cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Electric field driven flat bands: Enhanced magnetoelectric and electrocaloric effects in frustrated quantum magnets
Creators: name: Richter, Johannes
name: Ohanyan, Vadim
name: Schulenburg, Jörg
name: Schnack, Jürgen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The $J_1$-$J_2$ quantum spin sawtooth chain is a paradigmatic one-dimensional frustrated quantum spin system exhibiting unconventional ground-state and finite-temperature properties. In particular, it exhibits a flat energy band of one-magnon excitations accompanied by an enhanced magnetocaloric effect for two singular ratios of the basal interactions $J_1$ and the zigzag interactions $J_2$. In our paper, we demonstrate that one can drive the spin system into a flat-band scenario by applying an appropriate electric field, thus overcoming the restriction of fine-tuned exchange couplings $J_1$ and $J_2$ and allowing one to tune more materials towards flat-band physics, that is to show a macroscopic magnetization jump when crossing the magnetic saturation field, a residual entropy at zero temperature as well as an enhanced magnetocaloric effect. While the magnetic field acts on the spin system via the ordinary Zeeman term, the coupling of an applied electric field with the spins is given by the sophisticated Katsura-Nagaosa-Balatsky (KNB) mechanism, where the electric field effectively acts as a Dzyaloshinskii-Moriya spin-spin interaction. The resulting novel features are corresponding reciprocal effects: We find a magnetization jump driven by the electric field as well as a jump of the electric polarization driven by the magnetic field, i.e.\ the system exhibits an extraordinarily strong magnetoelectric effect. Moreover, in analogy to the enhanced magnetocaloric effect the system shows an enhanced electrocaloric effect.
description: 11 pages, 6 figures
Calculation of Series and Shunt Resistance Values of a Solar Cell Using the Lambert W-Function: Experimental Validation
Creators: name: Ghani, F.
name: Duke, M.
name: Carson, J.K.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Characterization and Modelling

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 1200-1203
description: In order to accurately model the behavior of a solar cell, the values of the series and shunt resistances must be found for the device under study. The authors in previous work proposed a new method to find these values at maximum power point using the Newton-Raphson method and current-voltage equations expressed using the Lambert W-function. This method was shown to be accurate and requires only data provided by the manufacturer. In this paper, we present the results of an experimental study carried out to further validate this method and compare values obtained against another method. Using a multi-crystalline cell exposed to outdoor illumination in Hamilton, New Zealand and a precise source measuring unit, the current-voltage curves were obtained at 1000 W/m2 of illumination. Simulated current-voltage curves generated using resistance values calculated from each of the two methods (i.e. proposed and alternative) were compared against the experimental curves. Based on a root mean square analysis over the entire current-voltage curve, the proposed method was found to yield the greatest accuracy.
QED of excitons with nonlocal susceptibility in arbitrary-structured dielectrics
Creators: name: Bamba, Motoaki
name: Ishihara, Hajime
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We have constructed a complete quantum theory for an optical process of excitons with nonlocal susceptibility originating from their center-of-mass motion. This theory provides a practical calculation method for arbitrary-structured nano-to-macro scale dielectrics where excitons are weakly confined. We obtain good correspondences with underlying theories, semiclassical microscopic nonlocal theory, and QED theories for dispersive and absorptive materials with local susceptibility.
description: 23 pages
Active Grid Planning Based on Solar Power Roof Potential Analysis
Creators: name: Ruf, H.
name: Stetter, D.
name: Lanig, S.
name: Hoyer-Klick, C.
name: Meier, F.
name: Heilscher, G.
Publisher: name: WIP
Year: 2012
Subjects: PV Systems
Large PV Power Plants and Distributed PV: System Aspects and Grid Connection

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3782-3787
description: Against the background of an increased penetration of installed PV capacities in low voltage grids
giving rise to reversed load flows in the distribution grids, a thorough understanding of the effects occurring during
high feed-in periods is necessary for active grid planning and management. The present work addresses this issue
proposing an approach for the determination of grid parameters using a solar roof potential analysis, solar radiation
from satellites, a detailed local grid and PV power plant model.. Results from the solar potential analysis are
direction, declination and suitable non shadowed areas of each roof. Solar Irradiance on ground level is derived from
spectral satellite images in a two-step approach. This information is integrated into simulations of single PV systems
in turn yielding input data for grid simulations. allowing for a thorough investigation of the effects of PV systems in a
local low voltage grid. The simulation framework is validated with the measurement data. Furthermore, the influence
of the data quality especially of the solar roof potential analysis and load profile estimation are also assessed.
Synergy Data Analytics: Novel Synergy Score Modeling Analysis Pipeline for Drug-Drug Interactions
Creators: name: SHIQUAN WU
name: Nisebita Sahu
name: Wong, Stephen
name: Dewhurst, Henry
name: Cheung, Leo Wang Kit
name: Hon-Kit  Wong
Publisher: name: F1000 Research Limited
Year: 2021

description: Synergy Data Analytics pipeline introduced in this poster is developed with user friendly web-interfaces for synergy score analyses on drug-drug interactions. The pipeline provides a platform to automatically process and analyze drug-drug interaction experimental raw signal data for investigating either pairwise drugs or multiple drugs together with customized graphs and tables. It consists of five major features:

 (1) Normalize raw signal data for drug-drug interactions into Inhibition/control percentages through flexible input formats in Excel, CSV, tab-delimited TXT, and RData for various designed plates/wells;

 (2) Fit groups of dose-response data by four-parameter log-logistic curves, which achieve better performance than methods that other similar software packages employed;

 (3) Compute synergy scores for drug-drug interactions based on various scoring models: Bliss, Highest Single Agent, and Loewe;

 (4) Create various customized score graphs and tables with user-friendly interactive mouse-over information display of metadata of any data points.

 (5) This pipeline not only allows investigation of pairwise drug-drug interactions when we have more than 2 drugs to be investigated but also allows investigation of synergy of 3 or more drugs simultaneously for large collections of drug combinations whereas other available software packages may only allow pairwise or small collections of drug-drug interactions for control percentage data.
Teleparallel gravity: Effects of torsion in 6D braneworlds
Creators: name: Moreira, A. R. P.
name: Silva, J. E. G.
name: Almeida, C. A. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Braneworld models are interesting theoretical and phenomenological frameworks to search for new physics beyond the standard model of particles and cosmology. In this work, we discuss braneworld models whose gravitational dynamics are governed by teleparallel $f(T)$ gravities. Here, we emphasize a codimension two axisymmetric model, also known as a string-like brane. Likewise, in the 5D domain-walls models, the $f(T)$ gravitational modification leads to a phase transition on the perfect fluid source providing a brane-splitting mechanism. Furthermore, the torsion changes the gravitational perturbations. The torsion produces new potential wells inside the brane core leading to a massless mode more localized around the ring structures. In addition, the torsion keeps a gapless non-localizable and a stable tower of massive modes in the bulk.
description: 15 pages, 11 figures. arXiv admin note: text overlap with arXiv:2006.06891
µPolar : An interactive 2D visualization tool for microscopic time-series images
Creators: name: Meran Ghafari
name: Mailman, Daniel
name: Qin, Hong
Publisher: name: F1000 Research Limited
Year: 2021

description: Time-lapse microscopy is an effective research tool to monitor cell behavior and cell divisions. Recent advances in microfluidics have accelerated the adoption of time-lapse microscopy in research. However, it is challenging to visualize and interpret the time-series data gathered through time-lapse microscopy. We have developed a circular plotting software tool, μPolar, to visualize the trends and patterns of the cell movements and cell division events in a time-series. μPolar is interactive and easy to use. We demonstrate the utility of μPolar by visualizing the events of dividing yeast cells where cell divisions lead to oscillating plotting patterns, and in migrating mouse fibroblasts where cell shapes change during the migration. μPolar potentially could be applied to other types of time-series of
 microscopic images.
Shell-shaped condensates with gravitational sag: contact and dipolar interactions
Creators: name: Arazo, Maria
name: Mayol, Ricardo
name: Guilleumas, Montserrat
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate Bose-Einstein condensates in bubble trap potentials in the presence of a small gravity. In particular, we focus on thin shells and study both contact and dipolar interacting condensates. We first analyze the effects of the anisotropic nature of the dipolar interactions, which already appear in the absence of gravity and are enhanced when the polarization axis of the dipoles and the gravity are slightly misaligned. Then, in the small gravity context, we investigate the dynamics of small oscillations of these thin, shell-shaped condensates triggered either by an instantaneous tilting of the gravity direction or by a sudden change of the gravity strength. This system could be a preliminary stage for realizing a gravity sensor in space laboratories.
description: 18 pages, 9 figures
Cancer patient survival can be accurately parameterized, improving trial precision and revealing time-dependent therapeutic effects
Creators: name: Plana, Deborah
name: Fell, Geoffrey
name: Alexander, Brian M.
name: Palmer, Adam C.
name: Sorger, Peter K.
Publisher: name: F1000 Research Limited
Year: 2021

description: Individual participant data (IPD) from oncology clinical trials represent an invaluable source of information for identifying factors that influence trial success and failure, improving trial design and interpretation, and comparing pre-clinical studies to clinical outcomes. However, the IPD used to generate published survival curves are not generally available. We imputed survival IPD from ~500 arms of Phase 3 oncology trials (representing ~220,000 events) and found that they are well fit by a two-parameter Weibull distribution. This finding supports the use of parametric statistics to increase trial precision with small patient cohorts typical of Phase 1 and 2 trials. We also show that frequent violations of the proportional hazards assumption, particularly in Phase 3 trials of immune checkpoint inhibitors, arise from time-dependent therapeutic effects. Trial duration therefore has an underappreciated impact on the likelihood of success. All imputed IPD and analysis are available as supplementary materials and via the website https://cancertrials.io./
The Sensitivity of LCOE to PV Technology Including Degradation, Seasonal Annealing, Spectral and Other Effects
Creators: name: Ransome, S.
name: Sutterlueti, J.
Publisher: name: WIP
Year: 2012
Subjects: Components for PV Systems
Standardisation

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3082-3087
description: The “levelised cost of energy” (LCOE) [1] estimates the cost in ¢/kWh over the lifetime of a system including initial investments, operation and maintenance etc. Many LCOE studies seem to analyse the costs and finance well but do not tend to simulate the PV technology dependent energy generation at such a detailed level. This work models the relative “(energy yield difference)/(cost of product change)” for many sites worldwide as changes in terms of understandable values [2] such as reducing NOCT (nominal operating cell temperature) which could be lowered by a process with quantifiable additional costs such as adding cooling fins to the back of a module. It also
allows the differences between PV technologies (e.g. seasonal annealing, spectral response, degradation etc.) to be modelled which was so far not included in [2]. It is shown that the soiling behaviour dominates the cost in regions with long periods without rainfall, seasonal annealing has a large effect (up to 11% in hot climates if the annealing rate is+0.4%/K) made but this depends on how the initial Pmax declaration is (i.e. whether the module is preconditioned to the outdoor metastable state and whether this is higher, similar or lower than indoor
measurements). Changes in the lifetime of the PV and Inverter are shown to allow an increase in ASP (average selling price) of 2:1 for the longest lifetimes and a decrease in ASP to 44% default for the shortest lifetimes studied .(for the same default c/kWh )
First observation of KL -> pi+- e-+ nu e+ e-
Creators: name: KTeV Collaboration
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This letter is the first report of the KL -> pi+- e-+ nu e+ e- decay. Based on 19208+-144 events, we determine the branching fraction, B(KL -> pi+- e-+ nu e+ e-; Mee > 5 MeV/c^2, E*ee > 30 MeV) = (1.285+-0.041)x10^-5, and Gamma(Ke3ee; Mee >5 MeV/c^2) / Gamma(Ke3) = [4.57+-0.04(stat)+-0.14(syst)]x10^-5. This ratio agrees with a theoretical prediction based on chiral perturbation theory (ChPT) calculated to O(p^4). The measured kinematical distributions agree with those predicted by just ChPT O(p^4), but show significant disagreement with ones predicted by leading order ChPT.
description: 5 pages, 4 figures
Unsupervised empirical Bayesian multiple testing with external covariates
Creators: name: Ferkingstad, Egil
name: Frigessi, Arnoldo
name: Rue, Håvard
name: Thorleifsson, Gudmar
name: Kong, Augustine
Publisher: name: arXiv
Year: 2008
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: In an empirical Bayesian setting, we provide a new multiple testing method, useful when an additional covariate is available, that influences the probability of each null hypothesis being true. We measure the posterior significance of each test conditionally on the covariate and the data, leading to greater power. Using covariate-based prior information in an unsupervised fashion, we produce a list of significant hypotheses which differs in length and order from the list obtained by methods not taking covariate-information into account. Covariate-modulated posterior probabilities of each null hypothesis are estimated using a fast approximate algorithm. The new method is applied to expression quantitative trait loci (eQTL) data.
description: Published in at http://dx.doi.org/10.1214/08-AOAS158 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Equilibrium-like behavior in far-from-equilibrium chemical reaction networks
Creators: name: Lubensky, David K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: In an equilibrium chemical reaction mixture, the number of molecules present obeys a Poisson distribution. We ask when the same is true of the steady state of a nonequilibrium reaction network and obtain an essentially complete answer. In particular, we show that networks with certain topological features must have a Poisson distribution, whatever the reaction rates. Such driven systems also obey an analog of the fluctuation-dissipation theorem. Our results may be relevant to biological systems and to the larger question of how equilibrium concepts might apply to nonequilibrium systems.
description: 5 pages, 2 figures; brief discussion of non-mass-action kinetics added
Coherent Control of Ultrafast Bond Making and Subsequent Molecular Dynamics: Demonstration of Final-State Branching Ratio Control
Creators: name: Levin, Liat
name: Reich, Daniel M.
name: Geva, Moran
name: Kosloff, Ronnie
name: Koch, Christiane P.
name: Amitay, Zohar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Quantum coherent control of ultrafast bond making and the subsequent molecular dynamics is crucial for the realization of a new photochemistry, where a shaped laser field is actively driving the chemical system in a coherent way from the thermal initial state of the reactants to the final state of the desired products. We demonstrate here coherent control over the relative yields of Mg$_2$ molecules that are generated via photoassociation and subsequently photodriven into different groups of final states. The strong-field process involves non-resonant multiphoton femtosecond photoassociation of a pair of thermally hot magnesium atoms into a bound Mg$_{2}$ molecule and subsequent molecular dynamics on electronically excited states. The branching-ratio control is achieved with linearly chirped laser pulses, utilizing the different chirp dependence that various groups of final molecular states display for their post-pulse population. Our study establishes the feasibility of high degree coherent control over quantum molecular dynamics that is initiated by femtosecond photoassociation of thermal atoms.
Impact of Increasing Photovoltaic Energy Penetration on the Distribution Grid
Creators: name: Ruf, H.
name: Heilscher, G.
name: Meier, F.
name: Mayer, O.
name: Grottke, M.
Publisher: name: WIP
Year: 2012
Subjects: PV - a Major Electricity Source
PV in the Electricity Mix

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 4534-4538
description: The high rate of decentralized generation in low voltage grids especially photovoltaic (PV) put the
distribution grid operators to new challenges. Grid operation and grid planning have to respect the volatility and
dynamic of decentralized generation now and in the future and adapt their previous proceedings. In the frame of the
project Smart Solar Grid a test site was defined in the control area of the DSO (Distribution System Operator)
Stadtwerke Ulm/Neu-Ulm GmbH (SWU) to analyze the impact of increasing PV installations and possible solutions
for future grid planning.
The first analysis is based on secondly measurements of the first test site. From this statistical evaluation of the load
flows and power variations were done. Furthermore the roof potential analysis results of the test site were validated.
These data are the base for the development of a forecast system for gird condition parameter.
Generalized coherent states of exceptional Scarf-I potential: Their spatio-temporal and statistical properties
Creators: name: Shreecharan, T.
name: Ranjani, S. Sree
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81Q60, 81R30

description: We construct generalized coherent states for the rationally extended Scarf-I potential. Statistical and geometrical properties of these states are investigated. Special emphasis is given to the study of spatio-temporal properties of the coherent states via the quantum carpet structure and the auto-correlation function. Through this study, we aim to find the signature of the `"rationalisation" of the conventional potentials and the classical orthogonal polynomials.
description: 33 figures. Accepted for publication in Reviews in Mathematical Physics
Performance of Champion Module's of PV Lighting Systems in India
Creators: name: Sinha, A.
name: Sastry, O.S.
name: Singh, Y.K.
name: Kumar, M.
name: Gupta, R.
Publisher: name: WIP
Year: 2012
Subjects: Components for PV Systems
PV Modules

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3507-3510
description: Use of Solar Photovoltaic (SPV) for Street Lighting Systems (SLS) is an ideal application of SPV for
illumination of streets and crossroads located in areas that are not connected to the power grid. This paper presents
the performance and degradation analysis of two pairs of the Champion PV modules which were used for SLS
installed at Solar Energy Centre, India during the year 1990. These PV modules have experienced minimal
degradation in their power output even after operating for 21 years. The power loss observed in all modules is less
than 10%, which is less than the specified level in IEC 61215 standard. These modules showed unique behavior and
the most surprising aspect is that only one of the modules in each pair is affected by browning inspite of installed at
same location and under similar environmental conditions. A detailed investigation has been performed by using the
I-V measurement and characterization techniques like Lock-in thermography and Electroluminescence imaging.
Additional file 2 of SERPINB10 contributes to asthma by inhibiting the apoptosis of allergenic Th2 cells
Creators: name: Mo, Yuqing
name: Ye, Ling
name: Cai, Hui
name: Zhu, Guiping
name: Wang, Jian
name: Zhu, Mengchan
name: Song, Xixi
name: Yang, Chengyu
name: Jin, Meiling
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 2. The protocol of RT-qPCR and Western blotting.
On embeddedness of area-minimizing disks, and an application to constructing complete minimal surfaces
Creators: name: Rossman, Wayne
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A10; 53A05; 53C42

description: Let $α$ be a polygonal Jordan curve in $\bfR^3$. We show that if $α$ satisfies certain conditions, then the least-area Douglas-Radó disk in $\bfR^3$ with boundary $α$ is unique and is a smooth graph. As our conditions on $α$ are not included amongst previously known conditions for embeddedness, we are enlarging the set of Jordan curves in $\bfR^3$ which are known to be spanned by an embedded least-area disk. As an application, we consider the conjugate surface construction method for minimal surfaces. With our result we can apply this method to a wider range of complete catenoid-ended minimal surfaces in $\bfR^3$.
Effects of Electric Field and Illumination on Implied Voc
Creators: name: Song, L.
name: Lu, P.H.D.
name: Mitchell, E.
name: Lennon, A.J.
name: Wenham, S.R.
Publisher: name: WIP
Year: 2012
Subjects: Material Studies, New Concepts and Ultra-High Efficiency
Fundamental Material Studies

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 524-526
description: High quality passivation is of significant importance for high performance c-Si solar cells, while low temperature
processes are also desirable for making today’s high performance solar cells. This paper explores the role of electric
fields and illumination on the passivation of FZ wafers using photoconductance lifetime and capacitance-voltage (CV)
measurements.
It was found that an anodic aluminium oxide (AAO) film, formed on an SiNx layer by an electrochemical anodisation
process, can increase the effective lifetime of the p-type FZ wafers. Experiments were performed to investigate the
roles of the applied electric field and illumination on the effective lifetime of the wafers. The results of C-V
measurements suggest that the increased lifetime may be due to passivation of interface states at the SiNx/Si interface.
Path integral derivations of novel complex trajectory methods
Creators: name: Schiff, Jeremy
name: Goldfarb, Yair
name: Tannor, David J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Path integral derivations are presented for two recently developed complex trajectory techniques for the propagation of wave packets, Complex WKB and BOMCA. Complex WKB is derived using a standard saddle point approximation of the path integral, but taking into account the hbar dependence of both the amplitude and the phase of the intial wave function, thus giving rise to the need for complex classical trajectories. BOMCA is derived using a modification of the saddle point technique, in which the path integral is approximated by expanding around a near-classical path, chosen so that up to some predetermined order there is no need to add any correction terms to the leading order approximation. Both Complex WKB and BOMCA give the same leading order approximation; in Complex WKB higher accuracy is achieved by adding correction terms, while in BOMCA no additional terms are ever added -higher accuracy is achieved by changing the path along which the original approximation is computed. The path integral derivation of the methods explains the need to incorporate contributions from more than one trajectory, as observed in previous numerical work. On the other hand, it emerges that the methods provide efficient schemes for computing the higher order terms in the asymptotic evaluation of path integrals. The understanding we develop of BOMCA suggests that there should exist near-classical trajectories that give exact quantum dynamical results when used in the computation of the path integral keeping just the leading order term. We also apply our path integral techniques to give a compact derivation of the semiclassical approximation to the coherent state propagator.
description: 41 pages; references and citations were corrupted in first two versions, sorry
Industrially Feasible Rear Passivation and Contact Scheme for High Efficiency Crystalline Silicon Solar Cells on p-Type CZ Substrate
Creators: name: Li, H.
name: Wenham, S.R.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 883-887
description: For the purpose of manufacturing high efficiency crystalline silicon solar cells with a passivated rear surface and local contacts, a thermally stable passivating system of plasma-enhanced chemical vapor deposition (PECVD) deposited a-Si:H/SiNx:H stack was developed in this work. Effective carrier lifetime (eff) of 1.08ms and 0.8ms were demonstrated on 4.5ohm.cm CZ silicon substrates with textured surface and planar surface respectively. An upper-bound for the effective surface recombination velocity (Seff) of 5.8cm/s was measured and calculated using a 1ohm.cm FZ control sample. Good thermal stability capable of withstanding over 90min thermal annealing at 400°C suggested the compatibility of this stack passivating system to a metal contacting scheme that requires relatively low sintering temperatures. Local back surface field (LBSF) point contacts with effective recombination velocity of 4800±400 cm/s were formed by laser-doping (LD) technique with optimized laser parameters on test wafers. The application of the optimized a-Si:H/SiNx:H rear surface passivating stack and high quality LBSF formed by LD technique results in passivated emitter and rear locally diffused (PERL) cells with efficiency of up to 19.9%
on a 13cm2 industrial B-doped CZ silicon wafer.
Coronal Neutrino Emission in Hypercritical Accretion Flows
Creators: name: Kawabata, R.
name: Mineshige, S.
name: Kawanaka, N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Hypercritical accretion flows onto stellar mass black holes (BHs) are commonly considered as a promising model of central engines of gamma-ray bursts (GRBs). In this model a certain fraction of gravitational binding energy of accreting matter is deposited to the energy of relativistic jets via neutrino annihilation and/or magnetic fields. However, some recent studies have indicated that the energy deposition rate by neutrino annihilation is somewhat smaller than that needed to power a GRB. To overcome this difficulty, Ramirez-Ruiz & Socrates (2005) proposed that high energy neutrinos from hot corona above the accretion disk might enhance the efficiency of energy deposition. We elucidate the disk corona model in the context of hypercritical accretion flows. From the energy balance in the disk and the corona, we can calculate the disk and coronal temperature, Td and Tc, and neutrino spectra, taking into account the neutrino cooling processes by neutrino-electron scatterings and neutrino pair productions. The calculated neutrino spectra consist of two peaks; one by the neutrino emission from the disk and the other by that from the corona. We find that the disk corona can enhance the efficiency of energy release but only by a factor of 1.5 or so, unless the height of the corona is very small, H<
description: 23 pages, 7 figures, submitted to the Astrophysical Journal
Kepler Problem in the Constant Curvature Space
Creators: name: Pronko, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We present algebraic derivation of the result of Schrödinger [1] for the spectrum of hydrogen atom in the space with constant curvature.
description: 11 pages
The power of reciprocal knowledge sharing relationships for startup success
Creators: name: Allen, T. J.
name: Gloor, P.
name: Colladon, A. Fronzetti
name: Woerner, S. L.
name: Raz, O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: J.4

description: Purpose: The purpose of this paper is to examine the innovative capabilities of biotech start-ups in relation to geographic proximity and knowledge sharing interaction in the R&D network of a major high-tech cluster. Design-methodology-approach: This study compares longitudinal informal communication networks of researchers at biotech start-ups with company patent applications in subsequent years. For a year, senior R&D staff members from over 70 biotech firms located in the Boston biotech cluster were polled and communication information about interaction with peers, universities and big pharmaceutical companies was collected, as well as their geolocation tags. Findings: Location influences the amount of communication between firms, but not their innovation success. Rather, what matters is communication intensity and recollection by others. In particular, there is evidence that rotating leadership - changing between a more active and passive communication style - is a predictor of innovative performance. Practical implications: Expensive real-estate investments can be replaced by maintaining social ties. A more dynamic communication style and more diverse social ties are beneficial to innovation. Originality-value: Compared to earlier work that has shown a connection between location, network and firm performance, this paper offers a more differentiated view; including a novel measure of communication style, using a unique data set and providing new insights for firms who want to shape their communication patterns to improve innovation, independently of their location.
Comments on gap anisotropy and nodal constant Fermi velocity in a superconductor, BSCCO
Creators: name: Kim, Hyun-tak
name: Kim, Bong-jun
name: Kang, Kwang-yong
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: On the basis of both the inhomogeneity of a superconductor, BSCCO-2212, and the effect of measurement, we reveal that an anomalously large gap anisotropy known as evidence of dx2-y2-wave symmetry [Phys. Rev. Lett. 70 (1993) 1553] is not intrinsic, and that the constant Fermi velocity at node as an unsolved problem [Nature 423 (2003) 398] is due to the dx2-y2-wave insulator-metal transition.
description: 2 pages, 2 figures
Variational methods for characterizing matrix product operator symmetries
Creators: name: Francuz, Anna
name: Lootens, Laurens
name: Verstraete, Frank
name: Dziarmaga, Jacek
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a method of extracting information about topological order from the ground state of a strongly correlated two-dimensional system represented by an infinite projected entangled pair state (iPEPS). As in Phys. Rev. B 101, 041108 (2020) and 102, 235112 (2020) we begin by determining symmetries of the iPEPS represented by infinite matrix product operators (iMPO) that map between the different iPEPS transfer matrix fixed points, to which we apply the fundamental theorem of MPS to find zipper tensors between products of iMPO's that encode fusion properties of the anyons. The zippers can be combined to extract topological $F$-symbols of the underlying fusion category, which unequivocally identify the topological order of the ground state. We bring the $F$-symbols to the canonical gauge, as well as compute the Drinfeld center of this unitary fusion category to extract the topological $S$ and $T$ matrices encoding mutual- and self-statistics of the emergent anyons. The algorithm is applied to Abelian toric code, double semion and twisted quantum double of $Z_3$, as well as to non-Abelian double Fibonacci, double Ising, and quantum double of $S_3$ and ${\rm Rep}(S_3)$ string net models.
Electrochemical Growth from Metal Precursors and High Vacuum Synthesis of CuInS2 Semiconducting Absorbent Layer
Creators: name: Hurtado-Morales, M.F.
name: Chamorro, W.
name: Rodríguez, O.
Publisher: name: WIP
Year: 2012
Subjects: Thin Film Solar Cells
CdTe, CIS and Related Ternary and Quaternary Thin Film Solar Cells

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 2263-2265
description: CuInS2 films have been prepared by two-step process 1) Cyclic voltammetry electrodeposition of Copper and
Indium layers on soda-lime glass covered of ITO and FTO, and 2) Sulfur evaporation in a high vacuum reactor. The
bimetallic thin films with Cu/In = 0,98 and Cu/In = 0,49 molar ratios were annealed in a sulfur atmosphere at 300 ºC for
90 min to improve the film crystalline properties. The sulfurization of Copper and Indium stack produce CuInS2.
Synthesized thin films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic
force microscopy (AFM) and spectral transmittance. The results indicate that CuInS2 thin films have chalcopyrite
structure, the grain size varies 0,48 m in ITO (In2O3:Sn) substrate and 0,98 m in FTO (SnO2:F). All CuInS2 thin films
showed a Band gap around 1,53 eV, optimal value to be used as semiconducting absorbent layer in solar cell devices.
Thin-film radiative thermal diode with large rectification
Creators: name: Li, Qizhang
name: He, Haiyu
name: Chen, Qun
name: Song, Bai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose a mechanism to substantially rectify radiative heat flow by matching thin films of metal-to-insulator transition materials and polar dielectrics in the electromagnetic near field. By leveraging the distinct scaling behaviors of the local density of states with film thickness for metals and insulators, we theoretically achieve rectification ratios over 140-a 10-fold improvement over the state of the art-with nanofilms of vanadium dioxide and cubic boron nitride in the parallel-plane geometry at experimentally feasible gap sizes (~100 nm). Our rational design offers relative ease of fabrication, flexible choice of materials, and robustness against deviations from optimal film thicknesses. We expect this work to facilitate the application of thermal diodes in solid-state thermal circuits and energy conversion devices.
Aufbau eines FDM-Angebotes (an einer wiss. Bibliothek) "von Null" angefangen.
Creators: name: Strauch-Davey, Annette
Publisher: name: Zenodo
Year: 2021
Subjects: FDM
Forschungsdaten
Forschungsdatenmanagement
FDM-Community

description: Aufbau eines FDM als forschungsnaher Dienst.
Stopping powers of LiF thin films deposited onto self-supporting Al foils for swift protons
Creators: name: Damache, Smail
name: Moussa, Djamel
name: Ouichaoui, Saad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The energy losses of ~(0.273-3.334) MeV protons in Lithium Fluoride thin films deposited by vacuum evaporation onto self-supporting Al foils have been measured using the transmission method. The thicknesses of selected and used Lithium Fluoride/Al target samples were accurately determined via systematic energy loss measurements for alpha particles from a very thin mixed 241Am/239Pu/233U radioactive source. The samples were investigated in detail for their stoichiometry and their impurity contents by backscattering Rutherford spectrometry and nuclear reaction analysis. Then, Lithium Fluoride stopping powers have been determined with overall relative uncertainty of less than 2.7% arising mainly from errors in the determination of target sample thicknesses. These S(E) data are reported and discussed in comparison to previous experimental data sets from the literature and to values calculated by the Sigmund-Schinner binary collision stopping theory both for molecular Lithium Fluoride and for the Lithium Fluoride compound assuming the Bragg's additivity rule. Our S(E) data show to be in excellent agreement with the latter theory for molecular Lithium Fluoride over the whole proton energy range explored, which supports the use of modified hydrogenic wave functions for evaluating atomic shell corrections in the case of low-Z2 target materials. In contrast, they exhibit a slightly increasing deviation from theoretical values derived for the Lithium Fluoride compound with assuming stopping force additivity as the proton energy decreases from ~400 Kev towards lower proton velocities.
description: 31 pages, 8 figures. Nuclear Instruments and Methods in Physics Research B (2013)
Spin-Torque-Induced Rotational Dynamics of a Magnetic Vortex Dipole
Creators: name: Finocchio, G.
name: Ozatay, O.
name: Torres, L.
name: Buhrman, R. A.
name: Ralph, D. C.
name: Azzerboni, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study, both experimentally and by numerical modeling, the magnetic dynamics that can be excited in a magnetic thin-film nanopillar device using the spin torque from a spatially localized current injected via a 10s-of-nm-diameter aperture. The current-driven magnetic dynamics can produce large amplitude microwave emission at zero magnetic field, with a frequency well below that of the uniform ferromagnetic resonance mode. Micromagnetic simulations indicate that the physical origin of this efficient microwave nano-oscillator is the nucleation and subsequent steady-state rotational dynamics of a magnetic vortex dipole driven by the localized spin torque. These results show this novel implementation of a spintronic nano-oscillator is a promising candidate for microwave technology applications.
description: 19 pages, 4 figures,
Additional file 1 of FGFR1 amplification or overexpression and hormonal resistance in luminal breast cancer: rationale for a triple blockade of ER, CDK4/6, and FGFR1
Creators: name: Mouron, Silvana
name: Manso, Luis
name: Caleiras, Eduardo
name: Rodriguez-Peralto, Jose L.
name: Rueda, Oscar M.
name: Caldas, Carlos
name: Colomer, Ramon
name: Quintela-Fandino, Miguel
name: Bueno, Maria J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Hematology

description: Additional file 1.
Generalized bases of finite groups
Creators: name: Sambale, Benjamin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Group Theory (math.GR)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Motivated by recent results on the minimal base of a permutation group, we introduce a new local invariant attached to arbitrary finite groups. More precisely, a subset Delta of a finite group G is called a p-base (where p is a prime) if Delta generates a p-group and C_G(Delta) is p-nilpotent. Building on results of Halasi-Maróti, we prove that p-solvable groups possess p-bases of size 3 for every prime p. For other prominent groups we exhibit p-bases of size 2. In fact, we conjecture the existence of p-bases of size 2 for every finite group. Finally, the notion of p-bases is generalized to blocks and fusion systems.
description: 8 pages, appears in Arch. Math
Topological Amplitudes in Heterotic Strings with Wilson Lines
Creators: name: Weiss, Marlene
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider d=4, N=2 compactifications of heterotic strings with an arbitrary number of Wilson lines. In particular, we focus on known chains of candidate heterotic/type II duals. We give closed expressions for the topological amplitudes F^g in terms of automorphic forms of SO(2+k,2,Z), and find agreement with the geometric data of the dual K3 fibrations wherever those are known.
description: 34 pages, 8 figures; typos corrected, references added
Controlled Environment Test Laboratory for Comfort Performance Studies on Façade-Integrated BIPV
Creators: name: Polo López, C.S.
name: Tenconi, L.
name: Lo Castro, F.
name: Brambillasca, S.
name: Neila Gonzalez, F.J.
name: Caamaño-Martín, E.
name: Frontini, F.
Publisher: name: WIP
Year: 2012
Subjects: PV Systems
PV and Architecture

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 4335-4339
description: The influence of different façade integrated photovoltaic solutions on the building energy consumption
is not easy to assess under real operating conditions. Thermal aspects, inside temperatures or luminance level that can
be expected using building integrated PV (BIPV) modules are not well-known. The BIPV Env-lab “BIPV Controlled
Environment Test Laboratory” project aims to analyze the whole set of issues that influence the global energy
consumption in a building that use BIPV modules. Issues to be analyzed are comfort aspect (thermal and lighting
aspects), energy consumption, electricity production, electrical behavior of PV modules and PV systems for vertical
integration. Integrated photovoltaic components and the use of renewable energy is already a standard for reducing
power consumption, but would also be important to know the possible contribution on the comfort and health of
building occupants. This work presents the specific design of the test facility and the methodology employed for
BIPV testing in a real context and weather conditions.
Poincaré maps and suspension flows: a categorical remark
Creators: name: Suda, Tomoharu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Poincaré maps and suspension flows are examples of fundamental constructions in the study of dynamical systems. This study aimed to show that these constructions define an adjoint pair of functors if categories of dynamical systems are suitably set. First, we consider the construction of Poincaré maps in the category of flows on topological manifolds, which are not necessarily smooth. We show that well-known results can be generalized and the construction of Poincaré maps is functorial, if a category of flows with global Poincaré sections is adequately defined. Next, we consider the construction of suspension flows and its functoriality. Finally, we consider the adjointness of the constructions of Poincaré maps and suspension flows. By considering the naturality, we can conclude that the concepts of topological equivalence or topological conjugacy of flows are not sufficient to describe the correspondence between map dynamical systems and flows with global Poincaré sections. We define another category of flows with global Poincaré sections and show that the suspension functor and the Poincaré map functor form an adjoint equivalence if these categories are considered. Hence, a categorical correspondence between map dynamical systems and flows with global Poincaré sections is obtained. This will enable us to better understand the connection between map dynamical systems and flows.
description: 18pages, to appear in Dynamical Systems under the title "A categorical view of Poincar\'e maps and suspension flows"
Additional file 2 of FGFR1 amplification or overexpression and hormonal resistance in luminal breast cancer: rationale for a triple blockade of ER, CDK4/6, and FGFR1
Creators: name: Mouron, Silvana
name: Manso, Luis
name: Caleiras, Eduardo
name: Rodriguez-Peralto, Jose L.
name: Rueda, Oscar M.
name: Caldas, Carlos
name: Colomer, Ramon
name: Quintela-Fandino, Miguel
name: Bueno, Maria J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Hematology

description: Additional file 2.
Spatially Resolved Luminescence Imaging of All Essential Silicon Solar Cell Parameters
Creators: name: Shen, C.
name: Kampwerth, H.
name: Green, M.A.
name: Trupke, T.
name: Carstensen, J.
name: Schütt, A.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Characterization and Modelling

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 852-856
description: Luminescence based determination of spatially resolved solar cell parameters is a hot topic in recent
years. In this article, a method to produce the images of solar cell efficiency and other important parameters is
presented, including voltage, current density, series resistance, dark saturation current densities of a two diode model,
power density and fill factor. The algorithm gives this set of self-consistent parameters by using a minimum of five
electrical biased photoluminescence images.