cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Harnessing joint research programming for circularity and greenhouse gas reduction
Creators: name: Muscat, Abigail
name: Bunthof, Christine
name: NÍ Choncubhair, Órlaith
Publisher: name: Zenodo
Year: 2021
Subjects: joint research programming
research networks
circular agriculture
climate change
climate mitigation

description: The added value of translational research collaboration Alignment of research priorities across national boundaries
 ✓ Synergies between projects
 ✓ Allows for funding of research projects not possible at national level
 ✓ High-level visibility to policy-makers at EU level
 ✓ Projects supported in communication, networking, valorisation of research through ERA-GAS
 consortium and FACCE-JPI
 ✓ Alignment and coordination with international organisations such as Global Research
 Alliance on Greenhouse Gases
description: Presented at the Circularity@WUR conference 6-8 December 2021
Deviations of Results for Energy Yield from Efficiency Rankings of Micro-Inverters
Creators: name: Krauter, S.
name: Bendfeld, J.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Balance of System Components

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 1508-1511
description: To determine and rank the performance of micro-inverters, DC-AC conversion efficiency over the full
range of load conditions (including inherent MPPT accuracy) is usually used as the principal indicator. However, for
the end-user the AC energy yield fed into the grid is the most important value for benchmarking. To compare
efficiency and yield of most micro-inverters available on the world market in 2014, an in- and outdoor test field at the
University of Paderborn have been set up. The inverters have been fed by identical and calibrated crystalline silicon
PV modules of 215 W at STC. To monitor accurately AC power output and yield, each of the micro-inverters has
been equipped with a calibrated precision electricity meter. For micro-inverters that require control units for gridfeeding
this has been purchased also. The test field is equipped with pyranometers in the module plane. The
comparison includes energy yield over almost one year, efficiency-load characteristics, recovery times after low
irradiance levels, cost consideration: While the market is quite new, the range of purchase costs varies considerably
between the models in comparison, sometimes inverter costs are higher than module costs, particularly if an
additional grid-connection or interface device is necessary for operation. The weighted conversion efficiency
according to EU and CEC standards has been measured and compiled. While some inverters have been optimized for
high irradiance levels, they ranked better at the CEC-efficiency, others performed very well also for low irradiance
levels, thus ranking higher at in the EU-efficiency tables. These results deviated from the actual energy yield
measurements, which showed a slightly different ranking. One device showed an extreme deviation of the efficiency
rating from the yield results. An accurate but very slow MPPT algorithm that hardly could follow quickly changing
irradiance conditions has possibly caused this effect. Apparently, some inverters are been optimized to show excellent
EU and CEC efficiency ratings Further investigations are on the way, including temperature effects.
Superconductivity near 80 Kelvin in single crystals of La3Ni2O7 under pressure
Creators: name: Sun, Hualei
name: Huo, Mengwu
name: Hu, Xunwu
name: Li, Jingyuan
name: Han, Yifeng
name: Tang, Lingyun
name: Mao, Zhongquan
name: Yang, Pengtao
name: Wang, Bosen
name: Cheng, Jinguang
name: Yao, Dao-Xin
name: Zhang, Guang-Ming
name: Wang, Meng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: High-transition-temperature (high-T_c) superconductivity in cuprates has been discovered for more than three decades, but the underlying mechanism remains a mystery. Cuprates are the only unconventional superconducting family that host bulk superconductivity with T_cs above the liquid nitrogen boiling temperature at 77 Kelvin. Here we report an observation of superconductivity in single crystals of La3Ni2O7 with a maximum T_c of 80 Kelvin at pressures between 14.0-43.5 gigapascals using high-pressure resistance and mutual inductive magnetic susceptibility measurements. The superconducting phase under high pressure exhibits an orthorhombic structure of Fmmm space group with the 3d_(x^2-y^2 ) and 3d_(z^2 ) orbitals of Ni cations strongly interacting with oxygen 2p orbitals. Our density functional theory calculations suggest the superconductivity emerges coincidently with the metallization of the σ-bonding bands under the Fermi level, consisting of the 3d_(z^2 ) orbitals with the apical oxygens connecting Ni-O bilayers. Thus, our discoveries not only reveal important clues for the high-T_c superconductivity in this Ruddlesden-Popper double-layered perovskite nickelates but also provide a new family of compounds to investigate the high-T_c superconductivity mechanism.
description: 15 pages with extended data
The effect of realistic nuclear charge distributions on isotope shifts and towards the extraction of higher order nuclear radial moments
Creators: name: Papoulia, A.
name: Carlsson, B. G.
name: Ekman, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Background: Atomic spectral lines from different isotopes display a small shift in energy, commonly referred to as the line isotope shift. One of the components of the isotope shift is the field shift, which depends on the extent and the shape of the nuclear charge density distribution. Purpose: To investigate how sensitive field shifts are with respect to variations in the nuclear size and shape and what information of nuclear charge distributions that can be extracted from measured field shifts. Methods: Nuclear properties are obtained from nuclear density functional theory calculations based on the Skyrme-Hartree-Fock-Bogoliubov approach. These results are combined with multiconfiguration Dirac-Hartree-Fock methods to obtain realistic field shifts. Results: Phenomena such as nuclear deformation and variations in the diffuseness of nuclear charge distributions give measurable contributions to the field shifts. Using a novel approach, we demonstrate the possibility to extract new information concerning the nuclear charge densities from the observed field shifts. Conclusions: Combining methods used in atomic and nuclear structure theory gives an improved description of field shifts. Extracting additional nuclear information from measured field shifts is possible in the near future with improved experimental methods.
Investigations into the role of stem cell factor in rat testes
Creators: name: Munsie, Megan.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
"Dust Giant": Extended and Clumpy Star-Formation in a Massive Dusty Galaxy at $z=1.38$
Creators: name: Kokorev, Vasily
name: Jin, Shuowen
name: Gómez-Guijarro, Carlos
name: Magdis, Georgios E.
name: Valentino, Francesco
name: Lee, Minju M.
name: Daddi, Emanuele
name: Liu, Daizhong
name: Sargent, Mark T.
name: Trebitsch, Maxime
name: Weaver, John R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present NOEMA CO (2-1) line and ALMA 870 $μ$m continuum observations of a main-sequence galaxy at $z=1.38$. The galaxy was initially selected as a "gas-giant", based on the gas mass derived from sub-mm continuum (log$(M_{\rm gas}/M_{\odot})=11.20\pm0.20$), however the gas mass derived from CO (2-1) luminosity brings down the gas mass to a value consistent with typical star-forming galaxies at that redshift (log$(M_{\rm gas}/M_{\odot})=10.84\pm0.03$). Despite that the dust-to-stellar mass ratio remains elevated above the scaling relations by a factor of 5. We explore the potential physical picture and consider an underestimated stellar mass and optically thick dust as possible causes. Based on the updated gas-to-stellar mass ratio we rule out the former, and while the latter can contribute to the dust mass overestimate it is still not sufficient to explain the observed physical picture. Instead, possible explanations include enhanced HI reservoirs, CO-dark H$_2$ gas, an unusually high metallicity, or the presence of an optically dark, dusty contaminant. Using the ALMA data at 870 $μ$m coupled with $HST$/ACS imaging, we find extended morphology in dust continuum and clumpy star-formation in rest-frame UV in this galaxy, and a tentative $\sim 10$ kpc dusty arm is found bridging the galaxy center and a clump in F814W image. The galaxy shows levels of dust obscuration similar to the so-called $HST$-dark galaxies at higher redshifts, and would fall into the optically faint/dark $JWST$ color-color selection at $z>2$. It is therefore possible that our object could serve as low-$z$ analog of the $HST$-dark populations. This galaxy serves as a caveat to the gas masses based on the continuum alone, with a larger sample required to unveil the full picture.
description: 9 pages, 5 figures, 1 table. Submitted to A&A Letters
Development of Adhesive and Cohesive Failures in EVA-Backsheet Structures in Environmental Testing
Creators: name: Zhu, J.
name: Montiel-Chicharro, D.
name: Betts, T.
name: Gottschalg, R.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
PV Cells and Modules

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 1539-1542
description: The development of adhesive and cohesive failures at the EVA-backsheet interface under different
damp-heat (DH) testing condition is investigated. Failures are classified as adhesive and cohesive by the surface
roughness of the peeled off backsheet strips. Different DH testing condition leads to different dominating failure
modes. The adhesive failure is the main failure mode at lower testing temperature, which are also the predominant
realistic operating conditions (by time). These failures can be masked by mixed failures which start to dominate at
higher testing temperatures. This is due to different thermal acceleration factors of the two processes. Development of
accelerated environmental testing protocol requires the failure mode analysis to ensure the target failure mode or
degradation mechanism is accelerated and not masked by any other processes. The results indicate that adhesion
testing is difficult to accelerate thermally as this might accelerate one mode which is not the predominant one being
seen in realistic operation.
title: Measurement of the Surface Reflectance of an Acoustic Wave Using Wave Packets Propagating in a Circular Waveguide
Creators: name: Wrzeciono, Piotr
name: Szymański, MIchał
Publisher: name: Publishing House of Poznan University of Technology
Year: 2022

description: Vibrations in Physical Systems, 33(2), 2022218-1 - 2022218-8
Additional file 2 of Young people’s choice and voice concerning sex and relationships: effects of the multicomponent Get Up Speak Out! Programme in Iganga, Uganda
Creators: name: Kakal, Tasneem
name: Nalwadda, Christine
name: van Reeuwijk, Miranda
name: van Veen, Maaike
name: Kusters, Lincie
name: Chatterjee, Ophelia
name: Owekmeno, Charles
name: Kok, Maryse
Publisher: name: figshare
Year: 2022
Subjects: subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Topic guide for focus group discussions (FGDs) with young girls and boys (15-24 years old) with Lusoga translations.
Towards a Network of Faint DA White Dwarfs as High-Precision Spectrophotometric Standards
Creators: name: Narayan, Gautham
name: Axelrod, Tim
name: Holberg, Jay B.
name: Matheson, Thomas
name: Saha, Abhijit
name: Olszewski, Edward W.
name: Claver, Jenna
name: Stubbs, Christopher W.
name: Bohlin, Ralph C.
name: Deustua, Susana
name: Rest, Armin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present initial results from a program aimed at establishing a network of hot DA white dwarfs to serve as spectrophotometric standards for present and future wide-field surveys. These stars span the equatorial zone and are faint enough to be conveniently observed throughout the year with large-aperture telescopes. Spectra of these white dwarfs are analyzed to generate a non-local-thermodynamic-equilibrium (NLTE) model atmosphere normalized to HST colors, including adjustments for wavelength-dependent interstellar extinction. Once established, this standard star network will serve ground-based observatories in both hemispheres as well as space-based instrumentation from the UV to the near IR. We demonstrate the effectiveness of this concept and show how two different approaches to the problem using somewhat different assumptions produce equivalent results. We discuss lessons learned and the resulting corrective actions applied to our program.
description: (15 pages, 7 figures, 5 tables, accepted for publication in ApJ)
Magnetospheric accretion in T Tauri stars
Creators: name: Bouvier, Jérome
Publisher: name: Zenodo
Year: 2022

description: This presentation focuses on the current status of and challenges related to the magnetospheric accretion process in young stars. It also highlights recent efforts to characterize structure and dynamics of the magnetic star-disk interaction region from an observational approach combining various techniques (e.g. spectropolarimetry, interferometry, high-resolution spectroscopy, multi-color photometry) over a wide wavelength range, and the need for complementary modeling tools, including MHD and radiative transfer model, to interpret the observations.
Pure single photons from a trapped atom source
Creators: name: Higginbottom, Daniel B.
name: Slodička, Lukáš
name: Araneda, Gabriel
name: Lachman, Lukáš
name: Filip, Radim
name: Hennrich, Markus
name: Blatt, Rainer
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Single atoms or atom-like emitters are the purest source of on-demand single photons, they are intrinsically incapable of multi-photon emission. To demonstrate this degree of purity we have realized a tunable, on-demand source of single photons using a single ion trapped at the common focus of high numerical aperture lenses. Our trapped-ion source produces single-photon pulses at a rate of 200 kHz with g$^2(0) = (1.9 \pm 0.2) \times 10^{-3}$, without any background subtraction. The corresponding residual background is accounted for exclusively by detector dark counts. We further characterize the performance of our source by measuring the violation of a non-Gaussian state witness and show that its output corresponds to ideal attenuated single photons. Combined with current efforts to enhance collection efficiency from single emitters, our results suggest that single trapped ions are not only ideal stationary qubits for quantum information processing, but promising sources of light for scalable optical quantum networks.
description: 7 pages plus one page supplementary material
Additional file 3 of Young people’s choice and voice concerning sex and relationships: effects of the multicomponent Get Up Speak Out! Programme in Iganga, Uganda
Creators: name: Kakal, Tasneem
name: Nalwadda, Christine
name: van Reeuwijk, Miranda
name: van Veen, Maaike
name: Kusters, Lincie
name: Chatterjee, Ophelia
name: Owekmeno, Charles
name: Kok, Maryse
Publisher: name: figshare
Year: 2022
Subjects: subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3. Description of outcome variables.
Yellowing of PV Backsheets in Accelerated Tests Can Be Used as a Realistic Indication of Possible Field Failures – Fact or Fiction?
Creators: name: Parnham, E.
name: Seaman, A.
name: Whitehead, A.
name: Brennan, W.
name: Ashford, E.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
PV Cells and Modules

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 1528-1531
description: Photovoltaic (PV) modules currently have lifetime guarantees of 25 years or more. Ideally all
components of the modules would be tested in field conditions for at least 25 years, however this is unrealistic, so
accelerated, laboratory based testing is required. When using accelerated testing it is important to ensure the test does
not result in false negatives, leading to the ruling out of good materials, and more importantly, does not give rise to
false positives, which could lead to material failure in the field. A key question to answer is: “Can yellowing be used
as a reliable method to rank materials after accelerated testing and to predict failures in the field?” This paper
compares eight accelerated test conditions combining different temperatures, irradiance and condensation and their
impact on a range of PV backsheet materials with regards to yellowing and loss of mechanical properties. The final
part of this paper will compare unstabilised white polyethylene terephthalate (PET), UV stabilised PET and polyvinyl
fluoride (PVF) films in Xenon weatherometer aging with Florida weathering and backsheet failures reported in the
field. Using these data, looking at colour change and mechanical properties, we are able to increase the confidence in
the predictions being made from correctly conceived accelerated tests.
Survival, structure and function of vas bridge autografts and the effects of bypassing a specific region of the epididymis in the rat
Creators: name: Zheng, Shao Shan.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Heinrich Schnyder, 1897-1974
Creators: name: (:Unkn) Unknown
Publisher: name: Zentralbibliothek Zürich
Year: 1974
Subjects: subject: 920 Biografien, Genealogie, Insignien
subject: 949 Geschichte anderer Teile Europas
subject: Schnyder, Heinrich
subject: Nachruf

description: Enthält: Abdankung für Heinrich Schnyder, 18. Oktober 1974 in der Kirche Zollikon Pfarrer Erich Brenk; Ansprache von Prof. H. U Walder, Zollikon; Gedenkworte von Prof. F. T. Wahlen, a. Bundesrat; Schlussworte von Pfarrer Erich Brenk; Aus Briefen zum Abschied von Heinrich Schnyder
Method to Measure Light Recovery Probability of PV Module Backsheets Enabling 20.2% Module Efficiency with Passivated Emitter and Rear Solar Cells
Creators: name: Köntges, M.
name: Schulte-Huxel, H.
name: Blankemeyer, S.
name: Vogt, M.R.
name: Holst, H.
name: Reineke-Koch, R.
name: Witteck, R.
name: Bothe, K.
name: Brendel, R.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
PV Cells and Modules

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 1532-1538
description: We measure the short circuit current improvement of various commercial backsheets for highly efficient
passivated emitter and rear solar cells (PERC) in photovoltaic (PV) modules. In our test modules an electrically contacted
centre cell is surrounded by 8 cell parts of the same type to simulate the optical neighbourhood of a middle cell in the
centre strings of a standard sized module. In order to reduce the impact of variations in the solar cell performance, we use
the same glass/EVA/cell/EVA stack for all tests. The various backsheets are successively attached to the stack by a thin
film of liquid paraffin. A measurement without backsheet and a “light trap” behind the module stack allows the
calibration of the recovery probability of the cell gaps with nearly zero light recycling. This procedure allows a fast and
precise measurement of the light recovery probability for the cell gaps covered by various backsheets. The light recovery
probability k quantifies how much of the light reflected by the backsheet around the cell is converted into electrical
current by the solar cells in the module. A black backsheet has a recovery probability close to 0%. Typical white
scattering backsheets show a light recovery probability between 45% and 55% for 2 mm cell gaps. Higher recovery
probabilities of about 75% are achieved by using highly reflective structured materials in the cell gaps. Using such
structures in combination with half cells we process a world record standard size (1.5 m x 1 m) PERC PV module with an
energy conversion efficiency of 20.2%.
Additional file 4 of Young people’s choice and voice concerning sex and relationships: effects of the multicomponent Get Up Speak Out! Programme in Iganga, Uganda
Creators: name: Kakal, Tasneem
name: Nalwadda, Christine
name: van Reeuwijk, Miranda
name: van Veen, Maaike
name: Kusters, Lincie
name: Chatterjee, Ophelia
name: Owekmeno, Charles
name: Kok, Maryse
Publisher: name: figshare
Year: 2022
Subjects: subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 4. The Regression Model.
Precise self-calibration of interloper bias in spectroscopic surveys
Creators: name: Peng, Hui
name: Yu, Yu
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Interloper contamination due to line misidentification is an important issue in the future low-resolution spectroscopic surveys. We realize that the algorithm previously used for photometric redshift self-calibration, with minor modifications, can be particularly applicable to calibrate the interloper bias. In order to explore the robustness of the modified self-calibration algorithm, we construct the mock catalogues based on China Space Station Telescope (CSST), taking two main target emission lines, H$α$ and [O III]. The self-calibration algorithm is tested in cases with different interloper fractions at 1 per cent, 5 per cent and 10 per cent. We find that the interloper fraction and mean redshift in each redshift bin can be successfully reconstructed at the level of ~ 0.002 and ~ 0.001(1+z), respectively. We also find the impact of the cosmic magnification can be significant, which is usually ignored in previous works, and therefore propose a convenient and efficient method to eliminate it. Using the elimination method, we show that the calibration accuracy can be effectively recovered with slightly larger uncertainty.
description: 10 pages, 10 figures, accepted for publication in MNRAS
A MPPT Algorithm for Partial Shading Conditions Employing Curve Fitting
Creators: name: Batzelis, E.
name: Kampitsis, G.
name: Papathanassiou, S.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Balance of System Components

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 1502-1507
description: Standard maximum power point tracking (MPPT) algorithms often fail to locate the global maximum of
a photovoltaic (PV) system under partial shading conditions, while other more sophisticated approaches usually involve
extra perturbation of the operating point, which entails undesired output power fluctuation. In this paper, a new MPPT
method is introduced, which continuously detects the shading parameters and estimates all power peaks (MPPs) on the
P-V curve, guaranteeing continuous operation at the global maximum. The algorithm applies least squares (LSQ) curve
fitting (CF) to measurements at the current MPP, utilizing the inherent ripple, without the need for additional
perturbation on the operating point. The calculations performed are entirely mathematical and no extra measurement
equipment is required, such as irradiance or temperature sensors. The method is designed for PV strings illuminated at
two irradiance levels.
Realization and characterization of single-frequency tunable 637.2 nm high-power laser
Creators: name: Wang, Jieying
name: Bai, Jiandong
name: He, Jun
name: Wang, Junmin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report the generation of narrow-linewidth 637.2 nm laser by single-pass sum-frequency generation (SFG) of two infrared lasers at 1560.5 nm and 1076.9 nm in PPMgO:LN crystal. Over 8.75 W of single-frequency continuously tunable 637.2 nm laser is realized, and corresponding conversion efficiency is 38%. We study the behavior of crystals with different poling periods. The detailed experiments show that the output red lasers have very good power stability and beam quality. This high-performance 637.2 nm laser is significant for the realization of high power ultra-violet (UV) 318.6 nm laser via cavity-enhanced frequency doubling. Narrow-linewidth 318.6 nm laser is important for Rydberg excitation of cesium atoms via single-photon transition.
description: 11 pages, 6 figures
Performance Evaluation of Household Li-Ion Battery Storage Systems
Creators: name: Munzke, N.
name: Barry, J.
name: Schwarz, B.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Balance of System Components

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 1516-1521
description: The increase in electricity prices along with a decrease in the price of storage systems has led to a rapid expansion of the PV-battery storage system market in German households. In order to be economically viable, PV-storage systems must fulfil certain performance criteria, and the system control strategies as well as the control speed have a large impact on the overall system performance. While the system control software should be regulated in such a way as to maximize the self-supply ratio as well as the battery lifetime, the control speed and strategy has a direct influence on the self-supply ratio and as a consequence on the overall self-sufficiency. An intelligent control strategy also has added benefits for the grid operator. Several commercially available PV-battery systems have been analyzed with respect to these specific performance criteria. The test results presented here provide a representative picture of the current status of the storage system market and offer useful pointers for future system development.
An introduction to mesic nuclei
Creators: name: Wilkin, Colin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: There is much speculation and a modest amount of evidence that certain mesons might form quasi-bound states with nuclei to produce really exotic states of matter. For this to be a practical possibility, the interaction between the meson and nucleons at low energies must be strong and attractive and the production rates "healthy". The conditions for this are surveyed for the light mesons. How this might lead to quasi-bound states is then discussed in a few typical cases.
description: Presented at the Symposium on Fundamental and Applied Subatomic Physics, Cracow, June 7-12, 2015. To be published in Acta Physica Polonica
Impact of MHD turbulence on the ionic composition of solar and stellar coronae
Creators: name: Lomazzi, Paul
name: Réville, Victor
name: Rouillard, Alexis
name: Petit, Pascal
Publisher: name: Zenodo
Year: 2023
Subjects: Solar Wind, Corona, Composition, MHD, Waves, Simulation, FIP

description: Spectroscopic observations of the solar atmosphere reveal regions of the solar corona that are enriched in the abundance of heavy element with low-first ionisation potential (examples of low ‘FIP’ i.e. with <10 eV are Fe, Mg) relative to photospheric abundances. This enhancement in the abundance of low-FIP elements by a factor of three or four, called the ‘FIP effect’, is still not well understood. Moreover enriched abundances of low-FIP elements are also observed in the slow solar wind, which could give us more insights on its origins. An inverse-FIP effect corresponding to a decreased abundance of low-FIP elements has been measured in the atmosphere of M-type stars. Turbulent mixing of the chromosphere combined with the ponderomotive force caused by Alfvén waves propagating in these atmosphere could give a mechanism that might explain both the FIP and inverse FIP effect. Our goal is to study the role of magnetic topology and turbulence on this fractionation mechanism. In this work we use a MHD code to simulate wind profiles through which Alfvénic perturbations are propagated. We compare simulation outputs from two types of models, full MHD and a Shell model of Alfvén-wave turbulence.
description: {"references": ["Feldman, U. (1992)", "Wood, B. E., & Linsky, J. L. (2010)", "Laming, J.M. (2015)", "Geiss, Johannes. (1998)", "Buchlin, \u00c9., & Velli, M. (2006)"]}
Multi-Model Ensemble for Day Ahead PV Power Forecasting Improvement
Creators: name: Pierro, M.
name: Bucci, F.
name: De Felice, M.
name: Maggioni, E.
name: Moser, D.
name: Perotto, A.
name: Spada, F.
name: Cornaro, C.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Solar Resource and Forecasting

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 1475-1481
description: This work aims to compare several data-driven models using different Numerical Weather Prediction
(NWP) input data and then to build up an outperforming Multi-Model Ensemble (MME) and its prediction intervals.
Statistic, stochastic and hybrid machine-learning algorithms were developed and the NWP data from IFS and WRF
models were used as input. It was found that the same machine learning algorithm differs in performance even if it
make use of NWP data with comparable accuracy. This apparent inconsistency depends on the capability of the machine
learning model to correct the bias error of the input data. The stochastic and the hybrid model using the same WRF
input, as well as the stochastic and the non-linear statistic models using the same IFS input, produce very similar results.
The MME resulting from the averaging of the best data-driven forecasts, improves the accuracy of the outperforming
member of the ensemble, bringing the skill score from 42% to 46%. To reach this performance, the ensemble should
include forecasts with similar accuracy but generated with the higher variety of different data-driven technology and
NWP input.
Assessing Executive Function Using a Computer Game: Computational Modeling of Cognitive Processes
Creators: name: Hagler, Stuart
name: Jimison, Holly B.
name: Pavel, Misha
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Early and reliable detection of cognitive decline is one of the most important challenges of current healthcare. In this project we developed an approach whereby a frequently played computer game can be used to assess a variety of cognitive processes and estimate the results of the pen-and-paper Trail-Making Test (TMT) - known to measure executive function, as well as visual pattern recognition, speed of processing, working memory, and set-switching ability. We developed a computational model of the TMT based on a decomposition of the test into several independent processes, each characterized by a set of parameters that can be estimated from play of a computer game designed to resemble the TMT. An empirical evaluation of the model suggests that it is possible to use the game data to estimate the parameters of the underlying cognitive processes and using the values of the parameters to estimate the TMT performance. Cognitive measures and trends in these measures can be used to identify individuals for further assessment, to provide a mechanism for improving the early detection of neurological problems, and to provide feedback and monitoring for cognitive interventions in the home.
description: 11 pages, 4 figures
Application of Whole Sky Imagers for Data Selection for Radiometer Calibration
Creators: name: Wilbert, S.
name: Nouri, B.
name: Prahl, C.
name: Garcia, G.
name: Ramirez, L.
name: Zarzalejo, L.
name: Valenzuela, R.
name: Ferrera, F.
name: Kozonek, N.
name: Liria, J.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Solar Resource and Forecasting

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 1493-1498
description: The accurate measurement of shortwave solar irradiance is essential for the planning and operation of
photovoltaic plants. The measurement uncertainty caused by the calibration is the most relevant contribution to the
overall uncertainty of radiometers. During the outdoor calibration of radiometers the meteorological conditions have
to be observed carefully and data points collected under unfavorable conditions must be rejected. The rejection
criteria concern the level of the involved irradiances, wind speed and –direction, and also the cloud conditions. The
latter are quantified in terms of the minimum angular distance of clouds from the sun and are usually determined
visually by an observer. A purely manual visual determination of the cloud’s angular distance from the sun is time
consuming and often inaccurate. We developed an algorithm for whole sky imagers (WSIs) that allows the
determination of the minimum angular distance of clouds from the sun and the automatic filtering of the calibration
data. The high importance of the cloud filtering for pyranometer calibration is shown with an exemplary calibration
result for nine pyranometers. The effect of the cloud filtering for pyrheliometer calibration has shown to be negligible
for this example. The filtering method increases the calibration quality and noticeably reduces the personnel effort for
pyranometer calibration.
Additional file 2 of Extracting multiple surfaces from 3D microscopy images in complex biological tissues with the Zellige software tool
Creators: name: Trébeau, Céline
name: de Monvel, Jacques Boutet
name: Altay, Gizem
name: Tinevez, Jean-Yves
name: Etournay, Raphaël
Publisher: name: figshare
Year: 2022
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 2: Figure S1. Zellige implementation. (A) The two main algorithmic steps of Zellige. Upper part: Surface voxel selection step (step 1). Lower part: Surface assembly step (step 2). (B) Determination of the amplitude A(p) of some local maximum p along the z-axis, relative to its two closest local minima p1 and p2. (C,D) Connectivity rules used to connect putative surface voxels together for the construction of orthogonal surface elements (OSEs). These rules are based on a 6-connectivity relationship defined within each orthogonal (xz or yz) section as shown in (C). This relationship is extended to allow the presence of single straight gaps, while being constrained to forbid the occurrence of forking points. The allowed local neighborhood configurations along an OSE are illustrated in (D) in the case of a construction within xz sections. The OSEs are formally defined as the connected components of the graph GOSE defined by these rules within each orthogonal section. (E) Compatibility rules used in the surface assembly step, illustrated here in the case where OSEs have been constructed within xz sections, and assembly proceeds along the y-axis. To validate the addition of a new OSE σ constructed within section y+1 (in blue) to the surface S under construction, whose intersection with section y is shown (surface line ly, in green), two quantities are computed: the overlap R(S,σ) is defined as the number of pixels of σ that share the x coordinate of some pixel of ly. The connectivity C(S,σ) is defined as the fraction of the overlapping pixels of σ that are 6-connected, in their respective yz section, to the corresponding point of ly (according to the 6-connectivity relationship shown in C, middle panel). In the depicted example, there are 2 OSEs (in green) with, for both of them, R(S,σ)=3 and C(S,σ)=3/3=1. The OSE will be added to S if R(S,σ) ≥ R0 and C(S,σ) ≥ C0, where R0 and C0 are tunable thresholds that set the stringency of the matching condition.
The Quality of Satellite-Based Irradiation Data for Operations and Asset Management
Creators: name: Woyte, A.
name: De Brabandere, K.
name: Sarr, B.
name: Richter, M.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Solar Resource and Forecasting

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 1470-1474
description: This paper evaluates solar irradiation data from different satellite-based irradiance data services. For
seven satellite irradiance models, we have evaluated global horizontal irradiation by comparison with data from
meteorological stations for the years 2011 to 2015. The reference data cover measurements from 203 stations in the
Netherlands, Belgium and France. We separately evaluate the systematic error and the random error. Our results
show that the systematic error of most models ranges between 3 and 5% of the measurement. For monthly irradiation,
the random errors can be as low as 2%. The overall normalized root mean square errors of monthly global horizontal
irradiation for the best performing models are of 3 to 6%. For monthly plane-of-array irradiation they range between
5.4 and 8.1%. For daily and hourly irradiation the errors are much higher. We conclude that satellite-based irradiation
can be a reliable and valuable alternative to on-site measurements for monthly and quarterly performance reporting
for small to medium-size PV plants. For fault detection with hourly or daily resolution, on-site sensors are the first
choice. Satellite data are less precise and may be considered as back-up when the sensors fail or appear to be badly
maintained.
Additional file 3 of Extracting multiple surfaces from 3D microscopy images in complex biological tissues with the Zellige software tool
Creators: name: Trébeau, Céline
name: de Monvel, Jacques Boutet
name: Altay, Gizem
name: Tinevez, Jean-Yves
name: Etournay, Raphaël
Publisher: name: figshare
Year: 2022
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 3: Figure S2. Sensitivity analysis of Zellige on the phantom image. (A) Surface voxel selection parameters. (B) Surface assembly parameters. Reference values are indicated by the dashed line.
Optimal Selection of Training Datasets for Solar Nowcasting Models
Creators: name: Sanfilippo, A.
name: Pomares, L.
name: Perez Astudillo, D.
name: Mohandes, N.
name: Bachour, D.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Solar Resource and Forecasting

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 1482-1484
description: Most solar nowcasting approaches use regression analysis to fit a model to historical solar irradiance
data which predicts solar irradiance in near-real time (e.g. intra-hourly). A priori, any amount of historical data can be
used as training material, e.g. months to years. However, evidence suggests the hypothesis that fitting a solar
nowcasting model to a data partition that presents some form of solar irradiance cohesion (e.g. clear vs. cloudy sky)
can help select the appropriate forecasting technique (e.g. linear vs. non-linear) to achieve increased accuracy. In this
paper, we present a systematic study to test this hypothesis by (a) developing different methods to select solar data
partitions to train nowcasting models, (b) assessing the relative performance of each method by evaluating the same
forecasting algorithms with the different data partitions, (c) developing an optimal technique to identify and match
partitions in solar time series data with forecasting algorithm.
Mathematical Parametrisation of Irradiance Transitions Caused by Moving Clouds for PV System Analysis
Creators: name: Lappalainen, K.
name: Valkealahti, S.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Solar Resource and Forecasting

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 1485-1489
description: Irradiance transitions caused by moving clouds can have considerable negative effects on the operation
of photovoltaic (PV) systems. They may lead to failures in maximum power point tracking causing extra losses and to
mismatch power losses due to partial shading. Further, they can cause significant fluctuations in the output power of
PV systems.
This paper presents a method to parametrise irradiance transitions caused by moving clouds based on a
mathematical model of the transitions. Irradiance transitions were parametrised by four variables: shading strength,
shape related parameter b, speed and direction of movement which have no correlation with each other. The
applicability of the parametrisation method in PV system analysis was demonstrated by simulations. The simulation
results show that the developed parametrisation method is suitable for long-term PV system analysis.
Scrape-off layer ion temperature measurements at the divertor target during type III and type I ELMs in MAST measured by RFEA
Creators: name: Elmore, S.
name: Allan, S. Y.
name: Fishpool, G.
name: Kirk, A.
name: Thornton, A. J.
name: Walkden, N. R.
name: Harrison, J. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In future nuclear fusion reactors high heat load events, such as edge-localised modes (ELMs), can potentially damage divertor materials and release impurities into the main plasma, limiting plasma performance. The most difficult to handle are type I ELMs since they carry the largest fraction of energy from the plasma and therefore deposit the largest heat flux at the target and on first wall materials. Knowing the temperature of the ions released from ELM events is important since it determines the potential sputtering they would cause from plasma facing materials. To make measurements of Ti by retarding field energy analyser (RFEA) during type I ELMs a new operational technique has been used to allow faster measurements to be made; this is called the fast swept technique (FST).
description: 20 pages, 12 figures. This is an author-created, un-copyedited version of an article submitted for publication in Plasma Physics and Controlled Fusion. IoP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it
Ray Tracing Modelling of Reflector for Vertical Bifacial Panel
Creators: name: Linde Jakobsen, M.
name: Thorsteinsson, S.
name: Poulsen, P.
name: Melchior Rødder, P.
name: Rødder, K.
Publisher: name: WIP
Year: 2016
Subjects: Concentrator and Space Applications
Concentrator and Space Systems

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 1418-1420
description: Bifacial solar panels have recently become a new attractive building block for PV systems. In this work
we propose a reflector system for a vertical bifacial panel, and use ray tracing modelling to model the performance.
Particularly, we investigate the impact of the reflector volume being filled with a refractive medium, and shows the
refractive medium improves the reflector performance since it directs almost all the light incident on the incoming
plane into the PV panel.
Integration of Spectral Splitting in a CPV-T Receiver Concept
Creators: name: Reinbrech, R.
name: Höller, R.
name: Schneider, H.
Publisher: name: WIP
Year: 2016
Subjects: Concentrator and Space Applications
Concentrator and Space Systems

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 1421-1423
description: The combined use of thermal and electrical power makes it possible to optimize the total energy output
in a CPV-T receiver. By implementing a spectral filter in front of the PV-cell, the part of the solar irradiation that
cannot be converted by the solar cell can be directly transformed into thermal energy and thereby reducing the solar
cell temperature. This paper presents simulation results of a spectral splitting CPV-T receiver concept compared to a
conventional CPV-T receiver, and the influence of different physical parameters on the electrical and thermal output.
Simulations were performed for a Fresnel-type collector for the two locations Wels (Austria) and Lleida (Spain). For
the spectral splitting receiver concept the simulation showed an annual average electrical efficiency of 10.1%, and a
thermal annual average efficiency of 86%. On the other hand, the conventional CPV-T receiver reached a higher
electrical efficiency with 14.7%, but a lower yearly thermal efficiency with 76.1% had to be accepted.
High Performance GaAs Solar Cell Using Heterojunction Emitter and Its Further Improvement by ELO Technique
Creators: name: Kim, S.
name: Hwang, S.-T.
name: Yoon, W.
name: Lee, H.-M.
Publisher: name: WIP
Year: 2016
Subjects: Concentrator and Space Applications
III-V-based Devices for Terrestrial and Space Applications

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 1424-1427
description: We report on two types of single-junction GaAs solar cells that have achieved a record efficiency. We
achieved an NREL-confirmed conversion efficiency of 27.5%@1cm2 in substrate-type GaAs solar cell under
AM1.5G illumination at 1 sun concentration, which exceeds the previously published records for devices on singlecrystalline
substrates. In addition, we also achieved 28.7%@1cm2 of conversion efficiency in ELO-type GaAs solar
cell under AM1.5G illumination, which is very close to the world record 28.8% of Alta Devices. In this study, the ptype
Al0.3Ga0.7As heterojunction emitter with 1.82 eV bandgap was applied to increase Voc and conversion efficiency.
In order to relieve the valence band offset between p-Al0.3Ga0.7As (emitter) and n-GaAs (base) in the p-n junction, the
Eg-graded buffer layer was applied to the p-n junction region. In addition, the thickness and Al composition of the Eggraded
layers were optimized considering band bending in the carrier depletion region. A simulation program
‘AFORS-HET’, designed especially for the solar cells with heterojunction structure, was used to understand the
subtle differences in the band bending of the band diagrams and the performance of the solar cells.
SMC3 as a test to the binary evolution
Creators: name: Ilkiewicz, K.
name: Mikolajewska, J.
name: Belczynski, K.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: SMC 3 is one of the most interesting symbiotic stars. This binary contains a bright K-type giant transferring mass to a massive white dwarf comanion, which makes it is a very promising SN Ia candidate. We discuss the evolutionary status of the system using results of population synthesis code.
description: Proceedings of Physics of Evolved Stars 2015: A Conference Dedicated to the Memory of Olivier Chesneau, Nice, 8-12 June 2015