cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Consultoría digital Bicielectron 2022
Creators: name: Huertas Beltran, Cristian David
name: Triana Mahecha, Lesly Tatiana
Publisher: name: Universidad Externado de Colombia
Year: 2022
Subjects: subject: Diseño de páginas web
subject: Internet
subject: Comercio
subject: Consultoría
subject: Digital
subject: CRM
subject: Bicielectron

description: En este trabajo acompañamos a la empresa BICIELECTRON a identificar oportunidades de mejora en el ámbito digital que le permitiese ejercer mejores prácticas y que tuviesen un impacto positivo en el negocio. Para lograr llevar a cabo el objetivo se realizó un diagnóstico en varios aspectos como la gobernanza de datos, prototipo de cliente, gestión comercial, uso de herramientas digitales, necesidades de los prospectos, entre otros. Al final se identifica que las principales necesidades de la compañía radican en una falta de control real a los esfuerzos online y offline durante la preventa, venta y posventa. Dado lo anterior, se procede a buscar un CRM enfocado en redes sociales, a un precio asequible y que permita crear bots para filtrar dudas comunes. Por último, se logra la implementación del CRM durante un periodo de prueba de 15 días, se entrega un manual de gobernanza de datos, unos consejos para optimizar el SEO, dos fichas técnicas de buyer persona y su respectivo Journey map.
description: In this work we accompany the company BICIELECTRON to identify opportunities for improvement in the digital field that would allow it to exercise best practices and have a positive impact on the business. To achieve the objective, a diagnosis was made in various aspects such as data governance, client prototype, commercial management, use of digital tools, prospects' needs, among others. In the end, it is identified that the main needs of the company lie in a lack of real control of online and offline efforts during pre-sale, sale and post-sale. Given the above, we proceed to look for a CRM focused on social networks, at an affordable price and that allows the creation of bots to filter common doubts.
Flexocoupling impact on the size effects of piezo- response and conductance in mixed-type ferroelectrics-semiconductors under applied pressure
Creators: name: Morozovska, Anna N.
name: Eliseev, Eugene A.
name: Genenko, Yuri A.
name: Vorotiahin, Ivan S.
name: Silibin, Maxim V.
name: Cao, Ye
name: Kim, Yunseok
name: Glinchuk, Maya D.
name: Kalinin, Sergei V.
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: Flexocoupling impact on the size effects of the spontaneous polarization, effective piezo-response, elastic strain and compliance, carrier concentration and piezo-conductance have been calculated in thin films of ferroelectric semiconductors with mixed-type conductivity under applied pressure. Analysis of the self-consistent calculation results revealed that the thickness dependences of aforementioned physical quantities, calculated at zero and nonzero flexoelectric couplings, are very similar under zero applied pressure, but become strongly different under the application of external pressure pext. At that the differences become noticeably stronger for the film surface under compression than under tension. The impact of the Vegard mechanism on the size effects is weaker in comparison with flexocoupling except for the thickness dependence of the piezo-conductance. Without flexoelectric coupling the studied physical quantities manifest conventional peculiarities that are characteristic of the size-induced phase transitions. Namely, when the film thickness h approaches the critical thickness hcr the transition to paraelectric phase occurs. The combined effect of flexoelectric coupling and external pressure induces polarizations at the film surfaces, which cause the electric built-in field that destroys the thickness-induced phase transition to paraelectric phase at h= hcr and induces the electret-like state with irreversible spontaneous polarization at h
description: 26 pages, 4 figures, 4 Appendices
Gamification in sozialen Medien – Auswirkungen gamifizierter Inhalte auf die Markenwahrnehmung bei TikTok
Creators: name: Burmann, Christoph
name: Germroth, Gloria
Publisher: name: Universität Bremen
Year: 2022
Subjects: subject: Gamification
subject: Markenwahrnehmung
subject: soziale Medien
subject: 330

description: Gamification in sozialen Medien – Auswirkungen gamifizierter Inhalte auf die Markenwahrnehmung bei TikTok
On an application of multidimensional arrays
Creators: name: Yordzhev, Krasimir
Publisher: name: arXiv
Year: 2016
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 68P05, 05B20

description: This article discusses some difficulties in the implementation of combinatorial algorithms associated with the choice of all elements with certain properties among the elements of a set with great cardinality.The problem has been resolved by using multidimensional arrays. Illustration of the method is a solution of the problem of obtaining one representative from each equivalence class with respect to the described in the article equivalence relation in the set of all $m\sim n$ binary matrices. This equivalence relation has an application in the mathematical modeling in the textile industry.
Reliability and Durability Comparison of Different Backsheet for PV Modules
Creators: name: Gong, H.
name: Wang, G.
name: Gao, M.
name: Zheng, L.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2066-2072
description: Backsheet is the first barrier to ensure the 25+ reliability and durability of PV modules. To reduce cost, backsheets with different composition and construction have been developed and introduced to PV modules. For the PV module manufacturers, it is a challenge to select a backsheet with low cost that can maintain the current high reliability and durability performance.
This work compared the properties of the several backsheets with different composition and construction. To distinguish the different backsheet properties, intensive and long-term weathering tests were performed. The results showed that the backsheet properties had a significant influence on the durability of the material. The ability of the backsheet to withstand extended high humidity exposure is mainly affected by the hydrolysis performance of core layer PET material, and was not affected by the outer layer material. Some backsheets, like PVDF/PET/PVDF and PVF/PET/PE that use a modified PE as inner layer, also showed a high ability to withstand extended UV exposure. PET-based backsheet showed weak withstand UV performance. The PA-based backsheets demonstrated the worst weatherability performance.
Data assimilation for massive autonomous systems based on second-order adjoint method
Creators: name: Ito, Shin-ichi
name: Nagao, Hiromichi
name: Yamanaka, Akinori
name: Tsukada, Yuhki
name: Koyama, Toshiyuki
name: Kano, Masayuki
name: Inoue, Junya
Publisher: name: arXiv
Year: 2016
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Data assimilation (DA) is a fundamental computational technique that integrates numerical simulation models and observation data on the basis of Bayesian statistics. Originally developed for meteorology, especially weather forecasting, DA is now an accepted technique in various scientific fields. One key issue that remains controversial is the implementation of DA in massive simulation models under limited computation time and resources. In this paper, we propose an adjoint-based DA method for massive autonomous models that produces optimum estimates and their uncertainties within practical computation time and resource constraints. The uncertainties are given as several diagonal components of an inverse Hessian matrix, which is the covariance matrix of a normal distribution that approximates the target posterior probability density function in the neighborhood of the optimum. Conventional algorithms for deriving the inverse Hessian matrix require $O(CN^2+N^3)$ computations and $O(N^2)$ memory, where $N$ is the number of degrees of freedom of a given autonomous system and $C$ is the number of computations needed to simulate time series of suitable length. The proposed method using a second-order adjoint method allows us to directly evaluate the diagonal components of the inverse Hessian matrix without computing all of its components. This drastically reduces the number of computations to $O(C)$ and the amount of memory to $O(N)$ for each diagonal component. The proposed method is validated through numerical tests using a massive two-dimensional Kobayashi's phase-field model. We confirm that the proposed method correctly reproduces the parameter and initial state assumed in advance, and successfully evaluates the uncertainty of the parameter. Such information regarding uncertainty is valuable, as it can be used to optimize the design of experiments.
Statistics of Plastic Events in Post-Yield Strain-Controlled Amorphous Solids
Creators: name: Dubey, Awadhesh K.
name: Hentschel, H. George E.
name: Procaccia, Itamar
name: Singh, Murari
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Amorphous solids yield in strain-controlled protocols at a critical value of the strain. For larger strains the stress and energy display a generic complex serrated signal with elastic segments punctuated by sharp energy and stress plastic drops having a wide range of magnitudes. Here we provide a theory of the scaling properties of such serrated signals taking into account the system-size dependence. We show that the statistics are not homogeneous - they separate sharply to a regime of `small' and `large' drops, each endowed with its own scaling properties. A scaling theory is first derived solely by data analysis, showing a somewhat complex picture. But after considering the physical interpretation one discovers that the scaling behavior and the scaling exponents are in fact very simple and universal.
description: 7 pages, 11 figures
Reliability and Durability Impact of High UV Transmission EVA for PV Modules
Creators: name: Gong, H.
name: Wang, G.
name: Zheng, L.
name: Gao, M.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2061-2065
description: Recently, newly developed high UV light transmission EVA has been widely introduced in PV modules. It has been proven that this will increase the PV module power due to the better short wavelength response of solar cell, which will further reduce the cost per Watt of the PV module. However, the increased UV light irradiating the backsheet will cause increased backsheet yellowing and degradation. Hence most PV module manufacturers use a combined EVA, with high UV transmission EVA as front encapsulant and conventional UV cut-off EVA as the rear encapsulant.
This work investigates the reliability and durability of high UV transmission EVA in PV modules. If conventional UV cut-off EVA is used as both front and rear encapsulants, the UV transmission rate and yellowness of the EVA increases after UV exposure, indicating degradation or aging of the EVA. The high UV EVA light transmission and clarity remained constant after 300kWh/m2 UV exposure. The Yellowness index of UV sensitive backsheet showed that the high UV EVA caused the backsheet to degrade, while the conventional EVA and a combined EVA, with high UV EVA as the front and conventional EVA as the rear, did not produce any yellowing of the backsheet. This implies that the best combination is the use of the combined EVA to protect the sensitive backsheet. Suntech PV modules encapsulated with combined EVA have been subjected to UV extended testing up to 330kWh/m2 UV exposure, with lower than 2.1% output power loss.
Plan padrinos empresa ASENEG S.A.S.
Creators: name: Robayo Avila, Saira Camila
Publisher: name: Universidad Externado de Colombia
Year: 2022
Subjects: subject: Administración de mercadeo
subject: Comunicaciones
subject: Servicios
subject: Aseneg
subject: Outsourcing
subject: Talento humano
subject: Mercadeo

description: Aseneg es una compañía colombiana encargada de prestar servicios de outsourcing de talento humano contribuyendo al éxito de sus clientes suministrando personal altamente calificado y capacitado que se adapta a los objetivos corporativos de cada negocio; lleva más de 30 años en el mercado nacional y planea expandirse en el largo plazo. Se encuentra en un mercado altamente competitivo, por lo que dentro de este trabajo se desarrolla una amplia estrategia de mercadeo en donde se plantean varios métodos que le ayudaran a posicionarse como una marca reconocida específicamente en el mercado de las empresas de outsourcing de personal en el país; convirtiéndose en un aliado estratégico para sus clientes.
description: Aseneg is a Colombian company in charge of providing human talent outsourcing services, contributing to the success of its clients by supplying highly qualified and trained personnel that adapts to the corporate objectives of each business; It has been in the national market for more than 30 years and plans to expand in the long term. It is in a highly competitive market, so within this work a broad marketing strategy is developed where several methods are proposed that will help it position itself as a recognized brand specifically in the market of personnel outsourcing companies in the country; becoming a strategic ally for its clients.
Gestaltung von Shoppingerlebnissen im stationären Einzelhandel mit digitalen Technologien – dargestellt am Beispiel der Luxusmodebranche
Creators: name: Burmann, Christoph
name: Mahn, Luisa
Publisher: name: Universität Bremen
Year: 2020
Subjects: subject: Shoppingerlebniss
subject: digitalen Technologien
subject: Luxusmodebranche
subject: 330

description: Gestaltung von Shoppingerlebnissen im stationären Einzelhandel mit digitalen Technologien – dargestellt am Beispiel der Luxusmodebranche
Beyond the bulge-halo conspiracy? Density profiles of Early-type galaxies from extended-source strong lensing
Creators: name: Etherington, Amy
name: Nightingale, James W.
name: Massey, Richard
name: Robertson, Andrew
name: Cao, XiaoYue
name: Amvrosiadis, Aristeidis
name: Cole, Shaun
name: Frenk, Carlos S.
name: He, Qiuhan
name: Lagattuta, David J.
name: Lange, Samuel
name: Li, Ran
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Observations suggest that the dark matter and stars in early-type galaxies `conspire' to produce a surprisingly simple distribution of total mass, $ρ(r)\proptoρ^{-γ}$, with $γ\approx2$. We measure the distribution of mass in 48 early-type galaxies that gravitationally lens a resolved background source. By fitting the source light in every pixel of images from the Hubble Space Telescope, we find a mean $\langleγ\rangle=2.075_{-0.024}^{+0.023}$ with intrinsic scatter between galaxies of $σ_γ=0.172^{+0.022}_{-0.032}$ for the overall sample. This is consistent with, and has similar precision to traditional techniques that employ spectroscopic observations to supplement lensing with mass estimates from stellar dynamics. Comparing measurements of $γ$ for individual lenses using both techniques, we find a statistically insignificant correlation of $-0.150^{+0.223}_{-0.217}$ between the two, indicating a lack of statistical power or deviations from a power-law density in certain lenses. At fixed surface mass density, we measure a redshift dependence, $\partial\langleγ\rangle/\partial z=0.345^{+0.322}_{-0.296}$, that is consistent with traditional techniques for the same sample of SLACS and GALLERY lenses. Interestingly, the consistency breaks down when we measure the dependence of $γ$ on the surface mass density of a lens galaxy. We argue that this is tentative evidence for an inflection point in the total-mass density profile at a few times the galaxy effective radius -- breaking the conspiracy.
description: 14 pages, 11 figures, 5 tables, submitted to MNRAS
PV Power Forecast Using a Parametric Model
Creators: name: Muñoz, M.
name: De La Parra, I.
name: García, M.
name: Marroyo, 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; 2086-2090
description: Nowadays, accurate AC power output forecast of PV plants can play a significant role for both the
system operators and PV plant owners. The first group has to program the dispatch of the electric system and the
second one needs to plan their energy commercialization schedule up front. Therefore, after analyzing the existing
commercial services of PV production forecast, it has been identified the potential to improve the models used to
calculate the AC power output from irradiance and ambient temperature forecasts. Then, in this paper, a parametric
model is proposed in order to improve the forecast performance. This model provides the AC power at the output of
the PV plan using as input variables predicted ambient temperature and predicted global horizontal irradiance, both
obtained from open sources. It has been evaluated and validated using historical production data of a fixed generator
(2,24kWp) and a large PV power plant (45MWp) and historical forecast data from the open source Meteogalicia In
addition, a toolbox to implement this parametric methodology has been built upon the Matlab environment. The
toolbox has been developed to provide the PV plant production one day in advance.
Italy’s National Recovery and Resilient Plan: Will it Narrow the North-South Productivity Gap?
Creators: name: Mauro, Luciano
name: Pigliaru, Francesco
Publisher: name: Unknown
Year: 2023
Subjects: subject: Political Economy
subject: Public Economics
subject: social capital
subject: regional convergence
subject: economic growth
subject: decentralization

description: We develop an endogenous growth model to simulate the long-term impact of Italy’s National Recovery and Resilience Plan (NRRP) on the persistent North-South productivity gap. Our model underscores public investment as a catalyst for sustained economic growth and highlights the reliance of local government quality on the surrounding social capital. In regions with low social capital, local investment management diminishes efficiency due to prevalent misappropriation. In contrast, centralized management enhances the effectiveness of public action in these situations. The NRRP’s overall effect therefore relies on the government level to which investment management is assigned. Our quantitative exercises show that compared to centralization, decentralization weakens the NRRP’s impact on the relative position of the South. However, even under our best scenario — centralized management — the NRRP only slightly reduces the North-South productivity gap from 75% to 76.4%. Finally, our research highlights the pivotal role of a reform aimed at maintaining central control over Southern public investments well beyond 2026, when the NRRP’s actions and governance are due to stop. This type of reform can potentially yield more substantial, positive, and lasting impacts on the region.
Advanced PV Modules Inspection Using Multirotor UAV
Creators: name: Tyutyundzhiev, N.
name: Lovchinov, K.
name: Martinez-Moreno, F.
name: Leloux, J.
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; 2077-2081
description: Large-scale PV fields are a complicated target for monitoring and performance
evaluation. In this paper, field experience with multirotor UAV has been reported. A X-frame
quadcopter equipped with various VIS and IR cameras is used to detect defects responsible for
performance degradation. Usually in laboratory environment, hi-res VIS photos, EL photos and far-
IR photos of single module are used for diagnostic purposes. However, on-field PV plant testing
procedures need faster methods for batch processing. Our investigations confirm that new robotics
and avionics equipment for close-range flights over PV modules combined with cameras can reveal
hidden problems of materials quality and device reliability. Various new tasks, as high resolution
aerial photography, 3D photogrammetry, 3D field and building reconstruction can be involved as
testing methods for performance optimization of photovoltaic installations.
Advanced Testing of PV Plants Using Portable SCADA Tool
Creators: name: Tyutyundzhiev, N.
name: Petrov, M.
name: Martinez-Moreno, F.
name: Leloux, J.
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; 2082-2085
description: The Performance ratio (PR) describes the technical quality of PV installation. On yearly basis, it is a good
performance indicator for monitoring and comparisons of PV plants at different locations, but for shorter testing periods
or commissioning, weekly -based or hourly-based indicators are preferable. We have developed a testing tool based on
small SCADA which allows on-field measurements. The main advantages are flexibility and speed of testing. Thanks to
the recent developments of “smart” sensors, the measuring tool can be adapted and reconfigured in accordance with the
scale and type of equipment under test. Sensor data are collected and processed on site and performance indicators are
extracted nearly in real-time. This report describes the methodology and practical experience in two application cases
implemented in the frame of PV CROPS project.
An analysis of feature relevance in the classification of astronomical transients with machine learning methods
Creators: name: D'Isanto, Antonio
name: Cavuoti, Stefano
name: Brescia, Massimo
name: Donalek, Ciro
name: Longo, Giuseppe
name: Riccio, Giuseppe
name: Djorgovski, Stanislav G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The exploitation of present and future synoptic (multi-band and multi-epoch) surveys requires an extensive use of automatic methods for data processing and data interpretation. In this work, using data extracted from the Catalina Real Time Transient Survey (CRTS), we investigate the classification performance of some well tested methods: Random Forest, MLPQNA (Multi Layer Perceptron with Quasi Newton Algorithm) and K-Nearest Neighbors, paying special attention to the feature selection phase. In order to do so, several classification experiments were performed. Namely: identification of cataclysmic variables, separation between galactic and extra-galactic objects and identification of supernovae.
description: Accepted by MNRAS, 11 figures, 18 pages
Characteristics of the Small-Scale Aquaculture Sector in Malawi
Creators: name: Munthali, Maggie G.
name: Chilora, Lemekezani
name: Nyirenda, Zephania
name: Saonga, Dinah
name: Wineman, Ayala
name: Muyanga, Milu
Publisher: name: Unknown
Year: 2023
Subjects: subject: Agricultural and Food Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: International Development
subject: Aquaculture
subject: Malawi
subject: Food security
subject: Income generation
subject: Smallholder livelihoods

description: Key Messages • Results from the MwAPATA Aquaculture Survey show that 87% of small-scale fish farms in Malawi are individually owned, and most fish farming households are male headed (86%). • Most farms (95%) use low-technology earthen ponds, which are susceptible to floods, erosion, and natural predators. • Nearly all farms (99.8%) are stocked with mixed-sex fingerlings, which are associated with uncontrolled reproduction, low survival rates, overcrowding, and stunted growth. • It is encouraging that many farms apply organic fertilizers (87%) and inorganic fertilizers (49.4%). However, small-scale fish farming in Malawi is characterized by limited usage of other high-quality inputs, such as commercial feed (floating feed), which constrains the productivity of the sector. • Nevertheless, small-scale aquaculture has potential to improve farmersʼ livelihoods and welfare through economic and dietary diversification. • Survey results point to a need to disseminate modern fish farming practices and technologies; promote the active participation of youths and women; organize fish farmers into groups and strengthen existing farmersʼ associations; and incentivize private sector investment, particularly in the production of floating fish feed.
Pteropus seychellensis Milne-Edwards 1877
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus seychellensis

description: Pteropus seychellensis Milne-Edwards, 1877. Bull. Sci. Soc. Philom. Paris, ser. 7, 2:221. TYPE LOCALITY: Seychelle Isis, Mahe Isl. DISTRIBUTION: Seychelle Isis, Aldabra Isl, Comoro Isis, Mafia Isl (off Tanzania). STATUS: CITES - Appendix II. SYNONYMS: comorensis. COMMENTS: Includes comorensis; see Hill (19716:574), who also included aldabrensis; but see Bergmans (1990) who kept aldabrensis as a separate species.
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 151, 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."]}
Hot and heavy dark matter from a weak scale phase transition
Creators: name: Baldes, Iason
name: Gouttenoire, Yann
name: Sala, Filippo
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We point out that dark matter which is produced non-adiabatically in a phase transition (PT) with fast bubble walls receives a boost in velocity which leads to long free-streaming lengths. We find that this could be observed via the suppressed matter power spectrum for dark matter masses around $10^8 - 10^9$ GeV and energy scales of the PT around $10^{2} - 10^3$ GeV. The PT should take place at the border of the supercooled regime, i.e. approximately when the Universe becomes vacuum dominated. This work offers novel physics goals for galaxy surveys, Lyman-$α$, stellar stream, lensing, and 21-cm observations, and connects these to the gravitational waves from such phase transitions, and more speculatively to possible telescope signals of heavy dark matter decay.
description: 9 pages plus appendices. V2: Clarifications and references added, accepted for publication in SciPost Physics
Ray-Tracing Analysis of an Optical Filter for Photovoltaic/Thermal Module
Creators: name: Al-Shohani, W.
name: Algareu, A.
name: Al-Dadah, R.
name: Mahmoud, S.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2012-2016
description: This paper presents a numerical analysis of using a water layer as an optical solar spectrum splitter for
concentrated and non-concentrated Photovoltaic/Thermal systems (CPVT and PVT) based on ray-tracing technique using
OPTISWORKS software. In the proposed approach, the water is to be circulated above the PV module to extract the heat
from PV module and to act as a spectrum splitter to the solar radiation. This effect of different water layer thicknesses
(2.5 – 30 mm) on the radiation received by the PV cell and the radiation absorbed by the water layer was investigated.
Results showed that the optical filter has low transmittance of UV radiation and hence good absorption efficiency (over
99%). The filter transmittance of IR radiation decreased with the increase in water layer thickness to reach 50%. Also, for
VIS radiation, as the water layer increases, the transmittance of VIS radiation decreases from 92% with water layer of 2.5
mm to 50% with water layer of 30 mm thickness. Additionally, the overall radiation output of the optical filter is
presented showing optical efficiency of 74.5% but this radiation considers mainly of VIS lights beneficial to the PV.
Frequency downshift in a viscous fluid
Creators: name: Carter, J. D.
name: Govan, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: In this paper, we derive a viscous generalization of the Dysthe (1979) system from the weakly viscous generalization of the Euler equations introduced by Dias, Dyachenko, and Zakharov (2008). This "viscous Dysthe" system models the evolution of a weakly viscous, nearly monochromatic wave train on deep water. It contains a term which provides a mechanism for frequency downshifting in the absence of wind and wave breaking. The equation does not preserve the spectral mean. Numerical simulations demonstrate that the spectral mean typically decreases and that the spectral peak decreases for certain initial conditions. The linear stability analysis of the plane-wave solutions of the viscous Dysthe system demonstrates that waves with wave numbers closer to zero decay more slowly than waves with wave numbers further from zero. Comparisons between experimental data and numerical simulations of the NLS, dissipative NLS, Dysthe, and viscous Dysthe systems establish that the viscous Dysthe system accurately models data from experiments in which frequency downshifting was observed and experiments in which frequency downshift was not observed.
Novel Semi-Empirical Combined Electro-Thermal Model for Solar Modules
Creators: name: Plesz, B.
name: Kohári, Z.
name: Szabó, P.G.
name: Timár, A.
name: Bognár, G.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2022-2026
description: Although there is a wide variety of models for power prediction there are only few models that combine
electrical and thermal behaviour of modules and are capable of describing transient behaviour. This paper presents a
novel, semi empirical combined electro-thermal model for solar modules. Inputs of the model are the electrical and
thermal parameters of the module, and the data describing the ambient conditions.
The model consists of three main sub-models. For the calculation of the light conditions from the meteorological data
an adopted version of Bird’s clear Sky model is used. The irradiation value received from this sub-model is used in the
thermal and the electrical sub-models.
Both the electrical and the thermal sub-models represent new approaches in solar module modelling. The thermal model
is based on a thermal RC ladder, which has the advantage that the thermal resistances and heat capacities can be
determined directly by measurements (e. g. thermal transient measurement) or simulations of the solar module
structure. This approach is universal, and can be utilized practically for all types of solar modules. Due to the
incorporation of the heat capacitance into the thermal model the transitions between steady states can also be modelled.
The electrical model is a semi-empirical model that utilizes the Lambert W function based solution of the single-diode
model extended with series and shunt resistances. Since most solar cell types can be described with an exponential
curve, this model approach can be regarded as universal. The temperature and irradiance dependence is described by
temperature and irradiance dependent model coefficients (photocurrent, reverse saturation current, ideality factor, series
and shunt resistance). These temperature and irradiance dependent parameters can be derived from I-V curve
measurements obtained at different light intensities and temperatures under laboratory conditions or long-term outdoor
I-V curve measurements. The other new approach of the electric model is that it delivers I-V curves instead of only
giving an approximation for the maximum power or the efficiency, thus practically all important solar cell parameters
can be derived from the model for any desired power point.
Polarized Radiation Signals from Highly Magnetized Neutron Star Surfaces
Creators: name: Hu, Kun
name: Baring, Matthew G.
name: Barchas, Joseph A.
name: Younes, George
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The surfaces of neutron stars are likely sources of strongly polarized soft X rays due to the presence of strong magnetic fields. Scattering transport in the surface layers is critical to the determination of the emergent anisotropy of light intensity, and is strongly influenced by the complicated interplay between linear and circular polarization information. We have developed a magnetic Thomson scattering simulation to model the outer layers of fully-ionized atmospheres in such compact objects. Here we summarize emergent intensities and polarizations from extended atmospheric simulations, spanning considerable ranges of magnetic colatitudes. General relativistic propagation of light from the surface to infinity is fully included. The net polarization degrees are moderate and not very small when summing over a variety of field directions. These results provide an important foundation for observations of magnetars to be acquired by NASA's new IXPE X-ray polarimeter and future X-ray polarimetry missions.
description: 4 pages, 3 figures, accepted for publication in the proceedings of the IAU Symposium 363, Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution, eds. E. Troja & M. G. Baring
Hypothalamic POMC neuron-specific knockout of MC4R affects insulin sensitivity by regulating Kir2.1
Creators: name: Zhang, Haohao
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 310103
subject: Cell metabolism
classificationCode: 310104
subject: Cell neurochemistry
classificationCode: 310902
subject: Animal cell and molecular biology

description: 在我们目前的研究中，我们利用经典的cre / flox技术在POMC神经元中建立了MC4R的组成性缺失。我们的研究结果强调了MC4R在ARC区域内的关键作用，这是通过下丘脑Kir2.1抑制POMC神经元活性来实现的能量平衡和胰岛素敏感性。
Affabre Proyecto y Gestión S.A.S.
Creators: name: Lumbaque Melo, Wilmer Fabian
name: Valencia Camargo, Carlos Andres
Publisher: name: Universidad Externado de Colombia
Year: 2022
Subjects: subject: Actos jurídicos
subject: Desarrollo urbano
subject: Infraestructura - Economía
subject: Affabre
subject: Consultoría
subject: Estudios topográficos
subject: Cabida y linderos
subject: Proyectos urbanísticos

description: AFFABRE PROYECTO Y GESTIÓN S.A.S. empresa colombiana con una trayectoria de siete (7) años en el mercado, dedicada a la gestión, diseño, desarrollo e implementación de proyectos urbanísticos e inmobiliarios, desarrollando su actividad económica en el sector de desarrollo arquitectónico e infraestructura, a partir de la prestación de servicios complementarios en las diciplinas de asesoría jurídica, construcción de inmobiliario, diseño de proyectos, y asesorías en temas relacionados al sector, permitiéndoles ofrecer un servicio completo y de alta calidad en el mercado nacional. La misión principal de la compañía es ser una empresa comprometida a construir, ayudar a alcanzar los objetivos planteados por los clientes en el desarrollo de proyectos urbanísticos e inmobiliarios previo a la ejecución de cada proyecto, basados en proveer servicios de calidad y de forma directa donde es fundamental los aliados especializados con que cuenta la compañía que ayude alcanzar un crecimiento social, económico y velar por la conservación del medio ambiente.
description: AFFABRE PROJECT AND MANAGEMENT S.A.S. Colombian company with a track record of seven (7) years in the market, dedicated to the management, design, development and implementation of urban and real estate projects, developing its economic activity in the architectural and infrastructure development sector, based on the provision of Complementary services in the disciplines of legal advice, real estate construction, project design, and advice on issues related to the sector, allowing them to offer a complete and high-quality service in the national market. The main mission of the company is to be a company committed to building, helping to achieve the objectives set by clients in the development of urban and real estate projects prior to the execution of each project, based on providing quality services and directly where It is essential to have specialized allies that the company has to help achieve social and economic growth and ensure environmental conservation.
Interaktionen mit Social Media Influencern als Instrument zur Reduktion von Markenimagekonfusion
Creators: name: Burmann, Christoph
name: Hiddessen, Jana
Publisher: name: Universität Bremen
Year: 2019
Subjects: subject: Social Media Influencer
subject: Markenimagekonfusion
subject: 330

description: Interaktionen mit Social Media Influencern als Instrument zur Reduktion von Markenimagekonfusion
Elecciones presidenciales en Colombia 2022: análisis de la estrategia de comunicación política de los precandidatos Sergio Fajardo, Gustavo Petro y Óscar Iván Zuluaga en la red social Facebook
Creators: name: Moreno Rojas, Héctor Sebastián
Publisher: name: Universidad Externado de Colombia
Year: 2022
Subjects: subject: Comunicación en política
subject: Propaganda
subject: Telecomunicaciones
subject: Personalización de la política
subject: Interacciones
subject: Agenda setting
subject: Elecciones presidenciales
subject: Comunicación digital

description: Esta investigación analiza las estrategias de comunicación política digital en la red social Facebook, de los precandidatos a la presidencia de la República de Colombia Óscar Iván Zuluaga, Sergio Fajardo y Gustavo Petro, en el marco de las elecciones presidenciales de 2022. Este análisis de las publicaciones en el Fan Page de Facebook de los candidatos ya mencionados obtuvo como resultados principales que la mayoría de las interacciones generadas corresponden a la dimensión social /personal del candidato, poniendo en evidencia el fenómeno de la personalización de la política en el marco de la comunicación política digital. En cuanto a la agenda temática se analizó la estrecha relación que existe entre la ideología política que representan estos candidatos y el posicionamiento de la agenda temática en sus contenidos digitales. Dentro de las temáticas que generan más interacciones se encuentran: trabajo, educación, democracia, jóvenes (participación política) y finalmente posicionamiento de la imagen del candidato.
description: This research analyzes the digital political communication strategies on the social network Facebook, of the candidates for the presidency of the Republic of Colombia Oscar Iván Zuluaga, Sergio Fajardo and Gustavo Petro, in the framework of the presidential elections of 2022. This analysis of the publications on the Facebook Fan Page of the aforementioned candidates obtained the main results that most of the interactions generated correspond to the candidate's social / personal dimension, highlighting the phenomenon of the personalization of politics in the framework of digital political communication. Regarding the thematic agenda, the close relationship that exists between the political ideology represented by these candidates and the positioning of the thematic agenda in their digital content was analyzed. Among the themes that generate more interactions are: work, education, democracy, youth (political participation) and finally positioning of the candidate's image.
PV Installations Based on Vertically Mounted Bifacial Modules Evaluation of Energy Yield and Shading Effects
Creators: name: Nussbaumer, H.
name: Klenk, M.
name: Schär, D.
name: Baumann, T.
name: Carigiet, F.
name: Keller, N.
name: Baumgartner, F.P.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 2037-2041
description: Bifacial solar modules promise an increased energy yield, compared to systems with standard,
monofacial panels, and also offer new opportunities with regard to the installation. One particular approach is the
vertical mounting of PV modules, which is reported to be an effective measure to avoid soiling or dust deposition and
is an option to obtain a broadened energy generation profile. In spite of the general interest in this type of installation,
the amount of published data is very limited, especially with regard to arrays, for which pronounced shading effects
can be expected.
In this work we present an analysis of the energy yield and the respective losses for arrays of vertically mounted
bifacial solar modules with varied installation conditions.
A BP-MF-EP Based Iterative Receiver for Joint Phase Noise Estimation, Equalization and Decoding
Creators: name: Wang, Wei
name: Wang, Zhongyong
name: Zhang, Chuanzong
name: Guo, Qinghua
name: Sun, Peng
name: Wang, Xingye
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this work, with combined belief propagation (BP), mean field (MF) and expectation propagation (EP), an iterative receiver is designed for joint phase noise (PN) estimation, equalization and decoding in a coded communication system. The presence of the PN results in a nonlinear observation model. Conventionally, the nonlinear model is directly linearized by using the first-order Taylor approximation, e.g., in the state-of-the-art soft-input extended Kalman smoothing approach (soft-in EKS). In this work, MF is used to handle the factor due to the nonlinear model, and a second-order Taylor approximation is used to achieve Gaussian approximation to the MF messages, which is crucial to the low-complexity implementation of the receiver with BP and EP. It turns out that our approximation is more effective than the direct linearization in the soft-in EKS with similar complexity, leading to significant performance improvement as demonstrated by simulation results.
description: 5 pages, 3 figures, Resubmitted to IEEE Signal Processing Letters
Characterisation of Hourly Temperature of a Thin-Film Module from Weather Conditions by Artificial Intelligence Techniques
Creators: name: Piliougine Rocha, M.
name: Mora-López, L.
name: Carretero, J.
name: Sidrach-De-Cardona, M.
Publisher: name: WIP
Year: 2015
Subjects: OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
PV Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1980-1983
description: The aim of this paper is the use and validation of artificial intelligence techniques to predict the
temperature of a thin-film module based on tandem CdS/CdTe technology. The cell temperature of a module is
usually tens of degrees above the air temperature, so that the greater the intensity of the received radiation, the greater
the difference between these two temperature values. In practice, directly measuring the cell temperature is very
complicated, since cells are encapsulated between insulation materials that do not allow direct access. In the literature
there are several equations to obtain the cell temperature from the external conditions. However, these models use
some coefficients which do not appear in the specification sheets and must be estimated experimentally. In this work,
a support vector machine and a multilayer perceptron are proposed as alternative models to predict the cell
temperature of a module. These methods allow us to achieve an automatic way to learn only from the underlying
information extracted from the measured data, without proposing any previous equation. These proposed methods
were validated through an experimental campaign of measurements. From the obtained results, it can be concluded
that the proposed models can predict the cell temperature of a module with an error less than 1.5 °C.
Pteropus speciosus K. Andersen 1908
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Pteropodidae
Pteropus
Pteropus speciosus

description: Pteropus speciosus K. Andersen, 1908. Ann. Mag. Nat. Hist., ser. 8, 2:364. TYPE LOCALITY: Philippines, Malanipa Isl (off west end of Mindanao). DISTRIBUTION: Sulu Arch., Basilan and Mindanao (Philippines); Solombo Besar and Mata Siri (Java Sea); Talaut Isis. STATUS: CITES - Appendix II.
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 151, DOI: 10.5281/zenodo.7353060
Radiative stability of tiny cosmological constant from the Swampland and quantized compactification
Creators: name: Nam, Cao H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We address a quantization mechanism that can allow us to understand why the cosmological constant is not large under the quantum corrections from studying the circle compactification solution of the Standard Model coupled to Einstein gravity which is subject to the constraint of the Swampland conjectures. A novel result in the present work compared to the previous investigations in the literature is that the radius of the compactified dimension and the 4D cosmological constant $Λ_4$ must in fact be quantized. The quantization rule of the cosmological constant is given by $Λ_4\propto n^2$ with $n=1,2,3,4,\ldots$, which means that the values of $Λ_4$ are not arbitrary but only its specific values are allowed. In general, the quantum corrections as well as other effects would break this quantization rule. Hence, it could prevent the quantum fluctuations from generating zero-point energy contributions to the cosmological constant.
description: 7 pages, 1 figure. Added appendices, updated references, fixed errors and typos, removed the parts after page 3 of v1 to write a separate paper, published in PRD