cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Velocity-dependent J-factors for Milky Way dwarf spheroidal analogues in cosmological simulations
Creators: name: Blanchette, Keagan
name: Piccirillo, Erin
name: Bozorgnia, Nassim
name: Strigari, Louis E.
name: Fattahi, Azadeh
name: Frenk, Carlos S.
name: Navarro, Julio F.
name: Sawala, Till
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the impact of the dark matter velocity distribution modelling on signals from velocity-dependent dark matter annihilation in Milky Way dwarf spheroidal galaxies. Using the high resolution APOSTLE simulations, we identify analogues corresponding to Milky Way dwarf spheroidal galaxies, and from these directly determine the dark matter pair-wise relative velocity distribution, and compare to best-fitting Maxwell-Boltzmann distribution models. For three velocity-dependent annihilation models, p-wave, d-wave, and the Sommerfeld model, we quantify the errors introduced when using the Maxwell-Boltzmann parameterization. We extract a simple power-law relation between the maximum circular velocity of the dwarf spheroidal analogue and the peak speed of the Maxwell-Boltzmann distribution. We show that this relation can be used to accurately calculate the dark matter relative velocity distribution, and find that it allows us to estimate the dark matter annihilation signal without the need to directly calculate the relative velocity distribution for each galaxy. The scatter in the J-factors calculated from the analogues dominates the uncertainty obtained when compared to the J-factor as determined from the observational data for each dwarf spheroidal, with the largest scatter from d-wave models and the smallest from Sommerfeld models.
description: 17 pages, 7 figures, 2 tables
Technical Specifications and Quality Control Procedures for Reducing the Uncertainty in PV Installations: Results of the FP7 Project PVCROPS
Creators: name: Martinez-Moreno, F.
name: Lorenzo, E.
name: Narvarte, L.
name: Moreton Villagrá, R.
name: Tyutyundzhiev, N.
name: De La Parra, I.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2225-2229
description: PVCROPS (PhotoVoltaic Cost r€duction, Reliability, Operational performance, Prediction and
Simulation) is a project within the European Framework Programme 7 whose objectives are: improving the
performance, reliability and lifetime of PV systems; reducing the cost of PV systems; and enhancing the integration
of PV into the grid. The main way to reduce the initial costs of a PV installation involves an optimal design and
subsequent construction. As a consequence, this optimization leads to a higher performance and to a lower levelized
cost of electricity from PV. PVCROPS Work Package 2 and Work Package 9 have been conceived to achieve some
of these objectives by proposing both an optimization of the design, to avoid undesirable initial mistakes that can
make more expensive the cost of the installation, and a quality control of PV systems, to ensure the final installation
matches the one designed initially and that it is able to overcome production requirements. This paper presents one of
the main results of these work packages: a document that reflects the accumulated experience in the field by the
PVCROPS team about actual PV installations and which contains, first, a general proposal of technical specifications
for grid-connected PV systems and, second, the corresponding quality control procedures to check if the installation
fulfills the technical specifications previously established. This document has also a report about a comparison
between available PV energy performance models and a proposal about how to face the hot-spot problem within
commercial frameworks.
Quantum Zeno effect in the strong measurement regime of circuit quantum electrodynamics
Creators: name: Slichter, D. H.
name: Müller, C.
name: Vijay, R.
name: Weber, S. J.
name: Blais, A.
name: Siddiqi, I.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We observe the quantum Zeno effect -- where the act of measurement slows the rate of quantum state transitions -- in a superconducting qubit using linear circuit quantum electrodynamics readout and a near-quantum-limited following amplifier. Under simultaneous strong measurement and qubit drive, the qubit undergoes a series of quantum jumps between states. These jumps are visible in the experimental measurement record and are analyzed using maximum likelihood estimation to determine qubit transition rates. The observed rates agree with both analytical predictions and numerical simulations. The analysis methods are suitable for processing general noisy random telegraph signals.
description: 15 pages, 8 figures
Pteropus pumilus Miller 1911
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus pumilus

description: Pteropus pumilus Miller, 1911. Proc. U.S. Natl. Mus., 38:394. TYPE LOCALITY: Indonesia, Miangas Isl between Talaud Isis and Mindanao. DISTRIBUTION: Philippines. STATUS: CITES - Appendix II. SYNONYMS: balutus, tablasi. COMMENTS: Includes balutus and tablasi; see Klingener and Creighton (1984).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 150, DOI: 10.5281/zenodo.7353060
description: {"references": ["Klingener, D., and G. K. Creighton. 1984. On small bats of the genus Pteropus from the Philippines. Proceedings of the Biological Society of Washington, 97: 395 - 403."]}
Rindfleischerzeugung mit Mutterkühen: eine Alternative zur Nutzung von Grünland
Creators: name: Brade, Wilfried
Publisher: name: Berichte über Landwirtschaft - Zeitschrift für Agrarpolitik und Landwirtschaft
Year: 2022

description: Rindfleisch ist ein Schlüsselprodukt aus der Rinderhaltung und stammt entweder aus der Mutterkuh- oder der Milchkuhhaltung. Zahlreiche Auswertungen zeigen, dass die Fleischerzeugung mit Milchkühen das klimafreundlichste Verfahren (aus der Blickrichtung des CO2-Fußabdruckes je Einheit Rindfleisch) darstellt. Die günstige Klimabilanz ergibt sich vor allem daraus, dass hier das Rindfleisch als Koppelprodukt der Milchproduktion anfällt. Die THG-Emissionen für Rindfleisch aus der Mutterkuhhaltung sind - aus globaler Sicht - fast viermal so hoch wie die von den Milchkuhherden. Allerdings sind mit der Rindfleischerzeugung mit Mutterkühen notwendigerweise auch zugehörige Vorteile zu nennen, wie die Grünlandnutzung an Standorten, an denen eine ackerbauliche Nutzung aufgrund der klimatischen und der geomorphologischen Gegebenheiten nicht möglich oder ungünstig ist, einschließlich der Bereitstellung von Ökosystemdienstleistungen und der Förderung des ländlichen Raumes. Darüber hinaus werden, speziell auch bei extensiven Formen der Rindfleischerzeugung wertvolle Biotope und/oder Kulturlandschaften erhalten und damit die Biodiversität gefördert. Die Rindfleischerzeugung mit Mutterkühen liefert somit nicht nur ein hochwertiges Nahrungsmittel und weitere Produkte (wie Dung, Häute und Haare sowie Knochen und Hörner) sondern kann auch - dem Standort richtig angepasst - viele positive Auswirkungen auf die Umwelt, einschließlich des Schutzes von Grünlandökosystemen und der Erhaltung der Biodiversität und des Bodenkohlenstoffs haben.
description: Berichte über Landwirtschaft - Zeitschrift für Agrarpolitik und Landwirtschaft, Aktuelle Beiträge
Magnetic Structure of the $S\,{=}\,1/2$ Quasi-Two-Dimensional Square-Lattice Heisenberg Antiferromagnet Sr$_2$CuTeO$_6$
Creators: name: Koga, Tomoyuki
name: Kurita, Nobuyuki
name: Avdeev, Maxim
name: Danilkin, Sergey
name: Sato, Taku J.
name: Tanaka, Hidekazu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magnetic structure of the double perovskite compound Sr$_2$CuTeO$_6$ was determined from neutron powder diffraction data. This material is magnetically described as an $S\,{=}\,1/2$ quasi-two-dimensional square-lattice Heisenberg model with antiferromagnetic nearest-neighbor and next-nearest-neighbor interactions. Sr$_2$CuTeO$_6$ undergoes a magnetic phase transition at $T_{\rm N}\,{\simeq}\,29\,$ K. The spin structure below $T_{\rm N}$ is Néel antiferromagnetic on the square lattice, which means that the nearest-neighbor interaction ($J_1$) is stronger than the next-nearest-neighbor interaction ($J_2$), in contrast to other isostructural compounds such as Ba$_2$CuWO$_6$ and Sr$_2$CuWO$_6$, for which $|J_1|\,{
description: 6 pages, 7 figures, to appear in Phys. Rev. B
Comparative Study of Nonparametric and Parametric PV Models to Forecast AC Power Output of PV Plants
Creators: name: Pinho Almeida, M.P.
name: Muñoz, M.
name: De La Parra, I.
name: Perpiñán, O.
name: Narvarte, L.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2230-2234
description: In this paper, a comparison between two approaches to predict the AC power output of PV systems is carried out in terms of forecast performance. Each approach uses one of the two main types of PV modeling, parametric and nonparametric, and both use as inputs several forecasts of meteorological variables from a Numerical Weather Prediction model. Furthermore, actual AC power measurements of a PV plant are used to train the nonparametric model, to adjust the parameters of the different PV components models used in the parametric approach and to assess the quality of the forecasts. The approaches presented similar behavior, although the nonparametric approach, based on Quantile Regression Forests, showed smaller biased errors due to the machine learning tool used.
TikTok y la campaña presidencial del 2022 en Colombia. Análisis comparativo de contenidos digitales de los candidatos Sergio Fajardo, Oscar Iván Zuluaga y Rodolfo Hernández
Creators: name: Molano Olmos, Mónica Alejandra
name: Melo Parra, Lisseth Tatiana
Publisher: name: Universidad Externado de Colombia
Year: 2022
Subjects: subject: Comunicación en política
subject: Redes sociales
subject: Candidatos políticos
subject: TikTok
subject: Análisis de contenido
subject: Elecciones presidenciales
subject: Colombia
subject: Persuasión

description: Las plataformas digitales están cambiando la forma de consumir contenidos. En la actualidad los políticos necesitan cambiar los canales que solían administrar, deben unirse a las nuevas redes sociales para convencer y persuadir a la gente sobre sus ideologías. TikTok parece ser una oportunidad para conectar con otras generaciones y hacer comunidades tanto digitales como reales para transformarlas luego en electores. El objetivo de este estudio es hacer un análisis comparativo de los contenidos compartidos en TikTok por tres candidatos a las elecciones presidenciales de Colombia del año 2022; puntualizando en las características de las publicaciones se busca analizar el mensaje y las interacciones que se gestan entre usuario y contenido. Algunos resultados a los que se llegó mediante la recolección de datos es la heterogeneidad de los contenidos, así como la falta de una estrategia de comunicación clara y contundente entre los candidatos.
description: Digital platforms are changing the way of consuming content. Today politicians need to change the channels they used to use to spread content, now they must join the new social networks to convince and persuade people with their ideologies. In that sense, TikTok seems to be an opportunity to connect with other generations and create real and digital communities to later transform them into voters. The objective of this study is to make a comparative analysis of the contents of three candidates for the presidential elections of Colombia in 2022; analyzing the characteristics of the publications, the message and the interactions that take place between user and content is carried out. The results were obtained by collecting data, taking advantage of the heterogeneity of the contents. One of the challenges posed by this platform is that candidates must generate clear and forceful communication strategies.
Hyperparametric oscillation via bound states in the continuum
Creators: name: Lei, Fuchuan
name: Ye, Zhichao
name: Twayana, Krishna
name: Gao, Yan
name: Girardi, Marcello
name: Helgason, Óskar B.
name: Zhao, Ping
name: Torres-Company, Victor
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Optical hyperparametric oscillation based on the third-order nonlinearity is one of the most significant mechanisms to generate coherent electromagnetic radiation and produce quantum states of light. Advances in dispersion-engineered high-$Q$ microresonators allow for generating signal waves far from the pump and decrease the oscillation power threshold to submilliwatt levels. However, the pump-to-signal conversion efficiency and absolute signal power are low, fundamentally limited by parasitic mode competition and attainable cavity intrinsic $Q$ to coupling $Q$ ratio, i.e., $Q_{\rm i}/Q_{\rm c}$. Here, we use Friedrich-Wintgen bound states in the continuum (BICs) to overcome the physical challenges in an integrated microresonator-waveguide system. As a result, on-chip coherent hyperparametric oscillation is generated in BICs with unprecedented conversion efficiency and absolute signal power. This work not only opens a path to generate high-power and efficient continuous-wave electromagnetic radiation in Kerr nonlinear media but also enhances the understanding of microresonator-waveguide system - an elementary unit of modern photonics.
Pteropus rayneri Gray 1870
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus rayneri

description: Pteropus rayneri Gray, 1870. Cat. Monkeys, Lemurs, Fruit-eating Bats Brit. Mus., p. 108. TYPE LOCALITY: Solomon Isis, Guadalcanal Isl. DISTRIBUTION: Solomon Isis. STATUS: CITES - Appendix II. SYNONYMS: cognatus, grandis, lavellanus, monoensis, rennelli, rubianus. COMMENTS: Includes cognatus; see Hill (1962a). Corbet and Hill (1980:36) listed cognatus as a distinct species without comment.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 150, DOI: 10.5281/zenodo.7353060
description: {"references": ["Hill, J. E. 1962 a. A little-known fruit-bat from Rennel Island. The Natural History of Rennel Island, British Solomon Islands, 4: 7 - 9.", "Corbet, G. B., and J. E. Hill. 1980. A world list of mammalian species. British Museum (Natural History), London, 226 pp."]}
RabbitShop
Creators: name: Martínez Arroyo, Daniel Isaac
name: Sarmiento Benítez, Nicolás Mateo
Publisher: name: Universidad Externado de Colombia
Year: 2022
Subjects: subject: Consejeria sexual
subject: Mercadeo
subject: Productos
subject: Educación sexual
subject: Marketing digital
subject: Sex shop
subject: Experiencia digital
subject: Emprendimiento

description: Rabbitshop es un negocio que comercializa productos para la vida sexual y busca también educar en este ámbito a través de los contenidos que distribuye en plataformas digitales. Sin embargo, la falta de conocimiento hizo que se realizara una consultoría para crear un plan de acción estructurado que le permita entender su modelo de negocio y encuentre buenas prácticas de comercio digital y de contenido para su crecimiento.
description: Rabbitshop is a business that markets products for sexual life and also seeks to educate in this area through the content it distributes on digital platforms. However, the lack of knowledge led to a consultancy to create a structured action plan that allows them to understand their business model and find good digital commerce and content practices for their growth.
Chemical evolution of local galaxies
Creators: name: Fariña, Artemi Camps
name: Blázquez, Patricia Sánchez
name: Sánchez, Sebastián F.
Publisher: name: Zenodo
Year: 2022

description: We show the results of a study using the spectral synthesis technique study to measure the chemical evolution of local galaxies. The main parameters measured are the chemical enrichment history (ChEH) and the evolution of the stellar mass-metallicity relation (MZR) over cosmic time. We find that the more massive galaxies became enriched first and the lower-mass galaxies did so later, producing a change in the MZR that becomes shallower in time. The mass dependence of the MZR becomes less relevant for later morphological types, to the extent that it inverts for Sd/Irr galaxies, suggesting that morphology is at least as important a factor as mass in the chemical evolution. We also find that the average metallicity gradient is currently negative for all mass bins but for low-mass galaxies it used to be positive before switching to the current negative average value. Some galaxies show decreases in their ChEHs, which we find correlate with the presence of an AGN and the sSFR. Finally, by comparing the expected yields of the star-forming histories to the measured ChEHs using a chemical evolution model we can estimate the history of pristine gas accretion over the lifetime of the galaxies. The inflow histories show that for a galaxy to still be forming stars in the present time it requires a steady flow of pristine gas which dilutes its chemical content, meaning the primary parameter that shapes the star-forming main sequence is access to gas accretion.
title: Understanding the drivers of smallholder contract participation and compliance in Nigeria’s tomato processing markets
Creators: name: Umar, Umar Shehu
Publisher: name: University of Reading
Year: 2023

description: The study aims to enhance contract performance at farmer–processor interaction. The Dangote Tomato Processing Plant (DTPP) was investigated as a case study, the largest functional processing plant with over 10,000 contract farmers. To achieve its specific objectives, the study uses mixed research methods comprising in-depth Interviews, focus groups, as well as binary and ordered logistic models. The manager of DTPP and three traders identified by snowballing techniques were interviewed. Ten farmers were recruited in each of the four selected catchment areas of DTPP for focus group discussions. The novel transaction-level data were collected from 300 random contract farmers every time they made a sale throughout the 2021 dry season harvest period, covering over 1306 transactions. The qualitative data established that the cost of entry into the processing market, delayed harvest delivery, payment arrangement, and perceived uncertainties over the company’s prospects impede farmers' contract participation. The binary logistic regression results revealed that open fresh market prices and payment delays negatively affect farmers' compliance behaviour. The ordered logistic regression results revealed that, while COVID-19, Anchor Borrower Program and delayed transactions payment widened farmers' expected– observed compliance gap, resource provision, and bonuses minimized farmers expected– observed compliance behaviour gap. The study concludes that contracts may perform better if contracting agribusinesses developed an organized schedule of harvest collection, devise a reliable and timely payment plan, and introduce incentives in the contract. At the same time, government policies that aim to enhance contracts may do better if they continue to pay more attention to providing improved seeds, extension, and other services critical to the agro�processing market. Although the findings of this study could be applied to other contracting agribusiness firms, further study is needed to enforce the findings.
Tessera: Maximizing PV Yield Performance with Size Flexibility for BIPV
Creators: name: Eerenstein, W.
name: Jansen, M.J.
name: De Groot, K.M.
name: Carr, A.J.
name: Okel, L.A.G.
name: Goris, M.J.A.A.
name: Van Roosmalen, J.A.M.
name: Bende, E.E.
name: Jonkman, R.
name: Van Der Sanden, R.
name: Bakker, J.
name: De Gier, B.
name: Harthoorn, A.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2216-2219
description: Application of PV in the built environment, both as BAPV and BIPV, requires improved aesthetics,
decreased operating temperatures of the modules and diodes, improved output under partial shading and reduced
production costs while allowing the size and shape of the PV elements to be more flexible.
ECN presents TESSERA: a novel PV module lay-out which allows linear shade performance, while at the same time
allowing size and manufacturing flexibility which also leads to improved aesthetics as entire roof and façade areas
can be utilized. Temperature measurements on module diodes shows the diodes in these PV modules only reach a
temperature of 40°C compared to 140°C for conventional ones. Mechanical load tests to rails glued to the rear of the
PV modules shows the interconnections are stable, allowing vertical, frameless installation. Hence, these TESSERA
elements allow broader application of PV in the built environment.
New criteria to detect singularities in experimental incompressible flows
Creators: name: Kuzzay, Denis
name: Saw, Ewe-Wei
name: Martins, Fabio J. W. A.
name: Faranda, Davide
name: Foucaut, Jean-Marc
name: Daviaud, François
name: Dubrulle, Bérengère
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We introduce two new singularity detection criteria based on the work of Duchon-Robert (DR) [J. Duchon and R. Robert, Nonlinearity, 13, 249 (2000)], and Eyink [G.L. Eyink, Phys. Rev. E, 74 (2006)] which allow for the local detection of singularities with scaling exponent $h\leqslant1/2$ in experimental flows, using PIV measurements. We show that in order to detect such singularities, one does not need to have access to the whole velocity field inside a volume but can instead look for them from stereoscopic particle image velocimetry (SPIV) data on a plane. We discuss the link with the Beale-Kato-Majda (BKM) [J.T. Beale, T. Kato, A. Majda, Commun. Math. Phys., 94, 61 (1984)] criterion, based on the blowup of vorticity, which applies to singularities of Navier-Stokes equations. We illustrate our discussion using tomographic PIV data obtained inside a high Reynolds number flow generated inside the boundary layer of a wind tunnel. In such a case, BKM and DR criteria are well correlated with each other.
Testing the black hole area law with Event Horizon Telescope
Creators: name: Wang, Deng
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Hawking's black hole area theorem can be tested by monitoring the evolution of a single black hole over time. Using current imaging observations of two supermassive black holes M87* and Sgr A* from the Event Horizon Telescope (EHT), we find their horizon area variation fractions are consistent with the prediction of the black hole area law at the $1\,σ$ confidence level. We point out that whether the black hole area law is valid or not could be determined by future high precision EHT observations of Sgr A*.
description: 4 pages, 4 figs
The instability and non-existence of multi-stranded loops, when driven by transverse waves
Creators: name: Magyar, N.
name: Van Doorsselaere, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In recent years, omni-present transverse waves have been observed in all layers of the solar atmosphere. Coronal loops are often modeled as a collection of individual strands, in order to explain their thermal behaviour and appearance. We perform 3D ideal MHD simulations to study the effect of a continuous small amplitude transverse footpoint driving on the internal structure of a coronal loop composed of strands. The output is also converted to synthetic images, corresponding to the AIA 171 A and 193 A passbands, using FoMo. We show that the multi-stranded loop ceases to exist in the traditional sense of the word, because the plasma is efficiently mixed perpendicularly to the magnetic field, with the Kelvin-Helmholtz instability acting as the main mechanism. The final product of our simulation is mixed loop with density structures on a large range of scales, resembling a power-law. Thus, multi-stranded loops are unstable to driving by transverse waves, and this raises a strong doubt on the usability and applicability of coronal loop models consisting of independent strands.
Pteropus rodricensis Dobson 1878
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus rodricensis

description: Pteropus rodricensis Dobson, 1878. Cat. Chiroptera Brit. Mus., p. 36. TYPE LOCALITY: Mascarene Isis, Rodrigues. DISTRIBUTION: Rodrigues Isl, Round Isl near Mauritus Isl (Mascarene Isis.). STATUS: CITES - Appendix II; U.S. ESA - Endangered; IUCN - Endangered; extinct on Round Isl. SYNONYMS: mascarinus. COMMENTS: See Bergmans (1990).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 150, DOI: 10.5281/zenodo.7353060
description: {"references": ["Bergmans, W. 1990. Taxonomy and biogeography of African fruit bats (Mammalia: Megachiroptera). 3. The genera Scotonycteris Matschie, 1894, Casinycteris Thomas, 1910, Pteropus Brisson, 1762, and Eidolon Rafinesque, 1815. Beaufortia, 40 (7): 111 - 177."]}
Típicos de Colombia - Consultoría
Creators: name: Romero Leon, Jenny Katherine
name: García Medina, Sarai
Publisher: name: Universidad Externado de Colombia
Year: 2022
Subjects: subject: Ventas
subject: Comercio
subject: Negocios
subject: Achiras
subject: Microempresa
subject: Mercadeo
subject: Transformación digital
subject: Metaverso

description: Propuesta de marketing digital y tradicional para Típicos D Colombia, empresa pequeña con un modelo de negocio B2B2C, que fabrica y comercializa achiras, producto alimenticio típico colombiano. La propuesta tiene como objetivo el aumento del engagement, posicionamiento de marca, e incremento de su participación de mercado en mínimo 0,7% en el 2023, a través del desarrollo de estrategias enfocadas en mejorar las ocho subáreas de mercadeo con mayor potencial dentro de la compañía, la definición de los canales de comunicación y herramientas a utilizar para los dos públicos objetivo; todo enmarcado en el objetivo de largo plazo de la compañía el cual corresponde a la obtención del sello de Empresa B. Se proponen 8 estrategias dirigidas al fortalecimiento de las 8 subáreas de oportunidad y un módulo adicional de transformación digital desarrollado bajo el marco de la Doble Titulación con ENAE Business School.
description: Digital and traditional marketing proposal for Típicos D Colombia, a small company with a B2B2C business model that manufactures and markets achiras, a typical Colombian food product. The proposal aims to increase engagement, brand positioning, and its market share by at least 0.7% in 2023, through the development of strategies focused on improving the eight marketing sub-areas with greater potential within the company, the definition of communication channels and tools to be used for the two target audiences; all framed in the long-term objective of the company which corresponds to obtaining the Company B seal. 8 strategies are proposed to strengthen the 8 sub-areas of opportunity and an additional module of digital transformation developed under the framework of the Double Degree with ENAE Business School.
Performance Ratio of PV Plant - State of the Art and Possible Improvement
Creators: name: Mansone, S.
name: Bonemazzi, F.
name: Cascone, I.
name: Incalza, A.
name: Guardo, A.
name: Fatica, A.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2197-2203
description: Performance Ratio (PR) is a very important parameter to proper define the goodness of a PV plant. The
PR is internationally defined in IEC 61724 but it is also treated in several local standards, furthermore several
calculation methods have been issued worldwide. PR includes the overall effect of technical and environmental
aspects of the plant; in order to ensure a coherent use of the PR it is recommended to adopt the proper methodology
for each purpose. If correctly computed, the PR will provide useful information for the overall functionality of the
plant. Once all the inner physic phenomena and the external fault causes of the plant have been taken into account,
the PR could become an important and fully comprehensive diagnostic parameter. This study is aimed to make a
survey on the PR calculation methods currently defined on the standards and on the literature (best practices,
technical documents, others) and to investigate on possible improvements in the PR algorithms. In addition, a new
calculation method taking into account the temperature correction (starting from 25 °C), the module degradation and
the exogenous causes that can affect the energy production is also proposed.
Enhancement of the spin Hall voltage in a reverse-biased planar pn-junction
Creators: name: Nádvorník, L.
name: Olejník, K.
name: Němec, P.
name: Novák, V.
name: Janda, T.
name: Wunderlich, J.
name: Trojánek, F.
name: Jungwirth, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report an experimental demonstration of a local amplification of the spin Hall voltage using an expanding depletion zone at a pn-junction in GaAs/AlGaAs Hall-bar microdevices. It is demonstrated that the depletion zone can be spatially expanded by applying reverse bias by at least 10~$μ$m at low temperature. In the depleted regime, the spin Hall signals reached more than one order of magnitude higher values than in the normal regime at the same electrical current flowing through the micro-device. It is shown that the pn-bias has two distinct effects on the detected spin Hall signal. It controls the local drift field at the Hall cross which is highly non-linear in the pn-bias due to the shift of the depletion front. Simultaneously, it produces a change in the spin-transport parameters due to the non-linear change in the carrier density at the Hall cross with the pn-bias.
MEGASTAR: The MEGARA-GTC stellar spectral library
Creators: name: Mollá, M.
name: García Vargas, M.L.
name: Millán Irigoyen, I.
name: Cardiel, N.
name: Carrasco Licea, E.
name: Gil de Paz, A.
name: Berlanas, S.R.
name: Gómez-Álvarez, P.
Publisher: name: Zenodo
Year: 2022

description: We are observing a large sample of stars with MEGARA in GTC through a filler-type OpenTime program obtained up to now in 7 semesters. We summarize our advances done with MEGASTAR, the stellar spectral library that we are observing with GTC-MEGARA at R=20000 in two setups HR-R around Hb and HR-I around CaT. We described our project in García Vargas et al. (2020, MNRAS, 493, 871).We published our first data release in Carrasco et al. (2021, MNRAS, 501, 3568). In our third work about MEGASTAR, (Mollá et al. 2022, MNRAS, submitted) , we have determined the stellar parameters (effective temperature, surface gravity and metallicity) of a subsample of the DR1 stars with spectral types later than B2.Next works will be devoted to the second data release and to the analysis of the hot stars
Pteropus rufus Tiedemann 1808
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus rufus

description: Pteropus rufus Tiedemann, 1808. Zool., 1808:535. TYPE LOCALITY: Madagascar. DISTRIBUTION: Madagascar. STATUS: CITES - Appendix II. SYNONYMS: edwardsi, phaiops, princeps. COMMENTS: See Bergmans (1990). Commonly cited from "E. Geoffroy, 1803. Cat. Mamm. Mus. Nat. Hist. Nat. Paris, p. 47.", but this work was never published, see Appendix I.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 150, DOI: 10.5281/zenodo.7353060
description: {"references": ["Bergmans, W. 1990. Taxonomy and biogeography of African fruit bats (Mammalia: Megachiroptera). 3. The genera Scotonycteris Matschie, 1894, Casinycteris Thomas, 1910, Pteropus Brisson, 1762, and Eidolon Rafinesque, 1815. Beaufortia, 40 (7): 111 - 177.", "Geoffroy Saint-Hilaire, E. 1803. Catalogue des mammiferes du Museum National d'Histoire Naturelle. Museum National d'Histoire Naturelle, Paris, 272 pp."]}
Energy Yield Estimation of a 75MW PV Plant in Tafilalt (Morocco). Example of Usefulness of SISIFO Tool for Contractual Frameworks
Creators: name: Carrillo, J.M.
name: Munoz, J.
name: Bouzzan, E.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2193-2196
description: This paper describes the technical characteristics and simulates the performance of a 75MW PV plant
that is planned by the Moroccan Office National d’Electrecité et de l’Eau potable (ONEE) at Tafilalt, in the South of
Morocco. Simulations have been performed using SISIFO, and online and free-software simulator of PV systems.
Hydration at highly crowded interfaces
Creators: name: Penschke, Christopher
name: Thomas, John
name: Bertram, Cord
name: Michaelides, Angelos
name: Morgenstern, Karina
name: Saalfrank, Peter
name: Bovensiepen, Uwe
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Understanding the molecular and electronic structure of electrolytes at interfaces requires an analysis of the interactions between the electrode surface, the ions, and the solvent environment on equal footing. Here, we tackle this challenge by exploring the initial stages of Cs+ hydration on a Cu(111) surface by combining experiment and theory. Remarkably, we observe "inside out" solvation of Cs ions, i.e, their preferential location at the perimeter of the water clusters on the metal surface. In addition, water-Cs complexes containing multiple Cs+ ions are observed to form at these surfaces. Established models based on maximum ion-water coordination and the double layer notion cannot account for this situation and the complex interplay of microscopic interactions is the key to a fundamental understanding.
description: 5 pages, 3 figures
Mineralogical and morphological characterization and optimization of extractive techniques applied to minor bodies of the Solar System
Creators: name: Rodríguez Rodríguez, Javier
name: Díez Alonso, Enrique
name: Fernández Menéndez, Susana
name: Iglesias Álvarez, Santiago
name: Gracia Rodríguez, Javier
name: de Cos Juez, Francisco Javier
Publisher: name: Zenodo
Year: 2022
Subjects: Minor planets, asteroids: general, Minor planets, asteroids: individual: (4660) Nereus

description: In this work we review what are the demands related to critical elements in technological areas in the near future, being its extraction from asteroids the main target. We study how frequently those critical elements appear in different asteroid taxonomies by comparing the asteroid taxonomies with meteor remains on Earth, concluding that the best candidates to be mined in a future mission would be M/X type asteroids. We have selected several NEA’s and asteroids from the Main Belt belonging to this taxonomy as optimal candidates to be mined, studying their composition by spectroscopy. We also analyse their available dense and sparse photometry in databases in order to obtain their physical parameters (pole orientation, rotation period, size) and also apply the light curve inversion method, complemented with radar images, if available, to estimate their shape, which is fundamental to determine which mining method is the optimal in each particular asteroid. In this work we have focused on (4660) Nereus.
Observation of the Efimovian Expansion in Scale Invariant Fermi Gases
Creators: name: Deng, Shujin
name: Shi, Zhe-Yu
name: Diao, Pengpeng
name: Yu, Qianli
name: Zhai, Hui
name: Qi, Ran
name: Wu, Haibin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Scale invariance emerges and plays an important role in strongly correlated many-body systems such as critical regimes nearby phase transitions and the unitary Fermi gases. Discrete scaling symmetry also manifests itself in quantum few-body systems such as the Efimov effect. Here we report both theoretical predication and experimental observation of a novel type expansion dynamics for scale invariant quantum gases. When the frequency of the harmonic trap holding the gas decreases continuously as the inverse of time $t$, surprisingly, the expansion of cloud size exhibits a sequence of plateaus. Remarkably, the locations of these plateaus obey a discrete geometric scaling law with a controllable scale factor and the entire expansion dynamics is governed by a log-periodic function. This striking expansion of quantum Fermi gases shares similar scaling laws and same mathematical description as the Efimov effect. Our work demonstrates the first expansion dynamics of a quantum many-body system with the temporal discrete scaling symmetry, which reveals the underlying spatial continuous scaling symmetry of the many-body system.
description: 5 pages, 5 figures, with 6 pages supplemental material
Case Study of Outlier Event of Solar Irradiance Forecasts from a Numerical Prediction Model
Creators: name: Ohtake, H.
name: Takashima, T.
name: Oozeki, T.
name: Fonseca Jr., J.G.S.
name: Yamada, Y.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2157-2160
description: A significant number of photovoltaic (PV) power systems have been installed in Japan since the introduction
of a feed-in-tariff program in 2012. PV power generations are directly affected by solar irradiance
and have also large variations in spatial and time scales. For stability control of power grids
with system operation in energy management systems (EMS), one day ahead forecasts of solar irradiance
with numerical weather prediction model (NWP) are important. However, solar irradiance
forecasts by the NWP have often yield errors. In particular, large forecast errors of PV power or solar
irradiance forecasts are undesirable in the operation of EMS.
In this study, we investigate, as a case study, outliers events of solar irradiance forecasts (i.e, cases
when relatively large forecast errors occurred). The forecasts are based on the NWP from the Japan
Meteorological Agency, and they were performed for a spatially large area (the operation area of a
power utility) around Tokyo in Japan. From validation results, we found that, in some cases of one day
ahead forecasts, it was difficult to forecast cold front locations with moving synoptic-scale low pressure
zone. However, forecasts in early morning (06 LST initialization time in Japan) were able to detect the
location of cold front and/or cloud fields associated with low pressure zones. It is seems that the improvement
of solar irradiance happened due to data assimilation using latest observation data. These
results indicated that updated forecast data of solar irradiance proved to be useful to comprehend
large errors in one day ahead forecasts.
Compensation of PV Generator Output Power Fluctuations with Energy Storage Systems
Creators: name: Schnabel, J.
name: Valkealahti, S.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2185-2189
description: Photovoltaic generators (PVG) suffer from short-term intermittency of output power. With significant
penetration of PV this intermittency can lead to power systems instability and power quality problems. Energy
storage systems (ESS) can be used to compensate PV power fluctuations in order to mitigate these problems. In this
paper ESS behavior, control and sizing have been investigated to mitigate instabilities caused by PV power plants
operating in Northern European conditions through simulations that utilize measurements from the Tampere
University of Technology (TUT) Solar PV power station research plant. Continuous synchronized measurements
have been recorded with the irradiance and PV module temperature sensor network with a 10 Hz sampling frequency
since June 2011. The ESS capacity and power requirements are derived from the simulations for different PVG sizes
and PV power ramp rate (RR) limits. The results show how both capacity and power requirements decrease as
functions of the RR limit and the PVG size. Also, interesting differences have been noticed compared to similar
studies done in Southern European climate, which indicate that the operational climate of the PVG can have an effect
on ESS sizing.
Energy Performance Results of 240 MW x Year of Spanish Large-Scale PV Plants
Creators: name: Moreton Villagrá, R.
name: Lorenzo, E.
name: Martinez-Moreno, F.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2179-2184
description: In this paper, the performance of several large-scale Spanish photovoltaic plants is presented. 20
installations, totalling more than 90 MW, are analysed for a period of up to 4 years. We suggest a procedure to assure
the consistency of the data coming from the field and a method of calculating the energy availability rate of the
installations, both of them in a way that is independent of the operator of the plant. The operational results are final
yields of more than 1,500 kWh/kW for static installations and more than 2,100 kWh/kW for a 2-axis tracking
configuration; average performance ratios of 0.8 and energy availabilities of more than 99.5%, with no significant
differences between static and tracking systems. Because of the large size and wide location distribution of this
sample, we consider these results representative of the performance of large scale PV plants in Spain.
SISIFO: the Open-Source Simulation Tool of PV Systems Developed in PVCROPS
Creators: name: Carrillo, J.M.
name: Munoz, J.
name: Makibar, A.
name: Luna, A.
name: Narvarte, L.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2190-2192
description: This paper presents a description of an open-source simulation tool (features, models and calculation
procedures) that has been developed under the support of the European project called PVCROPS. The main
advantage of this tool is that it uses as input just parameters guaranteed by the manufacturers of the different
components of a PV plant. This way, it can be used in contractual frameworks to establish the expected energy yield
of a PV plant, to check the actual performance of the PV plant with quality contractual procedures linked to SISIFO,
and to assign responsibilities in the case of underperformance. The tool provides, among other simulation results, the
energy yield, the analysis and breakdown of energy losses, and financial analysis. Furthermore the software can
generate a technical report with the results obtained in the simulation.
Site Assesment for a PV System in Colombia
Creators: name: Rojas, K.
name: Sepulveda, S.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2122-2124
description: Photovoltaic solar energy has a great potential of becoming a major energy source for developing
countries located near the equator. Cucuta is a city located at the north-east of Colombia (7°54’N 72°29’W) and PV
Systems are almost negligible in this area. Scientific and technical data analysis is required before implementing
medium or large PV systems. A site assessment is performed to evaluate the best place to install a 1kW grid-tied PV
System within Francisco de Paula Santander University. We used the Solar Pathfinder, PVSyst software, anisotropic
models and other tools to evaluate four aspects: shading losses, distance to the monitoring room, irradiance and ease
of access. We established relative weights for each aspect and made the decision based on the highest score.
Automated Thermal Imaging for Fault Detection on PV-Systems
Creators: name: Rasch, R.
name: Behrens, G.
name: Hamelmann, F.U.
name: Hantelmann, S.
name: Dreimann, R.
name: Weicht, J.A.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Operation of PV Systems and Plants

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2147-2149
description: Focus of this work is the advantage of collecting monitoring data from photovoltaic (PV)-power
systems with modern thermal imaging technology and intelligent image analysis algorithms. Recognition and
prediction of faults in large PV-systems are important for effective economic operation of PV-plants. Contemporary
methods like electroluminescence need to disassemble PV-modules in the field. Our work will show that faults like
broken cells can be detected automatically in working PV-modules by thermal imaging. Furthermore we show a
method to extract data from images to identify these errors with image processing.