cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Reliability Results for High-Efficiency Foil-Based Back-Contact PV Modules
Creators: name: Rosca, V.
name: Goris, M.J.A.A.
name: Okel, L.A.G.
name: Van Aken, B.B.
name: Guillevin, N.
name: Mewe, A.A.
name: Cesar, I.
name: Geerligs, L.J.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2545-2548
description: In this paper we have presented an overview of the recent reliability results obtained at ECN for foilbased
p-MWT, and novel high-efficiency n-MWT and IBC back-contact modules. As deduced from extensive TC
and DH testing on p-MWT modules, two alternative low-cost conductive back sheet foils were shown to improve the
module reliability. Exposure to DH of the foil-based modules can cause Cu discoloration. This is observed for EVA
and a number of alternative encapsulants, with moisture ingress and some specific interactions between encapsulant
and Cu substrate playing a role. The n-MWT modules showed improved resistance to DH exposure as compared to n-
Pasha (front-to-back tabbing) modules. TC300 and DH2000 tests were passed for frameless IBC Mercury 2x2
modules built using standard foil-based module manufacture process and standard module materials.
Merging droplets in double nano-contact spin torque oscillators
Creators: name: Xiao, Dun
name: Liu, Yaowen
name: Zhou, Y.
name: Mohseni, S. M.
name: Chung, S.
name: Åkerman, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate how magnetic droplet soliton pairs, nucleated by two separated nano-contact (NC) spin torque oscillators, can merge into a single droplet soliton. A detailed description of the magnetization dynamics of this merger process is obtained by micromagnetic simulations: A droplet pair with a steady-state in-phase spin precession is generated through the spin-transfer torque effect underneath two separate NCs, followed by a gradual expansion of the droplets volume and the out phase of magnetization on the inner side of the two droplets, resulting in the droplets merging into a larger droplet. This merger occurs only when the NC separation is smaller than a critical value. A transient breathing mode is observed before the merged droplet stabilizes into a steady precession state. The precession frequency of the merged droplet is lower than that of the droplet pair, consistent with its larger size. Merged droplets can again break up into droplet pairs at high enough magnetic field with a strong hysteretic response.
description: accepted by Physical Review B
Pteropus hypomelanus Temminck 1853
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus hypomelanus

description: Pteropus hypomelanus Temminck, 1853. Esquisses Zool. sur la Côte de Guine, p. 61. TYPE LOCALITY: Indonesia, Molucca Isis, Ternate Isl. DISTRIBUTION: Maidive Isis; New Guinea through Indonesia to Vietnam and Thailand, and adjacent islands; Solomon Isis; Philippines. STATUS: CITES - Appendix II. SYNONYMS: annectens, cagayanus, canus, condorensis, enganus, fretensis, gentinorum, lepidus, luteus, macassaricus, maris, robinsoni, simalurus, tomesi, tricolor, vulcanius. COMMENTS: Formerly included brunneus; see Ride (1970: 180); but see Koopman (1984c).
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 147, DOI: 10.5281/zenodo.7353060
description: {"references": ["Ride, W. D. L. 1970. A guide to the native mammals of Australia. Oxford University Press, Melbourne, 249 pp.", "Koopman, K. F. 1984 c. Taxonomic and distributional notes on tropical Australian bats. American Museum Novitates, 2778: 1 - 48."]}
Mechanical and Chemical Characterization of Solder Joints After Accelerated Ageing Tests
Creators: name: Dürr, I.
name: Walter, J.
name: Kraft, A.
name: Weiß, K.-A.
name: Eitner, U.
name: Volk, M.
name: Ebert, C.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2524-2528
description: Isothermal ageing is a widely used method in electronics to address the alleged long-term stability of
soldered joints. Compared to common IEC 61215 module tests such as damp heat or thermal cycling it is relatively
fast (< 90 h), does not require the lamination of a module and allows ribbon peel testing and metallographic analysis
after the test. We study the mechanical and chemical solder joint properties after isothermal cell testing compared to
thermal cycling and damp heat exposure of mini-modules.
In this study solder joints of encapsulated Multi-Busbar (MBB) solar cells, which provide a multitude of single joints,
are investigated after accelerated ageing tests. A special demountable one-cell-module setup enables chemical and
mechanical characterization of solder joints after damp heat and thermal cycling tests. The observed fracture patterns
are analyzed and designated to the degradation products characterized by Raman spectroscopy. Isothermal ageing and
thermal cycling show non-chemical failure mechanisms caused by mechanical stress or intermetallic phase growth.
The largest impact on contact adhesion and indicators for chemical degradation are found after damp heat testing. As
opposed to the phenomenon of grid finger corrosion with 3BB cells reported in literature, where the EL measurement
shows clear indication for a complete loss of electrical contacts and very low adhesion to the cell, the EL
measurement of the DH aged MBB module shows that the electrical contact of the affected metallization is still intact
compared to the initial EL image.
Flow field from transient bubble oscillation in a narrow gap: numerical simulations and effect on biological cells
Creators: name: Mohammadzadeh, Milad
name: Li, Fenfang
name: Ohl, Claus-Dieter
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The flow driven by a rapidly expanding and collapsing cavitation bubble in a narrow cylindrical gap is studied with the volume of fluid method. The simulations reveal a developing plug flow during the early expansion followed by flow reversal at later stages. An adverse pressure gradient leads to boundary layer separation and flow reversal, causing large shear stress near the boundaries. Analytical solution to a planar pulsating flow shows qualitative agreement with the CFD results. The shear stress close to boundaries has implications to deformable objects located near the bubble: experiments reveal that thin, flat biological cells entrained in the boundary layer become stretched, while cells with a larger cross-section are mainly transported with the flow.
description: 10 pages, 8 figures, keywords: cavitation, microfluidics, boundary layer separation
Accelerated Damp Heat Test Combining Current Stressor
Creators: name: Chen, H.
name: Hsueh, C.H.
name: Chen, C.
name: Chang, M.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2549-2553
description: Damp heat test is one of the crucial qualification test in IEC 61215 standard to evaluate the ability to
withstand thermal and humidity penetration. In this paper, by applying with Arrhenius model, the activation energy
extracted from extended damp heat for P-multi crystalline silicon PV module is 0.78eV. Furthermore, we
simultaneously exert short circuit current (Isc) bias as another stressor to investigate the failure modes and the
correlation with temperature and humidity. The acceleration factor for P-multi and P-mono module is 1.48 and 1.46
by applying Isc loading, and it is almost equivalent to that (1.42) of raising temperature from 85°C to 90°C during
damp heat. The module with and without electric current bias shows similar failure modes – mainly due to corrosion.
We also compared prolonged DH test for bare cell and module by EL, visual inspection and electrical characteristics.
The ability of bare cell to withstand the effect of long term penetration of humidity is stronger than we thought. It
infers that other material like acetic acid generated by hydrolysis reaction between water vapor and EVA, or finger
corrosion induced by flux residual may cause power decay tremendously after damp heat. This corrosion of the
electrical interconnects by EVA flux will be also studied in the future work.
Ridge regression and asymptotic minimax estimation over spheres of growing dimension
Creators: name: Dicker, Lee H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We study asymptotic minimax problems for estimating a $d$-dimensional regression parameter over spheres of growing dimension ($d\to \infty$). Assuming that the data follows a linear model with Gaussian predictors and errors, we show that ridge regression is asymptotically minimax and derive new closed form expressions for its asymptotic risk under squared-error loss. The asymptotic risk of ridge regression is closely related to the Stieltjes transform of the Marčenko-Pastur distribution and the spectral distribution of the predictors from the linear model. Adaptive ridge estimators are also proposed (which adapt to the unknown radius of the sphere) and connections with equivariant estimation are highlighted. Our results are mostly relevant for asymptotic settings where the number of observations, $n$, is proportional to the number of predictors, that is, $d/n\toρ\in(0,\infty)$.
description: Published at http://dx.doi.org/10.3150/14-BEJ609 in the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Leggett--Garg inequality violations with a large ensemble of qubits
Creators: name: Lambert, Neill
name: Debnath, Kamanasish
name: Kockum, Anton Frisk
name: Knee, George C.
name: Munro, William J.
name: Nori, Franco
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate how discrete internal degrees of freedom in a quasi-macroscopic system affect the violation of the Leggett--Garg inequality, a test of macroscopic-realism based on temporal correlation functions. As a specific example, we focus on an ensemble of qubits subject to collective and individual noise. This generic model can describe a range of physical systems, including atoms in cavities, electron or nuclear spins in NV centers in diamond, erbium in Y$_2$SiO$_5$, bismuth impurities in silicon, or arrays of superconducting circuits, to indicate but a few. Such large ensembles are potentially more macroscopic than other systems that have been used so far for testing the Leggett--Garg inequality, and open a route toward probing the boundaries of quantum mechanics at macroscopic scales. We find that, because of the non-trivial internal structure of such an ensemble, the behavior of different measurement schemes, under the influence of noise, can be surprising. We discuss which measurement schemes are optimal for flux qubits and NV centers, and some of the technological constraints and difficulties for observing such violations with present-day experiments.
description: 15 pages, 5 figures
Reduced Shading Effect on Half-Cell Modules – Measurement and Simulation
Creators: name: Hanifi, H.
name: Schneider, J.
name: Bagdahn, J.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2529-2533
description: Commercial PV modules consist of series connected solar cells and three bypass diodes to protect the
strings against hotspots. The power loss of the module’s strings under partial shading conditions is related to the
shading area. In this work, we show that solar module’s behavior under partial shading conditions can be improved
and its energy characteristics are raised by using halved cells and changing the module configurations and design. A
reference module using full size solar cells and a half-cell module are simulated and fabricated and the results are
discussed for different shading scenarios. Both simulation and experiment results agree to a good extent and they
show better performance of half-cell modules under partial shading conditions and higher output power due to optical
gain and less electrical losses in cell connectors. The short-circuit current of the module increase to about 3% due to
the cell spacing and the Fill Factor rises to 1.48%. Finally, the movement direction of shade can affect the half-cell
module’s performance significantly.
Hot-Spot Measurements on Crystalline Silicon Solar Cells with Different Reverse Current Characteristic
Creators: name: Podlowski, L.
name: Janke, S.
name: Litzenburger, B.
name: Pingel, S.
name: Wendlandt, S.
name: Teubner, J.
name: Berghold, J.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2554-2556
description: Hot spots of crystalline silicon solar cells are a major failure mode for solar modules. Consecutive on
our last year’s investigation where we showed that a comparison of (i) a simple hot spot test on bare cells in the dark
to (ii) a hot spot test on module level with complete shaded cells gives a rather wide spread in temperature rise with
non-perfect correlation. In this work we shortly recapitulate and present investigation where we varied the shading
level of laminated solar cells with different reverse bias current levels. The data shows for each solar cell a worst case
shading scenario that is dominated by the reverse bias current behavior. This finding is also supported by simulations
that show a comparable maximal dissipated power for each investigated cell.
Pteropus insularis Hombron and Jacquinot 1842
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus insularis

description: Pteropus insularis Hombron and Jacquinot, 1842. In d'Urville, Voy. Pole Sud. Mammifères, p. 24. TYPE LOCALITY: Caroline Isis, Truk Isl, Hogoleu (Pac. Isis Trust Terr., USA). DISTRIBUTION: Truk Isis (C Caroline Isis). STATUS: CITES - Appendix I; IUCN - Endangered. SYNONYMS: laniger.
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 pages 147-148, DOI: 10.5281/zenodo.7353060
Recent developments in Monte-Carlo Event Generators
Creators: name: Schönherr, Marek
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: With Run II of the LHC having started, the need for high precision theory predictions whose uncertainty matches that of the data to be taken necessitated a range of new developments in Monte-Carlo Event Generators. This talk will give an overview of the progress in recent years in the field and what can and cannot be expected from these newly written tools.
description: 6 pages, 5 figures, ISMD 2015 proceedings
ESPnet2 pretrained model, XLS-R + mBART50
Creators: name: Denisov, Pavel
Publisher: name: Zenodo
Year: 2023

description: ESPnet2 pretrained model, XLS-R + mBART50 (with Conformer Adaptor), trained on 7K hours in 36 languages (Common Voice Corpus 9.0 and WenetSpeech).
Thermal Stress Analysis at Encapsulation and Backsheet Materials for PV-Modules
Creators: name: Wendlandt, S.
name: Berthold, R.
name: Stegemann, B.
name: Sucherneck, O.
name: Hanusch, M.
name: Drobisch, A.
name: Berghold, J.
name: Schoppa, M.
name: Krauter, S.
name: Grunow, P.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2485-2489
description: Infrared imaging is a powerful method to identify and to analyze solar cells or modules with relatively
higher temperatures during flied inspections. Higher temperature values can be attributed to cell mismatches,
shadowing or isolated fractures (i.e., reduction of the active cell area). In this paper, the consequences of higher
thermal loads on the encapsulation and back sheet foils have been investigated. Typical pv-module foils were aged at
defined temperatures and periodically the visual, the electrical isolation and the optical properties were analyzed.
Finally, this paper shows a hot spot risk assessment for different encapsulation foils and back sheets materials.
Soiling and Abrasion Testing of Surfaces for Solar Energy Systems Adapted to Extreme Climatic Conditions
Creators: name: Klimm, E.
name: Kaltenbach, T.
name: Philipp, D.
name: Masche, M.
name: Weiß, K.-A.
name: Köhl, M.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2521-2523
description: Extreme climatic locations, such as arid or maritime regions, are very demanding for solar energy
systems. In this paper we share experiences about the soiling of surfaces, exposed for one and two years at outdoor
weathering tests sites with different climatic conditions, and their effect on the surface properties. We describe an inhouse
developed soiling test, to qualify glazing with realistic dust for reproducible and homogeneous test results. The
second part of this paper describes characterization measurements by spectral transmittance, especially after applying
the dusting method. Next to soiling, a roughening of glazing surfaces in arid areas is most likely to occur, especially
due to sand storms. To simulate this abrasive stress an additional test of the stability of the functional coatings is
developed and applied. The abrasion test is conducted with an in-house developed sand trickling test stand according
to DIN 52 348. Results of the outdoor and indoor tested material show the strong influence of dust types and material
properties on soiling and durability of the surfaces.
Dos and Don'ts of Leakage Current Measurement
Creators: name: Voswinckel, S.
name: Wesselak, V.
name: Fokuhl, E.
name: Schmidt, C.
name: Watzlawik, K.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2508-2512
description: Potential induced degradation (PID), TCO corrosion and High voltage stress (HVS) are synonyms for degradation
mechanisms which lead to a reduction of module efficiency. The observable phenomenas for cSi, superstrate
and substrate modules are quite different. For all technologies high system voltages lead to accelerated degradation.
The suspected sodium migration is followed by a leakage current between module connectors and ground. The magnitude
of the potential and the leakage current is quite different. Voltages up to 1000V DC are typical whereas the
leakage current is around one μA or less. So there are high requirements for measuring low currents in high voltage circuits.
Furthermore there are different leakage current pathways. The magnitude of the leakage current depends on the
dominating pathway. Consequently the knowledge of the active leakage current pathway is essential for a correlation
of indoor and outdoor measurements.
Strong cooperative coupling of pressure-induced magnetic order and nematicity in FeSe
Creators: name: Kothapalli, K.
name: Böhmer, A. E.
name: Jayasekara, W. T.
name: Ueland, B. G.
name: Das, P.
name: Sapkota, A.
name: Taufour, V.
name: Xiao, Y.
name: Alp, E. E.
name: Bud'ko, S. L.
name: Canfield, P. C.
name: Kreyssig, A.
name: Goldman, A. I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A hallmark of the iron-based superconductors is the strong coupling between magnetic, structural and electronic degrees of freedom. However, a universal picture of the normal state properties of these compounds has been confounded by recent investigations of FeSe where the nematic (structural) and magnetic transitions appear to be decoupled. Here, using synchrotron-based high-energy x-ray diffraction and time-domain Moessbauer spectroscopy, we show that nematicity and magnetism in FeSe under applied pressure are indeed strongly coupled. Distinct structural and magnetic transitions are observed for pressures, 1.0 GPa <= p <= 1.7 GPa, which merge into a single first-order phase line for p >= 1.7 GPa, reminiscent of what has been observed, both experimentally and theoretically, for the evolution of these transitions in the prototypical doped system, Ba(Fe[1-x]Co[x])2As2. Our results support a spin-driven mechanism for nematic order in FeSe and provide an important step towards a universal description of the normal state properties of the iron-based superconductors.
description: (14 pages, 4 figures)
Pteropus leucopterus Temminck 1853
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus leucopterus

description: Pteropus leucopterus Temminck, 1853. Esquisses Zool. sur la Côte de Guine, p. 60. TYPE LOCALITY: Philippines. DISTRIBUTION: Philippines (known only from Luzon and Dinagat). STATUS: CITES - Appendix II. SYNONYMS: chinensis.
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 148, DOI: 10.5281/zenodo.7353060
Long Term Accelerated Weathering Tests on “Coupons” to Develop New Classes of Backsheets
Creators: name: Rummens, F.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2478-2481
description: Renolit N.V. has developed a new class of Backsheet on base of Polypropylene and Polyamide with
lower WVTR and higher acetic acid permeability than PET based backsheet. The backsheet is white pigmented in the
bulk which allows for an higher Solar Reflectance than PET based transparent core backsheet. Photovoltaic module
constructions using such backsheet show some discoloration (yellowing) in Damp Heat test (85°C / 85 % RH)
contrary to the same constructions with PET based backsheet. It is important to understand the root cause of observed
yellowing and its significance. In the present case, yellowing in Damp Heat is the consequence of the oxidation of the
anti-oxidants added to the backsheet to extend its durability. It doesn’t occur in use, i.e. under sunlight exposure. The
mechanism of yellowing is discussed. By reaction with residual peroxides of the encapsulation films (EVA), phenolic
anti-oxidant are oxidized to yellow dyes derived from Quinonemethide. Under light, such molecules are reduced
against to regenerate colorless anti-oxidants, able to further neutralize residual peroxides. This explains why the same
coupons (Glass / EVA / mini-cell / EVA / backsheet) which heavily turn yellow after 1.000 hours of Damp Heat,
remain unchanged under 2-Suns weathering test even after 21.000 hours, an equivalent of close to 40 years Florida
sun exposure. No sign of corrosion neither of the grid fingers nor of the ribbons is observed in such weathering test.
As additives extending the lifetime of polymers and reacting with residual peroxides have the tendency to produce
yellow dyes in the dark, reduction of additive package of polymeric films to minimize yellowing in Damp Heat test
may in fact lead to durability reduction. The present paper enhances the importance of developing cost effective
encapsulation and backsheet solutions for Photovoltaic modules on base of weathering tests on coupons.
To improve Photovoltaic module durability, the barrier properties of the backsheet should also be taken into account.
Pteropus livingstonei Gray 1866
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus livingstonei

description: Pteropus livingstonei Gray, 1866. Proc. Zool. Soc. Lond., 1866:66. TYPE LOCALITY: Comoro Isis, Anjouan Isl. DISTRIBUTION: Comoro Isis. STATUS: CITES - Appendix II; IUCN - Endangered. COMMENTS: See Bergmans (1990).
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 148, DOI: 10.5281/zenodo.7353060
description: {"references": ["Bergmans, W. 1990. Taxonomy and biogeography of African fruit bats (Mammalia: Megachiroptera). 3. The genera Scotonycteris Matschie, 1894, Casinycteris Thomas, 1910, Pteropus Brisson, 1762, and Eidolon Rafinesque, 1815. Beaufortia, 40 (7): 111 - 177."]}
Resolved gas kinematics in a sample of low-redshift high star-formation rate galaxies
Creators: name: Varidel, Mathew
name: Pracy, Michael
name: Croom, Scott
name: Owers, Matt
name: Sadler, Elaine
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have used integral field spectroscopy of a sample of six nearby (z~0.01-0.04) high star-formation rate (SFR~10-40 solar masses per year) galaxies to investigate the relationship between local velocity dispersion and star formation rate on sub-galactic scales. The low redshift mitigates, to some extent, the effect of beam smearing which artificially inflates the measured dispersion as it combines regions with different line-of-sight velocities into a single spatial pixel. We compare the parametric maps of the velocity dispersion with the Halpha flux (a proxy for local star-formation rate), and the velocity gradient (a proxy for the local effect of beam smearing). We find, even for these very nearby galaxies, the Halpha velocity dispersion correlates more strongly with velocity gradient than with Halpha flux - implying that beam smearing is still having a significant effect on the velocity dispersion measurements. We obtain a first-order non parametric correction for the unweighted and flux weighted mean velocity dispersion by fitting a 2D linear regression model to the spaxel-by-spaxel data where the velocity gradient and the Halpha flux are the independent variables and the velocity dispersion is the dependent variable; and then extrapolating to zero velocity gradient. The corrected velocity dispersions are a factor of ~1.3-4.5 and ~1.3-2.7 lower than the uncorrected flux-weighted and unweighted mean line-of-sight velocity dispersion values, respectively. These corrections are larger than has been previously cited using disc models of the velocity and velocity dispersion field to correct for beam smearing. The corrected flux-weighted velocity dispersion values are sigma_m~20-50 km/s.
description: 12 pages, 4 figures
Sensitivity of Different Bills of Materials to PID: Fast Test Method
Creators: name: Bertani, D.
name: Liciotti, C.
name: Minuto, A.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2495-2498
description: IEC TS 62804-1:2015 defines procedures to test and evaluate the durability of crystalline silicon
photovoltaic (PV) modules to the effects of short-term high-voltage stress. This technical specification is available to
test PV modules’ behavior regarding Potential Induced Degradation (PID), one of the most recent and relevant
module’s degradation phenomena which frequently led to significant yield losses in c-Si PV power plants. During the
development phase of the technical specification many module’s manufacturers were proposing different test
methods in order to find a faster and more efficient way to check materials’ sensitivity to PID. PV Industry’s main
goal is to verify PID sensibility of PV modules produced with different combinations of raw materials and then
validate the different batches of encapsulants and cells used in production. The aim of this work is to correlate the
results of new test methods with those of the method proposed in the IEC TS 62804-1:2015 and consequently to
validate the industrial test methods. To achieve these goal, 4 different Bills of Materials (BOM) were selected, using
crystalline silicon cells and EVAs identified as sensible or resistant to PID according to an industrial test method.
These BOMs were stressed in parallel according to the stress method “a” IEC TS 62804-1:2015, damp heat testing
with an environmental chamber while applying high voltage, and according to the “industrial test method”. Results
are compared and a correlation has been verified.
Bibliotheken als Forschungsdatenproduzenten. Fortbildung des VDB LV Bayern.
Creators: name: , Annette.Strauch@Uni-Hildesheim.De
Publisher: name: Zenodo
Year: 2023
Subjects: FDM
Forschungsdaten
forschungsdaten
Forschungsdatenmanagement
Bibliotheken
libraries
RDM
Research Data Management
research data
research data management
Open Science

description: 'Virtuelle' Fortbildung zum Thema Forschungsdaten (März 2023).

 Allgem. Einführung mit folgenden Schwerpunkten: Rechtl. Aspekte, die Bibliothek als DienstleisterIn, FDM-Kompetenzen und Anforderungen an BibliothekarInnen, Bibliotheken als ForschungsdatenproduzentInnen.
title: Influence of Abiotic Drivers and Plant Community Interactions on Bald Cypress (Taxodium Distichum) Seedlings: Implications for Restoration
Creators: name: Ellis, Victoria
Publisher: name: Old Dominion University Libraries
Year: 2023

description: Forested freshwater wetlands are valuable ecosystems that provide habitat for numerous species, sequester carbon, and act as sinks for excess water and nutrients. Historically, these ecosystems have been heavily degraded by anthropogenic activities leading to loss of ecosystem services and a desire to restore freshwater forested wetland habitat. Thus, science-backed approaches for the restoration of freshwater forested wetlands are necessary to ensure restoration goals are met. This body of research employed the Stress Gradient Hypothesis to test whether a multi-species planting approach using Juncus effusus (L.) (soft rush) could facilitate the survival of Taxodium distichum (L.) Rich. (bald cypress) seedlings under varying levels of light and flooding exposure. This research was composed of a greenhouse experiment and an observational field study that characterized bald cypress growth and plant interspecific interactions under varying abiotic gradients both ex situ and in situ respectively. The results of the greenhouse experiment showed that soft rush did not facilitate the growth of bald cypress under any tested environmental condition tested. Further, the field study revealed that although bald cypress seedlings frequently co-occur with graminoid species, bald cypress seedling establishment was greater when surrounding vegetation cover and species richness were lower. These studies emphasize the role of light and elevation as important indicators for predicting where bald cypress seedlings will establish. Further, these results demonstrate the importance of considering both abiotic and biotic factors in the restoration of bald cypress.
Pteropus lombocensis Dobson 1878
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus lombocensis

description: Pteropus lombocensis Dobson, 1878. Cat. Chiroptera Brit. Mus., p. 34. TYPE LOCALITY: Indonesia, Lesser Sunda Isis, Lombok Isl. DISTRIBUTION: Alor Isl (near Timor), Lombok, and Flores (Indonesia). STATUS: CITES - Appendix II. SYNONYMS: heudei, solitarius.
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 148, DOI: 10.5281/zenodo.7353060
Equivalence groupoid of generalized potential Burgers equations
Creators: name: Pocheketa, Oleksandr A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 35A30 (Primary), 35C05, 35K59, 35K05 (Secondary)

description: We find the equivalence groupoid of a~class of $(1+1)$-dimensional second-order evolution equations, which are called generalized potential Burgers equations. This class is related via potentialization with two classes of variable-coefficient generalized Burgers equations. Its equivalence groupoid is of complicated structure and is described via partitioning the entire class into three normalized subclasses such that there are no point transformations between equations from different subclasses. For each of these subclasses we construct its equivalence group of an appropriate kind.
Investigation of the Micro-Climate of Microcrystalline Silicon-Modules and CIGS-Modules and its Impact on Potential-Induced Degradation
Creators: name: Fokuhl, E.
name: Wesselak, V.
name: Voswinckel, S.
name: Manz, P.
name: Trautmann, B.
name: Schmidt, C.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2503-2507
description: Potential-induced degradation (PID) is caused by a potential difference between module-junction and
ground which leads to a transfer of charges. The magnitude of these leakage currents depends to a large extent on
temperature and relative humidity on the module surface. Especially rain and condensation have a high impact on the
charge transfer. Previous calculations using the Magnus-Formula and a homogeneous temperature are not sufficient to
describe the micro-climate of modules in accelerated aging tests if quantitative predictions shall be made concerning the
long-time performance of new product lines. Therefore further investigations have been done in the climatic chamber.
Hierarchy of Genuine Tripartite Non-Gaussian Entanglement
Creators: name: Zhang, Da
name: Barral, David
name: Zhang, Yanpeng
name: Xiao, Min
name: Bencheikh, Kamel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Triple-photon states generated by three-mode spontaneous parametric down-conversion are the paradigm of unconditional non-Gaussian states, essential assets for quantum advantage. How to fully characterize their non-Gaussian entanglement remains however elusive. We propose here a hierarchy of sufficient and necessary conditions for separability of the broad family of spontaneously-generated three-mode non-Gaussian states. We further derive state-of-the-art conditions for genuine tripartite non-Gaussian entanglement, the strongest class of entanglement. We apply our criteria to triple-photon states revealing that they are fully inseparable and genuinely entangled in moments of order 3n. Our results establish a systematic framework for characterizing the entanglement of triple-photon states and thus fostering their application in quantum information protocols.
Pteropus lylei K. Andersen 1908
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus lylei

description: Pteropus lylei K. Andersen, 1908. Ann. Mag. Nat. Hist., ser. 8, 2:367. TYPE LOCALITY: Thailand, Bangkok. DISTRIBUTION: Thailand, Vietnam. STATUS: CITES - Appendix II.
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 148, DOI: 10.5281/zenodo.7353060
Influence of MVTR of Air-Side Layer of Backsheet on the Reliability of Backsheet Itself and Consequently on the Reliability of Solar PV Modules
Creators: name: Singh, R.
name: Singh, A.K.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2482-2484
description: Moisture Vapour Transmission Rate (MVTR), also called Water Vapour Transmission Rate (WVTR)
of air-side layer of PV Backsheets plays a significant role on the performance and durability of Backsheet and
consequently on the reliability of the PV module. This study reveals that the performance and the reliability of
photovoltaic modules are highly influenced by the MVTR of the air-side layer of Backsheet if the core layer of the
Backsheet is Polyester based.
The Backsheet manufactured using air-side Hydrolysed PET (HPET) layer having lower MVTR value shows less
hydrolytic degradation of the core layer PET as compared to Backsheet made of Fluoro materials as air-side layers
having higher MVTR value. Backsheets with air-side layer having lowest MVTR shows lowest degree of hydrolytic
degradation irrespective of types of Backsheets. The Backsheet with structure HPET / PET / Priming layers shows
better hydrolytic resistance than all remaining Fluoro based structures considered in the study. The Solar PV module
having HPET / PET / Priming layer Backsheet showed lowest power loss (max 3%) up to damp heat 2500hrs.
Whereas, the Modules made using Backsheet structure with Fluoro polymer as airside layer having higher MVTR
value (Fluoro-2 / PET / Priming layer & Fluoro-3 / PET / Priming layer) showed more power loss ( >5%) after the
DHT of 2500hrs. Cracking of core layer PET was observed in the modules made using Backsheets with Fluoro
materials. Backsheet structure with Fluoro-1 polymer having lower MVTR value (Fluoro-1 / PET / Priming layer)
showed power loss < 4 % after the DHT of 2500hrs. In this study we found that when Fluoro materials are used in the
Backsheet as sir-side layer, it remains stable itself for a longer time but due to its poor moisture barrier, the core layer
PET of the Backsheet gets hydrolysed faster with time. This phenomenon of hydrolysis reduces the mechanical
strength of the core layer PET causing mechanical cracks. Once the cracks in the Backsheet are developed, it leaves
almost no protection towards moisture ingress from climate to the module, causing rapid degradation in the cells and
interconnects reducing the performance and the durability of the module.
A Workable Alternative for Achieving Sustainable Growth in the Service Industry for the Case of Youth-owned Businesses in Kelantan Peninsula of Malaysia
Creators: name: Sathiswaran Uthamaputhran,  Kiran Kumar Thoti, Solomon Gbene Zaato, Hazriah Binti Hasan1,  Yusrinadini Zahirah Binti Md. Isa
Publisher: name: TuEngr Group
Year: 2022
Subjects: Economics, Business, Management, Service Sector

description: International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies, 13, 6, 13A6B: 1-11
Crystalline spin-orbit interaction and the Zeeman splitting in Pb$_{1-x}$Sn$_x$Te
Creators: name: Hayasaka, Hiroshi
name: Fuseya, Yuki
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The ratio of the Zeeman splitting to the cyclotron energy ($M=ΔE_Z / \hbar ω_c$), which characterizes the relative strength of the spin-orbit interaction in crystals, is examined for the narrow gap IV-VI semiconductors PbTe, SnTe, and their alloy Pb$_{1-x}$Sn$_x$Te on the basis of the multiband $k\cdot p$ theory. The inverse mass $α$, the g-factor $g$, and $M$ are calculated numerically by employing the relativistic empirical tight-binding band calculation. On the other hand, a simple but exact formula of $M$ is obtained for the six-band model based on the group theoretical analysis. It is shown that $M<1$ for PbTe and $M>1$ for SnTe, which are interpreted in terms of the relevance of the interband couplings due to the crystalline spin-orbit interaction. It is clarified both analytically and numerically that $M=1$ just at the band inversion point, where the transition from trivial to nontrivial topological crystalline insulator occurs. By using this property, one can detect the transition point only with the bulk measurements. It is also proposed that $M$ is useful to evaluate quantitatively a degree of the Dirac electrons in solids.
description: 9 pages, 3 figures
Modelling and Measuring the Performance of Textured Front Surfaces under Diffuse Radiation
Creators: name: Reiners, N.
name: Blieske, U.
name: Omidi, S.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2490-2494
description: The positive effect of textured front side encapsulants on the performance of solar modules can be
identified for direct radiation in outdoor measurements [1, 2] and in flasher measurements [3]. However, to simulate
the total increase in energy yield that can be achieved over a year by the implementation of different front side textures,
it is necessary to understand their performance under diffuse light conditions. Today there is no test method available
to measure the performance of solar modules under diffuse light conditions. Two different setups are proposed in this
research project. To evaluate these setups, two different textures were measured indoors and outdoors. One of the
textures was produced in a 3D printer to evaluate the option for rapid prototyping. None of the setups could fully
reproduce the diffuse light performance measured outside.
Pteropus macrotis Peters 1867
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus macrotis

description: Pteropus macrotis Peters, 1867. Monatsb. K. Preuss. Akad. Wiss. Berlin, 1867:327. TYPE LOCALITY: Indonesia, Aru Isis, Wokam Isl. DISTRIBUTION: New Guinea; Aru Isis (Indonesia). STATUS: CITES - Appendix II; IUCN - Indeterminate. SYNONYMS: epularius, insignis.
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 148, DOI: 10.5281/zenodo.7353060
Outdoor PID Acceleration Testing in Japan: Effects of Regular Wetting and Interruption
Creators: name: Sakurai, K.
name: Morinaga, R.
name: Sato, R.
name: Akitomi, M.
name: Masuda, A.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2513-2514
description: We have conducted an outdoor PID acceleration test (OPAT) under regular water spraying and voltage
application of -1000V in Tosu, Japan. In-house assembled, PID-susceptible full-size multicrystalline silicon modules
were used. The modules have degraded up to 10 times faster compared to tests with no additional water spraying.
With no water spraying and no voltage application, the modules have recovered during outdoor exposure.
A Clustering Approach for PV Module Sampling
Creators: name: Corbellini, G.
name: Dittmann, S.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Quality and Sustainability in Manufacturing and Recycling

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2453-2456
description: To accomplish the quality of overall installation, it is fundamental to guarantee the quality of the batch of
PV modules to be installed as the plant will clearly benefit from high quality modules and low module performance
discrepancies in order to reduce the electrical mismatch effects.
For this purpose SUPSI developed a new procedure to select the modules to be tested in order to guarantee a statistical
significance of the testing and cover possible modules` subgroup performance discrepancies.
This tool was designed and developed during the project ‘Performance Plus - Tools for Enhanced Photovoltaic System
Performance - Grant agreement no: 308991’ inside the Framework Program 7 backed by the European Commission.
What can we learn from the directed flow in heavy-ion collisions at BES RHIC energies?
Creators: name: Ivanov, Yu. B.
name: Soldatov, A. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Analysis of directed flow ($v_1$) of protons, antiprotons and pions in heavy-ion collisions is performed in the range of collision energies $\sqrt{s_{NN}}$ = 2.7--39 GeV. Simulations have been done within a three-fluid model employing a purely hadronic equation of state (EoS) and two versions of the EoS with deconfinement transitions: a first-order phase transition and a smooth crossover transition. The crossover EoS is unambiguously preferable for the description of the most part of experimental data in this energy range. The directed flow indicates that the crossover deconfinement transition takes place in semicentral Au+Au collisions in a wide range of collision energies 4 \lsim\sqrt{s_{NN}}\lsim$ 30 GeV. The obtained results suggest that the deconfinement EoS's in the quark-gluon sector should be stiffer at high baryon densities than those used in the calculation. The latter finding is in agreement with that discussed in astrophysics.
description: 6 pages, 4 figures, the paper extends results of arXiv:1412.1669
Ground-State Energy as a Simple Sum of Orbital Energies in Kohn-Sham Theory: A Shift in Perspective through a Shift in Potential
Creators: name: Levy, Mel
name: Zahariev, Federico
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: It is observed that the exact interacting ground-state electronic energy of interest may be obtained directly, in principle, as a simple sum of orbital energies when a universal density-dependent term is added to $w\left(\left[ ρ\right];\mathbf{r} \right)$, the familiar Hartree plus exchange-correlation component in the Kohn-Sham effective potential. The resultant shifted potential, $\bar{w}\left(\left[ ρ\right];\mathbf{r} \right)$, actually changes less on average than $w\left(\left[ ρ\right];\mathbf{r} \right)$ when the density changes, including the fact that $\bar{w}\left(\left[ ρ\right];\mathbf{r} \right)$ does not undergo a discontinuity when the number of electrons increases through an integer. Thus the approximation of $\bar{w}\left(\left[ ρ\right];\mathbf{r} \right)$ represents an alternative direct approach for the approximation of the ground-state energy and density.
description: 15 pages, 1 table