cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Direct observation and consequences of dopant segregation inside and outside dislocation cores in perovskite BaSnO3
Creators: name: Yun, Hwanhui
name: Prakash, Abhinav
name: Birol, Turan
name: Jalan, Bharat
name: Mkhoyan, K. Andre
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Distinct dopant behaviors inside and outside dislocation cores are identified by atomic-resolution electron microscopy in perovskite BaSnO3 with considerable consequences on local atomic and electronic structures. Driven by elastic strain, when A-site designated La dopants segregate near a dislocation core, the dopant atoms accumulate at the Ba sites in compressively strained regions. This triggers formation of Ba-vacancies adjacent to the core atomic sites resulting in reconstruction of the core. Notwithstanding the presence of extremely large tensile strain fields, when La atoms segregate inside the dislocation core, they become B-site dopants, replacing Sn atoms and compensating the positive charge of the core oxygen vacancies. Electron energy-loss spectroscopy shows that the local electronic structure of these dislocations changes dramatically due to the segregation of the dopants inside and around the core ranging from formation of strong La-O hybridized electronic states near the conduction band minimum to insulator-to-metal transition.
"Pudding mold" band drives large thermopower in Na$_x$CoO$_2$
Creators: name: Kuroki, Kazuhiko
name: Arita, Ryotaro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In the present study, we pin down the origin of the coexistence of the large thermopower and the large conductivity in Na$_x$CoO$_2$. It is revealed that not just the density of states (DOS), the effective mass, nor the band width, but the peculiar {\it shape} of the $a_{1g}$ band referred to as the "pudding mold" type, which consists of a dispersive portion and a somewhat flat portion, is playing an important role in this phenomenon. The present study provides a new guiding principle for designing good thermoelectric materials.
description: 5 pages
Broken Pair Model: A viable Alterative to the Shell Model for Odd-Spherical Nuclei
Creators: name: Hamammu, I. M
name: Haq, S.
name: Eldahomi, J. M
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The broken pair model has been developed earlier as an useful approximation to the nuclear shell model for even-even nuclei. It is extended and developed here to include odd nuclei too. The model is then applied successfully in the Zr region, using two different sets of matrix elements, the empirical and the realistic sussex ones. The broken pair model results show a considerable agreement with the shell model results wherever available and with the experimental data where shell model calculations are not performed yet.
description: 13 pages, 8 Figures
An efficient Hantzsch synthesis of 1,4-dihydropyridines using p-toluenesulfonic acid under solvent-free condition
Creators: name: Nasr-Esfahani, Masoud
name: Montazerozohori, Morteza
name: Raeatikia, Razieh
Publisher: name: Maejo University
Year: 2014
Subjects: Hantzsch synthesis,1,4-dihydropyridines,p-toluenesulfonic acid,solvent-free synthesis

description: 1, 8, Maejo International Journal of Science and Technology
Specified Water Piping Systems - Materials in Photovoltaic
Creators: name: Burkhart, M.
name: Mueller, H.
name: Reutz, M.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Manufacturing Issues and Processing

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 1096-1100
description: The content presented within this paper is an extension of a previously published work6 that dealt with
the topic of clean polyvinyl chloride (PVC-X) and polypropylene (PP); henceforth referred to as the 2003 study.
Expanding on that topic, the authors took a look at the growing popularity of polyethylene (PE) to see how it stacked
up against the prior findings. The testing followed the same format so that results could be compared one-on-one.
This will be discussed in more detail later. Since the 2003 study, two things have remained constant. First, high tech
industries continue to economize where they can. No place is a better example than seen in photovoltaic cell
manufacturing where squeezing every expense involved in production is mandatory. Second, PVC, PP and PE
remain materials for general use and were never intended to be used to make piping system components for
conveyance of the highest qualities of water needed. These Materials of Construction are successfully being used in
the Industry for designing Clean Systems complying with SEMI PV3-0310.
Experimental Study of a Thermal Plume Evolving Inside a Rectangular Tunnel: Effects of the Source Height
Creators: name: Hatem SAAFI, Ahmedou Ould Mohamed MAHMOUD
Publisher: name: Walailak University
Year: 2015
Subjects: Fire plume, fire tunnel, thermal plume, turbulent natural convection

description: 2, 12, Walailak Journal of Science and Technology
Mathematical Modeling of Drying Kinetics of Bird's Eye Chilies in a Convective Hot-Air Dryer
Creators: name: Kongdej LIMPAIBOON
Publisher: name: Walailak University
Year: 2015
Subjects: Drying kinetics, modeling, hot air dryer, Bird's eye chili, color

description: 2, 12, Walailak Journal of Science and Technology
Sources of Partial Resistance to Leaf Rust in Hard Wheat Landraces Cultivated in Palestine
Creators: name: Munqez Jamil Yacoub SHTAYA
Publisher: name: Walailak University
Year: 2015
Subjects: Landraces, partial resistance, Puccinia triticina, Triticum turgidum, wheat

description: 3, 12, Walailak Journal of Science and Technology
Generation of squeezed states of microwave radiation in a superconducting resonant circuit
Creators: name: Zagoskin, A. M.
name: Il'ichev, E.
name: McCutcheon, M. W.
name: Young, Jeff
name: Nori, Franco
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: High-quality superconducting oscillators have been successfully used for quantum control and readout devices in conjunction with superconducting qubits. Also, it is well known that squeezed states can improve the accuracy of measurements to subquantum, or at least subthermal, levels. Here we show theoretically how to produce squeezed states of microwave radiation in a superconducting oscillator with tunable parameters. The circuit impedance, and thus the resonance frequency, can be changed by controlling the state of an RF SQUID inductively coupled to the oscillator. By repeatedly shifting the resonance frequency between any two values, it is possible to produce squeezed and subthermal states of the electromagnetic field in the (0.1--10) GHz range, even when the relative frequency change is small. We propose experimental protocols for the verification of squeezed state generation, and for their use to improve the readout fidelity when such oscillators serve as quantum transducers.
Nitrogen and Salt Supplementation of Oil Palm Trunk Juice and Its Optimization Conditions to Enhance Lactic Acid Production by Lactobacillus rhamnosus TISTR 108
Creators: name: Nisa SAELEE, Klanarong SRIROTH
Publisher: name: Walailak University
Year: 2015
Subjects: Lactic acid, fermentation, oil palm trunk, OPT, Lactobacillus rhamnosus

description: 3, 12, Walailak Journal of Science and Technology
The VVDS-SWIRE-GALEX-CFHTLS surveys: Physical properties of galaxies at z below 1.2 from photometric data
Creators: name: Walcher, C. J.
name: Lamareille, F.
name: Vergani, D.
name: Arnouts, S.
name: Buat, V.
name: Charlot, S.
name: Tresse, L.
name: Fevre, O. Le
name: Bolzonella, M.
name: Brinchmann, J.
name: Pozzetti, L.
name: Zamorani, G.
name: Bottini, D.
name: Garilli, B.
name: Brun, V. Le
name: Maccagni, D.
name: Milliard, B.
name: Scaramella, R.
name: Scodeggio, M.
name: Vettolani, G.
name: Zanichelli, A.
name: Adami, C.
name: Bardelli, S.
name: Cappi, A.
name: Ciliegi, P.
name: Contini, T.
name: Franzetti, P.
name: Foucaud, S.
name: Gavignaud, I.
name: Guzzo, L.
name: Ilbert, O.
name: Iovino, A.
name: McCracken, H. J.
name: Marano, B.
name: Marinoni, C.
name: Mazure, A.
name: Meneux, B.
name: Merighi, R.
name: Paltani, S.
name: Pello, R.
name: Pollo, A.
name: Radovich, M.
name: Zucca, E.
name: Lonsdale, C.
name: Martin, D. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We intend to show that it is possible to derive the physical parameters of galaxies from their broad-band spectral energy distribution out to a redshift of 1.2. This method has the potential to yield the physical parameters of all galaxies in a single field in a homogeneous way. We use an extensive dataset, assembled in the context of the VVDS survey, which reaches from the UV to the IR and covers a sample of 84073 galaxies over an area of 0.89 deg$^2$. We also use a library of 100000 model galaxies with a large variety of star formation histories (in particular including late bursts of star formation). We find that we can determine the physical parameters stellar mass, age and star formation rate with good confidence. We validate the star formation rate determinations in particular by comparing it to a sample of spectroscopically observed galaxies with an emission line measurement. We use our sample to build the number density function of galaxies as a function of stellar mass, specific star formation rate and redshift. We then study whether the stellar mass function at a later time can be predicted from the stellar mass function and star formation rate distribution at an earlier time. We find that the predicted growth in stellar mass from star formation agrees with the observed one. However, the predicted stellar mass density for massive galaxies is lower than observed, while the mass density of intermediate mass galaxies is overpredicted. When comparing with a direct measurement of the major merger rate from the VVDS survey we find that major mergers are sufficient to explain about a third of the mass build-up at the massive end, while the rest is likely contributed through minor mergers.
description: A&A in print, version incorporates referee comments and language editing
3D-Aware Ellipse Prediction for Object-Based Camera Pose Estimation
Creators: name: Zins, Matthieu
name: Simon, Gilles
name: Berger, Marie-Odile
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: I.4
subject: 65D19

description: In this paper, we propose a method for coarse camera pose computation which is robust to viewing conditions and does not require a detailed model of the scene. This method meets the growing need of easy deployment of robotics or augmented reality applications in any environments, especially those for which no accurate 3D model nor huge amount of ground truth data are available. It exploits the ability of deep learning techniques to reliably detect objects regardless of viewing conditions. Previous works have also shown that abstracting the geometry of a scene of objects by an ellipsoid cloud allows to compute the camera pose accurately enough for various application needs. Though promising, these approaches use the ellipses fitted to the detection bounding boxes as an approximation of the imaged objects. In this paper, we go one step further and propose a learning-based method which detects improved elliptic approximations of objects which are coherent with the 3D ellipsoid in terms of perspective projection. Experiments prove that the accuracy of the computed pose significantly increases thanks to our method and is more robust to the variability of the boundaries of the detection boxes. This is achieved with very little effort in terms of training data acquisition -- a few hundred calibrated images of which only three need manual object annotation. Code and models are released at https://github.com/zinsmatt/3D-Aware-Ellipses-for-Visual-Localization.
description: Presented at 3DV 2020. Code and models released at https://github.com/zinsmatt/3D-Aware-Ellipses-for-Visual-Localization
On the Asymptotic Behavior of Selfish Transmitters Sharing a Common Channel
Creators: name: Inaltekin, Hazer
name: Chiang, Mung
name: Poor, Harold Vincent
name: Wicker, Stephen B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Information Theory (cs.IT)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: This paper analyzes the asymptotic behavior of a multiple-access network comprising a large number of selfish transmitters competing for access to a common wireless communication channel, and having different utility functions for determining their strategies. A necessary and sufficient condition is given for the total number of packet arrivals from selfish transmitters to converge in distribution. The asymptotic packet arrival distribution at Nash equilibrium is shown to be a mixture of a Poisson distribution and finitely many Bernoulli distributions.
description: Proceedings of the 2008 IEEE International Symposium on Information Theory, Toronto, ON, Canada, July 6 - 11, 2008
Lumogen Violet Dye as Luminescent Down-Shifting Layer for c-Silicon Solar Cells
Creators: name: Ahmed, H.
name: Kennedy, M.
name: Confrey, T.
name: Doran, J.
name: McCormack, S.J.
name: Galindo, S.
name: Voz Sánchez, C.
name: Puigdollers González, J.
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; 311-313
description: In this investigation Naphtalimide based Lumogen Violet organic dye [BASF] is characterized for
inclusion in luminescent downshifting (LDS) layers. A PV device made up of an LDS layer of Lumogen Violet
deposited on top of a crystalline silicon cell has been fabricated to improve its power conversion efficiency. External
quantum efficiency measurements and outdoor tests for the PV/LDS devices are discussed. An analytical model was also
developed to compare experiment results with the model predictions.
Covariant Anomalies, Horizons and Hawking Radiation
Creators: name: Banerjee, Rabin
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Hawking radiation is obtained from anomalies resulting from a breaking of diffeomorphism symmetry near the event horizon of a black hole. Such anomalies, manifested as a nonconservation of the energy momentum tensor, occur in two different forms -- covariant and consistent. The crucial role of covariant anomalies near the horizon is revealed since this is the {\it only} input required to obtain the Hawking flux, thereby highlighting the universality of this effect. A brief description to apply this method to obtain thermodynamic entities like entropy or temperature is provided.
description: 5 pages; This essay was awarded an Honorable Mention in the 2008 Gravity Research Foundation essay competition
Multi-Purpose Model Validation Efforts for Space Plasma and Radiation Environment in the Near-Earth Region
Creators: name: Zheng, Yihua
Publisher: name: Zenodo
Year: 2025

description: Model validation is indispensable to transitioning a model from research to operations. In this presentation, we focus on the performance of models for specific operational purposes/user needs, which include careful selection of the corresponding specific Essential Space Environment Quantity (ESEQ) and a proper set of metrics. Initial results of our community-wide validation efforts under the COSPAR ISWAT Initiative with relevance to internal charging (and surface charging) are shown. We highlight processes involved in performing such tasks, such as setting up unified guidelines, data preparation, assessment using different metrics, etc. We also present setbacks and challenges associated with such efforts so further progress can be made.
Photovoltaic Modules Reliability on Accelerated and Natural Test - The ELVIRE Project
Creators: name: Saint-Lary, A.
name: Ed-Daoudi, S.
name: Delsol, T.
name: Legrain, P.
name: Marcel, J.C.
Publisher: name: WIP
Year: 2012
Subjects: Components for PV Systems
PV Modules

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3523-3525
description: The long term reliability of system is a critical parameter for a commercial succeeds in the photovoltaic (PV)
sector, particularly for the module. If commercial warrantees are long of 25 years, we haven’t the possibility to correctly
evaluate the power generated by the modules at this age in the natural environment.
So, the goal of the study is to understand the degradation of our modules. Of course, the method is the same than
the others competitors and modules manufacturer because of the standard IEC 61 215. But, we try to make a very precise
study by using our electroluminescence tester and to see all evolutions in materials which constitute the module by all the
tests in the norm of IEC.
All tests are performing on modules without default. A serie with modules with defaults (delamination, bubbles and
electrical default) is submitted to the same accelerated test.
- 5000H of Damp heat test, flash each 100H + EL analysis
- 800 thermal cycling, flash test each 100H + EL analysis
- 2000H UV test, flash test each 100H + EL analysis
- 3 cycles of 5400 Pa (on the top and behind), flash test each cycle + EL analysis
Phonon deformation potentials in wurtzite GaN and ZnO determined by uniaxial pressure dependent Raman measurements
Creators: name: Callsen, Gordon
name: Reparaz, Juan Sebastián
name: Wagner, Markus R.
name: Kirste, Ronny
name: Nenstiel, Christian
name: Hoffmann, Axel
name: Phillips, Matthew R.
Publisher: name: Technische Universität Berlin
Year: 2011
Subjects: subject: 530 Physik
subject: phonon deformation
subject: Raman measurements
subject: Raman spectra
subject: GaN
subject: ZnO

description: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Appl. Phys. Lett. 98, 061906 (2011) and may be found at https://doi.org/10.1063/1.3554434.
description: We report the phonon deformation potentials of wurtzite GaN and ZnO for all zone center optical phonon modes determined by Raman measurements as a function of uniaxial pressure. Despite all the structural and optical similarities between these two material systems, the pressure dependency of their vibrational spectra exhibits fundamental distinctions, which is attributed to their different bond ionicities. In addition, the LO-TO splitting of the A1 and E1 phonon modes is analyzed which yields insight into the uniaxial pressure dependency of Born’s transverse effective charge e∗T.
Mechanical behavior of flat and curved laminates 
interleaved by electrospun nanofibers
Creators: name: Saghafi, Hamed <1984>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: ING-IND/14 Progettazione meccanica e costruzione di macchine

description: A major weakness of composite materials is that low-velocity impact, introduced  accidentally  during  manufacture,  operation  or  maintenance  of  the  aircraft,  may  result  in  delaminations between the plies.  Therefore, the first part of this study is focused on mechanics of curved laminates under impact. For this aim, the effect of preloading on impact response of curved composite laminates is considered. By applying the preload, the stress through the thickness and curvature of the laminates increased. The results showed that all impact parameters are varied significantly. For understanding the contribution rate of preloading and pre-stress on the obtained results another test is designed. The interesting phenomenon is that the preloading can decrease the damaged area when the curvature of the both specimens is the same. Finally the effect of curvature type, concave and convex, is investigated under impact loading. 
In the second part, a new composition of nanofibrous mats are developed to improve the efficiency of curved laminates under impact loading. Therefore, at first some fracture tests are conducted to consider the effect of Nylon 6,6, PCL, and their mixture on mode I and mode II fracture toughness. For this goal, nanofibers are electrospun and interleaved between mid-plane of laminate composite to conduct mode I and mode II tests. The results shows that efficiency of Nylon 6,6 is better than PCL in mode II, while the effect of PCL on fracture toughness of mode I is more. By mixing these nanofibers the shortage of the individual nanofibers is compensated and so the Nylon 6,6/PCL nanofibers could increased mode I and II fracture toughness. Then all these nanofibers are used between all layers of composite layers to investigate their effect on damaged area. The results showed that PCL could decrease the damaged area about 25% and Nylon 6,6 and mixed nanofibers about 50%.
Gravitational and electromagnetic perturbations of a charged black hole in a general gauge condition
Creators: name: Moreno, Claudia
name: Degollado, Juan Carlos
name: Núñez, Darío
name: Rodriguez-Leal, Carlos
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive a set of coupled equations for the gravitational and electromagnetic perturbation in the Reissner-Nordström geometry using the Newman Penrose formalism. We show that the information of the physical gravitational signal is contained in the Weyl scalar function $Ψ_4$, as is well known, but for the electromagnetic signal the information is encoded in the function $χ$ which relates the perturbations of the radiative Maxwell scalars $φ_2$ and the Weyl scalar $Ψ_3$. In deriving the perturbation equations we do not impose any gauge condition and our analysis contains as a limiting case the results obtained previously for instance in Chandrashekhar's book. In our analysis, we also include the sources for the perturbations and focus on a dust-like charged fluid distribution falling radially into the black hole. Finally, by writing the functions on a basis of spin weighted spherical harmonics and the Reissner-Nordström spacetime in Kerr-Schild type coordinates a hyperbolic system of coupled partial differential equations is presented and numerically solved. In this way, we solve completely a system which generates a gravitational signal as well as an electromagnetic/gravitational one, which sets the basis to find correlations between them and thus facilitating the gravitational wave detection via the electromagnetic signal.
description: 21 pages, 6 figures, 1 table
Observation of Galactic Sources of Very High Energy Gamma-Rays with the MAGIC Telescope
Creators: name: Bartko, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The MAGIC telescope with its 17m diameter mirror is today the largest operating single-dish Imaging Air Cherenkov Telescope (IACT). It is located on the Canary Island La Palma, at an altitude of 2200m above sea level, as part of the Roque de los Muchachos European Northern Observatory. The MAGIC telescope detects celestial very high energy gamma-radiation in the energy band between about 50 GeV and 10 TeV. Since the autumn of 2004 MAGIC has been taking data routinely, observing various objects, like supernova remnants (SNRs), gamma-ray binaries, Pulsars, Active Galactic Nuclei (AGN) and Gamma-ray Bursts (GRB). We briefly describe the observational strategy, the procedure implemented for the data analysis, and discuss the results of observations of Galactic Sources.
description: Brief Review, to be pulished in: Mod. Phys. Lett. A
GROWTH SCENARIOS OF AREA, PRODUCTION AND YIELD OF RICE IN BANGLADESH
Creators: name: Hurunnahar Khushi
name: Md. Moniruzzaman
name: Nazia Tabassum
name: Hurunnahar Khushi
name: Md. Moniruzzaman
name: Nazia Tabassum
Publisher: name: Unknown
Year: 2020
Subjects: Agricultural and Food Policy
Crop Production/Industries

description: Bangladesh is an agro-based developing country where rice is the dominant crop. And it is the staple food for this country. Over the long period, rice production in Bangladesh has been gradually increased, now the country has reached in self-sufficiency in rice production. The study attempted to estimate growth of area, production, and yield of rice in Bangladesh. The semi log model (Log-Lin) was used to estimate the compound growth rates of rice of different seasons. The study was based on secondary data covered from the period 1971/72 to 2015/16.Growth rates were estimated separately for local and high yielding variety, and also, they were estimated together. The growth rate of an area of Aus was found -3.40 percent for the entire period that means an area of Aus cultivation has been decreased on an average 3.40 percent per year and it was statistically significant. And for Aman it was 0.10 percent, but statistically insignificant. On the other hand, it was 4.40 for Boro that means an area of Boro cultivation has been increased 4.40 percent per year which was statistically significant. The growth rate of production of Aus was also significantly negative and it was 1.30 per cent and positive for Aman and Boro rice that were 1.90 and 5.70 percent per year, respectively. The growth rates of area and production of HYV rice (Aus, Aman and Boro) were found positive for every case and negative for local. Growth rates of yield of Aus, Aman and Boro were significantly positive, which were 2.10, 1.80 and 1.30 percent per year, respectively for the entire period. Growth rates were estimated for the different sub-periods dividing the entire period of decades. Examining the reasons for different growth scenarios could be the future research in this connection.
Investigation of Boron Solid-Phase Diffusion from BSG Film Deposited by AP-CVD for Solar Cell Application
Creators: name: Kurachi, I.
name: Yoshioka, K.
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; 1873-1876
description: Boron thermal solid phase diffusion from a boron silicate glass (BSG) film deposited by a
newly developed atmospheric pressure chemical vapor deposition (AP-CVD) system for solar cell application
has been investigated. The system has good thickness uniformity with multi-dispersion heads designed by
process simulation, less metal contamination by SiC trays, and better cost of ownership (CoO) by simple
machine composition. Using this system, P+ layer of about 50ohm/sq. in sheet resistance is achieved after
950°C 20min. diffusion. On the other hands, higher boron concentration in BSG makes sheet resistance
increase and shallower diffusion depth. This anomalous boron diffusion has been analyzed by secondary
ion mass spectroscopy (SIMS) measurement. It is suspected that interface between boron rich layer
(BRL) and bulk silicon works as a barrier to interstitial silicon diffusion and consequently boron diffusion
retardation. However, BRL also works as gettering site and carrier lifetime in bulk silicon is improved.
From these results, optimized boron concentration in BSG and control of diffusion layer formation has
been proposed.
Probabilistic Analysis of Photovoltaic Generation Impacts on Distribution Networks
Creators: name: Tran-Quoc, T.
name: Luu-Ngoc, A.
name: Le Pivert, X.
name: Merten, J.
name: Barruel, F.
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; 4042-4046
description: Connections of the photovoltaic generations to LV networks can raise a certain number of technical
problems, such as effects of intermittent energy production, the overshoot of the thermal limits of conductors or the voltage
problem on the LV network, etc. A better knowledge of the induced constraints becomes necessary in order to determine the
PV penetration level, to assess impacts of PV generation on distribution network and to assess technical and economic
opportunities provided by PV generation.
Thus for the purpose of this work, a probabilistic three phase Load Flow (PLF) program has been developed by using
Monte Carlo techniques by taking into account random variables of load and PV generation. Low voltage rural and urban
networks are used for these studies.
Nonperturbative factorization breaking and color entanglement effects in dihadron and direct photon-hadron angular correlations in p+p and p+A collisions
Creators: name: Osborn, Joseph
Publisher: name: Zenodo
Year: 2018
Subjects: phenix
correlations
cronin effect
centrality
π0
transverse momentum
photon
hadron

description: The work presented here comprises the first ever measurements with the intent to search for effects from processes which are predicted to explicitly break factorization in a TMD framework.
The consequences of the bank levy in Poland
Creators: name: Kapuściński, Mariusz
Publisher: name: figshare
Year: 2021
Subjects: Economics

description: In this study I analyse the effects of a bank levy, as introduced in Poland, on areas which appear to be relevant from the perspective of a central bank. I apply the difference-in-differences method, using bank level panel data. I fnd that the introduction of the bank levy has affected the use of some monetary policy instruments, money market rates and volumes, and deposit and loan rates. However, I find little evidence of its impact on loan volumes, bank proftability, capital and risk-taking. This means that the bank levy has had important implications for monetary policy implementation, interest rate benchmark reform and monetary conditions, but (as yet) less so for financial stability. As an extension of the study I document effects onassets and treasury bond holdings (including their changes at the end of a month), and estimate the impact of bank balance sheet adjustments on government revenues.
"In-System" Fission-Events: An Insight into Puzzles of Exoplanets and Stars?
Creators: name: Tito, Elizabeth P.
name: Pavlov, Vadim I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In expansion of our recent proposal (Physics, 2020, 2, 213-276) that the solar system's evolution occurred in two stages -- during the first stage, the gaseous giants formed (via disk instability), and, during the second stage (caused by an encounter with a particular stellar-object leading to "in-system" fission-driven nucleogenesis), the terrestrial planets formed (via accretion) -- we emphasize here that the mechanism of formation of such stellar-objects is generally universal and therefore encounters of such objects with stellar-systems may have occurred elsewhere across galaxies. If so, their aftereffects may perhaps be observed as puzzling features in the spectra of individual stars (such as idiosyncratic chemical enrichments) and/or in the structures of exoplanetary systems (such as unusually high planet densities or short orbital periods). This paper reviews and reinterprets astronomical data within the "fission-events framework." Classification of stellar systems as "pristine" or "impacted" is offered.
description: Review, 26 pages, 13 figures
The nature of NV absorbers at high redshift
Creators: name: Fechner, C.
name: Richter, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a study of NV absorption systems at 1.5 < z < 2.5 in the optical spectra of 19 QSOs. Our analysis includes both absorbers arising from the intergalactic medium as well as systems in the vicinity of the background quasar. We construct detailed photoionization models to study the physical conditions and abundances in the absorbers and to constrain the spectral hardness of the ionizing radiation. The rate of incidence for intervening NV components is dN/dz = 3.38 +/- 0.43, corresponding to dN/dX = 1.10 +/- 0.14. The column density distribution function is fitted by the slope beta = 1.89 +/- 0.22, consistent with measurements for CIV and OVI. The narrow line widths (b_NV ~ 6 km/s) imply photoionization rather than collisions as dominating ionization process. The column densities of CIV and NV are correlated but show different slopes for intervening and associated absorbers, which indicates different ionizing spectra. Associated systems are found to be more metal-rich, denser, and more compact than intervening absorbers. This conclusion is independent of the adopted ionizing radiation. For the intervening NV systems we find typical values of [C/H] ~ -0.6 and n_H ~ 10^-3.6 cm^-3, and sizes of a few kpc, while for associated NV absorbers we obtain [C/H] ~ +0.7, n_H ~ 10^-2.8 cm^-3, and sizes of several 10 pc. The abundance of nitrogen relative to carbon [N/C] and alpha-elements like oxygen and silicon [N/alpha] is correlated with [N/H], indicating the enrichment by secondary nitrogen. The larger scatter in [N/alpha] in intervening systems suggests an inhomogeneous enrichment of the IGM. There is an anti-correlation between [N/alpha] and [alpha/C], which could be used to constrain the initial mass function of the carbon- and nitrogen-producing stellar population.
description: accepted by A&A, revised version
"Forging an Identity": The Representation of Women in Jewish Museums
Creators: name: Rabinowitz, Rachel Shayna
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: Judaic studies
subject: Museum studies
subject: Women's studies

description: Museums reflect the way a society looks at the past, but upon closer examination this reflection is bidirectional; museums are shaped by our current social norms and culture as much as built on our past. From their inception, museums have refined the public's understanding of the world around them. Through an analysis of six Jewish museums and their portrayal of Jewish women, it will become clear how museums are a reflection of society.
Cosmic structures via Bose Einstein condensation and its collapse
Creators: name: Fukuyama, Takeshi
name: Morikawa, Masahiro
name: Tatekawa, Takayuki
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We develop our novel model of cosmology based on the Bose-Einstein condensation. This model unifies the Dark Energy and the Dark Matter, and predicts multiple collapse of condensation, followed by the final acceleration regime of cosmic expansion. We first explore the generality of this model, especially the constraints on the boson mass and condensation conditions. We further argue the robustness of this model over the wide range of parameters of mass, self coupling constant and the condensation rate. Then the dynamics of BEC collapse and the preferred scale of the collapse are studied. Finally, we describe possible observational tests of our model, especially, the periodicity of the collapses and the gravitational wave associated with them.
description: 21 pages, 5 figures
A 2 day orbital period for a redback millisecond pulsar candidate in the globular cluster NGC 6397
Creators: name: Marcano, Manuel Pichardo
name: Sandoval, L. E. Rivera
name: Maccarone, Thomas J.
name: Zhao, Yue
name: Heinke, Craig O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report optical modulation of the companion to the X-ray source U18 in the globular cluster NGC 6397. U18, with combined evidence from radio and X-ray measurements, is a strong candidate as the second redback in this cluster, initially missed in pulsar searches. This object is a bright variable star with an anomalous red color and optical variability (\sim 0.2 mag in amplitude) with a periodicity \sim 1.96 days that can be interpreted as the orbital period. This value corresponds to the longest orbital period for known redback candidates and confirmed systems in Galactic globular clusters and one of the few with a period longer than 1 day.
description: Accepted for publication as a letter in MNRAS
Emergence of long memory in stock volatility from a modified Mike-Farmer model
Creators: name: Gu, Gao-Feng
name: Zhou, Wei-Xing
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: The Mike-Farmer (MF) model was constructed empirically based on the continuous double auction mechanism in an order-driven market, which can successfully reproduce the cubic law of returns and the diffusive behavior of stock prices at the transaction level. However, the volatility (defined by absolute return) in the MF model does not show sound long memory. We propose a modified version of the MF model by including a new ingredient, that is, long memory in the aggressiveness (quantified by the relative prices) of incoming orders, which is an important stylized fact identified by analyzing the order flows of 23 liquid Chinese stocks. Long memory emerges in the volatility synthesized from the modified MF model with the DFA scaling exponent close to 0.76, and the cubic law of returns and the diffusive behavior of prices are also produced at the same time. We also find that the long memory of order signs has no impact on the long memory property of volatility, and the memory effect of order aggressiveness has little impact on the diffusiveness of stock prices.
description: 6 pages, 6 figures and 1 table
Fermionic corrections to quark and gluon form factors in four-loop QCD
Creators: name: Lee, Roman N.
name: von Manteuffel, Andreas
name: Schabinger, Robert M.
name: Smirnov, Alexander V.
name: Smirnov, Vladimir A.
name: Steinhauser, Matthias
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analytically compute all four-loop QCD corrections to the photon-quark and Higgs-gluon form factors involving a closed massless fermion loop. Our calculation of non-planar vertex integrals confirms a previous conjecture for the analytical form of the non-fermionic contributions to the collinear anomalous dimensions of quarks and gluons.
description: 7 pages, 1 figure
High Efficiency Aluminum-Rear-Emitter n-Type Silicon Solar Cells with Inline Phosphorus Diffusion Process on the Front Surface
Creators: name: Xi, X.
name: Wu, W.
name: Gao, F.
name: Tang, N.
name: Wang, Z.
name: Chen, L.
name: Jiang, Y.
name: Zhu, H.
name: Yang, J.
name: Chen, R.
name: Ji, J.
name: Zhang, G.
name: Shi, Z.
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; 1531-1533
description: A similar process as that of current industrial p-type cells was adopted in this paper to fabricate large area
(148.58 cm2) n-type czochralski silicon solar cells with phosphorous front surface field (FSF) and aluminum rear emitter.
Since rear emitter and FSF characterization are two crucial factors for aluminum back junction n-type cells, the emphasis
of this paperis focused on the fabrication of FSF. Diffusion tubes are used in normal production process. In this paper,
inline diffusion process used for solar cell production is utilized. A kind of nontoxic and low corrosive phosphorous
source is sprayed on the surface of silicon wafers. And then the wafers are transported inline into a high temperature
nitrogen atmosphere by an alloy belt. After inline diffusion, the unevenness of sheet resistance can be decreased to below
2%, the efficiency of the aluminum-rear-emitter N-type cells using inline phosphorus diffusion is a little higher than that
of the cells diffused in tubes which may be attribute to the excellent uniformity. A high open-circuit voltage of 648 mV
and a high fill factor of 0.818 were obtained. The highest efficiency of 19.8% has been achieved which was
independently confirmed by SERIS (Solar Energy Research Institute of Singapore).
Loss of entanglement in quantum mechanics due to the use of realistic measuring rods
Creators: name: Gambini, Rodolfo
name: Porto, Rafael A.
name: Pullin, Jorge
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that the use of real measuring rods in quantum mechanics places a fundamental gravitational limit to the level of entanglement that one can ultimately achieve in quantum systems. The result can be seen as a direct consequence of the fundamental gravitational limitations in the measurements of length and time in realistic physical systems. The effect may have implications for long distance teleportation and the measurement problem in quantum mechanics.
description: 6 pages, RevTex, no figures, small changes, published version
Solving the Coagulation Equation by the Moments Method
Creators: name: Estrada, Paul R.
name: Cuzzi, Jeffrey N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We demonstrate an approach to solving the coagulation equation that involves using a finite number of moments of the particle size distribution. This approach is particularly useful when only general properties of the distribution, and their time evolution, are needed. The numerical solution to the integro-differential Smoluchowski coagulation equation at every time step, for every particle size, and at every spatial location is computationally expensive, and serves as the primary bottleneck in running evolutionary models over long periods of time. The advantage of using the moments method comes in the computational time savings gained from only tracking the time rate of change of the moments, as opposed to tracking the entire mass histogram which can contain hundreds or thousands of bins depending on the desired accuracy. The collision kernels of the coagulation equation contain all the necessary information about particle relative velocities, cross-sections, and sticking coefficients. We show how arbitrary collision kernels may be treated. We discuss particle relative velocities in both turbulent and non-turbulent regimes. We present examples of this approach that utilize different collision kernels and find good agreement between the moment solutions and the moments as calculated from direct integration of the coagulation equation. As practical applications, we demonstrate how the moments method can be used to track the evolving opacity, and also indicate how one may incorporate porous particles.
description: 35 pages, 6 figures, accepted for publication to The Astrophysical Journal
Periodic patterns displace active phase separation
Creators: name: Thomsen, Frederik J.
name: Rapp, Lisa
name: Bergmann, Fabian
name: Zimmermann, Walter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: In this work we identify and investigate a novel bifurcation in conserved systems. This secondary bifurcation stops active phase separation in its nonlinear regime. It is then either replaced by an extended, system-filling, spatially periodic pattern or, in a complementary parameter region, by a novel hybrid state with spatially alternating homogeneous and periodic states. The transition from phase separation to extended spatially periodic patterns is hysteretic. We show that the resulting patterns are multistable, as they show stability beyond the bifurcation for different wavenumbers belonging to a wavenumber band. The transition from active phase separation to the hybrid states is continuous. Both transition scenarios are systems-spanning phenomena in particle conserving systems. They are predicted with a generic dissipative model introduced in this work. Candidates for specific systems, in which these generic secondary transitions are likely to occur, are, for example, generalized models for motility-induced phase separation in active Brownian particles, models for cell division or chemotactic systems with conserved particle dynamics.
description: 17 pages, 7 figures
The New Generation Planetary Population Synthesis (NGPPS). V. Predetermination of planet types in global core accretion models
Creators: name: Schlecker, M.
name: Pham, D.
name: Burn, R.
name: Alibert, Y.
name: Mordasini, C.
name: Emsenhuber, A.
name: Klahr, H.
name: Henning, Th.
name: Mishra, L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: State-of-the-art planet formation models are now capable of accounting for the full spectrum of known planet types. This comes at the cost of increasing complexity of the models, which calls into question whether established links between their initial conditions and the calculated planetary observables are preserved. In this paper, we take a data-driven approach to investigate the relations between clusters of synthetic planets with similar properties and their formation history. We trained a Gaussian Mixture Model on typical exoplanet observables computed by a global model of planet formation to identify clusters of similar planets. We then traced back the formation histories of the planets associated with them. Using cluster affiliation as labels, we trained a Random Forest classifier to predict planet species from properties of the originating protoplanetary disk. Without presupposing any planet types, we identified four distinct classes in our synthetic population. They roughly correspond to the observed populations of (sub-)Neptunes, giant planets, and (super-)Earths, plus an additional unobserved class we denote as "icy cores". These groups emerge already within the first 0.1 Myr of the formation phase and are predicted from disk properties with an overall accuracy of >90%. The most reliable predictors are the initial orbital distance of planetary nuclei and the total planetesimal mass available. Giant planets form only in a particular region of this parameter space that is in agreement with purely analytical predictions. Including N-body interactions between the planets decreases the predictability, especially for sub-Neptunes that frequently undergo giant collisions and turn into super-Earths. The impact of gravitational interactions highlights the need for N-body integrators for realistic predictions of systems of low-mass planets. (abridged)
description: 21 pages, 16 figures. Accepted for publication in Astronomy & Astrophysics
Bounds on Unparticles from the Higgs Sector
Creators: name: Fox, Patrick J.
name: Rajaraman, Arvind
name: Shirman, Yuri
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study supersymmetric QCD in the conformal window as a laboratory for unparticle physics, and analyze couplings between the unparticle sector and the Higgs sector. These couplings can lead to the unparticle sector being pushed away from its scale invariant fixed point. We show that this implies that low energy experiments will not be able to see unparticle physics, and the best hope of seeing unparticles is in high energy collider experiments such as the Tevatron and the LHC. We also demonstrate how the breaking of scale invariance could be observed at these experiments.
description: 9 pages, 3 figures