cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Living with a Red Dwarf: Rotation and X-ray and Ultraviolet Properties of the Halo Population Kapteyn's Star
Creators: name: Guinan, Edward F.
name: Engle, Scott G.
name: Durbin, Allyn
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: As part of Villanova's Living with a Red Dwarf program, we have obtained UV, X-ray and optical data of the Population II red dwarf -- Kapteyn's Star. Kapteyn's Star is noteworthy for its large proper motions and high RV of ~+245 km s^-1. As the nearest Pop II red dwarf, it serves as an old age anchor for calibrating Activity/Irradiance-Rotation-Age relations, and an important test bed for stellar dynamos and the resulting X-ray -- UV emissions of slowly rotating, near-fully convective red dwarf stars. Adding to the notoriety, Kapteyn's Star has recently been reported to host two super-Earth candidates, one of which (Kapteyn b) is orbiting within the habitable zone (Anglada-Escude et al. 2014a, 2015). However, Robertson et al. (2015) questioned the planet's existence since its orbital period may be an artifact of activity, related to the star's rotation period. Because of its large Doppler-shift, measures of the important, chromospheric H I Lyman-alpha 1215.67A emission line can be reliably made, because it is mostly displaced from ISM and geo-coronal sources. Lyman-alpha emission dominates the FUV region of cool stars. Our measures can help determine the X-ray--UV effects on planets hosted by Kapteyn's Star, and planets hosted by other old red dwarfs. Stellar X-ray and Lyman-alpha emissions have strong influences on the heating and ionization of upper planetary atmospheres and can (with stellar winds and flares) erode or even eliminate planetary atmospheres. Using our program stars, we have reconstructed the past exposures of Kapteyn's Star's planets to coronal -- chromospheric XUV emissions over time.
description: 40 pages, 4 tables, 8 figures; accepted for publication in the Astrophysical Journal
A Bayesian analysis of the 69 highest energy cosmic rays detected by the Pierre Auger Observatory
Creators: name: Khanin, Alexander
name: Mortlock, Daniel J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The origins of ultra-high energy cosmic rays (UHECRs) remain an open question. Several attempts have been made to cross-correlate the arrival directions of the UHECRs with catalogs of potential sources, but no definite conclusion has been reached. We report a Bayesian analysis of the 69 events from the Pierre Auger Observatory (PAO), that aims to determine the fraction of the UHECRs that originate from known AGNs in the Veron-Cety & Veron (VCV) catalog, as well as AGNs detected with the Swift Burst Alert Telescope (Swift-BAT), galaxies from the 2MASS Redshift Survey (2MRS), and an additional volume-limited sample of 17 nearby AGNs. The study makes use of a multi-level Bayesian model of UHECR injection, propagation and detection. We find that for reasonable ranges of prior parameters, the Bayes factors disfavour a purely isotropic model. For fiducial values of the model parameters, we report 68% credible intervals for the fraction of source originating UHECRs of 0.09+0.05-0.04, 0.25+0.09-0.08, 0.24+0.12-0.10, and 0.08+0.04-0.03 for the VCV, Swift-BAT and 2MRS catalogs, and the sample of 17 AGNs, respectively.
MPPT Charge Controllers Characterization: Definition of Parameters and Test Procedures
Creators: name: Camino-Villacorta, M.
name: Egido Aguilera, M.A.
name: Díaz, P.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
Balance of System Components

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3664-3667
description: This paper presents a work in progress for the definition of specific laboratory procedures to test
battery charge controllers which include MPPT algorithms. Results of daily outdoor measurements of selected days
along one year of systems operation are presented. These results obtained in outdoor conditions have been checked
indoor using a commercial PV array simulator. The objective is to establish some relevant dynamic performance
parameters for the equipment characterization and standardization.
Gomphonema californicum Stancheva & Sheath & Kociolek 2016, sp. nov.
Creators: name: Stancheva, Rosalina
name: Sheath, Robert G.
name: Kociolek, J. Patrick
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Chromista
Ochrophyta
Bacillariophyceae
Cymbellales
Gomphonemataceae
Gomphonema
Gomphonema californicum

description: Gomphonema californicum Stancheva & Kociolek, sp. nov. (Figs 1–27)   LM observations
Valves are lanceolate-clavate with rounded head pole and narrower foot pole. Cells are 5.6–8.3 μm wide, 22–67 μm long (Figs 1–13); initial cell 10 μm wide, 71 μm long (Fig. 14). Striae are slightly radiate at the center of the valve 10–13 in 10 μm, becoming denser up to 15 in 10 μm near both apices and strongly radiate toward the foot pole. Striae composed of areolae, which are coarser and distinguishable near the head pole, 28–32 in 10 μm. Striae sometimes are interrupted, particularly around the central area (Figs 2 and 3). Axial area narrow, lanceolate. One, occasionally two median striae on both sides of the central area are shorter than the others (Figs 4–6). Central area is rectangular transversely extended, delimited by two or three curved striae (Figs 2, 6, 8, 10), rarely elliptical (Fig. 4). One isolated stigma is positioned close to the proximal raphe ends. Sometimes one or a few small indistinct depressions are present in the central area, not easily resolvable with LM (Fig. 2). The raphe is lateral, slightly undulate. Frustules are slightly cuneate in girdle view with single or double irregular rows of puncta on each mantle, in some specimens interrupted near the middle (Figs 12 and 13).
description: Published as part of Stancheva, Rosalina, Sheath, Robert G. & Kociolek, J. Patrick, 2016, New Freshwater Gomphonemoid Diatoms from Streams in the Sierra Nevada Mountains, California, USA, pp. 118-134 in Phytotaxa 289 (2) on page 120, DOI: 10.11646/phytotaxa.289.2.2, http://zenodo.org/record/13646619
High Efficient PV-Inverters with Silicon Carbide Transistors
Creators: name: Kranzer, D.
name: Burger, B.
name: Reiners, F.
name: Wilhelm, C.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
Balance of System Components

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3610-3615
description: The application of silicon carbide (SiC) transistors in PV-inverters is shown and rated respective to their
performance. Currently, there are several field effect or bipolar transistor types in development with normally-on and
normally-off characteristics. It is not yet clear, which transistor type will prevail in the market and which will remain a niche
product. The difference in performance and switching behaviour to standard Silicon transistors is pointed out, to demonstrate
the optimum application for each transistor type.
PTF 13efv - An outburst 500 days prior to the SNHunt 275 explosion and its radiative efficiency
Creators: name: Ofek, E. O.
name: Cenko, S. B.
name: Shaviv, N. J.
name: Duggan, G.
name: Strotjohann, N. -L.
name: Rubin, A.
name: Kulkarni, S. R.
name: Gal-Yam, A.
name: Sullivan, M.
name: Cao, Y.
name: Nugent, P. E.
name: Kasliwal, M. M.
name: Sollerman, J.
name: Fransson, C.
name: Filippenko, A. V.
name: Perley, D. A.
name: Yaron, O.
name: Laher, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The progenitors of some supernovae (SNe) exhibit outbursts with super-Eddington luminosities prior to their final explosions. This behavior is common among Type IIn SNe, but the driving mechanisms of these precursors are not yet well understood. SNHunt 275 was announced as a possible new SN during May 2015. Here we report on pre-explosion observations of the location of this event by the Palomar Transient Factory (PTF) and report the detection of a precursor about 500 days prior to the 2015 May activity (PTF 13efv). The observed velocities in the 2015 transient and its 2013 precursor absorption spectra are low (1000-2000 km/s), so it is not clear yet if the recent activity indeed marks the final disruption of the progenitor. Regardless of the nature of this event, we use the PTF photometric and spectral observations, as well as Swift-UVOT observations, to constrain the efficiency of the radiated energy relative to the total kinetic energy of the precursor. We find that, using an order-of-magnitude estimate and under the assumption of spherical symmetry, the ratio of the radiated energy to the kinetic energy is in the range of 0.04 to 3400.
description: ApJ in press, 10 pages
A simple manufacturing process of the miniaturised octopus-inspired underwater soft robotic grippers
Creators: name: Eroğlu, Murat
name: Parmak, Ebru Devrim Şam
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Space Science
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Hematology
subject: Plant Biology

description: In this article, we show a new fabrication technique based on CNC machining for the miniaturised octopus-inspired underwater soft robotic grippers. This method provides practical and scale-up production of these grippers. Polydimethylsiloxane/polyethylene terephthalate (PDMS/PET) film (∼7 × 7 cm2) consisting of concave structures in two different geometries (outer and inner) with the suction-based property was produced by using our suggested manufacturing method. The highest adhesion force was obtained on the flat deformable object by the outer concave structured gripper (∼6 kPa) and the flat rigid object by the inner concave structured gripper (∼12 kPa). Moreover, both the grippers exhibit switchable adhesion by changing the retraction velocity as well as high repeatability (over 100 cycles) in underwater conditions. This method will enable practical fabrication of the miniaturised octopus-inspired underwater soft robotic grippers. The proposed manufacturing technique will facilitate the widespread use and commercialisation of the grippers.
String-Based Maximum Power Tracking of Photovoltaic Systems
Creators: name: Merz, R.
name: Garamoun, A.S.
name: Wurster, T.
name: Jochen, J.
name: Schubert, M.B.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
Balance of System Components

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3673-3676
description: During the past years there is a trend to multi-string maximum power point (MPP) trackers or module
trackers for photovoltaic systems. Using one DC/DC converter to track each string independent from other strings
prevents mismatch losses, especially if parts of the system are temporarily shaded. This contribution presents a new
type of topology for multi-string MPP tracking with only one DC/DC converter instead of one converter for each
string. The study discusses two configurations of such multiple input converters in detail, demonstrating an
optimized buck converter based circuit for low power applications that yields a 14 % increase in absolute conversion
efficiency. Moreover, we present the simulation and first measurements of a converter designed to operate a test
system with eight strings, providing a total power Ptot = 800 W. The measurements prove the individual maximum
power point tracking of each string independent from the others.
Accelerating Photovoltaic R&D via Joint Collaboration Programs
Creators: name: Pieters, P.
name: Poortmans, J.
Publisher: name: WIP
Year: 2011
Subjects: PV Taking Off: Large-Scale Deployment
PV Programmes and Policies

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4689-4692
description: The need for research and development (R&D) and innovation in photovoltaics continues to increase.
This is required to enable further increase of solar cell efficiency and reduction of the manufacturing cost. At the
same time the cost for carrying out the R&D itself increases because much more technology options have to be
investigated in order to try to meet the desired goals. A cost effective way to carry out such expensive and advanced
R&D is to set-up joint R&D collaborations. This paper describes a business model in which multiple industrial
companies share the cost of advanced R&D by participating in joint R&D programs driven by a Central R&D
Partner. We explain that next to sharing of the cost and consequently the associated R&D risk, also the intellectual
property (IP) becomes shared. This does not need to be a problem because each industrial partner can still keep its
own unique IP fingerprint by blending the shared IP with its own proprietary IP. Additionally, when a (limited)
number of companies work on the same type of solutions, they may have more leverage on the supply chain (material
and equipments suppliers) which may further help them in accelerating market introduction and reducing the
production cost.
Vygotsky in Practice: Applying Vygotskian notions to improve coach education in rugby union
Creators: name: Pritchard, Rhys
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Physical education and development curriculum and pedagogy

description: The aim of this study was to show how I, a coach educator, used Vygotskian notions to improve rugby coaches’ conceptual understanding of game principles and how to apply them in practice. The study involved a group of six student rugby coaches. Using action research, coaches delivered a 10-week rugby programme to a class of year 5 children, informed by Vygotskian notions and GCA. Data was collected on coach learning through observation of their ability to deliver through GCA, a reflective log detailing my reflections as coach educator and a series of focus groups with the coaches. Data was analysed using a combination of deductive and inductive thematic analysis (Braun and Clark, 2006). Findings highlighted the use of language, importance of the more capable other, embedding learning in context and providing time to internalise ideas as being key within the learning process. The study contributes to the developing body of empirical evidence that seeks to promote Vygotskian pedagogy as a credible theoretical lens, whilst recognising the complexities of sports coaching.
Investigation of Light Induced Degradation (LID) Phenomenon in Different Multicrystalline Silicon
Creators: name: Mong-The Yen, V.
name: Palais, O.
name: Périchaud, I.
name: Barakel, D.
name: Pasquinelli, M.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Feedstock, Crystallisation and Wafering

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1853-1855
description: The purpose of this work is to understand the behavior of different silicon materials and to determine
how the light induced degradation (LID) occurs. This phenomenon is known to be related to the B-O complexes [1].
With this aim, three multicrystalline silicon wafers have been investigated: a compensated EG (electronic grade), an
upgraded metallurgical grade (UMG) which was strongly boron compensated and an UMG which was slightly boron
compensated. To cause the LID phenomena, the samples are enlightened during some hours. Electric
characterizations between initial state and after illumination show the B-O complexes effects. They are more visible
in UMG silicon than in EG silicon. Comparisons between twins UMG samples which one have a standard POCL3
diffusion and the other not, show that the minority carrier lifetime degradation is more important without this
treatment. This is probably due to the strong self-interstitials injection in the bulk which occurs during the
diffusion. In minority carrier lifetime mapping, after illumination, Fe-B pairs and B-O complexes risk to be
confused. An analysis was made to dissociate Fe-B and B-O influences in the top of a strongly compensated UMG
brick.
Light Induced Degradation in Multicrystalline Solar Grade Silicon Solar Cells Evaluated Using Accelerated LID
Creators: name: Peter, K.
name: Preis, P.
name: Díaz-Pérez, P.E.
name: Theobald, J.
name: Enebakk, E.
name: Soiland, A.-K.
name: Savtchouk, A.
name: Wilson, M.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Feedstock, Crystallisation and Wafering

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1856-1858
description: For solar grade silicon (SoG-Si) from metallurgical process route to be competitive in the future the
feedstock must enable the same solar cell efficiency potential as compared to cells from traditional silicon (poly-Si) even
after light induced degradation. Therefore the detailed investigation and understanding of the degradation effect will
allow for an optimized usage of SoG-Si. The use of the accelerated light induced degradation (ALID) technique enables
to assess the effect of degradation and its correlation to the oxygen and dopant concentrations in a more detailed way than
in classical LID tests. Especially it enables determination of the distributions of the defects, which gives new insights into
the formation and distribution of the defects responsible for LID.
Efficacy of Labour Provisions within Trade Agreements: Case Studies of the U.S-Cambodia Bilateral Trade Agreement and the Canada-United States-Mexico Agreement
Creators: name: Morin, Pierre-Luc
name: Morin, Pierre-Luc
Publisher: name: Unknown
Year: 2022
Subjects: subject: International Relations/Trade
subject: Cambodia
subject: FTAs
subject: ILO
subject: labour provisions
subject: Mexico

description: Trade is increasingly being utilized to protect the environment and human rights. This article addresses the use of trade agreements to better labour rights and standards. This is done using two case studies. Firstly, the US – Cambodia Textile Agreement in partnership with the International Labour Organization is examined. Secondly, the Canada-United States-Mexico Agreement, one of the most recent Free Trade Agreements, which contains interesting labour provisions that set out to better the lives of workers. However, it is interesting to evaluate if such provisions are actually effective and if they impact the lives of the workers in the factories where goods are made.
Reliable and robust entanglement witness
Creators: name: Yuan, Xiao
name: Mei, Quanxin
name: Zhou, Shan
name: Ma, Xiongfeng
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entanglement, a critical resource for quantum information processing, needs to be witnessed in many practical scenarios. Theoretically, witnessing entanglement is by measuring a special Hermitian observable, called entanglement witness (EW), which has non-negative expected outcomes for all separable states but can have negative expectations for certain entangled states. In practice, an EW implementation may suffer from two problems. The first one is \emph{reliability}. Due to unreliable realization devices, a separable state could be falsely identified as an entangled one. The second problem relates to \emph{robustness}. A witness may not to optimal for a target state and fail to identify its entanglement. To overcome the reliability problem, we employ a recently proposed measurement-device-independent entanglement witness, in which the correctness of the conclusion is independent of the implemented measurement devices. In order to overcome the robustness problem, we optimize the EW to draw a better conclusion given certain experimental data. With the proposed EW scheme, where only data postprocessing needs to be modified comparing to the original measurement-device-independent scheme, one can efficiently take advantage of the measurement results to maximally draw reliable conclusions.
description: 13 pages, 4 figures
title: Comparison of Tolerance to High Moisture Conditions of the Soil Among Crop Plants: Studies on the Comparative Plant Nutrition [English Translation]
Creators: name: Tadano, T.
name: Kirimoto, K.
name: Aoyama, J.
name: Tanaka, A.
Publisher: name: Japanese Society of Soil Science and Plant Nutrition
Year: 1979

description: Tolerance to high moisture conditions in the soil was compared for eighteen crop species, and factors causing differences among species were studied: 1) When the moisture content of a soil was kept high, the soil air contained 10.5 - 17.5% of O2 and 5.0 - 9.8% of CO2, and the soil solution was not very high in Fe, Mn or NO2-N. 2) Cruciferae, Solanaceae, sugar beet, field bean, pea, cucumber and Chrysanthemum coronarium were very susceptible to this condition, but maize, soybean, and onion were tolerant. Rice grew better under this condition than under ordinary upland conditions. 3) Tolerance to a low O2 concentration in water culture conditions was low for Chinese cabbage, tomato, sugar beet, Chrysanthemum coronarium, and eggplant, but was high for rice, onion, Azuki bean, and red pepper. 4) Tolerance to a high CO2 concentration in water culture conditions was low for Cruciferae, tomato, Chinese cabbage, red pepper, cucumber, and pea, but it was high for rice. 5) Tolerance to high moisture in the soil correlated well with the combination of tolerances to low O2 and high CO2 concentrations in water culture conditions. 6) Some of the species tolerant to high moisture in the soil developed more roots in the surface horizon of the soil when the moisture content of a soil was excessively high than when it was normal.
Gomphoneis oreophila Stancheva & Sheath & Kociolek 2016, sp. nov.
Creators: name: Stancheva, Rosalina
name: Sheath, Robert G.
name: Kociolek, J. Patrick
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Chromista
Ochrophyta
Bacillariophyceae
Cymbellales
Gomphonemataceae
Gomphoneis
Gomphoneis oreophila

description: Gomphoneis oreophila Stancheva & Kociolek, sp. nov. (Figs 46–71)   LM observations
Valves are nearly lanceolate, slightly clavate with rounded head pole and narrower foot pole (Figs 46–57). Margins are straight to convex and tumid at the center. Cells are 10.3–16 μm wide, 51–105 μm long; initial valves 15–17 μm wide, 120–125 μm long (Figs 53, 54). Axial area is relatively narrow, straight and slightly expanded only at the center to form a small linear-elliptical central area bearing one stigma (Figs 46–52). Raphe is slightly arched, distinctly lateral. Striae are nearly parallel to slightly radiate in the center, more strongly radiate toward the poles, 10–12 in 10 μm. Striae distinctly biseriate. Longitudinal lines located close to the valve margin (submarginal, Figs 49, 52, 54, 56) better visible when the valve is tilted. Initial valves bent, tumid in the center, bearing in the central area one stigma and 2 to many areolae (Figs 53, 54). Frustules are cuneate in girdle view with single irregular row of puncta missing in the central part (Fig. 58).
description: Published as part of Stancheva, Rosalina, Sheath, Robert G. & Kociolek, J. Patrick, 2016, New Freshwater Gomphonemoid Diatoms from Streams in the Sierra Nevada Mountains, California, USA, pp. 118-134 in Phytotaxa 289 (2) on page 127, DOI: 10.11646/phytotaxa.289.2.2, http://zenodo.org/record/13646619
Optimal Sizing of PV Array and Inverter for 4 PV Technologies and Module Inclination
Creators: name: Notton, G.
name: Lazarov, V.
name: Stoyanov, L.
name: Heraud, N.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
Balance of System Components

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3646-3651
description: An optimal sizing methodology based on an energy approach is described and applied to gridconnected
photovoltaic systems taking into account the photovoltaic module technology and inclination, the inverter
type and the location. A model describing the efficiency for mSi, pSi, aSi and CIS is used. The method has been
applied on various meteorological stations in Bulgaria. The main parameter affecting the sizing is the inverter
efficiency curve. The influence of the PV module technology seems less important excepted for amorphous
photovoltaic modules for which special remarks have been made. The inclination on the PV system influences the
performances particularly when the inverter is undersized compared to the PV peak power.
D3.3 R&I Performance Indicators
Creators: name: DTU
name: , Nesta
name: FRAUNHOFER
name: Fundación Cotec Para La Innovación
Publisher: name: Zenodo
Year: 2019
Subjects: EURITO indicators, data sets, algorithms, policy questions

description: The report outlines the R&I performance indicators developed during the work performed during WP3. Indicators are discussed in connection to the scale-ups they are based on, the use of the underlying data sets, quantitative algorithms and policy questions they address.
A Comparative Simulation Analysis of Maximum Power Point Tracking Approaches
Creators: name: Nge, C.L.
name: Yordanov, G.
name: Midtgård, O.M.
name: Sætre, T.O.
name: Norum, L.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
Balance of System Components

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3668-3672
description: The occurrence of multiple local maxima due to partial shading conditions poses a serious challenge to
MPPT techniques. This paper compares the popular real-time MPPT algorithm with the scanning approach using
PSPICE simulation. The MPPT methods are compared at dynamic partial shading conditions. The compromises
between real-time and scanning methods are investigated. It is shown that the scanning approach is able to search for
global MPPs but incurs power loss during the scanning period. A new strategy that reduces the scanning period by
skipping parts of the voltage range is presented in this paper.
How Much PV Energy Will I Produce Tomorrow? A Forecasting Tool Which Fits the Future Conditions on the French Electricity Market
Creators: name: Lespinats, S.
name: Cugnet, F.
name: Guillou, H.
name: Le Pivert, X.
Publisher: name: WIP
Year: 2011
Subjects: PV Taking Off: Large-Scale Deployment
Large Scale Grid Integration and Smart Grids

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4625-4628
description: The contribution of solar energy generation assets to the French electrical grid is fast growing. Because the weather is
intrinsically fluctuating and chaotic and photovoltaic production is obviously connected to weather conditions, the
supply of photovoltaic energy is fluctuating and chaotic as well. But the electrical grid must be balanced at any time.
To control the solar energy penetration into the network while keeping it balanced, photovoltaic production pattern
must be anticipated [1, 2]. That is how weather forecasts become very helpful to manage solar plants. Photovoltaic is
actually exempt from establishing a production guideline within French rules (unlike other energy plants), so as to
support the growing of renewable energy. However, when the percentage of unforeseeable energy exceeds a
threshold of 30% on a network, the energy administrator is allowed to disconnect a producer without any financial
compensation. Such a threshold is actually frequently reached in several French insular departments and territories
(French Caribbean islands, Réunion, Corse, …). Unfortunately, this threshold will not promote investments in
photovoltaic plants.
Our Vision - Lately, wind farms are asked to provide a production guideline as any other energy producer. We
believe that, sooner or later, a similar rule will be applied on solar farms, which will allow the removal of the
threshold on the share of unpredictable energy injected on the network. Otherwise, there is no doubt that a tool to
forecast the production will help photovoltaic producers and network managers.
[B.5.01.008.b.] La Varsovienne
Creators: name: Moussinac, Léon (1894-1964)
name: Jouvenel, Arlette De
Publisher: name: École des Hautes Études en Sciences Sociales; Le Chant du monde
Year: 2023
Subjects: http://www.idref.fr/027416593/id
http://www.idref.fr/034703926/id
http://www.idref.fr/027261468/id
http://www.idref.fr/050613995/id
http://www.idref.fr/027368688/id

Abstract
The Policy Drivers of Photovoltaic Industry Growth
Creators: name: Alloisio, I.
Publisher: name: WIP
Year: 2011
Subjects: PV Taking Off: Large-Scale Deployment
PV Programmes and Policies

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4677-4683
description: This study is about the effectiveness of market-pull and technology-push approaches as drivers to
technological change and to good performance of photovoltaic (PV) companies. On the one hand, energy policy for
the promotion of solar energy consumption provides incentives to attract investment in solar power plants, and on
the other hand technology policy to support R&D in photovoltaic technology creates new business opportunities for
manufacturing enterprises. This work focuses on policies adopted in Germany, Japan, and California and the effects
on their domestic PV enterprises. These countries were the first to invent, develop, and deploy to the market the PV
technology and are still the leaders in the PV market today. This paper contributes to evaluate the relationship
between the two types of policies and their good or mismatching with the success and failures of the domestic PV
industries. The conclusion is that a synergy of the two approaches is necessary for the growth of PV technology
industry, and that government policies to promote environmentally-enhancing technological development should
include both technology-push and market-pull approaches all along the period spanning pre-commercialization,
first commercial use, and market adoption.
Distinguishing between Shunt Defects in Top and Bottom Cells of Micromorph Silicon Tandem Modules Using LIT
Creators: name: Siegloch, M.
name: Straube, H.
name: Lei, Y.
name: Zahren, C.
name: Gerber, A.
name: Breitenstein, O.
name: Rau, U.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Thin Film Solar Cells
Amorphous and Microcrystalline Silicon Solar Cells

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 3264-3268
description: Shunt defects influence the output performance of a solar cell or a module negatively. Extensive studies
of their origins are necessary to reduce parasitic power dissipation in solar cells. Simple measurement techniques
are desirable to distinguish between fabrication-induced shunts and shunts caused by electrical breakdowns, e.g. due
to opacity. We investigated shunts in a micromorph silicon thin film solar module by means of dark (DLIT) and illuminated
lock-in thermography (ILIT). We derived their electrical characteristics from thermography images by
varying the bias voltage. A classification of the defects indicated several types of shunts with different electrical
properties. For optimisation processes of solar cells or quality management issues it is important to know the exact
location of a shunt or defect. State-of-the-art thermography approaches enable only a lateral localisation of shunts.
This is sufficient for single junction solar cells, but not for multi junction solar cells like micromorph tandem solar
cells, where a shunt can occur in the amorphous or microcrystalline layer or both. We present a measurement technique
based on ILIT which relates a shunt to its original layer in a tandem solar cell. To reveal the actual structure of
the investigated shunts, we milled trenches through them by using a Focused Ion Beam (FIB) and imaged their crosssections
by scanning electron microscopy (SEM).
One-dimensional Schrödinger operators with singular potentials: A Schwartz distributional formulation
Creators: name: Dias, Nuno Costa
name: Prata, Joao Nuno
name: Jorge, Cristina
Publisher: name: arXiv
Year: 2016
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Using an extension of the Hörmander product of distributions, we obtain an intrinsic formulation of one-dimensional Schrödinger operators with singular potentials. This formulation is entirely defined in terms of standard {\it Schwartz} distributions and does not require (as some previous approaches) the use of more general distributions or generalized functions. We determine, in the new formulation, the action and domain of the Schrödinger operators with arbitrary singular boundary potentials. We also consider the inverse problem, and obtain a general procedure for constructing the singular (pseudo) potential that imposes a specific set of (local) boundary conditions. This procedure is used to determine the boundary operators for the complete four-parameter family of one-dimensional Schrödinger operators with a point interaction. Finally, the $δ$ and $δ'$ potentials are studied in detail, and the corresponding Schrödinger operators are shown to coincide with the norm resolvent limit of specific sequences of Schrödinger operators with regular potentials.
description: 33 pages; to appear in J. Diff. Equations
Effective Clipart Image Vectorization Through Direct Optimization of Bezigons
Creators: name: Yang, Ming
name: Chao, Hongyang
name: Zhang, Chi
name: Guo, Jun
name: Yuan, Lu
name: Sun, Jian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: Bezigons, i.e., closed paths composed of Bézier curves, have been widely employed to describe shapes in image vectorization results. However, most existing vectorization techniques infer the bezigons by simply approximating an intermediate vector representation (such as polygons). Consequently, the resultant bezigons are sometimes imperfect due to accumulated errors, fitting ambiguities, and a lack of curve priors, especially for low-resolution images. In this paper, we describe a novel method for vectorizing clipart images. In contrast to previous methods, we directly optimize the bezigons rather than using other intermediate representations; therefore, the resultant bezigons are not only of higher fidelity compared with the original raster image but also more reasonable because they were traced by a proficient expert. To enable such optimization, we have overcome several challenges and have devised a differentiable data energy as well as several curve-based prior terms. To improve the efficiency of the optimization, we also take advantage of the local control property of bezigons and adopt an overlapped piecewise optimization strategy. The experimental results show that our method outperforms both the current state-of-the-art method and commonly used commercial software in terms of bezigon quality.
description: 18 pages, 16 figures
Trigeminal Neuralgia associated with Vagus Nerve Stimulation: A case report and review of the literature
Creators: name: ZORGÖR, GÜLŞAH
name: GUL, GUNAY
name: EREN, FULYA
name: BASTUG GUL, ZEYNEP
name: CAPAN, ALPEREN
name: Soysal, Aysun
Publisher: name: figshare
Year: 2023
Subjects: Neurology and neuromuscular diseases

description: Purpose of review: Vagus nerve stimulation (VNS) is an efficious therapeutic option which is widely used all over the world in drug-resistant epilepsy cases. Being a surgical procedure, some complications may develop with VNS implantation. Although VNS-related pain symptoms have been reported, VNS-related trigeminal neuralgia is an unexpected and rather rare side effect. This report is to present a case of trigeminal pain as an adverse effect of VNS. Recent findings: A patient with drug-resistant epilepsy under VNS treatment developed pain synchronously with stimulation in his left upper and lower jaw and teeth. The pain occurred on the day of stimulation current intensity (SCI) increase. The sudden disappearance of the pain with decreasing the SCI suggested that trigeminal pain was related to VNS. Summary: Since it is a rare side effect, trigeminal pain may not be regarded as a VNS-related side effect and moreover, it may lead to unnecessary examinations. Being a rapid reversible side effect, recognizing it and reducing the SCI is crucial. VNS stimulation paradigms on nociception are still largely unknown, and it will be an important step to elucidate the important impact of VNS in pain modulation.
Trigeminal Neuralgia associated with Vagus Nerve Stimulation: A case report and review of the literature
Creators: name: GUL, GUNAY
name: EREN, FULYA
name: BASTUG GUL, ZEYNEP
name: CAPAN, ALPEREN
name: Soysal, Aysun
name: ZORGÖR, GÜLŞAH
Publisher: name: figshare
Year: 2023
Subjects: Neurology and neuromuscular diseases

description: Purpose of review: Vagus nerve stimulation (VNS) is an efficious therapeutic option which is widely used all over the world in drug-resistant epilepsy cases. Being a surgical procedure, some complications may develop with VNS implantation. Although VNS-related pain symptoms have been reported, VNS-related trigeminal neuralgia is an unexpected and rather rare side effect. This report is to present a case of trigeminal pain as an adverse effect of VNS. Recent findings: A patient with drug-resistant epilepsy under VNS treatment developed pain synchronously with stimulation in his left upper and lower jaw and teeth. The pain occurred on the day of stimulation current intensity (SCI) increase. The sudden disappearance of the pain with decreasing the SCI suggested that trigeminal pain was related to VNS. Summary: Since it is a rare side effect, trigeminal pain may not be regarded as a VNS-related side effect and moreover, it may lead to unnecessary examinations. Being a rapid reversible side effect, recognizing it and reducing the SCI is crucial. VNS stimulation paradigms on nociception are still largely unknown, and it will be an important step to elucidate the important impact of VNS in pain modulation.
[B.5.01.008.a.] Le Front des travailleurs
Creators: name: Moussinac, Léon (1894-1964)
name: Jouvenel, Arlette De
Publisher: name: École des Hautes Études en Sciences Sociales; Le Chant du monde
Year: 2023
Subjects: http://www.idref.fr/034703926/id
http://www.idref.fr/027416593/id
http://www.idref.fr/050613995/id
http://www.idref.fr/027368688/id
http://www.idref.fr/027261468/id

Abstract
A kinetic model for the transport of electrons in a graphene layer
Creators: name: Kammerer, Clotilde Fermanian
name: Méhats, Florian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this article, we propose a new numerical model for computation of the transport of electrons in a graphene device. The underlying quantum model for graphene is a massless Dirac equation, whose eigenvalues display a conical singularity responsible for non adiabatic transitions between the two modes. We first derive a kinetic model which takes the form of two Boltzmann equations coupled by a collision operator modeling the non-adiabatic transitions. This collision term includes a Landau-Zener transfer term and a jump operator whose presence is essential in order to ensure a good energy conservation during the transitions. We propose an algorithmic realization of the semi-group solving the kinetic model, by a particle method. We give analytic justification of the model and propose a series of numerical experiments studying the influences of the various sources of errors between the quantum and the kinetic models.
Chemical Memory Effect of in Situ NF3 Chamber Cleaning on a-Si/µc-Si Tandem Module Performance
Creators: name: Ahn, K.H.
name: Braun, M.
name: Hrunski, D.
name: Verdugo, V.
name: Schwabedissen, A.
name: Stannowski, B.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Thin Film Solar Cells
Amorphous and Microcrystalline Silicon Solar Cells

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 3269-3272
description: The influence of in situ NF3 chamber cleaning on a-Si/μc-Si tandem device performance has been
investigated on 1.78-m2 modules produced in an industrial inline PECVD production line. After the cleaning process,
the module output power drops compared to the last deposition cycle, but recovers gradually with increasing number
of depositions. This “chemical memory effect” (CME) of the early modules is likely to be caused by fluorine chamber
contamination from NF3:Ar plasma, since SIMS measurement results show that fluorine content in the film decreases
with increasing number of depositions. I-V measurements on small-area cells have shown that the module
performance as a whole is mainly limited by cells with low current, located at the module edges, where the fluorine
contamination from chamber walls is likely to be higher. It has been found that the position dependence of the CME
after NF3 cleaning results from deteriorated microcrystalline bottom cells around the module edges. In order to
minimize this effect, deposition condition as well as module fabrication method were optimized especially for the
early modules.
A Tariffying Thought: Imposing Tariffs on US Apparel Imports from China
Creators: name: Liu, Bing
name: Hudson, Daren
name: Devine, Jon
name: Liu, Bing
name: Hudson, Daren
name: Devine, Jon
Publisher: name: Unknown
Year: 2022
Subjects: subject: Agricultural and Food Policy
subject: AIDS model
subject: apparel/clothing imports
subject: source-differentiated
subject: tariff

description: Using a source-differentiated Almost Ideal Demand System (SDAIDS) model, this paper analyzes US demand for apparel imports and estimates effects of a 15% tariff increase on clothing imports from China. Our welfare analysis estimated a consumer surplus loss of about $348 million per year. Our findings show that China can improve its market position by lowering their prices, or conversely, that tariffs will disproportionally reduce Chinese market share. However, other Asian apparel exporting countries, especially Vietnam and Bangladesh, are strong competitors that could represent a challenge to the current market position of China.
[B.5.01.009.a.] L’Adieu d’un soldat rouge
Creators: name: Moussinac, Léon (1894-1964)
name: Jouvenel, Arlette De
Publisher: name: École des Hautes Études en Sciences Sociales; Le Chant du monde
Year: 2023
Subjects: http://www.idref.fr/027261468/id
http://www.idref.fr/027368688/id
http://www.idref.fr/027416593/id
http://www.idref.fr/034703926/id
http://www.idref.fr/050613995/id

Abstract
Self-organisation in protoplanetary disks: global, non-stratified Hall-MHD simulations
Creators: name: Béthune, William
name: Lesur, Geoffroy
name: Ferreira, Jonathan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Recent observations revealed organised structures in protoplanetary disks, such as axisymmetric rings or horseshoe concen- trations evocative of large-scale vortices. These structures are often interpreted as the result of planet-disc interactions. However, these disks are also known to be unstable to the magneto-rotational instability (MRI) which is believed to be one of the dominant angular momentum transport mechanism in these objects. It is therefore natural to ask if the MRI itself could produce these structures without invoking planets. The nonlinear evolution of the MRI is strongly affected by the low ionisation fraction in protoplanetary disks. The Hall effect in particular, which is dominant in dense and weakly ionised parts of these objects, has been shown to spontaneously drive self- organising flows in shearing box simulations. Here, we investigate the behaviour of global MRI-unstable disc models dominated by the Hall effect and characterise their dynamics. We perform 3D unstratified Hall-MHD simulations of keplerian disks for a broad range of Hall, ohmic and ambipolar Elsasser numbers. We confirm the transition from a turbulent to an organised state as the intensity of the Hall effect is increased. We observe the formation of zonal flows, their number depending on the available magnetic flux and on the intensity of the Hall effect. For intermediate Hall intensity, the flow self-organises into long-lived magnetised vortices. Neither the addition of a toroidal field nor ohmic or ambipolar diffusion drastically change this picture in the range of parameters we have explored. The ability of these structures to trap dust particles in this configuration is demonstrated. We conclude that Hall-MRI driven organisation is a plausible scenario which could explain some of the structures found in recent observations.
description: 16 pages, 21 figures
Design Case Study of Large Scale Demonstration of PV System in Sustainable RES Microgrid System of Urban Environment in Hungary in the PIME’s Project
Creators: name: Kuthi, E.
name: Budavári, Z.
name: Tóth, P.
name: Matolcsy, K.
Publisher: name: WIP
Year: 2011
Subjects: PV Taking Off: Large-Scale Deployment
Large Scale Grid Integration and Smart Grids

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4646-4650
description: PIME’S is an EU FP7 project in the CONCERTO III Call, involving three cities in Europe: Vitoria-
Gasteiz (Spain), DALE/Sandnes (Norway) and Szentendre (Hungary). Its main purpose is large scale demonstration
of RES application and energy efficiency in community scale. This writing focuses on concept and design of the
microgrids in the demonstration of Szentendre. Energy efficiency measurements (refurbishment of 17000m2 in
different residential houses, offices and educational buildings and construction of 6000m2 new office building) focus
on sustainability of using high share recycling material for thermal insulation and on site window upgrading together
with PV integrated shading devices and BEMS application, incorporated in microgrid of RES production. One of
PIME’S goals is to set up and demonstrate a repeatable energy management approach based on microgrids, to be
designed, adapted, built and run according to the specific opportunities and requirements. A real-time system is under
development for managing consumption at all heat and power demand points and assessing the costs of production
and sale of the different types of power generated, and also the cost of purchasing power from the grid.
[B.5.01.009.b.] Le Chant du Kolkoz
Creators: name: Moussinac, Léon (1894-1964)
name: Jouvenel, Arlette De
Publisher: name: École des Hautes Études en Sciences Sociales; Le Chant du monde
Year: 2023
Subjects: http://www.idref.fr/027416593/id
http://www.idref.fr/027368688/id
http://www.idref.fr/027261468/id
http://www.idref.fr/050613995/id
http://www.idref.fr/034703926/id

Abstract