cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Radiation Cooling Effects on Photovoltaics Module Temperatures with an Alumina Heat Sink of High Infrared Emissivity
Creators: name: Shinagawa, K.
name: Nshimura, M.
name: Hirokawa, S.
name: Muto, Y.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
PV Modules

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3581-3585
description: Radiation cooling effects on photovoltaic module temperatures with heat sink materials of different
infrared emissivity were studied. Basic studies are conducted by comparing a thin and rectangle shape alumina heat
sink with an emissivity value of 0.97, with an isometric copper heat sink with a low emissivity of 0.1, in a supply
electric power range from 3 W to 10 W into resistance heaters simulated photovoltaic module. At the same supply
powers, surface temperatures of the heater with the alumina heat sinks, are significantly lower than those with the
copper heat sinks. At the same saturated temperatures of the heater surfaces, the alumina heat sinks accept larger
supply powers than the copper heat sinks. The relationship between the powers and the demensions
obatinrd from both materials are almost agreement with the relation calculated with Stefan-Boltzmann
equation. In the advanced studies, the alumina heat sink is attached to a photovoltaic module of polycrystalline
silicon. The generation powers with alumina heat sink are up to 26% higher than that without heat sink at the same
ambient temperatures from 35 degree C to 40 degree. Thus, the alumina heat sinks with high emissivity are potential
candidate for forthcoming photovoltaic module cooling.
On the phenomenon of mixed dynamics in Pikovsky-Topaj system of coupled rotators
Creators: name: Gonchenko, Alexander S.
name: Gonchenko, Sergey V.
name: Kazakov, Alexey O.
name: Turaev, Dmitry V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 34C15, 34C23

description: A one-parameter family of time-reversible systems on $\mathbb{T}^3$ is considered. It is shown that the dynamics is not conservative, namely the attractor and repeller intersect but not coincide. We explain this as the manifestation of the so-called mixed dynamics phenomenon which corresponds to a persistent intersection of the closure of stable periodic orbits and the closure of the completely unstable periodic orbits. We search for the stable and unstable periodic orbits indirectly, by finding non-conservative saddle periodic orbits and heteroclinic connections between them. In this way, we are able to claim the existence of mixed dynamics for a large range of parameter values. We investigate local and global bifurcations that can be used for the detection of mixed dynamics.
An Overview of Patent Application Data in the Field of Photovoltaics
Creators: name: Visentin, A.
name: Boero, M.
name: Fratiloiu, S.
name: Königstein, C.
Publisher: name: WIP
Year: 2011
Subjects: PV Taking Off: Large-Scale Deployment
Markets for Large-scale PV

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4569-4572
description: The present study is aimed at giving an update on patent activities in the photovoltaics (PV) field
covering the past 40 years. In this study, the number of patent applications published during this time period,
per year and for the whole period, in several of the most relevant solar cell technologies are analysed. While the
growth of patent filings still coincides with the growth in cell shipments, a shift in the technology for which
patents are applied for can be observed. This is due to a move away from focussing on the cell structures
towards the module design and the periphery structures. Patent filing figures are shown for the different types of
solar cells including polymer and organic solar cells, dye sensitized solar cells, and inorganic solar cells.
Further data will be presented showing the origin of patent applications for inorganic and organic solar cells as
well as for different decades.
Simulation of Microcrystalline Thin-Film Silicon Solar Cells with Integrated AFM Scans
Creators: name: Jandl, C.
name: Dewald, W.
name: Pflaum, C.
name: Stiebig, H.
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; 3154-3157
description: A sophisticated light management is significant for thin-film solar cells based on microcrystalline
silicon (μc-Si:H). The quantum efficiency (QE) and short-circuit current density (JSC) of such solar cells is influenced
by the topology of the nano-textured interfaces. It is well-known that the efficiency of solar cells can be increased by
a rough transparent conductive oxide (TCO) layer. Manufacturing of solar cells with different rough interfaces is a
very time-consuming and expensive process. Therefore, simulations are helpful to calculate the efficiency of solar
cells for rough interfaces to find an optimized texture. To this end, a simulation tool is developed to integrate
different nanostructures at the interfaces, which can be obtained by atomic force microscope (AFM) scans. The
numerical simulations are based on the finite integration technique (FIT) in such a way that AFM scan data can be
incorporated. Parallel computation on high performance computers (HPC) are needed to meet the large
computational amount requirements.
High-Throughput Temporal ALD Al2O3 Passivation as Rear Surface Passivation for Industrial Local Al BSF Si Solar Cells
Creators: name: Vermang, B.
name: Rothschild, A.
name: John, J.
name: Poortmans, J.
name: Mertens, R.
name: Pierreux, D.
name: Huussen, F.
name: Zagwijn, P.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1739-1741
description: A high-throughput temporal atomic layer deposition (ALD) Al2O3 reactor is screened for rear surface
passivation of Si passivated emitter and rear cells (PERCs). It is shown that using (i) an Al2O3 layer ≤ 10 nm, (ii) outgassed
above 500 °C, and (iii) capped with SiNx as rear surface passivation stack for large area screen-printed p-type
Si PERC, leads to an average open circuit voltage (Voc) of 644 mV. There is an obvious gain in Voc of 6.5 mV
compared to SiOx passivated PERC, thanks to enhanced rear surface passivation.
Overcoming the Technological Challenges of Contacting Homogeneous High Sheet Resistance Emitters (HHSE)
Creators: name: Ebong, A.
name: Cooper, I.B.
name: Rounsaville, B.
name: Rohatgi, A.
name: Borland, W.
name: Carroll, A.F.
name: Mikeska, K.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1747-1749
description: Contacting homogeneous high sheet resistance emitter (HHSE) with the current screen-printing (SP)
technology is challenging to the industry. This is due to inability to make uniform HHSE to circumvent local points of
high series resistance, which normally control the series resistance of a solar cell. Because of this, the front Ag paste
must be able to contact emitters with a wide range of sheet resistance to accommodate such non-uniformities. In this
paper we report on successful contacting of HHSE with emitter sheet resistance variation of ≥40-Ω/ with commercial
front Ag paste PV16A from Dupont. We investigated this through the fabrication of cells with emitter sheet resistances
of 65, 75, 85, 95 and 105- contacted with the same SP H-pattern having 65 gridlines and 3 bus bars in order to
assess accurately, without shading effect, the impact of the sheet resistance on open circuit voltage (VOC) and short
circuit current density (JSC). We found that emitter sheet resistance in the range of 65-105-Ω/
low average series resistance (RSERIES) of 0.711-1.05-Ω-cm2 and high fill factor (FF) of 0.768-0.787. The 85 and 95-Ω/
emitter gave the best average efficiency of 18.3%, followed by 18.2% for the 65 and 75 Ω/ 8.1% for the
105-Ω/ is is the first ever screen-printed contact with 18.1% efficiency on 105-Ω/ HHSE. The slightly low FF of
76.8% is due to higher series resistance, which can be attributed to emitter resistance since the gridline spacing used was
not optimized for such high sheet resistance. However, the shunt resistance and ideality factor were excellent, which
suggests the paste is not encroaching the shallow emitter junction.
The Silicon Solar Cells with Laser Fired Back Contacts Obtained by Use of Nd:YAG and Ytterbium Fiber Lasers
Creators: name: Panek, P.
name: Drabczyk, K.
name: Kulesza, G.
name: Zieba, P.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1750-1752
description: In this paper we present processing and characterization of the crystalline silicon solar cells with laserfired
contacts (LFC) prepared on the Al evaporated and screen-printed layers on the back side of the cells. The LFC
were obtained with the use of two lasers: the 10 nanoseconds pulsed Nd:YAG laser with an emitted wavelength of
1064 nm and the pulse energy range between 13 mJ and 848 mJ and the 100 nanoseconds ytterbium fiber laser (YFL)
with a maximum output power of PYFL = 20 W. The results are discussed with the support of scanning electron
microscopy (SEM), which provided information on size and morphology of the particular point contacts. The crosssection
structure and quantitative analysis of the LFC contact regions were studied with the transmission electron
microscopy (TEM). The current-voltage characteristics and spectral response dependences were performed for solar
cells characterization. The best LFC cell with screen-printed layer was obtained with efficiency of 15.16 % for
Nd:YAG laser and 15.80 % efficiency with Al evaporated for YFL.
Sampling Procedures for the Validation of PV Module Output Power Specification
Creators: name: Herrmann, W.
name: Steland, A.
name: Herff, W.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
PV Modules

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3540-3547
description: The question whether the real output power of PV modules lies within manufacturers’ output power
specifications is a key question for planners and installers of PV systems. This paper presents a study of the sampling
procedures for validating PV module output power and suggests how to deal with different situations that may arise in
practice. Two major cases of practical relevance are considered: (a) Validation procedures for newly manufactured PV
modules where available manufacturers’ flash data can be used as a source of information; (b) Validation procedures without
the availability of manufacturers’ flash data and given small populations of 100 to 500 modules, i.e. PV systems up to 100
kWp in size. Regarding case (a), we discuss a new software, APOS, which was developed to calculate sampling plans and to
enable recipients of module shipments to use measurement results from independent test labs in deciding to accept or reject
the shipments. We also present a statistical approach to the question of whether manufacturers’ flash data are reliable or not.
Regarding case (b), we propose a procedure for calculating sampling plans and a practical method for deciding whether the
population meets the manufacturers’ specifications or not. In particular, we also consider degradation effects as specified by
the manufacturers output power warranties when evaluating modules from installed PV systems. Our findings can be applied
to harmonise sampling procedures for the output power validation of PV modules.
Design Evaluation of 150 PV Boats
Creators: name: Gorter, T.
name: Voerman, E.
name: Joore, P.
name: Reinders, A.H.M.E.
name: Van Houten, F.J.A.M.
Publisher: name: WIP
Year: 2011
Subjects: PV Systems
Off-grid Applications

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4038-4043
description: In order to evaluate PV boat design parameters, we collected and evaluated the properties of 150 boats for
commercial, recreational and private purposes. We evaluated PV boat design problems which lead to
recommendations for improved designs of PV integrated boats. Among others, the hull choice may vary for different
situations in which a boat is used; therefore a right hull needs to be selected carefully fitting sailing circumstances.
From this evaluation followed that PV boats under 10 meters are most feasible to be equipped with preferably low
weight PV modules of approximately 2kWp for electric propulsion. From our evaluation followed that most boats are
equipped with PV with a surface area between 5m2 and 10m2 (78%). Boat lengths between 4m and 8m are most
common (54%). Most boats weigh up to 1000kg (56%). However, a large share of PV boats weighs much more: up to
85 000kg. Best performing PV boats -when considering speed and electrical efficiency- weigh around 250kg. The
latter have a weight-to-PV-ratio of around 1:2. In general, we notice under dimensioned PV systems installed on PV
powered boats. For good performance, PV boats should have a weight-to-engine-ratio between 1:5 and 3:5 and a
length-to-beam-ratio between 5:1 and 5:2. In order to further increase PV boat performance, a multidisciplinary
design approach need to be developed which does not only take the PV system’s electrical properties into account,
but also others, including the PV system’s physical properties.
A study on the effect of Quality of Service (QoS) on enterprise cloud storage service adoption
Creators: name: SIKANDAR, AWAIS
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Other information and computing sciences not elsewhere classified

description: Evaluating and understanding the factors affecting enterprise cloud computing services in terms of Quality of Service (QoS) was the main aim of this research. In the research, the cloud services, such as Google Drive, OneDrive and Dropbox, were given exclusive scrutiny. The conceptual framework depicted the QoS perception of users in enterprise cloud storage service influences customer satisfaction through the functional and non-functional parameter of personal cloud storage service. Secondary and primary data were included for meeting the research aim and objectives. Interview and survey were the used primary data collection strategies. Detailed and critical literature reviews on cloud computing, QoS in Cloud Computing and Service Quality and Cloud Service Quality have bee elaborated. The purpose of this research is to contribute new knowledge of personal cloud computing. There is a need to incorporate QoS characteristics in the evaluation of cloud storage services for personal users. This study will be a contribution to that—the research aided to understand the current trends in cloud services. For example, the newest trend in the IT world is cloud computing. On-demand obtainability of computer systems resources regardless of locations, is the key feature of cloud computing. Microsoft’s Windows Azure platform, Google Drive, Amazon’s web services are part of this trend. Primary data or results also highlight this trend. The quality and reliability of services were regarded to be the most critical attributes of quality of service and those of privacy concerning the cloud services, that could understand from literature and findings. Another aim of the study was evaluating cloud services (CS) based on critical attributes of QoS and user requirements such as privacy and security. QoS manages the data traffic for reducing the packet loss or jitter in the network and for accessing the security and privacy many attributes like privacy, data integrity and confidentiality are needed to be considered. An important recommendation provided at the end of the study was that service providers could extend measures by which the evolving needs of customers could be addressed such, as the need for an increased storage option.
Transcriptome of D. catenatum protocorms symbiosis with Si fungus
Creators: name: 韩佳嘉(Jia-Jia Han)
Publisher: name: CNGB
Year: 2024
Subjects: Transcriptome or Gene expression
Monoisolate
Environmental

description: The samples of aseptic D. catenatum protocorms (Control) and D. catenatum protocorms inoculated with S. indica (Si) for 9 days were collected in liquid nitrogen and then used for transcriptome analysis.
Fluorine Chamber Cleaning for AKT® and KAI® PECVD Tools
Creators: name: Petri, S.
name: Stockman, P.
name: Cigal, J.-C.
name: Beyer, W.
name: Stiebig, H.
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; 3177-3180
description: Different chamber cleaning processes for plasma enhanced chemical vapor deposition using on-site
generated molecular fluorine are presented. For the first time in thin film PV industry molecular fluorine has been
introduced as cleaning gas at Malibu’s production site in Osterweddingen, Germany. Due to its weak bond strength
and lack of competing kinetic pathways upon dissociation, fluorine can be simply activated for PECVD chamber
cleaning using just in situ plasma instead of remote plasma and still achieve fast cleaning. The elimination of remote
plasma sources (RPS) will reduce initial capital costs and expensive preventive maintenance costs. We compare RPS
vs. in situ F2 plasma cleaning on an Applied Materials AKT® 15k tool, and we also compare chamber cleaning using
in situ SF6/O2 vs. F2 plasma on an Oerlikon KAI® tool. Furthermore, because of its high reactivity, particularly with
silicon, direct molecular fluorine cleaning, without any external activation, has been investigated. Very high cleaning
rates have been achieved at temperature and pressure conditions suitable for industrial applications.
Das Prinzip vom Ganzen und seinen Teilen und die freie Verfügung des Menschen über sich selbst
Creators: name: Hamelin, Alonzo-M.
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 2 Nr. 5 (1966): Concilium: Internationale Zeitschrift für Theologie, Band 2, Heft 5
Is the Distribution Grid Ready to Accept Large Scale Photovoltaic Deployment? - State of the Art, Progress and Future Prospects -
Creators: name: Braun, M.
name: Stetz, T.
name: Bründlinger, R.
name: Mayr, C.
name: Hatta, H.
name: Kobayashi, H.
name: Ogimoto, K.
name: Kroposki, B.
name: Mather, B.
name: Coddington, M.
name: Lynn, K.
name: Graditi, G.
name: Woyte, A.
name: MacGill, I.
Publisher: name: WIP
Year: 2011
Subjects: PV Systems
Large PV Power Plants and Distributed PV: System Aspects and Grid Connection

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 3840-3853
description: The installed capacity of photovoltaic systems has recently increased at a much faster rate than the development of grid codes
to effectively and efficiently manage high penetrations of PV within the distribution system. In a number of countries, PV
penetrations in some regions are now raising growing concerns regarding integration. Management strategies vary
considerably by country - some still have an approach that photovoltaic systems should behave as passive as possible while
others demand an active participation in grid control. This variety of grid codes also causes challenges in learning from ‘best
practice’. This paper provides a review of current grid codes in some countries with high PV penetrations. In addition, the
paper presents a number of country-specific case studies on different approaches for improved integration of photovoltaic
systems in the distribution grid. In particular, we consider integration approaches using active and reactive power control that
can reduce or defer expensive grid reinforcement while supporting higher PV penetrations.
Nuclear symmetry energy in a modified quark meson coupling model
Creators: name: Mishra, R. N.
name: Sahoo, H. S.
name: Panda, P. K.
name: Barik, N.
name: Frederico, T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study nuclear symmetry energy and the thermodynamic instabilities of asymmetric nuclear matter in a self-consistent manner by using a modified quark-meson coupling model where the confining interaction for quarks inside a nucleon is represented by a phenomenologically averaged potential in an equally mixed scalar-vector harmonic form. The nucleon-nucleon interaction in nuclear matter is then realized by introducing additional quark couplings to $σ$, $ω$, and $ρ$ mesons through mean-field approximations. We find an analytic expression for the symmetry energy ${\cal E}_{sym}$ as a function of its slope $L$. Our result establishes a linear correlation between $L$ and ${\cal E}_{sym}$. We also analyze the constraint on neutron star radii in $(pn)$ matter with $β$ equilibrium.
Drag and Diffusion of Heavy Quarks in a hot and anisotropic QCD medium
Creators: name: Srivastava, P. K.
name: Patra, Binoy Krishna
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The propagation of heavy quarks (HQs) in a medium was quite often modeled by the Fokker-Plank (FP) equation. Since the transport coefficients, related to drag and diffusion processes are the main ingredients in the FP equation, the evolution of HQs is thus effectively controlled by them. At the initial stage of the relativistic heavy ion collisions, asymptotic weak-coupling causes the free-streaming motions of partons in the beam direction and the expansion in transverse directions are almost frozen, hence an anisotropy in the momentum space sets in. Since HQs are too produced in the same time therefore the study of the effect of momentum anisotropy on the drag and diffusion coefficients becomes advertently desirable. In this article we have thus studied the drag and diffusion of HQs in the anisotropic medium and found that the presence of the anisotropy reduces both drag and diffusion coefficients. In addition, the anisotropy introduces an angular dependence to both the drag and diffusion coefficients, as a result both coefficients get inflated when the partons are moving transverse to the direction of anisotropy than parallel to the direction of anisotropy.
description: 9 pages, 6 figures
An Industrially Applicable Honeycomb Texture
Creators: name: Nievendick, J.
name: Specht, J.
name: Zimmer, M.
name: Zahner, L.
name: Glover, W.
name: Stüwe, D.
name: Biro, D.
name: Rentsch, J.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1722-1725
description: A new method for creating a honeycomb texture has been found. It uses a directly printed inkjet mask
and isotropic wet chemical etching through it. A special printing pattern has been designed so that structures smaller
than the droplet diameter could be printed. After etching it yields a hexagonal honeycomb texture with etch pits of 23
um depth and a pitch of 50 um. The weighted reflection is 18.4 % and is hence considerably lower than most other
honeycomb textures. As inkjet-printing is an already well-established, cheap and fast process this method can be
easily established industrially.
A giant quiescent solar filament observed with high-resolution spectroscopy
Creators: name: Kuckein, C.
name: Verma, M.
name: Denker, C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A giant, quiet-Sun filament was observed with the high-resolution Echelle spectrograph at the Vacuum Tower Telescope at Observatorio del Teide on 2011 November 15. A mosaic of spectra (10 maps of 100" X 182") was recorded simultaneously in the chromospheric absorption lines H-alpha and Na I D2. Physical parameters of the filament plasma were derived using Cloud Model (CM) inversions and line core fits. The spectra were complemented with full-disk filtergrams (He I 10830 A, H-alpha, and Ca II K) of the Chromspheric Telescope (ChroTel) and full-disk magnetograms of HMI. The filament had extremely large linear dimensions (817"), which corresponds to about 658 Mm along a great circle on the solar surface. A total amount of 175119 H-alpha contrast profiles were inverted using the CM approach. The inferred mean line-of-sight (LOS) velocity, Doppler width, and source function were similar to previous works of smaller quiescent filaments. However, the derived optical thickness was larger. LOS velocity trends inferred from the H-alpha line core fits were in accord, but smaller, than the ones obtained with CM inversions. Signatures of counter-streaming flows were detected in the filament.The largest conglomerates of brightenings in the line core of Na I D2 coincided well with small-scale magnetic fields as seen by HMI. Mixed magnetic polarities were detected close to the ends of barbs. The computation of photospheric horizontal flows based on HMI magnetograms revealed flow kernels with a size of 5-8 Mm and velocities of 0.30-0.45 km/s at the ends of the filament. The physical properties of extremely large filaments are similar to their smaller counterparts, except for the optical thickness which in our sample was found to be larger. We found that a part of the filament, which erupted the day before, is in the process of reestablishing its initial configuration.
description: Accepted for publication in Astronomy & Astrophysics, 12 pages, 12 figures
Light-Trapping Enhancement by Diffractive Textures for Thin-Film Silicon Solar Cells
Creators: name: Van Erven, A.J.M.
name: Rutten, J.
name: Van Der Hofstad, G.
name: De Groot, H.
name: Steltenpool, M.
name: De Ruijter, J.
name: Titulaer, B.
name: Borg, H.
name: Rajeswaran, G.
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; 3181-3184
description: In this work the growth of thin film silicon solar cells on 2D gratings is studied in order to explore the
benefits of using diffractive textures. The TCO growth on 2D grating samples is therefore investigated as a function
of ZnO:Al thickness and compared with the growth on bare glass (flat reference). The samples were evaluated on
their light-trapping ability and compared with Asahi U-type TCO which acts as a reference with random texture. The
thin-film stack configurations of samples that showed the highest light-trapping ability were used for amorphous
silicon solar cell processing and it was demonstrated that using 2D textured glass in combination with an optimized
front TCO surpasses the performance of the random textured Asahi reference.
Else, an Eventual Return to Conventional Energy: Impacts and Fate of an Off-Grid Rural Electrification Project in an Island in the Philippines
Creators: name: Hong, G.W.
name: Abe, N.
name: Baclay, M.
Publisher: name: WIP
Year: 2011
Subjects: PV Systems
Off-grid Applications

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4052-4056
description: In line with improving energy access for the rural areas while providing environment-friendly energy,
renewable energy systems (RESs) have been promoted extensively. There are however several challenges concerning
the sustainability of these systems such as technical complexities, high costs, and social compatibility. This paper
outlines the service-life performance of an existing off-grid Solar PV System in a small rural island (Pangan-an Island,
Philippines). As the plant approaches its end-of-life, the technical, economic, and social investigations point towards
the feasibility of several decision options as to how to extend and sustain the service life of the plant.
Ultra-low birefringence dodecagonal vacuum glass cell
Creators: name: Brakhane, Stefan
name: Alt, Wolfgang
name: Meschede, Dieter
name: Moon, Geol
name: Robens, Carsten
name: Alberti, Andrea
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We eport on an ultra-low birefringence dodecagonal glass cell for ultra-high vacuum applications. The epoxy-bonded trapezoidal windows of the cell are made of SF57 glass, which exhibits a very low stress-induced birefringence. We characterize the birefringence $Δn$ of each window with the cell under vacuum conditions, obtaining values around $\num{e-8}$. After baking the cell at $\SI{150}{\degreeCelsius}$, we reach a pressure below $\SI{e-10}{\milli \bar}$. In addition, each window is antireflection coated on both sides, which is highly desirable for quantum optics experiments and precision measurements.
description: Will be published in Review od Scientific Instruments
Tilt Angles of Solar Filaments over the Period 1919-2014
Creators: name: Tlatov, A. G.
name: Kuzanyan, K. M.
name: Vasil'yeva, V. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The spatial and temporal distributions of solar filaments were analyzed using data from the Meudon Observatory for the period 1919-2003 and the Kislovodsk Mountain Astronomical Station for the period 1979-2014. We scanned $H_α$ solar synoptic charts on which the filaments were isolated and digitized. The data on each filament comprise its location, length, area, and other geometrical characteristics. The temporal distributions of the number and total length of the filaments have been obtained. We also found latitudinal migration of filament locations with the solar cycle, and analyzed the longitudinal distribution and asymmetry of filaments in the northern and southern hemispheres, and other properties of their distribution. The tilt angles of filaments with respect the solar equator ($τ$) were analyzed. On average, the eastern tips of filaments are closer to the poles than the western ones ($τ\sim 10^\circ$). On the other hand, the filaments in the polar regions ($θ>50^\circ$, where $θ$ is the latitude) usually have negative tilts ($τ<0^\circ$). The tilt angles vary with the phases of the 11 year sunspot cycle and are at their highest values in the epoch of the activity maximum. In the century-long modulation of the solar activity (Gleissberg cycle), the mean tilt angles of filaments in the mid-latitude zone ($θ\sim \pm 40^\circ$) were maximum in the middle of the 20th century in solar sunspot cycles 18-19. We hereby propose using the statistical properties of solar filaments as an additional coherent measure of manifestation of the solar cycle which covers all latitudes and for which almost a century long systematically calibrated data series is available.
description: 10 pages, 13 figures
Fatigue behaviour of Glass-Fiber-Reinforced Polymers Numerical versus experimental characterisation
Creators: name: B. Alcayde
name: Cornejo, A.
name: Jiménez, S.
name: Barbu, L.G.
name: M. Merzkirch
name: E. Marklund
Publisher: name: Zenodo
Year: 2023

description: Presentation delivered by Bàrbara Alcayde from CIMNE during the 17th International Conference on Computational Plasticity, Fundamentals and Applications (COMPLAS) taking place from 5 – 7 of September in Barcelona, Spain.
description: The Fatigue4Light project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 101006844
Comparison of Water Vapor to Ozone for Growth ALD Films
Creators: name: Spiegelman, J.
name: Sundqvist, J.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1694-1698
description: The application of a backside passivation layer is an important step in the manufacture of crystalline
solar cells. The ALD process involved requires an oxidation step using either water or ozone. Ozone is costly,
equipment intensive and hazardous, making water vapor more attractive. A new technology for generating and
delivering water vapor at the high flow rate required was evaluated. Results from using this water vapor were
compared to those using ozone. Al2O3 films grew 14% with water vapor when compared to films grown under the
same conditions with ozone.
Novel Wet Chemical Approach for Nano-Texturization of Mono and Multi Crystalline Silicon for Solar Cell Applications
Creators: name: Srivastava, S.K.
name: Sharma, P.
name: Vandana,
name: Singh, P.K.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1699-1702
description: We report a simple process for relatively fast nano-scale texturing of silicon (both mono and multi-crystalline)
wafers over large area (125x125 mm2) using Ag catalyzed wet chemical etching in aq. HF and H2O2 solution. Fine textured
surface with black appearance could be observed in about 30 seconds of etching time. The surface reflectivity less than 3% in
400-1000 nm range is achieved for both c-Si and mc-Si surfaces. The n+-p-p+ structure based solar cells have been fabricated
on such nano-textured silicon substrates (both c-Si and mc-Si) following standard cell fabrication protocol. A considerable
increase in the short circuit current (>20%) has been observed in both c-Si and mc-Si nano-textured cells as compared to the
respective reference cell without nano-texturing. The other cell performance parameters namely fill factor, open circuit
voltage were not affected by nano-texturing. The silver catalyzed electro-less nano-texturing is a simple, fast and low cost
process to realize effective low reflective silicon surface which has potential for silicon solar cells.
Failure Analysis Methods Applied to PV Module Reliability
Creators: name: Gambogi, W.J.
name: McCord, E.F.
name: Rosenfeld, H.D.
name: Senigo, R.H.
name: Peacock, S.
name: Stika, K.M.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
PV Modules

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3530-3534
description: In the testing of photovoltaic materials and modules, failure mode analysis (FMA) provides insights
into the specific mechanism of performance breakdown and offers opportunities to improve performance by
materials, process and design modification. We review several analytical methods applied to the failure mode
analysis of a photovoltaic module and test structures to better understand the nature of the failure including several
methods not previously discussed in the FMA literature applied to photovoltaic devices. Included in this discussion
will be the use of environmental scanning electron microscopy (ESEM) and x-ray microtomography to investigate
the failure mechanism in electrical impulse testing of a candidate PV module.
Solar PV Electricity : The Input for Ecotourism
Creators: name: Ghosh, B.
name: Bardhan, S.
name: Hazra, K.
Publisher: name: WIP
Year: 2011
Subjects: PV Systems
Off-grid Applications

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4061-4063
description: It was reported that the developing countries are overburdened with the problems like; i. Rapid population
growth, ii. Immense workforce-Pressure, iii. Lack of capital for developing infrastructure for economic growth and iv.
Overloading on economics due to foreign debts. These lead to the over-exploitation on the natural resources, expansions
of agriculture, forestry and aquaculture. One of the inputs for economic development of these countries may be
ecotourism as these countries having the potentials for developing tourism sites. Ecotourism can attract the people on the
tourism site and flow of tourists put impact on ecology, economy, and empowerment. Most of the ecotourism sites are
located at the off-grid areas and the means of energy supply is to carry conventional fuel resources at those sites.
Carrying of fuel at the tourist site involved both cost and at the same time putting constraint in fulfilling the requirement
of eco-tourism. Solar energy in general and solar PV in particular is another option for supplying quality power to these
eco-tourist sites as the developing countries are rich in sunshine. Applications of PV power systems at these eco-tourist
sites fulfill the requirements for eco-tourism. This paper discusses the about the possibilities of eco-tourism using PV
technology in a remote island village in Bay of Bengal.
Separately continuous functions on products and its dependence on $\aleph$ coordinates
Creators: name: Mykhaylyuk, V. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics

description: It is investigated necessary and sufficient conditions on topological spaces $X=\prod\limits _{s\in S}X_s$ and $Y=\prod\limits _{t\in T}Y_t$ for the dependence of every separately continuous functions $f:X\times Y\to \mathbb R$ on at most $\aleph$ coordinates with respect to the first or the second variable.
Multi-orbital quantum antiferromagnetism in iron pnictides --- effective spin couplings and quantum corrections to sublattice magnetization
Creators: name: Ghosh, Sayandip
name: Raghuvanshi, Nimisha
name: Mohapatra, Shubhajyoti
name: Kumar, Ashish
name: Singh, Avinash
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Towards understanding the multi-orbital quantum antiferromagnetism in iron pnictides, effective spin couplings and spin fluctuation induced quantum corrections to sublattice magnetization are obtained in the $(π,0)$ AF state of a realistic three band interacting electron model involving $xz$, $yz$, and $xy$ Fe 3d orbitals. The $xy$ orbital is found to be mainly responsible for the generation of strong ferromagnetic spin coupling in the $b$ direction, which is critically important to fully account for the spin wave dispersion as measured in inelastic neutron scattering experiments. The ferromagnetic spin coupling is strongly suppressed as the $xy$ band approaches half filling, and is ascribed to particle-hole exchange in the partially filled $xy$ band. The strongest AF spin coupling in the $a$ direction is found to be in the orbital off diagonal sector involving the $xz$ and $xy$ orbitals. First order quantum corrections to sublattice magnetization are evaluated for the three orbitals, and yield a significant $37\%$ average reduction from the Hartree-Fock value.
description: 17 pages, 4 figures
High Conversion Efficiency above 18% on Non-Selective Emitter Screen-Printed Crystalline Silicon Solar Cells
Creators: name: Dhamrin, M.
name: Nagashima, S.
name: Suzuki, S.
name: Kamisako, K.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1703-1706
description: New silver paste produced with improved chemistry is introduced. High efficiencies are obtained and
low power loss is realized. The volume resistivity of our silver paste is found to be 4.23×10-6 cm indicating the
excellent silver conductivity. The optimal screen-printing conditions are found to be 200 mm/sec for the printing
speed and 0.2 MPa for the squeegee pressure. High efficiency solar cells output characteristics were realized in
monocrystalline silicon solar cells. High FF above 0.81 was realized indicating the excellent ohmic contacts of our
silver pastes. SunsVoc measurement shows that the reason behind such improvement is the low leak current J02 in
addition to the low series resistance.
Performance Evaluation of Solar Photovoltaic Lighting and Water Pumping Systems in India
Creators: name: Sastry, O.S.
name: Agarwal, S.
name: Adiraju, D.
name: Kumar, R.
name: Bandyopadhyay, B.
Publisher: name: WIP
Year: 2011
Subjects: PV Systems
Off-grid Applications

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4048-4051
description: Solar Energy Centre (SEC) is the technical division of the Ministry of New and Renewable Energy India and is
involved in design, development, evaluation and certification of PV systems.SEC has developed PV systems for variety of
applications. The paper presents major findings of studies carried out at SEC on pumping and lighting applications. Nine
different kinds PV water pumping systems (WPS), and over twelve different design of LED based PV lighting systems are
studied. The important observation in water pumps is the optimisation of efficiency for a given pump capacity & type against
PV array size. In lighting application, the advantages LED based PV lighting systems over conventional CFL based systems
PV lighting systems are discussed.
Statistics of Farmers' Marketing and Purchasing Cooperatives, 1941-42 Marketing Season
Creators: name: Elsworth, R. H.
name: Wanstall, Grace
name: Elsworth, R. H.
name: Wanstall, Grace
Publisher: name: Unknown
Year: 1943
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Farm Management
subject: Financial Economics
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: Contents: Number of associations; Membership and shareholders; Cooperative dollar business; Significant changes; Cotton and cotton products; Dairy products; Fruits, vegetables, and nuts; Grain, dry beans, and rice; Livestock; Poultry and eggs; Wool and mohair; Miscellaneous products; Farmers' purchasing associations; Relative importance of cooperative groups; Cooperative statistics.
Characterization and Comparison of PV-Modules Regarding Indoor and Outdoor Concepts
Creators: name: Zamini, S.
name: Rennhofer, M.
name: Berger, K.
name: Krametz, T.
name: Leidl, R.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
PV Modules

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3535-3539
description: Problems in measuring PV-modules may be caused by spectral mismatch, sweep-time effects, direction of IV
measurements and capacitive effects, light soaking and pretreatment. Well defined and reproducible procedures for the
electrical characterization of PV-modules are essential for outdoor and indoor measurements. The focus is on the effect of
the variable spectral distribution of the irradiance due to varying atmospheric conditions on the module characteristics. The
measurements show a change of the amount of light with wavelength >717nm and <534nm, representing the spectral regions
resulting in the largest changes of module performance. Further, the results of outdoor characterizations for different PV
technologies and the deviation between outdoor and indoor precision measurements of PV-modules are presented. An
approach for comparative indoor and outdoor measurement concepts is discussed.
Is the IEC 61646 - 10.15 Test Reliable?
Creators: name: Roth, F.
name: Krull, S.
name: Günster, J.
name: Sinicco, I.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
PV Modules

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3553-3556
description: Wet leakage is one of the most frequent failure causes in the IEC 61646 test sequences [1]. Although
the wet leakage test procedure is almost precisely described in the IEC 61646 norm (paragraph 10.15), different
values for the leakage currents of identical samples following the norm procedures have been measured by the
Module Test and Reliability Center (MTRC) at Oerlikon Solar. Experiments to find the root cause for the
discrepancy as well as the critical parameters in the experimental setup have been conducted. There is a clear
indication that the influence of one parameter, the temperature of the bath, on the final measured result is clearly
underestimated by the IEC norm. Furthermore it was discovered that the main paths contributing to the leakage
current are through the glasses. The implications of these findings are discussed.
A Risk Assessment of Wet Chemical Metallization Process Candidates for Production Implementation
Creators: name: Letize, A.
name: Cullen, D.P.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1707-1710
description: Silicon PV cell manufacturers are motivated to introduce new cell processing technologies in an effort
to reach grid parity while still maintaining an acceptable profit. As a result, next generation cell designs are in
development which utilize wet chemical metal deposition to replace silver paste as the electrical contacts and
conductors. The widespread adoption of these processes is imminent, but there is uncertainty about which cell
designs and associated chemical processes are the most production friendly, highest yield, and most economically
viable. This study introduces proposed process sequences for standard industrial cell designs which can make use of
chemical metallization technologies. Some chemical deposition processes still face technical obstacles and will
require additional improvements in order to become production-ready solutions. A detailed discussion of the risks,
and potential rewards that will result from overcoming these obstacles, is presented.
Phonon instability of insulating states in optical lattices
Creators: name: Yukalov, V. I.
name: Ziegler, K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The influence of collective phonon excitations, due to intersite atomic interactions, on the stability of optical lattices is analyzed. These phonon excitations are shown to essentially reduce the ability of atoms to be localized. The states that seem to be insulating in the absence of the phonon excitations can become delocalized when the latter are present. The delocalization effect exists for both long-range as well as local atomic interactions.
description: Latex file, 9 pages, 1 figure
Contact Materials Development for n-Type Silicon and Successful Scaling Up in Mass Production
Creators: name: Zhang, W.
name: Guo, T.
name: Jiao, A.H.
name: Yan, H.Z.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1720-1721
description: N-Type wafer surfaces are normally passivated with thin oxide (Silicon oxide or Aluminum oxide)
layers rather than SiNx in conjunction with SiNx layer as anti-reflective coating on front surface. With the more
effective passivation of metal oxide that reduce surface recombination velocity solar cell efficiency pass 20% in
production. There comes the challenge for contact materials to penetrate both silicon nitrite and specially oxide
passivation layers. This paper is going to discuss about the new approach to solve this issue and its achievement in
commercial mass production.