cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Oreoica cristata subsp. westralensis Mathews
Creators: name: Pachycephalidae
name: Aegithalidae
name: Remizidae
name: Paridae
name: Sittidae
name: Neosittidae
name: Certhiidae
name: Rhabdornithidae
name: Climacteridae
name: Dicaeidae
name: Pardalotidae
name: Nectariniidae, And
name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Oreoicidae
Oreoica

description: Oreoica cristata westralensis Mathews Oreoica cristata westralensis Mathews, 1912a: 377 (South-West Australia). Now Oreoica gutturalis gutturalis (Vigors and Horsfield, 1827). See Mayr, 1953: 252–253, Schodde and Mason, 1999: 464–465, and Boles, 2007: 410. HOLOTYPE: AMNH 657303, adult male, collected at Broomehill, 33.51S, 117.38E (Johnstone and Storr, 2004: 504), Western Australia, Australia, on 1 July 1908, by Thomas Carter. From the Mathews Collection (no. 2629) via the Rothschild Collection. COMMENTS: In the original description, Mathews cited his catalog number of the holotype. In addition to the field label and Mathews and Rothschild type labels, the holotype also bears a ‘‘Figured’’ label, indicating that it was illustrated in Mathews (1923b, pl. 492, opp. p. 18, text p. 19), where it is confirmed as the type of westralensis. Paratypes are: AMNH 657305 (Mathews no. 2628), male, 27 October 1907; AMNH 657307 (2631), female, 22 October 1905; AMNH 657308 (2630), female, 18 September 1905, all collected by Carter at Broomehill. Two additional specimens are possible paratypes but I did not find them in Mathews’ catalog and do not know when he acquired them: AMNH 657304, male, 22 September 1910, and AMNH 657306, male juv., 27 August 1910, both also collected at Broomehill by Carter.
description: Published as part of Pachycephalidae, Aegithalidae, Remizidae, Paridae, Sittidae, Neosittidae, Certhiidae, Rhabdornithidae, Climacteridae, Dicaeidae, Pardalotidae, Nectariniidae, And & Lecroy, Mary, 2010, Type Specimens Of Birds In The American Museum Of Natural History Part 8. Passeriformes:, pp. 1-178 in Bulletin of the American Museum of Natural History 2010 (333) on page 7
description: {"references": ["Mathews, G. M. 1912 a. A reference-list to the birds of Australia. Novitates Zoologicae 18: 171 - 446.", "Mayr, E. 1953. Geographic and individual variation in the shrike-tit (Falcunculus frontatus). Emu 53: 249 - 252.", "Schodde, R., and I. J. Mason. 1999. The directory of Australian birds. Passerines. Collingwood, Victoria: CSIRO Publishing, 851 pp.", "Boles, W. E. 2007. Family Pachycephalidae. In: J. del Hoyo, A. Elliott, and D. A. Christie (editors), Handbook of birds of the world, volume 12: 374 - 437. Barcelona: Lynx Edicions, 816 pp., 56 pls, 436 photographs.", "Johnstone, R. E., and G. M. Storr. 2004. Handbook of Western Australian birds, Volume 2. Passerines. Perth: Western Australian Museum, 529 pp.", "Mathews, G. M. 1923 b. The birds of Australia. Vol. 11 (1 - 3): 1 - 209, pls. 491 - 508. London: H. F. and G. Witherby."]}
Characterization of the Grid Design by Fitting of the Distributed Serial Grid Resistance to CELLO Resistance Maps and Global IV Curves
Creators: name: Carstensen, J.
name: Abdollahinia, A.
name: Schütt, A.
name: Föll, H.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 516-519
description: CELLO results from a large number of solar cells and results from other tools sensitive to local serial
resistance show unambiguously that the grid is not an equipotential layer. As a consequence, a distributed serial resistance
has to be taken into account. As shown in this paper a formerly proposed model is necessary and sufficient
to obtain consistent results from iv-curve analysis and CELLO resistance maps. Necessary corrections between ivcurve
measurements and CELLO are taken into account and explained.
Fe dopant in ZnO: 2+ vs 3+ valency and ion-carrier s,p-d exchange interaction
Creators: name: Papierska, J.
name: Ciechan, A.
name: Bogusławski, P.
name: Boshta, M.
name: Gomaa, M. M.
name: Chikoidze, E.
name: Dumont, Y.
name: Drabińska, A.
name: Przybylińska, H.
name: Gardias, A.
name: Szczytko, J.
name: Twardowski, A.
name: Tokarczyk, M.
name: Kowalski, G.
name: Witkowski, B.
name: Sawicki, K.
name: Pacuski, W.
name: Nawrocki, M.
name: Suffczyński, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Dopants of transition metal ions in II-VI semiconductors exhibit native 2+ valency. Despite this, 3+ or mixed 3+/2+ valency of iron ions in ZnO was reported previously. Several contradictory mechanisms have been put forward for explanation of this fact so far. Here, we analyze Fe valency in ZnO by complementary theoretical and experimental studies. Our calculations within the generalized gradient approximation (GGA+U) indicate that the Fe ion is a relatively shallow donor. Its stable charge state is Fe2+ in ideal ZnO, however, the high energy of the (+/0) transition level enhances the compensation of Fe2+ to Fe3+ by non-intentional acceptors in real samples. Using several experimental methods like electron paramagnetic resonance, magnetometry, conductivity, excitonic magnetic circular dichroism and magneto-photoluminescence we confirm the 3+ valency of the iron ions in polycrystalline (Zn,Fe)O films with the Fe content attaining 0.2%.We find a predicted increase of n-type conductivity upon the Fe doping with the Fe donor ionization energy of 0.25 +/- 0.02 eV consistent with the results of theoretical considerations. Moreover, our magnetooptical measurements confirm the calculated non-vanishing s,p-d exchange interaction between band carriers and localized magnetic moments of the Fe3+ ions in the ZnO, being so far an unsettled issue.
description: 17 pages, 10 figures
DOSBE “Development of Electricity Service Operators for Poverty Alleviation in Ecuador and Peru”
Creators: name: Arranz, P.
name: Vallvé, X.
name: Gámez, J.
name: Ortiz, B.
name: Egido Aguilera, M.A.
name: Camino-Villacorta, M.
name: Jacquin, P.
name: González, S.
name: López, P.
name: Marcelo, O.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Systems
Off-grid Applications and Rural Electrification

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 4350-4353
description: Access to electricity is fundamental in any model of community development; energy is basic to enable
effective steps towards rural development. However, traditional rural electrification via grid extension turns out to be
financially prohibitive in remote areas of developing countries. The DOSBE project has addressed the cases of Ecuador
and Peru, where the reliability of off-grid renewable energy (RE) systems had been demonstrated in previous
experiences, but still these schemes are not integrated in legal frameworks for electricity services.
The project has been directed to support the development of decentralized electricity service operators (also call
“management models”) for poverty alleviation in rural areas. The specific activities carried out in the project are:
1. Analysis of legislation, environmental and financial constraints, and the most viable technologies for the
development of operators for the provision of decentralised electricity services.
2. Elaboration of a guidebook with practical tools (institutional, financial, for management, and technical) for the
creation and strengthening of electricity operators.
3. Support of on-going projects in both countries by implementing the tools.
4. Realisation of capacity building actions (National Seminars and Regional Workshops) in Ecuador and Peru for all
the key stakeholders.
The results obtained in each of the activities above are presented in this paper.
Two-Sided Impact of Water on the Relaxation of Inner-Valence Vacancies of Biologically Relevant Molecules
Creators: name: Skitnevskaya, Anna D.
name: Gokhberg, Kirill
name: Trofimov, Alexander B.
name: Grigoricheva, Emma K.
name: Kuleff, Alexander I.
name: Cederbaum, Lorenz S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: After ionization of an inner-valence electron of molecules, the resulting cation-radicals store substantial internal energy which, if sufficient, can trigger ejection of an additional electron in an Auger decay usually followed by molecule fragmentation. In the environment, intermolecular Coulombic decay (ICD) and electron-transfer mediated decay (ETMD) are also operative, resulting in one or two electrons being ejected from a neighbor, thus preventing the fragmentation of the initially ionized molecule. These relaxation processes are investigated theoretically for prototypical heterocycle-water complexes of imidazole, pyrrole, and pyridine. It is found that the hydrogen-bonding site of the water molecule critically influences the nature and energetics of the electronic states involved, opening or closing certain relaxation processes of the inner-valence ionized system. Our results indicate that the relaxation mechanisms of biologically relevant systems with inner-valence vacancies on their carbon atoms can strongly depend on the presence of the electron-density donating or accepting neighbor, either water or another biomolecule.
Gravitational waves from primordial black holes collisions in binary systems
Creators: name: Eroshenko, Yu. N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: It was shown by (Nakamura et al. 1997), (Ioka et al. 1998), and (Sasaki et al. 2016) that primordial black holes (PBHs) binaries can form effectively at the cosmological stage of radiation dominance, and the merge of the PBHs in pairs can explain the gravitational wave burst GW150914. In this paper, the model is re-examined by considering the effect of inflationary dark matter density perturbations which produce additional tidal forces. As a result, the merge rate of PBHs binaries and the corresponding rate of the gravitational bursts are suppressed by the factor $\sim1.5-2$ in comparison with previous calculations. This rate matches the LIGO data if the PBHs constitute the $f\sim5\times10^{-4}-5\times10^{-3}$ fraction of dark matter.
description: 6 pages, 2 figures, Presented at the Conference on Physical Interpretation of Relativity Theory (PIRT-2017), Moscow, Russia
Arabic Literature Translation into the Co-official Languages of Spain 2010–2020
Creators: name: Mahyub Rayaa, Bachir
name: Almenara, Angelina Gutiérrez
Publisher: name: figshare
Year: 2022
Subjects: subject: 200323 Translation and Interpretation Studies
subject: FOS: Languages and literature
subject: 200318 Middle Eastern Languages
subject: 200523 Middle Eastern Literature
subject: 210310 Middle Eastern and African History
subject: FOS: History and archaeology

description: This study traces the translation flows of Arabic literature into the co-official languages of Spain.
Development of ZnO:Al to Replace Indium Tin Oxyde for Heterojunction Solar Cells: Effect on Surface Passivation Quality and Short Circuit Current
Creators: name: Ribeyron, P.-J.
name: Baclet, N.
name: Boucher, H.
name: Desrues, T.
name: Vandeneynde, A.
name: Souche, F.
name: Ozanne, A.-S.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1449-1452
description: The aim of the present work is to develop an alternative to ITO for silicon heterojunction solar cells. This study is motivated by cost and availability issues linked with indium material. It is proposed to replace ITO by ZnO doped with aluminum. A process for ZnO:Al films deposition is presented based on conventional RF magnetron sputtering. Experimental parameters are adapted in order to meet the specifications in terms of electrical resistivity and transmission. The microstructure of the films is also characterized by XRD. Optical simulation is carried out at the cell level in order to evaluate the optimal thickness of the Al-doped ZnO film regarding transmission. Finally, a comparison is made between a standard ITO and the newly developed ZnO:A film regarding the properties of the solar cell.
Novel Inkjet Inks For Complete Off Contact Fabrication of Silicon Solar Cell
Creators: name: Khaselev, O.
name: Desai, N.
name: Devarajan, S.
name: Boureghda, M.
name: Lifton, A.
name: Chatterjee, S.
name: Marczi, M.
name: Singh, B.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1346-1348
description: This paper describes the practical approach for complete off-contact inkjet fabrication of PV cells using novel functional inks. The development is focused in the following areas: silver inks for contact metallization, doping inks for creating p- and n- junctions, diffusion barrier inks and ink for ARC etching. Utilizing new inks we fabricated selective emitters and p+ junctions and demonstrated low contact resistance of silver seed layer to both n- and p- Si.
The dielectric ink can be used to form layer of Ti-oxide which is used as a diffusion or dielectric barrier. We demonstrated feasibility of SiNx etching by ink jet printing of etching material which removes SiNx without damaging Si substrate and can be cleaned by acidic wash.
ARABIC LITERATURE TRANSLATION INTO THE CO-OFFICIAL LANGUAGES OF SPAIN 2010–2020
Creators: name: Mahyub Rayaa, Bachir
name: Almenara, Angelina Gutiérrez
Publisher: name: figshare
Year: 2022
Subjects: subject: 200323 Translation and Interpretation Studies
subject: FOS: Languages and literature
subject: 200318 Middle Eastern Languages
subject: 200523 Middle Eastern Literature
subject: 210310 Middle Eastern and African History
subject: FOS: History and archaeology

description: This study traces the translation flows of Arabic literature into the co-official languages of Spain.
IIT Hyderabad's Research Triumph: Unraveling the Impact and Output of Scholarly Publications (2008-2022)
Creators: name: C, MALLIKARJUNA
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 461006
subject: Library studies
classificationCode: 461099
subject: Library and information studies not elsewhere classified

description: This scholarly article provides an in-depth assessment of the research scholarly excellence of the IIT Hyderabad by analyzing its research output from 2008 to 2022. The study employs scholarly metrics to evaluate research excellence. The analysis reveals that IIT Hyderabad has demonstrated robust research output, with over 7848 papers published in high-impact journals and more than 111151 citations received. The research conducted at IIT Hyderabad has made significant contributions to engineering and sciences, influencing society. These findings firmly establish IIT Hyderabad as a leading institute with a proven track record of research excellence. The article concludes that IIT Hyderabad is poised to continue contributing to knowledge and society, making it a valuable resource for policymakers, researchers, and stakeholders in higher education.
Ultrafast behavior of induced and intrinsic magnetic moments in CoFeB/Pt bilayers probed by element-specific measurements in the extreme ultraviolet spectral range
Creators: name: Schmising, Clemens von Korff
name: Jana, Somnath
name: Yao, Kelvin
name: Hennecke, Martin
name: Scheid, Philippe
name: Sharma, Sangeeta
name: Viret, Michel
name: Chauleau, Jean-Yves
name: Schick, Daniel
name: Eisebitt, Stefan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The ultrafast and element-specific response of magnetic systems containing ferromagnetic 3d transition metals and 4d/5d heavy metals is of interest both from a fundamental as well as an applied research perspective. However, to date no consensus about the main microscopic processes describing the interplay between intrinsic 3d and induced 4d/5d magnetic moments upon femtosecond laser excitation exist. In this work, we study the ultrafast response of CoFeB/Pt bilayers by probing element-specific, core-to-valence band transitions in the extreme ultraviolet spectral range using high harmonic radiation. We show that the combination of magnetic scattering simulations and analysis of the energy- and time-dependent magnetic asymmetries allows to accurately disentangle the element-specific response in spite of overlapping Co and Fe M$_{2,3}$ as well as Pt O$_{2,3}$ and N$_7$ resonances. We find a considerably smaller demagnetization time constant as well as much larger demagnetization amplitudes of the induced moment of Pt compared to the intrinsic moment of CoFeB. Our results are in agreement with enhanced spin-flip probabilities due to the high spin-orbit coupling localized at the heavy metal Pt, as well as with the recently formulated hypothesis that a laser generated, incoherent magnon population within the ferromagnetic film leads to an overproportional reduction of the induced magnetic moment of Pt.
Development of a Solar Plane Prototype
Creators: name: Cendagorta, M.
name: Friend, E.
name: Rodríguez, J.
name: Fernández, J.
name: Martín, J.E.
name: González Hernández, M.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Systems
Off-grid Applications and Rural Electrification

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 4360-4362
description: The final objective of this project is the construction of a completely autonomous, non contaminating
airplane, powered exclusively by solar photovoltaic energy. Among the main challenges in this project, it is worth
highlighting the aerodynamic design, the energy generation system exclusively based on photovoltaic solar cells and
its energy accumulation system, as well as the navigation and tracking systems which include the transference of
information. to the earth bases. There are several applications identified as interesting for this kind of planes, such as
being used as permanent observatory of the atmosphere and earth surface at low altitudes, or even as emergency
communication node in case of catastrophe.
Low temperature-semiconductor band gap thermal shifts: T^4 shifts from ordinary acoustic and T^2 from piezoacoustic coupling
Creators: name: Allen, Philip B.
name: Nery, Jean Paul
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: At low temperature T, the experimental gap of silicon decreases as E_g(T)=E_g(0)-AT^4. The main reason is electron-phonon renormalization. The physics behind the T^4-power law is more complex than has been realized. Renormalization by intraband scattering requires a careful non-adiabatic treatment in order to correctly include acoustic phonons and avoid divergences from piezoacoustic phonon interactions. The result is an unexpected low T term E_g(0)+A' T^p with positive coefficient A', and power p=4 for non-piezoelectric materials, and power p=2 for piezoelectric materials. The acoustic phonons in piezoelectric semiconductors generate a piezoelectric field, modifying the electron-phonon coupling. However, at higher T, when thermal acoustic phonons of energy hbar v_s q acquire energies comparable to the electronic intermediate state (higher than the band-edge state by hbar^2 q^2 /2m*), the low q and higher q intraband contributions to T^p rapidly cancel, giving little thermal effect. But there is an additional T-dependence from interband effects of acoustic phonons. This turns out to have power law T^4 for both non-piezoelectric and piezoelectric semiconductors. This term can have either sign, but usually reduces the size of gaps as T increases. It arises after cancellation of the T^2 terms that appear separately in Debye-Waller and Fan parts of the acoustic phonon interband renormalization. The cancellation occurs because of the acoustic sum rule.
description: 10 pages, 3 figures. The paper has been improved by refereeing, and typos have been corrected
Pachycephala gamblei Rothschild 1897
Creators: name: Pachycephalidae
name: Aegithalidae
name: Remizidae
name: Paridae
name: Sittidae
name: Neosittidae
name: Certhiidae
name: Rhabdornithidae
name: Climacteridae
name: Dicaeidae
name: Pardalotidae
name: Nectariniidae, And
name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Pachycephalidae
Pachycephala

description: Pachycephala gamblei Rothschild Pachycephala gamblei Rothschild, 1897: 22 (Mount Cameron, Owen Stanley Range, 5000 feet). Now Aleadryas rufinucha gamblei (Rothschild, 1897). See Dickinson, 2003: 474, and Boles, 2007: 410–411. HOLOTYPE: AMNH 659465, female on label (but Hartert added ‘‘s?! E.H.!’’), collected on Mt. Cameron, 5000 ft, 08.50S, 147.15E (USBGN, 1943), Owen Stanley Range, Central Province, Papua New Guinea, date illegible, by A.S. Anthony. From the Rothschild Collection. COMMENTS: In the originial description, Rothschild did not say how many specimens he had and did not designate a type. However, of the two Mt. Cameron specimens that came to AMNH, the above specimen is the one described, as the other specimen still has remaining immature feathers, of which no mention is made. It bears the Rothschild type label and the reverse of Anthony’s label is annotated ‘‘ Pachycephala gamblei Rothsch. type’’ in Rothschild’s hand. It is also the one listed as the type by Rothschild and Hartert (1903a: 104). The paratype is AMNH 659466, female, Mt. Cameron, 11 August 1896, A.S. Anthony collector; it has the rufous feathers of immaturity on the face and along the sides of the throat and an overall brownish wash to the plumage.
description: Published as part of Pachycephalidae, Aegithalidae, Remizidae, Paridae, Sittidae, Neosittidae, Certhiidae, Rhabdornithidae, Climacteridae, Dicaeidae, Pardalotidae, Nectariniidae, And & Lecroy, Mary, 2010, Type Specimens Of Birds In The American Museum Of Natural History Part 8. Passeriformes:, pp. 1-178 in Bulletin of the American Museum of Natural History 2010 (333) on page 11
description: {"references": ["Rothschild, W. 1897. [The Hon. Walter Rothschild sent descriptions of the following species of birds from New Guinea: -]. Bulletin of the British Ornithologists' Club 7: 21 - 22.", "Dickinson, E. C. (editor). 2003. The Howard & Moore complete checklist of the birds of the world. 3 rd ed. London: Christopher Helm, 1039 pp.", "Boles, W. E. 2007. Family Pachycephalidae. In: J. del Hoyo, A. Elliott, and D. A. Christie (editors), Handbook of birds of the world, volume 12: 374 - 437. Barcelona: Lynx Edicions, 816 pp., 56 pls, 436 photographs.", "Rothschild, W., and E. Hartert. 1903 a. Notes on Papuan birds. IX. Laniidae. Novitates Zoologicae 10: 92 - 109."]}
Fundamental Losses in Solar Cells
Creators: name: Hirst, L.C.
name: Ekins-Daukes, N.J.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 457-461
description: Fundamental loss processes occurring in solar cells have been quantified. A comprehensive picture of fundamental
solar cell function is presented, with the physical origins of losses discussed in terms of photon absorption and
emission. The effects on device characteristics are calculated with losses identified as reducing current or voltage.
Fundamental losses are represented graphically, accounting for all energy received from the sun. Quantifying losses
in solar cells and presenting them graphically allows the origins of fundamental limiting efficiency to be visualised.
Potential areas for improvement to cell design can be identified, providing a guide to innovation and development
Anatomy of a University Sponsored Successful Hybrid Solar and Wind Based Renewable Energy Project in Rural Ethiopia
Creators: name: Lakeou, S.
name: Latigo, B.O.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Systems
Off-grid Applications and Rural Electrification

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 4327-4335
description: The paper chronicles the process which led to the success of a renewable energy project based on a hybrid solar and wind
power system. The project is based in Farsi Senkele rural community in Ambo, Ethiopia. The initial fact-finding mission
conducted by the university, including its dealings with local governmental and nongovernmental organizations as well as
local universities and colleges are highlighted with emphasis on the encountered challenges. Details of the proposed technical
design of the renewable power source for pumping water from a shallow well is presented. The logistical considerations,
including the signing of required memorandum of understanding (MOU) with a local organization, the acquisition of private
funding and material support and equipment transportation and other aspects are described. The benefits brought to the
students who participated in the realization of the project are also emphasized. The project is promoted as an ideal model for
the prospect of sustained university sponsored projects in developing countries.
Geometric Multigrid for Darcy and Brinkman models of flows in highly heterogeneous porous media: A numerical study
Creators: name: Kanschat, Guido
name: Lazarov, Raytcho
name: Mao, Youli
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65N

description: We apply geometric multigrid methods for the finite element approximation of flow problems governed by Darcy and Brinkman systems used in modeling highly heterogeneous porous media. The method is based on divergence-conforming discontinuous Galerkin methods and overlapping, patch based domain decomposition smoothers. We show in benchmark experiments that the method is robust with respect to mesh size and contrast of permeability for highly heterogeneous media.
description: 15 pages, 8 figures
Recombination Parameters Measurement of Silicon Solar Cell Under Constant White Bias Light
Creators: name: Samb, M.L.
name: Dieng, M.
name: Mbodji, S.
name: Mbow, B.
name: Thiam, N.
name: Barro, F.I.
name: Sissoko, G.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 469-472
description: The motivation of this work has been to develop a new concept of the junction and back surface recombination velocity SF and SB on a
silicon solar cell under white bias illumination for minority carrier’s recombination measurement. The photocurrent density Jph is
presented as a calibrated function, diffusion length dependent. It intercepts the experimental short circuit current density JSC, at the minority
carrier’s diffusion length L value. The photovoltage as a calibrated function of surface recombination velocity intercept the experimental
open circuit voltage at the junction intrinsic recombination velocity.
Graph Laplacian Regularization for Image Denoising: Analysis in the Continuous Domain
Creators: name: Pang, Jiahao
name: Cheung, Gene
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Inverse imaging problems are inherently under-determined, and hence it is important to employ appropriate image priors for regularization. One recent popular prior---the graph Laplacian regularizer---assumes that the target pixel patch is smooth with respect to an appropriately chosen graph. However, the mechanisms and implications of imposing the graph Laplacian regularizer on the original inverse problem are not well understood. To address this problem, in this paper we interpret neighborhood graphs of pixel patches as discrete counterparts of Riemannian manifolds and perform analysis in the continuous domain, providing insights into several fundamental aspects of graph Laplacian regularization for image denoising. Specifically, we first show the convergence of the graph Laplacian regularizer to a continuous-domain functional, integrating a norm measured in a locally adaptive metric space. Focusing on image denoising, we derive an optimal metric space assuming non-local self-similarity of pixel patches, leading to an optimal graph Laplacian regularizer for denoising in the discrete domain. We then interpret graph Laplacian regularization as an anisotropic diffusion scheme to explain its behavior during iterations, e.g., its tendency to promote piecewise smooth signals under certain settings. To verify our analysis, an iterative image denoising algorithm is developed. Experimental results show that our algorithm performs competitively with state-of-the-art denoising methods such as BM3D for natural images, and outperforms them significantly for piecewise smooth images.
description: More discussions and results are provided
Mixed Models: Combining Incompatible Scalar Models in Any Spacetime Dimension
Creators: name: Klauder, John R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Traditionally, covariant scalar field theory models are either super renormalizable, strictly renormalizable, or nonrenormalizable. The goal of `Mixed Models' is to make sense of sums of these distinct examples, e.g., $gφ^4_3+g'φ^6_3+g''φ^8_3$, which includes an example of each kind for spacetime dimension $n=3$. We show how the several interactions such mixed models have may be turned on and off in any order without any difficulties. Analogous results are shown for $gφ^4_n+g'φ^{138}_n$, etc., for all $n\ge3$. Different categories hold for $n=2$ such as, e.g., ${g P(φ)_2+g' N\!P}(φ)_2$, that involve polynomial ($P$) and suitable nonpolynomial ($N\!P$) interactions, etc. Analogous situations for $n=1$ (time alone) offer simple `toy' examples of how such mixed models may be constructed.
description: 14 pages
Ringing and echoes from black bounces surrounded by the string cloud
Creators: name: Yang, Yi
name: Liu, Dong
name: Xu, Zhaoyi
name: Long, Zheng-Wen
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the string theory, the fundamental blocks of nature are not particles but one-dimensional strings. Therefore, a generalization of this idea is to think of it as a cloud of strings. Rodrigues et al. embedded the black bounces spacetime into the string cloud, which demonstrates that the existence of the string cloud makes the Bardeen black hole singular, while the black bounces spacetime remains regular. On the other hand, the echoes are the correction to the late stage of the quasinormal ringing for a black hole, which is caused by the deviation of the spacetime relative to the initial black hole spacetime geometry in the near-horizon region. In this work, we study the gravitational wave echoes of black bounces spacetime surrounded by a cloud of strings under scalar field and electromagnetic field perturbation to explore the effects caused by a string cloud in the near-horizon region. The ringing of the regular black hole and traversable wormhole with string cloud are presented. Our results demonstrate that the black bounce spacetime with strings cloud is characterized by gravitational wave echoes as it transitions from regular black holes to wormholes, i.e. the echoes signal will facilitate us to distinguish between black holes and the wormholes in black bounces surrounded by the string cloud.
Global Off-Grid PV Markets
Creators: name: Schmidt, F.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Systems
Off-grid Applications and Rural Electrification

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 4321-4323
description: At the moment about 1.7 billion people worldwide do not have access to electricity. 80% of them live
in rural regions.[1] Off-grid photovoltaic (PV) technology holds a lot of possibilities for both the population of these
regions cut off from the power grid and the PV industry. However, the current significance of off-grid PV is quite
marginal. The main reasons for this are the high component prices of the last years, financing problems, lacking
distribution structures and the implementation of feed-in tariff laws in several industrialized countries during the last
few years, which led to a boom in on-grid PV. The latter caused an enormous ramp-up of production capacities.
Since the feed-in tariffs have been reduced in countries that are on-grid leaders, such as Germany and Spain, the
supply is currently exceeding the demand for PV modules. In addition, an increasing number of stakeholders are
becoming active in the development of fair financing structures in developing countries. In the face of this, off-grid
PV serves as a very promising alternative for market participants from the PV production and distribution sector.
This paper is based on primary research survey published in May 2009.[2] Within the scope of this analysis,
important market participants from the PV industry as well as from the project development/installation sector in
regional key markets have been surveyed quantitatively. The results have been verified and enriched with qualitative
interviews with relevant stakeholders from the field of public and private project financing and organization. Finally,
information has been included which was collected by means of desk research within EuPD Research internal
databases as well as in further external market studies and publications.
Superradiance of non-Dicke states
Creators: name: Nefedkin, N. E.
name: Andrianov, E. S.
name: Zyablovsky, A. A.
name: Pukhov, A. A.
name: Vinogradov, A. P.
name: Lisyansky, A. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In 1954, Dicke predicted that a system of quantum emitters confined to a subwavelength volume would produce a superradiant burst. For such a burst to occur, the emitters must be in the special Dicke state with zero dipole moment. We show that a superradiant burst may also arise for non-Dicke initial states with nonzero dipole moment. Both for Dicke and non-Dicke initial states, superradiance arises due to a decrease in the dispersion of the quantum phase of the emitter state. For non-Dicke states, the quantum phase is related to the phase of long-period envelopes which modulate the oscillations of the dipole moments. A decrease in dispersion of the quantum phase causes a decrease in the dispersion of envelope phases that results in constructive interference of the envelopes and the superradiant burst.
Near-Field Photoelectric Measurement of Si Solar Cells
Creators: name: Skarvada, P.
name: Tomanek, P.
name: Macku, R.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 480-483
description: This paper treats of nondestructive local silicon solar cell sample measurement and characterization.
Used method, harnessing scanning near field optical microscope in reflection regime with keying laser excitation,
allows a localization and characterization of structure imperfections. Keyingless and keying optical excitation
measurement methods are discussed. Low energy optical excitation permits measurement only in small range of I-V
characteristics, where the shunt resistance is dominant. Described method has been adapted for the simultaneous
measurement of sample surface topography, its optical properties as well as sample local photoelectric properties.
Structure imperfections taking effect on current voltage characteristics were observed and its size, photoelectric and
electric properties were measured. Although the relationships of local imperfection with electric measurement were
ascertained, their confirmation will be a subject of ongoing work.
Spatiotemporal characterization of forest disturbance in the Hunsrück-Hochwald National Park
Creators: name: Enmanuel Rodriguez
Publisher: name: Zenodo
Year: 2022
Subjects: Forest disturbance attribution, machine learning, Landsat, time series

description: The characterization of forest disturbance is a critical challenge for remote sensing forest monitoring, which has made promising progress in the last decade, helped by the ever-growing volume of freely available data. There are many viable approaches for mapping forest disturbance causality using spectral and temporal metrics derived from annual Landsat time series nevertheless, in most cases, those implementations depend on visual interpretation of the spectral signal or very high-resolution imagery with fewer cases using field data for training or validating the attribution models. To tackle the missing ground truth problem, we use the ICP-Forest Visual assessment of crown condition and damaging agents survey to address the lack of historical forest disturbance field data. The ICP-Forest Network collects forest health information annually in approximately 6,200 plots distributed across Europe since 1985. The crown condition survey provides the percentage of defoliation of individual trees and additionally the cause of the defoliation. The main goal of this project is to determine the suitability of the ICP Forest data to be used as training in a machine learning framework (ML).
Improved Electrical Characterization of Silicon Solar Cells Based on Noise Spectroscopy in Forward Direction
Creators: name: Macku, R.
name: Koktavy, P.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 484-488
description: This paper analyses in detail the issue of non-destructive testing of n+p silicon solar cells. Their
extremely large junctions contain lots of defect regions which deteriorate the properties of the whole solar cells. In
the present work, we carried out experiments and theoretical description for the bulk inhomogeneity of the samples
qualification. We propose an equivalent circuit model for the current-voltage characteristics of forward biased n+p
solar cells, too. The model takes into account leakage current, series resistance and different mechanisms of charge
transport. Spread series resistance issue of a solar cell front contact has been discussed and experimentally
demonstrated. The electrical model admits analytical solution using e.g. the Lambert W-function and it has been
tested for some spices of a solar cell in forward direction. Last but not least we use obtained information for
description of the samples noise behaviour and we suggest noise model containing flicker noise, shot noise and G-R
noise variant.
Förderung von Kreislaufwirtschaft im Bekleidungssektor der Stadt Zürich. Eine Analyse über die Einflussfaktoren bei der Integration von Kreislaufwirtschaft in das Geschäftsmodell
Creators: name: Pusceddu, Tabea
Publisher: name: Hochschule für Angewandte Psychologie FHNW
Year: 2023
Subjects: subject: 330 - Wirtschaft

description: Mit zunehmendem Kleiderkonsum nehmen auch die Umweltbelastungen durch die Modeindustrie zu. Bei der Kleiderproduktion werden Schadstoffe ausgestossen sowie viele Ressourcen verbraucht. Bei den Konsument:innen angekommen, werden Kleidungsstücke oft nur wenige Male getragen, bevor sie entsorgt werden. Eine Rückführung der Rohstoffe in die Kreisläufe sowie eine längere Nutzungsdauer sind unabdingbar, um die negativen Folgen für die Umwelt einzudämmen. Das Umwelt- und Gesundheitsschutzdepartement der Stadt Zürich hat sich zum Ziel gesetzt, die indirekten Emissionen, welche im Bekleidungssektor anfallen, im Rahmen ihres Netto-Null-Ziels durch die Förderung einer Kreislaufwirtschaft zu senken. Dafür wurden Einflussfaktoren identifiziert, welche bei kleinen und mittleren Bekleidungsgeschäften als Motivatoren oder Barrieren bei der Integration von Kreislaufwirtschaft in das Geschäftsmodell wirken und als Chancen oder Risiken wahrgenommen werden. Geschäftsführende von diesen Bekleidungsgeschäften wurden mittels qualitativen Interviews befragt. Danach wurden aus den gewonnenen Ergebnissen Handlungsempfehlungen abgeleitet, um diesen Transformationsprozess bestmöglich zu unterstützen.
Computational Imaging for VLBI Image Reconstruction
Creators: name: Bouman, Katherine L.
name: Johnson, Michael D.
name: Zoran, Daniel
name: Fish, Vincent L.
name: Doeleman, Sheperd S.
name: Freeman, William T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: I.4, I.4.5, I.4.4, G.1.8, J.2

description: Very long baseline interferometry (VLBI) is a technique for imaging celestial radio emissions by simultaneously observing a source from telescopes distributed across Earth. The challenges in reconstructing images from fine angular resolution VLBI data are immense. The data is extremely sparse and noisy, thus requiring statistical image models such as those designed in the computer vision community. In this paper we present a novel Bayesian approach for VLBI image reconstruction. While other methods often require careful tuning and parameter selection for different types of data, our method (CHIRP) produces good results under different settings such as low SNR or extended emission. The success of our method is demonstrated on realistic synthetic experiments as well as publicly available real data. We present this problem in a way that is accessible to members of the community, and provide a dataset website (vlbiimaging.csail.mit.edu) that facilitates controlled comparisons across algorithms.
description: Accepted for publication at CVPR 2016, Project Website: http://vlbiimaging.csail.mit.edu/, Video of Oral Presentation at CVPR June 2016: https://www.youtube.com/watch?v=YgB6o_d4tL8
SiC Precipitates in Block-Cast Multicrystalline Silicon: A TEM Characterization
Creators: name: Lotnyk, A.
name: Bauer, J.
name: Breitenstein, O.
name: Blumtritt, H.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1406-1409
description: The microstructure of SiC particles and SiC filament-type precipitates found in block-cast multicrystalline Si was studied in detail by transmission electron microscopy (TEM). TEM investigations showed that the SiC particles are monocrystalline and the SiC filaments are microcrystalline. Both types of precipitates consist of cubic SiC (3C polytype). However, a high density of planar defects was found in the filaments. High-resolution TEM analysis of the interface between SiC filaments and Si matrix revealed that the interface is rough and very wavy. SiC filaments do not show a special orientation relationship with respect to the Si matrix. The growth mechanisms of SiC precipitates are discussed. The influence of SiC inclusions in terms of device performance is also considered.
The phase diagram of Einstein-Weyl gravity
Creators: name: Silveravalle, Samuele
name: Zuccotti, Alessandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Thanks to their interpretation as first order correction of General Relativity at high energies, quadratic theories of gravity gained much attention in recent times. Particular attention has been drawn to the Einstein-Weyl theory, where the addition of the squared Weyl tensor to the action opens the possibility of having non-Schwarzschild black holes in the classical spectrum of the theory. Static and spherically symmetric solutions of this theory have been studied and classified in terms of their small scales behaviour; however, a classification of these solutions in terms of the asymptotic gravitational field is still lacking. In this paper we address this point and present a phase diagram of the theory, where the different types of solutions are shown in terms of their mass and the strength of a Yukawa-like correction to the gravitational field. In particular we will show that, in the case of compact stars, different equations of state imply different Yukawa corrections to the gravitational potential, with possible phenomenological implications.
description: 10 pages, 7 figures
Future SCADA Requirements for PV Systems
Creators: name: Carstens, J.H.
name: Berg, S.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Systems
PV Power Plants

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 4291-4292
description: Due to size and proportion PV power plants are more and more in focus regarding their technical
behavior in public grids. As a result Transmission System Operators are defining new rules for PV farms with respect
to power quality and controllability.
Furthermore, investors of PV plants need to get optimized and compacted information of their investments.
In addition, service and operators need to get highest remote control of PV plants.
As a result there are several requirements for future SCADA (Supervisory Control And Data Acquisition) systems
which differ from today’s monitoring systems regarding structure and complexity.
Skalenentwicklung für die Teamprozessfaktoren Emotionsregulation auf Teamebene und Verhandeln auf Teamebene
Creators: name: Tan, Heleni
Publisher: name: Hochschule für Angewandte Psychologie FHNW
Year: 2023
Subjects: subject: Emotionsregulation auf Teamebene
subject: Verhandeln auf Teamebene
subject: Konflikte
subject: Teamprozessfaktoren
subject: Teamleistung
subject: Teamzufridenheit
subject: Konfliktlösung
subject: Skalenentwicklung
subject: 330 - Wirtschaft

description: Das Ziel der vorliegenden Masterarbeit ist die Skalenentwicklung für die Teamprozessfaktoren Emotionsregulation auf Teamebene und Verhandeln auf Teamebene. Ausschlaggebend ist die Wichtigkeit dieser Teamprozessfaktoren für die Beziehung von Konflikten und deren Output (z.B. Teamleistung; Oore et al., 2015). Die bestehende Skala zur Emotionsregulation auf Teamebene von Curşeu et al. (2012) wurde in die Deutsche Sprache übersetzt und die Skala Verhandeln auf Teamebene neu entwickelt. Die Skalen wurden mittels Fragebogen und einer Stichprobe aus 64 Teams, die in Organisationen tätig sind, evaluiert. Die Resultate bestätigen, dass die übersetzten Items die Skala Emotionsregulation auf Teamebene angemessen erfassen. Die Skala Verhandeln auf Teamebene wurde anhand von 10 Items konzipiert, welche sich auf Gegenstände von Konflikten und Kommunikation im Team beziehen. Die entwickelten Skalen stellen wichtige Instrumente dar, die für zukünftige Forschung, wie z.B. für Untersuchungen des IPO-Modells, genutzt werden können.