cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Epitaxial Thin Film Silicon Solar Cells with Efficiencies Up to16.9% by Combining Advanced Light Trapping Methods and CVD Emitters
Creators: name: Van Nieuwenhuysen, K.
name: Récaman-Payo, M.
name: Kuzma Filipek, I.
name: Van Hoeymissen, J.
name: Poortmans, J.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Thin Films Solar Cells
Thin Film Crystalline Silicon Solar Cells and Wafer Equivalents

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2357-2361
description: Epitaxial thin film silicon solar cell technology, consisting of a thin high quality epitaxial stack on top
of a non-active highly doped low-cost silicon substrate, is one of the most promising midterm alternatives for cost
effective industrial solar cell manufacturing. In this work, chemical vapor deposition (CVD) is used as a deposition
technique for a complete solar cell structure including a BSF, base and emitter. CVD, compared to other techniques,
allows the growth of almost any doping profile designed as desired to optimize the emitter and base properties. In this
paper, three different solar cell concepts will be discussed and analyzed. Each of them integrates a CVD grown emitter
in a cell structure with advanced light trapping schemes formed by a porous silicon reflector at the epi-substrate
interface and a textured front surface. Cell results up to 16.9% are obtained for a rear emitter concept with a 25μm
thick, n-doped active base.
Impact of Laser Treatment on Phosphoric Acid Coated Multicrystalline Silicon PV-Wafers
Creators: name: Geier, M.
name: Eberstein, M.
name: Grießmann, H.
name: Partsch, U.
name: Voelkel, L.
name: Böhme, R.
name: Mann, G.
name: Bonse, J.
name: Krüger, 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; 1243-1247
description: The selective emitter is a well-known technology for producing highly doped areas under the
metallization grid to improve the solar cell performance. In this work, the influence of laser irradiation on phosphoric
acid coated multicrystalline silicon PV-wafers on the wafer surface structure, the phosphorous depth distribution and
the electrical contact resistance within the laser treated area as well as the electrical series resistance of laserprocessed
solar cells was evaluated. Different laser processing settings were tested including pulsed and continuous
wave (cw) laser sources (515 nm, 532 nm, 1064 nm wavelength). Complementary numerical simulations using the
finite element method (FEM) were conducted to explain the impact of the laser parameters on the melting behavior
(melt duration and geometry). It was found that the melt duration is a key parameter for a successful laser doping
process. Our simulations at a laser wavelengths of 515 nm reveal that low-repetition rate (<500 kHz) laser pulses of
300 ns duration generate a melt duration of ~0.35 μs, whereas upon scanning cw-laser radiation at 532 nm
prolongates the melt duration by at least one order of magnitude. Experimentally, the widely used ns-laser pulses did
not lead to satisfying laser irradiation results. In contrast, cw-laser radiation and scan velocities of less than 2 m/s led
to suitable laser doping featuring low electrical resistances in the laser treated areas.
Predicting Mercury's Precession using Simple Relativistic Newtonian Dynamics
Creators: name: Friedman, Y.
name: Steiner, J. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Physics (physics.gen-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a new simple relativistic model for planetary motion describing accurately the anomalous precession of the perihelion of Mercury and its origin. The model is based on transforming Newton's classical equation for planetary motion from absolute to real spacetime influenced by the gravitational potential and introducing the concept of influenced direction.
description: 5 pages
Noise Spectroscopy and Microplasma Analysis for c-Si Solar Cells Differing in Emitter Formation
Creators: name: Vanek, J.
name: Dolensky, J.
name: Luňnak, M.
name: Poruba, A.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Characterisation and Modelling

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1442-1445
description: Three sets of c-Si solar cells varying in front side phosphorus doped emitters were produced by
standard screen printing technique. This paper brings the comparison of solar cell conversion efficiency and results
from a noise spectroscopy and microplasma presence. As it was already shown in previous publications [1-3] noise
spectral density reflects the quality of solar cells and thus it represents an alternative advanced cell diagnostic tool.
Our results confirm this relationship and moreover bring the clear evidence for the maximum spectral noise voltage
density being related with the emitter structure. The best results were reached for a group of solar cell with selective
emitter structure prepared by double phosphorus diffusion process.
How Much Cache is Needed to Achieve Linear Capacity Scaling in Backhaul-Limited Dense Wireless Networks?
Creators: name: Liu, An
name: Lau, Vincent
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Dense wireless networks are a promising solution to meet the huge capacity demand in 5G wireless systems. However, there are two implementation issues, namely the interference and backhaul issues. To resolve these issues, we propose a novel network architecture called the backhaul-limited cached dense wireless network (C-DWN), where a physical layer (PHY) caching scheme is employed at the base stations (BSs) but only a fraction of the BSs have wired payload backhauls. The PHY caching can replace the role of wired backhauls to achieve both the cache-induced MIMO cooperation gain and cache-assisted Multihopping gain. Two fundamental questions are addressed. Can we exploit the PHY caching to achieve linear capacity scaling with limited payload backhauls? If so, how much cache is needed? We show that the capacity of the backhaul-limited C-DWN indeed scales linearly with the number of BSs if the BS cache size is larger than a threshold that depends on the content popularity. We also quantify the throughput gain due to cache-induced MIMO cooperation over conventional caching schemes (which exploit purely the cached-assisted multihopping). Interestingly, the minimum BS cache size needed to achieve a significant cache-induced MIMO cooperation gain is the same as that needed to achieve the linear capacity scaling.
description: 14 pages, 8 figures, accepted by IEEE/ACM Transactions on Networking
Product-Integrated PV and Innovative Product Design
Creators: name: Reinders, A.H.M.E.
name: De Boer, A.
Publisher: name: WIP
Year: 2011
Subjects: PV Systems
Off-grid Applications

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4148-4150
description: In this paper we will assess PV-powered products which have been design by seventeen teams of
students of the Studies of Industrial Design Engineering at University of Twente in the Netherlands. The design
project took place during 10 weeks from September 2010 until November 2010. Several industrial design methods
were applied in the project to support innovation in the design process: namely the Innovation Phase Model, Platform
Driven Product Development, Technology Roadmapping, TRIZ, Lead User Study, Innovative Design and Styling,
Risk Diagnosing Methodology, Innovation Journey¸ Constructive Technology Assessment. In our paper we will
present part of their results illustrated by high-key renderings of the product concepts. It is shown that surprisingly
unpredictable - yet technically feasible – PV powered products can be designed by an open view towards potential
applications.
War Diary of 1st Battalion Canadian Scottish Regiment, Vol. 68 - Appendix 06
Creators: name: Canada. Canadian Army. Canadian Scottish Regiment (Princess Mary's)
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Canada. Canadian Army
valueUri: http://id.worldcat.org/fast/531187
subject: Canada. Canadian Army. Canadian Scottish Regiment (Princess Mary's)
subject: World War (1939-1945)
valueUri: http://id.worldcat.org/fast/1180924
subject: War diaries
valueUri: http://id.worldcat.org/fast/1745536

description: This appendix consists of a report on Exercise "Plunder" dated April 27, and "R.A.P. Notes, Apri l 1945" by Sgt. R.J. Duncan.
Bounding errors of Expectation-Propagation
Creators: name: Dehaene, Guillaume P
name: Barthelmé, Simon
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computation (stat.CO)
subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Expectation Propagation is a very popular algorithm for variational inference, but comes with few theoretical guarantees. In this article, we prove that the approximation errors made by EP can be bounded. Our bounds have an asymptotic interpretation in the number $n$ of datapoints, which allows us to study EP's convergence with respect to the true posterior. In particular, we show that EP converges at a rate of $\mathcal{0}(n^{-2})$ for the mean, up to an order of magnitude faster than the traditional Gaussian approximation at the mode. We also give similar asymptotic expansions for moments of order 2 to 4, as well as excess Kullback-Leibler cost (defined as the additional KL cost incurred by using EP rather than the ideal Gaussian approximation). All these expansions highlight the superior convergence properties of EP. Our approach for deriving those results is likely applicable to many similar approximate inference methods. In addition, we introduce bounds on the moments of log-concave distributions that may be of independent interest.
description: Accepted and published at NIPS 2015
The Invisible Hidden PV
Creators: name: Pellegrino, M.
name: Adinolfi, G.
name: Flaminio, G.
name: Tricoli, C.
name: Quagliato, G.
Publisher: name: WIP
Year: 2011
Subjects: PV Systems
PV and Architecture

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4167-4170
description: The integration of PV modules in buildings maybe represents the most acceptable application of PV.
The only drawback is the aesthetical impact due to the installation and the look of the building and of the nearby is
considered somehow compromised and get worse for the presence of the PV components. Especially for historical
towns the strong modification of the traditional outlook could result a very serious obstacle for the general acceptance
of the PV technology and very often authorities deny the permission for its installation.
Menu of Empress Hotel from the day Peggy and Nicolas were married in 1946.
Creators: name: Empress Hotel (Victoria, B.C.)
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Abkhazi, Peggy, 1902-
valueUri: http://id.worldcat.org/fast/163887
subject: Weddings
valueUri: http://id.worldcat.org/fast/1173328
subject: Empress Hotel (Victoria, B.C.)
valueUri: http://id.worldcat.org/fast/736615
subject: Abkhazi, Nicolas, 1899-1987

description: A menu from the Empress Hotel in Victoria, B.C. on November 23, 1946. It was signed by wedding guests.
Detailed Analysis of a-Si:H/μc-Si:H Tandem Solar Cell Characterization Data Using Numerical Simulation
Creators: name: Ding, K.
name: Kirchartz, T.
name: Pieters, B.E.
name: Ulbrich, C.
name: Schicho, S.
name: Lambertz, A.
name: Carius, R.
name: Rau, U.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Thin Film Solar Cells
Amorphous and Microcrystalline Silicon Solar Cells

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 2908-2914
description: We investigated the complex optoelelectronic processes taking place within silicon thin-film solar cell
devices by comparing experimental and simulated characteristics (external quantum efficiency, current voltage
characteristic, overall reflection). To this end we measured, calibrated and optimized electrical and optical input
parameters for the numerical device simulator ASA with experimental data, with which different silicon thin film
solar cell types are reproduced consistently. We obtained a good correspondence between the experimental and
simulated characteristics of a-Si:H/μc-Si:H tandem solar cells of various absorber thicknesses and on both Asahi Utype
and Jülich ZnO substrates. Further we show that insight into not directly measurable properties like the spaceresolved
absorptance, collection and losses is provided. Optical simulations show that the difference between tandem
solar cells grown on Asahi U-type and Jülich ZnO substrate originates primarily from their optics. Using bias
dependent EQE measurements combined with simulations we find that doped layers, except for the front p-layer, do
not contribute to the photocurrent density. Simulated efficiency mapping for different combinations of a-Si:H and
μc-Si:H absorber layer thicknesses predicts the highest efficiencies of 10.60% at 260 nm/1500 nm for Asahi U-type
and 10.62% at 360 nm/850 nm for Jülich ZnO.
Modeling and Simulation of Light Absorption by Free Charge Carriers
Creators: name: Vardanyan, R.
name: Dallakyan, V.
name: Kerst, U.
name: Boit, C.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Characterisation and Modelling

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1434-1436
description: The light absorption by free charge carriers does not generate electron-hole pairs, but it can be
significant for characteristics of solar cells. Free-carrier absorption can reduce efficiency by more than 0.5% for
practical photovoltaic devices Free-carrier absorption is a consideration in tandem solar cell systems also. In this
paper different empirical models for free-carrier absorption coefficient determination in IR and near IR regions are
analyzed. A new empirical model with 3th degree polynomials is developed and assessed by R2 parameter. For
practical use and absorption coefficient determination in doped silicon the software program (calculator) is
developed. It allows calculating the absorption coefficient by free charge carriers in infrared range of wavelengths
from 1.15 μm to 6 μm for n type silicon and from 1.15 μm to 8 μm for p type silicon with different doping
concentrations. Besides this to enlarge the range of calculations the phonon assisted absorption, which generates
electron-hole pairs, is considered as well. As a result of it the developed simulator allows to determine the absorption
coefficient starting from 0.6 μm. Thus the absorption coefficients in wavelength ranges of 0.6 – 6 μm for n-type
silicon and 0.6 – 8 μm for p-type silicon can be determined by simulator (calculator).
Enhancement of cold stress tolerance using endophytic bacteria from wild Rosaceae plants
Creators: name: Milanese, Irma
name: Marian, Malek
name: Perazzolli, Michele
Publisher: name: Zenodo
Year: 2022
Subjects: Plant Microbiome; Alpine Region; Cold Stress; Rosaceae Plants; Tomato; Psychrotolerant Bacteria; Plant Growth Promotion

description: .
Plasma Single-Sided Etching for Rear Emitter Etch-Back and Flattening of Industrial Crystalline Silicon Solar Cells
Creators: name: Khandelwal, R.
name: Hofmann, M.
name: Trogus, D.
name: Gautero, L.
name: Seiffe, J.
name: Rentsch, J.
name: Preu, R.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 2667-2671
description: In this paper, we present investigations on single-sided plasma etching for silicon wafers with work
aimed for the development, characterization and application of single-sided plasma etching processes for industrial
silicon solar cells. Tests were conducted using a popular industrial inline plasma system from Roth&Rau
(modified SiNA). For high-efficiency cell structures with passivated and locally contacted rear side; it is beneficial to
prepare a polished/flat rear surface to achieve a very good quality of passivation. During this work different dry
etching approaches (using SF6- and O2-based plasma chemistry) for the solar cells rear, have been investigated in
terms of resulting surface topography and optical performance. Solar cells processed with the developed plasma
etching steps (for front and rear surface) exceeding 17% efficiency are reported in this study. The investigated
process can be adapted to fit in the workflow for PERC-type (passivated emitter and rear cell) high-efficiency solar
cell structures.
Efficient distribution and improved security for reliable cloud storage system
Creators: name: Marina, Ninoslav
name: Velkoska, Aneta
name: Paunkoska, Natasa
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The distributed data storage systems are constructed by large number of nodes which are interconnected over a network. Each node in such peer-to-peer network is vulnerable and at a potential risk for attack. The attackers can eavesdrop the nodes and possibly modify their data. Hence distributed storage systems should be secure apart from satisfying the reconstruction and repair requirements. We constructed a distributed storage system, Twin MDS code framework which is more efficient than the regenerating codes based storage systems. We prove that this Twin MDS code framework gives better performance than MBR codes and equal with MSR codes in the distribution process and investigate its security performance comparing with the security of the MBR and MSR codes. Such Twin MDS code framework is examined in an eavesdropper model where passive attackers can access to the stored data or/and downloaded data during the repair process. We demonstrate that the Twin MDS code framework manages better results than MBR and MSR codes regarding the security in the system.
description: 22 pages, 9 figures
Increasing Workers’ Health and Safety Engagement: A Ford Bridgend Engine Plant Case Study
Creators: name: Homann, Franziska
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Occupational and workplace health and safety
Applied and developmental psychology not elsewhere classified

description: From 2019 to 2020, 11,245 UK-manufacturing workers were injured at work. It has been reported that health and safety (H&S) behaviour and compliance are positive outcomes of increased work engagement (WE), suggesting that research on WE and H&S engagement is warranted in relation to production-line workers. WE, which is often defined as a worker’s psychological state of vigour, dedication and absorption, is beneficial for workers and employers as it motivates them to ‘go the extra mile’ to ensure H&S for all. This is recognised within the concept of Safety-II which views humans as clever, proactive, flexible resources in safety management, showing resilience and, through their performance variability, pre- vent adverse events. The research presented in this thesis integrates the concepts of WE and Safety-II and generates a novel intervention framework that aims to increase both, WE and Safety-II principles.
 Based in a Welsh production plant, this research was designed to: 1) explore the crucial factors that promote ‘engagement with H&S’, and 2) develop a practical intervention to be applied within production environments to enhance WE towards H&S. After critically evaluating the literature on WE and Safety-II, the workers’ drivers of H&S engagement were analysed. Then, critical literature reviews identified best practice in engagement interventions for production environments. An intervention framework was then designed utilising a structural change in the organisation by implementing co-design structures, that were qualitatively evaluated with regard to feasibility and transferability on hypothetical grounds. This is the first study that integrates the concepts of WE and Safety-II in production-line workers. Additionally, it offers a practical intervention framework for companies to incorporate Safety-II principles and increase WE to improve H&S climate and behaviour. Furthermore, the research adds to the limited body of qualitative insights into production-line workers’ perceptions of WE in the context of H&S practice, and engagement intervention research, developing assessable guidelines for practitioners.
Operation Regime Optimization of Lead-Acid Battery for Electric Energy Accumulation in Raps System
Creators: name: Abraham, P.
name: Baca, P.
name: Vanek, J.
Publisher: name: WIP
Year: 2011
Subjects: PV Systems
Off-grid Applications

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4155-4156
description: Primary aim of this paper is to find out how operation regime of lead-acid battery used in remote area
power supply (RAPS) systems affects important qualities of whole system especially total accumulated charge and
lifetime of lead-acid batteries.
Anomalous dynamics of intruders in a crowded environment of mobile obstacles
Creators: name: Sentjabrskaja, Tatjana
name: Zaccarelli, Emanuela
name: De Michele, Cristiano
name: Sciortino, Francesco
name: Tartaglia, Piero
name: Voigtmann, Thomas
name: Egelhaaf, Stefan U.
name: Laurati, Marco
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Many natural and industrial processes rely on constrained transport, such as proteins moving through cells, particles confined in nanocomposite materials or gels, individuals in highly dense collec- tives and vehicular traffic conditions. These are examples of motion through crowded environments, in which the host matrix may retain some glass-like dynamics. Here we investigate constrained transport in a colloidal model system, in which dilute small spheres move in a slowly rearranging, glassy matrix of large spheres. Using confocal differential dynamic microscopy and simulations, we discover a critical size asymmetry at which anomalous collective transport of the small particles appears, manifested as a logarithmic decay of the density autocorrelation functions. We demonstrate that the matrix mobility is central for the observed anomalous behaviour. These results, crucially depending on size-induced dynamic asymmetry, are of relevance for a wide range of phenomena ranging from glassy systems to cell biology.
description: 13 pages, 7 figures
Progress in the Fabrication of Amorphous Silicon Photovoltaic Modules on Very Large 2,60m x 2,20m Glass Substrates
Creators: name: Vetter, M.
name: Borrajo, J.P.
name: Mata, C.
name: Andreu, J.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Thin Films Solar Cells
Amorphous and Microcrystalline Silicon Solar Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2408-2411
description: Improvements in the fabrication of photovoltaic thin film modules based on hydrogenated amorphous
silicon (a-Si:H) technology on float glass are presented after the first year of production in Europe’s first 40MW
SUNFAB production plant. In the last 6 months the productivity of the production plant was further increased by
about 30% reaching now about 95% of the nominal capacity of the factory. Light-induced degradation of T-Solar’s
second generation modules is studied in more detail by analysis of the spectral response of small solar cells produced
in the production line. Spectral response measurements show that degradation mainly takes place in the blue
wavelength range. With the objective to improve the output power of the modules in the de-gradated state, several
process changes were introduced to shift the spectral response to the red wavelength range, resulting additionally in
about 2 W higher average power of the modules in the initial state. Under these process conditions T-Solar’s best
module with a power of 112.2 W, corresponding to an efficiency of 7.84% in the initial state was fabricated.
Getting excited: Challenges in quantum-classical studies of excitons in polymeric systems
Creators: name: Bagheri, Behnaz
name: Baumeier, Björn
name: Karttunen, Mikko
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A combination of classical molecular dynamics (MM/MD) and quantum chemical calculations based on the density functional theory (DFT) was performed to describe conformational properties of diphenylethyne (DPE), methylated-DPE and poly para phenylene ethynylene (PPE). DFT calculations were employed to improve and develop force field parameters for MM/MD simulations. Many-body Green's functions theory within the GW approximation and the Bethe-Salpeter equation were utilized to describe excited states of the systems. Reliability of the excitation energies based on the MM/MD conformations was examined and compared to the excitation energies from DFT conformations. The results show an overall agreement between the optical excitations based on MM/MD conformations and DFT conformations. This allows for calculation of excitation energies based on MM/MD conformations.
Resonant enhancement of Raman scattering in metamaterials with hybrid electromagnetic and plasmonic resonances
Creators: name: Guddala, Sriram
name: Desai, Narayanarao
name: Ramakrishna, S. Anantha
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A tri-layer metamaterial perfect absorber of light, consisting of (Al/ZnS/Al) films with the top aluminium layer patterned as an array of circular disk nanoantennas, is investigated for resonantly enhancing Raman scattering from C-60 fullerene molecules deposited on the metamaterial. The metamaterial is designed to have resonant bands due to plasmonic and electromagnetic resonances at the Raman pump frequency (725 nm) as well as Stokes emission bands. The Raman scattering from C60 on the metamaterial with resonantly matched bands is measured to be enhanced by an order of magnitude more than from C60 on metamaterials with off-resonant absorption bands peaked at 1090 nm. The Raman pump is significantly enhanced due to the resonance with a propagating surface plasmon band, while the highly impedance matched electromagnetic resonance is expected to couple out the Raman emission efficiently. The nature and hybridization of the plasmonic and electromagnetic resonances to form compound resonances are investigated by numerical simulations.
description: 9 pages, 4 figures
Asymmetric Intermediate Reflector for N-I-P Multi-Junction Thin Film Silicon Solar Cells
Creators: name: Söderström, T.
name: Haug, F.-J.
name: Terrazzoni, V.
name: Python, M.
name: Ballif, C.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Thin Films Solar Cells
Amorphous and Microcrystalline Silicon Solar Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2412-2415
description: We investigate n-i-p/n-i-p micromorph tandem cells deposited at process temperature below 200°C in order to
be compatible with low Tg (<180°C) plastic substrates. In this configuration, the thick microcrystalline cell is grown first and
tends to smoothen the initial substrate texture. Hence, the amorphous cell is grown on an almost flat surface that yields low
current density. To prevent this effect and to obtain a proper current matching, an asymmetric intermediate reflector, creating
a structure favourable for a-Si:H cell, is developed and incorporated into the cells. The effective optical thickness of the
amorphous intrinsic layer can be increased by a factor of more than three. Hence, the light induced degradation is reduced
below 10% for 180 nm amorphous layer whereas the degradation for cells without intermediate reflector is between 15-20%,
because 300 nm amorphous top cell is required for matching. We present a-Si:H/a-Si:H micromorph tandem cells with 10.1
% stable efficiency after 1000h light soaking and triple junction a-Si:H/a-Si:H/μc-Si:H solar cell with initial efficiency of
10.4%.
Line shifts in accretion disks - the case of Fe K$α$
Creators: name: Jovanović, P.
name: Jovanović, V. Borka
name: Borka, D.
name: Popović, L. Č.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Here we present a short overview and main results of our investigations of several effects which can induce shifts in the broad Fe K$α$ line emitted from relativistic accretion disks around single and binary supermassive black holes. We used numerical simulations based on ray-tracing method in the Kerr metric to study the role of classical Doppler shift, special relativistic transverse Doppler shift and Doppler beaming, general relativistic gravitational redshift, and perturbations of the disk emissivity in the formation of the observed Fe K$α$ line profiles. Besides, we also investigated whether the observed line profiles from the binary systems of supermassive black holes could be affected by the Doppler shifts due to dynamics of such systems. The presented results demonstrate that all these effects could have a significant influence on the observed profiles of the broad Fe K$α$ line emitted from relativistic accretion disks around single and binary supermassive black holes.
description: 9 pages, 5 figures, 1 table. Accepted for publication in Astrophysics and Space Science
The European Project HIGH-EF: Multicrystalline Silicon Thin Film Solar Cells on Glass
Creators: name: Falk, F.
name: Ose, E.
name: Sarau, G.
name: Christiansen, S.H.
name: Schneider, J.
name: Lichtenstein, N.
name: Valk, B.
name: Lewandowska, R.
name: Antoni, F.
name: Slaoui, A.
name: Fogarassy, E.
name: Michler, J.
name: Maeder, X.
name: Dehlinger, A.-S.
name: Lábár, J.L.
name: Sáfrán, G.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Thin Films Solar Cells
Thin Film Crystalline Silicon Solar Cells and Wafer Equivalents

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2341-2343
description: In the European project HIGH-EF a technology for multicrystalline silicon thin film solar cells on
glass is developed which have the potential for an efficiency exceeding 12%. The preparation rests on high rate cost
effective electron beam evaporation, diode laser crystallization of a seed layer, and solid phase epitaxial growth of
the solar cell layer system. Up to now 1.5 μm thick epitaxial layers with grain sizes in the 100 μm range were
successfully prepared on glass substrates. The films were characterized by EBSD, TEM, and micro-Raman
spectroscopy.
Fixing the shadows while moving the gnomon
Creators: name: Gangui, Alejandro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Popular Physics (physics.pop-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: It is a common practice to fix a vertical gnomon and study the moving shadow cast by it. This shows our local solar time and gives us a hint regarding the season in which we perform the observation. The moving shadow can also tell us our latitude with high precision. In this paper we propose to exchange the roles and while keeping the shadows fixed on the ground we will move the gnomon. This lets us understand in a simple way the relevance of the tropical lines of latitude and the behavior of shadows in different locations. We then put these ideas into practice using sticks and threads during a solstice on two sites located on opposite sides of the Tropic of Capricorn.
description: Published version available at http://cms.iafe.uba.ar/gangui/didaastro/#Publications
Je suis arrive ... [Letter to Peggy from Nicolas]
Creators: name: Abkhazi, Nicolas, 1899-1987
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Personal correspondence
valueUri: http://id.worldcat.org/fast/1919948
subject: Abkhazi, Nicolas, 1899-1987
subject: Abkhazi, Peggy, 1902-
valueUri: http://id.worldcat.org/fast/163887

description: A letter to Peggy from Nicolas in French "c/o Lochwood Studio 40 East 58th Street Ν. Υork USA". The letter begins "Chere Peggy, Je suis arrive ..."
Interparticle attraction in 2D complex plasmas
Creators: name: Kompaneets, Roman
name: Morfill, Gregor E.
name: Ivlev, Alexei V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Complex (dusty) plasmas allow experimental studies of various physical processes occurring in classical liquids and solids by directly observing individual microparticles. A major problem is that the interaction between microparticles is generally not molecular-like. In this Letter, we propose how to achieve a molecular-like interaction potential in laboratory 2D complex plasmas. We argue that this principal aim can be achieved by using relatively small microparticles and properly adjusting discharge parameters. If experimentally confirmed, this will make it possible to employ complex plasmas as a model system with an interaction potential resembling that of conventional liquids.
title: M&A since Y2K - an overview of chemicals deals invilving BRIC countries in the new millennium
Creators: name: Schneider, Bernd W.
name: Plakun, Stanislav
name: Slooth, Tim-Frederic
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 330 Economics

description: Brazil, Russia, India and China, also known as BRIC countries or the BRICs, are among the fastest growing economies in the world and have excellent raw material deposits for the chemicals and related industries. By 2007 the BRICs' combined weight in the global economy exceeded 15 % of GDP (O´Neill, 2007). Along with their fast integration into the international trading scheme, many companies within the BRICs emerged as global players, thereby becoming competitive on a global scale. International investors have thus been attracted and driven up the number of takeovers of BRIC-enterprises. More recently, BRIC companies are themselves started acquiring enterprises abroad, e.g. in order to gain access to new markets, know-how, feedstock and/or to increase the economies of scale (Schmiele/Sofka, 2008). Chemicals are among the key industries within the BRIC economies and have been impacted both by the generally observable M&A momentum and by the chemicals specific global reorganization process. The aim of this paper is to provide an overview of M&A deals and trends in the chemicals subsectors involving BRIC countries since the year 2000 ("Y2K").
Performance of aSi and cSi PV Systems with Different Layouts Suitable for BAPV and BIPV
Creators: name: González, T.
name: Alberte, C.
name: Rodríguez, J.A.
name: Ventura, P.J.
name: Roldán, R.
name: Asensi, J.M.
name: Fonrodona, M.
name: Andreu, J.
Publisher: name: WIP
Year: 2011
Subjects: PV Systems
PV and Architecture

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4099-4102
description: Large commercial and industrial buildings tend to have large horizontal roofs. The most usual PV
system layout in this case is BAPV with the modules having an inclination between 10 and 40o. In the BIPV
approach, the PV modules are installed in the architectural surface of the building with an inclination close to 0o. In
this paper different aspects influencing the energy output in both approaches have been analyzed considering two
technologies: standard cSi and aSi. For horizontally integrated systems (BIPV), the energy in the array plane is about
13% lower than for systems with optimal inclination, but due to a much higher surface utilization (higher power
installed in the building) the energy production is much higher. The performance of the system converting this energy
into electricity is also affected by the type of mounting, as horizontal mounted modules have slightly higher losses
(~1%) due to poorer self-cleaning capabilities. Finally, the higher operation temperature of BIPV systems causes a
decrease in the PR in the range of 4-5% in cSi technology, whereas it causes an increase of ~2% for aSi.
Counting spanning trees on fractal graphs and their asymptotic complexity
Creators: name: Anema, Jason A.
name: Tsougkas, Konstantinos
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: Using the method of spectral decimation and a modified version of Kirchhoff's Matrix-Tree Theorem, a closed form solution to the number of spanning trees on approximating graphs to a fully symmetric self-similar structure on a finitely ramified fractal is given in Theorem \ref{thm:maintheoremfull}. We show how spectral decimation implies the existence of the asymptotic complexity constant and obtain some bounds for it. Examples calculated include the Sierpinski Gasket, a non post critically finite analog of the Sierpinski Gasket, the Diamond fractal, and the Hexagasket. For each example, the asymptotic complexity constant is found.
description: 26 pages. arXiv admin note: substantial text overlap with arXiv:1211.7341
Selective Emitter Silicon Solar Cells Without POCl3 Furnace Diffusion
Creators: name: Paviet-Salomon, B.
name: Manuel, S.
name: Gall, S.
name: Monna, R.
name: Slaoui, A.
name: Vandroux, L.
name: Hida, R.
name: Dechenaux, S.
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; 1369-1371
description: This work aims at investigating phosphorus-doped silicon nitrides layers (SiN:P) as efficient dopant
sources to replace the phosphorus silicate glass (PSG) as a subproduct of conventional POCl3 diffusion. 75 nm thick
SiN:P layers using 50 sccm phosphine flow were deposited by plasma-enhanced chemical vapour deposition on ptype
silicon substrates. Two doping techniques were then investigated: laser doping and thermal annealing. Wide
doping ranges were obtained with both methods. Selective emitter solar cells were then processed using SiN:P layers
as dopant source and laser doping to pattern the heavily-doped areas, while the lightly doped emitter was formed
using thermal annealing. Cells efficiency is currently limited by an increased series resistance, but this selective
emitter processing scheme appears to be very promising in realizing solar cells without POCl3 furnace diffusion step.
Almost universal codes for fading wiretap channels
Creators: name: Luzzi, Laura
name: Ling, Cong
name: Vehkalahti, Roope
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: Number Theory (math.NT)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We consider a fading wiretap channel model where the transmitter has only statistical channel state information, and the legitimate receiver and eavesdropper have perfect channel state information. We propose a sequence of non-random lattice codes which achieve strong secrecy and semantic security over ergodic fading channels. The construction is almost universal in the sense that it achieves the same constant gap to secrecy capacity over Gaussian and ergodic fading models.
description: 5 pages, to be submitted to IEEE International Symposium on Information Theory (ISIT) 2016
War Diary of 1st Battalion Canadian Scottish Regiment, Vol. 69 - Appendix 03
Creators: name: Canada. Canadian Army. Canadian Scottish Regiment (Princess Mary's)
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Canada. Canadian Army
valueUri: http://id.worldcat.org/fast/531187
subject: Canada. Canadian Army. Canadian Scottish Regiment (Princess Mary's)
subject: World War (1939-1945)
valueUri: http://id.worldcat.org/fast/1180924
subject: War diaries
valueUri: http://id.worldcat.org/fast/1745536

description: This appendix consists of a telegraph giving a list of information that must be sent to HQ daily, reports in German of numbers of captured Germans, statistics regarding the number of captured Germans.
SANYO’s R&D on Thin-Film Si Photovoltaic Technologies
Creators: name: Aya, Y.
name: Katayama, H.
name: Murata, K.
name: Shinohara, W.
name: Nakagawa, M.
name: Terakawa, A.
name: Tanaka, M.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Thin Films Solar Cells
Amorphous and Microcrystalline Silicon Solar Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2394-2397
description: In 2008, SANYO established “Advanced Photovoltaics Development Center” in its Gifu Plant, which houses the
“Solar Ark,” a monumental solar power generation facility, to accelerate R&D on advanced thin film Si photovoltaic
technologies. Research progress in SANYO has included the achievement of a solar cell module with initial efficiency of 10.9%
(maximum power: 168 W) on a full-size G5.5 glass substrates (1,100 × 1,400 mm2) using an a-Si/?c-Si tandem structure. To
promote high-rate deposition of ?c-Si films, Localized Plasma Confinement CVD (LPC-CVD) method has been developed.
Using this original method, the initial conversion efficiency of 10.4% (Voc: 1.29 V, Jsc: 10.76 mA/cm2, F.F.: 0.746) has been
achieved with an a-Si/?c-Si tandem structure scribed from a 550 × 650 mm2 glass substrate using a film deposition rate of 2.2
nm/s. LPC-CVD technology is being transferred to G5.5 glass substrates.
Diffusion and Characterization of Doped Patterns in Silicon from Prepatterned Boron- and Phosphorus-Doped Silicate Glasses
Creators: name: Keding, R.
name: Woehl, R.
name: Stüwe, D.
name: Fallisch, A.
name: Hofmann, M.
name: Rentsch, J.
name: Biro, D.
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; 1385-1389
description: In this work plasma-enhanced chemical-vapor deposition (PECVD) technology was used to deposit
boron-doped silicate glasses (BSG) and phosphorus-doped silicate glasses (PSG) as solid diffusion sources with the
goal of implementing locally doped p+- and n+-areas into monocrystalline silicon. For this purpose, several process
sequences were carried out to pattern these layers before the diffusion step in a tube furnace using a wet chemical
etch process in combination with an inkjet printed etch resist. The evaluated technology leads to a locally doped area
on the wafer surface with a minimum feature size of approximately 100 μm. Boron-doped p+-areas in silicon with a
sheet resistance of less than 25 Ω/sq (boron surface concentration NA>1019 cm-3) were achieved from BSG and
phosphorus-doped n+-areas with a sheet resistance of less than 10 Ω/sq (phosphorus surface concentration
ND>1020 cm-3) from PSG. An excellent electrical contacting behavior of physical vapor deposited aluminum to both
doping types could be reached. Specific contact resistivities were measured to be below 5 mΩcm2. This work
establishes a highly flexible set of solid diffusion sources together with a high precision structuring method, allowing
for well controlled local doping of silicon.
The influence of demographic variables on job satisfaction and organizational commitment in Nigerian public universities
Creators: name: Odoh, Maria Ekemma
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Organisation and management theory

description: The Nigerian workforce is becoming more diverse with respect to tribal origin, gender, age, marital status among others following the implementation of the Federal Character Act. The Act ensures recruitments into public institutions fairly reflect the tribal, religion among other diversity in the country. Thus, as public institutions become more diverse, it is important to empirically investigate how the different groups interact and how this interaction affects their work attitude. It is on this basis that this study investigated the link between diversity in terms of demographic variables and job satisfaction/organizational commitment in Nigerian public universities.
The study reviewed a number of theories a number of theoretical perspectives namely,similarity-attraction and adaptive self-regulation theories. Both qualitative and quantitative data generated through field survey with a structured questionnaire and Key Informant Survey (KIS) as the main instruments of data collection. The qualitative data were analysed thematically while the quantitative data were analysed with descriptive statistics (frequency tables, percentages, charts, and ratios), Factor analysis, Spearman's rho correlation test, Mann-Whitney's U rank test, Kendall's Tau-b test and the Kruskall-Wallis H rank test.
The study found that male and female respondents were not differentiated in terms of university commitment, work compulsion, general satisfaction, and career satisfaction. Other findings of the study include:
(i) age is a significant determinant of employee general satisfaction and commitment, and that older employees are more likely to committed to their jobs than their younger counterpart
(ii)the level of job satisfaction and organizational commitment among married employees does not differ significantly from their unmarried counterpart in Nigerian public universities
(iii) job satisfaction and organizational commitment are differentiated on the basis of culture as staff
(iv) job satisfaction/organizational commitment among administrative staff do not differ from those of academic staff
(v) educational background is also a significant determinant of employee job satisfaction and commitment
(vi) tenure (number of years in service) does not have any significant effect on the level of job satisfaction and organizational commitment in Nigerian public universities.
The study recommends a more diverse workplace since it reduces domineering effect of one group on the others. This, in turn, increases job satisfaction and commitment.