cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hydrodynamic Simulations of the Interaction between Giant Stars and Planets
Creators: name: Staff, Jan E.
name: De Marco, Orsola
name: Wood, Peter
name: Galaviz, Pablo
name: Passy, Jean-Claude
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the results of hydrodynamic simulations of the interaction between a 10 Jupiter mass planet and a red or asymptotic giant branch stars, both with a zero-age main sequence mass of 3.5 $M_\odot$. Dynamic in-spiral timescales are of the order of few years and a few decades for the red and asymptotic giant branch stars, respectively. The planets will eventually be destroyed at a separation from the core of the giants smaller than the resolution of our simulations, either through evaporation or tidal disruption. As the planets in-spiral, the giant stars' envelopes are somewhat puffed up. Based on relatively long timescales and even considering the fact that further in-spiral should take place before the planets are destroyed, we predict that the merger would be difficult to observe, with only a relatively small, slow brightening. Very little mass is unbound in the process. These conclusions may change if the planet's orbit enhances the star's main pulsation modes. Based on the angular momentum transfer, we also suspect that this star-planet interaction may be unable to lead to large scale outflows via the rotation-mediated dynamo effect of Nordhaus and Blackman. Detectable pollution from the destroyed planets would only result for the lightest, lowest metallicity stars. We furthermore find that in both simulations the planets move through the outer stellar envelopes at Mach-3 to Mach-5, reaching Mach-1 towards the end of the simulations. The gravitational drag force decreases and the in-spiral slows down at the sonic transition, as predicted analytically.
description: Accepted for publication in MNRAS
An investigation into the current asthma knowledge and professional practice of health workers who have attended a three day course on asthma management
Creators: name: Finlayson, Felicity Anne.
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.
PV Module Reliability: How Can We Improve It?
Creators: name: Wohlgemuth, J.H.
name: Kurtz, S.R.
name: Miller, D.C.
name: Bosco, N.S.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1517-1523
description: With the recent, significant expansion of the PV industry, the reliability and safe operation of PV
modules has become even more important. The industry has transited from a time when qualification of the modules
and ISO 9001 for the factory were adequate to the present situation where the owners/installers of large systems
require a specific set of additional proprietary accelerated stress tests along with performing an inspection of the
module factory to assess quality control. The present practice is now being codified by PVQAT and IEC with the
development of Climate Specific Testing and the publication of a guideline for PV Quality Management Systems.
Also in this timeframe, IEC 61215 is undergoing a major revision and the IECRE Conformity Assessment System
will begin certifying PV systems. This paper will describe how this change has come about and what it means in the
near future for both module manufacturing and continued reliability research.
Photoluminescence-Based Current-Voltage Characterisation of Individual Subcells in Multi-Junction Devices
Creators: name: Alonso-Álvarez, D.
name: Lackner, D.
name: Philipps, S.P.
name: Bett, A.W.
name: Ekins-Daukes, N.J.
Publisher: name: WIP
Year: 2015
Subjects: SOLAR CELLS / ASSEMBLIES / MODULES FOR TERRESTRIAL CONCENTRATOR SYSTEMS AND FOR SPACE SOLAR GENERATORS
III-V-based Multi-junction Solar Cells, Concentrator Solar Cells and Space Solar Cells

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1509-1513
description: We demonstrate a photoluminescence based, contactless method to determine the current-voltage
characteristics of the individual subcells in a multi-junction solar cell. The method, furthers known results for single
junction devices and relies upon the reciprocity relation between the absorption and emission properties on a solar
cell. Laser light with a suitable energy is used to excite carriers selectively in one junction and the internal voltages
are deduced from the intensity of the resulting luminescence. The IV curves obtained this way on 1J, 2J and 6J
devices are compared to those obtained using electroluminescence. Good agreement is obtained at high injection
conditions while discrepancies at low injection are attributed to in-plane carrier transport.
PV Energy Yield Nowcasting Combining Sky Imaging with Simulation Models
Creators: name: Anagnostos, D.
name: Schmidt, T.
name: Goverde, H.
name: Kalisch, J.
name: Catthoor, F.
name: Soudris, D.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1552-1555
description: The ongoing growth of renewable energy installations is slowly shifting the energy mix for grids
worldwide. This development is hopeful for a sustainable future, but also imposes additional challenges to grid
regulators. In this context, short term solar irradiation forecasting is becoming relevant for both interconnected and
isolated grids as a way to balance the energy production and demand. The actual energy yield of a photovoltaic
installation though is a function of many parameters and, more importantly, in these short time scales is highly
affected by the dynamics of the modules themselves. This work presents the coupling of high temporal-spatial
resolution sky imaging forecasts with a detailed electro-thermal PV simulation model, suitable for fine-grain temporal
and spatial transient analysis. The final outcome is a forecast of the actual energy yield of the installation for horizons
of typically 15 minutes, with detailed information on occurrences of sudden ramps. The proposed method achieves a
5% improvement in RMS error over persistence, for forecast horizons of about 5 minutes.
International Development of Energy Storage Interoperability Test Protocols for Photovoltaic Integration
Creators: name: Rosewater, D.
name: Johnson, J.
name: Verga, M.
name: Lazzari, R.
name: Messner, C.
name: Bründlinger, R.
name: Kathan, J.
name: Hashimoto, J.
name: Otani, K.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1538-1548
description: As variable, non-dispatchable photovoltaic power continues to displace traditional generation assets,
additional resources are needed to control bulk and local power systems. One highly versatile option for providing
frequency and voltage stability is to incorporate Energy Storage Systems (ESSs) at the distribution-level. Deployment of
these technologies is expected to increase rapidly as time-of-use pricing and self-consumption requirements become
wide-spread and provide greater financial incentives. Japanese, European and American stakeholders are working on the
standardization of interoperability certification protocols for many grid support functions to validate the Distributed
Energy Resource (DER) operations and communications within the power system. Specifically, in this project, Smart
Grid International Research Facility Network (SIRFN) laboratories—Sandia National Laboratories (SNL), Austrian
Institute of Technology (AIT), Ricerca sul Sistema Energetico (RSE), and National Institute of Advanced Industrial
Science and Technology (AIST) Fukushima Renewable Energy Institute (FREA)—are collaborating to create a concise
set of test protocols for evaluating the ESS interoperability and functionality. First, a survey of grid-support standards and
use cases from several countries was completed. Then the grid support functions were condensed to the unique set of ESS
capabilities and organized by function, control signal requirements, and response requirements. From this list, draft
certification protocols were written to enable advanced interoperable ESSs covering this range of capabilities to better
support photovoltaic and renewable energy integration. An overview of the protocol development process along with
preliminary ESS test results for four initial functions (active power, fixed power factor, volt-var, and frequency-watt) is
presented. This work is expected to provide the basis of an international testing standard for ESS grid-support functions
in the future.
Breaking the color-reddening degeneracy in type Ia supernovae
Creators: name: Sasdelli, M.
name: Ishida, E. E. O.
name: Hillebrandt, W.
name: Ashall, C.
name: Mazzali, P. A.
name: Prentice, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A new method to study the intrinsic color and luminosity of type Ia supernovae (SNe Ia) is presented. A metric space built using principal component analysis (PCA) on spectral series SNe Ia between -12.5 and +17.5 days from B maximum is used as a set of predictors. This metric space is built to be insensitive to reddening. Hence, it does not predict the part of color excess due to dust-extinction. At the same time, the rich variability of SN Ia spectra is a good predictor of a large fraction of the intrinsic color variability. Such metric space is a good predictor of the epoch when the maximum in the B-V color curve is reached. Multivariate Partial Least Square (PLS) regression predicts the intrinsic B band light-curve and the intrinsic B-V color curve up to a month after maximum. This allows to study the relation between the light curves of SNe Ia and their spectra. The total-to-selective extinction ratio RV in the host-galaxy of SNe Ia is found, on average, to be consistent with typical Milky-Way values. This analysis shows the importance of collecting spectra to study SNe Ia, even with large sample publicly available. Future automated surveys as LSST will provide a large number of light curves. The analysis shows that observing accompaning spectra for a significative number of SNe will be important even in the case of "normal" SNe Ia.
description: 11 pages, 11 figures
Walking over water, on an arid islet in southern Greece
Creators: name: Germanidou, Sophia
Publisher: name: Zenodo
Year: 2022
Subjects: medieval hydrotechnology, southern Greece, cisterns, islands

description: Water in monasteries and churches was essential for the ritual ceremonies but also for the needs of monks and pilgrims. Therefore, its collection and provision were ensured by cisterns, placed in the closest possible proximity. Moreover, the association of water and religious buildings, usually a cistern and a monastery church, is typically interpreted based on the ‘cleansing’ (practically and metaphysically) properties of water: as a ‘purifying’ agent of the faithful’s spiritual impurities and ‘ablution’ of their sins.
Intertwined Lattice Deformation and Magnetism in Monovacancy Graphene
Creators: name: Padmanabhan, Haricharan
name: Nanda, B. R. K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using density functional calculations we have investigated the local spin moment formation and lattice deformation in graphene when an isolated vacancy is created. We predict two competing equilibrium structures: a ground state planar configuration with a saturated local moment of 1.5 $μ_B$, and a metastable non-planar configuration with a vanishing magnetic moment, at a modest energy expense of ~50 meV. Though non-planarity relieves the lattice of vacancy-induced strain, the planar state is energetically favored due to maximally localized defect states (v$σ$, v$π$). In the planar configuration, charge transfer from itinerant (Dirac) states weakens the spin-polarization of v$π$ yielding a fractional moment, which is aligned parallel to the unpaired v$σ$ electron through Hund's coupling. In the non-planar configuration, the absence of orthogonal symmetry allows interaction between v$σ$ and local d$π$ states, to form a hybridized v$σ^\prime$ state. The non-orthogonality also destabilizes the Hund's coupling, and an antiparallel alignment between v$σ$ and v$π$ lowers the energy. The gradual spin reversal of v$π$ with increasing non-planarity opens up the possibility of an intermediate structure with balanced v$π$ spin population. If such a structure is realized under external perturbations, diluted vacancy concentration may lead to v$σ$ based spin-1/2 paramagnetism.
description: Published version - URL http://link.aps.org/doi/10.1103/PhysRevB.93.165403
Fabrication of Low Concentration Multijunction Solar Cells with Smart Stacking and Areal Current Matching Techniques
Creators: name: Yamada, N.
name: Makita, K.
name: Baba, M.
name: Hirai, D.
name: Sugaya, T.
Publisher: name: WIP
Year: 2015
Subjects: SOLAR CELLS / ASSEMBLIES / MODULES FOR TERRESTRIAL CONCENTRATOR SYSTEMS AND FOR SPACE SOLAR GENERATORS
Terrestrial Concentrator Systems

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1514-1516
description: In this paper, the so-called SMAC (SMart stacking with Areal current matching and Concentration)
module concept is introduced as a cost-effective concentrator photovoltaic architecture for a multijunction (MJ) solar
cell. In the SMAC module, a high-efficiency cell (e.g., a III-V MJ cell) is mechanically stacked on a larger-sized lowcost
cell (e.g., an Si or CIGS cell). The current matching is managed by both the area ratio of the subcells and the
concentrated illumination over the whole cell surface. Simulation results show that the conversion efficiency of the
two-terminal tandem SMAC module (GaAs/InGaAsP, GaAs/CIGS, GaAs/Si) is greater than 30% and that the costeffectiveness
of the SMAC module is improved by the appropriate irradiance distribution. In addition, the results
show that the concentrator optics assist with the current matching of the subcells and reduce the top cell size, thereby
resulting in a higher efficiency and lower cost. A proof-of-concept indoor experiment of the SMAC module
(GaAs/InGaAsP) was performed. The experimental results demonstrate a trend similar to those of the simulation
results.
Modelling and Simulation of PV Power Fluctuations of Large PV Plants from one Single Irradiance Sensor
Creators: name: Marcos, J.
name: De La Parra, I.
name: Muñoz, M.
name: Marroyo, L.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1549-1551
description: The quality and the reliability of the power generated by large gridconnected photovoltaic (PV) plants
are negatively affected by the source characteristic variability. Consequently, system operators have expressed their
concern about the impact of these fluctuations on frequency variations and reserve requirements. This paper proposes
a simple model to simulate the power that would be generated by a fleet of geographically dispersed PV plants based
solely on incident irradiance measurements taken at a single location. The model reliably reproduces critical
parameters for the grid operator, such the reserves required to offset these fluctuations. Our work is based on
experimental one second data collected in the course of 2013 from six PV plants, with a total of 17 MWp, separated
by a distance ranging from 6 to 60 km and dispersed over 1100 km2.
Comparison of Irradiance Forecasts Based on Numerical Weather Prediction Models with different Spatio-Temporal Resolutions
Creators: name: Lorenz, E.
name: Kühnert, J.
name: Heinemann, D.
name: Nielsen, K.P.
name: Remund, J.
name: Müller, S.C.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1524-1537
description: In the framework of the IEA SHC Task 46 “Solar Resource Assessment and Forecasting” we compare
solar global horizontal irradiance forecasts based on numerical weather predictions for a variety of different models.
These include direct model output of several numerical weather prediction models, a rapid update cycle model
assimilating satellite derived cloud products as well as radar data, the multi model ensemble prediction system
GLAMEPS, and two MOS systems. In order to allow for a transparent and comparable analysis of the different
methods we have set up a joint, consistent framework of evaluation. As a basis for the comparisons we have compiled
a common data set of hourly measured solar irradiance values for Denmark, Germany, and Switzerland. Local and
regional forecasts are analysed with respect to different properties. In particular we show that spatial and temporal
averaging effects have a strong impact on the RMSE when comparing solar irradiance forecasts of NWP models with
different output resolutions. Furthermore we investigate a new approach to evaluate the model’s ability to represent
and forecast solar irradiance and cloud variability. The benefit of high resolution mesoscale models in this respect is
demonstrated.
Mirror: A Natural Language Interface for Data Querying, Summarization, and Visualization
Creators: name: Xu, Canwen
name: McAuley, Julian
name: Wang, Penghan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Databases (cs.DB)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: We present Mirror, an open-source platform for data exploration and analysis powered by large language models. Mirror offers an intuitive natural language interface for querying databases, and automatically generates executable SQL commands to retrieve relevant data and summarize it in natural language. In addition, users can preview and manually edit the generated SQL commands to ensure the accuracy of their queries. Mirror also generates visualizations to facilitate understanding of the data. Designed with flexibility and human input in mind, Mirror is suitable for both experienced data analysts and non-technical professionals looking to gain insights from their data.
description: The Web Conference (WWW 2023) Demo
Effective action approach to wave propagation in scalar QED plasmas
Creators: name: Shi, Yuan
name: Fisch, Nathaniel J.
name: Qin, Hong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A relativistic quantum field theory with nontrivial background fields is developed and applied to study waves in plasmas. The effective action of the electromagnetic 4-potential is calculated ab initio from the standard action of scalar QED using path integrals. The resultant effective action is gauge invariant and contains nonlocal interactions, from which gauge bosons acquire masses without breaking the local gauge symmetry. To demonstrate how the general theory can be applied, we study a cold unmagnetized plasma and a cold uniformly magnetized plasma. Using these two examples, we show that all linear waves well-known in classical plasma physics can be recovered from relativistic quantum results when taking the classical limit. In the opposite limit, classical wave dispersion relations are modified substantially. In unmagnetized plasmas, longitudinal waves propagate with nonzero group velocities even when plasmas are cold. In magnetized plasmas, anharmonically spaced Bernstein waves persist even when plasmas are cold. These waves account for cyclotron absorption features observed in spectra of X-ray pulsars. Moreover, cutoff frequencies of the two non-degenerate electromagnetic waves are redshifted by different amounts. These corrections need to be taken into account in order to correctly interpret diagnostic results in laser plasma experiments.
description: 6 figures
Characterization of 1.0 eV GaInNAsSb Solar Cells for Multijunction Applications and the Effect of Annealing
Creators: name: Miyashita, N.
name: Ahsan, N.
name: Okada, Y.
Publisher: name: WIP
Year: 2015
Subjects: SOLAR CELLS / ASSEMBLIES / MODULES FOR TERRESTRIAL CONCENTRATOR SYSTEMS AND FOR SPACE SOLAR GENERATORS
III-V-based Multi-junction Solar Cells, Concentrator Solar Cells and Space Solar Cells

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1461-1465
description: This work focuses on the characterization of 1.0 eV GaInNAsSb solar cells for application to the high
efficiency multijunction solar cells. In the multijunction scheme such as GaInP / GaAs / GaInNAsSb and GaInP /
GaAs / GaInNAsSb / Ge, the thickness of the GaInNAsSb absorber should be thicker than 2 m to ensure optimal
amount of current generation matched to those of the other subcells. In this study, 1.0 eV GaInNAsSb thin films and
solar cells grown by molecular beam epitaxy were investigated. For the purpose of improving the material quality,
post-growth annealing was applied. After the annealing, photoluminescence efficiency together with the carrier
recombination rate was found improved. The spectral responses in external quantum efficiency measurements at
wavelengths longer than 870 nm increased with increasing the GaInNAsSb thicknesses, and reaches close to 90% for
the 2.0 m-thick device. In order to characterize further the multijunction solar cell properties, the 2.0 m device was
mechanically connected with a GaInP / GaAs dual-junction cell in series. The light I-V measurement was carried out
and 25.9% of efficiency was achieved for the mechanically connected triple-junction structure under the AM-1.5
spectrum.
Giant scattering cones in obscured quasars
Creators: name: Obied, Georges
name: Zakamska, Nadia L.
name: Wylezalek, Dominika
name: Liu, Guilin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We analyze Hubble Space Telescope observations of scattering regions in 20 luminous obscured quasars at $0.24
description: 18 pages, 6 figures, 2 tables
Investigation of Thermal Characteristics of Multifunctional Hybrid Photovoltaic Module for Tethered-Solar Power Satellite
Creators: name: Sato, D.
name: Yamada, N.
name: Tanaka, K.
Publisher: name: WIP
Year: 2015
Subjects: SOLAR CELLS / ASSEMBLIES / MODULES FOR TERRESTRIAL CONCENTRATOR SYSTEMS AND FOR SPACE SOLAR GENERATORS
Solar Generators for Space Missions

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1498-1500
description: In this paper, we describe the thermal characterization of a multifunctional hybrid photovoltaic module
for the conversion of sunlight into microwave energy for use in Tethered-solar power satellite. We design a practical
configuration of the hybrid module, which has a sandwich structure. We investigate the thermal characteristics of the
designed hybrid module by performing experiments and numerical analyses, and we evaluate the attainment level for
the design requirements. First, we perform a thermal-vacuum test using a prototype module to obtain a realistic
simulation model with practical thermal resistances between each layer. Using the obtained simulation model, we
then simulate daily temperature variations and the maximum thermal deformation of an antenna surface during
operation. The simulation results show that for this module specification, the design requirements regarding the
module weight and the thermal deformation of the antenna surface are satisfied; however, the module temperature
was still too low when the top and bottom surfaces did not receive sufficient sunlight.
Design and Long-Term Outdoor Monitoring of DSC Module with a Low Level Solar Concentrator
Creators: name: Vildanova, M.F.
name: Kozlov, S.S.
name: Proskuryakov, A.A.
name: Alexeeva, O.V.
name: Ruehlmann, M.
name: Shevaleevskiy, O.I.
Publisher: name: WIP
Year: 2015
Subjects: SOLAR CELLS / ASSEMBLIES / MODULES FOR TERRESTRIAL CONCENTRATOR SYSTEMS AND FOR SPACE SOLAR GENERATORS
III-V-based Multi-junction Solar Cells, Concentrator Solar Cells and Space Solar Cells

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1478-1480
description: We have designed dye-sensitized solar cell (DSC) module using solar concentrator with low concentration
ratio of 5X based on a parabolic trough reflective mirror, concentrating light into a line focus. In this paper we present the
results of long-term outdoor monitoring of the performance characteristics of the module, located on the roof of the Solar
Photovoltaic Laboratory building in Moscow. The outdoor test facility included a novel type of DSC concentrator solar
module and a home-made measuring system for continuous monitoring of generated currents, voltages and electric
power. The data obtained within 2014 year period have shown that the designed DSC module with a stationary low level
concentrator can significantly reduce the cost of PV electricity, as the concentration of the incident light increases the
output power of the PV device up to 4.7 times.
Optical and Electrical Characterization of Large Area LSC Systems
Creators: name: Bernardoni, P.
name: Tonezzer, M.
name: Vincenzi, D.
name: Baricordi, S.
name: Calabrese, G.
name: Guidi, V.
Publisher: name: WIP
Year: 2015
Subjects: SOLAR CELLS / ASSEMBLIES / MODULES FOR TERRESTRIAL CONCENTRATOR SYSTEMS AND FOR SPACE SOLAR GENERATORS
Terrestrial Concentrator Systems

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1492-1493
description: The purpose of this work is to assess the performances of large size LSC devices which closely
represent systems that can be employed in building integrated applications like roofs or windows.
Although the great potentialities of LSC photovoltaic systems, up to now only a few real word applications exist and
most of the scientific work about LSCs concerns only luminescent dyes and small size devices (generally 5cm×5 cm).
The subjects of this study are LSC devices made of dye doped PMMA slabs with an area of 50cm×50cm and a
thickness of 5mm: five different dyes with different colors (violet, gree, yellow, orange, red) have been tested.
Analysis of control power in controlled remote state preparation schemes
Creators: name: Li, Xihan
name: Ghose, Shohini
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We quantify and analyze the controller's power in controlled remote state preparation schemes. Our analysis provides a lower bound on the control power required for controlled remote preparation of arbitrary D-dimensional states. We evaluate several existing controlled remote state preparation protocols and show that some proposed non-maximally entangled channels are not suitable for perfect controlled remote preparation of arbitrary quantum states from the con- troller's point of view. We find that for remotely preparing D-dimensional states, the entropy of each controller should be no less than log_2 D bits. Our criteria are not only useful for evaluating controlled remote state preparation schemes but can also be used for other controlled quantum communication schemes.
description: 7 pages
The Segmental Approximation of Multijunction Solar Cell Photovoltaic Characteristics
Creators: name: Mintairov, M.A.
name: Evstropov, V.V.
name: Mintairov, S.A.
name: Salii, R.A.
name: Shvarts, M.Z.
name: Timoshina, N.K.
name: Kalyuzhnyy, N.A.
Publisher: name: WIP
Year: 2015
Subjects: SOLAR CELLS / ASSEMBLIES / MODULES FOR TERRESTRIAL CONCENTRATOR SYSTEMS AND FOR SPACE SOLAR GENERATORS
III-V-based Multi-junction Solar Cells, Concentrator Solar Cells and Space Solar Cells

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1470-1473
description: Today, the multi-junction solar cells have high theoretical efficiency for both concentrator and space
applications. In this connection accurate modeling of the multi-junction solar cell photovoltaic characteristics is
necessary. The proposed approaches use the advantages which are inherent in the mono-exponential (correspondingly
semi-logarithmic) dependence being contained in the resistance-less characteristics. A method to get resistance-less
light and dark IV curves has been proposed. The method is based on splitting the open circuit voltage – the short
circuit current characteristic. Also, a method for calculating the spreading resistance has been presented. This method
extends the “resistance-less IV curves” approach, so that both methods together allow describing the experimental
photovoltaic characteristics. In this work, an experimental procedure for obtaining the required parameters has been
proposed, and an analysis of GaInP/Ga(In)As/Ge triple-junction solar cell characteristics has been carried out.
Spectral properties of large gradual solar energetic particle events - II -Systematic Q/M-dependence of heavy ion spectral breaks
Creators: name: Desai, M. I.
name: Mason, G. M.
name: Dayeh, M. A.
name: Ebert, R. W.
name: McComas, D. J.
name: Li, G.
name: Cohen, C. M. S.
name: Mewaldt, R. A.
name: Schwadron, N. A.
name: Smith, C. W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Space Physics (physics.space-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We fit the $\sim$0.1-500 MeV/nucleon H-Fe spectra in 46 large SEP events surveyed by Desai et al. (2016) with the double power-law Band function to obtain a normalization constant, low- and high-energy parameters $γ_a$ and $γ_b$; and break energy $E_B$. We also calculate the low-energy power-law spectral slope $γ_1$. We find that: 1) $γ_a$, $γ_1$, and $γ_b$ are species-independent within a given SEP event, and the spectra steepen with increasing energy; 2) $E_B$'s are well ordered by Q/M ratio, and decrease systematically with decreasing Q/M, scaling as (Q/M)$^α$ with $α$ varying between $\sim$0.2-3; 3) $α$ is well correlated with Fe/O at $\sim$0.16-0.23 MeV/nucleon and CME speed; 4) In most events: $α$3; and 5) Seven out of 9 extreme SEP events (associated with faster CMEs and GLEs) are Fe-rich, have $α>$1.4, have flatter spectra at low and high energies with $γ_b$-$γ_a
description: 49 pages, 13 figures, 3 tables
Self-similar solution of the subsonic radiative heat equations using a binary equation of state
Creators: name: Heizler, Shay I.
name: Shussman, Tomer
name: Malka, Elad
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Radiative subsonic heat waves, and their radiation driven shock waves, are important hydro-radiative phenomena. The high pressure, causes hot matter in the rear part of the heat wave to ablate backwards. At the front of the heat wave, this ablation pressure generates a shock wave which propagates ahead of the heat front. Although no self-similar solution of both the ablation and shock regions exists, a solution for the full problem was found in a previous work. Here, we use this model in order to investigate the effect of the equation of state (EOS) on the propagation of radiation driven shocks. We find that using a single ideal gas EOS for both regions, as used in previous works, yields large errors in describing the shock wave. We use the fact that the solution is composed of two different self-similar solutions, one for the ablation region and one for the shock, and apply two ideal gas EOS (binary-EOS), one for each region, by fitting a detailed tabulated EOS to power laws at different regimes. By comparing the semi-analytic solution with a numerical simulation using a full EOS, we find that the semi-analytic solution describes both the heat and the shock regions well.
Clustering of characteristics associated with unplanned pregnancies: the generation R study
Creators: name: Enthoven, Clair
name: El Marroun, Hanan
name: Koopman-Verhoeff, M. Elisabeth
name: Jansen, Wilma
name: Lambregtse-van den Berg, Mijke P.
name: Sondeijker, Frouke
name: Hillegers, Manon H. J.
name: Bijma, Hilmar H.
name: Jansen, Pauline W.
Publisher: name: Erasmus University Rotterdam (EUR)
Year: 2023
Subjects: classificationCode: 420401
subject: Clinical midwifery
classificationCode: 420210
subject: Social epidemiology
classificationCode: 420606
subject: Social determinants of health

description: Unplanned or unintended pregnancies form a major public health concern because they are associated with unfavorable birth outcomes as well as social adversity, stress and depression among parents-to-be. Several risk factors for unplanned pregnancies in women have previously been identified, but studies usually take a unidimensional approach by focusing on only one or few factors, disregarding the possibility that predictors might cluster. Furthermore, data on predictors in men are largely overlooked. The purpose of this study is to determine predictors of unplanned versus planned pregnancy, to determine predictors of ambivalent feelings regarding pregnancy, and to investigate how characteristics of men and women with an unplanned pregnancy cluster together. This study was embedded in Generation R, a multiethnic population-based prospective cohort from fetal life onwards. Pregnancy intention was reported by 7702 women and 5367 partners. Information on demographic, mental, physical, social, and sexual characteristics was obtained. Logistic regression, multinomial regression and cluster analyses were performed to determine characteristics that were associated with an unplanned pregnancy, with ambivalent feelings regarding the unplanned pregnancy and the co-occurrence of characteristics in women and men with unplanned pregnancy. Twenty nine percent of the pregnancies were unplanned. Logistic regression analyses showed that 42 of 44 studied predictors were significantly associated with unplanned pregnancy. The most important predictors were young age, migration background, lower educational level, lower household income, financial difficulties, being single, lower cognitive ability, drug use prior to pregnancy, having multiple sexual partners in the year prior to the pregnancy, younger age of first sexual contact and a history of abortion. Multinomial regression analyses showed that a Turkish or Moroccan background, Islamic religion, little financial opportunities, being married, having ≥3 children, high educational level, more mental health and social problems and older age of first sexual contact were associated with prolonged ambivalent feelings regarding pregnancy. Different combinations of characteristics were observed in the four clusters of women and men with unplanned pregnancy. Many predictors are related with unplanned pregnancies, ambivalent feelings toward the pregnancy, and we identified very heterogeneous groups of women and men with unplanned pregnancies. This calls for heterogeneous measures to prevent unplanned pregnancies.
Temperature-dependent Hysteresis in MAPbI3 Solar Cells
Creators: name: Levine, Igal
name: Nayak, Pabitra K.
name: Wang, Jacob Tse-Wei
name: Sakai, Nobuya
name: Van Reenen, Stephan
name: Brenner, Thomas M.
name: Mukhopadhyay, Sabyasachi
name: Snaith, Henry J.
name: Hodes, Gary
name: Cahen, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Hysteresis in the current-voltage characteristics of hybrid organic-inorganic perovskite-based solar cells is one of the fundamental aspects of these cells that we do not understand well. One possible cause, suggested for the hysteresis, is polarization of the perovskite layer under applied voltage and illumination bias, due to ion migration within the perovskite. To study this problem systemically current-voltage characteristics of both regular (light incident through the electron conducting contact) and so-called inverted (light incident through the hole conducting contact) perovskite cells were studied at different temperatures and scan rates. We explain our results by assuming that the effects of scan rate and temperature on hysteresis are strongly correlated to ion migration within the device, with the rate-determining step being ion migration at/across the interfaces of the perovskite layer with the contact materials. By correlating between the scan rate with the measurement temperature we show that the inverted and regular cells operate in different hysteresis regimes, with different activation energies of 0.28+-0.04 eV and 0.59+-0.09 eV, respectively. We suggest that the differences, observed between the two architectures are due to different rates of ion migration close to the interfaces, and conclude that the diffusion coefficient of migrating ions in the inverted cells is 3 orders of magnitude higher than in the regular cells, leading to different accumulation rates of ions near the interfaces. Analysis of VOC as a function of temperature shows that the main recombination mechanism is trap-assisted (Shockley-Read Hall, SRH) in the space charge region, similar to what is the case for other thin film inorganic solar cells.
description: 47 pages including supplementary information
Optical Properties of Light Diffusers as Targets for Concentrated Solar Beams Characterization
Creators: name: Parretta, A.
name: Tucci, M.
name: Izzi, M.
Publisher: name: WIP
Year: 2015
Subjects: SOLAR CELLS / ASSEMBLIES / MODULES FOR TERRESTRIAL CONCENTRATOR SYSTEMS AND FOR SPACE SOLAR GENERATORS
Terrestrial Concentrator Systems

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1481-1486
description: Diffuse reflectance standards, commonly used in commercial spectrophotometers for calibration
purposes, find application as targets in the “camera-target” method, a simple and effective method to check the
overall performance of a concentrating photovoltaic system. Here, the standard diffuser is irradiated by the focused
solar beam, and the image produced therein is recorded by a CCD camera. The appropriate processing of the image
gives the flux density distribution of the focused beam over the crossed surface. The correct application of the
camera-target method, however, requires the use of diffusers with near Lambertian properties. In this work, we
investigate the optical properties of a series of Labsphere standards of different nominal reflectance, with the purpose
to highlight the relevant differences between real and ideal (Lambertian) diffusers. In particular, we measure the total
hemispherical reflectance, the angular distribution of radiant intensity, and the degree of polarization of the scattered
light as function of wavelength and angle of incidence of an unpolarized laser beam.
Investigation of Coupling Effects through Photoluminescence Spectroscopy
Creators: name: Paraskeva, V.
name: Hadjipanayi, M.
name: Koumparou, I.
name: Armani, N.
name: Trespidi, F.
name: Timò, G.
name: Georghiou, G.E.
Publisher: name: WIP
Year: 2015
Subjects: SOLAR CELLS / ASSEMBLIES / MODULES FOR TERRESTRIAL CONCENTRATOR SYSTEMS AND FOR SPACE SOLAR GENERATORS
III-V-based Multi-junction Solar Cells, Concentrator Solar Cells and Space Solar Cells

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1452-1455
description: Optical interactions between different junctions in a tandem photovoltaic (PV) cell – referred to as
“luminescent coupling”- have been investigated in triple junction devices with different structures using excitationdependent
Photoluminescence spectroscopy. A lattice matched and an upright metamorphic device have been used in
this work. The results show how the radiative emission of the top junction in the tandem changes in the presence of
different light intensity and wavelength. At each light bias intensity, different voltage biases have been applied to the
device in order to demonstrate the impact of voltage on the radiative emission. Differences between radiative
recombination have been detected for different material structures indicating different coupling effects in each device.
Predicting Voc at Ultra-High Solar Concentration Using Computational Numerical Analysis
Creators: name: Stevens, M.
name: Downs, C.
name: Emerson, D.
name: Adler, J.
name: Maclachlan, S.
name: Vandervelde, T.E.
Publisher: name: WIP
Year: 2015
Subjects: SOLAR CELLS / ASSEMBLIES / MODULES FOR TERRESTRIAL CONCENTRATOR SYSTEMS AND FOR SPACE SOLAR GENERATORS
III-V-based Multi-junction Solar Cells, Concentrator Solar Cells and Space Solar Cells

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1474-1477
description: Under ultra-high solar concentration, drastic efficiency drops are attributed to a deteriorating fill factor
and additional thermal effects. The effects of ultra-high solar concentration on other fundamental electrical
properties, such as open-circuit voltage, have yet to be explored in detail. In this work, we discuss our theoretical
examination of semiconductor performance under ultra-high irradiance. Using advanced numerical analysis
techniques and the finite-element library deal.II, we develop a computational model to simultaneously solve the
carrier continuity equations and Poisson’s equation for optically generated charge carriers and the resulting electric
potential as functions of space and time. We use this model to analyze VOC in both dynamic and quasi-steady state
conditions. Ultimately, we characterize the relationship between VOC and increasing solar concentration.
Statistical properties of dwarf novae-type cataclysmic variables: The Outburst Catalogue
Creators: name: Coppejans, Deanne L.
name: Koerding, Elmar G.
name: Knigge, Christian
name: Pretorius, Margaretha L.
name: Woudt, Patrick A.
name: Groot, Paul J.
name: Van Eck, Cameron L.
name: Drake, Andrew J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Outburst Catalogue contains a wide variety of observational properties for 722 dwarf nova-type (DN) cataclysmic variables (CVs) and 309 CVs of other types from the Catalina Real-time Transient Survey. In particular, it includes the apparent outburst and quiescent V-band magnitudes, duty cycles, limits on the recurrence time, upper- and lower-limits on the distance and absolute quiescent magnitudes, colour information, orbital parameters, and X-ray counterparts. These properties were determined by means of a classification script presented in this paper. The DN in the catalogue show a correlation between the outburst duty cycle and the orbital period (and outburst recurrence time), as well as between the quiescent absolute magnitude and the orbital period (and duty cycle). This is the largest sample of dwarf nova properties collected to date. Besides serving as a useful reference for individual systems and a means of selecting objects for targeted studies, it will prove valuable for statistical studies that aim to shed light on the formation and evolution of cataclysmic variables.
description: Accepted for publication in MNRAS
Factors influencing outcome following severe musculo-skeletal traumatic injury
Creators: name: Thomas, Clayton Holwell.
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.
Analysis and Improvement of GaAsP/SiGe Tandem on Si by IQE Data
Creators: name: Conrad, B.
name: Soeriyadi, A.H.
name: Wang, L.
name: Diaz, M.
name: Li, D.
name: Zhao, X.
name: Lochtefeld, A.
name: Gerger, A.
name: Barnett, A.
name: Perez-Wurfl, I.
Publisher: name: WIP
Year: 2015
Subjects: SOLAR CELLS / ASSEMBLIES / MODULES FOR TERRESTRIAL CONCENTRATOR SYSTEMS AND FOR SPACE SOLAR GENERATORS
III-V-based Multi-junction Solar Cells, Concentrator Solar Cells and Space Solar Cells

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1448-1451
description: Potential improvements for GaAsP/SiGe tandems on Si substrates are identified by the use of IQE and
related data to analyse carrier behaviour in the cells. These devices have the potential for 32% efficiency, but until
now advanced device design for high performance has been made challenging by limited knowledge of material
parameters, particularly for uncommon III-V alloy fractions. A model of optical absorption and carrier collection in
the cell, including the influence of heterolayer interfaces and space charge region width, is used to fit experimental
IQE data. The large number of parameters is mitigated by empirical data and limits from literature on more common
alloy fractions. Measurements of IQE after etching window layers provide additional data. Carrier collection
profiles and recombination parameters are found for devices with varying layer thickness, window layer materials,
and material quality. The extracted parameters inform strategic changes to device structure, resulting in higher
predicted currents.
Manipulation of optical-pulse-imprinted memory in a $Λ$ system
Creators: name: Gutiérrez-Cuevas, Rodrigo
name: Eberly, Joseph H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We examine coherent memory manipulation in a $Λ$-type medium, using the second order solution presented by Groves, Clader and Eberly [J. Phys. B: At. Mol. Opt. Phys. 46, 224005 (2013)] as a guide. The analytical solution obtained using the Darboux transformation and a nonlinear superposition principle describes complicated soliton-pulse dynamics which, by an appropriate choice of parameters, can be simplified to a well-defined sequence of pulses interacting with the medium. In this report, this solution is reviewed and put to test by means of a series of numerical simulations, encompassing all the parameter space and adding the effects of homogeneous broadening due to spontaneous emission. We find that even though the decohered results deviate from the analytical prediction they do follow a similar trend that could be used as a guide for future experiments.
description: 8 pages, 5 figures, 1 table