cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Simulation of a Leo Satellite Electrical Power Supply Subsystem In-Orbit Operation
Creators: name: Farid, H.
name: El-Koosy, M.
name: El-Shater, T.F.
name: El-Koshairy, A.
name: Mahmoud, A.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Solar Cells, Modules and PV Systems for Space Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 752-755
description: In this paper, the orbital operation of the electrical power supply subsystem (EPSS) for a remote sensing low earth orbit (LEO) satellite is simulated using Simulink tools of MATLAB-7 software. The solar arrays area and chemical battery capacity are calculated according to the requirements imposed on the satellite mission. Their orbital performance is examined using previously deduced mathematical models. For the storage battery mathematical model, a relation is introduced to calculate the battery’s instantaneous depth of discharge. Other components of EPSS are also modeled in Simulink and simulation of the daily system’s operation is performed. The simulation results illustrated the daily solar arrays illumination, the daily variation of solar arrays and loads currents
and battery voltage, current and depth of discharge. The simulation also enabled to examine which of the different solar arrays configuration, with regards to the number of solar arrays sections, provides the most optimum EPSS performance.
An Economic Approach to Evaluate the Range of Coverage of Indium and its Impact on Indium Based Thin-Film Solar Cells - Recent Results of Cu2ZnSnS4 (CZTS) Based Solar Cells
Creators: name: Schubert, B.A.
name: Kötschau, I.M.
name: Cinque, S.
name: Schock, H.W.
name: Meran, G.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Deployment
PV as Enabling Technology

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3788-3792
description: Indium is a scarce and expensive resource. The growth of indium based solar cells as Cu(In,Ga)(S,Se)2 is dependent on the availability of this metal. A novel dynamic economic model was created to evaluate the indium lifetime. A simulation resulted in a range of coverage of 75 years (up to 2083). A cumulative total of 666 GWp of indium based solar cells can be produced which is sufficient to expand production in the near future. However, the scarcity of indium will limit substantial indium based PV market growth from 2030 onwards. In order to substitute indium Cu2ZnSnS4 (CZTS) based solar cells were fabricated at the HZB. A sequential physical vapor deposition (PVD) process using ZnS, Sn, Cu and S sources lead to solar cells with efficiencies of up to 2.4%.
On the ground states and dynamics of space fractional nonlinear Schrödinger/Gross-Pitaevskii equations with rotation term and nonlocal nonlinear interactions
Creators: name: Antoine, Xavier
name: Tang, Qinglin
name: Zhang, Yong
Publisher: name: arXiv
Year: 2015
Subjects: subject: Numerical Analysis (math.NA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper, we propose some efficient and robust numerical methods to compute the ground states and dynamics of Fractional Schrödinger Equation (FSE) with a rotation term and nonlocal nonlinear interactions. In particular, a newly developed Gaussian-sum (GauSum) solver is used for the nonlocal interaction evaluation \cite{EMZ2015}. To compute the ground states, we integrate the preconditioned Krylov subspace pseudo-spectral method \cite{AD1} and the GauSum solver. For the dynamics simulation, using the rotating Lagrangian coordinates transform \cite{BMTZ2013}, we first reformulate the FSE into a new equation without rotation. Then, a time-splitting pseudo-spectral scheme incorporated with the GauSum solver is proposed to simulate the new FSE.
Multi-junction Photovoltaic Model Optimization for Space and Solar Concentrator Applications
Creators: name: Sherif, M.
name: Lavery, J.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Solar Cells, Modules and PV Systems for Space Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 790-794
description: The primary goal of multijunction solar cell design is to maximize the output power for a given solar spectrum. The construction of multijunction cells places the individual junction layers in series, thereby limiting the overall output current to that of the junction layer producing the lowest current. The solution to optimizing a multijunction design involves both the design of individual junction layers which produce an optimum output power and the design of a seriesstacked configuration of these junction layers which yields the highest possible overall output current. This paper proposes a two-part process to refine a given multijunction solar cell design for near-optimal output power for a desired light spectrum or at elevated operating temperature, as is the case in many spacecraft operations or solar concentrator applications. The device optimization is carried out on a complete novel cell model with its built-in tunnel junctions previously developed at the Naval Postgraduate School using the SILVACO software tool.
Nonlocal transistor based on pure crossed Andreev reflection in a EuO-graphene/superconductor hybrid structure
Creators: name: Ang, Yee Sin
name: Ang, L. K.
name: Zhang, C.
name: Ma, Zhongshui
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the interband transport in a superconducting device composed of graphene with EuO-induced exchange interaction. We show that pure crossed Andreev reflection can be generated exclusively without the parasitic local Andreev reflection and elastic cotunnelling over a wide range of bias and Fermi levels in an EuO-graphene/superconductor/EuO-graphene device. The pure non-local conductance exhibits rapid on/off switching and oscillatory behavior when the Fermi levels in the normal and the superconducting leads are varied. The oscillation reflects the quasiparticle propagation in the superconducting lead and can be used as a tool to probe the subgap quasiparticle mode in superconducting graphene, which is inaccessible from the current-voltage characteristics. Our results suggest that the device can be used as a highly tunable transistor that operates purely in the non-local and spin-polarized transport regime.
description: 5 pages, 4 figures; To appear in Phys. Rev. B
PV Modules Performance With Recovered Crystal Silicon Solar Cells
Creators: name: Galán, J.E.
name: López, L.
name: Villanueva, O.
name: Montanez, J.A.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Deployment
PV as Enabling Technology

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3782-3783
Climate Protection Needs Knowledge Transfer
Creators: name: Bofinger, S.
name: Rohrig, K.
name: Scheibe, M.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Deployment
PV as Enabling Technology

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3798-3800
description: REnKnow.Net (Renewable Energies Knowledge –Transfer Network) is an internet platform for knowledge transfer in the fields of renewable energy and decentralized energy supply. The database contains research results and
education material reviewed by internationally recognized experts. The aim of REnKnow.Net is a worldwide exchange of material related to renewable energies for scientists, engineers, researchers, lecturers and students. The unique Peer Review process for wind energy is organized by the European Academy of Wind Energy (EAWE). A broad range of multimedia objects (animations, data sets) facilitates teaching and education. Sophisticated algorithms support an effective search for materials.
Concentrator Epitaxial Laminated Grid Silicon Solar Cell
Creators: name: Untila, G.
name: Kost, T.
name: Chebotareva, A.
name: Sokolov, E.
name: Statsenko, V.
name: Shvarts, K.-G.
name: Zaks, M.
name: Sitnikov, A.
name: Solodukha, O.
name: Shvarts, M.Z.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Terrestrial Concentrator Systems

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 799-802
description: Recently two approaches are considered as the most promising alternatives to bulk silicon solar cells, namely, concentrator technology as well as crystalline silicon thin film (cSiTF) solar cells consisting of a thin high qual-ity epitaxial layer on top of a highly doped substrate. In the present work we made an attempt to combine these two ap-proaches and to develop concentrator solar cell based on (n+np+)Cz-Si/Al cSiTF structure, at that using Laminated Grid Cell (LGCell) design of the contact system involving transparent electrode of Indium-Fluorine-Oxide (IFO) thin film and current collecting grid made of copper wire. The epitaxial layer of n-type silicon 50 μm thick was deposited on p+-Cz-Si type substrates with resistivity of ~0.01 Ω·cm, followed by texturing, phosphorus diffusion to create FSF and screen-printing of aluminum on the back. The best cSiTF LGCell from the first run fabricated using standard LGCell process demonstrated 16.1% efficiency at 1X and 16.75% at 4X. The standard LGCell design was revisited and optimized to re-duce the series resistance. The best cSiTF cell from the second run processed using modified LGCell process showed 15.9% efficiency at 1X and 17.0% at 10X. Furthermore, conventional LGCells based on IFO/(n+pp+)Cz-Si structure made of bulk silicon were also fabricated and tested under concentrated light. Conventional cells from the first run showed 19.0% efficiency at 1X, which monotonically reduces to 18% at 4X. However in the second run we obtained the cells which showed the increase of the efficiency with concentration from 18% at 1X up to 18.3-18.5% at 3-4X.
In-Situ Monitoring During MOCVD Growth of the Triple-Junction GaInP/Ga(In)As/Ge Solar Cells
Creators: name: Kalyuzhnyy, N.
name: Lantratov, V.
name: Mintairov, S.A.
name: Mintairov, M.A.
name: Shvarts, M.Z.
name: Timoshina, N.
name: Andreev, V.M.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Terrestrial Concentrator Systems

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 803-810
description: The possibilities for combined analysis of the triple-junction GaInP/GaInAs/Ge solar cells (SC) grown by the MOCVD technique with the use of in-situ methods of measuring normalized reflection spectra in combination with the reflectance anisotropy spectroscopy (RAS) have been investigated and described. Necessary conditions for the MOCVD growth on Ge substrates and key parameters of SC heterostructures including the doping level in the bulk photoactive subcells have been determined by analyzing the in-situ monitoring data. A strong influence of the linear electro optical effect (EOE) in doped epitaxial layers on the anisotropic reflection spectra has been observed in a wide range of temperatures and impurity concentrations (from 1×1017 см-3 to 7×1018 см-3 for n-GaAs and from 2×1017 см-3 to 7×1019 см-3 for p-GaAs layers). Directions of further investigations for creating the combined in-situ analysis of multi-junction SC heterostructures are reported.
Key Advantages of Concentrating Photovoltaics (CPV) for Lowering Levelized Cost of Electricity (LCOE)
Creators: name: Nishikawa, W.
name: Horne, S.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Deployment
PV as Enabling Technology

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3765-3767
description: The argument is made that the best cost metric for decision making in the solar field is the Levelized Cost of Energy (LCOE), as adopted by the US Department of Energy and the US National Renewable Energy Laboratory. It is expressed as ¢/kWh, at net present value, and takes into account the complexities associated with the entire lifetime of a solar plant, from financing through to end of life. By comparison, the most common metric, Cost per Watt peak ($/Wp), refers to the installed capital equipment price only. Concentrating Photovoltaic Systems, a
relatively recent form of solar power are then presented in the light of LCOE, and are shown to be very competitive with other forms of solar plant under suitable conditions.
Localized tip enhanced Raman spectroscopic study of impurity incorporated single GaN nanowire in the sub-diffraction limit
Creators: name: Patsha, A.
name: Dhara, S.
name: Tyagi, A. K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The localized effect of impurities in single GaN nanowires in the sub-diffraction limit is reported using the study of lattice vibrational modes in the evanescent field of Au nanoparticle assisted tip enhanced Raman spectroscopy (TERS). GaN nanowires with the O impurity and the Mg dopants were grown by the chemical vapor deposition technique in the catalyst assisted vapor-liquid-solid process. Symmetry allowed Raman modes of wurtzite GaN are observed for undoped and doped nanowires. Unusually very strong intensity of the non-zone center zone boundary mode is observed for the TERS studies of both the undoped and the Mg doped GaN single nanowires. Surface optical mode of A1 symmetry is also observed for both the undoped and the Mg doped GaN samples. A strong coupling of longitudinal optical (LO) phonons with free electrons, however is reported only in the O rich single nanowires with the asymmetric A1(LO) mode. Study of the local vibration mode shows the presence of Mg as dopant in the single GaN nanowires.
description: 12 pages, 3 figures, Journal
Quality Control During the Supply of PV Modules: Fundamental Key to Guarantee the Profitability of PV Installations
Creators: name: Coello, J.
name: Galindo, J.L.
name: Carames, M.
name: Carreño, R.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Deployment
PV as Enabling Technology

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3784-3787
description: The aim of this paper is stating the reasons why it is necessary to carry out a quality control during the PV modules supply in the development of a PV installation to obtain its maximum energy production. Moreover, this work marks the guidelines to follow and the basic quality control to carry out and make sure that the installed PV modules have the quality level to guarantee the profitability of the installation during its operative life. Finally, commonly detected defects during tests carried out in the Enertis Laboratory for PV characterization are showed.
Potential of Photovoltaic Technology on Greek Islands
Creators: name: Chondros, M.
name: Reich, N.H.
name: Van Sark, W.G.J.H.M.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Deployment
PV Markets

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3735-3742
description: Photovoltaics (PV) is still a rather new technology in the Greek energy market, while the installed PV capacity is growing very fast as a result of the introduction of subsidy schemes in the year 2006. Deployment of PV on the many Greek islands presently is hampered by a maximum allowable limit of installed capacity, which differs per island. With the present combination of investment subsidy and feed-in-tariff, we show through several island case studies that this combined scheme can generate large profits. We therefore recommend a policy revision, reconsidering the present limits and lowering of the present financial support scheme.
Quality of Energy Yield Reports
Creators: name: Stettler, S.
name: Toggweiler, P.
name: Rasmussen, J.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Deployment
PV as Enabling Technology

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3793-3797
description: Energy yield calculations are crucial for banks as a basis for investment decisions, but they are also used by PV planners to optimize the yield of a PV system and they are needed to estimate the energy yield guaranteed
to PV owners. Because of their significance, energy yield reports should be objective, professional and reliable. But this is very difficult to obtain, because many input parameters show high uncertainties and variability, especially
irradiation data but also technical specifications like degradation rates. In this paper uncertainties and problematic aspects of energy yield reports are discussed. It is revealed that in many energy yield reports crucial factors are
neglected, like e.g. technical correctness of the planned system and that uncertainties are often underestimated or completely omitted. The analysis also shows, that the complexity and results of energy yield reports depend on the target audience and on the project phase. To assure the reliability of energy yield reports, an obliging and internationally accepted standard is postulated, which also takes into account the different needs of energy yield reports in different stages of a project.
p-Type Semiconductors for Solid State Solar Cells
Creators: name: Duta, A.
name: Visa, I.
name: Manolache, S.A.
name: Isac, L.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
New Types of Cells and Modules

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 716-719
description: Usually, in a solid state solar cells (SSSC) the n-type semiconductor is the wide band gap TiO2 (anatase), while literature mostly reports on Cu(In, Ga)S2 as p-type candidates. Still, the use of In or Ga-based p-type sulfides rises environmental and cost problems and their replacement is an issue to be studied. The paper presents a review related to the use of CuSbS2 and CuxS as p-type absorbers in a 3D solar cell. Possible solutions in increasing the SSSC efficiency are related to an optimized contact between the n- and p-type semiconductors and to developing structures with small deviations from stoichiometry in the p-type thin layer, insuring small variations of the band gap.
The I-V response is correlated with the composition, layers’ thickness, structure and morphology of SSSC with the structures: FTO/TiO2 (dense)/TiO2 (nanoporous)/CuSbS2/graphite, obtained by SPD.
Growth and Characterization of Si Nanodot Multilayers in SiC Matrix
Creators: name: Summonte, C.
name: Mirabella, S.
name: Balboni, R.
name: Desalvo, A.
name: Crupi, I.
name: Simone, F.
name: Terrasi, A.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
New Types of Cells and Modules

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 730-733
description: Preliminary experimental results on the fabrication and characterization of Si nanodot multilayers embedded in SiC matrix are presented. Nanometric Si crystals are obtained by thermal annealing of hydrogenated SiCx/SiC multilayers deposited by PECVD onto (001) Si and fused quartz substrates. The samples have been investigated by Transmission Electron Microscopy, Scanning Electron Microscopy, X-ray diffraction, IR optical absorption and UV-VIS-near IR transmittance. Although Si nano-dots formation requires high temperature thermal annealing, we show as the initial low temperature thermal annealing for H out-diffusion is a critical step of the fabrication process.
PV Yield Prediction for Thin Film Technologies and the Effect of Input Parameters Inaccuracies
Creators: name: Krauter, S.
name: Preiss, A.
name: Ferretti, N.
name: Grunow, P.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
New Types of Cells and Modules

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 740-743
description: Accuracy of the PV yield prediction process, including meteorological data (direct and diffuse irradiance including its actual spectral composition and spatial distribution), material properties of encapsulation (refractive indices, absorption coefficients, and thermal properties), parameters relevant for heat transfer and heat dissipation, PV conversion parameters of the cells (spectral response, weak light performance, temperature coefficients, degradation) considerably depends on the quality of the input data applied (derived from literature, data
sheets, norms, software tools, or own measurements). The contribution gives an overview of the processes involved, the relevant parameters, the accuracy achievable and the impact on yield prediction.
Lessons Learnt from Photovoltaics in Urban Areas
Creators: name: Munro, D.K.
name: Rudkin, E.
name: Gaiddon, B.
name: Lindner, S.
name: Elswijk, M.
name: Ter Horst, E.
name: Hagemann, I.B.
name: Suna, D.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Deployment
PV Markets

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3743-3748
description: This paper outlines the results of a wide ranging review of urban areas where PV has been successfully implemented or where plans to implement PV are being prepared. The areas reviewed ranged from those where the planning priorities for an area are still being shaped to those where large numbers of PV buildings were installed over 10 years ago and issues of maintenance and the impact of occupants’ behaviour can be assessed. All the projects are of a significant size, involving large groups of buildings, and have impacted substantially on the urban area where they are located. The range of countries, project stages and stakeholders involved has been extremely wide and this
has led to the collection of a comprehensive set of lessons learnt and successful methods of promoting the implementation of PV within the urban planning process which are summarized here.
European Photovoltaic RTD and Demonstration Programme
Creators: name: Menna, P.
name: Gambi, R.
name: Hercsuth, A.
name: Gillett, W.
name: Tondi, G.
name: Piontek, A.
name: Anderson, D.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Deployment
PV Markets

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3706-3712
description: Europe is currently dependent on imports for 54% of its energy demand. Dependency has grown from 45% in 1990 due to declining domestic production of oil, gas and coal. The objective of the recent energy and climate change package of the Commission, including the proposal for the renewable energy directive, is to achieve the 2020 European policy objectives. The SET Plan and the European Solar Industrial Initiative aim at creating the necessary framework conditions to drive down the costs of PV technology and bring about a step change in its market take-up. The Framework Programme for Research (FP) and the Intelligent Energy Europe (IEE) Programme of the EU help to ensure that the PV industry maintains and extends its leadership. One of the most important impacts has been the creation of know-how leading to start-up companies. For example, several European companies producing thin-film photovoltaics have their origins in EU funded projects. These programmes and the Solar Industrial initiative are important for the future of the European PV industry, because working at the EU level helps to achieve the critical mass of activities which is needed for
the EU’s PV industries to grow fast enough and to compete effectively in today’s global PV markets. The 7th Framework Programme and the second IEE Programme have both significantly increased budget compared to the previous programmes, and will run for seven years, from 2007 to 2013, with calls planned annually.
PV ERA NET - Towards More Joint Activities in Transnational European PV RTD Programming
Creators: name: Stephan, M.
name: Bastek, H.
name: Bernsen, O.
name: Claverie, A.
name: D'Hondt, K.
name: Angeles Ferre, M.
name: Gutschner, M.
name: Hübner, M.
name: Nowak, S.
name: Oberholzer, S.
name: Ostapczuk, A.
name: Palmblad, L.
name: Pietruszko, S.M.
name: Rochester, P.
name: Schöll, W.
name: Spillioti, P.
name: Sorensen, B.
name: Thomopoulos, S.
name: Urban, R.
name: Zillner, T.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Deployment
PV Markets

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3713-3717
description: PV ERA NET aims at promoting cooperation and coherence of national and regional funding programmes in the field of PV RTD in order to strengthen the European PV RTD landscape. The consortium comprises 19 institutions from 11 states and 2 regions in Europe. The project’s overall objective shall be achieved by a three-step approach ranging from structured information exchange over the assessment of suitable strategies towards implementation of joint activities. Results include programme reports providing great wealth of information and insight into programme contents, approaches and contexts as well as the assessment of barriers and opportunities. Moreover, several concrete joint activities have been implemented, e.g. web-based database on PV RTD projects and a Joint Call for projects in the field of Polymer and Molecular Solar Photovoltaic Cells and Modules.
CISUFLO General Project Presentation
Creators: name: CISUFLO Consortium
Publisher: name: Zenodo
Year: 2021

description: The flooring industry faces several challenges in its transition towards circularity: complex value chain, lack of knowledge exchange along the entire value chain, different national legislation and habits, numerous product types with various raw materials and additives, lifetime varying from a couple of days in the case of event carpets to up to 20 years for comercial flooring. The European Floor Coverings Association (EuFCA) and other participants in the industry – from research institutes, recycling companies and public authorities – have teamed up to create a framework for circular floor coverings to minimise the sector’s environmental impact. Under the EU-funded CISUFLO project, circular solutions will be found. The project includes six pilots focusing on manufacturing, sorting, separating, and recycling laminates, resilient floor coverings and carpets.
Large-Scale PV Project Business in Europe - A Promising Market Segment?
Creators: name: Münch, C.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Deployment
PV Markets

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3763-3764
description: In the last two years, the large-scale PV project market in European countries has been impressive, displaying a high growth rate. According to the findings of the EuPD country market surveys, the years 2007 and 2008 seem to have set a new record for large-scale PV plants in Europe. In this segment, we expect a market volume of about 550 MWp in 2007 and for 2008 of about 630 MWp. This market development is reflected in the average compound annual growth rate of the European project planning companies (e.g. turnkey providers), growing faster than most of the other market participants along the value chain. However, clouds are appearing on the horizon. The future of the two major markets for large-scale projects, Spain and Germany, is highly insecure. Implemented and planned modifications to the feed-in tariffs in both countries cast doubt on their position as the most attractive markets for MW plants. On the other hand, new stars will arise. Italy and Greece are in the starting blocks to take over the European leading positions in the field of large-scale PV plants. But, do these markets have the potential to continue the growth history of the European large scale business? And how will the market participants react to these developments?
The presentation provides answers to the above mentioned questions. EuPD Research will give an overview of the European PV project markets (Germany, Spain, Italy, France) and its participants. The analysis is based on an extensive elicitation of primary data among project planning companies. The results are complemented by the combination of in-depth interviews with solar experts and economic analysis as well as company-specific investigation.
Pattern-transition, microstructure and dynamics in two-dimensional vibrofluidized granular bed
Creators: name: Ansari, I.
name: Alam, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Experiments are conducted in a two-dimensional mono-layer vibrofluidized bed of glass beads, with a goal to understand the transition scenario and the underlying microstructure and dynamics in different patterned-states. At small shaking accelerations ($Γ=Aω^2/g <1$), the particles remain attached with the base of the vibrating container -- this is known as the solid bed (SB). With increasing $Γ$ (at large enough shaking amplitude $A/d$) and/or with increasing $A/d$ (at large enough $Γ$), the sequence of transitions/bifurcations unfolds as follows: SB to BB ("bouncing bed") to LS ("Leidenfrost state") to "2-roll Convection" to "1-roll Convection" and finally to a gas-like state. For a given length of the container, the coarsening of multiple convection rolls leading to the genesis of a "single-roll" structure (dubbed the {\it multi-roll transition}), and its subsequent transition to a granular-gas are two novel findings of this work. We show that the critical shaking intensity ($Γ_{BB}^{LS}$) for "$BB\to LS$"-transition has a power-law dependence on the particle loading ($F=h_0/d$, where $h_0$ is the number of particle layers at rest and $d$ is the particle diameter) and the shaking amplitude ($A/d$). The characteristics of $BB$ and $LS$ states are studied by calculating (i) the coarse-grained density and temperature profiles and (ii) the pair correlation function. It is shown that while the contact network of particles in the BB represents a hexagonal-packed structure, the contact network within the LS resembles a liquid-like state. An unsteadiness of the LS has been uncovered wherein the interface (between the floating-cluster and the dilute gas underneath) and the top of the bed are found to oscillate sinusoidally, with its oscillation frequency closely matching with the frequency of external shaking.
description: 18 pages (Physical Review E)
Opportunities and Risks of Italian PV Deployment
Creators: name: Silvestrini, G.
name: Gamberale, M.
name: Berni, A.
name: Grassi, A.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Deployment
PV Markets

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3718-3722
description: This paper describes the status of Italian PV market analyzing the support from Italian government and the growth of photovoltaic installed plants with the introduction of the Feed-in Law. Regarding the Feed-in Program, the first results and perspectives are discussed, highlighting the differences between the new and the old decrees, the incentive tariffs and the innovative elements.
Moreover, a general overview on the attractive elements and on the barriers of Italian market, will be provided describing the opportunities on investing in photovoltaic power plants in Italy and the risks it may concern. Finally a possible scenario of Italian PV market for the next three years will be discussed.
Numerical investigation of the Free Boundary regularity for a degenerate advection-diffusion problem
Creators: name: Monsaingeon, Léonard
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35R35, 35K65, 35C07, 35D40

description: We study the free boundary regularity of the traveling wave solutions to a degenerate advection-diffusion problem of Porous Medium type, whose existence was proved in \cite{MonsaingonNovikovRoquejoffre}. We set up a finite difference scheme allowing to compute approximate solutions and capture the free boundaries, and we carry out a numerical investigation of their regularity. Based on some nondegeneracy assumptions supported by solid numerical evidence, we prove the Lipschitz regularity of the free boundaries. Our simulations indicate that this regularity is optimal, and the free boundaries seem to develop Lipschitz corners at least for some values of the nonlinear diffusion exponent. We discuss analytically the existence of corners in the framework of viscosity solutions to certain periodic Hamilton-Jacobi equations, whose validity is again supported by numerical evidence.
title: Systems Modifying the Acoustic Properties of Room Furnishings
Creators: name: Szeląg, Agata
name: Baruch-Mazur, Katarzyna
name: Brawata, Krzysztof
Publisher: name: Publishing House of Poznan University of Technology
Year: 2022

description: Vibrations in Physical Systems, 33(1), 2022102-1 - 2022102-8
Polarization operator of a photon in a magnetic field
Creators: name: Katkov, V. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the first order of the fine structer constant, the polarization operator of a photon is investigated in a constant and homogeneous magnetic field at arbitrary photon energies. For weak and strong fields H, compared with the Schwinger critical field, approximate expressions have been found. We consider the pure quantum region of photon energy near the threshold of pair creation, as well as the region of high energy levels where the quasiclassical approximation is valid. The general formula has been obtained for the effective mass of photon with given polarization. It is useful for an analysis of the problem under consideration on the whole and at a numerical work
description: 14 pages
Resonant slow extraction in synchrotrons by using anti-symmetric sextupole fields
Creators: name: Zou, Ye
name: Tang, Jingyu
name: Yang, Jianquan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: This paper proposes a novel method for resonant slow extraction in synchrotrons by using special anti-symmetric sextupole fields, which can be produced by a special magnet structure. The method has the potential in applications demanding for very stable slow extraction from synchrotrons. Our studies show that the slow extraction at the half-integer resonance by using anti-symmetric sextupole field has some advantages compared to the normal sextupole field, and the latter is widely used in the slow extraction method. One of them is that it can work at a more distant tune from the resonance, so that it can reduce significantly the intensity variation of the extracted beam which is mainly caused by the ripples of magnet power supplies. The studies by both the Hamiltonian theory and numerical simulations show that the stable region at the proximity of the half-integer resonance by anti-symmetric sextupole field is much smaller and flatter than the one by standard sextupole field at the third-order resonance. By gradually increasing the field strength, the beam can be extracted with intensity more homogeneous than by the usual third-order resonant method, in the means of both smaller intensity variation and spike in the beginning spill. Similar to the case with a normal sextupole, we derive an empirical formula for the area of the stable region with an anti-symmetric sextupole. One can find that with the same field strength and the same tune distance to the resonance, the area of stable region or the change of the area due to the working point variation in the case of anti-symmetric sextupole is about 1/14 of the one in the case of standard sextupole. The detailed studies including beam dynamic behaviors at the proximity of other resonances, influence of 2-D field error, half-integer stop-band, and resonant slow extraction by using quadrupole field have also been presented.
description: 29 pages, 21 figures, 23 references
Signatures of strong correlation effects in RIXS on Cuprates
Creators: name: Li, Wan-Ju
name: Lin, Cheng-Ju
name: Lee, Ting-Kuo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recently, spin excitations in doped cuprates are measured using the resonant inelastic X-ray scattering (RIXS). The paramagnon dispersions show the large hardening effect in the electron-doped systems and seemingly doping-independence in the hole-doped systems, with the energy scales comparable to that of the antiferromagnetic magnons. This anomalous hardening effect was partially explained by using the strong coupling t-J model but with a three-site term(Nature communications 5, 3314 (2014)). However we show that hardening effect is a signature of strong coupling physics even without including this extra term. By considering the t-t'-t"-J model and using the Slave-Boson (SB) mean field theory, we obtain, via the spin-spin susceptibility, the spin excitations in qualitative agreement with the experiments. These anomalies is mainly due to the doping-dependent bandwidth. We further discuss the interplay between particle-hole-like and paramagnon-like excitations in the RIXS measurements.
description: 7 pages, 6 figures
Status and Perspectives of PV in Italy
Creators: name: De Lillo, A.
name: Li Causi, S.
name: Castello, S.
name: Guastella, S.
name: Paletta, F.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Deployment
PV Markets

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3749-3752
description: This paper analyzes the status and perspectives of the photovoltaic technology in Italy analyzing the market, the most significant sectors of PV power application, the promoting initiatives, the industry status as well as the research and development activities. Photovoltaic is becoming in Italy more and more important. Feed-in tariffs, introduced with the last decree on February 2007, seem to be adequate. Large obstacles for the growing market are smoothed and Italian PV firms are planning to extend their capacities.
In this contest, during the year 2007 the total power of the photovoltaic systems that have been installed in Italy sums to about 70 MWp. Then, a cumulative installed power of about 120 MWp is installed in Italy at the end of 2007, thus resulting in an very consistent annual increase: around 140% !. Moreover, in Italy costs & prices are slowly going down, whereas production of PV cells and modules is quickly growing. In 2007, the expenditure on PV research and demonstration have been about 5 M€, while the ones for market stimulation have been around 20 M€.
title: Analysis of Factors Influencing the Measurement Result of the Reverberant Sound Absorption Coefficient Under Laboratory Conditions
Creators: name: Czapla, Marcjanna
name: Wszołek, Tadeusz
Publisher: name: Publishing House of Poznan University of Technology
Year: 2022

description: Vibrations in Physical Systems, 33(1), 2022103-1 - 2022103-10
IGR J17451-3022: a dipping and eclipsing low mass X-ray binary
Creators: name: Bozzo, E.
name: Pjanka, P.
name: Romano, P.
name: Papitto, A.
name: Ferrigno, C.
name: Motta, S.
name: Zdziarski, A. A.
name: Pintore, F.
name: Di Salvo, T.
name: Burderi, L.
name: Lazzati, D.
name: Ponti, G.
name: Pavan, L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this paper, we report on the available X-ray data collected by INTEGRAL, Swift, and XMM-Newton during the first outburst of the INTEGRAL transient IGR J17451-3022, discovered in 2014 August. The monitoring observations provided by the JEM-X instruments on-board INTEGRAL and the Swift/XRT showed that the event lasted for about 9 months and that the emission of the source remained soft for the entire period. The source emission is dominated by a thermal component (kT~1.2 keV), most likely produced by an accretion disk. The XMM-Newton observation carried out during the outburst revealed the presence of multiple absorption features in the soft X-ray emission that could be associated to the presence of an ionized absorber lying above the accretion disk, as observed in many high-inclination low mass X-ray binaries. The XMM-Newton data also revealed the presence of partial and rectangular X-ray eclipses (lasting about 820 s), together with dips. The latter can be associated with increases in the overall absorption column density in the direction of the source. The detection of two consecutive X-ray eclipses in the XMM-Newton data allowed us to estimate the source orbital period at 22620.5(-1.8,+2.0) s (1σ c.l.).
description: Accepted for publication on A&A
Functional Data Analysis of Amplitude and Phase Variation
Creators: name: Marron, J. S.
name: Ramsay, James O.
name: Sangalli, Laura M.
name: Srivastava, Anuj
Publisher: name: arXiv
Year: 2015
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: The abundance of functional observations in scientific endeavors has led to a significant development in tools for functional data analysis (FDA). This kind of data comes with several challenges: infinite-dimensionality of function spaces, observation noise, and so on. However, there is another interesting phenomena that creates problems in FDA. The functional data often comes with lateral displacements/deformations in curves, a phenomenon which is different from the height or amplitude variability and is termed phase variation. The presence of phase variability artificially often inflates data variance, blurs underlying data structures, and distorts principal components. While the separation and/or removal of phase from amplitude data is desirable, this is a difficult problem. In particular, a commonly used alignment procedure, based on minimizing the $\mathbb{L}^2$ norm between functions, does not provide satisfactory results. In this paper we motivate the importance of dealing with the phase variability and summarize several current ideas for separating phase and amplitude components. These approaches differ in the following: (1) the definition and mathematical representation of phase variability, (2) the objective functions that are used in functional data alignment, and (3) the algorithmic tools for solving estimation/optimization problems. We use simple examples to illustrate various approaches and to provide useful contrast between them.
description: Published at http://dx.doi.org/10.1214/15-STS524 in the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
All-optical production and transport of a large $^6$Li quantum gas in a crossed optical dipole trap
Creators: name: Gross, Ch.
name: Gan, H. C. J.
name: Dieckmann, K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report on an efficient production scheme for a large quantum degenerate sample of fermionic lithium. The approach is based on our previous work on narrow-line $ 2S_{1/2}\rightarrow 3P_{3/2} $ laser cooling resulting in a high phase-space density of up to $3\times10^{-4}$. This allows utilizing a large volume crossed optical dipole trap with a total power of $45\,\textrm{W}$, leading to high loading efficiency and $8\times10^6$ trapped atoms. The same optical trapping configuration is used for rapid adiabatic transport over a distance of $25\,\textrm{cm}$ in $0.9\,\textrm{s}$, and subsequent evaporative cooling. With optimized evaporation we achieve a degenerate Fermi gas with $1.7\times 10^{6}$ atoms at a temperature of $60 \, \textrm{nK}$, corresponding to $T/T_{\text{F}}=0.16\left(2 \right)$. Furthermore, the performance is demonstrated by evaporation near a broad Feshbach resonance creating a molecular Bose-Einstein condensate of $3\times10^5$ lithium dimers.
Discovery of a Supercluster at $z\sim$0.91 and Testing the $Λ$CDM Cosmological Model
Creators: name: Kim, J. -W.
name: Im, M.
name: Lee, S. -K.
name: Edge, A. C.
name: Hyun, M.
name: Kim, D.
name: Choi, C.
name: Hong, J.
name: Jeon, Y.
name: Jun, H. D.
name: Karouzos, M.
name: Kim, D.
name: Kim, J. H.
name: Kim, Y.
name: Park, W. -K.
name: Taak, Y. C.
name: Yoon, Y.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The $Λ$CDM cosmological model successfully reproduces many aspects of the galaxy and structure formation of the universe. However, the growth of large-scale structures (LSSs) in the early universe is not well tested yet with observational data. Here, we have utilized wide and deep optical--near-infrared data in order to search for distant galaxy clusters and superclusters ($0.8
description: Published in ApJL
Quantum Transport of Energy in Controlled Synthetic Quantum Magnets
Creators: name: Bermudez, Alejandro
name: Schaetz, Tobias
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We introduce a scheme that exploits laser cooling and phonon-mediated spin-spin interactions in crystals of trapped atomic ions to explore the transport of energy through a quantum magnet. We show how to implement an effective transport window to control the flow of energy through the magnet even in the absence of fermionic statistics for the carriers. This is achieved by shaping the density of states of the effective thermal reservoirs that arise from the interaction with the external bath of the modes of the electromagnetic field, and can be experimentally controlled by tuning the laser frequencies and intensities appropriately. The interplay of this transport window with the spin-spin interactions is exploited to build an analogue of the Coulomb-blockade effect in nano-scale electronic devices, and opens new possibilities to study quantum effects in energy transport.
Organic Photovoltaic Devices With Fine-Controlled Donor and Acceptor Composition Profiles
Creators: name: Rusu, M.
name: Wiesner, S.
name: Keiper, D.
name: Gasiorowski, J.
name: Meyer, N.
name: Heuken, M.
name: Fostiropoulos, K.
name: Lux-Steiner, M.C.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
New Types of Cells and Modules

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 679-681
description: Organic vapor-phase deposition (OVPDÒ) is used for the preparation of molecular organic solar cells based on a mixed donor:acceptor absorber. The absorber layer consists of donor copper phthalocyanine (CuPc) and the acceptor fullerene C60. The concept of using blend absorbers in organic photovoltaics is further developed by introducing donor:acceptor mixed layers with continuous concentration gradients of the constituent materials. Small
area (~ 0.05…0.5 cm2) organic solar cell devices with gradient-composition CuPc:C60 absorbers show up to 30% higher efficiencies than their references with homogeneously mixed donor:acceptor layers. Large area (~21 cm2)
monolithic photovoltaic mini-modules with the new gradient composition absorbers show about 10% higher efficiency as well as a homogeneous distribution of photovoltaic parameters of the component solar cells.