cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Myza sarasinorum subsp. pholidota Stresemann 1932
Creators: name: , Mary
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Meliphagidae
Myza

description: Myza sarasinorum pholidota Stresemann Myza sarasinorum pholidota Stresemann, 1932b: 106 (Tanke Salokko 2000 m). Now Myza sarasinorum pholidota Stresemann, 1932. See Salomonsen, 1967: 423, White and Bruce, 1986: 396, and Higgins et al., 2008: 632. HOLOTYPE: AMNH 300214, adult male, collected on Mount Tanke Salokko, 2000 m, Mekongga (5 Mengkoka) Mountains, 03.35S, 121.15E (USBGN, 1982a), southeast Sulawesi Island, Indonesia, on 18 December 1931, by Gerd Heinrich (no. 6080) on the Heinrich Expedition, 1931. COMMENTS: Stresemann cited Heinrich’s unique field number of the holotype in the original description and later (Stresemann, 1940: 48) noted that he had 10 male and 14 female specimens. As in the case of the above subspecies, the collection was divided between AMNH and ZMB, with types coming to AMNH. Paratypes in AMNH, all collected on Tanke Salokko in December 1931, are: AMNH 296567, AMNH 300215–300228; of these AMNH 296567 was sent in 1932 to E.D. van Oort, now in RMNH (Dekker and Quaisser, 2006: 30), and AMNH 300215 was exchanged in January 1950 to YPM.
description: Published as part of Mary, 2011, Type Specimens Of Birds In The American Museum Of Natural History Part 9. Passeriformes: Zosteropidae And Meliphagidae, pp. 1-193 in Bulletin of the American Museum of Natural History 2011 (348) on page 138
description: {"references": ["Stresemann, E. 1932 b. Vorlaufiges uber die ornithologischen Ergebnisse der Expedition Heinrich 1930 - 1932. VII. Zur Ornithologie von Sudost-Celebes. Ornithologische Monatsberichte 40: 104 - 115.", "Salomonsen, F. 1967. Family Meliphagidae. In R. A. Paynter, Jr (editor), Check-list of birds of the world, vol. 12: 338 - 450. Cambridge, MA: Museum of Comparative Zoology, ix + 495 pp.", "White, C. M. N., and M. D. Bruce. 1986. The birds of Wallacea. B. O. U. check-list no. 7. London: British Ornithologists' Union, 524 pp.", "Higgins, P. J., L. Christidis, and H. A. Ford. 2008. Meliphagidae (honeyeaters). In J. del Hoyo, A. Elliott, and D. Christie (editors), Handbook of birds of the world, vol. 13, Penduline-tits to shrikes: 498 - 691. Barcelona: Lynx Edicions, 879 pp., 60 pls., 536 photographs.", "Stresemann, E. 1940. Die Vogel von Celebes. Teil III. Systematik und Biologie. Journal fur Ornithologie 88: 1 - 135.", "Dekker, R. W. R. J., and C. Quaisser. 2006. Type specimens in the National Museum of Natural History, Leiden. Part 3. Passerines: Pachycephalidae-Corvidae (Peters's sequence). Nationaal Natuurhistorisch Museum Technical Bulletin 9: 1 - 77."]}
Overview of Temperature Coefficients of Different Thin Film Photovoltaic Technologies
Creators: name: Virtuani, A.
name: Pavanello, D.
name: Friesen, G.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Components for PV Systems
PV Modules

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 4248-4252
description: The operating temperature of a PV module or system is a crucial parameter for its energy output. PV
modules are in fact usually rated at Standard Test Conditions (STC = 1000 W/m2, AM1.5, 25°C), but their operating
temperatures are usually significantly higher. In order to have an idea of their temperature behavior- an information
which may result useful in optimizing the output of a PV system under particular conditions - in the present work we
have compared indoor measured temperature coefficients values of several thin film technologies (a-Si based single
or multi-junctions, CdTe, CIS, thin-film silicon) with typical TCO’s of a conventional c-Si wafer-based module.
With the exception of the thin film Si device (rel = -0.48 %/°C), all thin film technologies have lower values for the
rel temperature coefficient for power compared to the c-Si wafer-based module (rel = -0.45 %/°C), with the a-Si
single-junction (rel= -0.13 %/°C) device showing the less pronounced decrease with temperature, followed by CdTe
(rel= -0.21 %/°C). The microcrystalline and CIGS device investigated in this work have TCO values for power very
close (rel= -0.36 %/°C). At least for the single-junction devices, the magnitude of the power temperature coefficient
seems to be strongly correlated to the band gaps of the corresponding absorber materials. TCO values presented in
this work are in line with data coming from the literature and or from manufacturer’s datasheets. It should, however,
be noted that for a given technology a significant spread for TCO values may exist.
High Yield Recycling Process of Silicon Kerf from Diamond Wire Wafering
Creators: name: Lombardi, I.
name: Fragiacomo, G.
name: Zehetmeier, C.
name: Bye, J.-I.
name: Nielsen, Ø.
name: Rohr, C.
name: Gäumann, B.
name: Künzli, A.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Feedstock, Crystallisation and Wafering

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1256-1258
description: The possibility of recycling the silicon kerf produced during silicon wafering with diamond coated wire
represents a major advantage of this wafering technology over the slurry based one. A silicon kerf reclaiming process aimed
at the re-utilization of an internal silicon source meeting photovoltaic quality levels is presented. The silicon kerf recycling
technology is characterized by a high silicon recovery yield thanks to a patented silicon kerf collection system which
minimizes silicon losses in the refining steps and allows the on-site recycling of solid-free coolant. The regeneration of the
silicon kerf consists of several chemical etching steps able to reduce total metal contaminants to less than 3 ppm by mass,
yielding a final metal purity in the 6N range. Ongoing investigations are focused on reducing the carbon contamination
deriving from diamond particles lost from the wire. Finally, results of the densification of the refined silicon powder into
compacted bricks with a density of 1.6 gr/cm3 are presented.
Numerical Solution and Bifurcation Analysis of Nonlinear Partial Differential Equations with Extreme Learning Machines
Creators: name: Fabiani, Gianluca
name: Calabrò, Francesco
name: Russo, Lucia
name: Siettos, Constantinos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 65-XX, 65Nxx, 65-XX, 65P30

description: We address a new numerical scheme based on a class of machine learning methods, the so-called Extreme Learning Machines with both sigmoidal and radial-basis functions, for the computation of steady-state solutions and the construction of (one dimensional) bifurcation diagrams of nonlinear partial differential equations (PDEs). For our illustrations, we considered two benchmark problems, namely (a) the one-dimensional viscous Burgers with both homogeneous (Dirichlet) and non-homogeneous mixed boundary conditions, and, (b) the one and two-dimensional Liouville-Bratu-Gelfand PDEs with homogeneous Dirichlet boundary conditions. For the one-dimensional Burgers and Bratu PDEs, exact analytical solutions are available and used for comparison purposes against the numerical derived solutions. Furthermore, the numerical efficiency (in terms of accuracy and size of the grid) of the proposed numerical machine learning scheme is compared against central finite differences (FD) and Galerkin weighted-residuals finite-element methods (FEM). We show that the proposed ELM numerical method outperforms both FD and FEM methods for medium to large sized grids, while provides equivalent results with the FEM for low to medium sized grids.
Robust principal graphs for data approximation
Creators: name: Gorban, A. N.
name: Mirkes, E. M.
name: Zinovyev, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: Revealing hidden geometry and topology in noisy data sets is a challenging task. Elastic principal graph is a computationally efficient and flexible data approximator based on embedding a graph into the data space and minimizing the energy functional penalizing the deviation of graph nodes both from data points and from pluri-harmonic configuration (generalization of linearity). The structure of principal graph is learned from data by application of a topological grammar which in the simplest case leads to the construction of principal curves or trees. In order to more efficiently cope with noise and outliers, here we suggest using a trimmed data approximation term to increase the robustness of the method. The modification of the method that we suggest does not affect either computational efficiency or general convergence properties of the original elastic graph method. The trimmed elastic energy functional remains a Lyapunov function for the optimization algorithm. On several examples of complex data distributions we demonstrate how the robust principal graphs learn the global data structure and show the advantage of using the trimmed data approximation term for the construction of principal graphs and other popular data approximators.
description: A talk given at ECDA2015 (European Conference on Data Analysis, September 2nd to 4th 2015, University of Essex, Colchester, UK), to be published in Archives of Data Science
Clarifying contemporary conceptualizations of allyship with LGBTQ2S+ groups in the context of health care/health settings: a scoping review protocol
Creators: name: Handlovsky, Ingrid
name: Marcellus, Lenora
name: Zakher, Bernadette
name: Newton, Lorelei
name: Mussell, Jessica
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Medicine and Health Sciences

description: A priori protocol for a scoping review on the concept of allyship that is specific to LGBTQ2S+ groups in healthcare and health settings
Photoluminescence Scanner of the Solar Cell
Creators: name: Vanek, J.
name: Solcansky, M.
name: Vesely, A.
name: Barinka, R.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
Fundamental Studies

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 421-423
description: This paper presents an innovated method for material diagnostic using the photoluminescence induced
by focused laser beam (mapping) and detected by photomultiplier tube amplifier. The common photoluminescence
method is used for detecting material defects in substrate quite often. It requires a first-rate camera with CCD chip
and high power monochromatic source of light and high quality filters separating the luminescence light and the
source light.
Our new method with photomultiplier tube amplifier is able to detect photons emitted by tested material which are
not able to be detected by common even more high-rate CCD chip camera and for this reason we can analyze more
specific defects in silicon structure than common photoluminescence equipment.
Comparative testing of dark matter models with 15 HSB and 15 LSB galaxies
Creators: name: Kun, E.
name: Keresztes, Z.
name: Simkó, A.
name: Szűcs, G.
name: Gergely, L. Á.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We assemble a database of 15 HSB and 15 LSB galaxies, for which surface brightness density and spectroscopic rotation curve data are both available and representative for various morphologies. We use this dataset to test the Navarro-Frenk-White, the Einasto, and the pseudo-isothermal sphere dark matter (DM) models. We investigate the compatibility of the pure baryonic model and baryonic plus one of the three DM models with observations on the assembled galaxy database. When a DM component improves the fit with the spectroscopic rotational curve, we rank the models according to the goodness of fit to the datasets. We constructed the spatial luminosity density of the baryonic component based on the surface brightness profile of the galaxies. We estimated the mass-to-light (M/L) ratio of the stellar component through a previously proposed color-mass-to-light ratio relation (CMLR). We assumed an axissymetric baryonic mass model with variable axis ratios together with one of the three DM models to provide the theoretical rotational velocity curves, and we compared them with the dataset. In a second attempt, we addressed the question whether the dark component could be replaced by a pure baryonic model with fitted M/L ratios. We employed the Akaike information criterion (AIC) to establish the performance of the best-fit models. For 7 galaxies, neither model fits the dataset within the 1σ confidence level. For the other 23 cases, one of the models with DM explains the rotation curve data best. According to the AIC, the PSE emerges as most favored in 14 cases, followed by the NFW (6 cases) and the Einasto (3 cases) DM models. We find that the pure baryonic model with fitted M/L ratios falls within the 1σ confidence level for 10 HSB and 2 LSB galaxies, at the price of growing the M/Ls on average by a factor of two, but the fits are inferior compared to the best-fitting DM model.
description: 14 pages, 5 figures, 8 tables. Accepted to publish in A&A
Traffic-Aware Service Relocation in Cloud-Oriented Elastic Optical Networks
Creators: name: Goścień, Róża
Publisher: name: arXiv
Year: 2021
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In this paper, we study problem of efficient service relocation (i.e., changing assigned data center for a selected client node) in elastic optical networks (EONs) in order to increase network performance (measured by the volume of accepted traffic). To this end, we first propose novel traffic model for cloud ready transport networks. The model takes into account four flow types (i.e., city-to-city, city-to-data center, data center-to-data center and data center-to-data center) while the flow characteristics are based on real economical and geographical parameters of the cities related to network nodes. Then, we propose dedicated flow allocation algorithm that can be supported by the service relocation process. We also introduce 21 different relocation policies, which use three types of data for decision making - network topological characteristics, rejection history and traffic prediction. Eventually, we perform extensive numerical experiments in order to: (i) tune proposed optimization approaches and (ii) evaluate and compare their efficiency and select the best one. The results of the investigation prove high efficiency of the proposed policies. The propoerly designed relocation policy allowed to allocate up to 3% more traffic (compared to the allocation without that policy). The results also reveal that the most efficient relocation policy bases its decisions on two types of data simultaneously - the rejection history and traffic prediction.
Screen Printed EWT Cells: Limitations and Alternative Approaches to the Manufacturing Process
Creators: name: Haverkamp, H.
name: Scholz, S.
name: Hahn, G.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1945-1948
description: In this paper the influence of the passivation along the pn-junction of a EWT cell is discussed. It can be shown that the surface recombination velocity at the margins of the rear side emitter bordering on the surface of the cell is critical to the cell performance. A processing scheme for the EWT cell is presented using a new masking scheme to define p- and n-type regions on the rear surface. Technical challenges of the metallization process by screen printing are adressed.
Phonon anomalies in some iron-telluride materials
Creators: name: Homes, C. C.
name: Dai, Y. M.
name: Schneeloch, J.
name: Zhong, R. D.
name: Gu, G. D.
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 detailed temperature dependence of the infrared-active mode in Fe$_{1.03}$Te ($T_N\simeq 68$ K) and Fe$_{1.13}$Te ($T_N\simeq 56$ K) has been examined, and the position, width, strength, and asymmetry parameter determined using an asymmetric Fano profile superimposed on an electronic background. In both materials the frequency of the mode increases as the temperature is reduced; however, there is also a slight asymmetry in the line shape, indicating that the mode is coupled to either spin or charge excitations. Below $T_N$ there is an anomalous decrease in frequency and the mode shows little temperature dependence, at the same time becoming more symmetric, suggesting a reduction in spin- or electron-phonon coupling. The frequency of the infrared-active mode and the magnitude of the shift below $T_N$ are predicted reasonably well by first-principles calculations; however, the predicted splitting of the mode is not observed. In superconducting FeTe$_{0.55}$Se$_{0.45}$ ($T_c\simeq 14$ K) the infrared-active $E_u$ mode displays asymmetric line shape at all temperatures, which is most pronounced between 100 - 200 K, indicating the presence of either spin- or electron-phonon coupling, which may be a necessary prerequisite for superconductivity in this class of materials.
description: 9 pages, 5 figures and 3 tables, one page of supplemental information. Updated to reflect the published version
Spectral Down-Conversion in Sm-Doped Borate Glasses for Photovoltaic Applications
Creators: name: Dyrba, M.
name: Miclea, P.-T.
name: Schweizer, S.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
Fundamental Studies

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 375-377
description: Samarium-doped borate glasses containing different types and concentrations of network modifiers are
investigated as down-converting top glass for silicon solar cells. Optical and structural properties of the glasses are
investigated by Fourier transform infrared spectroscopy, optical absorption and fluorescence spectroscopy. The outstanding
characteristics are high optical transparency, robustness and price. Upon excitation above the ultraviolet
(UV) absorption edge, borate glasses show a broad and intense fluorescence in the UV and blue spectral range. It is
shown that borate glasses are good candidates as a matrix material for fluorescent ions like samarium.
Tuning quantum measurements to control chaos
Creators: name: Eastman, Jessica K.
name: Hope, Joseph J.
name: Carvalho, André R. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Environment-induced decoherence has long been recognised as being of crucial importance in the study of chaos in quantum systems. In particular, the exact form and strength of the system-environment interaction play a major role in the quantum-to-classical transition of chaotic systems. In this work we focus on the effect of varying monitoring strategies, i.e. for a given decoherence model and a fixed environmental coupling, there is still freedom on how to monitor a quantum system. We show here that there is a region between the deep quantum regime and the classical limit where the choice of the monitoring parameter allows one to control the complex behaviour of the system, leading to either the emergence or suppression of chaos. Our work shows that this is a result from the interplay between quantum interference effects induced by the nonlinear dynamics and the effectiveness of the decoherence for different measurement schemes.
description: Updated to published version (11 pages, 7 figures)
Integrated Factory for c-Si Cell and Module Manufacturing: the Sustainable Way to Make PV
Creators: name: Ragni, A.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Manufacturing Issues

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1109-1112
description: Harmful/toxic wastes and a huge consumption of water are the weak points of an industry that have the
ambition to solve the environmental problems worldwide in energy production. The c-Si Cells manufacturing is one
step of the PV value chain – technology that has a relevant slice on the of the environmental impact’s cake. The
purposes of this work is to illustrate how the sustainable concept in Fab designs has been implemented at Helios
Technology, and to share the results and the good “side effects” of the process itself.
Classification of topological phases in periodically driven interacting systems
Creators: name: Else, Dominic V.
name: Nayak, Chetan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider topological phases in periodically driven (Floquet) systems exhibiting many-body localization, protected by a symmetry $G$. We argue for a general correspondence between such phases and topological phases of undriven systems protected by symmetry $\mathbb{Z} \rtimes G$, where the additional $\mathbb{Z}$ accounts for the discrete time translation symmetry. Thus, for example, the bosonic phases in $d$ spatial dimensions without intrinsic topological order (SPT phases) are classified by the cohomology group $H^{d+1}(\mathbb{Z} \rtimes G, \mathrm{U}(1))$. For unitary symmetries, we interpret the additional resulting Floquet phases in terms of the lower-dimensional SPT phases that are pumped to the boundary during one time step. These results also imply the existence of novel symmetry-enriched topological (SET) orders protected solely by the periodicity of the drive.
description: 3 pages + appendices, comments welcome. v3: final published version, with some arguments explained in more depth. v2: updated abstract, added reference
Fundamental Limits of Optical Force and Torque
Creators: name: Rahimzadegan, Aso
name: Alaee, Rasoul
name: Fernandez-Corbaton, Ivan
name: Rockstuhl, Carsten
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Optical force and torque provide unprecedented control on the spatial motion of small particles. A valid scientific question, that has many practical implications, concerns the existence of fundamental upper bounds for the achievable force and torque exerted by a plane wave illumination with a given intensity. Here, while studying isotropic particles, we show that different light-matter interaction channels contribute to the exerted force and torque; and analytically derive upper bounds for each of the contributions. Specific examples for particles that achieve those upper bounds are provided. We study how and to which extent different contributions can add up to result in the maximum optical force and torque. Our insights are important for applications ranging from molecular sorting, particle manipulation, nanorobotics up to ambitious projects such as laser-propelled spaceships.
description: 5 pages, 5 figures, 2 tables, Supplemental Material (27 pages, 6 figures)
A Spectral Moore Bound for Bipartite Semiregular Graphs
Creators: name: Lato, Sabrina
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Let $b(k,\ell,θ)$ be the maximum number of vertices of valency $k$ in a $(k,\ell)$-semiregular bipartite graph with second largest eigenvalue $θ$. We obtain an upper bound for $b(k,\ell,θ)$ for $0 < θ< \sqrt{k-1} + \sqrt{\ell-1}$. This bound is tight when there exists a distance-biregular graph with particular parameters, and we develop the necessary properties of distance-biregular graphs to prove this.
description: 25 pages
Protótipo de dispositivo vestível utilizando sensor inercial para detecção e visualização em tempo real de tremor de repouso de pessoas com a doença de Parkinson
Creators: name: Figueira Nozella, Mila
Publisher: name: Zenodo
Year: 2023
Subjects: Dispositivo Vestível
Doença de Parkinson
Internet das Coisas
Sensor Inercial

description: A doença de Parkinson (DP) é uma doença neurodegenerativa que acomete a região conhecida como substância negra. Seus principais sintomas cardinais são tremores, rigidez, bradicinesia e instabilidade postural. Esta é uma doença que acomete principalmente a população idosa e atinge mais de 6,1 milhões de pessoas no mundo. Não existe um tratamento atualmente capaz de reverter o quadro de degeneração neuronal, sendo assim é necessário acompanhar a evolução da doença e eficácia dos tratamentos aplicados. Os principais métodos para avaliar a doença de Parkinson baseiam-se em escalas subjetivas, portanto há diversas aplicações que utilizam sensores, principalmente os inerciais, e podem ser atrelados a outros recursos, como aprendizado de máquina ou eletromiografia, para coletar e classificar informações de forma objetiva. Novas tecnologias voltadas à telemedicina têm sido possíveis graças, entre outros fatores, ao aumento da capacidade computacional, barateamento e evolução de sensores e expansão de ambientes cloud voltados a aplicações IoT. Considerando a tendência de evolução da telemedicina, o presente trabalho propõe um protótipo de dispositivo vestível para monitorar eventos de tremor de repouso em indivíduos com a doença de Parkinson utilizando um sensor inercial com envio dos dados em tempo real, de forma segura e gerenciada, para um ambiente cloud utilizando o protocolo de comunicação MQTT, disponibilizando as informações de forma gráfica utilizando um Dashboard.
Polysilicon Deposition by Trichlorosilane Decomposition
Creators: name: Del Coso, G.
name: Sánchez, M.T.
name: González, M.
name: Zamorano, J.C.
name: Del Cañizo, C.
name: Luque, A.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Feedstock, Crystallisation and Wafering

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1211-1214
description: Polysilicon is the raw material for crystalline Si (c-Si) solar cells and for that reason the photovoltaic
(PV) community is working on the minimisation of the energy consumed in the production process, and on the
reduction of its fabrication cost. The polysilicon production processes can be classified in two groups: the chemical
routes, with greater polysilicon quality but greater production cost, and the metallurgical route, with, so far, lower
polysilicon quality but lower production cost. This work deals with the determination of the optimal operating
conditions for the chemical route based on trichlorosilane (TCS), i.e, the polysilicon deposition by TCS
decomposition. To reduce the energy consumption of the process forces to carry out experiments or simulations,
determining the influence of different input conditions of the process on, for instance, the polysilicon productivity
(kg h-1) , the energy consumption (kWh kg-1), or the TCS conversion. The procedure for the statistical design of
experiments to analyze these influences is described in this paper. These experiments show which input variables
have greater impacts on the process and allow to estimate their effect on the process.
Lipid membrane-mediated attractions between curvature inducing objects
Creators: name: van der Wel, Casper
name: Vahid, Afshin
name: Šarić, Anđela
name: Idema, Timon
name: Heinrich, Doris
name: Kraft, Daniela J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: The interplay of membrane proteins is vital for many biological processes, such as cellular transport, cell division, and signal transduction between nerve cells. Theoretical considerations have led to the idea that the membrane itself mediates protein self-organization in these processes through minimization of membrane curvature energy. Here, we present a combined experimental and numerical study in which we quantify these interactions directly for the first time. In our experimental model system we control the deformation of a lipid membrane by adhering colloidal particles. Using confocal microscopy, we establish that these membrane deformations cause an attractive interaction force leading to reversible binding. The attraction extends over 2.5 times the particle diameter and has a strength of three times the thermal energy (-3.3 kT). Coarse-grained Monte-Carlo simulations of the system are in excellent agreement with the experimental results and prove that the measured interaction is independent of length scale. Our combined experimental and numerical results reveal membrane curvature as a common physical origin for interactions between any membrane-deforming objects, from nanometre-sized proteins to micrometre-sized particles.
description: 15 pages, 12 figures, Published in Scientific Reports (open access): http://www.nature.com/articles/srep32825 Supplementary Material available via the given URL
Defect Transformation in Intentionally Contaminated FZ Silicon During Low Temperature Annealing
Creators: name: Habenicht, H.
name: Gundel, P.
name: Mchedlidze, T.
name: Kittler, M.
name: Coletti, G.
name: Warta, W.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1933-1937
description: Silicon samples intentionally contaminated with iron during growth were investigated in the as-grown state and after a prolonged low temperature anneal at around 300°C with different characterisation techniques, i.e. Deep Level Transient Spectroscopy (DLTS), Temperature Dependent Lifetime Spectroscopy (TLDS) and Photoluminescence (PL) spectroscopy. A defect transformation was found, changing the type of defect from iron-related complexes to interstitial iron.
Control of Microstructures and Crystal Defects in Si Multicrystals Grown by the Casting Method - How to Improve the Quality of Multicrystals to the Level of Single Crystals -
Creators: name: Nakajima, K.
name: Usami, N.
name: Fujiwara, K.
name: Kutsukake, K.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Feedstock, Crystallisation and Wafering

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1219-1221
description: We have proposed the dendritic casting method to include dendritic nucleation at the bottom of the
crucible and subsequent directional solidification in order to obtain high-quality Si multicrystals with controlled
orientation and large grain sizes. We applied the method to obtain Si multicrystals with a diameter of 15 cm. The
conversion efficiency of 18.2% was obtained using a Si wafer with 10 cm x 10 cm. It is in the highest word record
group for the large scale solar cells, and it is comparable with the conversion efficiency of solar cells prepared by Si
single crystals using the same process. Furthermore, high efficiency solar cells were obtained from more than 70-
80% of the Si ingot to show that high-quality Si multicrystals can be obtained by high yield. Fewer random grain
boundaries and improved coherency of grain boundaries owing to dendritic nucleation are effective to suppress
generation of sub-grain boundaries during directional solidification, which could explain improvement of crystal
quality.
Particle production in high-energy collisions beyond the shockwave limit
Creators: name: Altinoluk, Tolga
name: Dumitru, Adrian
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We compute next to eikonal (NE) and next to next to eikonal (NNE) corrections to the Lipatov vertex due to a finite target thickness. These arise from electric field insertions into the eikonal Wilson lines. We then derive a $k_T$-factorization formula for single inclusive gluon production at NNE accuracy and find that nuclear effects are absent. We also analyze NNE corrections to two-gluon production where some of the contributions are found to exhibit corrections proportional to $A^{2/3}$.
description: 11 pages, 5 figures, corrected the result for the vertex, added derivation of two-gluon production cross section, published version
Investigations into Selective Removal of Silicon Nitride Using Laser for Crystalline Silicon Solar Cells
Creators: name: Rana, V.
name: Zhang, Z.
name: Lazik, C.
name: Mishra, R.
name: Weidman, T.
name: Eberspacher, C.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1942-1944
description: An understanding of the selective ablation of dielectrics is crucial for successful application of laser ablation technique to the front and back metallization process flows. We present our results on the selective ablation of silicon nitride using nanosecond and picosecond laser pulses. By optimizing the process condition for picosecond-pulse ablation the deleterious effects on the substrate are avoided.
Sampling on NISQ Devices: "Who's the Fairest One of All?"
Creators: name: Pelofske, Elijah
name: Golden, John
name: Bärtschi, Andreas
name: O'Malley, Daniel
name: Eidenbenz, Stephan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Modern NISQ devices are subject to a variety of biases and sources of noise that degrade the solution quality of computations carried out on these devices. A natural question that arises in the NISQ era, is how fairly do these devices sample ground state solutions. To this end, we run five fair sampling problems (each with at least three ground state solutions) that are based both on quantum annealing and on the Grover Mixer-QAOA algorithm for gate-based NISQ hardware. In particular, we use seven IBM~Q devices, the Aspen-9 Rigetti device, the IonQ device, and three D-Wave quantum annealers. For each of the fair sampling problems, we measure the ground state probability, the relative fairness of the frequency of each ground state solution with respect to the other ground state solutions, and the aggregate error as given by each hardware provider. Overall, our results show that NISQ devices do not achieve fair sampling yet. We also observe differences in the software stack with a particular focus on compilation techniques that illustrate what work will still need to be done to achieve a seamless integration of frontend (i.e. quantum circuit description) and backend compilation.
description: 11 pages
Modified $f(R)$ Gravity and Thermodynamics of Time-Dependent Wormholes at Event Horizon
Creators: name: Saiedi, H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the context of modified $f(R)$ gravity theory, we study time-dependent wormhole spacetimes in the radiation background. In this framework, we attempt to generalize the thermodynamic properties of time-dependent wormholes in $f(R)$ gravity. Finally, at event horizon, the rate of change of total entropy has been discussed.
description: arXiv admin note: text overlap with arXiv:1011.5703 by other authors
Spatially Resolved Determination of Trapping Parameters in P-Doped Silicon by Microwave Detected Photoconductivity
Creators: name: Schüler, N.
name: Hahn, T.
name: Dornich, K.
name: Niklas, J.R.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
Fundamental Studies

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 343-346
description: The novel method MDP (microwave detected photoconductivity) was applied to measure the injection
dependent lifetime and photoconductivity. With these measurements and an evaluation algorithm based on the trapping
model of Hornbeck and Haynes [1] a spatially resolved determination of trapping parameters in mc- and Cz-Si
samples is possible. The possibility to map trapping parameters with a high resolution is investigated. First measurement
results are presented for mc-Si and Cz-Si samples.
Erfahrungsmanagement mit fallbasierten Assistenzsystemen
Creators: name: Minor, Mirjam
Publisher: name: Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II
Year: 2006
Subjects: subject: Fallbasiertes Schließen
subject: Wissensmanagement
subject: Agentenorientierte Programmierung
subject: Soziotechnische Systeme
subject: case-based reasoning
subject: knowledge management
subject: agents
subject: socio-technical systems
subject: 004 Informatik
subject: 28 Informatik, Datenverarbeitung

description: Erfahrungsmanagement (EM) ist eine Spezialform des Wissensmanagements, die sich mit aufgabenbezogenem Wissen beschäftigt. Diese Arbeit entwickelt ein Rahmenwerk für Assistenzsysteme, die Menschen bei EM-Aufgaben unterstützen. Es untersucht nicht nur technische Fragen (Erfahrungswissen sammeln, strukturieren, speichern und wiederverwenden) sondern auch organisatorische (Erfahrungswissen evaluieren und pflegen) und psychosoziale Aspekte (ein EM-System integrieren, Barrieren vermeiden, den Systemeinsatz bewerten). Fallbasierte Anwendungsbeispiele für industrielle und experimentelle Szenarien zeigen, welche Prozesse wo unterstützt oder gar teilautomatisiert werden können. Sie dienen der experimentellen Evaluierug der Fragen, die ich zu Beginn jedes Anwendungskapitels formuliert habe.
description: Experience Management (EM) is a special form of Knowledge Management that deals with task-based knowledge. This thesis provides a framework for assistant systems that support human beings in EM tasks. It deals not only with technical issues (how to collect, structure, store, retrieve, and reuse experiential knowledge), but als with organizational issues (how to evaluate and maintain it) and psychosocial questions (how to integrate an EM system, how to avoid barriers, how to evaluate the success of the whole system). Case-based sample applications from both, industrial and experimental scenarios, show to what extend the particular EM processes can be supported or which sub-processes can even be automated. By means of experiments with these implemented samples, we evaluate the topics that are discussed at the beginning of each application chapter.
Oxidation-Induced Inversion Layer in Compensated p-Type Silicon
Creators: name: Rougieux, F.
name: Macdonald, D.
name: McIntosh, K.R.
name: Cuevas, A.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1086-1089
description: We report on the formation of a p-n junction at the surface of compensated p-type silicon wafers,
caused by dopant segregation during thermal oxidation. Experimental evidence of the junction is obtained by hot
probe measurements (surface conductivity type) and secondary ion mass spectroscopy measurements (dopant density
profile). We also demonstrate the impact of the junction on the characterization of metal-oxide-semiconductor
structures with capacitance-voltage measurements.
Quasi Monte Carlo integration and kernel-based function approximation on Grassmannians
Creators: name: Breger, Anna
name: Ehler, Martin
name: Graef, Manuel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Numerical integration and function approximation on compact Riemannian manifolds based on eigenfunctions of the Laplace-Beltrami operator have been widely studied in the recent literature. The standard example in numerical experiments is the Euclidean sphere. Here, we derive numerically feasible expressions for the approximation schemes on the Grassmannian manifold, and we present the associated numerical experiments on the Grassmannian. Indeed, our experiments illustrate and match the corresponding theoretical results in the literature.
Photovoltaic Power Estimation Tool Using a Solar Radiation Numerical Model
Creators: name: Díaz, F.
name: Montero, G.
name: Escobar, J.M.
name: Rodríguez, E.
name: Montenegro, R.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
Fundamental Studies

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 325-328
description: A tool based on a solar radiation numerical model for the evaluation of the suitability of different
possible locations for photovoltaic power stations is presented. It allows the user to estimate the solar radiation in a
given place as well as the photovoltaic power generation, and compare the results with those obtained for other
locations. The solar radiation model is implemented taking into account the terrain surface with the use of 2-D
adaptive meshes of triangles, which are made using a refinement/derefinement procedure according to the variations
of terrain surface, orography and albedo. To find the optimal location for obtaining the maximum power generation,
the effect of shadows is considered. The solar radiation is first computed for clear-sky conditions, considering the
different components of radiation. The real-sky radiation is computed daily starting from the results of clear-sky
radiation. The maps of clear-sky index are obtained from a spatial interpolation of observational data that are
available for each day at several points of the zone under consideration. Finally, the solar radiation maps of a month
are calculated from the daily results. Taking into account the photovoltaic cell model, the electric power generation
can be deduced from the obtained radiation data.
"IWT" - Integrated Wastewater Treatment S.A.I.T.A. srl
Creators: name: Castelli, G.
name: Martini, F.
name: Martini, C.E.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Manufacturing Issues

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1098-1100
description: Water in these days is gaining more and more relevance as a fundamental resource in industry.
Like other industrial application also the solar cells production is affected by issues connected to the consumption of water
especially in the manufacturing process of the silicon solar cells. In this paper we present a patented process that solve the
environment issues that affects the silicon solar cells manufacturing, a zero discharge waste water treatment, that recycles
the 97% of the water used to run the manufacturing process of multi and mono silicon cells.
The IWT system, Integrated Waste Water Treatment, is a process that produces Ultra Pure Water for the production line.
That water, during the manufacturing process is polluted by: chemicals, silicates, ammonia and nitrates etc.
The IWT system re-establishes the initial volumes and condition of the water, removing all the contaminants, that are
expelled from the circuit as solid sludge and crystallized salts.
On phenomenological parametrizations for the luminosity distance of gravitational waves
Creators: name: Lizardo, Andrés
name: Chagoya, Javier
name: Ortiz, C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The propagation of gravitational waves offers new possibilities for testing the theory of gravity. Amongst these possibilities there is the luminosity distance of gravitational waves, $d_{gw}$. It has been proposed to study this property by means of phenomenological parametrizations, which in this work we confront to the actual predictions of Einstein-scalar-Gauss-Bonnet gravity, finding that the simplest parametrization performs better. We propose a novel parametrization that covers a wider range of models, in particular, within degenerate higher order scalar-tensor theories of gravity. Also, regarding model selection from best-fit parameters, we find that even quantities derived from $d_{gw}$ can lead to inconsistent model selection if they are treated independently. This highlights that it is essential to perform simultaneous analysis and include other types of data. We expect our findings to be relevant for future constraints on modified gravity based on the properties of standard sirens.
description: 19 pages, 3 figures
Two-Diode Model Revisited: Parameters Extraction from Semi-Log Plots of I-V Data
Creators: name: Yordanov, G.H.
name: Midtgård, O.-M.
name: Sætre, T.O.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Components for PV Systems
PV Modules

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 4156-4163
description: This paper presents an improved method to extract physically meaningful parameters from outdoor I-V
data of polycrystalline-Si PV modules. The two-diode model of a PV cell is adapted for modules. A novel algorithm is
devised to estimate the series resistance from I-V data sets. The ideality factor and the reverse saturation current of the
diffusion diodes are then calculated from partially linear semi-logarithmic plots. The complexity and ambiguity typical
for non-linear curve fitting are thus avoided. The method is applied to outdoor I-V curves from polycrystalline-Si
modules, and preliminary results are presented. A new definition of the local ideality factor is introduced. It compensates
for the series-resistance effect at higher voltages, such that a constant ideality factor is obtained for polycrystalline-Si
modules in this range of voltages.