cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Passivation Properties of RST Silicon Ribbon by Single SiNx:H or Double a-Si:H / SiNx:H Layer and Solar Cells
Creators: name: Slaoui, A.
name: Tuzun, Ö.
name: Jolivet, E.
name: Bigot, C.
name: Belouet, 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; 1884-1888
description: In this work, we have investigated the electronic quality of Silicon Ribbon obtained on a Sacrificial carbon Template (RST) before and after surface passivation by a SiN:H layer or a double a-Si:H/SiN:H layer. We have studied by optical microscope the RST ribbon samples after chemical etching to reveal the defects and grains orientation. The thin layers a- Si:H and/or SiNx:H were deposited on the RST materials in a remote plasma enhanced CVD reactor. The amorphous silicon was deposited at 50°C while the silicon nitride was obtained at 400°C using SiH4 and NH3. The passivation effect was monitored by measuring the minority carrier effective lifetime using the photoconductivity decay set-up. Effective minority carrier lifetime values in the range ~ 6-8 μs were measured on Ribbon samples coated with 70nm thick SiN:H layer while it is about ~4 μs when using first a 10nm thick a-Si:H covered with a 70nm SiN:H layer. The minority carrier diffusion length that can be deduced from such values is in the range 60-80 μm, almost the thickness of the ribbon sheets. Our results indicates that the SiNx:H is very
efficient for the surface passivation of the RST ribbon, while the double a-Si/SiN has to be optimized versus the a-Si:H deposition parameters. We have fabricated solar cells on the grown RST sheets. First test cells exhibit efficiencies approaching 10% on 120μm thick ribbons. There are rooms for further improvements by optimizing the process.
Mean-field coupling of identical expanding circle maps
Creators: name: Sélley, Fanni
name: Bálint, Péter
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Globally coupled doubling maps are studied in this paper. In this setting and for finitely many sites, two distinct bifurcation values of the coupling strength have been identified in the literature, corresponding to the emergence of contracting directions (\cite{koiller2010coupled}) and, specifically for $N=3$ sites, to the loss of ergodicity (\cite{fernandez2014breaking}). On the one hand, we reconsider these results and provide an interpretation of the observed dynamical phenomena in terms of the synchronization of the sites. On the other hand, we initiate a new point of view which focuses on the evolution of distributions and allows to incorporate the investigation of infinitely many sites. In particular we observe phenomena in the infinite system that is analogous to the limit states of the contracting regime of $N=3$ sites.
Inverse magnetic catalysis and confinement within a contact interaction model for quarks
Creators: name: Ahmad, Aftab
name: Raya, Alfredo
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We evaluate the impact of an external magnetic field on the chiral symmetry and confinement-deconfinement transition temperatures by using a vector-vector contact interaction model for quarks regularized so as to include an explicit confining scale in the corresponding gap equation. Exploring the evolution of the chiral condensate and the confining scale with temperature $T$ and magnetic field strength $eB$ ($e$ represents the fundamental electric charge), we determine the pseudo-critical temperatures for the chiral ($T_c^χ$) and deconfinement ($T_c^c$) transitions from their inflection points, respectively. By construction, $T_c^χ= T_c^c$ in the chiral limit. Within a mean field approximation, we observe the magnetic catalysis phenomenon, characterized by a rising behavior of $T_c^χ$ and $T_c^c$ with growing $eB$. Considering a lattice inspired running coupling which monotonically decreases with $eB$, inverse magnetic catalysis takes place in our model. We explore the role of the magnetic field in the traits of the confinement-deconfinement transition described by the model. Our findings are also in agreement with predictions derived from effective models of strong interactions.
description: 14 pages,10 Figures
Single Side Etching - Key Technology for Industrial High Efficiency Processing
Creators: name: Rentsch, J.
name: Gautero, L.
name: Lemke, A.
name: Eigner, S.
name: Zimmer, M.
name: Walter, F.
name: Hofmann, M.
name: Preu, R.
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; 1889-1892
description: Single side etching technologies will gain more and more importance when high efficiency cell structures with passivated and locally contacted rear side will enter industrial production. Within this paper different etching approaches for the solar cells rear, either dry or wet chemically, have been investigated in terms of resulting surface topography, and, combined with subsequent PECVD stack passivation, in terms of surface recombination velocity and optical performance. Correlations between surface roughness, surface recombination velocity and final
Voc potential have been taken. Thin (130 μm) passivated and locally LFC contacted Cz-Si solar cells have been processed implementing the different etching sequences reaching up to 4 % relative higher short circuit currents
compared to Al-BSF reference cells with maximum efficiency of 16.2 %.
Novel Advantageous Procedure for In-Line Diffusion of Industrial Solar Cells on mc-Si and EFG-Si Material
Creators: name: Horzel, J.
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; 1077-1081
description: In-line diffusion processing in industrial production lines for solar cell fabrication suffered so far from
equipment that required compromises with respect to process time, cleanliness and throughput. Typically, conveyor
belt furnaces or roller furnaces were used to transport the wafers continuously through a furnace with a dedicated
temperature-time profile.
Despite the knowledge that multicrystalline Si solar cells benefit from moderate diffusion temperatures not exceeding
900° C and from adapted gettering strategies (including long anneal times at reduced temperature) throughput needs
forced so far to apply a rather limited process window with respect to process time and temperature profiles.
A new approach for in-line processing developed at SCHOTT Solar over the recent years allows now increasing
processing time as required without sacrificing throughput and without having to increase the length of the diffusion
equipment significantly. In addition this type of process is inherently cleaner than other in-line diffusion processes
available on the market. This results in improved average efficiency and higher throughput for industrial production
Augmentation Pathways Network for Visual Recognition
Creators: name: Bai, Yalong
name: Zhou, Mohan
name: Zhang, Wei
name: Zhou, Bowen
name: Mei, Tao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Data augmentation is practically helpful for visual recognition, especially at the time of data scarcity. However, such success is only limited to quite a few light augmentations (e.g., random crop, flip). Heavy augmentations are either unstable or show adverse effects during training, owing to the big gap between the original and augmented images. This paper introduces a novel network design, noted as Augmentation Pathways (AP), to systematically stabilize training on a much wider range of augmentation policies. Notably, AP tames various heavy data augmentations and stably boosts performance without a careful selection among augmentation policies. Unlike traditional single pathway, augmented images are processed in different neural paths. The main pathway handles the light augmentations, while other pathways focus on the heavier augmentations. By interacting with multiple paths in a dependent manner, the backbone network robustly learns from shared visual patterns among augmentations, and suppresses the side effect of heavy augmentations at the same time. Furthermore, we extend AP to high-order versions for high-order scenarios, demonstrating its robustness and flexibility in practical usage. Experimental results on ImageNet demonstrate the compatibility and effectiveness on a much wider range of augmentations, while consuming fewer parameters and lower computational costs at inference time.
description: accepted by TPAMI 2023
On generalized estimating equations for vector regression
Creators: name: Huang, Alan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Generalized estimating equations (GEE; Liang & Zeger 1986) for general vector regression settings are examined. When the response vectors are of mixed type (e.g. continuous-binary response pairs), the GEE approach is a semiparametric alternative to full-likelihood copula methods, and is closely related to the mean-covariance estimation equations approach of Prentice & Zhao (1991). When the response vectors are of the same type (e.g. measurements on left and right eyes), the GEE approach can be viewed as a "plug-in" to existing methods, such as the vglm function from the state-of-the-art VGAM R package of Yee (2015). In either scenario, the GEE approach offers asymptotically correct inferences on model parameters regardless of whether the working variance-covariance model is correctly or incorrectly specified. The finite-sample performance of the method is assessed using simulation studies based on a burn injury dataset (Song 2007) and a Sorbinil eye trial dataset (Rosner et. al 2006). The method is applied to data analysis examples using the same two datasets, as well as on a presence/absence dataset on three plant species in the Hunua ranges of Auckland.
description: 20 pages, 5 tables, 1 figure. (To appear in the Australian and New Zealand Journal of Statistics)
The Influence of Phosphorous Concentration in Precursor Gas Mixture on the Emitter Sheet Resistance in Crystalline Silicon
Creators: name: Panek, P.
name: Drabczyk, K.
name: Slaoui, A.
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; 1904-1906
description: Here, we investigate the effect of the phosphorous concentration in the N2-O2-POCl3 gas mixture on the sheet resistance of n-type emitter obtained by the diffusion process using a quartz industrial reactor. The processing time and temperature were kept constant, 40 min and 850 oC respectively. The carrier gas flow rate via bubbler filled with POCl3 was varied from 5 l/h to 20 l/h and we have obtained sheet resistance values from about 80 ohm/sq down to 36 ohm/sq thanks to a difference in the Phosphorous elements saturation in the phosphorous silicate glass. The sheet resistance distribution on each wafer was measured by the four point resistivity probe method while the phosphorus distribution profile for selected wafers were analysed by using the Secondary Ion Mass Spectroscopy (SIMS) method. Solar cells on monocrystalline and multicrystalline silicon wafers with different emitters were realized using SiO2 thermal oxide as a passivating layer, TiO2 as an antireflection layer, and PV145 Du Pont paste for front contact electrode followed by the co-firing process in a conveyor IR furnace. The completed solar cells were investigated through the I-V characteristic and spectral response measurements. The effect of the sheet resistance on the PV parameters and the spectral response in short wavelength region are discussed. The best solar cell elaborated in that simple and inexpensive technology on multicrystalline Si has reached 12.96 % photoconversion efficiency and 15.05 % on Cz-Si.
CdTe Thin-Film Solar Modules: Comparison of Non-Linear Models
Creators: name: Guerrero-Pérez, J.
name: Molina-García, A.
name: Fuentes, J.
name: Espín, F.
name: Martínez, J.
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; 4164-4171
description: During the last years, different models describing
the current–voltage relation for Photovoltaic (PV) cells as a
function of solar irradiance and temperature have been proposed
and assessed for silicon technology. Mainly, they can be classified
into two non-linear approaches: a Single Diode Model (SDM)
where it is necessary to fit seven constant parameteres; and a
Double Diode Model (DDM) including four exponential terms
and twelve constant parameters. In this paper, a FS-270 module
is characterized using both SDM and DDM approaches from
the datasheet information,fitting the model parameters through
numerical methods.
In a Spanish PV plant, current, voltage, solar irradiance and
temperature values for a 96 FS-270 module array have been
measured during several months. Along this field campaign, most
of common array work-points have been collected, obtaining
MPPs for different solar irradiance and temperature conditions.
From these collected data, a set of specific [solar irradiance,
temperature] points are identified and simulations with both
models are carried out, obtaining a continuous curve within
a selection group of [solar irradiance, temperature, current,
voltage] points. Finally, the curve of each model is compared
with the measurement data.
Exemplary Results of Temperature-Depending Mechanical Load Tests under Variation of Glass and Foil Parameters and Investigation of Different Load Types
Creators: name: Schubbert, C.
name: Bachmann, T.
name: Dietrich, S.
name: Ebert, 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; 3981-3983
description: One of the challenges of photovoltaic technology is producing modules that are robust enough to withstand
the environmental and mechanical challenges that will be encountered throughout the product lifecycle. To verify
the product durability knowledge and expertise of mechanical properties in dependence from module temperature
and glass and interlayer thickness is necessary.
The mechanical behavior of large-area thin film modules is analyzed by experimental data and FEM simulations. The
results show the temperature-dependent behavior combined with a variation of PVB interlayer thickness within a
temperature range from -25 °C to 60 °C. The mechanical properties are mainly influenced by the temperaturedependent
strength of the PVB interlayer.
Local and global survival for infections with recovery
Creators: name: Baldasso, Rangel
name: Stauffer, Alexandre
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K37, 60K35, 82C22

description: We establish two open problems from Kesten and Sidoravicius [8]. Particles are initially placed on $\Z^{d}$ with a given density and evolve as independent continuous-time random walks. Particles initially placed at the origin are declared as infected. Infection transmits instantaneously to healthy particles on the same site and infected particles become healthy with a positive rate. We prove that, for small enough recovery rates, the infection process survives and visits the origin infinitely many times on the event of survival. Second, we establish the existence of density parameters for which the infection survives for all choices of the recovery rate.
description: 13 pages, manuscript matching published version
A Light Touch for Heavily Constrained SGD
Creators: name: Cotter, Andrew
name: Gupta, Maya
name: Pfeifer, Jan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Minimizing empirical risk subject to a set of constraints can be a useful strategy for learning restricted classes of functions, such as monotonic functions, submodular functions, classifiers that guarantee a certain class label for some subset of examples, etc. However, these restrictions may result in a very large number of constraints. Projected stochastic gradient descent (SGD) is often the default choice for large-scale optimization in machine learning, but requires a projection after each update. For heavily-constrained objectives, we propose an efficient extension of SGD that stays close to the feasible region while only applying constraints probabilistically at each iteration. Theoretical analysis shows a compelling trade-off between per-iteration work and the number of iterations needed on problems with a large number of constraints.
Influence on Starobinsky inflation by other fields with large amplitude
Creators: name: Kasuya, Shinta
name: Moritake, Kanto
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Starobinsky model is one of the inflation models consistent with the result of CMB observation by the Planck satellite. We consider the dynamics of the Starobinsky inflation in the presence of another scalar field with a large expectation value during inflation due to a negative Hubble-induced mass. We find that it would be affected if the other field has an amplitude close to the Planck scale. In this case, we may observe such effects on the Starobinsky model by future CMB experiments.
description: 5 pages, 9 figures, discussions on the tensor-to-scalar ratio and the verification of the scenario by future CMB experiments are added, matches to published version
Discovery of a bi-critical point between antiferromagnetic and superconducting phases in pressurized single crystal Ca0.73La0.27FeAs2
Creators: name: Zhou, Yazhou
name: Jiang, Shan
name: Wu, Qi
name: Sidorov, Vladimir A.
name: Guo, Jing
name: Yi, Wei
name: Zhang, Shan
name: Wang, Zhe
name: Wang, Honghong
name: Cai, Shu
name: Yang, Ke
name: Jiang, Sheng
name: Li, Aiguo
name: Ni, Ni
name: Zhang, Guangming
name: Sun, Liling
name: Zhao, Zhongxian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: One of the most strikingly universal features of the high temperature superconductors is that the superconducting phase emerges in the close proximity of the antiferromagnetic phase, and the interplay between these two phases poses a long standing challenge. It is commonly believed that,as the antiferromagnetic transition temperature is continuously suppressed to zero, there appears a quantum critical point, around which the existence of antiferromagnetic fluctuation is responsible for the development of the superconductivity. In contrast to this scenario, we report the discovery of a bi-critical point identified at 2.88 GPa and 26.02 K in the pressurized high quality single crystal Ca0.73La0.27FeAs2 by complementary in situ high pressure measurements. At the critical pressure, we find that the antiferromagnetism suddenly disappears and superconductivity simultaneously emerges at almost the same temperature, and that the external magnetic field suppresses the superconducting transition temperature but hardly affects the antiferromagnetic transition temperature.
description: 15 pages and 4 figures
Cleaving vs. Sawing – Gaining Production Efficiency in c-Si Wafering
Creators: name: Fujisaka, A.
name: Brailove, A.
name: Fong, T.
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; 1094-1097
description: In crystalline-silicon solar technology, the barriers to matching thin-film module cost targets are
unlikely to be overcome by advances in cell and module process steps alone. Today, the highest material cost for the
cell manufacturers is the starting silicon wafer substrate. As a result, extensive efforts are being made to reduce wafer
manufacturing costs by driving toward thinner wafers and reducing kerf-loss (silicon waste). This paper introduces a
new approach for wafer production that enables a paradigm shift in cost reduction by eliminating kerf-loss. The
multiple points of cost reduction achieved by this innovative process will be presented, showing the potential for
substantially lowering wafering cost, improving wafer attributes, and providing both upstream and downstream cost
savings.
Cyclic and heteroclinic flows near general static spherically symmetric black holes: Semi-cyclic flows -- Addendum and corrigendum
Creators: name: Azreg-Aïnou, Mustapha
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present new accretion solutions of a polytropic perfect fluid onto an f(R)-gravity de Sitter-like black hole. We consider two f(R)-gravity models and obtain finite-period cyclic flows oscillating between the event and cosmological horizons as well as semi-cyclic critical flows executing a two-way motion from and back to the same horizon. Besides the generalizations and new solutions presented in this work, a corrigendum to Eur. Phys. J. C (2016) 76:280 is provided.
description: 6 pages, 3 figures, New title
Study of Defect Regions Local Heating in Solar Cells PN Junctions by Means of Microplasma Noise
Creators: name: Macku, R.
name: Trcka, T.
name: Koktavy, B.
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; 364-368
description: The present paper deals with diagnostics of local defects in crystalline silicon solar cells pn junctions.
Local avalanche breakdowns take place in the neighbourhood of these defects at sufficiently high reverse voltage.
These breakdowns give rise to microplasma noise which is often characterized by current impulses whose inception
time and duration time are random. The effective cross-section of the microplasma region being rather small, the
current density may achieve a high value, which in turn can result in local heating of the micro-region and,
consequently, the junction destruction. This phenomenon can be observed in solar panels when individual solar cells
can go into the reversed-bias state due to the shadowing of a part of the panel. Based on our analysis of the
microplasma noise statistical generation-recombination process for a time-dependent generation and recombination
coefficients in the course of the impulse separation and impulse duration, an algorithm for determining the generation
and recombination coefficients time dependence from the experimental impulse separation and impulse duration
probability density distributions has been found out. In this way, it was verified that the experimentally determined
changes in the impulse separation distribution density can be due to the generation and recombination coefficients
time dependence. We also obtained experimentally steady-state levels of both coefficients for a sufficiently long
times of impulse separation and impulse duration.
title: A case of presacral schwanomma with cystic degeneration.
Creators: name: Vishnu, Nallabothula
Publisher: name: EURORAD
Year: 2022
Subjects: subject: Neuroradiology
subject: Neuroradiology spine
subject: Oncology
subject: Pelvis
subject: CT
subject: MR
subject: MR-Functional imaging
subject: Biopsy
subject: Intraoperative
subject: Removal
subject: Metastases
subject: Neoplasia
subject: Outcomes
subject: Clinical Cases

description: Clinical History: A 60-year-old man presented with complaints of abdominal pain, constipation and urinary urgency since 1 week.

description: 60 years, male
Texturization by Metal-Assisted Chemical Etching for Silicon Solar Cells
Creators: name: Lipinski, M.
name: Cichoszewski, J.
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; 1911-1914
description: This paper describes a surface texturization method for crystalline silicon solar cells which bases on metal-assisted chemical etching (MAE). Palladium particles are deposited on multi-crystalline wafers by immersing in PdCl2 solution. Porous silicon forms by metal-assisted chemical etching in a HF:H2O2 solution. A following etch step in either a KOH solution or a HF:HNO3 solution results in different topographies of the textured mc-Si surface. The MAE texturization decreases the effective reflectivity of mc-Si wafers to Reff = 10.8 %, which lowers surface reflection significant compared to a state of the art acidic texturization with Reff = 18.6 %. The presented method of texturization shows large potential for improving the efficiency of industrial solar cells based on every crystalline Si material.
Postoperative pulmonalen Hypertension nach Korrektur angeborener Herzfehler
Creators: name: Schulze-Neick, Ingram
Publisher: name: Humboldt-Universität zu Berlin, Medizinische Fakultät - Universitätsklinikum Charité
Year: 2002
Subjects: subject: Lungenfunktion
subject: Stickstoffmonoxyd
subject: Angeborene Herzfehler
subject: Pulmonale Hypertension
subject: nitric oxide
subject: pulmonary function
subject: pulmonary hypertension
subject: Congenital Heart disease
subject: 610 Medizin
subject: 33 Medizin
subject: YB 9600

description: Die postoperative pulmonale Hypertension (PHT) bei Kindern nach chirurgischer Korrektur eines angeborenen Herzfehlers ist mit einer erhöhten postoperativen Morbidität und Mortalität assoziiert. Sie kann in lebensbedrohliche pulmonalhypertensive Krisen exazerbieren. Eine systematische Untersuchung der zugrundeliegenden Pathophysiologie sowie mögliche Behandlungsformen der postoperativen PHT ist Gegenstand dieser Arbeiten. Alle Untersuchungen wurden im Rahmen der klinischen Routine an sedierten und zumeist intubierten und mechanisch beatmeten Kindern mit angeborenen Herzfehlern durchgeführt, sowohl präoperativ im Herzkatheterlabor, als auch postoperativ auf der Intensivstation. Es wird die Anwendung von inhalatorischem NO und aerosolisiertem PGI2 zur Diagnostik und Therapie der prä- und postoperativen PHT bei Patienten mit angeborenen Herzfehlern konkret entwickelt und dargestellt. Die Bedeutung von pulmonalem endothelialen Versagen, zirkulierenden plasmatischen Endothelinen und vaskulo-bronchialen Interaktionen für Ausprägung der postoperativen PHT und den klinischen Verlauf des Patienten werden hier erstmals dargestellt. Insgesamt werden hierdurch neue Therapieansätze aufgezeigt, welche bereits im Einsatz sind oder in naher Zukunft umgesetzt werden.
description: Postoperative pulmonary hypertension in children after congenital heart surgery is associated with increased postoperative morbidity and mortality. This state may exacerbate in livethreatening pulmonary hypertensive crises. A systematic assessment of the underlying pathophysiology and possible treatment options was the object of this work. All studies were done within the clinical routine in sedated and mostly intubated and mechanically ventilated children with congenital heart disease, during preoperative evaluation in the cardiac catheter laboratory, and during their postoperative recovery on the intensive care unit. The application of inhaled nitric oxide and aerosolised prostacyclin for the preoperative evaluation and postoperative treatment of pulmonary hypertension is described. The impact of pulmonary endothelial dysfunction, circulating endothelins, and vasculo-bronchial interactions for the development and perpetuation of postoperative pulmonary hypertension and the clinical course of the patient is delineated for the first time. Thus, novel therapeutic options are demonstrated which may be already in use or will be applied in the near future.
Toward the development of NII RDC application profile using ontology technology
Creators: name: Minamiyama, Yasuyuki
name: Hayashi, Masaharu
name: Fujiwara, Ikki
name: Onami, Jun-ichi
name: Yokoyama, Shigetoshi
name: Komiyama, Yusuke
name: Yamaji, Kazutsuna
Publisher: name: Zenodo
Year: 2023
Subjects: Research Data Platform, Application Profile, Interoperability, Ontology

description: In recent years, there has been international progress in developing platforms that support the reproducibility and reusability of research data. Typical platforms adopt a service architecture integrating multiple information systems to cover the entire research data lifecycle. In realizing this architecture, specifications for inheriting processes and results executed on different information systems play an essential role. This study introduces our practices for application profile development using ontology technology in the NII Research Data Cloud.
Boundary values of mixed-symmetry massless fields in AdS space
Creators: name: Chekmenev, Alexander
name: Grigoriev, Maxim
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We elaborate on the ambient space approach to boundary values of $AdS_{d+1}$ gauge fields and apply it to massless fields of mixed-symmetry type. In the most interesting case of odd-dimensional bulk the respective leading boundary values are conformal gauge fields subject to the invariant equations. Our approach gives a manifestly conformal and gauge covariant formulation for these fields. Although such formulation employs numerous auxiliary fields, it comes with a systematic procedure for their elimination that results in a more concise formulation involving only a reasonable set of auxiliaries, which eventually (at least in principle) can be reduced to the minimal formulation in terms of the irreducible Lorentz tensors. The simplest mixed-symmetry field, namely, the rank-3 tensor associated to the two-row Young diagram, is considered in some details.
description: 29 pages, v2: minor corrections, references added, to appear in Nucl. Phys. B
Uncertainties of PV Module - Long-Term Outdoor Testing
Creators: name: Domine, D.
name: Jagomägi, A.
name: Guérin De Montgareuil, A.
name: Friesen, G.
name: Mõttus, E.
name: Mohring, H.-D.
name: Stellbogen, D.
name: Betts, T.
name: Gottschalg, R.
name: Zdanowicz, T.
name: Prorok, M.
name: Fabero, F.
name: Faiman, D.
name: Herrmann, 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; 4172-4178
description: Usually, the measurement of the electrical performance of photovoltaic (PV) modules at standard test
conditions (STC: 25°C junction temperature, 1000 Wm-2 plane of module irradiance and AM1.5G spectrum) is carried
out indoors with a solar simulator or outdoors on a sun-tracker during a short-term test. Whitfield and Osterwald
proposed a calculation procedure for the uncertainty of PV module performance measurement for the case of short-term
outdoor measurement. The purpose of the present work is to evaluate this calculation procedure in the case of IVparameters
extraction from data acquired during long-term outdoor testing of PV modules mounted on a fixed stand, in
Tallinn, Estonia. In such a northern location, the data distributions present a large amount of points at condition of
standard irradiance and temperature (SIT: 1000 Wm-2 and 25°C). An uncertainty analysis dedicated to this situation is
proposed. It includes the calculation procedure proposed by Whitfield and Osterwald which allows for a straightforward
calculation of the uncertainties in parameters obtained by linear regression methods when the experimental data points
have uncertainties (error bars) in both coordinates. The procedure of Whitfield and Osterwald provides consistent
uncertainties compared with linear regression methods taking into account error bars in the y-direction only.
Evaluation of Models for the Internal Capacitance of a PV Module for the Design and Simulation of Power Converters
Creators: name: Meza, C.
name: Virtuani, A.
name: Chianese, D.
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; 4179-4183
description: In order to properly size and design the power electronics required to test a photovoltaic (PV) module,
it is necessary to effectively model the electrical characteristics of the module. This becomes more relevant when an
electronic load needs to be designed to obtain current-voltage (IV) characteristics of a PV module using a pulsed
solar simulator (flasher). In order to develop efficient and reliable power electronics able to test emerging highefficient
PV technologies - showing a capacitive behavior for short IV acquisition sweep-times - it is necessary to
define complete PV module models including their nonlinear static and dynamic behavior. In the present work, two
simple dynamic models were obtained from the experimental data of two PV modules, one with a pronounced
capacitive behavior, the second with a slightly capacitive behavior. The agreement between the simulations and the
experimental data for these devices show that the models developed give a good description of the transient behavior
for these PV modules.
Plasma Enhanced Chemical Etching at Atmospheric Pressure for Crystalline Silicon Wafer Processing and  Process Control by In-Line FTIR Gas Spetroscopy
Creators: name: Linaschke, D.
name: Leistner, M.
name: Mäder, G.
name: Grählert, W.
name: Dani, I.
name: Kaskel, S.
name: Lopez, E.
name: Hopfe, V.
name: Kirschmann, M.
name: Frenck, J.
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; 1907-1910
description: In advanced in-line processing of crystalline silicon solar cells, there is a high interest in dry etching at atmospheric pressure as an alternative to the current technology, especially when combined with similar process technologies, as for example deposition techniques. Based on a linearly extended DC arc with a width of 150 mm at atmospheric pressure, an innovative plasma etching technology has been studied. The technology operates in a remote mode, avoiding plasma source damage due to chemical attack of the etching gas. Fluorine radicals generated from NF3 and SF6 downstream of the plasma source have been successfully used to etch (100)-mono-crystalline-Si wafers. Independent industrial tests for rear surface etching for edge isolation of 125 x 125 mm2 mono-crystalline silicon wafers have been carried out. Rear surface etching for edge isolation results in short circuit currents better than values achieved by laser edge isolation, whereas cell efficiencies are comparable to reference values. Fourier Transformed Infrared (FTIR) gas spectroscopy was applied to monitor the etching processes. This nondestructive in-line measurement method allows the instantaneous determination of the current etching rates.
Initial Test of "BabyRobot" Behaviour on a Teleoperated Toy Substitution: Improving the Motor Skills of Toddlers
Creators: name: Canas, Eric
name: Garcia, Alba M. G.
name: Garrell, Anais
name: Angulo, Cecilio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: This article introduces "Baby Robot", a robot aiming to improve motor skills of babies and toddlers. Authors developed a car-like toy that moves autonomously using reinforcement learning and computer vision techniques. The robot behaviour is to escape from a target baby that has been previously recognized, or at least detected, while avoiding obstacles, so that the security of the baby is not compromised. A myriad of commercial toys with a similar mobility improvement purpose are into the market; however, there is no one that bets for an intelligent autonomous movement, as they perform simple yet repetitive trajectories in the best of the cases. Two crawling toys -- one in representation of "Baby Robot" -- were tested in a real environment with respect to regular toys in order to check how they improved the toddlers mobility. These real-life experiments were conducted with our proposed robot in a kindergarten, where a group of children interacted with the toys. Significant improvement in the motion skills of participants were detected.
Analytical recursive method to ascertain multisite entanglement in doped quantum spin ladders
Creators: name: Roy, Sudipto Singha
name: Dhar, Himadri Shekhar
name: Rakshit, Debraj
name: De, Aditi Sen
name: Sen, Ujjwal
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We formulate an analytical recursive method to generate the wave function of doped short-range resonating valence bond (RVB) states as a tool to efficiently estimate multisite entanglement as well as other physical quantities in doped quantum spin ladders. We prove that doped RVB ladder states are always genuine multipartite entangled. Importantly, our results show that within specific doping concentration and model parameter regimes, the doped RVB state essentially characterizes the trends of genuine multiparty entanglement in the exact ground states of the Hubbard model with large onsite interactions, in the limit which yields the $t$-$J$ Hamiltonian.
description: 11 pages, 6 figures, RevTex 4-1, accepted in Phys. Rev. B
Photovoltaic Module Laboratory Reflectivity Measurements and Comparison Analysis with Other Reflecting Surfaces
Creators: name: Protogeropoulos, C.
name: Zachariou, A.
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; 355-358
description: Reflectivity measurements off the surface of PV modules and other reflecting surfaces were performed in the
laboratory. The measurements were done using dedicated instruments of very high accuracy and focused on the visible light
wavelength, i.e. 380nm to 700nm. The results proved that the reflections coming from PV modules are significantly less
intense than others resulting from other surfaces, particularly those coming from vehicles. At large angles of incidence, when
reflectivity is maximised, PV modules show advantageous behaviour due to the high absorption compared to other surfaces
like car windshields and paints.
Deflation as a Method of Variance Reduction for Estimating the Trace of a Matrix Inverse
Creators: name: Gambhir, Arjun Singh
name: Stathopoulos, Andreas
name: Orginos, Kostas
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Many fields require computing the trace of the inverse of a large, sparse matrix. The typical method used for such computations is the Hutchinson method which is a Monte Carlo (MC) averaging over matrix quadratures. To improve its convergence, several variance reductions techniques have been proposed. In this paper, we study the effects of deflating the near null singular value space. We make two main contributions. First, we analyze the variance of the Hutchinson method as a function of the deflated singular values and vectors. Although this provides good intuition in general, by assuming additionally that the singular vectors are random unitary matrices, we arrive at concise formulas for the deflated variance that include only the variance and mean of the singular values. We make the remarkable observation that deflation may increase variance for Hermitian matrices but not for non-Hermitian ones. This is a rare, if not unique, property where non-Hermitian matrices outperform Hermitian ones. The theory can be used as a model for predicting the benefits of deflation. Second, we use deflation in the context of a large scale application of "disconnected diagrams" in Lattice QCD. On lattices, Hierarchical Probing (HP) has previously provided an order of magnitude of variance reduction over MC by removing "error" from neighboring nodes of increasing distance in the lattice. Although deflation used directly on MC yields a limited improvement of 30% in our problem, when combined with HP they reduce variance by a factor of over 60 compared to MC. For this, we pre-computated 1000 smallest singular values of an ill-conditioned matrix of size 25 million. Using PRIMME and a domain-specific Algebraic Multigrid preconditioner, we perform one of the largest eigenvalue computations in Lattice QCD at a fraction of the cost of our trace computation.
description: 21 pages, 24 figures
Entanglement Generation Between Two Mechanical Resonators in Two Optomechanical Cavities
Creators: name: Rehaily, Adel AL
name: Bougouffa, Smail
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A standard model is suggested to explore correlation features of two spatially separated optomechanical cavities. The cavities are coupled through the photon-hopping process. In particular, we investigate the generation of entanglement between mechanical resonators in the strong coupling regime and the two cavities are assumed to be driven by a coherent laser field. In order to quantify entanglement we use the logarithmic negativity. The analytical solutions are presented for the system in a parameter regime very close to the current experimental results. We show that in the presence of the photon hopping process between the cavities, the two mechanical resonators and the field modes can be entangled. This shows clearly that the entanglement can be transfer via radiation pressure of a photon hopping coupling from the intracavity photon-phonon entanglements to an inter-cavity photon-photon or phonon-phonon entanglement.
description: 11 pages, 4 figures in Int J Theor Phys (2017)
Progress in Silicon Solar Cell Characterization With Infrared Imaging Methods
Creators: name: Kasemann, M.
name: Kwapil, W.
name: Walter, B.
name: Giesecke, J.
name: Michl, B.
name: The, M.
name: Wagner, J.-M.
name: Bauer, J.
name: Schütt, A.
name: Carstensen, J.
name: Kluska, S.
name: Granek, F.
name: Kampwerth, H.
name: Gundel, P.
name: Schubert, M.C.
name: Bardos, R.A.
name: Föll, H.
name: Nagel, H.
name: Wuerfel, P.
name: Trupke, T.
name: Breitenstein, O.
name: Hermle, M.
name: Warta, W.
name: Glunz, S.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; 965-973
description: This paper reviews the latest results in application and development of infrared imaging methods for fast and spatially resolved silicon solar cell characterization. Infrared imaging methods comprise electroluminescence
(EL) imaging, photoluminescence (PL) imaging, and lock-in thermography (LIT). We report on new insights into the nature of local series resistances and important observations on local junction breakdown in industrial multicrystalline
silicon solar cells. Significant improvements have been achieved in the applicability of infrared imaging methods for in-line application in silicon solar cell production. It was demonstrated that quantitative values for local reverse currents in hot-spots can be easily obtained in 10 milliseconds. Quantitative series resistance images were obtained in 800 milliseconds with a good potential to reduce the measurement time to below 500 milliseconds.
Formation Kinetics and Electrical Transport of Silicon Quantum Dot Layers
Creators: name: Stegemann, B.
name: Lussky, T.
name: Schoepke, A.
name: Cermák, J.
name: Rezek, B.
name: Kocka, J.
name: Schmidt, M.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
New Materials, Cells and Modules

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 260-264
description: Two-dimensional layers of Si quantum dots (QDs) are synthesized under ultrahigh vacuum (UHV)
conditions by self-organized growth from thermally deposited SiOx (x < 2) precursor layers, which are
thermodynamically unstable and therefore undergo phase separation upon appropriate in situ post-annealing. QD
density and size are adjusted by variation of the layer thickness and the stoichiometry x, allowing for a tuning of the
quantization energies and of the interlayer transport properties. For all investigated initial compositions (x ranging
from 0.9 to 1.5) and layer thicknesses (3 to 10 nm), phase separation was completed at 850°C. The kinetics of the
thermal decomposition of the constituting suboxides (Sin+, n = 0 … 4) into Si QDs and the surrounding SiO2 matrix
was analyzed in situ by X-ray photoelectron spectroscopy (XPS) as a function of the annealing temperature. The
gradual phase separation revealed by XPS is directly correlated with electrical properties as derived from atomic
force microscopy measurements detecting surface potentials (KFM) and local conductivities (CS-AFM) across
individual QDs.