cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Field-free high-frequency exchange-spring spin-torque nano-oscillators
Creators: name: Jiang, Sheng
name: Chung, Sunjae
name: Le, Quang Tuan
name: Wong, Ping Kwan Johnny
name: Zhang, Wen
name: Åkerman, Johan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Spin-torque nano-oscillators (STNOs) are a type of nanoscale microwave auto-oscillators utilizing spin-torque to generate magnetodynamics with great promise for applications in microwaves, magnetic memory, and neuromorphic computing. Here, we report the first demonstration of exchange-spring STNOs, with an exchange-spring ([Co/Pd]-Co) reference layer and a perpendicular ([Co/Ni]) free layer. This magnetic configuration results in high-frequency (>10 GHz) microwave emission at a zero magnetic field and exchange-spring dynamics in the reference layer and the observation of magnetic droplet solitons in the free layer at different current polarities. Our demonstration of bipolar and field-free exchange-spring-based STNOs operating over a 20 GHz frequency range greatly extends the design freedom and functionality of the current STNO technology for energy-efficient high-frequency spintronic and neuromorphic applications.
description: 19 pages, 4 figures
Craseonycteris Hill 1974
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Craseonycteridae
Craseonycteris

description: Craseonycteris Hill, 1974. Bull. Brit. Mus. (Nat. Hist.) Zool., 27:304. TYPE SPECIES: Craseonycteris thonglongyai Hill, 1974.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 155, DOI: 10.5281/zenodo.7353060
Equipment and Procedures for on-Site Testing of PV Plants and BIPV
Creators: name: Tyutyundzhiev, N.
name: Martinez-Moreno, F.
name: Leloux, J.
name: Narvarte, L.
Publisher: name: WIP
Year: 2014
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (from Cells to Systems)
Standardisation as Tool for Innovation and Cost Reduction

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 3499-3503
description: Actual system performance of a PV system can differ from its expected behaviour.. This is the main
reason why the performance of PV systems should be monitored, analyzed and, if needed, improved on. Some of the
current testing procedures relating to the electrical behaviour of PV systems are appropriated for detecting electrical
performance losses, but they are not well-suited to reveal hidden defects in the modules of PV plants and BIPV,
which can lead to future losses. This paper reports on the tests and procedures used to evaluate the performance of PV
systems, and especially on a novel procedure for quick on-site measurements and defect recognition caused by
overheating in PV modules located in operating PV installations.
Proximal extrapolated gradient methods for variational inequalities
Creators: name: Malitsky, Yura
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 47J20, 65K10, 65K15, 65Y20, 90C33

description: The paper concerns with novel first-order methods for monotone variational inequalities. They use a very simple linesearch procedure that takes into account a local information of the operator. Also the methods do not require Lipschitz-continuity of the operator and the linesearch procedure uses only values of the operator. Moreover, when operator is affine our linesearch becomes very simple, namely, it needs only vector-vector multiplication. For all our methods we establish the ergodic convergence rate. Although the proposed methods are very general, sometimes they may show much better performance even for optimization problems. The reason for this is that they often can use larger stepsizes without additional expensive computation.
Improving agnostic searches of Gravitational Waves from Neutron Star instabilities using image filtering
Creators: name: Pierini, Lorenzo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper I present a method to enhance the search sensitivity for long transient Gravitational Waves produced by Neutron Star instabilities. This method consists in a selective image filter, called Triangular Filter, to be applied to data spectrograms. It is shown that thanks to this implementation a 20% gain in sensitivity is achievable.
description: Accepted in Proceedings of the International Astronomical Union, Volume 15 Issue 363
Advanced Spectral Response Measurement with Wide Range Tunable Laser System
Creators: name: Mundus, M.
name: Lill, D.
name: Hohl-Ebinger, J.
name: Warta, W.
Publisher: name: WIP
Year: 2014
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (from Cells to Systems)
Standardisation as Tool for Innovation and Cost Reduction

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 3439-3442
description: The measurement uncertainty in a production line depends on the reference cell uncertainty and has a
high economic impact. Therefore, there is a steady development in calibration setups and procedures aiming for a
further reduction of measurement uncertainty. At the Fraunhofer ISE CalLab PV Cells we develop a new, highly
sophisticated spectral response measurement facility based on wide-range tunable ultrashort laser pulses that will
improve our calibration chain and supply references with lower measurement uncertainty. In this paper we present
our development of this new setup and discuss our approaches to tackle the specific requirements arising from the
special characteristics of ultrashort pulses regarding their applicability in spectral response measurements. We
demonstrate the functionality of our new Laser-DSR setup by showing first results and comparing them to state-ofthe-
art calibration setups. Further, we exemplify the advantages of the gap-free wavelength tuning by a temperature
coefficient measurement of CdTe. Finally, we discuss the expected improvements in measurement uncertainty and
conclude the current status of our setup development.
Craseonycteris thonglongyai Hill 1974
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Craseonycteridae
Craseonycteris
Craseonycteris thonglongyai

description: Craseonycteris thonglongyai Hill, 1974. Bull. Brit. Mus. (Nat. Hist.) Zool., 27:305. TYPE LOCALITY: Thailand, Kanchanaburi, Ban Sai Yoke. DISTRIBUTION: Thailand: known only from a limited area near the type locality. STATUS: U.S. ESA - Endangered; IUCN - Rare. COMMENTS: See Hill and Smith (1981, Mammalian Species, 160).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 155, DOI: 10.5281/zenodo.7353060
description: {"references": ["Smith, J. D., and J. E. Hill. 1981. A new species and subspecies of bat of the Hipposideros bicolor-group from Papua New Guinea and the systematic status of Hipposideros calcaratus and Hipposideros cupidus (Mammalia: Chiroptera: Hipposideridae). Contributions in Science, Natural History Museum of Los Angeles County, 331: 1 - 19."]}
The Bright Symbiotic Mira EF Aquilae
Creators: name: Margon, Bruce
name: Prochaska, J. Xavier
name: Tejos, Nicolas
name: Monroe, TalaWanda
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: An incidental spectrum of the poorly studied long period variable EF Aquilae shows [O III] emission indicative of a symbiotic star. Strong GALEX detections in the UV reinforce this classification, providing overt evidence for the presence of the hot subluminous companion. Recent compilations of the photometric behavior strongly suggest that the cool component is a Mira variable. Thus EF Aql appears to be a member of the rare symbiotic Mira subgroup.
description: Accepted for publication in Publications of the Astronomical Society of the Pacific, Volume 128 (2016)
Spectral Mismatch in Modern Solar Simulators
Creators: name: McIntosh, K.R.
name: Abbott, M.
name: Baker-Finch, S.C.
name: Renukappa, V.
name: Kolberg, D.
name: Spinner, D.M.
Publisher: name: WIP
Year: 2014
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (from Cells to Systems)
Standardisation as Tool for Innovation and Cost Reduction

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 3443-3446
description: There exists a plethora of illumination sources available for solar simulators. These include xenon arc
lamps, halogen lamps, various sets of LEDs, and combinations of the above. In general, the illumination sources that
provide the closest match to the AM1.5g spectrum are more expensive, and therefore a cost-benefit analysis is
required to determine the optimal illumination source for a given factory or laboratory. A comparison of spectral
ratings is helpful in this regard but a more comprehensive way to evaluate illumination sources is to calculate how
their spectral mismatch would affect the accuracy of IV measurements. This paper describes how that calculation is
performed and evaluates four major illumination sources for a wide variety of silicon solar cells, all of which have a
Class A spectral rating. We find that the error in the short-circuit current density due to spectral mismatch varies
between 0.04% and 4.6%, where the smallest error is attained by a modified xenon arc lamp.
Equatorial superrotation in Held & Suarez-like flows with weak equator-to-pole surface temperature gradient
Creators: name: Polichtchouk, Inna
name: Cho, James Y-K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Equatorial superrotation under zonally-symmetric thermal forcing is investigated in a setup close to that of the classic Held & Suarez (1994) setup. In contrast to the behaviour in the classic setup, a transition to equatorial superrotation occurs when the equator-to-pole surface equilibrium entropy gradient is weakened. Two factors contribute to this transition: 1) the reduction of breaking Rossby waves from the mid-latitude that decelerate the equatorial flow and 2) the presence of barotropic instability in the equatorial region, providing stirring to accelerate the equatorial flow. In the latter, Kelvin waves excited by instability near the equator generate and maintain the superrotation. However, the superrotation is unphysically enhanced if simulations are under-resolved and/or over-dissipated.
description: 15 pages, 14 figures, accepted for publication in QJRMS
Multipole expansion for 21cm Intensity Mapping power spectrum: forecasted cosmological parameters estimation for the SKA Observatory
Creators: name: Berti, Maria
name: Spinelli, Marta
name: Viel, Matteo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The measurement of the large scale distribution of neutral hydrogen in the late Universe, obtained with radio telescopes through the hydrogen 21cm line emission, has the potential to become a key cosmological probe in the upcoming years. We explore the constraining power of 21cm intensity mapping observations on the full set of cosmological parameters that describe the $Λ$CDM model. We assume a single-dish survey for the SKA Observatory and simulate the 21cm linear power spectrum monopole and quadrupole within six redshift bins in the range $z=0.25-3$. Forecasted constraints are computed numerically through Markov Chain Monte Carlo techniques. We extend the sampler \texttt{CosmoMC} by implementing the likelihood function for the 21cm power spectrum multipoles. We assess the constraining power of the mock data set alone and combined with Planck 2018 CMB observations. We include a discussion on the impact of extending measurements to non-linear scales in our analysis. We find that 21cm multipoles observations alone are enough to obtain constraints on the cosmological parameters comparable with other probes. Combining the 21cm data set with CMB observations results in significantly reduced errors on all the cosmological parameters. The strongest effect is on $Ω_ch^2$ and $H_0$, for which the error is reduced by almost a factor four. The percentage errors we estimate are $σ_{Ω_ch^2} = 0.25\%$ and $σ_{H_0} = 0.16\%$, to be compared with the Planck only results $σ_{Ω_ch^2} = 0.99\%$ and $σ_{H_0} = 0.79\%$. We conclude that 21cm SKAO observations will provide a competitive cosmological probe, complementary to CMB and, thus, pivotal for gaining statistical significance on the cosmological parameters constraints, allowing a stress test for the current cosmological model.
description: 16 pages, 9 figures
A Prospective Mapping of Environmental Impacts of Large Scale Photovoltaic Ground Mounted Systems Based on the CdTe Technology at 2050 Time Horizon
Creators: name: Marini, C.
name: Blanc, I.
name: Sinha, P.
name: Wade, A.
Publisher: name: WIP
Year: 2014
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (from Cells to Systems)
Quality and Sustainability in Manufacturing and Recycling

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 3394-3398
description: Environmental performances of PV systems are likely to evolve in the future due to significant technological improvements of the systems, to less energy intensive manufacturing processes as well as a shift towards less carbon-intensive energies for electricity mix. In spite of the complexity to estimate these changes with accuracy, projections are available based on scenarios representing different levels of improvements. Based on these scenarios, prospective environmental impacts and electricity production of large scale PV systems are assessed. This paper focuses on GHG performance of large scale photovoltaic ground mounted systems based on the Cadmium Telluride (CdTe) technology. We compare the current (2011-2013) and prospective (at 2050 time horizon) GHG performance of such PV systems under different scenarios accounting for technological improvements, future electricity mixes, and module manufacturing origin. A significant decrease in GHG performance is to be found for the prospective scenarios compared to the current situation ranging from 50 up to 80% depending on the scenarios. Prospective technological improvement seems to induce more uncertainties than prospective electricity mixes involved in manufacturing the modules.
Monte Carlo study of cuprate superconductors in a four-band $d$-$p$ model: Role of orbital degrees of freedom
Creators: name: Watanabe, Hiroshi
name: Shirakawa, Tomonori
name: Seki, Kazuhiro
name: Sakakibara, Hirofumi
name: Kotani, Takao
name: Ikeda, Hiroaki
name: Yunoki, Seiji
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Understanding the complex phase diagram of cuprate superconductors is a long-standing challenging problem. Recent studies have shown that orbital degrees of freedom, both Cu $e_g$ orbitals and O $p$ orbitals, are a key ingredient for a unified understanding of cuprate superconductors, including the material dependence. Here we investigate a four-band $d$-$p$ model derived from the first-principles calculations with the variational Monte Carlo method, which allows us to elucidate competing orders on an equal footing. The obtained results can consistently explain the doping dependence of superconductivity, antiferromagnetic and stripe phases, phase separation in the underdoped region, and also novel magnetism in the heavily-overdoped region. Our four-band $d$-$p$ model with neighbouring intersite interactions is a minimal model to describe the phase diagram comprehensively. The presence of $p$ orbitals is critical to the charge-stripe features, which induce two types of stripe phases with $s'$-wave and $d$-wave bond stripe. On the other hand, the presence of $d_{z^2}$ orbital is indispensable to material dependence of the superconducting transition temperature ($T_{\mathrm{c}}$), and enhances local magnetic moment as a source of novel magnetism in the heavily-overdoped region as well. These findings beyond one-band description could provide a major step toward a full explanation of unconventional normal state and high $T_{\mathrm{c}}$ in cuprate supercondutors.
description: 15 pages, 10 figures
Balantiopteryx Peters 1867
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Emballonuridae
Balantiopteryx

description: Balantiopteryx Peters, 1867. Monatsb. K. Preuss. Akad. Wiss. Berlin, 1867:476. TYPE SPECIES: Balantiopteryx plicata Peters, 1867. COMMENTS: Revised by Hill (1987). A key for this genus was presented in Arroyo-Cabrales and Jones (1988a).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 156, DOI: 10.5281/zenodo.7353060
description: {"references": ["Arroyo-Cabrales, J., and J. K. Jones, Jr. 1988 a. Balantiopteryx plicata. Mammalian Species, 301: 1 - 4."]}
Hubble imaging of V1331 Cygni: Proper motion study of its circumstellar structures
Creators: name: Choudhary, Arpita
name: Stecklum, Bringfried
name: Linz, Hendrik
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The young star V1331 Cyg received previous attention because it is surrounded by an optical, arc-like reflection nebula. V1331 Cyg is commonly considered to be a candidate for an object that has undergone an FU-Ori (FUOR) the outbreak in the past. This in turn could lead to a time-varying appearance of the dusty arcs that may be revealed by multi-epoch imaging. In particular, a radial colour analysis of the dust arcs can then be attempted to check whether radial grain size distribution was modified by a previous FUOR wind. Second-epoch imaging of V1331 Cyg was obtained by us in 2009 using the Hubble Space Telescope (HST). By comparing this to archival HST data from 2000, we studied the time evolution of the circumstellar nebulae. After a point spread function subtraction using model point spread functions, we used customised routines to perform a proper motion analysis. The nebula expansion was first derived by deconvolving and correlating the two-epoch radial brightness profiles. Additional data from other facilities TLS, UKIDSS, SPITZER, and HERSCHEL were also incorporated to improve our understanding of the star in terms of environment, viewing angle, bipolar outflow length, and the FUOR phenomenon. The derived radial colour profiles do not indicate a spatial separation of the dust grain sizes. The HERSCHEL 160 micron images show for the time thermal emission from dust probably residing in the outer arc. By viewing V1331 Cyg almost pole-on, the length of the bipolar outflow exceeds previous estimates by far. The outer arc expansion timescale is consistent with the implantation time of the CO torus, which supports the hypothesis of an outburst that occurred a few thousand years ago. The azimuthal colour variation of the outer arc is probably due to changes of the scattering angle, imposed by a tilt or helical geometry of the dust configuration.
Round Robin Analysis of IV Data for CZ and mc-Si Solar Cells: Comparison of Results from Institute and Industry Partners within FutureFab Project
Creators: name: Popescu, L.M.
name: Schneider, A.
name: Wefringhaus, E.
name: Krümberg, J.
name: Reinke, D.
name: Turek, M.
name: Eiternick, S.
name: Muench, S.
name: Wende, L.
Publisher: name: WIP
Year: 2014
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (from Cells to Systems)
Performance and Reliability of Solar Cells

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 3374-3377
description: The correct and reliable measurement of solar cell parameters is of great interest for all cell producers and
institutes active in the photovoltaic market. In this paper the results of a round robin exercise on IV measurements of
totally 48 standard (mono and multi-crystalline Si) and selective emitter (mono and multi-crystalline Si) solar cells across
five partners of the FutureFab project are presented. The measurement results are analyzed using a statistics program
(SAS JMP Pro 9).
The comprehensive study firstly revealed systematic measurement errors: In some cases obvious mis-measurements due
to poor temperature control and imperfect temperature correction factors occurred. After exclusion of these erroneous
results, typical values for standard deviation of the participant´s measurements and for differences between the
participant´s mean results for IV measurements on the same cell were calculated. Gauge R&R analyses showed that the
portion of variability due to multiple measurements (repeatability) and due to different IV set-ups (reproducibility) is too
high to allow for detection of cell-to-cell differences as given in the Round Robin. The comparability of the IV
measurement results between different IV set-ups is low (even if all set-ups are calibrated using the same reference cell).
IV measurements should only be compared when carried out on the same IV set-up.
Soldering MWT Solar Cells into Solar Modules
Creators: name: Guneser, M.T.
name: Govaerts, J.
name: Van Der Heide, A.
name: Dewallef, S.
name: Borgers, T.
name: Gordon, I.
name: Poortmans, J.
Publisher: name: WIP
Year: 2014
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (from Cells to Systems)
Quality and Sustainability in Manufacturing and Recycling

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 3390-3393
description: In this paper, we investigate an approach for the interconnection and module integration of MWT cells,
based on stringing technology. The main difference with standard technology for stringing 2-side contacted cells is
the additional layup of a woven glass fibre insulator to avoid shunting due to the stringing process. Compared to the
integrated backsheet approach, we believe a stringing approach can have a much faster industrial take-up as it is
much closer (in terms of process as well as equipment and materials, and therefore also costs) to the current widely
adopted method for manufacturing PV modules (based on stringing and lamination of 2-side contacted cells).
Next to this technology development and demonstration, we also want to indicate in this paper how inspection using
electroluminescence may clearly help understanding and improving such development, by early on determining,
understanding and pinpointing failures in a non-destructive way.
OntoCommons D5.1 - Report on requirements on ontology tools and ontologies and criteria for selection of further cases
Creators: name: Fensel, Anna
name: Simsek, Umutcan
Publisher: name: Zenodo
Year: 2021
Subjects: ontologies
demonstrators
data documentation
standardisation

description: This report provides requirements on ontology tools and ontologies and criteria for selection of further cases. Specifically, we describe the state of the art of the initial demonstrators, addressing the relevant to the project needs, state of the affairs in the usage of ontologies and ontology tools, and the state of the FAIRness for the data in the demonstrators. We also describe how we collected the initial demonstrator descriptions and requirements, namely with surveys and through a dedicated demonstrator workshop. Further, we list the criteria for the selection of further demonstrators for the projects, and outline our future work.
Late time accelerated scaling attractors in DGP (Dvali-Gabadadze-Porrati) braneworld
Creators: name: Dutta, Jibitesh
name: Khyllep, Wompherdeiki
name: Syiemlieh, Erickson
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the evolution of late universe, the main source of matter are Dark energy and Dark matter. They are indirectly detected only through their gravitational manifestations. So the possibility of interaction with each other without violating observational restrictions is not ruled out. With this motivation, we investigate the dynamics of DGP braneworld where source of dark energy is a scalar field and it interacts with matter source. Since observation favours phantom case more, we have also studied the dynamics of interacting phantom scalar field. In non interacting DGP braneworld there are no late time accelerated scaling attractors and hence cannot alleviate Coincidence problem. In this paper, we shall show that it is possible to get late time accelerated scaling solutions. The phase space is studied by taking two categories of potentials (Exponential and Non exponential functions). The stability of critical points are examined by taking two specific interactions. The first interaction gives late time accelerated scaling solution for phantom field only under exponential potential, while for second interaction we do not get any scaling solution. Furthermore, we have shown that this scaling solution is also classically stable.
description: 18 pages, 28 figs. Comments wellcome
Balantiopteryx infusca
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Emballonuridae
Balantiopteryx
Balantiopteryx infusca

description: Balantiopteryx infusca (Thomas, 1897). Ann. Mag. Nat. Hist., ser. 6, 20:546. TYPE LOCALITY: Ecuador, Esmeraldas, Cachabi. DISTRIBUTION: W Ecuador. COMMENTS: See Hill (1987) for information on this species. See Arroyo-Cabrales and Jones (1988b, Mammalian Species, 313).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 156, DOI: 10.5281/zenodo.7353060
description: {"references": ["Arroyo-Cabrales, J., and J. K. Jones, Jr. 1988 b. Balantiopteryx io and Balantiopteryx infusca. Mammalian Species, 313: 1 - 3."]}
Waste Treatment Generated during Silicon Based Solar Cells Production Towering a Complete LCA Processing
Creators: name: González-Díaz, B.
name: Segredo-Morales, E.
name: Linares, A.
name: Montes, C.
name: Llarena, E.
name: Jarabo, F.
name: González-Pérez, S.
name: Hernandez-Rodriguez, C.
name: Guerrero-Lemus, R.
name: Friend, M.
name: Cendagorta, M.
Publisher: name: WIP
Year: 2014
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (from Cells to Systems)
Quality and Sustainability in Manufacturing and Recycling

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 3409-3414
description: In this work, the multiple liquid and gas waste stream products derived from the fabrication of monoand
multi-crystalline silicon based solar cells in a standard 120 MW/year production line are evaluated. The data are
obtained from the Ecoinvent database, and some additional assumptions are made in relation to the current state of
the technology and costs of the consumables. The aim of the work is to reach zero environmental impact for the
different waste streams chemically treating all of them to recover consumables for their reuse or transferring the
products to other industrial activities. In this regard, six waste streams have been identified: (i) two liquid waste
streams of HF/H2SiF6/HNO3 and NH3; (ii) three gasses waste streams of NH3/SiH4, HCl, and
H2/HF//KOH/HNO3/NOx/SiF4; and (iii) a solid waste stream of KNO3. The purification of the water inside the liquid
lines is analyzed for being reused inside the production line. Also, some purification processes allow the recovering
of gases used in the fabrication steps. The new products derived from the chemical treating are NaNO3, CaF2,
N2SiF6, NH4Cl, and they are attractive for being transferred to the industry as fertilizers and electrical insulators for
transformers. Some important sensitive curves related to variations in consumable costs and demands are also
included.
On the equivalence of the Nernst theorem and its consequence
Creators: name: Su, Shanhe
name: Zhou, Yinghui
name: Su, Guozhen
name: Chen, Jincan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: One general consequence of the Nernst theorem is derived, i.e., the various heat capacities of a thermodynamic system under different constraints approach zero as the temperature approaches absolute zero. The temperature dependence of the heat capacity of any thermodynamic system at ultra-low temperatures is revealed through this consequence. Moreover, the general form and the simplest expression of the heat capacities of thermodynamic systems at ultra-low temperatures are deduced. Some significant discussion and results are given. One new research method is provided by using this consequence. Finally, the equivalence between the Nernst theorem and its consequence is rigorously proved, so that this consequence may be referred to another description of the third law of thermodynamics.
Balantiopteryx inopinatus Thomas 1904
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Emballonuridae
Balantiopteryx

description: Balantiopteryx io Thomas, 1904. Ann. Mag. Nat. Hist., ser. 7, 13:252. TYPE LOCALITY: Guatemala, Alta Verapaz, Rio Dolores (near Coban). DISTRIBUTION: S Veracruz and Oaxaca (Mexico) to EC Guatemala and Belize. COMMENTS: See Arroyo-Cabrales and Jones (1988b, Mammalian Species, 313).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 156, DOI: 10.5281/zenodo.7353060
description: {"references": ["Arroyo-Cabrales, J., and J. K. Jones, Jr. 1988 b. Balantiopteryx io and Balantiopteryx infusca. Mammalian Species, 313: 1 - 3."]}
IR-Images Investigation of the Thermal Behaviour of Shaded PV Cells During Operation
Creators: name: Smara, Z.
name: Mahrane, A.
name: Kaïbiche, A.
Publisher: name: WIP
Year: 2014
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (from Cells to Systems)
Performance and Reliability of Solar Cells

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 3370-3373
description: Partial shading on photovoltaic modules or systems can lead to early aging and failure of the shadowed cells. As a result of this critical situation more than one power peak appear on the P-V characteristic curve. The purpose of this work is to evaluate the heat dissipation and the temperature distribution in the shaded solar cells for each local or global power peak. To this aim, three PV systems are used. Each of them is composed by one Simonocrystalline PV module (JT-185W) equipped with three bypass diodes, 2 volts solar battery elements are used as loads. For each module two shaded solar cells are considered, each cell is from a given string protected by a bypassdiode. IR images show the limits of the temperature distribution in each shaded cell for each peak (local or global) and the influence of the shadow pattern on the P-V characteristic curve. The risk of shading on the PV module was quantified. It was found that the nearest power peak to Voc on the P-V characteristic curve is the safest one for the module operation.
Mechanical Modelling of Electrically Conductive Adhesives for Photovoltaic Applications
Creators: name: Pander, M.
name: Schulze, S.
name: Ebert, M.
Publisher: name: WIP
Year: 2014
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (from Cells to Systems)
Quality and Sustainability in Manufacturing and Recycling

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 3399-3405
description: Electrical conductive adhesives are a promising alternative to common soldering technologies. Advantages are lower process temperatures (<150°C), meaning lower mechanical stresses, relatively simple process technology with opportunity for automation and environment-friendliness, since there is no lead and flux necessary. This paper focuses on the mechanical characterization for finite element simulation. For this purpose samples are prepared for mechanical tests to identify time and temperature dependent material properties. On the assumption of a thermo-rheological simple material, master curves are constructed and parameters for a linear-viscoelastic model are identified. Additionally the thermal expansion behavior is measured in order to obtain the opportunity to simulate temperature induced strains accurately.
The material models are applied to analyze stress situations in thin film photovoltaic modules were back contact and cross bar contacting is done with conductive adhesive material. A comparative study between soldering and conductive gluing is presented to quantify the reduction of mechanical stresses in back contact solar cells.
Domain Wall Equations, Hessian of Superpotential, and Bogomol'nyi Bounds
Creators: name: Chen, Shouxin
name: Yang, Yisong
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: An important question concerning the classical solutions of the equations of motion arising in quantum field theories at the BPS critical coupling is whether all finite-energy solutions are necessarily BPS. In this paper we present a study of this basic question in the context of the domain wall equations whose potential is induced from a superpotential so that the ground states are the critical points of the superpotential. We prove that the definiteness of the Hessian of the superpotential suffices to ensure that all finite-energy domain-wall solutions are BPS. We give several examples to show that such a BPS property may fail such that non-BPS solutions exist when the Hessian of the superpotential is indefinite.
description: 25 pages
Early Mars volcanic sulfur storage in the cryosphere and formation of transient SO2-rich atmospheres during the Hesperian
Creators: name: Schmidt, F.
name: Chassefière, E.
name: Tian, F.
name: Dartois, E.
name: Herri, J. -M.
name: Mousis, O.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In a previous paper (Chassefière et al., Icarus 223, 878-891, 2013), we have shown that most volcanic sulfur released to early Mars atmosphere could have been trapped in the cryosphere under the form of CO2-SO2 clathrates. Huge amounts of sulfur, up to the equivalent of a ~1 bar atmosphere of SO2, would have been stored in the Noachian cryosphere, then massively released to the atmosphere during Hesperian due to rapidly decreasing CO2 pressure. It would have resulted in the formation of the large sulfate deposits observed mainly in Hesperian terrains, whereas no or little sulfates are found at the Noachian. In the present paper, we first clarify some aspects of our previous work. We discuss the possibility of a smaller cooling effect of sulfur particles, or even of a net warming effect. We point out the fact that CO2-SO2 clathrates formed through a progressive enrichment of a preexisting reservoir of CO2 clathrates and discuss processes potentially involved in the slow formation of a SO2-rich upper cryosphere. We show that episodes of sudden destabilization at the Hesperian may generate 1000 ppmv of SO2 in the atmosphere and contribute to maintaining the surface temperature above the water freezing point.
description: 15 pages, 1 figure
Investigation of c-Si Modules Degradation and Recovery Effect under High Potentials
Creators: name: Jaeckel, B.
name: Cosic, M.
name: Arp, J.
Publisher: name: WIP
Year: 2014
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (from Cells to Systems)
Performance and Reliability of Solar Cells

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 3350-3354
description: Today’s PV industry is focusing on many concurrent challenges. Besides the financial challenges there are also
technological ones. One important is Potential induced Degradation (PID) which is still a present and high priority
degradation mechanism in today’s more than 100GWp PV installations. From existing installations a significant
percentage will face or already faced the problem of PID. It is therefore important not only to study new modules and
prove their PID resistance, but also to study test procedures to find fast methods to assess the PID sensitivity of
modules in existing installations showing PID. This could give O&M-Teams guidance of possible countermeasure
that takes technology complexity, robustness, effectiveness and costs into account.
PID of crystalline PV modules [1] is a shunting mechanism of c-Si solar cells that can cause dramatic power losses in
ungrounded installations operated at higher system voltages. For thin film PV modules a phenomenon called TCO
corrosion [2] was mainly discussed but other events exist [3]. Each failure mode might require different
environmental conditions to be observable in the field and also to be reproducible in the laboratory by an accelerated
test. In this contribution the focus is on one particular failure mode of c-Si modules, called PID.
Most studies in the past were focused on finding the best method to degrade modules [4]. But the question is how the
modules interact in the field with varying stressors like different voltages, change in temperature and change in
surface conductivity to generate harmful PID potentials and how to correlate the results from accelerated stress tests
to real outdoor applications. To answer this question a different approach to prove the stability of PV modules against
the PID effect has been undertaken. A new test sequence is proposed that does not only consider the degradation but
also the recovery rate and by that defines new stability criteria. Voltage cycling (CV) is introduced to examine the
degradation and regeneration/recovery behavior of the used PV modules. The paper gives looks into possible
degradation mechanisms [5] and into the recovery of a module’s power output. Different degradation scenarios are
explained and data is presented.
The proposed test sequence (CV-PID) can be used to determine appropriate countermeasure if an installation already
shows PID. This countermeasure could be a simple device that applies a certain recovery potential during the night or
a potential shifting system that always keeps the module string at a safe potential. Depending on
degradation/recovery modes, one or the other countermeasure is more effective and more sustainable in the long
term.
Balantiopteryx plicata Peters 1867
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Emballonuridae
Balantiopteryx
Balantiopteryx plicata

description: Balantiopteryx plicata Peters, 1867. Monatsb. K. Preuss. Akad. Wiss. Berlin, 1867:476. TYPE LOCALITY: Costa Rica, Puntarenas. DISTRIBUTION: Costa Rica to C Sonora and S Baja California (Mexico); N Colombia. SYNONYMS: ochoterenai, pallida. COMMENTS: See Arroyo-Cabrales and Jones (1988a, Mammalian Species, 301).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 156, DOI: 10.5281/zenodo.7353060
description: {"references": ["Arroyo-Cabrales, J., and J. K. Jones, Jr. 1988 a. Balantiopteryx plicata. Mammalian Species, 301: 1 - 4."]}
Comparison of a Coupled PV Module Simulation with Experimental Measurements
Creators: name: Kubicek, B.
name: Wagner, M.
Publisher: name: WIP
Year: 2014
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (from Cells to Systems)
Performance and Reliability of Solar Cells

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 3368-3369
description: In previous papers [1-3], a C++ code was developed to perform a full 3d simulation of the temperature
distribution within photovoltaic panels under operation. The code performs a multiphysical cosimulation of thermal
transport, including CFD calibrated wind cooling, radiative cooling, an optical simulation of the volumetric absorption
and refractive index change induced reflections, and the full temperature dependent electric circuit model of the
individual cells and bypass diodes. The temperature and cell simulations are iteratively coupled, to obtain the UIcharacteristics
and temperature distributions of the module.
What can the 2008/10 broadband flare of PKS 1502+106 tell us? Nuclear opacity, magnetic fields, and the location of gamma rays
Creators: name: Karamanavis, V.
name: Fuhrmann, L.
name: Angelakis, E.
name: Nestoras, I.
name: Myserlis, I.
name: Krichbaum, T. P.
name: Zensus, J. A.
name: Ungerechts, H.
name: Sievers, A.
name: Gurwell, M. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Context. The origin of blazar variability, seen from radio up to gamma rays, is still a heavily debated matter and broadband flares offer a unique testbed towards a better understanding of these extreme objects. Such an energetic outburst was detected by Fermi/LAT in 2008 from the blazar PKS 1502+106. The outburst was observed from gamma rays down to radio frequencies. Aims. Through the delay between flare maxima at different radio frequencies, we study the frequency-dependent position of the unit-opacity surface and infer its absolute position with respect to the jet base. This nuclear opacity profile enables the magnetic field tomography of the jet. We also localize the gamma-ray emission region and explore the mechanism producing the flare. Methods. The radio flare of PKS 1502+106 is studied through single-dish flux density measurements at 12 frequencies in the range 2.64 to 226.5 GHz. To quantify it, we employ both a Gaussian process regression and a discrete cross-correlation function analysis. Results. We find that the light curve parameters (flare amplitude and cross-band delays) show a power-law dependence on frequency. Delays decrease with frequency, and the flare amplitudes increase up to about 43 GHz and then decay. This behavior is consistent with a shock propagating downstream the jet. The self-absorbed radio cores are located between about 10 and 4 pc from the jet base and their magnetic field strengths range between 14 and 176 mG, at the frequencies 2.64 to 86.24 GHz. Finally, the gamma-ray active region is located at (1.9 +/- 1.1) pc away from the jet base.
description: 10 pages, 5 figures. Accepted for publication in A&A
Continuum modeling of Soft Glassy Materials under shear
Creators: name: Benzi, Roberto
name: Divoux, Thibaut
name: Barentin, Catherine
name: Manneville, Sébastien
name: Sbragaglia, Mauro
name: Toschi, Federico
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Soft Glassy Materials (SGM) consist in dense amorphous assemblies of colloidal particles of multiple shapes, elasticity, and interactions, which confer upon them solid-like properties at rest. They are ubiquitously encountered in modern engineering, including additive manufacturing, semi-solid flow cells, dip-coating, adhesive locomotion, where they are subjected to complex mechanical histories. Such processes often include a solid-to-liquid transition induced by large enough shear, which results in complex transient phenomena such as non-monotonic stress responses, i.e., stress overshoot, and spatially heterogeneous flows, e.g., shear-banding or brittle failure. In the present article, we propose a pedagogical introduction to a continuum model based on a spatially-resolved fluidity approach that we recently introduced to rationalize shear-induced yielding in SGMs. Our model, which relies upon non-local effects, quantitatively captures salient features associated with such complex flows, including the rate dependence of the stress overshoot, as well as transient shear-banded flows together with nontrivial scaling laws for fluidization times. This approach offers a versatile framework to account for subtle effects, such as avalanche-like phenomena, or the impact of boundary conditions, which we illustrate by including in our model the elasto-hydrodynamic slippage of soft particles compressed against solid surfaces.
description: 8 pages, 4 figures
"Co"ARA: COmunidad, COallición, COlaboaración para avanzar en la reforma de la evaluación
Creators: name: Méndez, Eva
Publisher: name: Zenodo
Year: 2023

description: Apresentação realizada na sessão "Conferência de Encerramento" da 14ª Conferência Lusófona de Ciência Aberta, Natal Brasil, de 18 a 21 de setembro de 2023.
Comparison of Solar Cell, Module and System Performance between N-Mono, P-Mono and P-Multi Technology
Creators: name: Hu, Y.-C.
name: Yang, C.-W.
name: Su, T.-Y.
name: Su, H.-L.
name: Liu, J.-C.
name: Kuo, M.-C.
name: Huang, M.-Y.
name: Wu, Z.-C.
Publisher: name: WIP
Year: 2014
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (from Cells to Systems)
PV Modules

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 3318-3322
description: This paper focused on studying the influence of PV system from cell level to module level. Several
module level mechanisms about performance and reliability could be originated from the characteristic of cell. And
such mechanism could be bringing further into system level. Correlation between cells to module level could be
found through the electrical characteristic, light induced degradation (LID), potential induced degradation (PID). And
the cell to module (CTM) power loss was examined with EQE, and module level component. The comparison
between different cell technologies was achieved with outdoor system. Some possible effect and reliability issues
related to monitoring activities, as well as the performance of different PV technologies, will be highlighted.