cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Evolution of Slurry Grit Properties during Multi Wire Wafering of Silicon Bricks
Creators: name: Dalaker, H.
name: Armada, S.
name: Halvorsen, T.
name: Kaminski, S.
name: Moen, M.
name: Runde, P.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Feedstock, Crystallisation and Wafering

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 789-793
description: Using an industrial scale multi wire saw set up, the evolution of the slurry grit in the wafering process
has been investigated. Two series of cuts have been performed with different slurry grits, each slurry batch being
used for several consecutive cuts during which slurry samples have been extracted. The saw has been modified to
allow for the in situ sampling of the slurry immediately in front of, and at the rear of, the brick that is being wafered.
The slurry samples have been analysed for shape and size parameters, allowing conclusions to be drawn about the
effect on the grit of a single pass through the sawing channel, as well as the overall evolution through the cuts.
Near-IR Type Ia SN distances: host galaxy extinction and mass-step corrections revisited
Creators: name: Johansson, J.
name: Cenko, S. B.
name: Fox, O. D.
name: Dhawan, S.
name: Goobar, A.
name: Stanishev, V.
name: Butler, N.
name: Lee, W. H.
name: Watson, A. M.
name: Fremling, U. C.
name: Kasliwal, M. M.
name: Nugent, P. E.
name: Petrushevska, T.
name: Sollerman, J.
name: Yan, L.
name: Burke, J.
name: Hosseinzadeh, G.
name: Howell, D. A.
name: McCully, C.
name: Valenti, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present optical and near-infrared (NIR, $YJH$-band) observations of 42 Type Ia supernovae (SNe Ia) discovered by the untargeted intermediate Palomar Transient Factory (iPTF) survey. This new data-set covers a broad range of redshifts and host galaxy stellar masses, compared to previous SN Ia efforts in the NIR. We construct a sample, using also literature data at optical and NIR wavelengths, to examine claimed correlations between the host stellar masses and the Hubble diagram residuals. The SN magnitudes are corrected for host galaxy extinction using either a global total-to-selective extinction ratio, $R_V$=2.0 for all SNe, or a best-fit $R_V$ for each SN individually. Unlike previous studies which were based on a narrower range in host stellar mass, we do not find evidence for a "mass-step", between the color- and stretch-corrected peak $J$ and $H$ magnitudes for galaxies below and above $\log(M_{*}/M_{\odot}) = 10$. However, the mass-step remains significant ($3σ$) at optical wavelengths ($g,r,i$) when using a global $R_V$, but vanishes when each SN is corrected using their individual best-fit $R_V$. Our study confirms the benefits of the NIR SN Ia distance estimates, as these are largely exempted from the empirical corrections dominating the systematic uncertainties in the optical.
description: 20 pages, 13 figures. Submitted to ApJ. Comments are welcome!
An Algorigtm for Singular Value Decomposition of Matrices in Blocks
Creators: name: Huertas-Rosero, Alvaro Francisco
Publisher: name: arXiv
Year: 2008
Subjects: subject: Numerical Analysis (math.NA)
subject: Information Retrieval (cs.IR)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 15A18

description: Two methods to decompose block matrices analogous to Singular Matrix Decomposition are proposed, one yielding the so called economy decomposition, and other yielding the full decomposition. This method is devised to avoid handling matrices bigger than the biggest blocks, so it is particularly appropriate when a limitation on the size of matrices exists. The method is tested on a document-term matrix (17780x3204) divided in 4 blocks, the upper-left corner being 215x215.
description: 14 pages, 8 figures. Technical Report Replacement with updated reference of publication
Substantial Improvement in the Front Contact Resistance of Screen-Printed Silicon Wafer Solar Cells after a Brief Light-Induced Silver Plating Step
Creators: name: Khanna, A.
name: Cunnusamy, J.
name: Lin, F.
name: Aberle, A.G.
name: Mueller, T.
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; 1696-1699
description: Light-induced plating of silver (Ag LIP) is a well-known method to thicken the front electrode of
silicon wafer solar cells to lower gridline resistance. In this paper we investigate the effect of a brief Ag LIP step on
the contact resistance of fired screen-printed contacts on moderately doped POCl3 diffused and lightly doped ionimplanted
phosphorus emitters. Using the transfer length method (TLM) it is observed that the front contact
resistance on POCl3 diffused 70 Ω/sq emitters reduces drastically due to a brief Ag LIP step. This is further applied
on ion-implanted n+ emitters with a surface dopant concentration of (A) 1x1020 cm-3, (B) 9x1019 cm-3 and (C) 7x1019
cm-3. TLM measurements on fired screen-printed contacts on all three ion-implanted emitters gave poor linear fits,
from which we conclude that ohmic contacts were not formed during the firing step of the screen-printed contacts.
However, on repeating the TLM measurements after an additional brief Ag LIP step on these samples, specific
contact resistivity of the order of 1 mΩcm2 was obtained, indicating that high-quality contacts were formed. Cells
with the type-A ion-implanted emitter showed large improvements in fill factor due to the brief Ag LIP step,
confirming the significant improvement in contact resistance. This effect can be particularly useful for making highquality
contacts to low surface dopant concentration n+ emitters without the need for additional selective-emitter
process steps.
Additional file 2 of The association of childhood adversities and mental health problems with dual-harm in individuals with serious aggressive behaviors
Creators: name: Huang, Ying
name: Zhang, Simei
name: Zhong, Shaoling
name: Gou, Ningzhi
name: Sun, Qiaoling
name: Guo, Huijuan
name: Lin, Ruoheng
name: Guo, Weilong
name: Chen, Hui
name: Wang, Jizhi
name: Zhou, Jiansong
name: Wang, Xiaoping
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: Additional file 2.
A numerical method for the simulation of viscoelastic fluid surfaces
Creators: name: de Kinkelder, Eloy
name: Sagis, Leonard
name: Aland, Sebastian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Viscoelastic surface rheology plays an important role in multiphase systems. A typical example is the actin cortex which surrounds most animal cells. It shows elastic properties for short time scales and behaves viscous for longer time scales. Hence, realistic simulations of cell shape dynamics require a model capturing the entire elastic to viscous spectrum. However, currently there are no numerical methods to simulate deforming viscoelastic surfaces. Thus models for the cell cortex, or other viscoelastic surfaces, are usually based on assumptions or simplifications which limit their applicability. In this paper we develop a first numerical approach for simulation of deforming viscoelastic surfaces. To this end, we derive the surface equivalent of the upper convected Maxwell model using the GENERIC formulation of nonequilibrium thermodynamics. The model distinguishes between shear dynamics and dilatational surface dynamics. The viscoelastic surface is embedded in a viscous fluid modelled by the Navier-Stokes equation. Both systems are solved using Finite Elements. The fluid and surface are combined using an Arbitrary Lagrange-Eulerian (ALE) Method that conserves the surface grid spacing during rotations and translations of the surface. We verify this numerical implementation against analytic solutions and find good agreement. To demonstrate its potential we simulate the experimentally observed tumbling and tank-treading of vesicles in shear flow. We also supply a phase-diagram to demonstrate the influence of the viscoelastic parameters on the behaviour of a vesicle in shear flow. Finally, we explore cytokinesis as a future application of the numerical method by simulating the start of cytokinesis using a spatially dependent function for the surface tension.
The Anomalous 21-cm Absorption at High Redshifts
Creators: name: Melia, Fulvio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The EDGES collaboration has reported the detection of a global 21-cm signal with a plateau centered at 76 MHz (i.e., redshift 17.2), with an amplitude of 500^(+200)_(-500) mK. This anomalous measurement does not comport with standard cosmology, which can only accommodate an amplitude < 230 mK. Nevertheless, the line profile's redshift range (15 < z < 20) suggests a possible link to Pop III star formation and an implied evolution out of the `dark ages.' Given this tension with the standard model, we here examine whether the observed 21-cm signal is instead consistent with the results of recent modeling based on the alternative Friedmann-Lemaitre-Robertson-Walker cosmology known as the R_h=ct universe, showing that--in this model--the CMB radiation might have been rethermalized by dust ejected into the IGM by the first-generation stars at redshift z < 16. We find that the requirements for this process to have occurred would have self-consistently established an equilibrium spin temperature T_s~3.4 K in the neutral hydrogen, via the irradiation of the IGM by deep penetrating X-rays emitted at the termination shocks of Pop III supernova remnants. Such a dust scenario has been strongly ruled out for the standard model, so the spin temperature (~3.3 K) inferred from the 21-cm absorption feature appears to be much more consistent with the R_h=ct profile than that implied by LCDM, for which adiabatic cooling would have established a spin temperature T_s(z=17.2)~6 K.
description: 9 pages, 1 figure. Accepted for publication in EPJ-C
title: Assessing the use of chemical inputs in UK agriculture and its impact on farm productivity and labour requirements
Creators: name: Henderson, Stuart Ian
Publisher: name: University of Kent
Year: 2024

description: Agricultural policy is shifting in England to a model based on public money for public goods. Chapter 2 assesses the broader socio-economic effects at the territorial level of farms adopting ecological approaches to farming. These ecological approaches are growing in popularity and include low-input, organic, regenerative, conservation and agroecological farming. This chapter explores their potential growth over the next decade in two heterogeneous regions of South East England, namely North Kent and the High Weald. Q-methodology and Delphi Exercise are two stakeholder based approaches used to investigate the perspectives of different groups of farming related stakeholders. Results emphasise that there will need to be an increase in the skill level of the farm workforce in order to facilitate changes in farm practices. Therefore, policy may want to address the provision of education and experience as well as sourcing migrant labour depending on the farming context.
Chapter 3 estimates Total Factor Productivity (TFP) in a Cobb-Douglas production function framework. The estimation strategy applies generalised method of moments accounting for the use of chemical inputs which is absent in previous GMM estimations of TFP in the literature. Data is used from the Farm Accountancy Data Network for cereal crop farms from 2004-2018. As agricultural policy in the United Kingdom is heading towards the Environmental Land Management Scheme, some farmers might be encouraged to farm with a lower chemical intensity thereby making estimations adjusting for this variable more important within production function estimations. 
Chapter 4 examines the farmer's return to education differentiating between organic and conventional farming. By using the 1972 Raising of the School Leaving Age as a quasi-experiment with a Regression Discontinuity Design, we identify a causal relationship for the farmer's return to education on farm economic performance. Using data from a sample of English farms between 2011 and 2018 from the Farm Business Survey, we show: (i) a positive return to education on farm performance (ii) a higher education return in organic farming in comparison with conventional farming.
Additional file 1 of Potential prognosis index for m6A-related mRNA in cholangiocarcinoma
Creators: name: Zhu, Huaqiang
name: Zhao, Haini
name: Wang, Jianlu
name: Zhao, Shuchao
name: Ma, Chaoqun
name: Wang, Dongliang
name: Gao, Hengjun
name: Yang, Faji
name: Ni, Qingqiang
name: Li, Hongguang
name: Zhou, Xu
name: Zhang, Chunqing
name: Lu, Jun
Publisher: name: figshare
Year: 2022
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1: Supplementary Table S1. m6A-related mRNA set (n = 1281).
Study on Defects in Multicrystalline Silicon Wafer Solar Cells by Electroluminescence Imaging and Synchrotron Radiation Induced X-Ray Emission
Creators: name: Palina, N.
name: Peloso, M.P.
name: Banas, K.
name: Hoex, B.
name: Aberle, A.G.
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; 91-94
description: The quality of multicrystalline silicon wafers used in photovoltaics for the production of solar cells is determined by two broad classes of defects: extended crystal defects (such as dislocations) and 3-d transition metal impurities. In this paper the multi-Si wafer quality is studied by a combination of electroluminescence (EL) imaging
and synchrotron radiation induced X-ray emission (SRIXE). Forward and reverse-bias EL is used to localise defective regions of a multi-Si wafer solar cell. Subsequently, SRIXE emission spectra are taken at these defective regions, allowing detection of impurity atoms. Analysis of the SRIXE spectra indicates that regions with a relatively high reverse-bias EL intensity feature a high density of metal impurities, in this case cobalt. No SRIXE signal indicating a presence of metal precipitates is detected in regions with a high sub-bandgap EL intensity under forward bias. These results indicate that the combination of SRIXE and EL enables us to differentiate between the nature of defects in multi-Si wafers. Generally, reverse-bias luminescence is related to metal impurities, whereas sub-bandgap luminescence is related to crystallographic dislocations.
Entangled-like Chain Dynamics in Non-entangled Polymer Blends with Large Dynamic Asymmetry
Creators: name: Moreno, Angel J.
name: Colmenero, Juan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We discuss simulations of a simple model for polymer blends in the framework of the Rouse model. At odds with standard predictions, large dynamic asymmetry between the two components induces strong non-exponentiality of the Rouse modes for the fast component. Despite chains being much shorter than the entanglement length, it also induces dynamic features resembling a crossover to entangled-like chain dynamics. This unusual behavior is associated to strong memory effects which break down the assumption of time uncorrelation of the external forces acting on the tagged chain.
description: Version 2. Major changes. New data
Additional file 17 of High-pressure processing-induced transcriptome response during recovery of Listeria monocytogenes
Creators: name: Duru, Ilhan Cem
name: Bucur, Florentina Ionela
name: Andreevskaya, Margarita
name: Nikparvar, Bahareh
name: Ylinen, Anne
name: Grigore-Gurgu, Leontina
name: Rode, Tone Mari
name: Crauwels, Peter
name: Laine, Pia
name: Paulin, Lars
name: Løvdal, Trond
name: Riedel, Christian U.
name: Bar, Nadav
name: Borda, Daniela
name: Nicolau, Anca Ioana
name: Auvinen, Petri
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 17: Figure S17. Visualization of the experimental design.
On the Use of Guidance Methods to Improve the Accuracy of Insolation Forecasts for Photovoltaic Applications in Japan
Creators: name: Fonseca Jr., J.G.S.
name: Oozeki, T.
name: Ohtake, H.
name: Shimose, K.-I.
name: Takashima, T.
name: Ogimoto, K.
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; 4123-4127
description: The objective of this study is to present two simple guidance methods to improve forecasts of insolation for photovoltaic systems. The guidance methods work as a post-processing stage of forecasts of insolation done with a numerical weather forecast system to improve its accuracy. The first method presented is based on support vector regression and second one is based on multiple regression analysis. Both methods were used to improve forecasts done by the Japan Meteorological Agency GPV-MSM forecast system. The evaluations were done using 2 years of data, 2009 and 2010, for data of Tsukuba city in Japan. The methods were applied on hourly insolation forecasts using temperature, humidity, and extraterrestrial insolation as guidance parameters. Two kinds of
error were regarded, the root mean square error, and the mean absolute error. For 1 year of forecasts the approach
based on support vector regression decreased the root mean square error from 0.1094 kWh/m2 to 0.1016 kWh/m2,
7.2% of improvement. For the same kind of error the multiple regression approach based result was slightly higher
0.1024 kWh/m2. Regarding the annual mean absolute error, whereas the value achieved with support vector
regression was 1.6% lower than the one of the original forecasts, the use of multiple regression, increased the same
error by 2.5%, indicating that the use of support vector regression yields better results.
On WL-rank of Deza Cayley graphs
Creators: name: Churikov, Dmitry
name: Ryabov, Grigory
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C25, 05C60, 05C75

description: The WL-rank of a digraph $Γ$ is defined to be the rank of the coherent configuration of $Γ$. We construct a new infinite family of strictly Deza Cayley graphs for which the WL-rank is equal to the number of vertices. The graphs from this family are divisible design and integral.
description: 7 pages. arXiv admin note: text overlap with arXiv:2012.13898
New Crop Insurance Option for Diversified Operations:  Whole Farm Revenue Protection
Creators: name: Goeringer, Paul
name: Leathers, Howard
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: Whole Farm
Crop Insurance
USDA
AGR
AGR-Lite
Whole Farm Revenue

description: The 2014 Farm Bill authorized USDA’s Risk Management Agency (RMA) to develop a new type of revenue insurance product, Whole-Farm Revenue Protection (WFRP).  WFRP provides a risk management tool for all commodities on farms with up to $8.5 million in insured revenue.  WFRP is not intended for one specific crop, like corn, wheat, or soybeans like traditional revenue and yield insurance products, but is intended to cover all crops and livestock grown on a farm.  This new product will replace the Adjusted Gross Revenue (AGR) and Adjusted Gross Revenue-Lite policies.
description: The 2014 Farm Bill authorized USDA’s Risk Management Agency (RMA) to develop a new type of revenue insurance product, Whole-Farm Revenue Protection (WFRP).  WFRP provides a risk management tool for all commodities on farms with up to $8.5 million in insured revenue.  WFRP is not intended for one specific crop, like corn, wheat, or soybeans like traditional revenue and yield insurance products, but is intended to cover all crops and livestock grown on a farm.  This new product will replace the Adjusted Gross Revenue (AGR) and Adjusted Gross Revenue-Lite policies.
description: Department of Agricultural and Resource Economics, Maryland Department of Agriculture, USDA-Risk Management Agency
Efficient wave function matching approach for quantum transport calculations
Creators: name: Sørensen, Hans Henrik B.
name: Hansen, Per Christian
name: Petersen, Dan Erik
name: Skelboe, Stig
name: Stokbro, Kurt
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Wave Function Matching (WFM) technique has recently been developed for the calculation of electronic transport in quantum two-probe systems. In terms of efficiency it is comparable with the widely used Green's function approach. The WFM formalism presented so far requires the evaluation of all the propagating and evanescent bulk modes of the left and right electrodes in order to obtain the correct coupling between device and electrode regions. In this paper we will describe a modified WFM approach that allows for the exclusion of the vast majority of the evanescent modes in all parts of the calculation. This approach makes it feasible to apply iterative techniques to efficiently determine the few required bulk modes, which allows for a significant reduction of the computational expense of the WFM method. We illustrate the efficiency of the method on a carbon nanotube field-effect-transistor (FET) device displaying band-to-band tunneling and modeled within the semi-empirical Extended Hückel theory (EHT) framework.
description: Submitted to Phys. Rev. B
Additional file 15 of High-pressure processing-induced transcriptome response during recovery of Listeria monocytogenes
Creators: name: Duru, Ilhan Cem
name: Bucur, Florentina Ionela
name: Andreevskaya, Margarita
name: Nikparvar, Bahareh
name: Ylinen, Anne
name: Grigore-Gurgu, Leontina
name: Rode, Tone Mari
name: Crauwels, Peter
name: Laine, Pia
name: Paulin, Lars
name: Løvdal, Trond
name: Riedel, Christian U.
name: Bar, Nadav
name: Borda, Daniela
name: Nicolau, Anca Ioana
name: Auvinen, Petri
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 15: Figure S15. Visualization of amino acid sequence similarity of lmo1013 and lmo2229 genes in strain EGDe, RO15, and ScottA.
Topological Higher Gauge Theory - from BF to BFCG theory
Creators: name: Girelli, F.
name: Pfeiffer, H.
name: Popescu, E. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study generalizations of 3- and 4-dimensional BF-theory in the context of higher gauge theory. First, we construct topological higher gauge theories as discrete state sum models and explain how they are related to the state sums of Yetter, Mackaay, and Porter. Under certain conditions, we can present their corresponding continuum counterparts in terms of classical Lagrangians. We then explain that two of these models are already familiar from the literature: the SigmaPhiEA-model of 3-dimensional gravity coupled to topological matter, and also a 4-dimensional model of BF-theory coupled to topological matter.
description: 16 pages, LaTeX 2e with XYPic diagrams
Additional file 16 of High-pressure processing-induced transcriptome response during recovery of Listeria monocytogenes
Creators: name: Duru, Ilhan Cem
name: Bucur, Florentina Ionela
name: Andreevskaya, Margarita
name: Nikparvar, Bahareh
name: Ylinen, Anne
name: Grigore-Gurgu, Leontina
name: Rode, Tone Mari
name: Crauwels, Peter
name: Laine, Pia
name: Paulin, Lars
name: Løvdal, Trond
name: Riedel, Christian U.
name: Bar, Nadav
name: Borda, Daniela
name: Nicolau, Anca Ioana
name: Auvinen, Petri
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 16: Figure S16. Log2 fold change heatmap of all differentially expressed genes in both strains. The rows were clustered based on log2 fold change. Clusters that show strain-specific differences were shown in detail.
Electrical Properties of Hot Wall Deposited PbTe-SnTe Thin Films
Creators: name: Ivanov, V.A.
name: Gremenok, V.F.
name: Lazenka, V.V.
name: Bente, K.
name: Leontyev, V.G.
Publisher: name: WIP
Year: 2012
Subjects: Material Studies, New Concepts and Ultra-High Efficiency
New Materials, Cells and Modules

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 318-321
description: Lead-tin telluride (PbXSn1-XTe) alloys are materials with good thermoelectric properties and also are
semiconductors of current interest for possible applications as long wavelength infrared detectors. Polycrystalline
telluride of the PbXSn1-XTe (0.0 ≤ X ≤ 1.0) alloys were synthesized by the direct fusion technique. The thin films of
these materials were prepared by a hot wall deposition method on glass substrates at Tsub. = 230 - 330 oC and vacuum
of about 10-5 Torr. The microstructure of films was characterized by XRD, SEM, EDX and AES. The thin film
powder patterns matched the powder target patterns satisfactorily and indicated the absence of binary phases. The
films showed a natural cubic structure. The SEM analyses show that the films are densely packed and have good
mechanical adhesion. The as-grown PbXSn1-XTe films show p-type conductivity. Thermoelectric measurements of the
films showed high values of room-temperature Seebeck coefficient ranging from 20 to 400 μV K-1, for SnTe to PbTe
thin films, respectively. The conductivity of the films was in the range of  = 3·101 – 1·104 Ω-1·cm-1. The increase of
concentration of lead atoms leads to decrease of conductivity.
Quantum dynamics of two bosons in an anharmonic trap: Collective vs internal excitations
Creators: name: Matthies, Christian
name: Zöllner, Sascha
name: Meyer, Hans-Dieter
name: Schmelcher, Peter
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: This work deals with the effects of an anharmonic trap on an interacting two-boson system in one dimension. Our primary focus is on the role of the induced coupling between the center of mass and the relative motion as both anharmonicity and the (repulsive) interaction strength are varied. The ground state reveals a strong localization in the relative coordinate, counteracting the tendency to fragment for stronger repulsion. To explore the quantum dynamics, we study the system's response upon (i) exciting the harmonic ground state by continuously switching on an additional anharmonicity, and (ii) displacing the center of mass, this way triggering collective oscillations. The interplay between collective and internal dynamics materializes in the collapse of oscillations, which are explained in terms of few-mode models.
description: 8 pages, 7 figures
Interdigitated Front Contact Approach to Obtain High Efficient Silicon Stack Junction Solar Cell
Creators: name: Choi, Y.
name: Kim, D.
name: Do, E.C.
name: Kim, C.
name: Lee, Y.
name: Kim, Y.G.
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; 2010-2013
description: We report the study of silicon interdigitated front-contact (IFC) cell to make stack junctions with germanium bottom cell. We processed dense pitch and high aspect ratio metal finger to reduce optical shadowing effect. All ion implanted shallow junction and surface passivation made it possible to implement dense pitch IFC cell. Thin thermal oxide and SiNx:H (RI 2.1) double anti reflection coating (DARC) in combination with post-contactsilicide-
heat treatment showed good surface passivation of both surfaces and contacts. Stacking with germanium bottom cell, we obtained 1.57 % additional absolute power efficiency and 22 % total power efficiency in Si stack cell. We eventually hope to obtain stack module efficiency higher than that of silicon one junction practical limit.
Cosmic-ray production from neutron escape in microquasar jets
Creators: name: Escobar, G. J.
name: Pellizza, L. J.
name: Romero, G. E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The origin of Galactic cosmic rays remains a matter of debate, but supernova remnants are commonly considered to be the main place where high-energy cosmic rays are accelerated. Nevertheless, current models predict cosmic-ray spectra that do not match observations and the efficiency of the acceleration mechanism is still undetermined. On the other hand, the contribution of other kinds of sources to the Galactic cosmic-ray population is still unclear, and merits investigation. In this work we explore a novel mechanism through which microquasars might produce cosmic rays. In this scenario, microquasar jets generate relativistic neutrons, which escape and decay outside the system; protons and electrons, created when these neutrons decay, escape to the interstellar medium as cosmic rays. The most promising scenarios arise in extremely luminous systems ($L_\mathrm{jet} \sim 10^{40}\,\mathrm{erg \, s}^{-1}$), in which the fraction of jet power deposited in cosmic rays can reach $\sim 0.001$. Slow jets ($Γ\lesssim 2$, where $Γ$ is the bulk Lorentz factor) favour neutron production. The resulting cosmic-ray spectrum is similar for protons and electrons, which share the power in the ratio given by neutron decay. The spectrum peaks at roughly half the minimum energy of the relativistic protons in the jet; it is soft (spectral index $\sim 3$) above this energy, and almost flat below. Values of spectral index steeper than $2$ are possible for cosmic rays in our model and these indeed agree with those required to explain the spectral signatures of Galactic cosmic rays, although only the most extreme microquasars provide power comparable to that of a typical supernova remnant. The mechanism explored in this work may provide stronger and softer cosmic-ray sources in the early Universe, and therefore contribute to the heating and reionisation of the intergalactic medium.
description: 11 pages, 10 figures
Quantative Evaluation of Output Power Degradation for Crystalline Silicon PV Modules in Field Exposure Test by Using Equivalent Circuit Model
Creators: name: Hayashi, K.
name: Takahashi, Y.
name: Fujiwara, K.
name: Ishihara, Y.
name: Nishikawa, S.
name: Kato, H.
Publisher: name: WIP
Year: 2012
Subjects: Components for PV Systems
PV Modules

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3182-3187
description: In this paper, based on the data of field exposure test, which was initiated by Japan Electrical Safety &
Environment Technology Laboratories (JET), we investigate the degradation characteristics of crystalline silicon PV
modules by using its equivalent circuit model for the purpose of the lifetime extension in the development of PV
modules. Specifically, we observe the degradation of bus bar electrode and solar cell by capturing electro
luminescence images and infrared images of the surface of PV modules when forward voltage is applied. Although
this observation enables us to determine which part of the PV module deteriorates, it is impossible to quantitatively
evaluate how much each deteriorated component has an influence on power degradation. Accordingly, using the
equivalent circuit model of the PV module, we calculate the equivalent circuit parameters from the measured I-V
characteristics of the PV modules in the field exposure test by the least squares method. We adopt the photocurrent,
series resistance, shunt resistance and diode factor as unknown parameters in the equivalent circuit model. Based on
the change of the circuit parameters, we evaluate the influence of the deterioration of each component on decline of
output power quantitatively.
Instanton transition in thermal and moduli deformed de Sitter cosmology
Creators: name: Kounnas, Costas
name: Partouche, Herve
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the de Sitter cosmology deformed by the presence of a thermal bath of radiation and/or time-dependent moduli fields. Depending on the parameters, either a first or second order phase transition can occur. In the first case, an instanton allows a double analytic continuation. It induces a probability to enter the inflationary evolution by tunnel effect from another cosmological solution. The latter starts with a big bang and, in the case the transition does not occur, ends with a big crunch. A temperature duality exchanges the two cosmological branches. In the limit where the pure de Sitter universe is recovered, the tunnel effect reduces to a "creation from nothing", due to the vanishing of the big bang branch. However, the latter may be viable in some range of the deformation parameter. In the second case, there is a smooth evolution from a big bang to the inflationary phase.
description: 35 pages, 10 eps figures
Studying the MSSM Higgs sector by forward proton tagging at the LHC
Creators: name: Heinemeyer, S.
name: Khoze, V. A.
name: Ryskin, M. G.
name: Stirling, W. J.
name: Tasevsky, M.
name: Weiglein, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the use of forward proton detectors at the LHC installed at 220 m and 420 m distance around ATLAS and / or CMS can provide important information on the Higgs sector of the MSSM. We analyse central exclusive production of the neutral CP-even Higgs bosons h and H and their decays into bottom quarks, tau leptons and W bosons in different MSSM benchmark scenarios. Using plausible estimates for the achievable experimental efficiencies and the relevant background processes, we find that the prospective sensitivity of the diffractive Higgs production will allow to probe interesting regions of the M_A--tan_beta parameter plane of the MSSM. Central exclusive production of the CP-even Higgs bosons of the MSSM may provide a unique opportunity to access the bottom Yukawa couplings of the Higgs bosons up to masses of M_H \lsim 250 GeV. We also discuss the prospects for identifying the CP-odd Higgs boson, A, in diffractive processes at the LHC.
description: 51 pages, 14 figures. Minor changes, version to appear in Eur. Phys. J. C
Analyses of Solar Irradiance Data from Distributed Observation Sites for Spatial Interpolation
Creators: name: Kawasaki, N.
name: Usami, A.
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; 4128-4131
description: Correlations of solar irradiance data of 78 pyranometers distributed over 3 Japanese regions having
different areas of aproximately 150, 40, and 10 km squares were analyzed. Depending on temporal fluctuation cycle,
different spatial correlations of the solar irradiance were found out. On the basis of these analysis results, we have
proposed a method for spatial interpolation of sparse solar irradiance data. Spatial interpolation depends only on the
weighting factors which are calculated from a spatial correlation function referred to as “variogram”; the variogram is
the most important element for accurate predictions. In previous work, we presented a variogram model from
analyses of a solar irradiance dataset of an about 10km square area. In this paper, we have discussed the variogram
model for predictions of larger areas of about 40 and 150 km squares. Using the variogram model in the spatial
interpolation, medians of root mean square errors (RMSEs) were lower than about 0.15 kW/m2, indicating good
predictions.
Rényi Holographic Dark Energy Models In Multidimensional Universe
Creators: name: Saha, A.
name: Chanda, A.
name: Dey, S.
name: Paul, B. C.
name: Ghose, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Rényi Holographic Dark Energy (RHDE) Models has been studied in different dimensions considering a flat FRW metric, subsequently exploring the nature of evolution of different cosmological parameters. It is seen that the number of dimensions affect the evolution of the cosmological parameters and the transition of the universe from decelerating to accelerating phase. The statefinder diagnosis has been performed and it is seen that the model corresponds to the $ΛCDM$ model for the present and future universe.
description: 14 pages, 7 figures, accepted for publication in Int. J. Geom. Methods Mod. Phys
Volume Dependence of Spectral Weights for Unstable Particles in a Solvable Model
Creators: name: Meng, Guozhan
name: Liu, Chuan
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Volume dependence of the spectral weight is usually used as a simple criteria to distinguish single-particle states from multi-particle states in lattice QCD calculations. Within a solvable model, the Lee model, we show that this criteria is in principle only valid for a stable particle or a narrow resonance. If the resonance being studied is broad, then the volume dependence of the corresponding spectral weight resembles that of a multi-particle state instead of a single-particle one. For an unstable $V$-particle in the Lee model, the transition from single-particle to multi-particle volume dependence is governed by the ratio of its physical width to the typical level spacing in the finite volume. We estimate this ratio for practical lattice QCD simulations and find that, for most cases, the resonance studied in lattice QCD simulations still resembles the single particle behavior.
description: 15 pages, no figures. Title modified. Version to appear on Phys. Rev. D
La realtà e il desiderio: Gregorio Prieto testimone del Novecento europeo
Creators: name: Motta, Luigi
Publisher: name: Università degli studi di Torino
Year: 2019

description: Nell'affrontare la vita e l'opera dell'artista Gregorio Prieto Muñoz la critica si è finora esclusivamente soffermata, o meglio sarebbe dire incentrata, sul ruolo minore che egli ebbe all'interno dei movimenti d'avanguardia d'inizio XX secolo; quegli stessi che videro il fiorire in territorio ispanico di una moltitudine di letterati posteriormente definita generación del '27. Porre, tuttavia, questo pittore ancor poco conosciuto a livello internazionale all'interno di una cerchia di innovatori dell'estetica non ha a oggi permesso né di inquadrarne la produzione in una qualsiasi ottica autonoma, né di valutarne le intrinseche qualità che se furono anche frutto, come non v'è dubbio, di una tale prossimità, non conobbero solo strade già precedentemente definite da altri. Lo
scopo che qui ci si propone è proprio quello di restituirgli una dimensione personale di cui il monotematico punto di vista esegetico fin qui adottato lo ha privato, e altresì di rendere evidente come da un'interpretazione meno angusta possa rivelarsi ai nostri occhi un'arte di matrice europea, non fosse altro che per la capacità di una soggettiva rielaborazione di stili ed elementi tipici dei vari circoli artistici frequentati, che Prieto evidenzia nelle proprie opere lungo tutto l'arco d ella sua esperienza vitale.
description: Artifara, N. 2 (2002)
Backaction noise produced via cavity-aided nondemolition measurement of an atomic clock state
Creators: name: Teper, Igor
name: Vrijsen, Geert
name: Lee, Jongmin
name: Kasevich, Mark A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We use a quantum nondemolition measurement to probe the collective pseudospin of an atomic ensemble in a high-finesse optical cavity. We analyze the backaction antisqueezing produced by the measurement process to show that our protocol could create conditional spin squeezing in the atomic ensemble.
description: 4.1 pages, 3 figures
Divergence and Consensus in Majority Rule
Creators: name: Krapivsky, P. L.
name: Redner, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We investigate majority rule dynamics in a population with two classes of people, each with two opinion states $\pm 1$, and with tunable interactions between people in different classes. In an update, a randomly selected group adopts the majority opinion if all group members belong to the same class; if not, majority rule is applied with probability $ε$. Consensus is achieved in a time that scales logarithmically with population size if $ε\geq ε_c=\frac{1}{9}$. For $ε
description: Main text: 5 pages, 6 figures. Supplementary material, 5 page2, 2 figures
D=2 N=(2,2) Semi Chiral Vector Multiplet
Creators: name: Gates,, S. James
name: Merrell, Willie
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We describe a new 1+1 dimensional N=(2,2) vector multiplet that naturally couples to semi chiral superfields in the sense that the gauged supercovariant derivative algebra is only consistent with imposing covariantly semi chiral superfield constraints. It has the advantages that its prepotentials shift by semi chiral superfields under gauge transformations. We also see that the multiplet relates the chiral vector multiplet with the twisted chiral vector multiplet by reducing to either multiplet under appropriate limits without being reducible in terms of the chiral and twisted chiral vector multiplet. This is explained from the superspace geometrical point of view as the result of possessing a symmetry under the discrete supercoordinate transformation that is responsible for mirror copies of supermultiplets. We then describe how to gauge a non linear sigma model with semi chiral superfields using the prepotentials of the new multiplet.
description: 15 pages
Aerodynamic effects and performance improvements of running in drafting formations
Creators: name: Schickhofer, Lukas
name: Hanson, Henry
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Drafting as a process to reduce drag and to benefit from the presence of other competitors is applied in various sports with several recent examples of competitive running in formations. In this study, the aerodynamics of a realistic model of a female runner is calculated by computational fluid dynamics (CFD) simulations at four running speeds of 15 km/h, 18 km/h, 21 km/h, and 36 km/h. Aerodynamic power fractions of the total energy expenditure are found to be in the range of 2.6-8.5%. Additionally, four exemplary formations are analysed with respect to their drafting potential and resulting drag values are compared for the main runner and her pacers. The best of the formations achieves a total drag reduction on the main runner of 75.6%. Moreover, there are large variations in the drag reduction between the considered formations of up to 42% with respect to the baseline single-runner case. We conclude that major drag reduction of more than 70% can already be achieved with fairly simple formations, while certain factors, such as runners on the sides, can have a detrimental effect on drag reduction due to local acceleration of the passing flow. Using an empirical model for mechanical power output during running, gains of metabolic power and performance predictions are evaluated for all considered formations. Improvements in running economy are up to 3.5% for the best formation, leading to velocity gains of 2.3%. This translates to 154 s (~2.6 min) saved over a marathon distance. Consequently, direct conclusions are drawn from the obtained data for ideal drafting of long-distance running in highly packed formations.
La poesía política de Alberti
Creators: name: Rodríguez, Juan Carlos
Publisher: name: Università degli studi di Torino
Year: 2019

description: Tras la desaparición de la política en el siglo XX, estudiada por el autor en Dichos y escritos, tras las transformaciones de la poesía es el mismo periodo, la reevaluación del sintagma poesía política y el análisis de los poemas de Alberti como tal considerados lleva a una valoración de una poesía generalmente mal leída, peor entendida e injustamente minusvalorada.
description: Artifara, N. 2 (2002)
Comparison of Sawing Technique and the Resulting Acidic Texturisation
Creators: name: Meinel, B.
name: Blocks, C.
name: Koschwitz, T.
name: Acker, J.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Feedstock, Crystallisation and Wafering

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 798-801
description: The present work compares the time-dependent evolution of the surface morphology during the horizontal
acidic etching of diamond wire (DW) and SiC slurry (SP) sawn multi-crystalline wafer by means of scanning electron
microscopy (SEM), confocal microscopy, reflectivity measurements, and the measurement of the etch rates. Both sawing
processes lead to different as cut structures which have a significant impact on the evolution of the wafer surface
morphology during the acidic etching. This initial structure controls the sites where the chemical attack preferentially
occurs and affects therefore to a considerable extent the texturisation of the etched surface as well as the rate of which
this morphology is formed. Based on the experimental results the variation of the acidic mixture affects only the SP sawn
wafer, no impact was found for the DW sawn wafer. To create homogeneously texturized DW sawn wafers of low
reflectivity it is necessary to adapt the sawing process as well as the development of new etchants and new etch
conditions.
El indispensable factótum Sebastián de Covarrubias Horozco (1539-1613): pedagogo, cortesano y administrador
Creators: name: Weiner, Jack
Publisher: name: Università degli studi di Torino
Year: 2019

description: Un rasgo de la personalidad de los Hermanos Covarrubias y reflejo de su situación de descendientes de judíos se ven en que los dos hermanos buscan erennemente protectores a quienes aceptar como a padre adoptivos y quienes, a su vez, les tratasen efectivamente como padres a hijos. En realidad los hermanos Horozco Covarrubias siempre dependen de otros, si no para sobrevivir, por lo menos para prosperar. Su inteligencia, experiencia y sexto sentido son los instrumentos de los cuales se valen. La búsqueda y los esfuerzos de estos hermanos en la lucha por el bienestar socio-económico profesional se distingue muy poco de la de la vida de miles y miles de sus contemporáneos. Su lucha para hallar asiento era típica de los españoles de su época. Es precisamente en su gran parecido con sus compatriotas donde yace el atractivo de la familia Horozco Covarrubias para el investigador.
description: Artifara, N. 2 (2002)