cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
21.40% Efficient Large Area Screen Printed Industrial PERC Solar Cell
Creators: name: Chen, D.
name: Deng, W.
name: Dong, J.
name: Ye, F.
name: Zhu, H.
name: Li, H.
name: Jiang, Y.
name: Gao, B.
name: Zhong, M.
name: Cui, Y.
name: Chen, Y.
name: Yang, Y.
name: Feng, Z.
name: Altermatt, P.P.
name: Verlinden, P.J.
Publisher: name: WIP
Year: 2015
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Improvements

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 334-340
description: We report on a process and performance analysis of screen printed industrial PERC solar cells with champion efficiency of 21.40% (as confirmed by Fraunhofer CalLab). Advanced cell processing technologies such as 5 bus-bars, fine line printing, rear side passivation and local metallization were adopted. A detailed cell characterization and a loss analysis show that the fill factor is lowered by recombination saturation mechanisms. Overall, the front metal optical shading, bulk recombination and internal resistance loss are the three dominant power losses.
Estimates of crystalline LiF thermal conductivity at high temperature and pressure by a Green-Kubo method
Creators: name: Jones, R. E.
name: Ward, D. K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Given the unique optical properties of LiF, it is often used as an observation window in high-temperature and pressure experiments; and, hence, estimates of its transmission properties are necessary to interpret observations. Since direct measurements of the thermal conductivity of LiF at the appropriate conditions are difficult, we resort to molecular simulation methods. Using the Belonoshko et al. (2000) empirical potential validated against ab initio phonon density of states, we estimate the thermal conductivity of LiF at high temperatures (1000-4000K) and pressures (100-400 GPa) with the Green-Kubo method. We also compare these estimates to those derived directly from ab initio data. To ascertain the correct phase of LiF at these extreme conditions we calculate the (relative) phase stability of the B1 and B2 structures using a quasiharmonic ab initio model of the free energy. We also estimate the thermal conductivity of LiF in an uniaxial loading state that emulates initial stages of compression in high-stress ramp loading experiments and show the degree of anisotropy induced in the conductivity due to deformation.
description: 32 pages, 12 figures
Harpyionycteris celebensis Miller and Hollister 1921
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Harpyionycteris
Harpyionycteris celebensis

description: Harpyionycteris celebensis Miller and Hollister, 1921. Proc. Biol. Soc. Washington, 34:99. TYPE LOCALITY: Indonesia, Sulawesi, middle Sulawesi, Gimpoe. DISTRIBUTION: Sulawesi. COMMENTS: Considered a subspecies of whiteheadi by Laurie and Hill (1954), but as a separate species by Peterson and Fenton (1970).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 142, DOI: 10.5281/zenodo.7353060
description: {"references": ["Laurie, E. M. O., and J. E. Hill. 1954. List of land mammals of New Guinea, Celebes and adjacent islands 1758 - 1952. British Museum (Natural History) Publications, London, 175 pp.", "Peterson, R. L., and M. B. Fenton. 1970. Variation in bats of the genus Harpionycteris, with the description of a new race. Royal Ontario Museum, Life Sciences, Occasional Papers, 17: 1 - 15."]}
Exactness and faithfulness of monoidal functors
Creators: name: Kahn, Bruno
Publisher: name: arXiv
Year: 2021
Subjects: subject: Category Theory (math.CT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Inspired by recent work of Peter O'Sullivan (arXiv:2012.15703), we give a condition under which a faithful monoidal functor between abelian $\otimes$-categories is exact.
Effects of post-harvesting practices on heavy metal levels of mopane caterpillar (Gonimbrasia belina) products and associated risk assessment
Creators: name: Murefu, T.R.
name: Muriithi, A.N.
name: Musundire, R.
Publisher: name: Brill Online
Year: 2023
Subjects: classificationCode: 309999
subject: Other agricultural, veterinary and food sciences not elsewhere classified

description: Mopane caterpillars (Gonimbrasia belina) are one of the most consumed edible insects in Southern Africa, and they contribute nutritional benefits to human health. However, their contribution to the food and nutritional security can be hindered by food safety concerns due to heavy metal contamination associated with harvesting, processing and poor post-harvest practices. This study investigated the effectiveness of post-harvest practices (degutting, charcoal roasting and sun drying, boiling, frying and open pan roasting) in reducing the heavy metal contaminants (cadmium (Cd), mercury (Hg), lead (Pb), nickel (Ni), aluminium (Al), zinc (Zn), copper (Cu) and iron (Fe)) in mopane caterpillar sourced from Gwanda district in Zimbabwe. The post-harvest practice categories used in this study included: unprocessed (ungutted and naturally degutted samples), processed (manually degutted, and charcoal roasted and sun-dried), and cooked (boiled and salted; boiled, salted and roasted, and boiled, salted and fried) samples. An atomic absorption spectrometry (AAS) was used for quantification of metals and the values detected were used to assess health risks to consumers using a quantitative risk assessment calculation method. The unprocessed and manually degutted samples showed higher levels Cd and traces of Pb, while charcoal roasting and sun drying resulted in elevated levels of Al, Zn, Cu and Fe. Hg and Ni were not detected in any of the unprocessed, processed or cooked samples. Cooking processes resulted in reduction of the concentrations of detected metals to levels within the permissible values. The health risk assessment disclosed noncarcinogenic risks based on the high hazard index (HI) values (HI > 1) in unprocessed, processed, boiled and salted, and boiled, salted and roasted samples, indicating that caution should be taken. The overall findings from the study shows that by cooking mopane caterpillars through boiling and frying, health risks associated with heavy metal contamination can be reduced.
The PERC+ Cell: a 21%-Efficient Industrial Bifacial PERC Solar Cell
Creators: name: Dullweber, T.
name: Kranz, C.
name: Peibst, R.
name: Baumann, U.
name: Hannebauer, H.
name: Fülle, A.
name: Steckemetz, S.
name: Weber, T.
name: Kutzer, M.
name: Müller, M.
name: Fischer, G.
name: Palinginis, P.
name: Neuhaus, D.H.
Publisher: name: WIP
Year: 2015
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Improvements

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 341-350
description: Passivated Emitter and Rear Cell (PERC) solar cells are currently being introduced into mass
production. In this paper we report a novel PERC solar cell design which applies a screen-printed rear Al finger grid
instead of the conventional full-area aluminum (Al) rear layer while using the same PERC manufacturing sequence.
We name this novel cell concept PERC+ since it offers several advantages. In particular, the Al paste consumption of
the PERC+ cells is drastically reduced to 0.15 g instead of 1.6 g for the conventional PERC cells. The Al fingers
create 2 μm deeper Al-BSFs which increases the open circuit voltage by 3 mV. The 5 busbar Al finger grid enables
bifacial applications of the PERC+ cells with front side efficiencies up to 21.2% and rear side efficiencies up to
16.7% measured with a black chuck. The corresponding bifaciality is up to 80.0%. When measured with a reflective
brass chuck, the PERC+ cells demonstrate efficiencies up to 21.5% compared to conventional PERC cells with
21.1% efficiency. Whereas ISFH developed the aforementioned PERC+ results, SolarWorld independently pioneered
a very similar bifacial PERC+ cell process starting in 2014. Transfer into mass production has been successfully
accomplished and novel glass-glass bifacial PERC+ modules have been launched at the Intersolar 2015 based on a
most simple, lean and cost-effective bifacial cell process. These new bifacial PERC+ modules show an increase in
annual energy yield between 5 and 25% in simulations which is confirmed by first outdoor measurements.
Topological Spin and Valley Pumping in Silicene
Creators: name: Luo, Wei
name: Sheng, L.
name: Wang, B. G.
name: Xing, D. Y.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose an experimental scheme to realize adiabatic topological spin and valley pumping by using silicene subject to an in-plane $ac$ electric field with amplitude $E_{y}$ and a vertical electric field consisting of an electrostatic component and an $ac$ component with amplitudes $E_{z}^{0}$ and $E_{z}^{1}$. By tuning $E_{z}^{0}$ and $E_{z}^{1}$, topological valley pumping or spin-valley pumping can be achieved. The noisefree valley and spin currents generated could be useful in valleytronic and spintronic applications. This work demonstrates that bulk topological spin or valley pumping is a general characteristic effect of two-dimensional topological insulators, irrelevant to the edge state physics.
description: 8 pages, 3 figures
Oiconomy Pricing - Real price of cocoa liquor from single origin beans, Sierra Leone
Creators: name: van Dalfsen, Anne Floor
name: Hidalgo Daim, Beatriz
name: Croes, Pim R.
name: Vermeulen, Walter J.V.
name: Walker, Anna
Publisher: name: Zenodo
Year: 2023
Subjects: sustainability assessment
Full Cost Accounting
Oiconomy Pricing
sustainability
LCA
sLCA

description: Tradin Organic is a Dutch B2B company, which sources, distributes, and processes organic food ingredients to the international food market. Within its wide product portfolio, the case is single origin, organic cocoa liquor, from cocoa beans which are cultivated by smallholder farmers, located in Sierra Leone. The cocoa beans are bought in from the smallholder farmers and processed in a factory owned by Tradin Organic and stationed in The Netherlands. Tradin Organic has several impact programs aimed at to improving the environmental and social sustainability of the cocoa supplychain but has not yet quantified the externalities associated with the product.
Evaluation of anxiety and depression in patients with morphea taking immunosuppressive drugs during the COVID-19 pandemic
Creators: name: Dadras, Mohammad Shahidi
name: Ahmadzadeh, Zohreh
name: Younespour, Shima
name: Abdollahimajd, Fahimeh
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: During the coronavirus disease 2019 (COVID-19) pandemic, individuals especially those with chronic diseases face various problems like psychological distress. To evaluate anxiety and depression among morphea patients taking immunosuppressants compared with controls during the COVID-19 pandemic. In this case-control study, electronic data of 42 eligible morphea patients and 42 age- and sex-matched healthy subjects were extracted. All participants were asked about adherence to the health protocols and the symptoms of COVID-19. To investigate anxiety and depression, we provided the participants with an online version of the Hospital Anxiety and Depression Scale (HADS) Questionnaire. In this standard questionnaire, a score ≥ 11 represents a significant psychological disorder. The two groups did not differ significantly in the mean HADS-Anxiety (HADS-A) and HADS-Depression (HADS-D) scores (p= .08 and p= .79, respectively). HADS-A and HADS-D scores were ≥ 11 in 16.67% and 11.90% of the patients, respectively. Among the morphea patients, those with sleeping problems during COVID-19 had a significantly higher mean HADS-D score (p= .048). Notably, 21.43% of patients discontinued their treatment due to fear of COVID-19 and experienced disease recurrence. Adherence to health protocols was higher in patients compared with controls. The rate of COVID-19 occurrence was not significantly different between the groups. Although there was no significant difference in anxiety and depression between the groups, it is recommended to provide psychiatric counseling opportunities to morphea patients to improve treatment outcomes during this pandemic.
N-Type and P-Type Silicon Foils Fabricated in a Quasi-Inline Epi Reactor with Bulk Lifetimes Exceeding 500 Μµs
Creators: name: Janz, S.
name: Milenkovic, N.
name: Drießen, M.
name: Reber, S.
Publisher: name: WIP
Year: 2015
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Feedstock, Crystallisation and Wafering

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 288-291
description: In this publication we present free standing p- and n-type Si layers with thicknesses between 40 μm
(EpiFoils) and 150 μm (EpiWafers) produced with epitaxy on electrochemically etched porous Si layers followed by
mechanical lift-off. We show that reorganization and epitaxy in our quasi-inline tool leads to Si layers with very good
crystal quality (etch pit density around 1000 cm-2) and low contamination levels (interstitial Fe concentration around
1010 cm-3). Thin p-type foils with just 40 μm thickness show minority carrier lifetimes of up to 80 μs mainly limited
by a high dopant concentration of 5x1016 cm-3. The n-type epitaxial wafers with 150 μm thickness reach average
minority carrier lifetimes of more than 1.5 ms. Appearing inhomogeneity of minority carrier lifetimes over the
sample area are found to be due to surface cleaning process but not bulk quality related issues. The excellent lifetimes
together with the very constant dopant concentration of our Si layers is sufficient for high efficiency solar cell
architectures and a conversion efficiency of 20 % can be exceeded [1].
The Influence of Melting Interface on the Performance of Seed-Assisted Multi-Crystalline Silicon in Directional Solidification
Creators: name: Qiao, S.
name: Zhang, L.
name: Niu, X.
name: Wang, Q.
name: Pan, M.
name: Wang, J.
name: Zhang, Y.
name: Gao, W.
name: Hu, Z.
name: Xiong, J.
Publisher: name: WIP
Year: 2015
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Feedstock, Crystallisation and Wafering

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 300-303
description: The influence of melting interface on the grain uniformity, dislocation area ratio, grain boundary and
cell efficiency of industrially seed-assisted cast ingots is reported in this paper. The ingot with flat melting interface
and little remaining seeds shows good grain uniformity but high dislocation area ratio. The ingot with flat melting
interface and more remaining seeds shows the similar grain uniformity and the lowest dislocation area ratio and a
higher average solar cell conversion efficiency of about 0.19% in absolute value is obtained in comparison with the
former. While the convex melting interface and partially remaining seeds result in high dislocation area ratio in the
edge brick but hardly impact on the center brick. The initial dislocation area ratio can be effectively limited by
adjusting the melting interface and then growth condition and impurity content should be meticulously controlled to
obtain high performance ingots. It is helpful for quality control of seed-assisted cast ingots in industrial scale.
The information content of brain states is explained by structural constraints on state energetics
Creators: name: Weninger, Leon
name: Srivastava, Pragya
name: Zhou, Dale
name: Kim, Jason Z.
name: Cornblath, Eli J.
name: Bertolero, Maxwell A.
name: Habel, Ute
name: Merhof, Dorit
name: Bassett, Dani S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences
subject: G.3; H.1.1; J.3
subject: 93-08 (primary), 92-08, 94-05 (secondary)

description: Signal propagation along the structural connectome of the brain induces changes in the patterns of activity. These activity patterns define global brain states and contain information in accordance with their expected probability of occurrence. The structural connectome, in conjunction with the dynamics, determines the set of possible brain states and constrains the transition between accessible states. Yet, precisely how these structural constraints on state-transitions relate to their information content remains unexplored. To address this gap in knowledge, we defined the information content as a function of the activation distribution, where statistically rare values of activation correspond to high information content. With this numerical definition in hand, we studied the spatiotemporal distribution of information content in fMRI data from the Human Connectome Project during different tasks, and report four key findings. First, information content strongly depends on the cognitive task. Second, while information content shows similarities to other measures of brain activity, it is distinct from both Neurosynth maps and task contrast maps generated by a general linear model applied to the fMRI data. Third, the brain's structural wiring constrains the cost to control its state, where the cost to transition into high information content states is larger than that to transition into low information content states. Finally, all state transitions - especially those to high information content states - are less costly than expected from random network null models, thereby indicating the brain's marked efficiency. Taken together, our findings establish an explanatory link between the information contained in a brain state and the energetic cost of attaining that state, thereby laying important groundwork for our understanding of large-scale cognitive computations.
description: 16 pages, 4 figures + supplement (5 pages, 5 figures)
Interlaced coarse-graining for the dynamic cluster approximation
Creators: name: Staar, P.
name: Jiang, M.
name: Hähner, U. R.
name: Schulthess, T. C. S.
name: Maier, T. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The dynamical cluster approximation (DCA) and its DCA$^+$ extension use coarse-graining of the momentum space to reduce the complexity of quantum many-body problems, thereby mapping the bulk lattice to a cluster embedded in a dynamical mean-field host. Here, we introduce a new form of an interlaced coarse-graining and compare it with the traditional coarse-graining. While it gives a more localized self-energy for a given cluster size, we show that it leads to more controlled results with weaker cluster shape and smoother cluster size dependence, which converge to the results obtained from the standard coarse-graining with increasing cluster size. Most importantly, the new coarse-graining reduces the severity of the fermionic sign problem of the underlying quantum Monte Carlo cluster solver and thus allows for calculations on larger clusters. This enables the treatment of longer-ranged correlations than those accessible with the standard coarse-graining and thus can allow for the evaluation of the exact infinite cluster size result via finite size scaling. As a demonstration, we study the hole-doped two-dimensional Hubbard model and show that the interlaced coarse-graining in combination with the extended DCA$^+$ algorithm permits the determination of the superconducting $T_c$ on cluster sizes for which the results can be fit with a Kosterlitz-Thouless scaling law.
description: 7 pages, 7 figures
Harpyionycteris whiteheadi Thomas 1896
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Harpyionycteris
Harpyionycteris whiteheadi

description: Harpyionycteris whiteheadi Thomas, 1896. Ann. Mag. Nat. Hist., ser. 6, 18:244. TYPE LOCALITY: Philippines, Mindoro Isl, 5000 ft. (1524 m). DISTRIBUTION: Philippines. SYNONYMS: negrosensis.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 142, DOI: 10.5281/zenodo.7353060
Optimization of Wire Electrical Discharge Machining Process Parameters for Al7075/Al2O3/SiC Composite using Aspect Ratios of Taguchi Method, Taguchi-Pareto and Taguchi-ABC Methods
Creators: name: Meshach Chukwuebuka Ikedue
Publisher: name: Faculty of Engineering Mahasasakham University
Year: 2023
Subjects: wire EDM
aspect ratios
optimisation
orthogonal array
factors
levels

description: Engineering Access, 9, 1, 1-16
Development of an Industrial Applicable Crucible Coating Based on High Pure Silzot SQ Si3N4-Powder
Creators: name: Schneider, V.
name: Reimann, C.
name: Kuczynski, M.
name: Sans, J.
name: Gross, W.
name: Friedrich, J.
Publisher: name: WIP
Year: 2015
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Feedstock, Crystallisation and Wafering

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 307-311
description: Multi crystalline silicon (mc) ingots for PV application are grown by the directional solidification process
using a SiO2-based crucible with a Si3N4-based internal coating as a releasing agent.
The requirements for industrial applicable crucible coatings aim to a high adherence on the crucible. Furthermore an
adequate coating thickness with a high contact angle is needed to reduce the number of silicon penetration points and to
avoid ingot sticking at the triple line. Another requirement is the purity of the crucible coating, which should be high
enough to avoid silicon contamination.
For the production of the crucible coating a Si3N4 powder with high purity (Silzot® SQ) has been used. A laboratory scale
Vertical Gradient Freeze furnace was used to systematically investigate the influence of the oxygen and additive content
of the coating on the adhesion strength, the contact angle and the interstitial oxygen content of the silicon ingot.
It could be shown that a clear non-wetting behavior is reached for a coating roughness of more than 40 μm, for an oxygen
content of 13 wt. % and for the addition of a mixture of additives. The adherence to the crucible strongly depends on the
coating thickness, the oxygen enrichment of the coating and the addition of additives. The interstitial oxygen content of
the silicon ingots increases with increasing oxygen content of the coating.
It will be shown, that by using the high pure Silzot® SQ Si3N4 powder a crucible coating could be developed, which
fulfills the industrial requirements.
Parametric Selection and Optimization for the Drilling Of AZ91 Magnesium Alloys Using the Taguchi Method Incorporating Direct and Aspect Parametric Ratios
Creators: name: Odudare, Samson Oluwaseun
Publisher: name: Faculty of Engineering Mahasasakham University
Year: 2023
Subjects: Aspect ratios
drilling
magnesium AZ91 alloy
optimisation
response table

description: Engineering Access, 9, 1, 31-46
hARTcontROLE. Das Selbstregulationstraining. Erbaut auf Hip Hop. Konstruiert mit Kunst. Verwirklicht durch Dich.
Creators: name: Urbani, Tamara
Publisher: name: Zenodo
Year: 2020
Subjects: Sonderpädagogik
Selbstregulation
Kunst
Masterarbeit

description: Selbstregulation steht für achtsames, bewusstes und überlegtes Handeln. Strategien dafür erfordern Aufbau und Training um effektiv zu sein. Ein neu entwickeltes Selbstregulationstraining, welches alterskompatibel und in den Regelunterricht integrierbar ist, soll die Jugendlichen gezielt darin fördern. Das Konzept wurde mittels einer Neuinterpretation der vier Säulen des Hip-Hops und auf den Grundlagen des emotionalen Förderbedarfs von Teenagern konstruiert. Es hat sich gezeigt, dass das Training durchaus wirkungsvoll sein kann, in den Unterricht passt und Einfluss auf das Bewusstsein der Jugendliche hat. Der Transfer gelingt allerdings ausserhalb der Gruppe (noch) nicht, was dazu veranlagt, die Umsetzungsform zu überbedenken. Daraus resultiert ein überarbeitetes Produkt, welches viele Varianten der Umsetzung ermöglicht.
Sequestering effects on and of vacuum decay
Creators: name: Kaloper, Nemanja
name: Padilla, Antonio
name: Stefanyszyn, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider phase transitions and their contributions to vacuum energy in the manifestly local theory of vacuum energy sequestering. We demonstrate that the absence of instabilities imposes constraints on the couplings of gravitating and non-gravitating sectors, which can be satisfied in a large class of models. We further show by explicit construction that the vacuum energy contributions to the effective cosmological constant in the descendant vacua are generically strongly suppressed by the ratios of spacetime volumes of parent and descendant geometries. This means that the cosmological constant in de Sitter descendant vacua remains insensitive to phase transitions which may have occurred in the course of its cosmic history.
description: 15 pages RevTeX, 5 figures
Drying Kinetics of House Cricket by Hot Air Drying using Full Air Re-circulation Tunnel under Varying Temperatures and Air Velocities
Creators: name: Bhuchiss Tanwanichkul
Publisher: name: Faculty of Engineering Mahasasakham University
Year: 2023
Subjects: house cricket
thin layer drying
mathematical model
activation energy

description: Engineering Access, 9, 1, 56-61
Crystallization in the SDS Process: Tests on Single Crystalline Silicon Wafers
Creators: name: Pó, J.M.
name: Pera, D.
name: Costa, I.
name: Sousa, P.M.
name: Lobato, K.
name: Maia Alves, J.
name: Vallêra, A.M.
name: Serra, J.M.
Publisher: name: WIP
Year: 2015
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Feedstock, Crystallisation and Wafering

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 292-294
description: The crystallization step is crucial for the quality of the silicon ribbons produced by the SDS process. A
new type of furnace, with the floating molten zone formed by laser heating, was built and is being tested. Here we
report on a study on the sensitivity of ribbon quality to non-uniformities in laser power distribution. Ribbons remain
quasi-monocrystalline, with transverse thickness variations that correlate with non-uniform laser power distribution.
Photoluminescence (PL) shows a pattern of dark bands perpendicular and parallel to the growth direction, attributed
to variations of crystallization velocity and laser power distribution, respectively. The dislocation densities are
between 2x105 and 8x105 cm-2 except along high dislocation lines. Dislocation density maps do not correlate with the
PL maps, possibly dominated by the dislocation multiplication during cooling.
La Révolte mode d’emploi suivi de Néron
Creators: name: Chaplain Corriveau, Charles-Etienne
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2023
Subjects: Révolte
Histoire conceptuelle
Phraséologie politique
Totalitarisme
Philosophie de l'action
Guerre
Révolution
Mythe
Libéralisme
Marxisme
Weber
Arendt
Foucault
Aron
Freud
Jung
Nietzsche
Sociocritique
Théâtre
Néron

description: Cette thèse est composée de trois parties de tailles inégales. Au centre, une pièce de théâtre intitulée Néron. Cette pièce décrit l’histoire d’une révolte ratée. Néron, nouvellement empereur, peine à concilier ses aspirations artistiques aux impératifs du pouvoir. Des sénateurs conspirent à le remplacer. Chaque personnage ambitionne de mener la prochaine révolution qui portera Rome vers une nouvelle gloire. Aucun d’entre eux ne réussira. Les augures promettaient un âge d’or ; Néron, conseillé par un mauvais génie, précipitera la chute de l’empire. Ce projet de création est suivi de quelques commentaires dans lesquels je dévoile mes sources d’inspiration et je précise certaines idées du texte. Néron est-elle une pièce romantique ? Quelle différence entre Néron et le Caligula d’Albert Camus, le Britannicus de Racine et le Lazarus Laughed de Eugene O’Neill ? Comment adapter l’intrigue à la langue québécoise ? La majorité de la thèse est constituée par la longue étude théorique qui précède la pièce. Cette étude porte sur la révolte politique. Sont examinées les raisons qui contribuent à invalider ses prétentions, quitte à expliquer pourquoi il arrive que cette révolte débouche sur une impasse et qu’elle se termine par un échec. Une révolte prétend changer une situation. Est-elle la seule à militer au nom des principes qu’elle a élus ? Au fil du temps, ces principes se répètent-ils ? Risque-t-elle d’imiter ce qu’elle se jurait de changer ? Comment négocie-t-elle la part inhérente d’aventurisme de son projet ? Comment justifie-t-on la violence révolutionnaire ? Les artistes et les intellectuels ont-ils un rôle fondamental ou subalterne à jouer dans cette révolte ? Les images et les symboles auxquels elle a recours ont-ils un contenu idéologique qui leur est propre ou les détourne-t-elle à des fins polémiques ? Peut-on mener une révolte politique en dehors du champ politique ? S’appuyant, notamment, sur les écrits de Max Weber, Hannah Arendt, Raymond Aron, Michel Foucault, Marcel Gauchet et Marc Angenot, cette étude reconstruit les phraséologies politiques de la révolte pour mieux mettre en valeur certains des défis structurants auxquels elle doit faire face.
Low Cost / High Quality Silicon Production by Centrifuge CVD Reactor Upscaled and Hot Harvest
Creators: name: Filtvedt, W.O.
name: Klette, H.
name: Sørensen, S.
name: Filtvedt, J.
Publisher: name: WIP
Year: 2015
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Feedstock, Crystallisation and Wafering

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 284-287
description: Dynatec has earlier reported findings from a novel patented design of a rotating CVD chamber for
production of polysilicon by decomposition of monosilane. The results presented here are from the second generation
of the reactor type with higher capacity and possibility to harvest produced silicon without cooling the reactor. This is
the first reactor in the world capable of converting about 98% of the inserted monosilane into high quality dense
crystalline silicon without fines. Results and overall design is presented.
Decoupling of the many-body effects from the electron mass in GaAs by means of reduced dimensionality
Creators: name: Vianez, P. M. T.
name: Jin, Y.
name: Tan, W. K.
name: Liu, Q.
name: Griffiths, J. P.
name: Farrer, I.
name: Ritchie, D. A.
name: Tsyplyatyev, O.
name: Ford, C. J. B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Determining the (bare) electron mass $m_0$ in crystals is often hindered by many-body effects since Fermi-liquid physics renormalises the band mass, making the observed effective mass $m^*$ depend on density. Here, we use a one-dimensional (1D) geometry to amplify the effect of interactions, forcing the electrons to form a nonlinear Luttinger liquid with separate holon and spinon bands, therefore separating the interaction effects from $m_0$. Measuring the spectral function of gated quantum wires formed in GaAs by means of magnetotunnelling spectroscopy and interpreting them using the 1D Fermi-Hubbard model, we obtain $m_0=(0.0525\pm0.0015)m_\textrm{e}$ in this material, where $m_\textrm{e}$ is the free-electron mass. By varying the density in the wires, we change the interaction parameter $r_\textrm{s}$ in the range from $\sim$1-4 and show that $m_0$ remains constant. The determined value of $m_0$ is $\sim 22$% lighter than observed in GaAs in geometries of higher dimensionality $D$ ($D>1$), consistent with the quasi-particle picture of a Fermi liquid that makes electrons heavier in the presence of interactions.
description: 13 pages, 9 figures
Hypsignathus H. Allen 1861
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Hypsignathus

description: Hypsignathus H. Allen, 1861. Proc. Acad. Nat. Sci. Philadelphia, p. 156. TYPE SPECIES: Hypsignathus monstrosus H. Allen, 1861. COMMENTS: Revised by Bergmans (1989).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 142, DOI: 10.5281/zenodo.7353060
description: {"references": ["Bergmans, W. 1989. Taxonomy and biogeography of African fruit bats (Mammalia: Megachiroptera). 2. The genera Micropteropus Matschie, 1899, Epomops Gray, 1870, Hypsignathus H. Allen, 1861, Nanonycteris Matschie, 1899, and Plerotes Andersen, 1910. Beaufortia, 39 (4): 89 - 153."]}
Flows of $\mathrm{G}_2$-structures on contact Calabi--Yau $7$-manifolds
Creators: name: Lotay, Jason
name: Earp, Henrique N. Sá
name: Saavedra, Julieth
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C44, 53C25, 53C10

description: We study the Laplacian flow and coflow on contact Calabi-Yau $7$-manifolds. We show that the natural initial condition leads to an ancient solution of the Laplacian flow with a finite time Type I singularity which is not a soliton, whereas it produces an immortal (though not eternal and not self-similar) solution of the Laplacian coflow which has an infinite time singularity, that is Type IIb unless the transverse Calabi--Yau geometry is flat. The flows in each case collapse (after normalising the volume) to a lower-dimensional limit, which is either $\mathbb{R}$ for the Laplacian flow or standard $\mathbb{C}^3$ for the Laplacian coflow. We also study the Hitchin flow in this setting, which we show coincides with the Laplacian coflow up to reparametrisation of time, and defines an (incomplete) Calabi--Yau structure on the spacetime track of the flow.
description: v2: minor corrections. To appear in Annals of Global Analysis and Geometry
Hypsignathus monstrosus H. Allen 1861
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Hypsignathus
Hypsignathus monstrosus

description: Hypsignathus monstrosus H. Allen, 1861. Proc. Acad. Nat. Sci. Philadelphia, p. 157. TYPE LOCALITY: Gabon. DISTRIBUTION: Sierra Leone to W Kenya, south to Zambia and Angola; Bioko. Records from Gambia and Ethiopia are doubtful. SYNONYMS: labrosus. COMMENTS: See Langevin and Barclay (1990, Mammalian Species, 357).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 142, DOI: 10.5281/zenodo.7353060
description: {"references": ["Langevin, P., and R. M. R. Barclay. 1990. Hypsignathus monstrosus. Mammalian Species, 357: 1 - 4."]}
Gemeinsam auf dem Lernweg mit lösungsorientierten Gesprächen Eine Handreichung zur Förderung der Lern- und Leistungsmotivation bei Kindern mit Förderbedarf
Creators: name: Landolt, Sibylle
name: Strickler, Sibylle
Publisher: name: Zenodo
Year: 2020
Subjects: Sonderpädagogik
Schulische Heilpädagogik
Förderunterricht
Leistungsmotivation
Masterarbeit

description: In der vorliegenden Masterarbeit wurde die Wirkung von lösungsorientiertem Über-LernenKommunizierens und ein möglicher positiver Einfluss auf die Lern- und Leistungsmotivation bei Schülerinnen und Schülern mit Förderbedarf des 2. Zyklus untersucht. Das Über-Lernen-Kommunizieren durch lösungs- und ressourcenorientierte Gespräche in der Haltung der positiven Erwartung eignet sich nach Steiner und Berg (2019) gerade bei Kindern mit Förderbedarf, um ihr Denken und Handeln besser zu verstehen, verborgene Ressourcen ans Licht zu bringen und eine positive Beziehung zu unterstützen. Durch theoriegestützte Handlungsmodelle entwickelten die Autorinnen eine Lern-Gesprächsreihe, welche die Herausarbeitung von Zielen ermöglicht. Infolge der lösungsorientierten Gesprächsführung erleben Kinder mit Hilfe spezifischer Fragetechniken Erfahrungen kleiner Veränderungen, Fortschritte und Erfolge. Die Umsetzung und Handhabung der Lerngesprächsreihe wurde von den Autorinnen mit 6 Kindern durchgeführt und evaluiert. Weiter wurde diese von unabhängigen Heilpädagoginnen erprobt und beurteilt. Es wurde untersucht, ob sich durch die lösungsorientierte Lerngesprächsreihe Veränderungen in Bezug auf die Lernmotivation beobachten lassen und inwiefern die lösungsorientierten Fragetechniken für den Gesprächsverlauf hilfreich sind. Die Selbsteinschätzung der Lern- und Leistungsmotivation der Kinder erfolgte mittels dem standardisierten Testverfahren SELLMO. Die Ergebnisse wurden zu den Fremdeinschätzungen der Klassenlehrpersonen und Heilpädagoginnen in Beziehung gesetzt und in einen Bezug zu den Erkenntnissen aus der teilnehmenden Beobachtung ausgewertet und interpretiert. Die qualitativ und quantitativ erfassten Ergebnisse zeigen eine positive Tendenz zur Steigerung der Lern-und Leistungsmotivation.
Development of Multicrystalline Silicon for 20 % Efficient n-Type Solar Cells
Creators: name: Riepe, S.
name: Krenckel, P.
name: Schindler, F.
name: Schmid, C.
name: Strauch, T.
name: Benick, J.
name: Schubert, M.C.
Publisher: name: WIP
Year: 2015
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Feedstock, Crystallisation and Wafering

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 295-299
description: Multicrystalline silicon suitable for high efficient n-type solar cells has been developed by directional
solidification with seeded growth. The effect of varying initial grain sizes on mean grain size and dislocated area
fraction over ingot height has been studied by applying different seeding compositions. Granular seed material
resulted in the smallest initial grain size at the ingot bottom and the lowest dislocated area fraction at each ingot
height. Lifetime analysis before and after a Boron diffusion step revealed that recombination in dislocated areas as
well as grain boundaries can limit the mean lifetime in different heights in the same ingot. The efficiencies of solar
cells with the TOPCon structure on these materials were predicted by an ELBA analysis. By use of a multicrystalline
silicon plate as seed material a high quality material with a predicted cell efficiency of 20 % for processed isotextured
wafers of the top ingot region could be realised. Solar cell efficiencies exceeding 21 % are expected if further
material optimization by suitable seed selection and an adapted texturing process is applied.
Relaxation of nonequilibrium quasiparticles in a superconductor normal metal point contact
Creators: name: Yanson, I. K.
name: Bobrov, N. L.
name: Rybal'chenko, L. F.
name: Fisun, V. V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The point-contact spectra of tantalum in the superconducting state, with $Ta$, $Cu$, and $Au$ counterelectrodes, have been studied. We discovered some new distinctive features, whose position on the $eV$ axis is determined by the critical power required for the injection of nonequilibriumquasiparticles. At this level of power the band gap $Δ$ decreases abruptly in the vicinity of the contact. A correction to the point-contact spectrum, with the sign opposite to that of the usual correction, arises in the region of phonon energies. The maxima in the $Ta$ spectrum become sharper and their position on the energy axis becomes stabilized near the values $e{{V}_{ph}}=7.0$, 11.3, 15.5, and 18 $meV$, which correspond to low phonon group velocities $\partial ω/\partial q\simeq 0$ in $Ta$. This is confirmed by the existence of corresponding flattenings on the dispersion relations $ω(q)$ of lattice vibrations. Slow phonons are created near the $N-S$ interface in quasiparticle recombination and relaxation processes and cause a decrease in $Δ$ and an increase in the differential resistance in the vicinity of $e{{V}_{ph}}$. An excess quasiparticle charge is accumulated in the region of the contact, producing a correction to the resistance, which decreases as $eV$, $T$, and $H$ increase. These mechanisms are particularly effective in dirty contacts, thus permitting phonon spectroscopy in the superconducting state even when the current flow occurs in a nearly thermal mode.
description: 13 pages, 16 figures
Two Methods for High Performance Mc-Si Ingot Growth
Creators: name: Zhiqiang, Z.
name: Xiong, Z.
name: Ye, H.
name: Fu, S.
name: Feng, Z.
name: Verlinden, P.J.
Publisher: name: WIP
Year: 2015
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Feedstock, Crystallisation and Wafering

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 304-306
description: Two methods for growing high performance multi-crystalline silicon (HP mc-Si) ingots and wafers are
introduced and compared in this paper. The HP mc-Si ingots grown by both of the two methods exhibit the similar
small grain size and low defect density. The ingot grown by the coating inducing method with a coating designed by
Trina and optimized process presents a similar quality as ingots grown by the seed inducing method. Moreover, there
is no seed left at the bottom of the ingot in the coating inducing method, thus it achieves at least 5% abs. gain of the
ingot yield, which means a lower production cost and is more favorable in mass production.
Uniform ergodicities and perturbation bounds of Markov chains on ordered Banach spaces
Creators: name: Özcan, Nazife Erkurşun
name: Mukhamedov, Farrukh
Publisher: name: arXiv
Year: 2016
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47A35, 60J10, 28D05

description: It is known that Dobrushin's ergodicity coefficient is one of the effective tools in the investigations of limiting behavior of Markov processes. Several interesting properties of the ergodicity coefficient of a positive mapping defined on ordered Banach space with a base have been studied. In this paper, we consider uniformly mean ergodic and asymptotically stable Markov operators on ordered Banach spaces. In terms of the ergodicity coefficient, we prove uniform mean ergodicity criterion in terms of the ergodicity coefficient. Moreover, we develop the perturbation theory for uniformly asymptotically stable Markov chains on ordered Banach spaces. In particularly, main results open new perspectives in the perturbation theory for quantum Markov processes defined on von Neumann algebras. Moreover, by varying the Banach spaces one can obtain several interesting results in both classical and quantum settings as well.
description: 12 pages. arXiv admin note: text overlap with arXiv:1311.0624
Low regularity local well-posedness for the zero energy Novikov-Veselov equation
Creators: name: Adams, Joseph
name: Grünrock, Axel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q53 (Primary) 35Q41 (Secondary)

description: The initial value problem $u(x,y,0)=u_0(x,y)$ for the Novikov-Veselov equation $$\partial_tu+(\partial ^3 + \overline{\partial}^3)u +3(\partial (u\overline{\partial}^{-1}\partial u)+\overline{\partial}(u\partial^{-1}\overline{\partial}u))=0$$ is investigated by the Fourier restriction norm method. Local well-posedness is shown in the nonperiodic case for $u_0 \in H^s(\mathbb{R}^2)$ with $s > - \frac{3}{4}$ and in the periodic case for data $u_0 \in H^s_0(\mathbb{T}^2)$ with mean zero, where $s > - \frac{1}{5}$. Both results rely on the structure of the nonlinearity, which becomes visible with a symmetrization argument. Additionally, for the periodic problem a bilinear Strichartz-type estimate is derived.
description: Fixed various typos caught by referees. Closed gap in proof of bilinear estimate
Latidens Thonglongya 1972
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Latidens

description: Latidens Thonglongya, 1972. J. Bombay Nat. Hist. Soc., 69:151. TYPE SPECIES: Latidens salimalii Thonglongya, 1972.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 142, DOI: 10.5281/zenodo.7353060
A Decision Model for Concept Design Evaluation for Mechanical Ventilator Machines Used During the COVID-19 Pandemic
Creators: name: Aikhuele, Daniel
Publisher: name: Faculty of Engineering Mahasasakham University
Year: 2023
Subjects: human's lung
COVID-19 virus
ventilator machine
WHO
concept design
intuitionistic fuzzy set

description: Engineering Access, 9, 1, 93-101
Performance Enhancement of Tunnel Diode by Embedding InAs Quantum Dot Layer
Creators: name: Park, K.W.
name: Kang, S.J.
name: Lee, S.K.
name: Ravindran, S.
name: Min, J.W.
name: Lee, Y.T.
Publisher: name: WIP
Year: 2015
Subjects: NEW MATERIALS AND CONCEPTS FOR SOLAR CELLS AND MODULES
New Materials and Concepts for cells

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 249-251
description: It is important that the tunnel diodes should be able to provide interconnection between the individual
unit cells of a multi-junction solar cell without causing any reduction in solar cell efficiency. By embedding quantum
dot layer having a lower band gap compared to the adjacent p- and n- layers, it is possible to increase tunneling
probability of the carriers across the junction by dividing the band-to-band tunneling step into two shorter tunneling
steps, thus enhancing the tunnel diode performance. In this work, we investigate and analyze the electrical
characteristic of a GaAs tunnel diode embedded with InAs QD layer and compare its performance with that of a
conventional GaAs tunnel diode and a GaAs tunnel diode embedded with Si delta-doped layer. The GaAs tunnel
diode embedded with InAs QD layer shows not only the highest Esaki peak tunnel current density but also the lowest
differential resistivity at zero bias. These results show the potential of the tunnel diode embedded with InAs quantum
dot layer as a suitable candidate for interconnecting the unit cells in high efficiency tandem solar cell structure by
minimizing the efficiency drop caused by the tunnel diode.
A Hybrid BWM-MCLP Method for Selecting Emergency Medical Service Locations: A Case Study in Maha Sarakham Province, Thailand
Creators: name: Lawong, Amin
Publisher: name: Faculty of Engineering Mahasasakham University
Year: 2023
Subjects: MCDM
BWM
maximal covering location problem
emergency medical service locations
ambulance bases

description: Engineering Access, 9, 1, 102-108