cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Turbulent Thermal Diffusion: A Way to Concentrate Dust in Protoplanetary Discs
Creators: name: Hubbard, Alexander
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Turbulence acting on mixes of gas and particles generally evenly diffuses the latter through the former. However, in the presence of background gas temperature gradients a phenomenon known as turbulent thermal diffusion appears as a particle drift velocity (rather than a diffusive term). This process moves particles from hot regions to cold ones. We rederive turbulent thermal diffusion using astrophysical language and demonstrate that it could play a major role in protoplanetary discs by concentrating particles by factors of tens. Such a concentration would set the stage for collective behavior such as the streaming instability and hence planetesimal formation.
description: 11 pages, 1 figure, accepted for publication, MNRAS
The Effect of Ammonia Ambient On PV Module Performance and Longevity
Creators: name: Cunningham, D.W.
Publisher: name: WIP
Year: 2011
Subjects: Components for PV Systems
PV Modules

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 3088-3092
description: There has recently been a significant amount of literature on the effect of high pH ammonia environments
(Schott Solar, TUV Rhineland, and German DLG organization) on the longevity of PV modules. This was particularly of
interest in agricultural locations especially in Germany where there are many installations funded by farmers
cooperatives. The scope of this study was to determine the affect of these types of environments on the core module
materials such as back sheet, frames, encapsulants, cells, interconnects, etc. In this paper, we describe a novel way to
expose module materials to this corrosive ambient and how elevated pressures can be used to accelerate degradation rates.
Time, temperature, and pressure was used to accelerate corrosion mechanisms and allowed the test to be performed over a
much shorter period than had been presented in literature so far. A high degree of experimental rigor was used not only
on the design of experiment but on the measurement techniques to characterize the material property changes. In our
study, differential scanning calorimetry, colormeter for L* and b* colour component changes, as well as standard solar
simulator and light transmission measurements were used to characterize changes in the module. In conclusion, we show
that, while ammonia ambient can be aggressive, the materials used in PV modules perform well even at extreme test
conditions which include high pressures. No new ammonia specific degradation mechanisms were identified as a result of
this study.
Is the Future of Information Literacy Instruction Blended? Re-Imagining Information Literacy Instruction Post-Pandemic
Creators: name: Siu Chen Lim,
name: Tao Tao Magdeline Ng,
Publisher: name: National University of Singapore
Year: 2022
Subjects: Blended Learning
Information Literacy
Pedagogy
Library
Singapore
Pandemic
Post-Pandemic

description: Post-pandemic, blended learning is on the rise and librarians should keep pace with this new modality of teaching in their information literacy pr­­­­ogrammes. Following an introduction to the drivers of blended learning in higher education, the implementation of blended learning in information literacy programmes is discussed, including some examples from literature. Research-backed benefits of blended learning are then covered, together with some recommendations on factors that facilitate the adoption of blended learning in libraries.
Weighting of Climatic Impacts on PV-Module Degradation – Comparison of Outdoor Weathering Data and Indoor Weathering Data
Creators: name: Bogdanski, N.
name: Herrmann, W.
Publisher: name: WIP
Year: 2011
Subjects: Components for PV Systems
PV Modules

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 3093-3096
description: A long-term joint project conducted by TÜV Rheinland Group, Fraunhofer ISE and six German
module manufacturers investigated the reliability of crystalline PV modules. Laboratory testing as proposed by IEC
61215 and IEC 61730 is a good way to uncover problems related to infant mortality. Studying the long-term
behaviour of crystalline PV modules requires the adaptation of commonly employed tests in order to verify the stated
service life. In order not to overstress the modules, additional outdoor tests should be conducted as a measure for
evaluating the indoor tests. A comprehensive correlation between indoor and outdoor testing has not yet been
established. The following compares the results obtained from indoor and outdoor weathering with respect to severity
and differences in the degradation behaviour.
Non-Native Species and Urbanization in the Context of Butterfly Communities
Creators: name: Rivest, Stephanie
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2023
Subjects: butterfly
non-native species
urbanization
biotic homogenization
habitat suitability
phenology
species interactions
nectar
range expansion
land cover
anthropogenic disturbance
flower availability
community ecology
invasion ecology
resource selection
temporal ecology

description: Biodiversity is being lost around the world and anthropogenic activities, like non-native species introductions and urbanization, are among the leading causes of decline. Broadening our understanding of human-driven impacts on biodiversity can lead to more effective solutions and contribute towards stemming biodiversity losses. In this thesis, I explored the impacts of non-native species introductions and urbanization on butterfly-plant communities. I evaluated potential factors influencing the range expansion of a newly introduced species (Chapter 1), examined the role of urbanization in structuring biological communities (Chapter 2), and identified important ecological interactions between native and non-native species (Chapter 3). In my first chapter, I found that the newly introduced European Common Blue butterfly (Polyommatus icarus) was more abundant in urban and disturbed habitat that was unmown and where their preferred larval host plant (Lotus corniculatus), a non-native species, was present. I also found that P. icarus was not a strong flier relative to other butterfly species, suggesting that adult dispersal may not be a driving factor in range expansion. Instead, this species could expand its range in the future by colonizing habitats in developed regions across Canada given the association I found between P. icarus and disturbed habitat. In my second chapter, I found that urbanization led to the biotic homogenization of butterfly communities around Montréal, QC, favouring a few, highly abundant, non-native species. Homogenization was detected at both the taxonomic and functional levels and was driven by increases in P. icarus abundance in the more urban sites. In my third chapter, I found that non-native plants were well integrated into native butterfly nectar diets in an at-risk oak savanna ecosystem on Vancouver Island, BC and that usage of non-native plants increased when they were more available during the season. I also found that native butterflies visited non-native plants more often than flower availability predicted on its own, suggesting that butterflies may even prefer non-native nectar. Findings from my thesis research broaden our understanding of the ways in which butterfly communities can be influenced by human activities like urbanization and the introduction of non-native species, informing conservation efforts and directing future research needs.
Health technology as commons: trustable, affordable, adaptable
Creators: name: Balli, Fabio
name: Matringe, Mathilde
name: le Couedic, Clement
name: Schull, Jon
name: Gautam, Shikshya
name: Jandard, Patrick
name: Kellner, Emmanuel
name: Anastasaki, Afroditi
name: Serada, Katerina
name: Brahmachari, Samir K
name: Winter, Lukas
name: Lonchampt, Pierre
name: Schoeller, Felix
name: Krishnakumar, Anirudh
name: Greshake, Bastian
name: Lhoste, Kevin
name: Parot, Christophe
name: Jeanmaire, Guillaume
Publisher: name: Zenodo
Year: 2021
Subjects: health for all
open hardware for health
open-source medical supply
community-based healthcare
free/libre software for health
adhesion to treatment
scientific integrity
medical expenditure
open science
open access commons
co-creation
mutual care
3d-printing
wearables
health data collection

description: 6 in 10 humans still have no access to care, or do not adhere to it, despite rising investments. Alcohol-based hand rub and WikiMed illustrate how creating freely reproducible equipment and software with communities can: save millions of lives, increase integrity, cut costs by 90%. Cooperation-driven care is the only way to realize the 2030 agenda in time: health for everyone. We present nine alternatives to the dominant proprietary excluding innovation model, to drive development towards a responsible, solidar society. We also discuss ageing, public policies, quality systems, and cryptocurrencies. Français — Español — Português — русский — 中文 — हिंदी — বাংলা — العربية Editable file .odp included.
description: New version: https://doi.org/10.5281/zenodo.7833388
N-Type Cz-Silicon Solar Cells with Screen-Printed Alluminum-Alloyed Rear Emitter
Creators: name: Bock, R.
name: Hesse, R.
name: Schmidt, J.
name: Brendel, R.
name: Maier, J.
name: Geyer, B.
name: Koopmann, J.
name: Kerp, H.
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; 1449-1452
description: Applying an a-Si passivation layer to the rear-side of a screen-printed Al-p+ emitter on an n+np+ solar cell structure fabricated
on 3 Ωcm n-type phosphorus-doped Cz-Si, we achieve an independently confirmed conversion efficiency of 20%. In a
second approach, we apply an Al2O3/SiNx passivation stack to the screen-printed Al-p+ emitter surface of our solar cells,
where we demonstrate a conversion efficiency of 19.8% and a record-high open-circuit voltage of 649 mV. Furthermore, we
introduce an industrial-type n-type Cz-Si solar cell featuring a screen-printed Al-p+ emitter at the rear and a selective front
surface field at the front. This cell has an area of 100 cm2 and shows a stable conversion efficiency of 18.0%. This is the
highest efficiency reported so far for an all-screen-printed n-type solar cell on Cz-Si without any boron diffusion.
Finite Temperature Phase Transitions in the SU$(N)$ Hubbard model
Creators: name: Yanatori, Hiromasa
name: Koga, Akihisa
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the SU($N$) Hubbard model for the multi-component fermionic optical lattice system, combining dynamical mean-field theory with the continuous-time quantum Monte Carlo method. We obtain the finite temperature phase diagrams with $N\le 6$ and find that low temperature properties depends on the parity of the components. The magnetically ordered state competes with the correlated metallic state in the system with the even number of components $(N\ge 4)$, yielding the first-order phase transition. It is also clarified that, in the odd-component system, the ordered state is realized at relatively lower temperatures and the critical temperature is constant in the strong coupling limit.
description: 5pages, 6figures
Simplifying the Manufacturing of N-Type Silicon Solar Cells with Screen-Printed Aluminium-Alloyed Rear Emitter
Creators: name: Rauer, M.
name: Schmiga, C.
name: Meyer, K.
name: Lossen, J.
name: Krokoszinski, H.-J.
name: Hermle, M.
name: Glunz, S.W.
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; 1460-1464
description: This work focuses on simplifying the fabrication process of our near-industrial n-type silicon solar
cells with screen-printed aluminium-alloyed rear emitter. We investigate the structural and electrical properties of Al
emitters alloyed on differently prepared Si surfaces. We demonstrate that the formation of a proper emitter neither
requires a planar nor a non-diffused rear surface, thus allowing both-sided surface texturing and both-sided phosphorous
doping during the n+ front surface field diffusion without the need of an additional protecting rear masking
layer. On textured surfaces a careful choice of the printing and alloying conditions is essential to obtain Al-p+ emitters
without shunts in form of locally non-alloyed regions. By adjusting the alloying conditions or by applying a simple
rear surface conditioning step, shunts can be effectively prevented, thereby simultaneously increasing the internal
reflectance and reducing the Al-p+ emitter saturation current density. Al alloying on P-diffused rear surfaces is shown
to be uncritical. In summary, we demonstrate that Al alloying for p+ emitter formation can be easily realised on textured
and P-diffused surfaces leading to a much more flexible fabrication of our n-type silicon solar cells.
On Vector Linear Solvability of Multicast Networks
Creators: name: Sun, Qifu Tyler
name: Yang, Xiaolong
name: Long, Keping
name: Yin, Xunrui
name: Li, Zongpeng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Vector linear network coding (LNC) is a generalization of the conventional scalar LNC, such that the data unit transmitted on every edge is an $L$-dimensional vector of data symbols over a base field GF($q$). Vector LNC enriches the choices of coding operations at intermediate nodes, and there is a popular conjecture on the benefit of vector LNC over scalar LNC in terms of alphabet size of data units: there exist (single-source) multicast networks that are vector linearly solvable of dimension $L$ over GF($q$) but not scalar linearly solvable over any field of size $q' \leq q^L$. This paper introduces a systematic way to construct such multicast networks, and subsequently establish explicit instances to affirm the positive answer of this conjecture for \emph{infinitely many} alphabet sizes $p^L$ with respect to an \emph{arbitrary} prime $p$. On the other hand, this paper also presents explicit instances with the special property that they do not have a vector linear solution of dimension $L$ over GF(2) but have scalar linear solutions over GF($q'$) for some $q' < 2^L$, where $q'$ can be odd or even. This discovery also unveils that over a given base field, a multicast network that has a vector linear solution of dimension $L$ does not necessarily have a vector linear solution of dimension $L' > L$.
Sol-Gel Based Structuring of the Front-Electrode in Si-Based Thin Film PV Device
Creators: name: Rudigier-Voigt, E.
name: Bockmeyer, M.
name: Hagemann, V.
name: Bauer, S.
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; 2884-2886
description: Light management is a key issue for Si-based thin film solar cells to increase efficiency while keeping film
thicknesses as low as possible. Typically, light scattering schemes are induced by textured TCO. One approach is
the insertion of an additional textured layer located between the substrate and the TCO. Hence, the purpose of this
work is to propose a Sol-Gel based approach for the fabrication of structured inorganic films, which serve as
template structures for the overlying layers. Two routes have been investigated for the realization of structured
films: nano-imprint lithography and self-organization. With these approaches it was possible to fabricate
structures far in the sub-micrometer range, down to around 200 nm. Optical simulations show the potential of such
well-defined structured Sol-Gel based thin films for the use in thin film solar cells. The method of “internal scatter
pattern” has been established for a quick assessment of the scatter properties of those structured films and their
functionality in later solar cells.
Silicon Ink Selective Emitter Solar Cells on Multi-Crystalline Silicon Wafers
Creators: name: Abbott, M.
name: Poplavskyy, D.
name: Scardera, G.
name: Rosenfeld, E.
name: Chen, X.
name: Terry, M.
name: Johnson, S.W.
name: Lemmi, F.
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; 2412-2415
description: The selective emitter cell architecture has been used very effectively on mono-crystalline silicon wafers
to improve the efficiency through reduced front surface recombination. We have previously described a process
developed at Innovalight to implement this cell architecture on CZ wafers using Innovalight Silicon Ink in a cost
effective process known as the Innovalight™ Cougar™ Platform. In this paper we present results on the application
of the Silicon Ink based selective emitter structure on multi-crystalline wafers, the Innovalight Puma™ Platform.
Pattern Alignment for Selective Emitter Solar Cells on Mono- and Multi-Crystalline Wafers
Creators: name: Meisel, A.
name: Burrows, M.
name: Lemmi, F.
name: Antoniadis, H.
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; 2424-2428
description: In this report, we quantify the accuracy and robustness of the front contact pattern alignment process
for typical solar cells manufactured with the Innovalight Cougar™ (mono-crystalline substrates) and Puma™ (multicrystalline
substrates) Platforms. Additionally, we discuss the impact of misalignment for Cougar Cells on cell performance
and confirm the industrial viability of the Innovalight cell Platforms after taking tolerances of an industrialscale
production process into account.
For Cougar Cells produced on the Innovalight pilot production line, the alignment accuracy between the highly doped
regions and front silver features was characterized by an automated measurement system. We report center-to-center
offset values of less than ±10 μm, a value that is equivalent to the accuracy achieved on Puma Cells. The long-term
robustness of the fully automated pattern alignment process was analyzed for Cougar and Puma Cells. In case of both
Platforms, 99.5 % of all cells were successfully recognized by our Baccini screen printer vision system, a value expected
to rise above 99.9% with tighter processing controls in a production environment.
Keywords: Selective Emitter, Screen Printing, Metallization
User Emotional Correlates of Emojis to Derivatives Using Intelligent Analytics
Creators: name: Isiaka, Fatima
Publisher: name: International Journal of Cognitive and User Behaviour Modelling
Year: 2024

description: An emerging paradigm in the age of big data is the development of intelligent analytics, which is a branch of Analytics and Artificial Intelligence (AI). This paper explores the nature of intelligent analytics more specifically by identifying the foundations and applications to areas like Affective computing by integrating emotional emojis to users’ emotional responses to how they can solve and understand the steps to the solution to ordinary differential equations. The method is derived from investigations into state-of-the-art scholars and research into applications of e-learning and marketing analysis of advanced analytics. Some of the work presents a novel approach to extend intelligent data analytics to intelligent analytics that facilitates research and development of intelligent analytics for AI and Data Science, but none has critically investigated on application of intelligent analytics in affective computing and human-computer interaction (HCI). The paper presents a novel method of modeling user emotional response to the complex differential equation bypresenting a synchronous data sequence to the dynamic control model that maps user emotion or affect state to how they solve problems to differential equations. The proposed model is robust and can also present the system performance in predicting the user response that would lead to the decision of how to simplify problem-solving in mathematical calculus.
PV Cycle: the Sustainable Industry Solution for the End-of-Life PV Modules
Creators: name: Gómez, V.
name: Clyncke, J.
Publisher: name: WIP
Year: 2011
Subjects: Components for PV Systems
Environmental Impacts, Recycling and Waste Management

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 3812-3814
description: The main module producers and importers created PV CYCLE in 2007 to take their responsibility for the end-of-life
PV modules. This altruist association has put in place a take back and recycling system of photovoltaic modules in
Europe. The PV CYCLE System, whose members represent today close to 90% of the European PV market, started
operations in 2010. The system counts with over 160 certified collection points in twelve European countries. In
barely one year of operations, more than 650 tonnes have entered this collective system, which ratifies the small
quantities currently available. The goal of the producers is to implement an Environmental Agreement acknowledged
by the Commission. In this text, they commit to achieve 80% recycling quota by 2015 and 85% by the year 2020.
This recycling quota is higher than the one set at the Waste Electric and Electronic Equipment Directive. By setting
this ambitious goal, the PV industry shows its strong commitment towards the environment. In this paper, the PV
CYCLE System will be described as well as the experience acquired during the start up phase. How to participate and
dispose of end-of-life PV modules will be explained.
Two-channel Kondo effect and renormalization flow with macroscopic quantum charge states
Creators: name: Iftikhar, Z.
name: Jezouin, S.
name: Anthore, A.
name: Gennser, U.
name: Parmentier, F. D.
name: Cavanna, A.
name: Pierre, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Many-body correlations and macroscopic quantum behaviors are fascinating condensed matter problems. A powerful test-bed for the many-body concepts and methods is the Kondo model which entails the coupling of a quantum impurity to a continuum of states. It is central in highly correlated systems and can be explored with tunable nanostructures. Although Kondo physics is usually associated with the hybridization of itinerant electrons with microscopic magnetic moments, theory predicts that it can arise whenever degenerate quantum states are coupled to a continuum. Here we demonstrate the previously elusive `charge' Kondo effect in a hybrid metal-semiconductor implementation of a single-electron transistor, with a quantum pseudospin-1/2 constituted by two degenerate macroscopic charge states of a metallic island. In contrast to other Kondo nanostructures, each conduction channel connecting the island to an electrode constitutes a distinct and fully tunable Kondo channel, thereby providing an unprecedented access to the two-channel Kondo effect and a clear path to multi-channel Kondo physics. Using a weakly coupled probe, we reveal the renormalization flow, as temperature is reduced, of two Kondo channels competing to screen the charge pseudospin. This provides a direct view of how the predicted quantum phase transition develops across the symmetric quantum critical point. Detuning the pseudospin away from degeneracy, we demonstrate, on a fully characterized device, quantitative agreement with the predictions for the finite-temperature crossover from quantum criticality.
description: Letter (5 pages, 4 figures) and Methods (10 pages, 6 figures)
Материалы XXIX международной конференции "Проблемы управления безопасностью сложных систем"
Creators: name: Институт проблем управления им. В. А. Трапезникова РАН
Publisher: name: Институт проблем управления им. В. А. Трапезникова РАН
Year: 2021

description: Материалы XXIX международной конференции "Проблемы управления безопасностью сложных систем"
Investigation of Selective Emitter Solar Cells Fabricated Using Reactive Ion Etching
Creators: name: Yang, J.Y.
name: Song, J.S.
name: Cho, Y.H.
name: Kwak, J.S.
name: Lee, J.S.
name: Bae, Y.C.
name: Hong, J.P.
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; 2420-2423
description: We report the performance of selective emitter solar cells using a special technique in order to
solve the problems of reactive ion etching (RIE) texturing. For the fabrication of solar cells, at first, the POCl3
diffusion were performed to form the heavily doped emitter and then Ni layer as a front finger was deposited
using sputtering method. The Ni layer worked not only as an etch barrier, but also a plating seed layer. Also, the
Ni layer was chosen as a contact metal in order to form Ohmic contact with emitter. Next, the sample was moved
into the RIE chamber to remove the heavily doped Si emitter between the fingers. Finally, we performed in-situ
RIE anisotropy etching and texturing procedures using the fluorine based gas. Our initial etch selectivity of Si/Ni
and contact resistance of Ni/heavily doped emitter were above 1000 and below 1×10-3 Ω-cm2, respectively. We
also found that the selective etching using a RIE method can be useful in the developments of selective emitter
solar cells.
Re-Use of c-Si Solar Cells from Failed PV Modules
Creators: name: Li, H.Y.
name: Luo-Hoffmann, Y.
name: Ballif, C.
name: Perret-Aebi, L.E.
Publisher: name: WIP
Year: 2011
Subjects: Components for PV Systems
Environmental Impacts, Recycling and Waste Management

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 3815-3817
description: The recycling or re-use of failed c-Si PV modules could be a significant concern in the near future. The
existing approaches for cell recovery can be improved both environmentally and economically friendly. Here we
propose a novel double encapsulation module with an optical coupler (DEMOC) module design for convenient c-Si
cell recovery. In this paper, the concept of DEMOC is illustrated. We successfully determine the materials and
lamination recipes for single-cell re-usable mini-modules. The optical reflection and IV performance of DEMOC are
measured and prove to surpass those of an earlier-proposed design without optical coupler. The cell recovery
procedure of the DEMOC design is discussed at last.
Designing and Optimizing the Control System of the Tracking Mechanism for a String of Photovoltaic Modules
Creators: name: Tatu, I.N.
name: Alexandru, C.
name: Enescu, M.
Publisher: name: WIP
Year: 2011
Subjects: Components for PV Systems
Balance of System Components

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 3795-3798
description: This paper presents the design & simulation in virtual environment of a mono-axis tracking system
used to increase the efficiency of a string of photovoltaic modules. The tracking mechanism is used to simultaneously
change the position of all modules in the string in order to keep the optimum Sun-Earth position. The virtual
prototype of the photovoltaic system was designed with the following software solutions: CATIA – for the solid
modeling, ADAMS – for developing the multi-body mechanical model, and MATLAB/Simulink – for the control
system design. The solar tracker was optimized considering a minimum energy consumption for tracking with a
maximum received solar energy. The motion law was simulated for relevant days during the year.
FASTCAT-Cloud: upload and analyse all your nature videos and pictures on the FASTCAT-Cloud website
Creators: name: Justamante, Ángela
name: Leymarie, Frederic Fol
name: Rueger, Stefan
name: Waddington, Kai
name: Miklas Riechmann
name: Rueger, Ryan
name: Gardiner, Ross
name: Liu, Clara
name: Liñán, Sonia
name: Soacha, Karen
name: Piera, Jaume
Publisher: name: Zenodo
Year: 2023
Subjects: camera trap
web service
biodiversity
artificial intelligence
AI
citizen science

description: FASTCAT (Flexible Ai System for CAmera Traps)-Cloud is an open website service able to: (1) Automatically filter out most unwanted pictures and video streams, keeping images of animals. This saves you time as empty recordings or photos can be removed automatically. (2) Integrate machine learning technology (a subset of AI – Artificial Intelligence) to automatically identify species, which means that you will see the suggested species names for each image. (3) Provide you with the ability to obtain counts (number of species recorded or photographed), i.e. how many different species have been sighted this week, or how many times you have photographed a fox in the last 30 days. (4) Eventually, this website service will connect with biodiversity citizen observatories. So, if you are a citizen scientist that uses a camera trap, you will be able to easily upload the picture to some platforms such as iSpot or SensorThingsAPI plus. The idea is to create a Graphical User Interface (GUI) that allows you to view the proposed species name. If you accept the suggested classification from the system, the picture is uploaded to any of the chosen biodiversity citizen observatories with the proposed identification name. More information: https://cos4cloud-eosc.eu/services/fastcat-cloud-camera-trap/ FASTCAT-Cloud has been developed by DynAikon in the Cos4Cloud framework. Infographic's designer: Lucas Wainer.
Numerical Analysis of the Performance of an Integrated Solar Photovoltaic-Thermal Hybrid Air Collector Suitable for a Ventilation Device
Creators: name: Assoa, Y.B.
name: Boillot, B.
name: Sauzedde, F.
Publisher: name: WIP
Year: 2011
Subjects: Components for PV Systems
Balance of System Components

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 3808-3811
description: This work concerns a solar PV/T hybrid air collector which can be integrated into a building roof. It is composed of
photovoltaic modules that can be ventilated or not on the underside through an insulated air gap. Firstly, a steady state
2D model of the component following a nodal approach is presented. The pressure gradient of temperature within the
layers is supposed to exist only in the direction of drainage of the stream of air. The temperature at each node can be
considered as a mean temperature. The air gap is discretized through the collector length. Then, the prototype is
studied under a full building integration setup in order to determine its influence on the building energy demands. The
addition of 4 m² of this solar collector in a building double flow ventilation system enables to reduce the heat
demands by nearly 1%. As further step, this numerical study will be carried out on a test bench in situ.
17.9% Back-Contacted Mc-Si CellsResulting in Module Efficiency of 17.0%
Creators: name: Lamers, M.W.P.E.
name: Tjendgdrawira, C.
name: Koppes, M.
name: Bennett, I.
name: Bende, E.E.
name: Visser, T.P.
name: Kossen, E.
name: Brockholz, B.
name: Mewe, A.A.
name: Romijn, I.G.
name: Sauar, E.
name: Carnel, L.
name: Julsrud, S.
name: Naas, T.
name: De Jong, P.C.
name: Weeber, A.W.
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; 1417-1421
description: We obtained 17.9% cell efficiency on 160 micron thin cells sized 156 x 156 mm2 using ECN’s Metal-
Wrap-Through (MWT) concept. Several cell processing steps were optimized and this led to an increase of more than
2% absolute in cell efficiency compared with previously reported values [1]. With these high-efficiency cells a 36-
cell module was manufactured in our industry scale module pilot line. The aperture area efficiency of this module
was 17.0% (as independently confirmed by JRC-ESTI): a world record in his category in 2009 and early 2010 [2]. In
this module the average cell efficiency was 17.8%; this shows a small difference between cell and module efficiency.
Ultra-Short Deposition Times for a-Si/µc-Si Tandem Cells on Texture-Etched ZnO:Al
Creators: name: Gordijn, A.
name: Schicho, S.
name: Kirchhoff, J.
name: Reetz, W.
name: Kilper, T.
name: Zhu, H.
name: Bunte, E.
name: Hüpkes, 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; 2835-2838
description: In this paper we explore the efficiency potential of a-Si/μc-Si tandem cells that are produced under
conditions that lead to a considerable production cost reduction. On standard lab-type texture-etched ZnO:Al, 1 cm²
a-Si:H/μc-Si:H tandem test cells on a deposition area of 30 x 30 cm² were made that showed an initial efficiency of
9.9%, whereas the total deposition time of intrinsic layers was only 22 minutes. The silicon thickness is only 600 nm.
On high-rate texture-etched ZnO:Al an efficiency of 9.4% initial was reached. Standard light-induced degradation
experiments showed a degradation rate of only 5 to 8% after 1000 hours. The regime of very short preparation times
and relatively high stabilized efficiencies is relevant for production.
High Efficiency Multicrystalline Silicon Module Using Back Contact Solar Cells
Creators: name: Umeda, K.
name: Sugawara, S.
name: Sakamoto, T.
name: Yamatani, M.
name: Fukui, K.
name: Shirasawa, K.
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; 1422-1423
description: We developed a new cell structure, Metal Wrap Through Back Contact cell (MWT-BC cell) which
enhanced our mc-Si solar cell efficiency to 18.3% in September, 2006. Using this MWT-BC cell, we have optimized
our module structure and simplified our module manufacturing process. We achieved a new world record efficiency
of 17.3% for mc-Si module as of Feb. 12, 2010 (aperture area efficiency, measured by AIST; National Institute of
Advanced Industrial Science and Technology) using 54 cells in series. This module structure and manufacturing
process is profitable to very thin wafers, which will come up in the near future for cost reduction reason.
Process Drifts Modeling during the Initial Growth Stage of Microcrystalline Silicon Thin Films
Creators: name: Amanatides, E.
name: Mataras, D.
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; 2842-2845
description: A study of the initial growth stage and related process drifts during the deposition of microcrystalline
silicon thin films from high pressure – high power SiH4/H2 RF discharges was performed. A 2D time dependent fluid
simulator of SiH4/H2 discharges was used for this investigation. As a first step, the model calculations are compared to the
experimental findings concerning the variation of species density and temperature during the deposition. In addition, the
variation of electrical properties, gas phase chemistry and neutral species properties for 30 min of deposition are presented.
The main origin of process drifts that affect gas and substrate temperature and consequently the species density, species
fluxes and deposition rate is then revealed and discussed.
An Application-Level Dependable Technique for Farmer-Worker Parallel Programs
Creators: name: De Florio, Vincenzo
name: Deconinck, Geert
name: Lauwereins, Rudy
Publisher: name: arXiv
Year: 2016
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: An application-level technique is described for farmer-worker parallel applications which allows a worker to be added or removed from the computing farm at any moment of the run time without affecting the overall outcome of the computation. The technique is based on uncoupling the farmer from the workers by means of a separate module which asynchronously feeds these latter with new "units of work" on an on-demand basis, and on a special feeding strategy based on bookkeeping the status of each work-unit. An augmentation of the LINDA model is finally proposed to exploit the bookkeeping algorithm for tuple management.
description: In LNCS 1225 (1997), Proc. of the High-Performance Computing and Networking Conference ISBN: 978-3-540-62898-9 (Print) 978-3-540-69041-2 (Online)
Application of GaAs/Ge Solar Cells as the Monochromatic Radiation Receiver for Wireless Power Transfer in Space
Creators: name: Bogushevskaya, V.
name: Maslyakov, Y.
name: Nikonov, A.
name: Zhalnin, B.
name: Tugaenko, V.
name: Zayats, O.
name: Matsak, I.
Publisher: name: WIP
Year: 2011
Subjects: Advanced Photovoltaics : New Concepts and Ultra-High Efficiency
Solar Cells, Modules and PV Systems for Space Applications

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 782-784
description: Presently the possibility of an additional power feeding of satellites has become vital for the
development of space technologies. Space industry has launched the production of radiation sources for near infrared
(IR) waveband with efficiency ~50% and unit wattage of about several ten watts. This makes it possible to research
wireless transfer of power using SSC-receiver. In this work for experimental procedure the IR laser diode and single
junction GaAs/Ge SC grown by using MOCVD technology were selected. The experimental specimen is the typical
space solar cell covered with anti-reflection coating (ARC) which reduces losses on reflection of incident radiation.
The pilot contrastive analysis of Si and GaAs SSC has shown that the most effective transducer of monochromatic
radiation for all main parameters is GaAs/Ge SSC (efficiency >30%) comparing to the typical Si SSC (efficiency
~15%). During the experiment the following data have been obtained: CV-characteristics at different laser current
and at different geometrical parameters. These results confirm the opportunity to the effective use of GaAs/Ge SSC
for wireless transfer of power in space.
Versatile Thin-Film Photovoltaic Laser Scribing System
Creators: name: Bartlomé, R.
name: Sinquin, Y.
name: Meyer, S.A.
name: Ballif, C.
name: Raible, A.
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; 2854-2855
description: We present a laser scribing system for mid-size photovoltaic modules (up to 410 × 520 mm2)
implementing a movable diode-pumped solid state laser. In this configuration, the heavy large-area photovoltaic
module does not need to be displaced, allowing for faster and overall more compact industrial systems. Furthermore,
in the vicinity of the thin-film, critical beam parameters such as the depth of focus are kept constant throughout the
scribing process.
Memristive GaN ultrathin suspended membrane array
Creators: name: Dragoman, Mircea
name: Tiginyanu, Ion
name: Dragoman, Daniela
name: Braniste, Tudor
name: Ciobanu, Vladimir
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this paper, we show that ultrathin GaN membranes having a thickness of 15 nm and planar dimensions of 12x184 microns act as memristive devices. This fact is due to the migration of the negatively charged deep traps, which form in the volume of the membrane during the fabrication process, towards the unoccupied surface states of the suspended membranes. The time constant of the migration process is of the order of tens of second and varies with the current or voltage sweep.
description: Accepted for publication in Nanotechnology
Life Cycle Assessment of Heterojunction Solar Cells and Modules
Creators: name: Olson, C.
name: De Wild-Scholten, M.
name: Scherff, M.
name: Ribeyron, P.-J.
Publisher: name: WIP
Year: 2011
Subjects: Components for PV Systems
Environmental Impacts, Recycling and Waste Management

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 3822-3825
description: Heterojunction solar cells have demonstrated high efficiencies and are also viewed as potentially highly
sustainable. A life-cycle assessment (LCA) was performed to compare the sustainability of heterojunction (HJ) solar
cells, as developed in the HETSI project (FP7-ENERGY-2007-1-RTD), to conventional mono-crystalline Si solar cells.
This calculation resulted in a comparison of the cumulative energy demand (MJ) and the global warming potential (kg-
CO2 eq) for HJ cells versus the mono-crystalline cells. The energy payback times (EPBT) of modules of two different HJ
cell designs was found to be 1.2 and 1.2 years, while that of a ‘standard’’ mono-crystalline Si module was 1.5 years. The
carbon footprint for module fabrication for the mono-crystalline Si module, and the two modules with slightly different
HJ cell designs were: 0.9, 0.8 and 0.8 kg CO2 equivalents/ Wp, respectively. Assuming a southern Europe illumination
of 1700 kWh/m2yr, a 75% performance ratio and a 30 year lifetime and no performance degradation, these values may
also be expressed as 24, 20 and 20 g-CO2 equivalent/kWh. The higher efficiency of the HJ solar cells factors into a more
favourable energy payback time, and a lower carbon footprint (per Wp or per kWh). A discussion of the cumulative
energy demand and environmental impact of the manufacturing processes, together with an outlook on resource
depletion, points out the materials and processes which require further development for future manufacturing
requirements of lower energy use and lower costs. This is the first time an LCA of c-Si/ a-Si:H HJ solar cell technology is presented.
Frozen impacted drop: From fragmentation to hierarchical crack patterns
Creators: name: Ghabache, Elisabeth
name: Josserand, Christophe
name: Séon, Thomas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate experimentally the quenching of a liquid pancake, obtained through the impact of a water drop on a cold solid substrate ($0$ to $-60^\circ$C). We show that, below a certain substrate temperature, fractures appear on the frozen pancake and the crack patterns change from a 2D fragmentation regime to a hierarchical fracture regime as the thermal shock is stronger. The different regimes are discussed and the transition temperatures are estimated through classical fracture scaling arguments. Finally, a phase diagram presents how these regimes can be controlled by the drop impact parameters.
MPEC 2025-G127 : 2025 EC13
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 EC13

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Wider aspects of a career in entomology 12: Insects of Canada
Creators: Danks, Hugh V.
Publisher: name: University of Alberta Library
Year: 2022

Personal outdoor experiences illustrate the diversity of insects and of the zones and habitats they occupy in Canada, introducing common and easily seen species of butterflies, dragonflies, wasps, biting flies, and other groups, and some of the scientific lessons they can teach.
State Orthogonality, Boson Bunching Parameter and Bosonic Enhancement Factor
Creators: name: Marchewka, Avi
name: Granot, Er'el
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is emphasized that the bunching parameter $β=P_B/P_D$ , i.e. the ratio between the probability to measure two bosons and two distinguishable particles at the same state, is a constant of motion and depends only on the overlap between the initial wavefunctions. This ratio is equal to $β=2/(1+I^2)$ , where $I$ is the overlap integral between the initial wavefunctions. That is, only when the initial wavefunctions are orthogonal this ratio is equal to 2, however, this bunching ratio can be reduced to 1, when the two wavefunctions are identical. This simple equation explains the experimental evidences of a beam splitter. A straightforward conclusion is that by measuring the local bunching parameter $β$ (at any point in space and time) it is possible to evaluate a global parameter$ I$ (the overlap between the initial wavefunctions). The bunching parameter is then generalized to arbitrary number of particles, and in an analogy to the two-particles scenario, the well-known bosonic enhancement appears only when all states are orthogonal.
description: 25 pages, 8figures,to be published in epjd