cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Atmospheric Pressure Chemical Vapor Deposition of In-Situ Doped Amorphous Silicon Layers for Passivating Contacts
Creators: name: Merkle, A.
name: Seren, S.
name: Knauss, H.
name: Min, B.
name: Steffens, J.
name: Terheiden, B.
name: Brendel, R.
name: Peibst, R.
Publisher: name: WIP
Year: 2018
Subjects: Silicon Cells
Manufacturing & Production of Si Cells

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 785-791
description: Atmospheric Pressure Chemical Vapor Deposition (APCVD) is so far used for the deposition of doped
and undoped oxides. We upgrade an industrial in-line APCVD tool from Schmid Thermal Systems and develop
potential cost-effective APCVD processes for deposition of intrinsic and in-situ-doped amorphous silicon (a-Si)
layers. In this work we report for the first time on in-situ phosphorus-doped n+-type and boron-doped p+-type APCVD
silicon layers. For n+-type and p+-type polysilicon on oxide (POLO) junctions based on these layers we demonstrate
saturation current densities J0 < 6 fA/cm², implied open circuit voltages iVoc of 721 mV and 730 mV respectively, and
simultaneously low junction resistivity c of 18 mΩcm². These properties enable the implementation of these layers as
carrier-selective passivating contacts in solar cells. First industrial proof-of-concept solar cells using boron-doped p+-
type APCVD layers are presented. We show that the p+-type APCVD POLO junction formation is possible by firing
only and present an industrial feasible cell process for its drop-in implementation in current passivated emitter and
rear cell (PERC) process flow.
Gentle and Damage Free Ablation of Dielectric Layers Using a Femtosecond Laser Source for High Efficiency Silicon Wafer Solar Cells
Creators: name: Yacob Ali, J.M.
name: Shanmugam, V.
name: Aberle, A.G.
name: Mueller, T.
Publisher: name: WIP
Year: 2018
Subjects: Silicon Cells
Manufacturing & Production of Si Cells

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 802-804
description: Laser opening of dielectric layers without inducing damage to the underlying substrate is an attractive process simplification for ablation intensive silicon solar cell architectures. In this work, ablation of dielectric layers such as SiNx, AlOx/SiNx stack and SiO2/SiNx stack is carried out using a femtosecond (fs) laser source at two different wavelengths: 343 nm (UV) and 515 mm (green). At 515 nm wavelength, the laser pulses are absorbed in the underlying silicon substrate, causing defects. However, the defects can be minimised by carrying out a gentle ablation process wherein the laser induced damage can be etched off in less than 5 s of chemical etching. At 343 nm wavelength, the laser pulses are mostly absorbed in the dielectric. Hence, it is possible to selectively ablate the dielectric layers by choosing the right pulse fluence and pulse overlap, thus completely avoiding the requirement of post laser chemical etching process. Operating the fs (ultrashort pulse) laser at high pulse fluence induces severe bulk damage that typically requires a prolonged (15 min) chemical etching and therefore should be avoided. Hence, gentle and damage free fs laser ablation process will result in reduced fabrication time, reduced process costs for PV manufacturers applying laser ablation in their processing sequence, and higher wafer/hour throughput.
Testing quantised inertia on the emdrive
Creators: name: McCulloch, M. E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: It has been shown that truncated cone-shaped cavities with microwaves resonating within them move slightly towards their narrow ends (the emdrive). Standard physics has no explanation for this and an error has not yet been found. It is shown here that this effect can be predicted by assuming that the inertial mass of the photons in the cavity is caused by Unruh radiation, whose wavelengths must fit exactly within the cavity, using a theory already applied successfully to astrophysical anomalies such as galaxy rotation where the Unruh waves have to fit within the Hubble scale. In the emdrive this means that more Unruh waves are allowed at the wide end, leading to a greater inertial mass for the photons there, and to conserve momentum the cavity must move towards its narrow end, as observed. The model predicts thrusts of: 3.8, 149, 7.3, 0.23, 0.57, 0.11, 0.64 and 0.02 mN compared with the observed thrusts of: 16, 147, 9, 0.09, 0.05, 0.06, 0.03, and 0.02 mN and predicts that if the axial length is equal to the diameter of the small end of the cavity, the thrust should be reversed.
description: 9 pages, 1 figure
Strong-field Breit-Wheeler pair production in short laser pulses: Relevance of spin effects
Creators: name: Jansen, M. J. A.
name: Kamiński, J. Z.
name: Krajewska, K.
name: Müller, C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Production of electron-positron pairs in the collision of a high-energy photon with a high-intensity few-cycle laser pulse is studied. By utilizing the frameworks of laser-dressed spinor and scalar quantum electrodynamics, a comparison between the production of pairs of Dirac and Klein-Gordon particles is drawn. Positron energy spectra and angular distributions are presented for various laser parameters. We identify conditions under which predictions from Klein-Gordon theory either closely resemble or largely differ from those of the proper Dirac theory. In particular, we address the question to which extent the relevance of spin effects is influenced by the short duration of the laser pulse.
description: 11 pages, 7 figures
Valuable alkaloids content is preserved in Camptotheca acuminata and Morus alba grown in trace elements contaminated soil
Creators: name: Lamontagne, Julien
name: Sas, Eszter
name: Vincent, Gilles
name: Shang, Kankan
name: Pitre, Frédéric E.
name: Labrecque, Michel
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Plant Biology

description: Phytoextraction of trace elements (TE) using woody species is an economically challenging soil remediation approach because of the long time needed. Yet, some trees contain alkaloids that can be exploited along structural components to enhance biomass value. As alkaloids are thought to be involved in plant defence mechanisms, we hypothesized that potentially hostile phytoremediation conditions could increase their level. Camptothecin in Camptotheca acuminata and 1-deoxynojirimycin in Morus alba were measured from trees grown in a field in presence of Cu, Pb and Zn all together, and from M. alba grown in a greenhouse in presence of Cd or other abiotic stressors (NaCl and bending). The trees did not extract TE in the field, but M. alba stems accumulated Cd in the greenhouse experiment, with no consequence on stomatal conductance and leaves pigments concentration. Camptothecin and 1-deoxynojirimycin concentrations were preserved under all experimental conditions, as was biomass yield, and phenolics were slightly increased in M. alba exposed to TE. This study provides evidence that valuable and persistent alkaloids and phenolics can be extracted from trees facing phytoremediation-associated stresses, without a negative impact on their quantity and on biomass yield. Such products could generate a sustainable stream of revenues during phytoremediation. There is scarce data on tree alkaloid content and scarcer data on how it is affected by exposure to trace elements in a phytoremediation context. We provide evidence that the content of two specific alkaloids is not altered in Morus alba and Camptotheca acuminata exposed to moderate to elevated levels of contaminating trace elements. The manuscript introduces the use of M. alba for phytoremediation in the Americas and is the first to propose the use of C. acuminata on trace element contaminated sites to produce camptothecin, a valuable anticancer alkaloid.
Механизмы конвергенции национальных электроэнергетических комплексов в рамках Евразийского экономического союза
Creators: name: ГИБАДУЛЛИН АРТУР АРТУРОВИЧ
Publisher: name: Российский внешнеэкономический вестник
Year: 2018
Subjects: ЭЛЕКТРОЭНЕРГЕТИКА
ELECTRIC POWER INDUSTRY
ЕВРАЗИЙСКИЙ ЭКОНОМИЧЕСКИЙ СОЮЗ
EURASIAN ECONOMIC UNION
КОНВЕРГЕНЦИЯ
CONVERGENCE
НАЦИОНАЛЬНОЕ ГОСУДАРСТВО
NATIONAL STATE
ЭНЕРГЕТИЧЕСКАЯ СИСТЕМА
ENERGY SYSTEM
ОБЩИЙ РЫНОК ЭЛЕКТРИЧЕСКОЙ ЭНЕРГИИ
COMMON ELECTRICITY MARKET
ЭЛЕКТРИЧЕСКАЯ ЭНЕРГИЯ
ELECTRIC ENERGY
САЛЬДО ПЕРЕТОКИ
NET POWER FLOW

description: Статья посвящена вопросам развития Евразийского экономического союза, в рамках которого планируется создание общих рынков топливно-энергетических ресурсов. В проведенном исследовании анализируются основные проблемы, связанные с конвергенцией национальных электроэнергетических комплексов в единую наднациональную структуру ЕАЭС. Автором исследования предложены механизмы наиболее эффективной конвергенции, которые связаны с необходимостью создания наднационального паритетного органа, гармонизацией национального законодательства в области электроэнергетики и создание наднационального органа, отвечающего за управление энергетической системой Евразийского экономического союза.
Printed Dopant Sources for Locally-Doped SiOx/Poly-Si Passivating Contacts
Creators: name: Kiaee, Z.
name: Reichel, C.
name: Feldmann, F.
name: Jahn, M.
name: Huyeng, J.D.
name: Keding, R.
name: Hermle, M.
name: Clement, F.
Publisher: name: WIP
Year: 2018
Subjects: Silicon Cells
Manufacturing & Production of Si Cells

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 792-797
description: This paper presents an industrially relevant solution for the formation of local passivating contacts for back-contact back-junction (BC-BJ) solar cells, based on inkjet- and screen-printing of dopant inks and pastes. The successful realization of passivating contacts utilizing printing technologies is a crucial prerequisite to simplify the fabrication process of BC-BJ cells while approaching theoretical efficiency limit of silicon solar cells. In this work, dopant inks and pastes as well as the printing parameters are tuned in order to establish a high passivation quality within c-Si/SiOx/poly-Si lifetime samples. The impact of the anneal/diffusion conditions on the surface passivation are studied. Excellent passivation quality is achieved for inkjet-printed n-type (phosphorus) poly-Si surfaces with implied open-circuit voltage iVOC of 726 mV and implied fill factor iFF of 86.2%. On p-type, iVOC of 692 mV and iFF of 82.8% and iVOC of 700 mV and iFF of 82.4% where measured by utilizing inkjet and screen-printing, respectively. Similar results were realized by Ion-implanted surfaces, herein used as the reference, underlining the high potential of the investigated printing processes.
Comparing Young Massive Clusters and their Progenitor Clouds in the Milky Way
Creators: name: Walker, D. L.
name: Longmore, S. N.
name: Bastian, N.
name: Kruijssen, J. M. D.
name: Rathborne, J. M.
name: Galván-Madrid, R.
name: Liu, H. B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Young massive clusters (YMCs) have central stellar mass surface densities exceeding $10^{4} M_{\odot} pc^{-2}$. It is currently unknown whether the stars formed at such high (proto)stellar densities. We compile a sample of gas clouds in the Galaxy which have sufficient gas mass within a radius of a few parsecs to form a YMC, and compare their radial gas mass distributions to the stellar mass distribution of Galactic YMCs. We find that the gas in the progenitor clouds is distributed differently than the stars in YMCs. The mass surface density profiles of the gas clouds are generally shallower than the stellar mass surface density profiles of the YMCs, which are characterised by prominent dense core regions with radii ~ 0.1 pc, followed by a power-law tail. On the scale of YMC core radii, we find that there are no known clouds with significantly more mass in their central regions when compared to Galactic YMCs. Additionally, we find that models in which stars form from very dense initial conditions require surface densities that are generally higher than those seen in the known candidate YMC progenitor clouds. Our results show that the quiescent, less evolved clouds contain less mass in their central regions than in the highly star-forming clouds. This suggests an evolutionary trend in which clouds continue to accumulate mass towards their centres after the onset of star formation. We conclude that a conveyor-belt scenario for YMC formation is consistent with the current sample of Galactic YMCs and their progenitor clouds.
description: 11 pages, 4 figures, 4 tables. Accepted for publication in MNRAS
A proposed new diagnostic for Herbig disc geometry: FWHM versus J of CO ro-vibrational lines
Creators: name: Bertelsen, R. P. Hein
name: Kamp, I.
name: van der Plas, G.
name: Ancker, M. E. van den
name: Waters, L. B. F. M.
name: Thi, W. -F.
name: Woitke, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Aims. CO ro-vibrational lines observed from Herbig group II discs are seen to be often broad while the same lines observed from group I discs are often narrow. This difference is not well understood. In this paper we explore the underlying cause for this difference and provide a pathway for a better understanding of the geometry and structure of the inner discs around Herbig Ae/Be stars. Methods. High-spectral-resolution infrared spectra of CO ro-vibrational emission from six Herbig Ae/Be candidate stars were taken with CRIRES (CRyogenic high-resolution InfraRed Echelle Spectrograph) at the VLT (Very Large Telescope). From these spectra, we produce individual and co-added CO ro-vibrational line profiles. We investigate line profile shape differences, and we explore the FWHM (Full Width Half Maximum) variations with J quantum number in the context of disc geometry. Furthermore, we put our new sources into the context of earlier observed sources to study a large sample. For comparison, we also investigate the FWHM variations with J of modelled CO ro-vibrational lines from two typical disc geometries produced with the thermo-chemical disc modelling code ProDiMo. Results. - abbreviated - Comparing dust and gas inner disc geometries (inferred by SED and CO ro-vibrational emission) for the expanded sample of observed Herbig discs, we find no clear correspondence between the SED groups of the sources and their inner CO radius. Conclusions. The FWHM versus J is a potential new gas diagnostic for the inner disc with e.g. a constant FWHM versus J indicating the presence of a large gas hole or gap. Both models and observations indicate the potential of this new diagnostic. - abbreviated -
description: accepted for publication in A&A
MCCE Textured Multicrystalline and Monocrystalline Silicon Solar Cells
Creators: name: Jooss, W.
name: Melnyk, I.
name: Teppe, A.
name: Madugula, S.
name: Jung-König, J.
name: Voigt, O.
name: Fath, P.
Publisher: name: WIP
Year: 2018
Subjects: Silicon Cells
Manufacturing & Production of Si Cells

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 798-801
description: In this work we demonstrate a Metal Catalyst Chemical Etching (MCCE) based inline approach for texturing DWS multicrystalline and monocrystalline wafers. Industrial manufacturing of 450,000 multi PERC solar cells based on the MCCE texturing process is demonstrated with an average efficiency of 20.2% at a customer site. The average Voc and Isc of the manufactured multi PERC solar cells are 653 mV and 9.56 A, respectively. The bath and process are very stable with a bath lifetime of up to 1.4 million wafers. CoO for the MCCE based process is less than 1.25 USDcts/wafer with Ag consumption of less than 0.5 mg/wafer. This is significantly lower than the texturing routes and can be reduced further with recycling of the used Ag. Inverted pyramid structures are obtained for monocrystalline wafers based on the MCCE process with reflectivity in the range of 6% to 10%. Implied Voc of 678 mV is obtained for lifetime samples of mono PERC solar cells, while the IQE and EQE curves are similar to the reference solar cells based on alkaline texturing. Based on the work, an inline tool (i-UniTex) is developed to texture both monocrystalline and multicrystalline wafers.
Growth tolerance, concentration, and uptake of heavy metals as ameliorated by silicon application in vegetables
Creators: name: Ngugi, Moses M.
name: Gitari, Harun I.
name: Muui, Catherine W.
name: Gweyi-Onyango, Joseph P.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Lead (Pb) and cadmium (Cd) are among the heavy metals with phytotoxic and toxic effects on vegetables resulting in a significant decrease in crop yields. On the contrary, silicon (Si) has beneficial effects in enhancing plants’ tolerance to biotic and abiotic stresses such as that imposed by heavy metals. This study evaluated the effects of Pb and Cd on the growth, biomass, and ameliorative mechanism of Si on concentration and uptake by leafy vegetables: spinach, kale, and amaranth. The greenhouse experiment treatments were Pb, Pb + Si, Cd, Cd + Si, Si, and control. These were arranged as a split-plot in a complete randomized design (CRD): main plots constituted vegetable species and treatments as subplots. The field experiment was carried in the Kenyatta University Research Farm, and treatments included Si application and control, arranged in a randomized complete block design (RCBD). Cadmium application reduced root biomass by 53–70% while Pb reduced it by 54–61% when compared with control. Silicon fertilization enhanced biomass tolerance by three-folds’ and significantly (p < 0.001) reduced concentration and uptake of Pb and Cd. Results indicated a strong negative correlation between Cd concentrations and growth parameters (r = 0.8). The study recommends Si application to enhance leafy vegetables' tolerance to Pb and Cd. Heavy metals’ effects on different cereal crops have been studied extensively. However, such studies on vegetables are rare. The current study assessed the role of silicon in alleviating effects of heavy metals on growth and biomass in three leafy vegetables: spinach, kale, and amaranths grown in soils contaminated with lead and cadmium. The study presents a new approach to enhanced safe vegetable production, responsive to increasing urbanization, industrialization, pollution, and human population.
On the emitting region of X-ray fluorescent lines around Compton-thick AGN
Creators: name: Liu, Jiren
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: X-ray fluorescent lines are unique features of the reflection spectrum of the torus when irradiated by the central AGN. Their intrinsic line width can be used to probe the line-emitting region. Previous studies have focused on the Fe Ka line at 6.4 keV, which is the most prominent fluorescent line. These studies, however, are limited by the spectral resolution of currently available instruments, the best of which is $\sim1860$ km s$^{-1}$ afforded by the Chandra High-Energy Grating (HEG). The HEG spectral resolution is improved by a factor of 4 at 1.74 keV, where the Si Ka line is located. We measured the FWHM of the Si Ka line for Circinus, Mrk 3, and NGC 1068, which are $570\pm240$, $730\pm320$, and $320\pm280$ km s$^{-1}$, respectively. They are $3-5$ times smaller than those measured with the Fe Ka line previously. It shows that the intrinsic widths of the Fe Ka line are most likely to be over-estimated. The measured widths of the Si Ka line put the line-emitting region outside the dust sublimation radius in these galaxies. It indicates that for Compton-thick AGN, the X-ray fluorescence material are likely to be the same as the dusty torus emitting in the infrared.
description: 4 pages, 1 fig, to appear on MNRAS
Contemporary Cosmology from Lakatos' viewpoint
Creators: name: Horvath, J. E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: An analysis of contemporary Cosmology is presented, with the aim of identifying the elements present in it according to the scientific program structure created by I. Lakatos. We look at some modern controversies from this point of view and clarify the meaning of issues related to them within this context.
description: 12 pp., 4 figures
A non-unital algebra has UUNP iff its unitization has UUNP
Creators: name: Azhari, M. El
Publisher: name: arXiv
Year: 2015
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46H05

description: Let $A$ be a non-unital Banach algebra, S. J. Bhatt and H. V. Dedania showed that $A$ has the unique uniform norm property (UUNP) if and only if its unitization has UUNP. Here we prove this result for any non-unital algebra.
description: 2 pages
Nuclear discs as clocks for the assembly history of early-type galaxies: the case of NGC4458
Creators: name: Sarzi, Marc
name: Ledo, Hugo R.
name: Coccato, Lodovico
name: Corsini, Enrico-Maria
name: Dotti, Massimo
name: Khochfar, Sadegh
name: Maraston, Claudia
name: Morelli, Lorenzo
name: Pizzella, Alessandro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Approximately 20% of early-type galaxies host small nuclear stellar discs that are tens to a few hundred parsecs in size. Such discs are expected to be easily disrupted during major galactic encounters, hence their age serve to constrain their assembly history. We use VIMOS integral-field spectroscopic observations for the intermediate-mass E0 galaxy NGC4458 and age-date its nuclear disc via high-resolution fitting of various model spectra. We find that the nuclear disc is at least 6 Gyr old. A clue to gain narrow limits to the stellar age is our knowledge of the nuclear disc contribution to the central surface brightness. The presence of an old nuclear disk, or the absence of disruptive encounters since z~0.6, for a small galaxy such as NGC4458 which belongs to the Virgo cluster, may be consistent with a hierarchical picture for galaxy formation where the smallest galaxies assembles earlier and the crowded galactic environments reduce the incidence of galaxy mergers. On the other hand, NGC4458 displays little or no bulk rotation except for a central kpc-scale kinematically-decoupled core. Slow rotation and decoupled core are usually explained in terms of mergers. The presence and age of the nuclear disc constraint these mergers to have happened at high redshift.
description: 10 pages, 8 figures. Accepted for publication on MNRAS
GPD phenomenology and DVCS fitting - Entering the high-precision era
Creators: name: Kumericki, K.
name: Liuti, S.
name: Moutarde, H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review the phenomenological framework for accessing Generalized Parton Distributions (GPDs) using measurements of Deeply Virtual Compton Scattering (DVCS) from a proton target. We describe various GPD models and fitting procedures, emphasizing specific challenges posed both by the internal structure and properties of the GPD functions and by their relation to observables. Bearing in mind forthcoming data of unprecedented accuracy, we give a set of recommendations to better define the pathway for a precise extraction of GPDs from experiment.
description: 32 pages, 10 figures, contribution to the EPJA topical issue on 3D Structure of the Nucleon
High field magneto-transport in two-dimensional electron gas LaAlO3/SrTiO3
Creators: name: Yang, Ming
name: Pierre, Mathieu
name: Toressin, Olivier
name: Goiran, Michel
name: Escoffier, Walter
name: Zeng, Shengwei
name: Huang, Zhen
name: Kun, Han
name: Venkatesan, Thirumalai
name: Ariando
name: Coey, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Transport properties of the complex oxide LaAlO3/SrTiO3 interface are investigated under high magnetic field (55T). By rotating the sample with respect to the magnetic field, the two-dimensional nature of charge transport is clearly established. Small oscillations of the agnetoresistance with altered periodicity are observed when plotted versus inverse magnetic field. We attribute this effect to Rashba spin-orbit coupling which remains consistent with large negative magnetoresistance when the field is parallel to the sample plane. A large inconsistency between the carrier density extracted from Shubnikov-de Haas analysis and from the Hall effect is explained by the contribution to transport of at least two bands with different mobility.
description: 5 pages, 3 figures
The three primary colors of mobile systems
Creators: name: Liu, Hui
name: Chen, Zhiyong
name: Qian, Liang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In this paper, we present the notion of "mobile 3C systems in which the "Communications", "Computing", and "Caching" (i.e., 3C) make up the three primary resources/funcationalties, akin to the three primary colors, for a mobile system. We argue that in future mobile networks, the roles of computing and caching are as intrinsic and essential as communications, and only the collective usage of these three primary resources can support the sustainable growth of mobile systems. By defining the 3C resources in their canonical forms, we reveal the important fact that "caching" affects the mobile system performance by introducing non-causality into the system, whereas "computing" achieves capacity gains by performing logical operations across mobile system entities. Many existing capacity-enhancing techniques such as coded multicast, collaborative transmissions, and proactive content pushing can be cast into the native 3C framework for analytical tractability. We further illustrate the mobile 3C concepts with practical examples, including a system on broadcast-unicast convergence for massive media content delivery. The mobile 3C design paradigm opens up new possibilities as well as key research problems bearing academic and practice significance.
description: submitted to IEEE Communications Magazine -- Feature Topic: Mobile 3C Networks
Absolute Energy Calibration of X-ray TESs with 0.04 eV Uncertainty at 6.4 keV in a Hadron-Beam Environment
Creators: name: Tatsuno, H.
name: Doriese, W. B.
name: Bennett, D. A.
name: Curceanu, C.
name: Fowler, J. W.
name: Gard, J.
name: Gustafsson, F. P.
name: Hashimoto, T.
name: Hayano, R. S.
name: Hays-Wehle, J. P.
name: Hilton, G. C.
name: Iliescu, M.
name: Ishimoto, S.
name: Itahashi, K.
name: Iwasaki, M.
name: Kuwabara, K.
name: Ma, Y.
name: Marton, J.
name: Noda, H.
name: O'Neil, G. C.
name: Okada, S.
name: Outa, H.
name: Reintsema, C. D.
name: Sato, M.
name: Schmidt, D. R.
name: Shi, H.
name: Suzuki, K.
name: Suzuki, T.
name: Uhlig, J.
name: Ullom, J. N.
name: Widmann, E.
name: Yamada, S.
name: Zmeskal, J.
name: Swetz, D. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A performance evaluation of superconducting transition-edge sensors (TESs) in the environment of a pion beam line at a particle accelerator is presented. Averaged across the 209 functioning sensors in the array, the achieved energy resolution is 5.2 eV FWHM at Co $K_α$ (6.9 keV) when the pion beam is off and 7.3 eV at a beam rate of 1.45 MHz. Absolute energy uncertainty of $\pm$0.04 eV is demonstrated for Fe $K_α$ (6.4 keV) with in-situ energy calibration obtained from other nearby known x-ray lines. To achieve this small uncertainty, it is essential to consider the non-Gaussian energy response of the TESs and thermal cross-talk pile-up effects due to charged-particle hits in the silicon substrate of the TES array.
description: Accepted for publication in J. Low Temperature Physics, special issue for the proceedings of the Low Temperature Detectors 16 conference
Growth of Halobacterium salinarum for purple membrane investigations
Creators: name: Quaroni, Luca
Publisher: name: Zenodo
Year: 2023

description: Poster presentation for the 4th International Workshop on Functional Nanostructured Materials (FuNaM-4), September 26th – 29th, 2023, Krakow, Poland
description: Grants NCN 2018/31/B/NZ1/01345
Magnetron Sputtered TCO-Layers for Industrial Production of Heterojunction Silicon Solar Cells
Creators: name: Korn, R.
name: Hübner, S.
name: Huber, M.
name: Wohlfart, P.
Publisher: name: WIP
Year: 2018
Subjects: Silicon Cells
Manufacturing & Production of Si Cells

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 781-784
description: In this contribution we present investigations and developments on sputtering transparent conductive
oxides for crystalline heterojunction solar cells using rotary magnetrons. The aim of this work is to define production
components and processes for highly transparent and well conducting electrode layers that are both, ideally adapted to
the subjacent cell, and cost efficient. In detail, the contribution will deal with the influence of the main growth
parameters of indium tin oxide, like gas phase composition, and the magnet bar configuration on layer and cell quality
with respect to parameters such as VOC, JSC and efficiency of the final solar cells. Additionally, we will point out the
aspects to be considered from the machine builder’s point of view to achieve highest possible cell efficiency with cost
efficient large scale sputtering systems.
The Flavor of the Composite Twin Higgs
Creators: name: Csaki, Csaba
name: Geller, Michael
name: Telem, Ofri
name: Weiler, Andreas
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The assumption of anarchic quark flavor puts serious stress on composite Higgs models: flavor bounds imply a tuning of a few per-mille (at best) in the Higgs potential. Composite twin Higgs (CTH) models significantly reduce this tension by opening up a new region of parameter space, obtained by raising the coupling among the composites close to the strong coupling limit $g_* \sim 4π$, thereby raising the scale of composites to around 10 TeV. This does not lead to large tuning in the Higgs potential since the leading quantum corrections are canceled by the twin partners (rather than the composites). We survey the leading flavor bounds on the CTH, which correspond to tree-level $ΔF=2$ four-Fermi operators from Kaluza-Klein (KK) Z exchange in the kaon system and 1-loop corrections from KK fermions to the electric dipole moment of the neutron. We provide a parametric estimate for these bounds and also perform a numeric scan of the parameter space using the complete calculation for both quantities. The results confirm our expectation that CTH models accommodate anarchic flavor significantly better than regular composite Higgs (CH) models. Our conclusions apply both to the identical and fraternal twin cases.
description: 35 pages, 9 figures
Testing Quasar Unification: Radiative Transfer in Clumpy Winds
Creators: name: Matthews, James H.
name: Knigge, Christian
name: Long, Knox S.
name: Sim, Stuart A.
name: Higginbottom, Nick
name: Mangham, Sam W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Various unification schemes interpret the complex phenomenology of quasars and luminous active galactic nuclei (AGN) in terms of a simple picture involving a central black hole, an accretion disc and an associated outflow. Here, we continue our tests of this paradigm by comparing quasar spectra to synthetic spectra of biconical disc wind models, produced with our state-of-the-art Monte Carlo radiative transfer code. Previously, we have shown that we could produce synthetic spectra resembling those of observed broad absorption line (BAL) quasars, but only if the X-ray luminosity was limited to $10^{43}$ erg s$^{-1}$. Here, we introduce a simple treatment of clumping, and find that a filling factor of $\sim0.01$ moderates the ionization state sufficiently for BAL features to form in the rest-frame UV at more realistic X-ray luminosities. Our fiducial model shows good agreement with AGN X-ray properties and the wind produces strong line emission in, e.g., Ly α and CIV 1550Å at low inclinations. At high inclinations, the spectra possess prominent LoBAL features. Despite these successes, we cannot reproduce all emission lines seen in quasar spectra with the correct equivalent-width ratios, and we find an angular dependence of emission-line equivalent width despite the similarities in the observed emission line properties of BAL and non-BAL quasars. Overall, our work suggests that biconical winds can reproduce much of the qualitative behaviour expected from a unified model, but we cannot yet provide quantitative matches with quasar properties at all viewing angles. Whether disc winds can successfully unify quasars is therefore still an open question.
description: Accepted for publication in MNRAS. 14 pages, 8 figures. Comments welcome. Simulation grid output spectra available online at http://jhmatthews.github.io/quasar-wind-grid/
Zur Frage der Abendmahlszulassung in der SELK im Kontext des Allgemeinen Pfarrkonvents von Hofgeismar 1989
Creators: name: Junker, Thomas
Publisher: name: Lutherische Beiträge
Year: 1970

description: Lutherische Beiträge, Bd. 6 Nr. 1 (2001): Lutherische Beiträge, Band 6, Heft 1
PVD Metallization for High-Efficiency c-Si Solar Cells: Scenario for Implementation in Production
Creators: name: Hain, A.
name: Nagel, H.
name: Dörr, M.
name: Buck, T.
name: Peng, Z.-W.
name: Lorenz, R.
name: Fischer, T.
name: Gledhill, S.
name: Kroyer, T.
name: Huber, M.
name: Wohlfart, P.
Publisher: name: WIP
Year: 2018
Subjects: Silicon Cells
Manufacturing & Production of Si Cells

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 810-813
description: In comparison with the present industry standard for crystalline Si solar cell which is screen
printing of large-area Al and local Ag solder pads on the rear, a physical vapor deposited (PVD) Al rear
contact has several advantages that makes it ideally suited for new generation high-efficiency solar cells.
In this work we describe the boundary conditions for a cost-effective introduction of PVD Al in
production. To begin with the cell design a contact resistance below 10 mΩ cm² can be assured by a Si
doping concentration higher than 1017 cm-3 for p-type Si and higher than 2x1019 cm-3 for n-type Si. In case
of 5 busbars an Al thickness of only 1 μm is needed to reduce the lateral resistance loss to less than 0.04 %
absolute for cells featuring an efficiency of 23.4 %. By sputtering a thin NiV adhesion layer on the Al and
preferably another thin metal layer for good solder wetting, normalised interconnector peel forces
exceeding 2 N/mm were obtained. This way standard interconnection technology based on soldering can
be utilized for module production. The cost of ownership calculation reveals a cost reduction of 2.6 % on
module level if the module efficiency can be increased from 21 % for modules equipped with screenprinted
cells to 21.7 % for high-efficiency solar cell modules.
Martian north polar cap summer water cycle
Creators: name: Brown, Adrian J.
name: Calvin, Wendy M.
name: Becerra, Patricio
name: Byrne, Shane
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: A key outstanding question in Martian science is 'are the polar caps gaining or losing mass and what are the implications for past, current and future climate?' To address this question, we use observations from the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) of the north polar cap during late summer for multiple Martian years, to monitor the summertime water cycle in order to place quantitative limits on the amount of water ice deposited and sublimed in late summer. We establish here for the first time the summer cycle of water ice absorption band signatures on the north polar cap. We show that in a key region in the interior of the north polar cap, the absorption band depths grow until Ls=120, when they begin to shrink, until they are obscured at the end of summer by the north polar hood. This behavior is transferable over the entire north polar cap, where in late summer regions 'flip' from being net sublimating into net condensation mode. This transition or 'mode flip' happens earlier for regions closer to the pole, and later for regions close to the periphery of the cap. The observations and calculations presented herein estimate that on average a water ice layer ~70 microns thick is deposited during the Ls=135-164 period. This is far larger than the results of deposition on the south pole during summer, where an average layer 0.6-6 microns deep has been estimated by Brown et al. (2014).
description: This article is closely related and draws from arXiv:1501.02040
Deep Learning Approach to Inline Quality Rating and Mapping of Multi-Crystalline Si-Wafers
Creators: name: Demant, M.
name: Virtue, P.
name: Kovvali, A.S.
name: Yu, S.X.
name: Rein, S.
Publisher: name: WIP
Year: 2018
Subjects: Silicon Cells
Manufacturing & Production of Si Cells

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 814-818
description: This work shows the first successful application of convolutional neural networks (CNN) for material characterization
and process control in solar cell production. We present a fully data-driven machine learning approach for inline quality
rating and quality mapping of as-cut multi-crystalline Silicon (mc-Si) wafers. We use Photoluminescence (PL) images to
image crystallization related defects in the wafers. We show that we can learn how to quantify these defect patterns based
on empirical data and derive a meaningful wafer representation directly from the high-resolution input images by means
of deep CNNs. This end-to-end regression model predicts solar cell efficiencies with mean errors of 0.12% for materials
of bricks not presented in the training set, which is 25%rel better than our classical methods based on feature engineering.
Moreover, we visualize the expected quality distribution for each sample within a spatially resolved activation map. The
mapping procedure gives an insight into the “black box” neural network and shows that the quality distribution is in
accordance to the expectations of domain experts and similar to spatially resolved quality data like the image of the dark
saturation current density (j0). More details on learning and mapping will be reported within two studies elsewhere.
GenPerm: A Unified Method for Detecting Non-overlapping and Overlapping Communities
Creators: name: Chakraborty, Tanmoy
name: Kumar, Suhansanu
name: Ganguly, Niloy
name: Mukherjee, Animesh
name: Bhowmick, Sanjukta
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

description: Detection of non-overlapping and overlapping communities are essentially the same problem. However, current algorithms focus either on finding overlapping or non-overlapping communities. We present a generalized framework that can identify both non-overlapping and overlapping communities, without any prior input about the network or its community distribution. To do so, we introduce a vertex-based metric, GenPerm, that quantifies by how much a vertex belongs to each of its constituent communities. Our community detection algorithm is based on maximizing the GenPerm over all the vertices in the network. We demonstrate, through experiments over synthetic and real-world networks, that GenPerm is more effective than other metrics in evaluating community structure. Further, we show that due to its vertex-centric property, GenPerm can be used to unfold several inferences beyond community detection, such as core-periphery analysis and message spreading. Our algorithm for maximizing GenPerm outperforms six state-of-the-art algorithms in accurately predicting the ground-truth labels. Finally, we discuss the problem of resolution limit in overlapping communities and demonstrate that maximizing GenPerm can mitigate this problem.
description: This paper (final version) is accepted in IEEE Transactions on Knowledge and Data Engineering (TKDE). 13 Figures, 6 tables
Anpassung - geistlicher Sprengstoff, aufgezeigt an der Königsgeschichte Israels
Creators: name: Horwitz, Christoph
Publisher: name: Lutherische Beiträge
Year: 1970

description: Lutherische Beiträge, Bd. 6 Nr. 1 (2001): Lutherische Beiträge, Band 6, Heft 1
Orbital Architectures of Planet-Hosting Binaries: I. Forming Five Small Planets in the Truncated Disk of Kepler-444A
Creators: name: Dupuy, Trent J.
name: Kratter, Kaitlin M.
name: Kraus, Adam L.
name: Isaacson, Howard
name: Mann, Andrew W.
name: Ireland, Michael J.
name: Howard, Andrew W.
name: Huber, Daniel
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the first results from our Keck program investigating the orbital architectures of planet-hosting multiple star systems. Kepler-444 is a metal-poor triple star system that hosts five sub-Earth-sized planets orbiting the primary star (Kepler-444A), as well as a spatially unresolved pair of M dwarfs (Kepler-444BC) at a projected distance of 1.8" (66 AU). We combine our Keck/NIRC2 adaptive optics astrometry with multi-epoch Keck/HIRES RVs of all three stars to determine a precise orbit for the BC pair around A, given their empirically constrained masses. We measure minimal astrometric motion ($1.0\pm0.6$ mas yr$^{-1}$, or $0.17\pm0.10$ km s$^{-1}$), but our RVs reveal significant orbital velocity ($1.7\pm0.2$ km s$^{-1}$) and acceleration ($7.8\pm0.5$ m s$^{-1}$ yr$^{-1}$). We determine a highly eccentric stellar orbit ($e=0.864\pm0.023$) that brings the tight M dwarf pair within $5.0^{+0.9}_{-1.0}$ AU of the planetary system. We validate that the system is dynamically stable in its present configuration via n-body simulations. We find that the A$-$BC orbit and planetary orbits are likely aligned (98%) given that they both have edge-on orbits and misalignment induces precession of the planets out of transit. We conclude that the stars were likely on their current orbits during the epoch of planet formation, truncating the protoplanetary disk at $\approx$2 AU. This truncated disk would have been severely depleted of solid material from which to form the total $\approx$1.5 $M_{\rm Earth}$ of planets. We thereby strongly constrain the efficiency of the conversion of dust into planets and suggest that the Kepler-444 system is consistent with models that explain the formation of more typical close-in Kepler planets in normal, not truncated, disks.
description: accepted to ApJ
An Examination into the Optical Coupling between Light Funnel Arrays and Underlying Substrates
Creators: name: Prajapati, A.
name: Nissan, Y.
name: Gabay, T.
name: Shalev, G.
Publisher: name: WIP
Year: 2018
Subjects: Silicon Cells
Characterisation & Simulation Methods for Si Cells

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 766-768
description: Light trapping and the broadband absorption of the solar radiation are important to various energy harvesting
applications. Broadband absorption enhancement was demonstrated with arrays of free-floating silicon light funnels (LF).
In the following we use finite-difference time-domain electromagnetic calculations to examine the optical response of the
substrate-LF array complexes. We show that the presence the LF arrays on top of an underlying substrates can induce, on
top of the strong excitations of the arrays, strong excitations of optical modes in the substrates.
Screen Printed Thick Film Metallization of Silicon Solar Cells - Recent Developments and Future Perspectives
Creators: name: Lorenz, A.
name: Linse, M.
name: Frintrup, H.
name: Jeitler, M.
name: Mette, A.
name: Lehner, M.
name: Greutmann, R.
name: Brocker, H.
name: König, M.
name: Erath, D.
name: Clement, F.
Publisher: name: WIP
Year: 2018
Subjects: Silicon Cells
Manufacturing & Production of Si Cells

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 819-824
description: Within this work, we present actual results in the field of screen printing front side metallization for
Silicon solar cells using standard and knotless screen technology. We show that knotless screens have the potential to
improve the printed finger geometry and reduce silver consumption. A fine line front side metallization for PERC
(passivated emitter and rear) with a mean finger width of wf = 27 μm is realized using a fine line screen printing
process at Fraunhofer ISE. The PERC solar cells obtain a mean conversion efficiency of  = 21.6 %. Furthermore, we
present actual results regarding rotary screen printed front side metallization – a highly promising approach to
increase throughput significantly. Using this technology, PERC solar cells are metallized at a printing speed of
v = 333 mm/s. A mean finger width wf = 47 μm and a mean finger height of hf = 13 μm is obtained.
Особенности регулирования прав интеллектуальной собственности в кнр
Creators: name: ПЫЖИКОВ НИКИТА СЕРГЕЕВИЧ
Publisher: name: Российский внешнеэкономический вестник
Year: 2018
Subjects: ИНТЕЛЛЕКТУАЛЬНАЯ СОБСТВЕННОСТЬ
INTELLECTUAL PROPERTY
ПАТЕНТЫ
PATENTS
ИЗОБРЕТЕНИЯ
INVENTIONS
ПОЛЕЗНЫЕ МОДЕЛИ
UTILITY MODELS
ПРОМЫШЛЕННЫЕ ОБРАЗЦЫ
INDUSTRIAL DESIGNS
ТОВАРНЫЕ ЗНАКИ
TRADEMARKS
АВТОРСКИЕ ПРАВА
COPYRIGHTS
ГЕОГРАФИЧЕСКИЕ УКАЗАНИЯ
GEOGRAPHICAL INDICATIONS
КОНТРАФАКТНАЯ ПРОДУКЦИЯ
COUNTERFEIT PRODUCTS
КИТАЙСКАЯ НАРОДНАЯ РЕСПУБЛИКА
PEOPLE'S REPUBLIC OF CHINA

description: В статье представлена подробная характеристика современной системы защиты правинтеллектуальной собственности Китайской Народной Республики, включая регулирование отдельных объектов ИС. Особое внимание уделено слабым местам действующей системы, вызывающим опасения со стороны международных компаний, планирующих илиуже вошедших на рынок КНР, связанным с риском нарушения их прав интеллектуальной собственности. Сделан вывод о том, что КНР ведет активную работу по формированию благоприятных условий для привлечения международных компаний, обладающих конкурентным преимуществом в сфере производства высокотехнологичной продукции. Тем неменее, несмотря на предпринимаемые шаги, до сих пор остаются неразрешенными ряд проблемных вопросов, препятствующих полноценной трансформации КНР в страну, способную обеспечить высокий уровень защиты прав ИС.