cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Distinguishing Between Truth and Fake: Using Explainable AI to Understand and Combat Online Disinformation
Creators: name: Bezzaoui, Isabel
name: Fegert, Jonas
name: Weinhardt, Christof
Publisher: name: International Academy Research and Industry Association (IARIA)
Year: 2022
Subjects: disinformation
digital democracy
e-participation
explainable AI

description: Disinformation campaigns have become a major threat to democracy and social cohesion. Phenomena like conspiracy theories promote political polarization; they can influence elections and lead people to (self-)damaging or even terrorist behavior. Since social media users and even larger platform operators are currently unready to clearly identify disinformation, new techniques for detecting online disinformation are urgently needed. In this paper, we present DeFaktS, an Information Systems research project, which takes a comprehensive approach to both researching and combating online disinformation. The project develops a data pipeline in which (i) messages are extracted in large quantities from suspicious social media groups and messenger groups with the help of annotators. Based on this corpus, a Machine Learning-based System (ii) is trained that can recognize factors and stylistic devices characteristic of disinformation, which will be used for (iii) an explainable artificial intelligence that informs users in a simple and comprehensible way about the occurrence of disinformation. Furthermore, in this paper an interdisciplinary multi-level research approach focusing on media literacy and trust in explainable artificial intelligence is suggested in order to operationalize research on combating disinformation.
Analysis of the Performance of PV Modules with Cell-String Level Optimizers from a LCOE Perspective
Creators: name: Zhang, S.
name: Quan, P.
name: Deng, S.
name: Lee, E.
name: Yu, J.
name: Wu, M.
name: Zhang, Z.
name: Verlinden, P.J.
name: Feng, Z.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Balance of System Components

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2126-2129
description: This paper reviews and predicts the PV system component cost from 2013 to 2020. The added cost of cell-string smart module is also summarized by technology and geographical region. The benefit of a PV module with cell-string optimizers (or sub-string optimizers) is analyzed. The energy yield of systems with and without smart module is simulated taking into account the ground coverage ratio (GCR), panel mismatch, soiling, row-to-row shading, and the power degradation. Incorporating all information provided, a template of LCOE calculation is proposed. The LCOE of a conventional system and a smart module system is calculated by the region such as the USA, Europe, China and Japan. The present value of LCOE is obtainable, as well as its future values up to the year 2020 based on the system and smart module price roadmap. The analysis predicts that, if the added cost of smart PV modules gets reduced to approximately $0.06(USD)/Wp, the installation of smart PV modules for residential, commercial rooftop projects and utility-scale projects will be more feasible. In the case of rooftop distributed systems in China, the application segment which has been growing rapidly in recent years, the LCOE of cell-string level smart PV systems is already approximately 2~5% less than that of conventional PV systems.
A High Speed Global Maximum Power Point Tracking Algorithm for PV Systems
Creators: name: Basoglu, M.E.
name: Çakir, B.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Balance of System Components

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2118-2122
description: Partial shading is one of the unfavourable conditions for photovoltaic modules since available power of them decreases. Besides that, maximum power point tracking becomes difficult in that kind of condition. Multiple maximum power points occur on the voltage - power curve of photovoltaic modules, if modules have bypass diodes. Hence, this paper proposes a new algorithm which provides fast and accurate tracking in partial shading conditions. It is shown that values of duty ratios change in limited range in partial shading which is approximately 40% in buck-boost converter topologies which is the major idea of the proposed algorithm. A few duty ratios, which are based on the number of bypass diodes, are calculated by using equivalent resistance of photovoltaic module which is ratio of voltage and current of a module. Then, these duty ratios are applied to the DC-DC converter. A single ended primary inductance converter (SEPIC) is modelled in MATLAB/Simulink, in order to validate the performance of the proposed algorithm. Simulation results show that proposed algorithm has capability of tracking global maximum power point in all partial shading conditions and it has simple structure which can make this algorithm applicable for commercial products.
Testing of Smart PV Modules
Creators: name: Gfeller, D.
name: Muntwyler, U.
name: Renken, C.
name: Borgna, L.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Balance of System Components

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2130-2134
description: There are more and more PV modules with integrated electronic devices on the market. These smart
PV modules have their electronic devices either directly inside the junction box or in a box in close proximity to the
module. Common applications for smart modules are MPP tracking on module level (with microinverters or power
optimizers), monitoring of the module's electrical data or safety features such as disconnecting the module in case of
fire. Standard tests for PV modules are not intended for modules containing electronics other than bypass diodes in
their junction box. If there are for example large capacitors in parallel to the cells, it is no longer possible to measure
the module's I/V curve with a flashed solar simulator. In case of microinverters or power optimizers in the junction
box, the module's DC terminals might not even be accessible, especially when the junction box is potted. This paper
proposes methods for classifying and testing of different types of smart PV modules.
Perfect powers in products of terms of elliptic divisibility sequences
Creators: name: Hajdu, Lajos
name: Laishram, Shanta
name: Szikszai, Márton
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: primary 11D99, secondary 11B37

description: Diophantine problems involving recurrence sequences have a long history and is an actively studied topic within number theory. In this paper, we connect to the field by considering the equation \begin{align*} B_mB_{m+d}\dots B_{m+(k-1)d}=y^\ell \end{align*} in positive integers $m,d,k,y$ with $\gcd(m,d)=1$ and $k\geq 2$, where $\ell\geq 2$ is a fixed integer and $B=(B_n)_{n=1}^\infty$ is an elliptic divisibility sequence, an important class of non-linear recurrences. We prove that the above equation admits only finitely many solutions. In fact, we present an algorithm to find all possible solutions, provided that the set of $\ell$-th powers in $B$ is given. (Note that this set is known to be finite.) We illustrate our method by an example.
description: To appear in Bulletin of Australian Math Society
Optimum Sizing and Exploitation of Results of Ndem’s Solar Power Plant Production
Creators: name: Leye, S.N.
name: Mbodji, S.
name: Dia, F.S.
name: Diao, A.
name: Sissoko, G.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Operation of PV Systems

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2077-2080
description: The electrical power is not continuously available in several places. The village of Ndem, in Senegal,
lived this situation until December 2012. In these places some activities may not be made for lack of electricity. That
is why, electricity generated through photovoltaic panels was used to drive the training and textile centers of this
Senegalese village.
In this work, a parameter study is carried out to find out the best combination of the PV panel wattage, battery
capacity, regulator and inverter.
Hence, it is conclude that it is feasible to operate the two centers on solar photovoltaic without grid power with 6.4
KWp of 30 panel arrays and 16 lead batteries with a capacity of 440 Ah.
We present the monthly and daily production of the photovoltaic central and the efficiency of the inverter in 2013.
We also present the radiance and the temperature effect on the daily and monthly production. The study also carries
out the utility of maintenance.
LowCost-Outdoor-Electroluminescence: Significant Improvements of the Method
Creators: name: Mertens, K.
name: Arnds, A.
name: Behrens, G.
name: Domnik, A.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Operation of PV Systems

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2081-2083
description: We show methods to use the video mode of modified DSLR cameras for outdoor-EL measurements. This by far simplifies the analysis of module failures onsite. As a result, the Low-Cost-Outdoor-EL method will continue its way to become a standard inspection method besides thermography to analyze PV plants onsite.
Information management throughout the life cycle of buildings - Basics and new approaches such as blockchain
Creators: name: Ganter, M.
name: Lützkendorf, T.
Publisher: name: Karlsruhe
Year: 2019

description: Ensuring sustainability for real estate is subject - among other aspects - to building related information. This information needs to be stored and updated continuously throughout the life cycle of a building. A delivery to buyers, tenants, consultants or other actors must be possible at any time. However, in most cases transactions cause significant loss of information while the issues associated with the "building passport" approach remains unsolved to date. Considering the long service life of buildings, various questions arise: (1) How to support data generation and storage within the life cycle and how to encourage actors to compete? (2) How to assure a high data quality and how to store it over a long period of time? (3) How to assure that all data users can track down the data owners at any point of time to manage compliance and legal issues? (4) Are there any new business models or new scopes for designers or other service providers? Information needs of actors along the life cycle are analysed and new information technologies (e.g. blockchain) are discussed. A relation to Building Information Modeling (BIM) is shown. Potentials of enhancing existing approaches regarding documentation retracing and accessibility of building and life cycle related information by using new technologies and IT are discussed; benefits of using a blockchain based system is pointed out by referring to existing pilot projects and first examples. Solution approaches for building passports are shown.
Evaluation of a PV-Panel via Long Term High Speed Recording of IV-Curves
Creators: name: Paasch, K.M.
name: Nymand, M.
name: Cornaro, C.
name: Pierro, M.
name: Bucci, F.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Operation of PV Systems

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2105-2109
description: This paper presents results from a high speed photovoltaic sweeper system measuring the IVcharacteristics
once per second of a solar panel under test at the ESTER PV test laboratory at the Tor Vergata
University in Rome and in Denmark. The high temporal resolution of the scans shows the detailed temperature
characteristics of the primary panel parameters compared to the reference irradiation/spectral data obtained via the
ESTER instrumentation. An analysis of the irradiance levels shows that the STC and NOCT conditions in real life are
extremely rare events. Analysis show that the temperature coefficient is depending on the irradiance level.
Models of interacting supernovae and their spectral diversity
Creators: name: Dessart, Luc
name: Hillier, D. John
name: Audit, Edouard
name: Livne, Eli
name: Waldman, Roni
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Using radiation-hydrodynamics and radiative-transfer simulations, we explore the origin of the spectral diversity of interacting supernovae (SNe) of type IIn. We revisit SN1994W and investigate the dynamical configurations that can give rise to spectra with narrow lines at all times. We find that a standard ~10Msun 10^51erg SN ejecta ramming into a 0.4Msun dense CSM is inadequate for SN1994W, as it leads to the appearance of broad lines at late times. This structure, however, generates spectra that exhibit the key morphological changes seen in SN1998S. For SN1994W, we consider a completely different configuration, which involves the interaction at a large radius of a low mass inner shell with a high mass outer shell. Such a structure may arise in an 8-12Msun star from a nuclear flash (e.g., of Ne) followed within a few years by core collapse. Our simulations show that the large mass of the outer shell leads to the complete braking of the inner shell material, the formation of a slow dense shell, and the powering of a luminous SN IIn, even for a low inner shell energy. Early on, our model line profiles are typical of SNe IIn, exhibiting narrow cores and broad electron-scattering wings. As observed in SN1994W, they also remain narrow at late times. Our SN1994W model invokes two low energy ejections, both atypical of observed massive stars, and illustrates the diversity of configurations leading to SNe IIn. These results also highlight the importance of spectra to constrain the dynamical properties and understand the origin of SNe IIn.
description: Accepted to MNRAS
Investigation and Diagnostic Tool Comparison: Infrared Thermography vs Electroluminescence
Creators: name: Bertani, D.
name: Liciotti, C.
name: Guastella, S.
name: Camilloni, C.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Operation of PV Systems

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2098-2104
description: This paper presents the comparison of two PV modules diagnostic/inspection methods in the field. The comparison of infrared thermography and electroluminescence has been performed with the practical experience from the measurements. The committee draft 82/1109/CD (IEC/TS 60904-12 Ed. 1.0 Photovoltaic devices - Part 12: Infrared thermography of photovoltaic modules) and committee draft 82/1062/CD (IEC/TS 60904-13 Ed. 1.0 Photovoltaic devices - Part 13: Electroluminescence of photovoltaic modules) were taken into account. The aim of this work is to identify the best diagnostic tool for assessing the performance of photovoltaic modules and identifying the most commons failure causes in outdoor and indoor conditions.
Comparison of inclusive and photon-tagged jet suppression in 5.02 TeV Pb+Pb collisions with ATLAS
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Parton energy loss in the quark-gluon plasma (QGP) is studied with a measurement of photon-tagged jet production in 1.7 nb$^{-1}$ of Pb+Pb data and 260 pb$^{-1}$ of $pp$ data, both at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV, with the ATLAS detector. The process $pp \to γ$+jet+$X$ and its analogue in Pb+Pb collisions is measured in events containing an isolated photon with transverse momentum ($p_\mathrm{T}$) above $50$ GeV and reported as a function of jet $p_\mathrm{T}$. This selection results in a sample of jets with a steeply falling $p_\mathrm{T}$ distribution that are mostly initiated by the showering of quarks. The $pp$ and Pb+Pb measurements are used to report the nuclear modification factor, $R_\mathrm{AA}$, and the fractional energy loss, $S_\mathrm{loss}$, for photon-tagged jets. In addition, the results are compared with the analogous ones for inclusive jets, which have a significantly smaller quark-initiated fraction. The $R_\mathrm{AA}$ and $S_\mathrm{loss}$ values are found to be significantly different between those for photon-tagged jets and inclusive jets, demonstrating that energy loss in the QGP is sensitive to the colour-charge of the initiating parton. The results are also compared with a variety of theoretical models of colour-charge-dependent energy loss.
description: 42 pages in total, author list starting page 25, 9 figures, published in Phys. Lett. B. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HION-2022-14/
Ultra-Flat Galaxies Selected from RFGC Catalog. II. Orbital Estimates of Halo Masses
Creators: name: Karachentsev, I. D.
name: Karachentseva, V. E.
name: Kudrya, Yu. N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We used the Revised Flat Galaxy Catalog (RFGC) to select 817 ultra-flat (UF) edge-on disk galaxies with blue and red apparent axial ratios of $(a/b)_B > 10.0$ and $(a/b)_R > 8.5$. The sample covering the whole sky, except the Milky Way zone, contains 490 UF galaxies with measured radial velocities. Our inspection of the neighboring galaxies around them revealed only 30 companions with radial velocity difference of $\midΔV\mid<500$ km s$^{-1}$ inside the projected separation of $R_p < 250$ kpc. Wherein, the wider area around the UF galaxy within $R_p < 750$ kpc contains no other neighbors brighter than the UF galaxy itself in the same velocity span. The resulting sample galaxies mostly belong to the morphological types Sc, Scd, Sd. They have a moderate rotation velocity curve amplitude of about $120$ km s$^{-1}$ and a moderate K-band luminosity of about $10^{10}L_{\odot}$. The median difference of radial velocities of their companions is $87$ km s$^{-1}$, yielding the median orbital mass estimate of about $5\times10^{11}M_{\odot}$. Excluding six probable non-isolated pairs, we obtained a typical halo-mass-to-stellar-mass of UF galaxies of about $30$, what is almost the same one as in the principal spiral galaxies, like M 31 and M 81 in the nearest groups. We also note that ultra-flat galaxies look two times less "dusty" than other spirals of the same luminosity.
description: 11 pages, 6 figures, 3 tables, accepted by Astrophysical Bulletin, 2016, No.2
Lessons Learned from the Design and Operation of a 300 kWp PV System with Full Self-Consumption of the Energy Produced
Creators: name: Gaiddon, B.
name: Joos, M.
name: Thebault, A.
name: Derobert, C.
name: Debray, N.
name: Dupret, M.
name: Rozel, B.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Operation of PV Systems

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2110-2112
description: This article presents the lessons learned from the design and operation of a 300 kWp PV system
installed, during spring and summer 2015, on the roof of a new logistic building located in western France. As this
building is equipped with refrigerating units, thus with a high power consumption during hot and sunny days, it has
been decided to consume the energy produced on-site without any regulated feed-in tariff but with a B-to-B contract,
a first of its kind in France. In order to not inject power into the local MV distribution grid, the active power
management feature of PV inverters has been implemented, also a first of its kind in France. This paper gives a
summary of the detailed on-going monitoring campaign that aims to check if the actual power consumption of the site
matches the consumption forecast and if the active power management feature of PV inverters has a significant
impact on the total energy generation of this PV system.
Innovative Semi-Automatic Cleaning Technique for High Concentration Photovoltaic Panels
Creators: name: Dahlioui, D.
name: Elfatimy, Y.
name: Benazzouz, A.
name: Barhdadi, A.
name: Borelli, G.
name: Carpanelli, M.
name: Verdilio, D.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Operation of PV Systems

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2084-2088
description: In this work, we have first demonstrated that soiling has a significant effect on the high concentrated photovoltaic system productivity. Next, we presented the integrated cleaning technique we have designed and we currently try to implement on the system. This innovative technique allows first reducing soiling of the HCPV modules, avoid micro-scratches on their glass surfaces and improve their energy productivity. The proposed technique is based on the use of compressed air flux. This study can lead to a final prototype achievement that we propose in terms of perspectives, such as the integration of a dirt sensor and the allocation of automatic control of all the system. These additional improvements would be useful to develop the first Moroccan proper cleaning solution for high concentration photovoltaic panels.
title: Polyurethane-Based Gel Electrolyte for Application in Flexible Electrochromic Devices
Creators: name: Johannes, Christopher
name: Hartung, Michael
name: Heim, Hans-Peter
Publisher: name: Universität Kassel
Year: 2022
Subjects: subject: electrolyte
subject: electrochromic device
subject: flexible
subject: 660
subject: Elektrolyt
subject: Polyurethane
subject: Kunststoffverarbeitung
subject: Chemische Reaktion
subject: Elektrochemie
subject: Polyelektrolyt
subject: Aggregatzustand
subject: Ionenleitung
subject: Polyethylenglykole

description: Gefördert durch den Publikationsfonds der Universität Kassel
The Influence of Child Food Packaging Design on Perceptions of Kenyan Consumers: Conjoint Analysis Combined with Eye Tracking
Creators: name: Cramer, Ina
name: Schröter, Iris
name: Tabi Roba, Diba
name: Tadicha Wario, Hussein
name: Mergenthaler, Marcus
Publisher: name: Proceedings in Food System Dynamics
Year: 2023

description: Locally manufactured, healthy and affordable child foods based on traditional recipes have the potential to improve the high child malnutrition rates in African drylands. Professional, informative packaging is needed by women groups manufacturing such foods to access the formal market. With the aim of identifying suitable packaging designs, a conjoint experiment was combined with eye tracking. 16 packaging designs were created (D-efficient design), randomly displayed and their attractiveness rated by 98 participants. Overall, the results indicate that child food packaging designs displaying food safety marks and detailed nutritional information could help Kenyan consumers to build trust in the offered product. Consumers gain information from pictures displaying the product’s ingredients as well as a logo composed using the colours of the Kenyan flag. The picture of a cute cartoon animal helps consumers identify the product as child food
description: Proceedings in Food System Dynamics, PROCEEDINGS IN SYSTEM DYNAMICS AND INNOVATION IN FOOD NETWORKS 2022
PV Module Ageing in Southern Europe – Hot Spots and Impact on Yield
Creators: name: Grottke, M.
name: Beck, O.
name: Espín Sanchez, F.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Operation of PV Systems

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2089-2092
description: By 2006 the common expectation was that crystalline PV modules produced in Europe by a leading manufacturer (and certified according to IEC 61215 and IEC 61730) were designed for long-term outdoor operation, including in challenging ambients. However, monitoring results of systems using large-area, Si-cell based Solon modules have shown another reality. Operation in an ambient with high irradiance, high temperatures and high temperature variations - namely on two-axis trackers in Southern Spain - resulted in accelerated module ageing. By 2016, after ten years of operation, every second PV module of a PV park with such trackers shows degradation effects. The peak capacity of sub-systems is partially reduced to below 80% of the initial capacity. A variety of defect mechanisms is observed. Countermeasures to remedy the situation had to be developed and implemented to keep systems operational.
Aromatase expression in human ovarian tumours
Creators: name: Luketic, Marija.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Copy number-aware methylation deconvolution analysis of cancers using whole genome bisulfite sequencing data
Creators: name: Mensah, Nana
name: Cadiuex, Elizabeth Larose
name: Lesluyes, Tom
name: Demeulemeester, Jonas
name: Beck, Stephan
name: Van Loo, Peter
Publisher: name: F1000 Research Limited
Year: 2023

description: Aberrant DNA methylation is a molecular feature of metastatic castration-resistant prostate cancer (mCRPC). Although whole genome bisulfite sequencing (WGBS) of bulk tumors is widely used to reveal aberrant methylation at base-pair resolution, bulk tumor methylation signals are confounded by sample-specific variation in tumor purity and ploidy. We developed CAMDAC to address these confounders [2] and present an extension of this method for WGBS analysis. Applied to mCRPC samples, CAMDAC provides pure tumor methylation estimates at each CpG site, increasing our power to detect tumor-normal differential methylation events in cancer evolution. We use SNV-phased reads to demonstrate that CAMDAC-deconvolved methylation rates are superior to bulk methylation. Furthermore, we demonstrate the use of normal tissue methylation panels for deconvolution in the absence of patient-matched normal tissue and use EpiSCORE to highlight sources of heterogeneity between normal reference panels used for deconvolution. CAMDAC is an R package publicly available at https://github.com/VanLoo-lab/CAMDAC/.
Luminous blue variables: An imaging perspective on their binarity and near environment
Creators: name: Martayan, Christophe
name: Lobel, Alex
name: Baade, Dietrich
name: Mehner, Andrea
name: Rivinius, Thomas
name: Boffin, H. M. J.
name: Girard, Julien
name: Mawet, Dimitri
name: Montagnier, Guillaume
name: Blomme, Ronny
name: Kervella, Pierre
name: Sana, Hugues
name: Štefl, Stanislav
name: Zorec, Juan
name: Lacour, Sylvestre
name: Bouquin, Jean-Baptiste Le
name: Martins, Fabrice
name: Mérand, Antoine
name: Patru, Fabien
name: Selman, Fernando
name: Frémat, Yves
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. Luminous blue variables (LBVs) are rare massive stars with very high luminosity. They are characterized by strong photo-metric and spectroscopic variability related to transient eruptions. The mechanisms at the origin of these eruptions is not well known. In addition, their formation is still problematic and the presence of a companion could help to explain how they form. Aims. This article presents a study of seven LBVs (about 20% of the known Galactic population), some Wolf-Rayet stars, and massive binaries. We probe the environments that surround these massive stars with near-, mid-, and far-infrared images, investigating potential nebula/shells and the companion stars. Methods. To investigate large spatial scales, we used seeing-limited and near diffraction-limited adaptive optics images to obtain a differential diagnostic on the presence of circumstellar matter and to determine their extent. From those images, we also looked for the presence of binary companions on a wide orbit. Once a companion was detected, its gravitational binding to the central star was tested. Tests include the chance projection probability, the proper motion estimates with multi-epoch observations, flux ratio, and star separations. Results. We find that two out of seven of LBVs may have a wide orbit companion. Most of the LBVs display a large circumstellar envelope or several shells. In particular, HD168625, known for its rings, possesses several shells with possibly a large cold shell at the edge of which the rings are formed. For the first time, we have directly imaged the companion of LBV stars.
description: Astronomy and Astrophysics, EDP Sciences, 2016
Bacteria Lectin Recognition Towards Fucose Binding Motifs Highlights the Impact of Presenting Mucin Core Glycopeptides
Creators: name: Behren, Sandra
name: Yu, Jin
name: Pett, Christian
name: Shorlemer, Manuel
name: Heine, Viktoria
name: Fischöder, Thomas
name: Elling, Lothar
name: Westerlind, Ulrika
Publisher: name: RWTH Aachen University
Year: 2021
Subjects: subject: 570

description: 9 Seiten (2021). doi:10.26434/chemrxiv-2021-79qhk
Is forgetting less a good inductive bias for forward transfer?
Creators: name: Chen, Jiefeng
name: Nguyen, Timothy
name: Gorur, Dilan
name: Chaudhry, Arslan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: One of the main motivations of studying continual learning is that the problem setting allows a model to accrue knowledge from past tasks to learn new tasks more efficiently. However, recent studies suggest that the key metric that continual learning algorithms optimize, reduction in catastrophic forgetting, does not correlate well with the forward transfer of knowledge. We believe that the conclusion previous works reached is due to the way they measure forward transfer. We argue that the measure of forward transfer to a task should not be affected by the restrictions placed on the continual learner in order to preserve knowledge of previous tasks. Instead, forward transfer should be measured by how easy it is to learn a new task given a set of representations produced by continual learning on previous tasks. Under this notion of forward transfer, we evaluate different continual learning algorithms on a variety of image classification benchmarks. Our results indicate that less forgetful representations lead to a better forward transfer suggesting a strong correlation between retaining past information and learning efficiency on new tasks. Further, we found less forgetful representations to be more diverse and discriminative compared to their forgetful counterparts.
description: Published as a conference paper at ICLR 2023
Performance of a Module and Defect Detection Algorithm for Aerial Infrared Images as a Function of the Flying Altitude
Creators: name: Dalsass, M.
name: Deitsch, S.
name: Luchscheider, P.
name: Gallwitz, F.
name: Brabec, C.J.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Operation of PV Systems

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2036-2040
description: In recent years, remote-controlled unmanned air vehicles (UAV) have been used increasingly to attain
aerial infrared (aIR) recordings of large photovoltaic (PV) power plants with which thermally suspicious PV modules
can be identified and localized. But so far, aIR recordings are still analyzed mostly manually – a process which can
be extremely time-consuming and error-prone. In this context, the performance of a module and defect detection
algorithm for aIR images is evaluated as a function of the flying altitude. For this purpose, aIR recordings of a PV
power plant are generated from six flying altitudes from 5 m to 30 m above ground level by means of a drone
measurement system and used as data input for the image processing tool. The results indicate optimal flying
altitudes for both module and defect detection. However, the most suitable flying altitude may be a compromise with
further conditions. The findings of this work will advance future automatic monitoring and early detection systems.
Free-space quantum signatures using heterodyne detection
Creators: name: Croal, Callum
name: Peuntinger, Christian
name: Heim, Bettina
name: Khan, Imran
name: Marquardt, Christoph
name: Leuchs, Gerd
name: Wallden, Petros
name: Andersson, Erika
name: Korolkova, Natalia
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Digital signatures guarantee the authorship of electronic communications. Currently used "classical" signature schemes rely on unproven computational assumptions for security, while quantum signatures rely only on the laws of quantum mechanics. Previous quantum signature schemes have used unambiguous quantum measurements. Such measurements, however, sometimes give no result, reducing the efficiency of the protocol. Here, we instead use heterodyne detection, which always gives a result, although there is always some uncertainty. We experimentally demonstrate feasibility in a real environment by distributing signature states through a noisy 1.6km free-space channel. Our results show that continuous-variable heterodyne detection improves the signature rate for this type of scheme and therefore represents an interesting direction in the search for practical quantum signature schemes.
Intracytoplamic sperm injection in the bovine : a model for endangered species
Creators: name: James, William .
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Control Strategy of a Photovoltaic Module Emulator Based on Hill-Climbing and Single-Diode Model
Creators: name: Bastidas Rodriguez, J.D.
name: Ospina, B.
name: Parra, J.S.
name: Franco-Mejia, E.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Operation of PV Systems

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2070-2076
description: This paper introduces a control strategy of a photovoltaic (PV) module emulator based on the singlediode
model and a hill-climbing (HC) algorithm. A PV module emulator (PVME) is implemented by using a power
converter whose output current and voltage match the current vs. voltage (I-V) curve of a PV module for a given
load. The control strategy is divided into two parts: the definition of the operating point, and the setting of the power
converter duty cycle. The PVME operating point is the intersection between the I-V curve of the PV module (given
by the single-diode model) and actual load, which can be found by using Newton-Raphson (NR) method. The duty
cycle of the power converteris tracked by an HC algorithm, which perturbs the duty cycle in different directions and
evaluates the error until the desired operating point is reached. The proposed control strategy is validated with
simulations and experiments taking an 85 W PV module as a reference. The relative errors obtained in the I-V curve
reproduction are less than 4% and 5% for the simulation and experiments, respectively.
Frequency analysis of the first-overtone RR Lyrae stars based on the Extended Aperture Photometry from the K2 data
Creators: name: Netzel, H.
name: Molnar, L.
name: Plachy, E.
name: Benko, J. M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Additional low-amplitude signals are observed in many RR Lyrae stars, beside the pulsations in radial modes. The most common ones are short-period signals forming a period ratio of around 0.60--0.65 with the first overtone, or long-period signals forming a period ratio of around 0.68. The RR Lyrae stars may also exhibit quasi-periodic modulation of the light curves, known as the Blazhko effect. We used the extensive sample of the first-overtone RR Lyrae stars observed by the Kepler telescope during the K2 mission to search for and characterize these low-amplitude additional signals. K2 data provides space-based photometry for a statistically significant sample. Hence this data is excellent to study in detail pulsation properties of RR Lyrae stars. We used K2 space-based photometry for RR Lyrae candidates from Campaigns 0-19. We selected RR Lyrae stars pulsating in the first overtone and performed a frequency analysis for each star to characterize their frequency contents. We classified 452 stars as first-overtone RR Lyrae. From that sample, we selected 281 RR$_{0.61}$ stars, 67 RR$_{0.68}$ stars, and 68 Blazhko stars. We found particularly interesting stars which show all of the above phenomena simultaneously. We detected signals in RR$_{0.61}$ stars that form period ratios lower than observed for the majority of stars. These signals likely form a new sequence in the Petersen diagram, around a period ratio of 0.60. In 32 stars we detected additional signals that form a period ratio close to that expected in RRd stars, but the classification of these stars as RRd is uncertain. We also report a discovery of additional signals in eight stars that form a new group in the Petersen diagram around the period ratio of 0.465-0.490. The nature of this periodicity remains unknown.
description: 29 pages, 29 figures, 4 tables, accepted for publication in A&A, full tables are available upon request before publication
A Simulation Based Optical and Electrical Approach to Estimate Energy Yield of Various Designs of Curved Modules
Creators: name: Hanifi, H.
name: Pfau, C.
name: Schneider, J.
name: Bagdahn, J.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Operation of PV Systems

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2041-2045
description: The concept of sustainable structures is tightly involved with the architectural designs. Photovoltaic is
the cheapest way to generate small amount of electricity anywhere. When PV follows functional or aesthetic designs,
curved shapes can become desirable. PV modules with curved shapes can follow different forms over the structures
and generate electrical power. In this paper, we have simulated the radiation power over 60-cell modules with
different angle of curvature by considering the location and the elevation of the modules. In the next step, we have
simulated two different module interconnection layouts to investigate the performance of each module at specific
levels of curvature. We show that after a range of curvature, it is better to use parallel coupled strings and change the
interconnection of the modules to reduce current mismatch over the strings. In this study, we show that for the
modules with the 8 degrees tilt angle between the cells, it is better to use standard series connected cells. For higher
levels of curvature it is necessary to rearrange the interconnections. The module with parallel connected strings does
not have bypass diodes and it can save up to 125% energy compared to the conventional one in high levels of
curvature.
A Software Suite for Simulation and Design of PV Plants
Creators: name: Lokhat, I.
name: Boussac, S.
name: Lelong, B.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Operation of PV Systems

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2046-2048
description: The drop of the prices of the PV modules and other BOS components lead to an increasing part of the
‘soft’ costs, which include the design and the engineering of the system. The decrease of these soft costs has thus
become one of the challenges the PV industry has to tackle to achieve further global systems costs reduction. During
the design of a PV power plant, several software are used, and most of the time, these software are independent. As
the design purpose is mainly the quest for an optimum between the yield and the investment cost, the process is
iterative and can be very time-consuming if there is no straightforward communication between the different tools.
The suite of three compatible software called Archelios Suite, is based on a unique Photovoltaic Information Model
(PVIM) which allows a fast and efficient interaction between the software and therefore the reduction of the time
dedicated to the design of the plant.
Value chain Performance of Anadara tuberculosa (Concha Prieta)
Creators: name: Prado-Carpio, Eveligh
name: Martínez-Soto, Moisés Enrique
name: Olivo-Garrido, María De Lourdes
name: Quiñonez-Cabeza, Manuel
name: Rodríguez-Monroy, Carlos
Publisher: name: Proceedings in Food System Dynamics
Year: 2023

description: The bivalve mollusk, Anadara tuberculosa (Concha Prieta), is found in the mangroves of the American Pacific, where it is subject to subsistence extraction. This article characterizes the performance of its value chain in Ecuador. A descriptive methodology of a quantitative type, non-experimental design, field, cross-sectional, and ex-facto was applied. Similar questionnaires were designed, validated, and applied to each link in the chain to collect information. It is concluded that there is a poor performance of the value chain with reduced productivity, loss of competitiveness, and deterioration of the participants' quality of life.
description: Proceedings in Food System Dynamics, PROCEEDINGS IN SYSTEM DYNAMICS AND INNOVATION IN FOOD NETWORKS 2022
The scientific impact of Einstein's visit to Argentina, in 1925
Creators: name: Gangui, Alejandro
name: Ortiz, Eduardo L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The arrival of Albert Einstein in Argentina in 1925 had an impact, equally relevant, on the scientific community and on the general public. In this paper we discuss that visit from three different perspectives. Firstly, we consider the conditions that allowed for such visit to be possible. Then we focus on the institutional actors that facilitated it, as well as on the expertise and written references on topics related to relativity theory circulating at the time in the local community. In the last section we consider the implications of that visit for the local scientific environment.
description: PDF document, 11 pages; Other related documents available at http://www.universoeinstein.com.ar/einsteinargentina.htm
Analysis of Different Shading Pattern on the Total Cross Tide Connected Configuration of Solar PV Power Plant
Creators: name: Singh, D.
name: Bora, B.
name: Singh, Y.K.
name: Singh, R.
name: Rai, S.
name: Pradhan, B.
name: Bangar, M.
name: Dahiya, R.
name: Sharma, A.
name: Saikia, K.
name: Sastry, O.S.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Operation of PV Systems

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2052-2054
description: The aim of this study is to investigate the detrimental effects of partial shading on total cross tide connected solar PV modules, and compare their performance in terms of output power. In order to find optimum pattern least susceptible to partial shading effects, an array of 20 modules under variety of partial shaded conditions has been studied to test several shading profiles and results are presented. It is found that the effect of parasitic series resistance increases with increase in the area of partial shading. It concluded that power output is 4 % more in total cross tide connection, as compared to conventional series parallel connections.
Assisted reproductive techniques in the SLA inbred miniature pig
Creators: name: Arlaud, J. Jason .
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Structural and magnetic properties of the 5$d^2$ double perovskites Sr$_2 B$ReO$_6$ ($B$ $=$ Y, In)
Creators: name: Aczel, A. A.
name: Zhao, Z.
name: Calder, S.
name: Adroja, D. T.
name: Baker, P. J.
name: Yan, J. -Q.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have performed magnetic susceptibility, heat capacity, neutron powder diffraction, and muon spin relaxation experiments to investigate the magnetic ground states of the 5$d^2$ double perovskites Sr$_2$YReO$_6$ and Sr$_2$InReO$_6$. We find that Sr$_2$YReO$_6$ is a spin glass, while Sr$_2$InReO$_6$ hosts a non-magnetic singlet state. By making detailed comparisons with other 5$d^2$ double perovskites, we argue that a delicate interplay between spin-orbit coupling, non-cubic crystal fields, and exchange interactions plays a key role in the great variation of magnetic ground states observed for this family of materials.
description: 10 pages, 7 figures, submitted to PRB
Spectral Studies Investigating the Influence of Dust on Solar Transmittance
Creators: name: Khanum, K.K.
name: Mani, M.
name: Ramamurthy, P.C.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Operation of PV Systems

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2049-2051
description: Photovoltaic (PV) performance is significantly impacted due to dust settlement on the glass covering the panel,
fundamentally understood as transmittance loss. Maintaining a dust free PV panel requires a minimum of 0.5 L/m2 of water daily
in most tropical conditions where dust settlement is common. Most commercially available cells are Si based which harnesses as
electricity most of the visible part of the solar spectrum, while the rest of the spectrum is absorbed as heat. However given the fact
that the cross-section of a typical solar panel is multi-layered, with the top being a hi-transmittance glass, it is crucial to understand
influence of dust on this primary layer. Dust though universally present is not universally uniform and varies depending on the
atmospheric pollution, terrain (natural and anthropogenic) aggravations and vegetation. The composition is thus extremely varied.
Little is understood on the geometry of settled dust, its composition and spectral absorptivity in response to incident direct and
diffused radiation and its angle of incidence.
The current study experimentally investigates the spectral response (Spectroradiometer) of dust characteristic to Bangalore for
varying densities from mild soiling (~1g/m2) to heavy soiling (>5g/m2) and its elemental composition. The spectral absorptivity
has also been compared for near direct solar incidence vs diffused. Elemental composition (EDAX) of the dust samples partially
explained their spectral absorptivity. The results of the study provides critical insight into possible benefit of dust, at specific
densities and compositions, in reducing the heat gain of solar cell by absorbing IR at the surface of the glass.