cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spectral estimates of the $p$-Laplace Neumann operator in conformal regular domains
Creators: name: Gol'dshtein, Vladimir
name: Ukhlov, Alexander
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper we study spectral estimates of the $p$-Laplace Neumann operator in conformal regular domains $Ω\subset\mathbb R^2$. This study is based on (weighted) Poincaré-Sobolev inequalities. The main technical tool is the composition operators theory in relation with the Brennan's conjecture. We prove that if the Brennan's conjecture holds then for any $p\in (4/3,2)$ and $r\in (1,p/(2-p))$ the weighted $(r,p)$-Poincare-Sobolev inequality holds with the constant depending on the conformal geometry of $Ω$. As a consequence we obtain classical Poincare-Sobolev inequalities and spectral estimates for the first nontrivial eigenvalue of the $p$-Laplace Neumann operator for conformal regular domains.
description: 15 pages
Wafer Transport via Conveyor Belts – Influencing Parameters and Resulting Impact
Creators: name: Wertz, R.
name: Giesen, T.
name: Mayer, P.
name: Böttinger, F.
name: Verl, A.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Manufacturing Issues and Processing

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1748-1751
description: Despite being seen as a non-value adding process, gentle handling of thin and ultra-thin (~50μm)
substrates is one key factor for efficient production as it directly effects some of the key performance indicators on
factory level, such as throughput and mechanical yield. For not being a bottleneck, conveyor belt systems should
transport single substrates within cycle times of less than one second. Several impacting parameters influence the
performance. One major issue can be seen in the aging of the belts and the resulting decrease of sticking friction. For
not jeopardizing the positioning accuracy, dynamic parameter settings of the motors have to be adapted over the
lifetime. Based on the results gathered by running several test batches, it is now possible to run the system over the
whole life time at optimal point of operation while meeting all boundary conditions resolving from time, cost and
quality aspects.
A short and simple proof of the Jurkat--Waterman theorem on conjugate functions
Creators: name: Lebedev, V. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: It is well--known that certain properties of continuous functions on the circle $\mathbb T$, related to the Fourier expansion, can be improved by a change of variable, i.e., by a homeomorphism of the circle onto itself. One of the results in this area is the Jurkat--Waterman theorem on conjugate functions, which improves the classical Bohr--Pál theorem. In the present work we provide a short and technically very simple proof of the Jurkat--Waterman theorem. Our approach yields a stronger result.
title: The Effects of Chemical Secretions by Millipedes on Anting Behaviour in Birds and Other Animals
Creators: name: Fraser, Theo
Publisher: name: Old Dominion University Libraries
Year: 2023

description: Birds perform a behavior known as anting in which they actively rub ants in their feathers or allow ants to crawl over their bodies. Several hypotheses have been proposed to explain this behavior, but no one hypothesis can account for all cases of anting that have been observed. Anting behavior has been recorded in species other than birds including primates, and substances other than ants such as millipedes may be used. This paper explores the use of millipedes in anting by birds, capuchin monkeys and lemurs. The three hypotheses supported by these studies include 1) anting serves as food preparation to remove toxic chemicals from the millipedes, 2) millipede secretions are used to repel ectoparasites, and 3) millipede secretions are used to treat gastrointestinal parasites in primates as a form of self-medication.
NLO QCD and electroweak corrections to $ZZ+{\rm jet}$ production with $Z$-boson leptonic decays at LHC
Creators: name: Yong, Wang
name: Ren-You, Zhang
name: Wen-Gan, Ma
name: Xiao-Zhou, Li
name: Lei, Guo
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we present the full NLO QCD + NLO EW corrections to the $Z$-boson pair production in association with a hard jet at the LHC. The subsequent $Z$-boson leptonic decays are included by adopting both the naive NWA and MadSpin methods for comparison. Since the $ZZ+{\rm jet}$ production is an important background for single Higgs boson production and new physics search at hadron colliders, the theoretical predictions with high accuracy for the hadronic production of $ZZ+{\rm jet}$ are necessary. We present the numerical results of the integrated cross section and various kinematic distributions of final particles, and conclude that it is necessary to take into account the spin correlation and finite width effects from the $Z$-boson leptonic decays. We also find that the NLO EW correction is quantitatively nonnegligible in matching the experimental accuracy at the LHC, particularly is significant in high transverse momentum region.
description: 22 pages, 9 figures
Automated In-Line Silicon Solar Cells Reparation Based on Laser Processing
Creators: name: Barinka, R.
name: Barinkova, P.
name: Schmauder, J.
name: Kopecek, R.
name: Bollar, A.
name: Koumanakos, D.
name: Otero, N.
name: Romero, P.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Manufacturing Issues and Processing

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1757-1760
description: The development of a laser-based techniques for automatic repairing of defective crystalline silicon
solar cells and wafers within the manufacturing line was done. The work was conducted in the frame of EU project
REPTILE (grant agreement no° 286955) financially supported by the European Union through the Seventh
Framework Programme (FP7 / 2007-2013).
The development of a laser-based techniques for automatic repairing of defective crystalline silicon solar cells and
wafers within the manufacturing line was done.
The designed system is able to analyse type of defects in the structure of rejected solar cells and to choose the way of
reparation or their further utilization. The electroluminescence technique is used for defects analysis. Localized
defects can be automatically isolated by laser beam, defective areas can be cut-out or solar cells can by down-sized.
The system can be used also for downsizing of rejected wafers for further solar cells processing. Reparation process
is based on computer calculation of the best geometry for maximum efficiency and minimum waste of material.
The experimental machine was constructed, optimized and tested on the batches of rejected wafers and solar cells
coming from several producers. Repaired solar cells and cells produced from rejected wafers were used also for
construction of solar modules with alternative structure design. Results of cells reparation and results of REPTILE
modules characterization are presented.
Máster online de Astrofísica y Técnicas de Observación
Creators: name: Baena-Gallé, Roberto
Publisher: name: Zenodo
Year: 2022
Subjects: Enseñanza

description: En el curso 2021/2022 se implantó el Máster Universitario de Astrofísica y Técnicas de Observación en Astronomía de la Universidad Internacional de la Rioja (UNIR). Este máster se estructura en 1 año académico y 60 créditos ECTS, 12 de ellos destinados a la realización de un trabajo final de máster. Son estudios oficiales de nivel MECES 3 que proporcionan acceso a programas de doctorado. El máster está diseñado para dar una visión amplia de numerosos procesos astrofísicos que se dan en la naturaleza así como de la instrumentación y de las principales técnicas de reducción de datos, de cara a que estos estudios sean el inicio de una carrera profesional centrada en la astrofísica y la astronomía, por ejemplo, como investigador, divulgador científico, etc. La principal particularidad de la UNIR es su metodología puramente online. De este modo, desde cualquier ordenador portátil, los estudiantes pueden acceder a materiales en pdf, píldoras grabadas e interactuar en vivo con el profesorado en clases en directo y a través de un foro. La docencia online presenta numerosas ventajas para extender el conocimiento anulando las distancias geográficas. Así pues, en su primer año de docencia, el máster de astrofísica de la UNIR ha sido impartido a estudiantes residentes en España, Panamá, Ecuador, Chile, etc. Uno de los ejemplos más evidentes de que dicha metodología no supone ningún hándicap formativo está en el hecho de haber ofertado el acceso a instalaciones astronómicas en modo remoto para que los estudiantes adquirieran por ellos mismos sus propias imágenes desde sus domicilios. Para más información pueden visitar la página web oficial de estos estudios en: https://www.unir.net/ingenieria/master-astrofisica-astronomia/
HF-O3-H2O- Mixtures for Cleaning and Etching sg-Silicon Materials - Removal of Metal Contaminations
Creators: name: Gondek, C.
name: Hanich, R.
name: Lippold, M.
name: Buchholz, F.
name: Röver, I.
name: Kroke, E.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Manufacturing Issues and Processing

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1778-1781
description: In the present study, HF-O3-H2O- mixtures for etching and cleaning solar-grade (sg) silicon were
investigated. The reactivity towards (100) silicon was determined and discussed over a wide concentration range.
Reactivity was studied concerning HF concentration, physically dissolved ozone content and ozone injection system.
For ozone injection two systems were used. On the one hand ozone is injected by direct bubbling of ozone gas
through etching mixture, on the other hand via an ozone contactor membrane. Resulting surface morphologies are
characterized by scanning electron and laser scanning microscopy. Cleaning performance is tested on fine grained sgsilicon and on saw damage etched silicon wafers. Cleaning of silicon wafers is evaluated by VOC and lifetime
measurements and compared to standard reference cleaning. Promising cleaning results were obtained.
Reductions of Gauss-Codazzi equations
Creators: name: Conte, Robert
name: Grundland, A. Michel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37K15, 53A05, 58F07

description: We prove that conformally parametrized surfaces in Euclidean space $\Rcubec$ of curvature $c$ admit a symmetry reduction of their Gauss-Codazzi equations whose general solution is expressed with the sixth Painlevé function. Moreover, it is shown that the two known solutions of this type (Bonnet 1867, Bobenko, Eitner and Kitaev 1997) can be recovered by such a reduction.
description: 25 pages, to appear, Studies in applied mathematics
Pilling Strength Behavior in the Different Bus Bar Design and Soldering Tools for Solar Cell Soldering
Creators: name: Chung, W.-T.
name: Lin, T.-Y.
name: Wu, C.-K.
name: Lee, W.-C.
name: Chen, C.-W.
name: Wu, C.-H.
name: Hsieh, P.-T.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Manufacturing Issues and Processing

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1768-1769
description: During the last years, the new soldering technique is developed for connecting the silicon crystalline solar cell and module in
the industry such as the new bus bar pattern designs and the various soldering tools. Cu-ribbon is the main interconnector to string solar cells and conducts the electricity from solar cells to the solar cell module. Soldering process is a critical technique to soldering reliability and efficiency. This paper presents the soldering results in the different bus bar design and in the various soldering equipment. The result shows that the rougher surface on the bus bar has the stronger pilling strength in this study.
Choeroniscus minor
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Choeroniscus
Choeroniscus minor

description: Choeroniscus minor (Peters, 1868). Monatsb. K. Preuss. Akad. Wiss. Berlin, 1868:366. TYPE LOCALITY: Surinam. DISTRIBUTION: Guianas, Venezuela, N Brazil, C Colombia, Ecuador, Peru, Bolivia. SYNONYMS: inca. COMMENTS: Includes inca; see Koopman (1978b:8) and Jones and Carter (1979:8).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 184, DOI: 10.5281/zenodo.7353060
description: {"references": ["Koopman, K. F. 1978 b. Zoogeography of Peruvian bats with special emphasis on the role of the Andes. American Museum Novitates, 2651: 1 - 33.", "Jones, J. K., Jr., and D. C. Carter. 1979. Systematic and distributional notes. Pp. 7 - 11, in Biology of bats of the New World family Phyllostomatidae, Part III. (R. J. Baker, J. K. Jones, Jr., and D. C. Carter, eds.). Special Publications, The Museum, Texas Tech University Press, 16: 1 - 441."]}
รูปแบบการสร้างเสริมสุขภาพครูในโรงเรียนมัธยมศึกษาแห่งหนึ่งในภาคตะวันออก
Creators: name: ทนงศักดิ์ ยิ่งรัตนสุข
Publisher: name: กองนวัตกรรมและวิจัย กรมควบคุมโรค
Year: 2563
Subjects: การสร้างเสริมสุขภาพ
คุณภาพชีวิตด้านสุขภาพ
ครู

description: วารสารควบคุมโรค, 46, 2, 185-194
NASA's Pandora SmallSat Mission: Multiwavelength Characterization of Exoplanets and Their Host Stars
Creators: name: Hord, Benjamin
name: Quintana, Elisa
name: Dotson, Jessie
name: Colón, Knicole
name: Barclay, Thomas
Publisher: name: Zenodo
Year: 2024
Subjects: TESS synergies with space missions and Surveys
Future Missions
Exoplanets
Exoplanet Atmospheres
Stars
Stellar Activity

description: The Pandora SmallSat is a NASA mission set to launch in 2025 and is designed to investigate the atmospheres of transiting exoplanets using transmission spectroscopy. From the outset, TESS was intended to find many of the exoplanets most amenable to this technique, and it has with the discovery of a significant fraction of the exoplanet targets with approved JWST programs. However, high-precision transmission spectroscopy measurements are easily contaminated by the presence of star spots, possibly making the origin of spectral features ambiguous. Pandora will address this stellar contamination issue through simultaneous long-duration, visible-light photometric observations and near-IR spectra. These simultaneous multiwavelength observations will constrain spot covering fractions of exoplanet host stars, disentangling the star and planet signals in transmission spectra to more reliably determine planetary atmosphere compositions. Pandora will observe at least 20 Earth- to Jupiter-sized exoplanets on orbits around host stars spanning late G through M spectral types. We will present a mission status update, an overview of the science goals, target selection, observing strategy, and synergies with TESS and other observing facilities.
Low Cost Industrial PERC Solar Cell: Cost Viability Versus Solar Cell Based on Current Screen Printing BSF-Al
Creators: name: Vázquez, C.
name: Caballero, L.J.
name: López Escalante, M.
name: Sierras, R.
name: Alonso, J.
name: Navarrete, E.
name: Ramos-Barrado, J.R.
name: Gutiérrez, R.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Manufacturing Issues and Processing

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1770-1773
description: Silicon solar cells with Passivated Emitter and Rear Contacts (PERC) were developed by Blakers et al.
at UNSW in 1988. By means of complex processing, the PERC structure reached an efficiency of 22.3% [1]. Since
many years, the main disadvantage of this technology has been that operation cost for manufacturing at industrial
level, has been much higher than the standard n+pp+ silicon solar cells made by screen printed aluminum BSF. In this
work a method for manufacturing a PERC solar cell in an effective way is presented. With only minor modifications
in the equipment at one manufacturing step, and by adding a new process before the metallization, it is showed the
possibility to make i-PERC solar cells. Only process adjustments were required in the rest of the process.
Methods for solution of boundary value problems in domains with disconnected boundaries
Creators: name: Traytak, Sergey D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We present here a review of existing analytical methods to solve boundary value problems of diffusion in media containing N non-overlapping inclusions.
description: in Russian
การประเมินมาตรฐานการจัดบริการอาชีวอนามัยให้กับแรงงานในชุมชนของหน่วยบริการสุขภาพปฐมภูมิ พื้นที่สำนักงานป้องกันควบคุมโรคที่ 10 จังหวัดอุบลราชธานี
Creators: name: วงศกร อังคะคำมูล
Publisher: name: กองนวัตกรรมและวิจัย กรมควบคุมโรค
Year: 2563
Subjects: การจัดบริการอาชีวอนามัย
หน่วยบริการสุขภาพปฐมภูมิ
การประเมินผลการดำเนินงาน

description: วารสารควบคุมโรค, 46, 2, 195-205
Does intrauterine hypoxia predispose to sudden infant death syndrome
Creators: name: Cooper, Rosalie.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Analysis and Simulation of Cracks in PV Cells under Environmental Thermal and Load Conditions
Creators: name: Al Ahmar, J.
name: Wiese, S.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Characterisation and Modelling

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1706-1709
description: In this work silicon based solar cells with preexisting cracks are considered. The main goal is to
analyse the progressing of cracks in the cells under different enviromental loads. This enables to estimate critical
crack sizes and the reaction of the cells with the different load types and so reduce the losses and improve realibility.
A 2D finite element model of encapsulated silicon solar cells containing cracks has been created using ANSYS v13.
Special crack tip elements were used to capture the singularity of the fields at this region. Linear elastic fracture
mechanics (LEFM) theory is applied and the corresponding stress intensity factors (SIFs) are estimated. Those values
reflect the intensity of the fields on the crack tip and comparing them to the fracture toughness of the material leads to
the knowledge about the crack propagation.
Dynamics of compressional Mach cones in a strongly coupled complex plasma
Creators: name: Bandyopadhyay, P.
name: Dey, R.
name: Kadyan, Sangeeta
name: Sen, Abhijit
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Using a Generalised-Hydrodynamic (GH) fluid model we study the influence of strong coupling induced modification of the fluid compressibility on the dynamics of compressional Mach cones in a dusty plasma medium. A significant structural change of lateral wakes for a given Mach number and Epstein drag force is found in the strongly coupled regime. With the increase of fluid compressibility, the peak amplitude of the normalised perturbed dust density first increases and then decreases monotonically after reaching its maximum value. It is also noticed that the opening angle of the cone structure decreases with the increase of the compressibility of the medium and the arm of the Mach cone breaks up into small structures in the velocity vector profile when the coupling between the dust particles increases.
description: 8 pages with 5 figures
ประสิทธิผลของโปรแกรมช่วยเลิกบุหรี่ในสถานบริการสาธารณสุข ในจังหวัดนครราชสีมา
Creators: name: ปานทิพย์ โชติเบญจมาภรณ์
Publisher: name: กองนวัตกรรมและวิจัย กรมควบคุมโรค
Year: 2563
Subjects: การช่วยเลิกบุหรี่
วาเร็นนิคลีน

description: วารสารควบคุมโรค, 46, 2, 266-218
Human Atlas: A Tool for Mapping Social Networks
Creators: name: Saveski, Martin
name: Chu, Eric
name: Vosoughi, Soroush
name: Roy, Deb
Publisher: name: arXiv
Year: 2016
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: H.5.2, H.3.4

description: Most social network analyses focus on online social networks. While these networks encode important aspects of our lives they fail to capture many real-world connections. Most of these connections are, in fact, public and known to the members of the community. Mapping them is a task very suitable for crowdsourcing: it is easily broken down in many simple and independent subtasks. Due to the nature of social networks -- presence of highly connected nodes and tightly knit groups -- if we allow users to map their immediate connections and the connections between them, we will need few participants to map most connections within a community. To this end, we built the Human Atlas, a web-based tool for mapping social networks. To test it, we partially mapped the social network of the MIT Media Lab. We ran a user study and invited members of the community to use the tool. In 4.6 man-hours, 22 participants mapped 984 connections within the lab, demonstrating the potential of the tool.
description: WWW'16 Demonstration, WWW'16 Companion, April 11-15, 2016, Montreal, Quebec, Canada
The European JWST archive and associated tools
Creators: name: Labiano, Alvaro
name: Marston, Anthony
name: López-Caniego, Marcos
name: Arévalo, María
name: Espinosa, Javier
name: Ballester, Javier
Publisher: name: Zenodo
Year: 2022

description: The European archive of the James Webb Space Telescope (eJWST) is designed to be a service to the European scientific community but open to all scientists around the world, enabling the most direct and useful access to the JWST science data products. At the ESAC Science Data Centre (ESDC), we have developed a graphical user interface to access both private and public JWST observations. We describe the graphical user interface and the integration of ESASky to allow users to put JWST observations data and metadata in the context of multi-wavelength science, and several tools developed for quick exploration of data cubes and images.
Excellent Commercial Solar Cells with Local Back Surface Field and Lightly Doped Emitter
Creators: name: Chen, S.-Y.
name: Lin, Y.-H.
name: Hsu, S.-P.
name: Wang, Y.-Y.
name: Du, C.-H.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Manufacturing Issues and Processing

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1745-1747
description: As we all know that the carrier lifetime of silicon wafer will directly demonstrate the solar cell
performance. For the rear side, the surface recombination rate can be improved by passivation and then the local contact
was used for keeping the passivation effect. This was so called the local back surface field (LBSF). For improving the
front side surface passivation, the lightly doped emitter (LDE) was necessary. In this paper, we present a feasible
approach for solar cells which combining LBSF with LDE. Firstly, the LDE was formed on the surface of textured wafer
by POCl3 diffusion and the anti-reflective layer was deposited sequentially. After removing rear n-layer and polishing
rear surface simultaneously, the passivated stack layer was deposited and then drilled with line pattern by laser opening.
Finally, the specific LDE silver paste and LBSF aluminum paste were printed on the front and back side respectively and
then the metallization was carried out during co-firing process. The best cell efficiency of 20.11% was demonstrated in
this study for LDE/LBSF solar cell with an area 156×156mm2. Compare to LDE/LBSF cells and standard solar cells, the
1.25% efficiency gain was showed due to the surface passivation. The photovoltaic characteristics indicate that surface passivation is useful and necessary for high efficient solar cells.
Choeroniscus periosus Handley 1966
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Choeroniscus
Choeroniscus periosus

description: Choeroniscus periosus Handley, 1966. Proc. Biol. Soc. Washington, 79:84. TYPE LOCALITY: Colombia, Valle, 27 km S Buenaventura, Rio Raposo. DISTRIBUTION: W Colombia, W Ecuador.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 184, DOI: 10.5281/zenodo.7353060
Material Limitations due to Crucible Impurities in Multicrystalline Silicon for High Efficiency Solar Cells
Creators: name: Schindler, F.
name: Michl, B.
name: Schön, J.
name: Kwapil, W.
name: Warta, W.
name: Schubert, M.C.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Characterisation and Modelling

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1710-1714
description: For the fabrication of high efficiency silicon solar cells, bulk material with low recombination losses is
required. Crystal defects and impurities from feedstock and crucible system harm the electrical material quality of
multicrystalline silicon wafers. In this work, spatially resolved efficiency losses in multicrystalline silicon are estimated
from injection-dependent bulk lifetime measurements, and the impact of decorated crystal defects, dissolved
impurities and impurities diffused into the crystallized silicon by solid-state diffusion is quantified. The high-temperature
steps of two solar cell processes, a standard PERC process and a high efficiency approach, are applied to two
different p-type multicrystalline silicon materials: One block was crystallized in a G1 sized crucible of industrial material
quality and the other in a crucible of very pure electrically fused silica. The high purity wafers allow higher efficiencies
than the wafers from the standard crucible after both cell processes and profit from a larger efficiency boost
achieved by the high efficiency process. An efficiency gain of 0.5% absolute is estimated to be attainable on wafers
including a block edge by using a high purity crucible.
Photoluminescence Lifetime Characterization with Low Pressure Sodium Lamps
Creators: name: Bailly, M.
name: Herasimenka, S.
name: Bowden, S.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Characterisation and Modelling

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1719-1722
description: Photoluminescence (PL) is a fast useful tool for the characterization of minority carrier lifetimes in silicon wafers
and solar cells. Low pressure sodium (LPS) bulbs have a single emission line at 590 nm that is ideally suited as a light source for
a low cost photoluminescence system. The large difference in wavelength between the excitation at 590 nm and the silicon
luminescence at 1150 nm simplifies the long pass camera filter. The lamps are very low cost and use simple ballasts similar to
fluorescent light fixtures. The light is safe so that the systems do not require the complex shielding and interlocks needed by the
class IV lasers typically used as PL illumination systems. We demonstrate that the sodium light sources are especially useful in
the characterization of heterostructure solar cells where the surfaces play a key role in process optimization.
title: Assessing the Frequency and Severity of Malware Attacks: An Exploratory Analysis of the Advisen Cyber Loss Dataset
Creators: name: Abdelmagid, Ahmed M.
name: Javadnejad, Farshid
name: Pinto, C. Ariel
name: McShane, Michael K.
name: Diaz, Rafael
name: Gartell, Elijah
Publisher: name: Old Dominion University Libraries
Year: 2023

description: n today's business landscape, cyberattacks present a significant threat that can lead to severe financial losses and damage to a company's reputation. To mitigate this risk, it is essential for stakeholders to have an understanding of the latest types and patterns of cyberattacks. The primary objective of this research is to provide this knowledge by utilizing the Advisen cyber loss dataset, which comprises over 137,000 cyber incidents that occurred across various industry sectors from 2013 to 2020. By using text mining techniques, this paper will conduct an exploratory data analysis to identify the most common types of malware, including ransomware. Furthermore, the study will include a likelihood and severity analysis to evaluate the financial impact of these cyberattacks on businesses. Ultimately, this study aims to shed light on the prevalence and financial repercussions of malware incidents and provide businesses with valuable insights to help develop effective cybersecurity strategies.
The Simulation of Directional Solidification of Mono-Like Silicon
Creators: name: Lian, S.-S.
name: Feng, F.-J.
name: Tsao, S.
name: Hsieh, C.-K.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Characterisation and Modelling

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1698-1701
description: Wafer-based crystalline silicon solar cell is still a main product in the market of solar energy due to the fact
that it is a clean, pollution-free and low-cost raw material. Among them directional controlled solidified Silicon (DS)
have the advantage of low manufacturing cost, compared to sigle crystal silicon solar cells. However, their qualities and
photoelectric conversion energies are lower than those of single crystal solar cells. In order to improve their qualities and
photoelectric conversion efficiency, mono-like DS polycrystalline silicon began to be developed and enter into the solar
cell market.
In order to realize the relationship between the process parameters of DS casting and quality control (such as
crystallization size ),simulation of mono-like DS crystallization has been carried out and verified with the experiment.
The temperature field of DS crystallization has been first calculated with the proposed process parameters. Different size
of cooling blocks and positions of crucible have been studied. The experimental distance between molten pools to bottom
of crucible has been measured and compared to the simulated results.
Resonable correlation has been found between the experimental values and calculated data, and will be thoroughly
discussed in the paper.
Gripping-in-Liquid: Handling Challenges for Automated Ultra-Thin Wafer Production
Creators: name: Giesen, T.
name: Mayer, P.
name: Stiels, D.
name: Wertz, R.
name: Martini, R.
name: Debucquoy, M.
name: Verl, A.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Manufacturing Issues and Processing

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1726-1731
description: New approaches for future photovoltaic cell concepts issue a challenge to crystalline wafer handling.
Especially concepts based on ultra-thin silicon wafers force automation developers to look even beyond the aims of
the international PV manufacturing roadmap. As widely known, crystalline photovoltaic wafers are a very sensitive
object for industrial production, especially for gripper-based handling solutions. The known wafering method
“SLliM-cut” requires an additional cleaning step after a single wafer was detached from the parent substrate. To clean
organic residues off substrates an etching bath is applied. In general, the investigation takes a look on the potential
threads for thin foils such as cleaning a particle contamination off the substrate`s surface. The paper further discusses
the opportunities and limits for the automated handling of ultra-thin objects in cleaning baths and presents an
approach for a high-volume process control. The tested gripping principles and processing parameters for underwater
gripping of ultra-thin wafers and the opportunities for withdrawing the ultra-thin wafers out of a liquid are presented.
Choeronycteris Tschudi 1844
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Choeronycteris

description: Choeronycteris Tschudi, 1844. Fauna Peruana, 1:70. TYPE SPECIES: Choeronycteris mexicana Tschudi, 1844.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 184, DOI: 10.5281/zenodo.7353060
Distribution of Crystal Imperfections through a Silicon Ingot
Creators: name: Flø, A.S.
name: Burud, I.
name: Kvaal, K.
name: Stensrud Marstein, E.S.
name: Søndenå, R.
name: Olsen, E.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Characterisation and Modelling

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1686-1688
description: Hyperspectral imaging has been carried out on a set of 50 wafers evenly distributed through a
multicrystalline silicon ingot. This technique yields 3-dimensional maps the distribution of radiative recombinations
through inter band gap transitions throughout the silicon ingot, opening up for a completely new way to characterize
mechanisms related to loss of efficiency in the ingot. We have performed correlation between radiative emission
from charge carrier recombination through inter band gap transitions with crystal features such as grains, grain
boundaries and position in ingot. This has been performed for selected wafers throughout at ingot, yielding
information of material quality importance for crystal growth.
Effect of Hydrogen Radical Treatment on Si Surface Passivated by O3-Base ALD AlOx
Creators: name: Ikeno, N.
name: Tachibana, T.
name: Suzuki, S.
name: Ishibashi, K.
name: Yoshida, H.
name: Arafune, K.
name: Satoh, S.
name: Chikyow, T.
name: Ogura, A.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Characterisation and Modelling

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1689-1691
description: The post deposition hydrogen radical (H•) treatment was employed for aluminum oxide (AlOx) to
improve the passivation properties for p-Si. The maximum surface recombination velocity (Smax) at the AlOx/Si
interface was significantly improved mainly thanks to the negative fixed charge increase in the AlOx film. The
improvement was effective especially for the room temperature deposited AlOx film, therefore we believe the H•
treatment has a potential to reduce the production cost.
An Examination of Three Common Assumptions Used to Simulate Recombination in Heavily Doped Silicon
Creators: name: McIntosh, K.R.
name: Altermatt, P.P.
name: Ratcliff, T.J.
name: Fong, K.C.
name: Black, L.E.
name: Baker-Finch, S.C.
name: Abbott, M.D.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Characterisation and Modelling

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1672-1679
description: A well-designed silicon solar cell entails a complicated optimisation of its heavily doped surfaces.
There exist many analytical and numerical models to assist this optimisation, and each involves a foray of
assumptions. In this paper, we examine three of the common assumptions: (i) quasi-neutrality, (ii) the use of
effective recombination parameters as a boundary condition at the surface, and (iii) the use of Boltzman rather than
the more complicated but more precise Fermi–Dirac statistics. We examine their validity and the computational
benefits of their inclusion. We find that (i) the quasi-neutrality assumption is valid over a wide range of conditions,
enabling a fast and relatively simple simulation of emitter recombination, (ii) the effective surface recombination
velocity depends on doping under most conditions and can give the misleading impression that the density of
interface defects depend strongly on surface concentration, and (iii) at carrier concentrations where Boltzmann
statistics are invalid (above 1019 cm–3, and especially above 1020 cm–3), it is more difficult to mitigate the error by
employing an effective model that combines degeneracy with band-gap narrowing, than to include the more general
Fermi–Dirac statistics themselves.
Neural complexity is a common denominator of human consciousness across diverse regimes of cortical dynamics
Creators: name: Frohlich, Joel
name: Chiang, Jeffrey N.
name: Mediano, Pedro A. M.
name: Nespeca, Mark
name: Saravanapandian, Vidya
name: Toker, Daniel
name: Dell’Italia, John
name: Hipp, Joerg F.
name: Jeste, Shafali S.
name: Chu, Catherine J.
name: Bird, Lynne M.
name: Monti, Martin M.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: Article
/692/53/2421
/631/378/1385
/692/617/375/1399
/631/477
article

description: What is the common denominator of consciousness across divergent regimes of cortical dynamics? Does consciousness show itself in decibels or in bits? To address these questions, we introduce a testbed for evaluating electroencephalogram (EEG) biomarkers of consciousness using dissociations between neural oscillations and consciousness caused by rare genetic disorders. Children with Angelman syndrome (AS) exhibit sleep-like neural dynamics during wakefulness. Conversely, children with duplication 15q11.2-13.1 syndrome (Dup15q) exhibit wake-like neural dynamics during non-rapid eye movement (NREM) sleep. To identify highly generalizable biomarkers of consciousness, we trained regularized logistic regression classifiers on EEG data from wakefulness and NREM sleep in children with AS using both entropy measures of neural complexity and spectral (i.e., neural oscillatory) EEG features. For each set of features, we then validated these classifiers using EEG from neurotypical (NT) children and abnormal EEGs from children with Dup15q. Our results show that the classification performance of entropy-based EEG biomarkers of conscious state is not upper-bounded by that of spectral EEG features, which are outperformed by entropy features. Entropy-based biomarkers of consciousness may thus be highly adaptable and should be investigated further in situations where spectral EEG features have shown limited success, such as detecting covert consciousness or anesthesia awareness.
"Pap smears, patients and practitioners" : a retrospective study of cervical cancer screening in a community health centre
Creators: name: Berg, Sarah Jo Kylie.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
A climate network-based index to discriminate different types of El Niño and La Niña
Creators: name: Wiedermann, Marc
name: Radebach, Alexander
name: Donges, Jonathan F.
name: Kurths, Jürgen
name: Donner, Reik V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: El Niño exhibits distinct Eastern Pacific (EP) and Central Pacific (CP) types which are commonly, but not always consistently, distinguished from each other by different signatures in equatorial climate variability. Here, we propose an index based on evolving climate networks to objectively discriminate between both flavors by utilizing a scalar-valued evolving climate network measure that quantifies spatial localization and dispersion in El Niño's associated teleconnections. Our index displays a sharp peak (high localization) during EP events, whereas during CP events (larger dispersion) it remains close to the baseline observed during normal periods. In contrast to previous classification schemes, our approach specifically account for El Niño's global impacts. We confirm recent El Niño classifications for the years 1951 to 2014 and assign types to those cases were former works yielded ambiguous results. Ultimately, we study La Niña episodes and demonstrate that our index provides a similar discrimination into two types.
Optimal performance of a quantum Otto refrigerator
Creators: name: Abah, Obinna
name: Lutz, Eric
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a quantum Otto refrigerator cycle of a time-dependent harmonic oscillator. We investigate the coefficient of performance at maximum figure of merit for adiabatic and nonadiabatic frequency modulations. We obtain analytical expressions for the optimal performance both in the high-temperature (classical) regime and in the low-temperature (quantum) limit. We moreover analyze the breakdown of the cooling cycle for strongly nonadiabatic driving protocols and derive analytical estimates for the minimal driving time allowed for cooling.
Elkem Silicon vs Polysilicon: A Quantitative Impurity Element Analyses
Creators: name: Tayyib, M.
name: Odden, J.O.
name: Hvidsten Dahl, E.
name: Baggethun, P.
name: Sætre, T.O.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Characterisation and Modelling

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1692-1697
description: It is important to fully understand the physical behavior of solar cells made by materials from
alternative process routes. Solar cells from Elkem Solar Grade Silicon and standard polysilicon have been
investigated with light beam induced current. The low efficiency regions have been further analyzed by Scanning
Electron Microscopy under different imaging modes. It was found that cell regions of low performance had
undergone plastic deformations resulting in the creation of crystalline defects appearing as subgrain patterns. Similar
patterns were observed in both ESS™ and standard polysilicon. Energy-dispersive X-ray spectroscopy (EDS) was
used to study impurities near the surface. Substitutional Carbon and interstitial Oxygen have been measured on assawn
wafers using FTIR. Active iron concentration was mapped on a-Si:H passivated wafers. It was concluded that
these impurities present in Elkem Solar Grade Silicon (ESS™) were at levels of concentrations which are comparable
to levels normally expected in standard polysilicon and consequently, within the acceptable ranges for silicon for the
solar industry.
Choeronycteris mexicana Tschudi 1844
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Choeronycteris
Choeronycteris mexicana

description: Choeronycteris mexicana Tschudi, 1844. Fauna Peruana, 1:72. TYPE LOCALITY: Mexico. DISTRIBUTION: Honduras and El Salvador to S California, Nevada, Arizona, and New Mexico (USA); a single record from S Texas; perhaps Venezuela. COMMENTS: It is doubtful that ponsi Pirlot, 1967 (described from NW Venezuela) is referrable to this genus, and the description is inadequate to allocate it; see Jones and Carter (1976:18). See Arroyo-Cabrales et al. (1987, Mammalian Species, 291).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 184, DOI: 10.5281/zenodo.7353060
description: {"references": ["Pirlot, P. 1967. Nouvelle recolte de chiropteres dans l'ouest du Venezuela. Mammalia, 31: 260 - 274.", "Jones, J. K., Jr., and D. C. Carter. 1976. Annotated checklist, with keys to subfamilies and genera. Part I. Pp. 7 - 38, in Biology of bats of the New World family Phyllostomatidae. Part I (R. J. Baker, J. K. Jones, Jr., and D. C. Carter, eds.). Special Publications, The Museum, Texas Tech University Press, 10: 1 - 218.", "Arroyo-Cabrales, J., R. R. Hollander, and J. K. Jones, Jr. 1987. Choeronycteris mexicana. Mammalian Species, 291: 1 - 5."]}
Coplanar Conductance Measurements and Modeling to Characterize Surface Passivation of c-Si Wafers by a-Si:H
Creators: name: Sobkowicz, I.P.
name: Chatterjee, P.
name: Gueunier-Farret, M.E.
name: Salomon, A.
name: Kleider, J.-P.
name: Roca I Cabarrocas, P.
Publisher: name: WIP
Year: 2013
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Characterisation and Modelling

description: 28th European Photovoltaic Solar Energy Conference and Exhibition; 1680-1685
description: Passivation of c-Si wafers has become a crucial technological challenge within the past few years, with
the race for higher efficiencies of heterojunction solar cells and the development of alternative front and rear
passivation layers for homojunction solar cells. Passivation is directly related to the defect density at the interface
between the substrate and the passivating layer. One way to characterize its properties is to measure the effective
lifetime of the photogenerated carriers. This can be done by e.g. the photoconductance decay method. High lifetimes
directly imply a low defect density and in this case, we can expect the dangling bonds on the c-Si surface to be
efficiently saturated by Si and H atoms coming from the passivating layer (a-Si:H in our case). Nevertheless, this
method requires an entirely passivated wafer, whether it is a symmetrical stack or a cell structure, thus doubling the
manufacturing time for any passivation test and preventing from studying the impact of a particular layer. We present
a way of getting to the interface defect density and to an estimation of the passivating properties of a
single-side a-Si:H-passivated (n)c-Si wafer, through coplanar conductance measurements.