cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modelling and Validation of Spatial Irradiance Characteristics for Localised Irradiance Fluctuations and Enhancements
Creators: name: Weigl, T.
name: Nagl, L.
name: Weizenbeck, J.
name: Zehner, M.
name: Augel, M.
name: Giesler, B.
name: Becker, G.
name: Mayer, O.
name: Betts, T.R.
name: Gottschalg, R.
Publisher: name: WIP
Year: 2012
Subjects: PV Systems
Large PV Power Plants and Distributed PV: System Aspects and Grid Connection

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3801-3804
description: Irradiation peaks were identified during the analysis of high temporal resolution measurement data of several locations demonstrating that the effects of irradiance enhancements (IE) on photovoltaic (PV) systems cannot be simulated by the use of hourly measured irradiation data. For systems of significant spatial expanse data of a single sensor is also not sufficient as parts of the systems will operate under IE while others will be clouded. This paper focuses on spatial aspects of this, i.e. IE effects across the expanse of the PV system. The method of deriving the cloud velocity vector from irradiation measurement data sets by tracking the movement of irradiation minima across the sensor plane is
presented. This cloud velocity vector is used generating an accurate irradiation map of sufficient resolution from a few sensors. The resolution of the generated irradiance map is sufficient to generate irradiances on each module in large grid connected PV-systems and the mismatching losses can be investigated. Same applies to distribution networks, in which the transformer power on a connection point of several small PV systems can accurately be simulated.
SUSY GUT Model Building
Creators: name: Raby, Stuart
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I discuss an evolution of SUSY GUT model building, starting with the construction of 4d GUTs, to orbifold GUTs and finally to orbifold GUTs within the heterotic string. This evolution is an attempt to obtain realistic string models, perhaps relevant for the LHC. This review is in memory of the sudden loss of Julius Wess, a leader in the field, who will be sorely missed.
description: 24 pages, 14 figures, lectures given at PiTP 2008, Institute for Advanced Study, Princeton, to be published in the European Physical Journal C
Musterleitlinie für Forschungsdatenmanagement (FDM) an Hochschulen und Forschungseinrichtungen
Creators: name: Grasse, Marleen
name: López, Ania
name: Winter, Nina
Publisher: name: Zenodo
Year: 2018
Subjects: Forschungsdatenmanagement
Research Data Management
Research Data Policy
FDM-Leitlinie
Forschungsdaten
Research Data
FDM
RDM

description: Materialien zur Implementierung einer Leitlinie für Forschungsdatenmanagement an Hochschulen und Forschungseinrichtungen Musterleitlinie Quick-Start-Guide Postkarte Leitlinien bilden eine wichtige Grundlage für den Umgang mit Forschungsdaten. Sie beschreiben die Ziele und Maßnahmen des Forschungsdatenmanagement an einer Institution und legen Verantwortlichkeiten fest. Die vorliegende Musterleitlinie soll bei der Einführung einer Leitlinie an Hochschulen und Forschungseinrichtungen unterstützen. Die Musterleitlinie wurde erstellt in Anlehnung an: Model Policy for Research Data Management (RDM) at Research Institutions/
 Institutes, https://doi.org/10.14324/000.learn.26. --- Material for the implementation of a RDM policy at higher education and research institutions Model policy Quick-Start-Guide Postcard Policies are an important basis for the handling of research data. They describe goals and measures of RDM at an institution and define responsibilities. The model policy is supposed to support the implementation of a RDM policy at higher education and research instituions. The model policy was created following the Model Policy for Research Data Management (RDM) at Research Institutions/
 Institutes, https://doi.org/10.14324/000.learn.26.
description: {"references": ["Model Policy for Research Data Management (RDM) at Research Institutions/Institutes. In: LEARN, ., (ed.) LEARN Toolkit of Best Practice for Research Data Management. (pp. 133-136). Leaders Activating Research Networks"]}
Spectral Analysis of Various Thin-Film Modules Using High Precision Spectral Response Data and Solar Spectral Irradiance Data
Creators: name: Schweiger, M.
name: Ulrich, M.
name: Nixdorf, I.
name: Rimmelspacher, L.
name: Jahn, U.
name: Herrmann, W.
Publisher: name: WIP
Year: 2012
Subjects: Components for PV Systems
PV Modules

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3284-3290
description: This paper presents the results of high-precision indoor and outdoor measurements of different PV module
technologies performed at the TÜV Rheinland PV test laboratory, Cologne, from May 2010 to September 2012.
Modules based on CdTe, CI(G)S, a-Si, a-Si/μ-Si, a-Si/a-Si and c-Si (mono and poly) semi-conductors were
analysed non-destructively as to their spectral behaviour by means of a new test apparatus and differences
specific to the technology determined. Following indoor testing the modules were exposed outdoors for one year,
with the maximum power point PMPP and the I/V-curves continually measured with the corresponding solar
spectrum. This extensive database allows a description of the spectral conditions at the test-site in Cologne with
the APE method. As the next step we analysed the module performance and energy yield for the different
technologies. We theoretically calculated the photo-current by integrating the spectral response data and spectral
measurements and compared the results against the data from real outdoor measurements corrected for
temperature and irradiance.
Verification of the Installed Peak Power in the Commissioning Tests of Large PV Plants
Creators: name: Coello, J.
name: Domínguez, F.
Publisher: name: WIP
Year: 2012
Subjects: PV Systems
Large PV Power Plants and Distributed PV: System Aspects and Grid Connection

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3983-3985
description: This article presents a methodology to verify the peak power of the generator (PV modules) in the
commissioning test of large scale PV plants. This procedure has been implemented in the commissioning of many
large PV plants from 2008 in Spain and Italy with very good results. This methodology is a very useful tool to control
the quality of PV plants and enables, when is included in the construction contracts, adjust the final price to the real
installed peak power.
Simple Low-Cost Metallization Scheme to Improve the Efficiency of Epitaxial Emitter Solar Cells with Nanowire Texturization
Creators: name: Lai, D.
name: Heng, S.C.
name: Togonal, A.
name: Tan, Y.H.
name: He, L.
name: Tan, C.S.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 1648-1650
description: We demonstrate a simple metallization scheme to form the buried contact on nanowire-textured
epitaxial emitter (epi-emitter). This method involves using a stencil mask and a mechanical brush to severe the
unwanted silicon nanowires (SiNWs) before evaporating the front metallization with the stencil template. As
compared to the metallization deposited over the SiNWs cell, the SiNWs cell with buried contact exhibits both higher
short-circuit current density (Jsc) and open-circuit voltage (Voc), owing to lower contact recombination at the front
side metallization. We also find that annealing the SiNWs cell with buried contact in forming gas (5%H2 + 95%N2)
increases the Jsc due to passivation of the dislocation threads within the deep emitter and improved contact resistance.
However, a lower observed power conversion efficiency (PCE) can be attributed to the reduction of the thin chemical
silicon dioxide (SiO2) formed by the concentrated nitric acid (HNO3), thus resulting in poor surface passivation of the
SiNWs.
Extended envelopes around Galactic Cepheids. V. Multi-wavelength and time-dependent analysis of IR excess
Creators: name: Gallenne, A.
name: Mérand, A.
name: Kervella, P.
name: Pietrzyński, G.
name: Gieren, W.
name: Hocdé, V.
name: Breuval, L.
name: Nardetto, N.
name: Lagadec, E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We aim to investigate the IR excess of 45 MW Cepheids combining different observables to constrain the presence of CSE. We used the SPIPS algorithm, a robust implementation of the parallax-of-pulsation method that combines photometry, angular diameter, stellar effective temperature, and RV measurements in a global modelling of the pulsation. We obtained new photometric measurements at mid-IR with the VLT/VISIR complemented with literature data. We then compared the mean magnitude from 0.5$μ$m to 70$μ$m with stellar atmosphere models to infer the IR excess, which we attribute to the presence of a CSE. We report that at least 29% of our sample have a detected IR excess. We estimated a mean excess of 0.08mag in K and 0.13mag in N. Other Cepheids possibly have IR excess, but they were rejected due to their low detection level compared to a single-star model. We do not see any correlation between the IR excess and the pulsation period as previously suspected for MW Cepheids, but a rather constant trend. We also do not find any correlation between the CO absorption and the presence of a CSE, but rather with the stellar effective temperature, which confirms that the CO features previously reported are mostly photospheric. No bias caused by the presence of the CSE is detected on the average distance estimates from a SPIPS analysis with a fitted colour excess. We also do not find correlation between the presence of IR excess and the evolution stage. We report a fraction of 29% of Cepheids with an IR excess likely produced by the CSE. Longer period Cepheids do not exhibit greater excess than short periods as previously suspected from observations and theoretical dusty-wind models. Other mechanisms such as free-free emission, among others, may be at the origin of their formation. We also show that not fitting the colour excess leads to a bias on the distance estimates in our Galaxy.
description: Accepted for publication in A&A
Just how different are SU(2) and SU(3) Landau-gauge propagators in the IR regime?
Creators: name: Cucchieri, A.
name: Mendes, T.
name: Oliveira, O.
name: Silva, P. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The infrared behavior of gluon and ghost propagators in Yang-Mills theories is of central importance for understanding quark and gluon confinement in QCD. While simulations of pure SU(3) gauge theory correspond to the physical case in the limit of infinite quark mass, the SU(2) case (i.e. pure two-color QCD) is usually employed as a simplification, in the hope that qualitative features be the same as for the SU(3) case. Here we carry out the first comparative study of lattice (Landau) propagators for these two gauge groups. Our data were especially produced with equivalent lattice parameters in order to allow a careful comparison of the two cases. We find very good agreement between SU(2) ans SU(3) propagators, showing that in the IR limit the equivalence of the two cases is quantitative, at least down to about 1 GeV. Our results suggest that the infrared behavior of these propagators is independent of the gauge group SU(N_c), as predicted by Schwinger-Dyson equations.
description: 5 pages, 1 table, 4 figures; modified title, abstract and text; added references; to appear in Phys. Rev. D;
Diffuse Irradiance Influence on PV Module Performance: User Standpoint Analysis
Creators: name: Lagorse, J.
name: Robineau, J.-L.
name: Verdier, I.
name: Guichard, M.
Publisher: name: WIP
Year: 2012
Subjects: Components for PV Systems
PV Modules

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3291-3293
description: Veolia Environnement is a major international player in energy and environmental management
services. Renewable energy sources, such as photovoltaic, play a key role in its strategy. In order to test and compare
different PV technologies, a test-platform has been built by Veolia’s Research and Innovation department. One of the
studies was aimed at observing the influence of diffuse irradiation on the PV modules’ performance. In a first part,
this paper describes the methodology used to observe the influence of diffuse irradiation on PV module performance.
In a second part, the results are discussed. The influence of diffuse irradiation was observed for every module,
including thin films technologies.
Soft Walks: Real-Time, Two-Ways Interaction between a Character and Loose Grounds
Creators: name: Paliard, Chloé
name: Alvarado, Eduardo
name: Rohmer, Damien
name: Cani, Marie-Paule
Publisher: name: arXiv
Year: 2021
Subjects: subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: When walking on loose terrains, possibly covered with vegetation, the ground and grass should deform, but the character's gait should also change accordingly. We propose a method for modeling such two-ways interactions in real-time. We first complement a layered character model by a high-level controller, which uses position and angular velocity inputs to improve dynamic oscillations when walking on various slopes. Secondly, at a refined level, the feet are set to locally deform the ground and surrounding vegetation using efficient procedural functions, while the character's response to such deformations is computed through adapted inverse kinematics. While simple to set up, our method is generic enough to adapt to any character morphology. Moreover, its ability to generate in real time, consistent gaits on a variety of loose grounds of arbitrary slope, possibly covered with grass, makes it an interesting solution to enhance films and games.
Quasi-3D Modelling of Concentrating Photovoltaic Solar Cell and Light Emitting Diode Front Contact Grid
Creators: name: Acciarri, M.
name: Chemelli, C.
name: Fraschini, F.
name: Grilli, E.
name: Martinelli, A.
name: Novello, N.
name: Timò, G.
Publisher: name: WIP
Year: 2012
Subjects: Material Studies, New Concepts and Ultra-High Efficiency
Fundamental Material Studies

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 503-508
description: Photovoltaic concentrating cells (CPV) and light emitting devices (LED) present analogous problems
in the optimization of the front contact metal grid. In fact, both devices have to manage high current densities, can
present similar semiconductor structures based on III-V compounds, have small dimensions and similar
manufacturing process. In both cases, devices efficiencies maybe dramatically affected by front grid design, by
operative conditions and even by fabrication defects, while a well optimized front grid could minimize the effects of
imperfection in the device or assembly realization. A distributed network Quasi-3D model based on LT-Spice
platform ((GREAT: Grid high-Resolution Electrical Analysis Tool)) has been implemented. Assuming that the
device is constituted by three main horizontal planes: topmost grid layer, emitter layer and substrate layer, the model
is able to simulate the electrical behavior of CPV and LED devices with metal front grids, with spatial resolution in
the micrometer range. Different grid geometries and shapes have been compared, in order to: (I) optimize device
efficiency, (II) minimize the impact on photovoltaic performances of non-uniform illumination of the CPV cell, (III)
mitigate the effect of accidental grid finger interruption on current distribution in both CPV and LED devices.
Lessons Learned on Power Management and Voltage Regulation in Large Photovoltaic Power Plants
Creators: name: Johnson, L.
name: Sivakumar, S.
name: Lian, J.
Publisher: name: WIP
Year: 2012
Subjects: PV Systems
Large PV Power Plants and Distributed PV: System Aspects and Grid Connection

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3750-3757
description: Photovoltaic power plants are increasingly necessitating capabilities beyond normal real power
generation and monitoring. Based on interconnection agreements or regional requirements, a grid tied photovoltaic
power plant may need to provide automatic voltage regulation or power factor control, and/or real power curtailment
controls at the point of interconnection (POI). This paper provides an analysis of reactive power scheduling process
through distributed PV inverters in the context of large-scale PV power plants in facilitating such grid support
functions. It also discusses design tradeoffs that need to be considered to effectively meet the functional, performance,
and cost objectives in meeting grid support functions. Examples and representative case studies are presented to
highlight the characteristics and limitations of such tradeoffs, and to demonstrate the effectiveness of the proposed
design process. In addition, this paper describes key grid support functions including AVR, power factor control,
closed-loop active power curtailment, ramp rate control, and battery storage integration control, developed and
implemented by SunPower in various PV power plants, and discusses the results and lessons learned.
Relativistic Aberration for Accelerating Observers
Creators: name: Beig, Robert
name: Heinzle, J. Mark
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Physics (physics.class-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the effects of the aberration of light for a uniformly accelerating observer. The observer we consider is initially at rest with respect to a luminous spherical object--a star, say--and then starts to move away with constant acceleration. The main results we derive are the following: (i) The observer always sees an initial increase of the apparent size of the object; (ii) The apparent size of the object approaches a non-zero value as the proper time of the observer goes to infinity. (iii) There exists a critical value of the acceleration such that the apparent size of the object is always increasing when the acceleration is super-critical. We show that, while (i) is a purely non-relativistic effect, (ii) and (iii) are effects of the relativistic aberration of light and are intimately connected with the Lorentzian geometry of Minkowksi spacetime. Finally, the examples we present illustrate that, while more or less negligible in everyday life, the three effects can be significant in the context of space-flight.
description: 7 figures; subject: special relativity; pedagogical article; replaced to match version appearing in Am. J. Phys
Phenomenology of Hybrid Scenarios of Neutrino Dark Energy
Creators: name: Antusch, Stefan
name: Das, Subinoy
name: Dutta, Koushik
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the phenomenology of hybrid scenarios of neutrino dark energy, where in addition to a so-called Mass Varying Neutrino (MaVaN) sector a cosmological constant (from a false vacuum) is driving the accelerated expansion of the universe today. For general power law potentials we calculate the effective equation of state parameter w_{eff}(z) in terms of the neutrino mass scale. Due to the interaction of the dark energy field (acceleron) with the neutrino sector, w_{eff}(z) is predicted to become smaller than -1 for z>0, which could be tested in future cosmological observations. For the considered scenarios, the neutrino mass scale additionally determines which fraction of the dark energy is dynamical, and which originates from the cosmological constant like vacuum energy of the false vacuum. On the other hand, the field value of the acceleron field today as well as the masses of the right-handed neutrinos, which appear in the seesaw-type mechanism for small neutrino masses, are not fixed. This, in principle, allows to realise hybrid scenarios of neutrino dark energy with a high-scale seesaw where the right-handed neutrino masses are close to the GUT scale. We also comment on how MaVaN Hybrid Scenarios with high-scale seesaw might help to resolve stability problems of dark energy models with non-relativistic neutrinos.
description: 22 pages, 5 figures; references and comments added; version to be published in JCAP
Taxation of Cryptocurrencies in India: Evolving Landscape and Legal Framework
Creators: name: Dr. Kiran Kumar M
name: Mr. Sridharan J
name: Mr. Ajitesh Priyadarshi
name: Mr. Joshua Melvin Raj J
Publisher: name: Zenodo
Year: 2025
Subjects: Crypto currency Taxation, Investment Choices, Comprehension, Regulatory Issues, Financial Knowledge.

description: Crypto currency is a popular investment vehicle, but crypto currency taxation is contentious and uncertain among Indian investors. The government's move to tax crypto currencies through a flat tax on crypto currency profits has questioned its impact on investment patterns and compliance. The current study investigates the awareness level, perceived difficulties, and the effect of taxation on investment choice among MBA students of various specializations. According to statistical analysis, the research has established considerable differences in the level of awareness, the impact of investment experience on perceptions regarding taxes, and the correlation between tax awareness and investment. Research shows that awareness is largely determined by the subject of study, and students majoring in finance are more tax-aware of taxation policies. But tax problems challenge perceptions similarly for every class of investors, which is in turn an underlying problem of rule clarity and compliance. While tax impacts investment decision-making, it is but one among many with market fluctuations and risk tolerance being examples of significant influences. These conclusions necessitate improved investor education, clear tax regulations, and synchronized law that facilitates cooperation without reducing participation in markets.
Nonlocality in Quantum Gravity and the Breakdown of Effective Field Theory
Creators: name: Valdés-Meller, Nicolás
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We argue that quantum gravity is nonlocal, first by recalling well-known arguments that support this idea and then by focusing on a point not usually emphasized: that making a conventional effective field theory (EFT) for quantum gravity is particularly difficult, and perhaps impossible in principle. This inability to realize an EFT comes down to the fact that gravity itself sets length scales for a problem: when integrating out degrees of freedom above some cutoff, the effective metric one uses will be different, which will itself re-define the cutoff. We also point out that even if the previous problem is fixed, naively applying EFT in gravity can lead to problems - we give a particular example in the case of black holes.
description: Essay received an Honorable Mention in the 2021 Gravity Research Foundation Essays Competition. Comments are welcome
Synthesis of 3-indolylacetamide derivatives and evaluation of their plant growth regulator activity
Creators: name: Waya S. Phutdhawong
name: Weerachai Phutdhawong
name: Chanakan Winyakul
Publisher: name: Maejo University
Year: 2014
Subjects: 3-indolylacetamides,indole-3-acetic acid,plant growth regulator,rice seedling

description: 2, 8, Maejo International Journal of Science and Technology
Conceptual design of heterogeneous azeotropic distillation process for ethanol dehydration using 1-butanol as entrainer
Creators: name: Paritta Prayoonyong
Publisher: name: Maejo University
Year: 2014
Subjects: ethanol dehydration,heterogeneous azeotropic distillation,1-butanol,entrainer

description: 3, 8, Maejo International Journal of Science and Technology
Taxation of Cryptocurrencies in India: Evolving Landscape and Legal Framework
Creators: name: Dr. Kiran Kumar M
name: Mr. Sridharan J
name: Mr. Ajitesh Priyadarshi
name: Mr. Joshua Melvin
name: Raj J
Publisher: name: Zenodo
Year: 2025
Subjects: Crypto currency Taxation, Investment Choices, Comprehension, Regulatory Issues, Financial Knowledge.

description: Crypto currency is a popular investment vehicle, but crypto currency taxation is contentious and uncertain among Indian investors. The government's move to tax crypto currencies through a flat tax on crypto currency profits has questioned its impact on investment patterns and compliance. The current study investigates the awareness level, perceived difficulties, and the effect of taxation on investment choice among MBA students of various specializations. According to statistical analysis, the research has established considerable differences in the level of awareness, the impact of investment experience on perceptions regarding taxes, and the correlation between tax awareness and investment. Research shows that awareness is largely determined by the subject of study, and students majoring in finance are more tax-aware of taxation policies. But tax problems challenge perceptions similarly for every class of investors, which is in turn an underlying problem of rule clarity and compliance. While tax impacts investment decision-making, it is but one among many with market fluctuations and risk tolerance being examples of significant influences. These conclusions necessitate improved investor education, clear tax regulations, and synchronized law that facilitates cooperation without reducing participation in markets.
The digital book: a tool to help university students succeed?
Creators: name: BOUMAZGUIDA, KARIM
name: TEMPERMAN, GAËTAN
name: DE LIEVRE (Belgium), BRUNO
Publisher: name: Review of Science, Mathematics and ICT Education
Year: 2021
Subjects: E-book, communication, experimental design, help for success, university

description: In this paper, we evaluate the effects of two modalities of use of digital books by university students: discovery of the digital book before the course vs. discovery of it after the course. During the experiment, we recorded the traces of the students’ activity in the digital book. Our study revolves around 4 research questions (Q1, Q2, Q3 Q4). If students make significant progress during the pedagogical sequence (Q1), it highlights that moment of use e-book does not have an effect on the students’ performances (Q2). However, some student behaviours in the eBook vary depending on when the eBook is used (Q3). A regression analysis between these behaviours (process) and learning gains (performance) shows that consulting additional info/glossary, expansion slideshows and verification of responses would be success factors (Q4).
description: Review of Science, Mathematics and ICT Education, Forthcoming papers
Structural Challenges in Multijunction Solar Cells for Ultra-High CPV
Creators: name: Espinet González, P.
name: Barrigón, E.
name: Ochoa, M.
name: Barrutia, L.
name: Orlando, V.
name: Algora, C.
name: Rey-Stolle, I.
Publisher: name: WIP
Year: 2012
Subjects: Material Studies, New Concepts and Ultra-High Efficiency
Terrestrial Concentrator Systems

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 146-149
description: The paths towards high efficiency multijunction solar cells operating inside real concentrators at
ultra high concentration (>1000 suns) are described. The key addressed factors comprehend: 1) the development
of an optimized tunnel junction with a high peak current density (240 A/cm2) to mitigate the non-uniform light
profiles created by concentrators, 2) the inclusion of highly conductive semiconductor lateral layers to minimize
the effects of the non-uniform light profiles in general, and the chromatic aberration in particular; and 3) an
adequate design of reliability studies to test multijunction solar cells for real operation conditions in order to
determine the fragile parts in the device and improve them. These challenges are faced by means of experimental
and theoretical investigation using a quasi-3D distributed circuital model.
High Productivity Ion Implantation for 19% Efficient Industrial Silicon Solar Cells
Creators: name: Hieslmair, H.
name: Mandrell, L.
name: Sullivan, J.
name: Chun, M.
name: Zhou, L.
name: Zhu, R.
name: Latchford, I.
name: Adibi, B.
name: Li, H.
name: Wang, J.
name: Lv, J.
name: Wang, A.
name: Zhao, J.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 1901-1905
description: In order to achieve grid parity and reduce the Levelized Cost Of Electricity (LCOE), future industrial solar cell
production will have to achieve higher efficiencies. In order to improve efficiencies of the current phosphorus emitter cells,
there is a focus on tailoring of the phosphorus profile, as well as improved uniformity, repeatability, and tailoring of the near
surface phosphorus dose. Ion implantation systems can provide these performance capabilities. Historically, productivity has
been an issue for ion implantation applied to solar cells. Intevac has developed a novel high productivity ion-implantation
tool capable of 2400 wafer per hour throughput for phosphorus and boron implants. With this tool, we demonstrate high
efficiency cells with improved blue response and narrower distribution of efficiencies over standard diffused phosphorus
emitter cells. We show average cell efficiencies of 18.8% with up to 19% cells in initial customer qualification tests of the
Intevac implantation tool. These efficiencies represent a clear performance improvement over diffusion. Further optimization
is expected to increase this improvement.
Three new lignanamides from the root of Lycium chinense with anti-inflammatory activity
Creators: name: Chen, Fang
name: Huang, Xiao-jun
name: Liang, Qiu-ping
name: Huang, Yuan-peng
name: Lan, Ting
name: Zhou, Guang-xiong
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Space Science
subject: Neuroscience
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology
subject: FOS: Biological sciences

description: Three new lignanamides, that is, a new lignanamide (1), and a pair of enantiomers (2a and 2b) were isolated from the EtOAc-soluble fraction of an EtOH extract of the root of Lycium chinense. The structures of these new compounds, including their absolute configuration, were established on the basis of HR-ESI-MS, NMR spectroscopic data and quantum chemical ECD calculations. Compound 2a showed significant anti-inflammatory activity in LPS-induced RAW 264.7 macrophages with the IC50 value of 10.77 ± 2.14 μM, comparing to that of positive control quercetin (17.21 ± 0.50 μM).
A classification of Lie algebras of pseudounitary groups in the techniques of Clifford algebras
Creators: name: Shirokov, Dmitry
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we present new formulas, which represent commutators and anticommutators of Clifford algebra elements as sums of elements of different ranks. Using these formulas we consider subalgebras of Lie algebras of pseudounitary groups. Our main techniques are Clifford algebras. We have find 12 types of subalgebras of Lie algebras of pseudounitary groups.
description: 18 pages
Josephson Current and Noise at a Superconductor-Quantum Spin Hall Insulator-Superconductor Junction
Creators: name: Fu, Liang
name: Kane, C. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study junctions between superconductors mediated by the edge states of a quantum spin Hall insulator. We show that such junctions exhibit a fractional Josephson effect, in which the current phase relation has a 4π, rather than a 2πperiodicity. This effect is a consequence of the conservation of fermion parity - the number of electrons modulo 2 - in a superconducting junction, and is closely related to the Z_2 topological structure of the quantum spin Hall insulator. Inelastic processes, which violate the conservation of fermion parity, lead to telegraph noise in the equilibrium supercurrent. We predict that the low frequency noise due these processes diverges exponentially with temperature T as T -> 0. Possible experiments on HgCdTe quantum wells will be discussed.
description: 4 pages, 2 figures
Effects of fluctuation on alpha-omega dynamo models
Creators: name: Proctor, Michael R. E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyse the role of a fluctuating alpha-effect in alpha-omega dynamo models, and show that there is a mechanism for magnetic field generation, valid at large scale separation, deriving from the interaction of mean shear and a fluctuating alpha-effect. It is shown that this effect can act as a dynamo even in the absence of a mean alpha-effect, and that the timescale for dynamo waves is strongly affected by the presence of fluctuations.
description: 4 pages, 3 figures
Valvi et al. 2021 SUPPLEMENTARY DATA_PFAS and glucose homeostasis in young adults
Creators: name: Valvi, Dania
Publisher: name: figshare
Year: 2021
Subjects: subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Supplemental to manuscript: Prospective associations between life-course exposure to perfluoroalkyl substances and markers of glucose homeostasis in early adulthood. 2021 - by Valvi D, Hojlund K, Coull BA, Nielsen F, Weihe P and Grandjean P.
Additional file 2 of The cerebral mechanism underlying the acupoints with specific effect for gallbladder stone disease: protocol for a randomized controlled task-fMRI trial
Creators: name: Sun, Ning
name: Zhou, Yuan-Fang
name: Zhou, Jie
name: Zuo, Wen-Wei
name: Ye, Xiang-Yin
name: Deng, Xiao-Dong
name: Li, Zheng-Jie
name: Cheng, Shi-Rui
name: Qu, Yu-Zhu
name: Zhou, Jun
name: Sun, Rui-Rui
name: Liang, Fan-Rong
Publisher: name: figshare
Year: 2021
Subjects: Medicine
Neuroscience
Biological Sciences not elsewhere classified
Science Policy
Computational Biology

description: Additional file 2. Pictures selected for the food-cue task.
Peak energy of the prompt emission of long Gamma Ray Bursts vs their fluence and peak flux
Creators: name: Nava, Lara
name: Ghirlanda, Giancarlo
name: Ghisellini, Gabriele
name: Firmani, Claudio
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The spectral-energy and (luminosity) correlations in long GRBs are being hotly debated to establish, first of all, their reality against possible selection effects. These are best studied in the observer planes, namely the peak energy E_peak_obs vs the fluence F or the peak flux P. In a recent paper we started to attack this problem considering all GRBs with known z and spectral properties. Here we consider instead all bursts with known E_peak_obs, irrespective of z, adding to those a sample of 100 faint BATSE bursts representative of a larger population. This allows us to construct a complete, fluence limited, sample, to study the selection/instrumental effects. We found that fainter bursts have smaller E_peak_obs than those of bright events. As a consequence, the E_peak_obs of these bursts is correlated with the fluence, though with a slope flatter than that defined by bursts with z. Selection effects, which are present, are shown not to be responsible for the existence of such a correlation. About 6% of these bursts are surely outliers of the E_peak-E_iso correlation (updated to include 83 bursts), since they are inconsistent with it for any z. E_peak_obs correlates also with P, with a slope similar to the E_peak-L_iso correlation.In this case there is only one sure outlier.The scatter of the E_peak_obs-P correlation defined by the BATSE bursts of our sample is smaller than the E_peak_obs-F correlation of the same bursts, while for the bursts with known z the E_peak-E_iso correlation is tighter than the E_peak-L_iso one. Once a very large number of bursts with E_peak_obs and z will be available, we thus expect that the E_peak-L_iso correlation will be similar to that currently found, whereas it is likely that the E_peak-E_iso correlation will become flatter and with a larger scatter.
description: 17 pages, 8 figures. Accepted for publication in MNRAS
Optimizing CPV Systems for Thermal and Spectral Tolerance
Creators: name: Askins, S.
name: Victoria Pérez, M.
name: Herrero, R.
name: Domínguez, C.
name: Antón, I.
name: Sala, G.
name: Coutinho, A.
name: Amador, J.C.
Publisher: name: WIP
Year: 2012
Subjects: Material Studies, New Concepts and Ultra-High Efficiency
Terrestrial Concentrator Systems

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 194-198
description: Martifer Solar, in collaboration with the Instituto de Energía Solar of the Universidad Politécnica de
Madrid (IES) in Madrid, has developed a new CPV system. The IES provided the optical design and helped to select
component suppliers. The scope of the project is to provide a state-of-the-art system with minimal technical risk: i.e.
a well-executed rather than novel system that leveraged the capabilities of the current CPV supplier ecosystem. Early
on, a choice was made to use all-glass optics: a silicone-on-glass primary lens combined with a molded glass
secondary optical element (SOE) as the choice that would combine high performance and reliability. As recent work
has shown, when designing concentrator systems with SOG lens their high sensitivity to temperature must be taken
into account, and it is shown how an appropriate SOE can reduce this sensitivity. In this paper, we discuss best
practices for implementing concentrator systems using SOG primaries and DTIRC SOEs, and show how a range of
characterization techniques may be used to optimize them, including the study of their performance sensitivity to
focal distance and temperature. We discuss early performance results for the system and show how the final system
shows reduced thermal and spectral sensitivity compared to other systems.
Gauge/gravity duality and the interplay of various fractional branes
Creators: name: Argurio, Riccardo
name: Benini, Francesco
name: Bertolini, Matteo
name: Closset, Cyril
name: Cremonesi, Stefano
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider different types of fractional branes on a Z_2 orbifold of the conifold and analyze in detail the corresponding gauge/gravity duality. The gauge theory possesses a rich and varied dynamics, both in the UV and in the IR. We find the dual supergravity solution which contains both untwisted and twisted 3-form fluxes, related to what are known as deformation and N=2 fractional branes respectively. We analyze the resulting RG flow from the supergravity perspective, by developing an algorithm to easily extract it. We find hints of a generalization of the familiar cascade of Seiberg dualities due to a non-trivial interplay between the different types of fractional branes. We finally consider the IR behavior in several limits, where the dominant effective dynamics is either confining, in a Coulomb phase or runaway, and discuss the resolution of singularities in the dual geometric background.
description: 38 pages + appendices, 15 figures; v2: refs added and typos corrected
The fate of compound with AgF$_2$ plus AgO stoichiometry. A theoretical study
Creators: name: Domański, Mateusz
name: Grochala, Wojciech
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Metal oxyfluorides constitute a broad group of chemical compounds with rich spectrum of crystal structures and properties. Here we predict, based on evolutionary algorithm approach, the crystal structure and selected properties of Ag$_2$OF$_2$. This system may be considered as the 1 to 1 adduct of AgF$_2$ (i.e. an antiferromagnetic charge transfer positive U insulator) and AgO (i.e. a disproportionated negative U insulator). We analyze oxidation states of silver in each structure, possible magnetic interactions, as well as energetic stability. Prospect is outlined for synthesis of polytypes of interest using diverse synthetic approaches.
description: 45 pages including appendix, 15 figures including appendix, 3 tables including appendix, 28 computational cif files
D3.1 – Benchmark of markets and regulations for electricity, gas and heat and overview of flexibility services to the electricity grid
Creators: name: Cauret, Lionel
name: Belhomme, Regine
name: Raux-Defossez, Pauline
name: Eberbach, Jan
name: Eising, Manuel
name: Steinbeisser, Johannes
name: Pagan Carpe, Juana Maria
name: Nösperger, Stanislas
Publisher: name: Zenodo
Year: 2019
Subjects: Multi-Energy systems
Flexibility services
Electricity system
Markets and regulations
Gas system
Heating/cooling networks

description: This report is Deliverable D3.1 of the MAGNITUDE H2020 European project. This deliverable provides: An overview of the most relevant services towards the electricity system, which allow to increase the share of Renewable Energy Sources (RES) and enhance security of supply. These services also allow to increase the synergies and trading between electricity, gas and heat/cooling networks. This capability is futher studied in other Tasks and Work Packages of the project. For the most relevant services identified, a comparative analysis of the associated electricity markets and/or service provision mechanisms, including the following aspects: market mechanisms and regulations, products exchanged, remuneration and/or tariffs systems, main stakeholders involved and the key relationships. A comparative analysis of market segments for the gas and heat sectors, which can be affected by the service provision. To the extent possible, this analysis also covers the market mechanisms and regulations, the products exchanged, the remuneration and/or tariffs systems, the main stakeholders involved and the key relationships. The identification of market and regulatory barriers that might affect the provision of the services. The analysis is carried out for the project case study countries, namely Austria, Denmark, France, Italy, Spain, Sweden, and the United Kingdom. However, for this latter, only Great Britain is considered and not Northern Ireland.
Additional file 1 of RNAseq and quantitative proteomic analysis of Dictyostelium knock-out cells lacking the core autophagy proteins ATG9 and/or ATG16
Creators: name: Xiong, Qiuhong
name: Song, Ning
name: Li, Ping
name: Fischer, Sarah
name: Konertz, Roman
name: Wagle, Prerana
name: Glöckner, Gernot
name: Wu, Changxin
name: Eichinger, Ludwig
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1.
Closed non-abelian strings
Creators: name: Gustavsson, Andreas
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: With the aim of finding a framework for describing $(2,0)$ theory, we propose a non-abelian gerbe with surface holonomies that can parallel transport closed strings only.
description: 27 pages
Flexible CdTe Solar Cells by a Low Temperature Process on ITO/ZnO Coated Polymers
Creators: name: Salavei, A.
name: Rimmaudo, I.
name: Piccinelli, F.
name: Menossi, D.
name: Romeo, N.
name: Bosio, A.
name: Dharmadasa, R.
name: Romeo, A.
Publisher: name: WIP
Year: 2012
Subjects: Thin Film Solar Cells
CdTe, CIS and Related Ternary and Quaternary Thin Film Solar Cells

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 2825-2827
description: Second generation photovoltaics, thin film solar cells, have shown that it is possible to reduce dramatically the
cost per Watt compared to crystalline silicon, because of the lower production energy, the in-line fabrication and
the low amount of material needed. But another very important advantage of these technologies is that since they
are extremely thin devices if deposited on flexible substrates they also become flexible. In this paper we present
the study of a deposition process for flexible CdTe devices on ITO/ZnO coated polymers. Optimization of
fabrication process and technological aspects of the device are taken into account. Moreover laser scribing tests
on the different stacks deposited on the flexible substrates by fiber lasers are presented. The respective issues will
be discussed.
Monte Carlo study of Bose Laughlin wave function for filling factors 1/2, 1/4 and 1/6
Creators: name: Ciftja, Orion
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Strongly correlated two-dimensional electronic systems subject to a perpendicular magnetic field at lowest Landau level (LLL) filling factors: 1/2, 1/4 and 1/6 are believed to be composite fermion (CF) Fermi liquid phases. Even though a Bose Laughlin wave function cannot describe these filling factors we investigate whether such a wave function provides a lower energy bound to the true CF Fermi liquid energies. By using Monte Carlo simulations in disk geometry we compute the Bose Laughlin energies and compare them to corresponding results for the spin-polarized LLL CF Fermi liquid state and avalable data from literature.We find the unexpected result that, for filling factors 1/4 and 1/6, the Bose Laughlin ground state energy is practically identical to the true CF liquid energy while this is not the case at 1/2 where the Bose Laughlin ground state energy is sizeably lower than the energy of the CF Fermi liquid state.
description: 7 pages, 2 figures, 2 tables
Valvi et al. 2021 SUPPLEMENTARY DATA_PFAS and glucose homeostasis in young adults
Creators: name: Valvi, Dania
Publisher: name: figshare
Year: 2021
Subjects: subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Supplemental to manuscript: Life-course exposure to perfluoroalkyl substances in relation to markers of glucose homeostasis in early adulthood. 2021 - by Valvi D, Hojlund K, Coull BA, Nielsen F, Weihe P and Grandjean P.