
name: Glunz, S.W.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1808-1811
description: Laser Chemical Processing (LCP) is a low-damage laser-assisted technique that allows for various applications within solar cell fabrication. N-type emitters have already been produced successfully with LCP and efficiencies of >20% have been achieved. This paper presents first experiments as a proof-of-concept for p-type doping with LCP. General aspects of LCP doping and the requirements for possible doping chemicals are discussed. Through the method of Sheet Resistance Imaging (SRI) it has been found that p-type doping is possible with an
aluminium salt solution. Using this aluminium solution point patterns have been produced on oxidized 10 Ωcm ptype FZ material and through quasi steady state photoconductance decay lifetime measurements (QSSPC) it has been shown that local back surface fields have been formed.
Analysing the determinants of Extended-Spectrum β-Lactamase-producing Escherichia coli and Klebsiella pneumoniae colonisation in the Malawian community setting
Creators: name: Sammarro, Melodie
Publisher: name: Lancaster University
Year: 2023

description: Antimicrobial resistance is a health issue of global concern, involving the human, food and environmental sectors. A prime example of this threat is the rapid evolution of Extended-Spectrum β-Lactamase (ESBL)-producing E. coli and K. pneumoniae[1, 2]. These bacterial species are resistant to most β-lactam antibiotics, and in sub-Saharan Africa, where last resort antimicrobials are not always available, they may render ESBL infections untreatable[3]. Interrupting transmission leading to human gut mucosal colonisation appears like an attractive strategy to prevent infections[3]. However, little is known about risk factors for human gut mucosal colonisation with ESBL-producing Enterobacteriaceae (ESBL-E) in community settings in sub-Saharan Africa. Here, we suggest the importance of within-household transmission in driving ESBL colonisation in the community by determining various risk factors for ESBL-producing E. coli and K. pneumoniae. We also highlight faecal-oral and environmental routes as potential routes of transmission, through the identification of gender and various water, sanitation and hygiene (WASH) components as risk factors. These are determined using spatial and longitudinal approaches on the data collected using the modified spatial design described in this thesis. The findings indicate that transmission is complex in this setting, with individual, household and WASH components appearing as important factors. We suggest that main transmission pathways might differ depending on the bacterial species, therefore interventions might need to vary. We also recommend that interventions aimed at preventing transmission might have the best impact when targeted at the household-level and focused on modifying the WASH behavioural practice and/or improving the WASH infrastructure. Additionally, we show that antibiotic use is important when looking at colonisation with ESBL-producing K. pneumoniae and therefore infection prevention and control measures and antibiotic use and stewardship training could help in preventing transmission. Finally, we report a prevalence of ESBL-producing E. coli of 37% in the community setting, which is comparable to some of the highest prevalences reported in the world[4].