cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Existence of Heterodimensional Cycles near Shilnikov Loops in Systems with a $\mathbb{Z}_2$ Symmetry
Creators: name: Li, Dongchen
name: Turaev, Dmitry V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37G20, 37G25, 37G35

description: We prove that a pair of heterodimensional cycles can be born at the bifurcations of a pair of Shilnikov loops (homoclinic loops to a saddle-focus equilibrium) having a one-dimensional unstable manifold in a volume-hyperbolic flow with a $\mathbb{Z}_2$ symmetry. We also show that these heterodimensional cycles can belong to a chain-transitive attractor of the system along with persistent homoclinic tangency.
description: 43 pages, 4 figures
Trustworthy Artificial Intelligence
Creators: name: Becker, Maximilian
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2022

description: Trust or trustworthiness are hard to define. There are many aspects that can increase or decrease the trust in an Artificial Intelligence systems. This is why entities such as the High-level expert group on AI (HLEG) and the European commission’s artificial intelligence act are putting forward guidelines and regulations demand trustworthiness and help to better define it. One aspect that can increase the trust in a system is to make the system more transparent. For AI systems this can be achieved through Explainable AI or XAI which has the goal to explain learning systems. This article will list some requirements from the HLEG and the European artificial intelligence act and will go further into transparency and how it can be achieved through explanations. At the end we will cover personalized explanations, how they could be achieved and how they could benefit users.
Silicon Slicing with Diamond Wire for Commercial Production of PV Wafers
Creators: name: Bye, J.-I.
name: Jensen, S.A.
name: Aalen, F.
name: Rohr, C.
name: Nielsen, Ø.
name: Gäumann, B.
name: Hodsden, J.
name: Lindemann, 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; 1269-1272
description: Today’s industrial standard technique for wafering substrates for photovoltaic processing typically involves
the use of steel wire and a slurry mixture. This process is reaching its limitation in achieving further cost reductions. New
silicon wafering technology using diamond coated wires has been developed for commercial production and is presented
in this paper. The new process improves the sawing efficiency substantially and therefore increases productivity by a
factor of two or more in terms of table feed speed. The wire lifetime is increased substantially due to this fixed abrasive
sawing process and using appropriate sawing parameters, therefore reducing the overall wafering cost potentially
significantly. We demonstrate the advantages of using diamond wire sawing in a manufacturing environment resulting in
increased productivity while at the same time producing wafers with excellent quality, similar or better than slurry cut
reference wafers, e.g. showing very low surface metal contamination and total thickness variation of less than 10 μm.
This was demonstrated both for cutting in a reciprocating mode and in a single direction with long lengths of diamond
wire.
The Shapes of Things to Come: Probability Density Quantiles
Creators: name: Staudte, Robert G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: For every discrete or continuous location-scale family having a square-integrable density, there is a unique continuous probability distribution on the unit interval that is determined by the density-quantile composition introduced by Parzen in 1979. These probability density quantiles (pdQs) only differ in shape, and can be usefully compared with the Hellinger distance or Kullback-Leibler divergences. Convergent empirical estimates of these pdQs are provided, which leads to a robust global fitting procedure of shape families to data. Asymmetry can be measured in terms of distance or divergence of pdQs from the symmetric class. Further, a precise classification of shapes by tail behavior can be defined simply in terms of pdQ boundary derivatives.
description: 21 pages, 8 figures, 8 tables
Melidectes torquatus subsp. mixtus Rand 1941
Creators: name: , Mary
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Meliphagidae
Melidectes

description: Melidectes torquatus mixtus Rand Melidectes torquatus mixtus Rand, 1941: 14 (Balim River, 1600 meters, Netherland [sic] New Guinea). Now Melidectes torquatus mixtus Rand, 1941. See Salomonsen, 1967: 419, and Dickinson, 2003: 438. HOLOTYPE: AMNH 306378, adult male, collected on the Baliem (5 Balim) River, 1600 m, 04.25S, 138.59E (USBGN, 1982a), Papua Province (5 Netherlands New Guinea), Indonesia, on 12 December 1938, by Richard Archbold, Austin L. Rand, and W.B. Richardson on the 1938–1939 Archbold Expedition to New Guinea (no. 8613). COMMENTS: Rand cited the AMNH number of the holotype in the original description and gave measurements of six males and three females, all specimens from the Baliem River area between 1600 and 2200 m. The eight paratypes are: Baliem River, 1600 m, AMNH 342780–342784, males; AMNH 342785, 342786, females; Ibele (5 Bele) River, 18 km north of Lake Habbema, 2200 m, AMNH 342787, female. AMNH 342785 was sent to MZB in May 1957. This was a joint expedition with the Netherlands Indies Government, also known as the Indisch-Amerikaansche Expeditie. For a summary of the expedition, see Archbold et al. (1942).
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 135
description: {"references": ["Rand, A. L. 1941. Results of the Archbold Expeditions. No. 32. New and interesting birds from New Guinea. American Museum Novitates 1102: 1 - 15.", "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.", "Dickinson, E. C. (editor). 2003. The Howard and Moore complete checklist of the birds of the world. 3 rd ed. London: Christopher Helm, 1039 pp.", "Archbold, R., A. L. Rand, and L. J. Brass. 1942. Results of the Archbold Expeditions. No. 41. Summary of the 1938 - 1939 New Guinea Expedition. Bulletin of the American Museum of Natural History 79 (3): 199 - 288, 35 pls., 3 maps."]}
Extensible Structure-Informed Prediction of Formation Energy with Improved Accuracy and Usability employing Neural Networks
Creators: name: Krajewski, Adam M.
name: Siegel, Jonathan W.
name: Xu, Jinchao
name: Liu, Zi-Kui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In the present paper, we introduce a new neural network-based tool for the prediction of formation energies of atomic structures based on elemental and structural features of Voronoi-tessellated materials. We provide a concise overview of the connection between the machine learning and the true material-property relationship, how to improve the generalization accuracy by reducing overfitting, how new data can be incorporated into the model to tune it to a specific material system, and preliminary results on using models to preform local structure relaxations. The present work resulted in three final models optimized for (1) highest test accuracy on the Open Quantum Materials Database (OQMD), (2) performance in the discovery of new materials, and (3) performance at a low computational cost. On a test set of 21,800 compounds randomly selected from OQMD, they achieve a mean absolute error (MAE) of 28, 40, and 42 meV/atom, respectively. The second model provides better predictions in a test case of interest not present in the OQMD, while the third reduces the computational cost by a factor of 8. We collect our results in a new open-source tool called SIPFENN (Structure-Informed Prediction of Formation Energy using Neural Networks). SIPFENN not only improves the accuracy beyond existing models but also ships in a ready-to-use form with pre-trained neural networks and a GUI interface. By virtue of this, it can be included in DFT calculations routines at nearly no cost.
Supplementary document for A Point-of-care real-time DNA Detection Device (D3) of SARS-CoV-2 from clinical samples - 6203587.pdf
Creators: name: Presti, Damian
name: Bergier, Julian
name: Ripoll, Lucas
name: Borio, Cristina
name: Torchia, Gustavo
name: Bilen, Marcos
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplemental TeX archive and document
Kruskal-Penrose Formalism for Lightlike Thin-Shell Wormholes
Creators: name: Guendelman, Eduardo
name: Nissimov, Emil
name: Pacheva, Svetlana
name: Stoilov, Michail
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The original formulation of the "Einstein-Rosen bridge" in the classic paper of Einstein and Rosen (1935) is historically the first example of a static spherically-symmetric wormhole solution. It is not equivalent to the concept of the dynamical and non-traversable Schwarzschild wormhole, also called "Einstein-Rosen bridge" in modern textbooks on general relativity. In previous papers of ours we have provided a mathematically correct treatment of the original "Einstein-Rosen bridge" as a traversable wormhole by showing that it requires the presence of a special kind of "exotic matter" located on the wormhole throat - a lightlike brane (the latter was overlooked in the original 1935 paper). In the present note we continue our thorough study of the original "Einstein-Rosen bridge" as a simplest example of a lightlike thin-shell wormhole by explicitly deriving its description in terms of the Kruskal-Penrose formalism for maximal analytic extension of the underlying wormhole spacetime manifold. Further, we generalize the Kruskal-Penrose description to the case of more complicated lightlike thin-shell wormholes with two throats exhibiting a remarkable property of QCD-like charge confinement.
description: 14 pages, few typos corrected, version to be appear in "Springer Proceedings in Mathematics and Statistics", vol.191, ed. V. Dobrev, Springer (2016)
Long Term Degradation and Annealing Patterns of Amorphous Silicon Solar Modules at the Work Site in a Warm Climate
Creators: name: Luczak, K.
name: Grzesiak, W.
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; 4276-4278
description: We have investigated the effects of light induced degradation of amorphous silicon triple junction
modules after careful observation of efficiency changes in the outdoor environment in all seasons of the year in a
warm Mediterranean climate over several years. The degradation was performed in a manner which allowed
subsequent later regeneration of degraded efficiency of the modules in lower temperatures than the standard
temperature of light induced degradation reversal. Initially, the regeneration was performed in laboratory conditions,
and thereafter also in the field where the modules were originally degraded. Careful observations of frequent
degradation lead us to interesting results which allow the formulation of specific patterns of long lasting degradation
characteristics. These patterns of degradation have an important influence on regeneration capabilities, their
effectiveness and difficulties which need to be addressed. Some of the observed patterns are specific for the climate
conditions where this testing occurred and also most probably for this particular type of module. Particular patterns
of degradation in the field are strongly dependent on the season of the year and limit the possibilities of regeneration
most notably during summer time. Regeneration was more energy consuming during winter time as self annealing is
not effective. There was no long term component of degradation observed for the modules investigated, as has been
previously reported for degradation in cold climate conditions.
A computable branching random walk for the many-body Wigner quantum dynamics
Creators: name: Shao, Sihong
name: Xiong, Yunfeng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Numerical Analysis (math.NA)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A branching random walk algorithm for the many-body Wigner equation and its numerical applications for quantum dynamics in phase space are proposed and analyzed. After introducing an auxiliary function, the (truncated) Wigner equation is cast into the integral formulation as well as its adjoint correspondence, both of which can be reformulated into the renewal-type equations and have transparent probabilistic interpretation. We prove that the first moment of a branching random walk happens to be the solution for the adjoint equation. More importantly, we detail that such stochastic model, associated with both importance sampling and resampling, paves the way for a numerically tractable scheme, within which the Wigner quantum dynamics is simulated in a time-marching manner and the complexity can be controlled with the help of an (exact) estimator of the growth rate of particle number. Typical numerical experiments on the Gaussian barrier scattering and a Helium-like system validate our theoretical findings, as well as demonstrate the accuracy, the efficiency and thus the computability of the Wigner branching random walk algorithm.
description: 49 pages, 50 figures. Submitted for publication on June 20, 2016
New Method for Grain Size Characterization of a Multi-Crystalline Silicon Ingot
Creators: name: Forster, M.
name: Fourmond, E.
name: Lebrun, J.M.
name: Einhaus, R.
name: Kraiem, J.
name: Lemiti, M.
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; 1286-1289
description: In order to estimate the quality of the crystallisation process of multi-crystalline Silicon ingots, we have
developed a new optical method for the determination of grain sizes on as-cut wafers that were taken from different
height positions of the ingot. This fast method is based on image analysis and allows in a simple way to get numerical
data which represent the crystallographic quality of silicon wafers. The obtained data were used to calculate a grain
size distribution over the analysed wafer area as well as an average grain size by using two different algorithms. It
was thus possible to represent the average grain size as a function of ingot height, which indicates ingot regions of
lower crystalline quality, for example regions of equiaxed growth of very small grains (“grit”). This technique was
used for the characterisation of different multi-crystalline Silicon ingots, using Silicon feedstock of different quality
(electronic, upgraded metallurgical or solar grade), and also to monitor the impact of modifications of the crystallisation
process parameters on the grain sizes distribution. It was found that this method is able to give a first qualitative
impression of the multi-crystalline ingots and wafers which in the end are used to produce solar cells.
Preparation Methods and Survey of Optical Measurements of Slurry Abrasives
Creators: name: Lawerenz, A.
name: Grün, A.
name: Porytskyy, R.
name: Anspach, O.
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; 1290-1295
description: For the measurements of size and circularity distributions of sawing slurries with microscopy (where
the slurry is diluted in a liquid) we investigated the time dependent and concentration dependent agglomeration
behaviour of slurry particles. We developed a preparation method that avoids the agglomeration of particles before
and during the measurement. Because laser diffraction is one of the most widespread methods which are used to
characterise the size distributions of slurry particles we compared the measurement results of different laser
diffractometers. For characterising slurries we suggest a couple of measurement categories one of which is the ratio of
half width to the modal value, which describes the narrowness of silicon carbide particles. Light microscopy is able to
measure both size and circularity distributions of slurry grains. Because this method fails to measure small slurry
particles we started to develop a new method that overcomes the resolution limitation of light microscopy by
combining scanning electron microscopy and pattern recognition. Results are presented concerning an adapted
preparation of the slurry.
Crystalline Si Solar Cells from Compensated Material: Behaviour of Light Induced Degradation
Creators: name: Kopecek, R.
name: Arumughan, J.
name: Peter, K.
name: Good, E.A.
name: Libal, J.
name: Acciarri, M.
name: Binetti, S.
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; 1855-1858
description: In this paper we focus on the detailed investigation of light induced degradation behaviour of cells from so called Solar Grade silicon (SoG-Si) material. Different types of materials were studied at various compensation levels. Large area industrial solar cells without surface texture with high efficiencies on mc-Si (>15%) as well as Cz-Si (>16%) substrates were fabricated and exposed to long time illumination at 1 sun. We observed that on one hand the light induced degradation (LID) was comparable to reference substrates and on the other not
dependent on the absolute but on the net boron content only. One possible explanation for this unforeseen finding is that the phosphorus atoms in the SoG-Si material interact with boron centers reducing the recombination activity of
e.g. B-O complexes.
Isomonodromic tau functions on a torus as Fredholm determinants, and charged partitions
Creators: name: Del Monte, Fabrizio
name: Desiraju, Harini
name: Gavrylenko, Pavlo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Combinatorics (math.CO)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We prove that the isomonodromic tau function on a torus with Fuchsian singularities and generic monodromies in $GL(N,\mathbb{C})$ can be written in terms of a Fredholm determinant of Cauchy-Plemelj operators. We further show that the minor expansion of this Fredholm determinant is described by a series labeled by charged partitions. As an example, we show that in the case of $SL(2,\mathbb{C})$ this combinatorial expression takes the form of a dual Nekrasov-Okounkov partition function, or equivalently of a free fermion conformal block on the torus. Based on these results, we also propose a definition of the tau function of the Riemann-Hilbert problem on a torus with generic jump on the A-cycle.
description: 56 pages, 11 figures
Tentatives théocratiques en Ecosse et édification de la communauté-ecclesia dans la première moitié du dix-septième siècle
Creators: name: Kaczmarek, Claire
Publisher: name: European journal of theology
Year: 2024

description: European journal of theology, V. 18 N. 1 (2009): European Journal of Theology, Band 18, Heft 1
Transfer and Pick and Place Devices Silmulation for Thin Wafers
Creators: name: Zugasti, E.
name: Gavilanes-Perez, I.
name: Ezquer, M.
name: Turumbay, A.
name: Rojo, G.
name: Murillo, M.
name: Cuadra, J.M.
name: Lagunas, A.R.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Handling Issues and Manufacturing Automation

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 2001-2004
description: The problem of wafers breakage during the manufacturing steps of PV cells can be avoided, or at least reduced, with a good knowledge of the mechanical characteristics of the substrates under process. The interest on going to thinner wafers for the PV cells manufacturing and the different mechanical properties of them with respect to the standard (> 200Dm) thickness, can be a risk of breakage increase if used with the standard optimized equipment. The purpose of this work is to demonstrate a methodology for modeling the mechanical behavior of thin silicon wafers under different mechanical stress conditions. The methodology proposed has been developed by using, as a reference, the results of various mechanical tests done on the wafers that represent manipulation conditions or stress induced by the process itself. That results allow to establish a model of the substrate that includes the mechanical budget and will be later submitted to the simulations of the mechanical (or thermal) circumstances that will suffer during the different processes.
Influence of Wafer Quality on Cell Performance
Creators: name: Carnel, L.
name: Hjemas, P.C.
name: Lu, T.
name: Nyhus, J.
name: Helland, K.
name: Gjerstad, Ø.
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; 1186-1188
description: This presentation will show how an improved understanding of multicrystalline wafer quality can
explain the variations in cell performance across multicrystalline silicon blocks. Using infrared scanning a silicon
block was sorted out with precipitates in the middle of the block. Photoluminescence combined with defect etching
revealed needle-like precipitates along the grain boundaries. The precipitations lead to reduced shunt resistance. In
the middle of the block numerous crystallographic defects were identified that lower the current collection and the
final cell efficiency.
The Effect of a Quantum Well Shaped Impurity Profile on the Impedance Spectra and Rectification Behaviour of GaN Solar Cell
Creators: name: Kavasoglu, A.S.
name: Kavasoglu, N.
name: Birgi, O.
name: Oktik, 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; 450-456
description: A proper understanding of the metal semiconductor metal device characterization is crucial since
it is a powerful tool to calculate the physical and electronic parameters of a device. It is well known that the
impurity profile of the solar cell strongly influences the device performance. In particular, the accurate evaluation
of impedance spectra data can give valuable information about the barrier height distribution into device [1-5].
Wide range temperature characteristics of the GaN solar cell have been studied theoretically with current–voltage
(I-V) and impedance spectra, due to the presence of the quantum well shaped impurity profile. The currentvoltage
characteristics of a simulated device have been studied based on the thermionic emission theory and field
emission theory. When a non-uniformly doped semiconductor is thin enough that it can be completely depleted,
the simulated device structure can exhibit many novel transport properties. Two outstanding features of the
structure are that (1) a wide range of high-level injection of minority carriers can be achieved by varying the
barrier heights of the two sides and (2) the Nyquist plot of the device exhibits depressed two semi-circle after
critical threshold forward bias point and frequency depended dielectric loss tangent spectra also shows significant
peaks.
Origin of the mass splitting of azimuthal anisotropies in a multi-phase transport model
Creators: name: Li, Hanlin
name: He, Liang
name: Lin, Zi-Wei
name: Molnar, Denes
name: Wang, Fuqiang
name: Xie, Wei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Both hydrodynamics-based models and a multi-phase transport (AMPT) model can reproduce the mass splitting of azimuthal anisotropy ($v_n$) at low transverse momentum ($p_{\perp}$) as observed in heavy ion collisions. In the AMPT model, however, $v_n$ is mainly generated by the parton escape mechanism, not by the hydrodynamic flow. In this study we provide detailed results on the mass splitting of $v_n$ in this transport model, including $v_2$ and $v_3$ of various hadron species in d+Au and Au+Au collisions at the Relativistic Heavy Ion Collider and p+Pb collisions at the Large Hadron Collider. We show that the mass splitting of hadron $v_2$ and $v_3$ in AMPT first arises from the kinematics in the quark coalescence hadronization process, and then, more dominantly, comes from hadronic rescatterings, even though the contribution from the latter to the overall charged hadron $v_n$ is small. We further show that there is no qualitative difference between heavy ion collisions and small-system collisions or between elliptic ($v_2$) and triangular ($v_3$) anisotropies. Our studies thus demonstrate that the mass splitting of $v_2$ and $v_3$ at low-$p_{\perp}$ is not a unique signature of hydrodynamic collective flow but can be the interplay of several physics effects.
description: 11 pages, 12 figures. Followup long paper to H. Li et al. Phys. Rev. C 93 (2016) 051901(R) (2016) [arXiv:1601.05390]; changes from v1 to v2: added phi-meson results in Fig.2 and Fig.11; v3: published version
Absolute Temperature Measurements in Wire Sawing Process
Creators: name: Johnsen, L.
name: Gastinger, K.
name: Bjerkan, L.
name: Rietzschel, R.
name: Möller, H.J.
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; 1248-1252
description: Cutting of bulk silicon into wafers for Si-solar cells are almost exclusively done by a slurry based
sawing process in multi wire saws. Temperature is one of the parameters influencing this process. In this paper a
model for the emissivity of the sawn zone and the unsawn zone of the block. This allows for compensation of
thermal camera measurements of Si-blocks under sawing. Uncompensated the measurement error can be in the order
of 10°C. Separate models are presented for the unsawn zone and the sawn zone of the block. Results for one sawing
experiment are presented. The measured temperature at the wire entrance is 45°C and the temperature at the wire exit
is 70°C.
Channel Models for Multi-Level Cell Flash Memories Based on Empirical Error Analysis
Creators: name: Taranalli, Veeresh
name: Uchikawa, Hironori
name: Siegel, Paul H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We propose binary discrete parametric channel models for multi-level cell (MLC) flash memories that provide accurate ECC performance estimation by modeling the empirically observed error characteristics under program/erase (P/E) cycling stress. Through a detailed empirical error characterization of 1X-nm and 2Y-nm MLC flash memory chips from two different vendors, we observe and characterize the overdispersion phenomenon in the number of bit errors per ECC frame. A well studied channel model such as the binary asymmetric channel (BAC) model is unable to provide accurate ECC performance estimation. Hence we propose a channel model based on the beta-binomial probability distribution (2-BBM channel model) which is a good fit for the overdispersed empirical error characteristics and show through statistical tests and simulation results for BCH, LDPC and polar codes, that the 2-BBM channel model provides accurate ECC performance estimation in MLC flash memories.
description: Revised to add additional results and discussion, 13 pages, submitted to IEEE Transactions on Communications
Evaluation of Different Temperature Measurement Methods of Crystalline Silicon PV Modules
Creators: name: Jankovec, M.
name: Brecl, K.
name: Kurnik, J.
name: Stepan, J.
name: Topic, M.
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; 4257-4260
description: The aim of this study is to evaluate and compare different temperature measurement methods of PV
modules. For that reason a special multicrystalline silicon PV module was laminated together with several PT1000
temperature sensors attached directly on the back surface of solar cells for reference temperature measurement. On the
back side of the PV module different temperature sensors were attached. The PV module was mounted at outdoor
conditions and monitored for several days. On the basis of measurement results deviations due to different temperature
sensors and methods are investigated. The thermal behavior of the sensors and influences of other factors are discussed.
Optimal sensor type and mounting technique is proposed in the light of its accuracy and applicability for simultaneous
temperature measurement of several PV modules for long term monitoring at outdoor conditions.
Contact geometric descriptions of vector fields on dually flat spaces and their applications in electric circuit models and nonequilibrium statistical mechanics
Creators: name: Goto, Shin-itiro
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Contact geometry has been applied to various mathematical sciences, and it has been proposed that a contact manifold and a strictly convex function induce a dually flat space that is used in information geometry. Here, such a dually flat space is related to a Legendre submanifold in a contact manifold. In this paper contact geometric descriptions of vector fields on dually flat spaces are proposed on the basis of the theory of contact Hamiltonian vector fields. Based on these descriptions, two ways of lifting vector fields on Legendre submanifolds to contact manifolds are given. For some classes of these lifted vector fields, invariant measures in contact manifolds and stability analysis around Legendre submanifolds are explicitly given. Throughout this paper, Legendre duality is explicitly stated. In addition, to show how to apply these general methodologies to applied mathematical disciplines, electric circuit models and some examples taken from nonequilibrium statistical mechanics are analyzed.
description: 38 pages
Comparative Study of Analytical Methods of Determination of Diode Parameters of Solar Cell
Creators: name: Khan, F.
name: Singh, S.N.
name: Singh, P.K.
name: Husain, M.
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; 401-403
description: Single diode model is commonly used to determine diode parameters, viz. shunt resistance Rsh, Series
resistance Rs, diode ideality factor n and the reverse saturation current density J0 of solar cells. Many analytical
methods are available which determine only one or two of the above parameters. For determining all the parameters J
and V values of a single J-V characteristic of the cell at given intensity are used.. However, the values so obtained
differ for different intensity levels and do not show specific trend of the diode parameters on the illumination
intensity. The two analytical methods which can determine all the four parameters of the cell are (i) the five point
method and (ii) the slope method which assume methods assume that the diode parameters are not affected with
illumination or the voltage across the junction. In practice the assumptions are valid only for a small change in the
intensity of illumination or the value of the junction voltage. We have assumed the two methods to determine diode
parameters of Si and CIGS solar cells using J-V characteristics of the cells in the intensity ranges such that Jsc varied
between 29-39 and 11-54mA/cm2 for the Si and CIGS cells respectively. The five point method gave different values
of Rs, n and J0 at different intensities. Thus in the given Jsc range it neither gave any reliable set of values of Rs, n and
J0 nor indicated any specific trend of these parameters on Jsc. On the other hand the slope method gave a single set of
the all four diode parameters that described well all the J-V characteristics of the cell in their respective Jsc ranges.
Road State Inference via Channel State Information
Creators: name: Tulay, Halit Bugra
name: Koksal, Can Emre
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: A wide variety of sensor technologies are recently being adopted for traffic monitoring applications. Since most of these technologies rely on wired infrastructure, the installation and maintenance costs limit the deployment of the traffic monitoring systems. In this paper, we introduce a traffic monitoring approach that exploits physical layer samples in vehicular communications processed by machine learning techniques. We verify the feasibility of our approach with extensive simulations and real-world experiments. First, we simulate wireless channels under realistic traffic conditions using a ray-tracing simulator and a traffic simulator. Next, we conduct experiments in a real-world environment and collect messages transmitted from a roadside unit (RSU). The results show that we are able to predict different levels of service with an accuracy above 80% both on the simulation and experimental data. Further, the proposed approach is capable of estimating the number of vehicles with a low mean absolute error on both data. Our approach is suitable to be deployed alongside the current monitoring systems. It doesn't require additional investment in infrastructure since it relies on existing vehicular networks.
Thermoelectric energy converters under a trade-off figure of merit with broken time-reversal symmetry
Creators: name: Iyyappan, I.
name: Ponmurugan, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the performance of a three-terminal thermoelectric device such as heat engine and refrigerator with broken time-reversal symmetry by applying the unified trade-off figure of merit ($\dotΩ$ criterion) which accounts for both useful energy and losses. For heat engine, we find that a thermoelectric device working under the maximum $\dotΩ$ criterion gives a significantly better performance than a device working at maximum power output. Within the framework of linear irreversible thermodynamics such a direct comparison is not possible for refrigerators, however, our study indicates that, for refrigerator, the maximum cooling load gives a better performance than the maximum $\dotΩ$ criterion for a larger asymmetry. Our results can be useful to choose a suitable optimization criterion for operating a real thermoelectric device with broken time-reversal symmetry.
description: 6 figures
Light Trapping by Means of Electric  Field Enhancement in Metallic Gratings
Creators: name: Llopis, F.J.
name: Jakas, M.M.
name: Tobías Galicia, I.
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; 404-405
description: The enhancement of the electromagnetic field within the grooves of a metallic diffraction grating is
analyzed. A perfect conductor, rectangular-shaped diffraction grating is assumed, therefore, the field enhancement
analyzed in this work is due to resonances caused by the structure itself, and not to the so-called surface-plasmon
resonances which are observed to be influenced by metal properties as well. The modal approach has been employed
for calculations. Basically, the squared amplitude of the electric field within the grooves is calculated as a function of
the wavelength of the incident light. Similarly, the behaviour of the structure when exposed to a conical bundle of
light is also analyzed. The present results show that a field intensity enhancement of the order of 100 is achievable.
However, the spectral width of the resonances decrease with increasing enhancement as is expected.
Simulation of Phosphorus Diffusion and Iron Gettering With Sentaurus Process
Creators: name: Schön, J.
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; 1851-1854
description: In this work simulations of 1-dimensional diffusion profiles for the emitter formation from a POCl3 gas with Sentaurus Process (Synopsis®) are investigated. We implemented phosphorus in-diffusion via growing phosphorus
silicate glass (PSG) in the software and adjusted the parameters for this PV relevant process. In addition a model for phosphorus diffusion gettering (PDG) of iron was implemented. For the precipitation of metals two different models
were used, one with a mean radius for all precipitates following Ham’s law and another one using the Fokker-Planck- Equation (FPE). To fit parameters and to verify the simulations, the results are compared with phosphorus depth profiles,
which were measured after in-diffusion from POCl3 gas at temperatures between 785 and 900°C. We also show some examples for gettering of iron during phosphorus diffusion.
CPP-Net: Context-aware Polygon Proposal Network for Nucleus Segmentation
Creators: name: Chen, Shengcong
name: Ding, Changxing
name: Liu, Minfeng
name: Cheng, Jun
name: Tao, Dacheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Nucleus segmentation is a challenging task due to the crowded distribution and blurry boundaries of nuclei. Recent approaches represent nuclei by means of polygons to differentiate between touching and overlapping nuclei and have accordingly achieved promising performance. Each polygon is represented by a set of centroid-to-boundary distances, which are in turn predicted by features of the centroid pixel for a single nucleus. However, using the centroid pixel alone does not provide sufficient contextual information for robust prediction and thus degrades the segmentation accuracy. To handle this problem, we propose a Context-aware Polygon Proposal Network (CPP-Net) for nucleus segmentation. First, we sample a point set rather than one single pixel within each cell for distance prediction. This strategy substantially enhances contextual information and thereby improves the robustness of the prediction. Second, we propose a Confidence-based Weighting Module, which adaptively fuses the predictions from the sampled point set. Third, we introduce a novel Shape-Aware Perceptual (SAP) loss that constrains the shape of the predicted polygons. Here, the SAP loss is based on an additional network that is pre-trained by means of mapping the centroid probability map and the pixel-to-boundary distance maps to a different nucleus representation. Extensive experiments justify the effectiveness of each component in the proposed CPP-Net. Finally, CPP-Net is found to achieve state-of-the-art performance on three publicly available databases, namely DSB2018, BBBC06, and PanNuke. Code of this paper is available at \url{https://github.com/csccsccsccsc/cpp-net
description: Accepted Version to IEEE Transactions on Image Processing
On the Detection of Non-Transiting Hot Jupiters in Multiple-Planet Systems
Creators: name: Millholland, Sarah
name: Wang, Songhu
name: Laughlin, Gregory
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We outline a photometric method for detecting the presence of a non-transiting short-period giant planet in a planetary system harboring one or more longer period transiting planets. Within a prospective system of the type that we consider, a hot Jupiter on an interior orbit inclined to the line-of-sight signals its presence through approximately sinusoidal full-phase photometric variations in the stellar light curve, correlated with astrometrically induced transit timing variations for exterior transiting planets. Systems containing a hot Jupiter along with a low-mass outer planet or planets on inclined orbits are a predicted hallmark of in situ accretion for hot Jupiters, and their presence can thus be used to test planetary formation theories. We outline the prospects for detecting non-transiting hot Jupiters using photometric data from typical \textit{Kepler} objects of interest (KOIs). As a demonstration of the technique, we perform a brief assessment of \textit{Kepler} candidates and identify a potential non-transiting hot Jupiter in the KOI-1822 system. Candidate non-transiting hot Jupiters can be readily confirmed with a small number of Doppler velocity observations, even for stars with $V\gtrsim14$.
description: Published in ApJL. Updated version contains a different non-transiting HJ candidate than the original
Tecnologias Para Prevenção De Acidentes Domésticos Em Crianças Na Primeira Infância: Revisão De Escopo
Creators: name: de Sousa, Caroline
name: da Silva Fernandes, Maria
name: Nascimento, Jamile
name: Vitoriano, Anna
name: de Sousa Silva, Natália
name: Silva, Vitória
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: Nursing
subject: FOS: Health sciences

description: A primeira infância é o período que compreende os primeiros seis anos de vida de uma criança. Nesse período ocorre grande parte do seu desenvolvimento físico, psicológico e cognitivo. Objetivo deste estudo foi mapear na literatura as tecnologias utilizadas para prevenção de acidentes domésticos em crianças na primeira infância. Para tal, realizou-se uma revisão de escopo seguindo as diretrizes do PRISMA. Para tanto, os descritores foram “accident home”, “child preschool”, “accident prevention” e “technology” e descritor não controlado: “toodler”. foram consultadas nos bancos de dados de periódicos da PUBMED, SCOPUS, CINAHL, SCIELO, LILACS. Foram incluídos os estudos publicados a partir do ano de 2009 a 2020. Entre os 439 estudos encontrados, 68 artigos eram duplicados, e 361 não atendiam plenamente ao objetivo desta revisão; assim, 10 estudos foram submetidos à apreciação desse escopo.
Optoelectronic Characterisation of Intermediate Band Solar Cells by Photoreflectance: Comparison to Other Advanced Architectures
Creators: name: Cánovas, E.
name: Fuertes Marrón, D.
name: Martí Vega, A.
name: Luque, A.
name: Stanley, C.R.
name: Farmer, C.D.
name: Bett, A.W.
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; 428-431
description: The fabrication and design of novel materials and devices for advanced photovoltaics, like the
intermediate-band solar cell (IBSC), requires the use of specific characterization tools providing information about
their optoelectronic properties. We have tested the suitability of photoreflectance for the characterization of IBSC
prototypes based on quantum dots and compared the results obtained with those predicted by the theory.
Nonidealities in operative devices have been identified and detailed information has been obtained about the
electronic structure of the materials. We have compared PR spectra of IBSCs with those obtained from alternative
device architectures, namely a triple-junction solar cell and a multi-quantum well structure. Some general
conclusions are drawn demonstrating the potential of the technique.
Linear structures on locales
Creators: name: Resende, Pedro
name: Santos, João Paulo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 06D22, 18B30, 18B99, 46A99, 46M20, 55R65

description: We define a notion of morphism for quotient vector bundles that yields both a category $\textit{QVBun}$ and a contravariant global sections functor $C:\textit{QVBun}^{\textrm{op}}\to\textit{Vect}$ whose restriction to trivial vector bundles with fiber $F$ coincides with the contravariant functor $\textit{Top}^{\textrm{op}}\to\textit{Vect}$ of $F$-valued continuous functions. Based on this we obtain a linear extension of the adjunction between the categories of topological spaces and locales: (i) a linearized topological space is a spectral vector bundle, by which is meant a mildly restricted type of quotient vector bundle; (ii) a linearized locale is a locale $\triangle$ equipped with both a topological vector space $A$ and a $\triangle$-valued support map for the elements of $A$ satisfying a continuity condition relative to the spectrum of $\triangle$ and the lower Vietoris topology on $\operatorname{Sub} A$; (iii) we obtain an adjunction between the full subcategory of spectral vector bundles $\textit{QVBun}_Σ$ and the category of linearized locales $\textit{LinLoc}$, which restricts to an equivalence of categories between sober spectral vector bundles and spatial linearized locales. The spectral vector bundles are classified by a finer topology on $\operatorname{Sub} A$, called the open support topology, but there is no notion of universal spectral vector bundle for an arbitrary topological vector space $A$.
description: 40 pages. Version 5 differs from 4 only in typesetting style and in the numbering of theorems, lemmas and examples (which now coincides with that of the published version). Version 6 corrects typos in pp. 2 and 20 ("span" was missing in the definition of gamma), and in the proof of Th. 6.16