cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
PV|Harvester – A Tool for PV Power Plant Performance Evaluation and Economic Optimization
Creators: name: Höller, R.
name: Högl, A.
name: Birajdar, M.
name: Royes Moreno, A.
name: Gudopp, D.
Publisher: name: WIP
Year: 2019
Subjects: PV Systems and Storage – Modelling, Design, Operation and Performance
Operation, Performance and Maintenance of PV Systems

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 1605-1608
description: Experience shows that most solar PV power plants do not operate at their optimum. In particular, in locations with good solar irradiation and/or high feed-in-tariffs this can lead to significant losses in power and revenues for plant owners and investors, and thus implies an operational risk for lenders and operators. From another perspective harvesting maximum energy yields from solar PV power plants provides a tremendous upside potential. PV|Harvester is a software tool developed by the University of Applied Sciences Upper Austria together with deea Solutions GmbH, Germany with the aim to quickly assess the operational performance of solar PV systems. The tool, developed in Python, is a result of many years of experience in planning, designing, and data analysis of solar PV power plants. PV|Harvester delivers detailed and fast performance analysis on string level, a clear view on improvement potentials, and a thorough health check of the asset. It can also be applied to a due diligence analysis as part of an asset transfer, for calculation of liquidated damages, and a general failure analysis and localization.
Particle Physics in High School Part I: Quantum Electrodynamics
Creators: name: Dorsch, Glauber Carvalho
name: Guio, Thaisa Carneiro da Cunha
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: This is the first paper of a series aiming to present a new teaching sequence for Particle Physics in high school. We propose a systematic discussion of the subject, covering not only the understanding of its key concepts, but also of the very nature of Science, of the factors that surround its practice and of its relations to technology, society and the environment, in a framework towards scientific literacy. In this work we present the first part of this teaching sequence, focused on the quantum theory of electromagnetism: Quantum Electrodynamics. We analyze the potentialities of the material proposed here, when applied in a dialogic manner by the teacher, by evaluating the presence of scientific literacy and engagement indicators throughout interventions at a full-time public school in Espirito Santo, Brazil.
description: 32 figures, in Portuguese
Characteristics of Parton Energy Loss Studied with High-p_T Particle Spectra from PHENIX
Creators: name: Reygers, Klaus
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In the first three years of the physics program at the Relativistic Heavy Ion Collider (RHIC) a picture was established in which the suppression of hadrons at high transverse momenta (p_T) in central Au+Au collisions is explained by energy loss of quark and gluon jets in a medium of high color-charge density. Measurements of single particle spectra for a smaller nucleus (Cu), for different center-of-mass energies and with higher statistics were performed in the subsequent years and are used to test predictions and assumptions of jet quenching models in more detail. The measurements presented here are consistent with a parton energy loss scenario so that these models can be used to relate the observed suppression to properties of the created medium.
description: To appear in the proceedings of 20th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions: Quark Matter 2008 (QM2008), Jaipur, India, 04-10 Feb 2008
Additional file 1 of Prevalence of HIV infection among non-elderly individuals with hepatitis C in Japan: a population-based cohort study using a health insurance claim data
Creators: name: Ikeuchi, Kazuhiko
name: Okushin, Kazuya
name: Saito, Makoto
name: Adachi, Eisuke
name: Tsutsumi, Takeya
name: Takura, Tomoyuki
name: Yotsuyanagi, Hiroshi
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: 60506 Virology
subject: FOS: Biological sciences

description: Additional file 1. Supplementary Table 1. Disease definition.
Additional file 1 of Prevalence and risk factors of hemodynamic instability associated with preload-dependence during continuous renal replacement therapy in a prospective observational cohort of critically ill patients
Creators: name: Chazot, Guillaume
name: Bitker, Laurent
name: Mezidi, Mehdi
name: Chebib, Nader
name: Chabert, Paul
name: Chauvelot, Louis
name: Folliet, Laure
name: David, Guillaume
name: Provoost, Judith
name: Yonis, Hodane
name: Richard, Jean-Christophe
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Virology
subject: Computational Biology

description: Additional file 1: Table S1. Description of data: missing values per variable.
Bubble number in a caviting flow
Creators: name: Gouin, Henri
name: Espanet, Laurent
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Physics (physics.class-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Cavitation is a general phenomenon of the fluid flows with obstacles. It appears in the cooling conduits of the fast nuclear engines. A model of this phenomenon using the theory of Laplace and a common non-convex energy for the liquid and vapour bulks is proposed. This model makes it possible to determine a higher limit of the density of bubbles (a number of bubbles per unit of volume in the flow). The maximum intensity of cavitation is associated with the mechanical and thermal characteristics of the fluid flow.
description: 9 pages
Graphs on surfaces and Khovanov homology
Creators: name: Champanerkar, Abhijit
name: Kofman, Ilya
name: Stoltzfus, Neal
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geometric Topology (math.GT)
subject: Combinatorics (math.CO)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 57M25, 57M15, 05C10

description: Oriented ribbon graphs (dessins d'enfant) are graphs embedded in oriented surfaces. A quasi-tree of a ribbon graph is a spanning subgraph with one face, which is described by an ordered chord diagram. We show that for any link diagram $L$, there is an associated ribbon graph whose quasi-trees correspond bijectively to spanning trees of the graph obtained by checkerboard coloring $L$. This correspondence preserves the bigrading used for the spanning tree model of Khovanov homology, whose Euler characteristic is the Jones polynomial of $L$. Thus, Khovanov homology can be expressed in terms of ribbon graphs, with generators given by ordered chord diagrams.
description: 8 pages, 5 figures
Additional file 1 of Association of sleep duration and sleep quality with overweight/obesity among adolescents of Bangladesh: a multilevel analysis
Creators: name: Anam, Md Rifat
name: Akter, Shamima
name: Hossain, Fahima
name: Bonny, Sharmin Quazi
name: Akter, Jahanara
name: Zhang, Cherri
name: Rahman, Md. Mizanur
name: Mian, Md. Abul Basher
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Student questionnaire
Characterization and Optimization of an Inline PV Module Flash Tester in Terms of Realistic Bifacial Module Assessment in the Manufacturing Line
Creators: name: Neumaier, L.
name: Mühleisen, W.
name: Frank, A.
name: Safran, G.
name: Hirschl, C.
Publisher: name: WIP
Year: 2019
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 1117-1120
description: Bifacial PV modules with their ability to use light on both sides of the solar cells offer a great potential for significantly increase the energy yield of PV. Despite the bifacial technology has established itself over the last years, a standardized characterization within the PV industry is still lacking, nevertheless the standard IEC TS 609041-2:2019 is already published. The goal of this research work is to utilize industrial equipment on-site as well as customized, relatively simple (fast and easy handling) characterization tools for repetitive measurements of the flash tester and furthermore bifacial modules in an industrial environment. Here, the focus is to follow the expectations defined by the standard, despite alternative methods and tools are used. In a first step, the flash tester as well as three sets of bifacial modules (different design/layout and cell types) were analyzed. In the future, a comparison with outdoor performance measurements and accredited laboratories will be conducted.
Universal behaviour of interfaces in 2d and dimensional reduction of Nambu-Goto strings
Creators: name: Billo, M.
name: Caselle, M.
name: Ferro, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We propose a simple effective model for the description of interfaces in 2d statistical models, based on the first-order treatment of an action corresponding to the length of the interface. The universal prediction of this model for the interface free energy agrees with the result of an exact calculation in the case of the 2d Ising model. This model appears as a dimensional reduction of the Nambu-Goto stringy description of interfaces in 3d, i.e., of the capillary wave model.
description: 14 pages, 1 figure
Life lived like a story : cultural constructions of life history by Tagish and Tutchone women
Creators: name: Cruikshank, Julie
Publisher: name: University of British Columbia
Year: 2012

description: This thesis is based on collaborative research conducted over ten years with three elders of Athapaskan/Tlingit ancestry, in the southern Yukon Territory, Canada Mrs. Angela Sidney, Mrs. Kitty Smith and Mrs. Annie Ned are also authors of this document because their oral accounts of their lives are central to the discussion. One volume examines issues of method and ethnographic writing involved in such research and analyses the accounts provided by these women; a second volume presents their accounts, in their own words, in three appendices. The thesis advanced here is that life history offers two distinct contributions to anthropology. As a method, it provides a model based on collaboration between participants rather than research 'by' an anthropologist 'on' the community. As ethnography, it shows how individuals may use the traditional dimension of culture as a resource to talk about their lives, and explores the extent to which it is possible f or anthropologists to write ethnography grounded in the perceptions and experiences of people whose lives they describe. Narrators provide complex explanations for their experiences and decisions in metaphoric language, raising questions about whether anthropological categories like 'individual', 'society' and 'culture' are uniquely bounded units. The analysis focusses on how these women attach central importance to traditional stories (particularly those with female protagonists), to named landscape features, to accounts of travel, and to inclusion of incidents from the lives of others in their narrated 'life histories'. Procedures associated with both life history analysis and the analysis of oral tradition are used to consider the dynamics of narration. Particular attention is paid to how these women use oral tradition both to talk about the past and to continue to teach younger people appropriate behavior in the present. The persistence of oral tradition as a system of communication and information in the north when so much else has changed suggests that expressive forms like story telling contribute to strategies for adapting to social, economic and cultural change.
Formation of the Small Magellanic Cloud: ancient major merger as a solution to the kinematical differences between old stars and HI gas
Creators: name: Bekki, Kenji
name: Chiba, Masashi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent observations of the Small Magellanic Cloud (SMC) have revealed that the HI gas shows a significant amount of rotation (V_c 60 km/s), while no or little rotation is evident for the old stellar populations. We suggest that this unique kinematical difference between these components in the SMC can be caused by a major merger event which occurred in the early stage of the SMC formation. Our simulations show that dissipative dwarf-dwarf merging can transform two gas-rich dwarf irregulars into a new dwarf, which consists of a spheroidal stellar component and a rotating extended HI disk. The remnant of this dwarf-dwarf merging shows significantly different kinematics between stars and gas, in the sense that a gas disk rotates rapidly while a stellar component shows little rotation. We thus suggest that the simulated dwarf having a dynamically hot spheroid and an extended gas disk finally evolves into the present SMC after efficient stripping of the outer gas via tidal fields of the Galaxy and the Large Magellanic Cloud. We also suggest that spatial distributions and kinematics of RGB and AGB stars with different ages in the possible spheroidal component of the SMC can provide valuable information on whether and when a past major merger event really occurred in the SMC.
description: 13 pages, 4 figures (three color), ApJL in press
GaN/AlN Quantum Dots for Single Qubit Emitters
Creators: name: Winkelnkemper, M.
name: Seguin, R.
name: Rodt, S.
name: Hoffmann, A.
name: Bimberg, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study theoretically the electronic properties of $c$-plane GaN/AlN quantum dots (QDs) with focus on their potential as sources of single polarized photons for future quantum communication systems. Within the framework of eight-band k.p theory we calculate the optical interband transitions of the QDs and their polarization properties. We show that an anisotropy of the QD confinement potential in the basal plane (e.g. QD elongation or strain anisotropy) leads to a pronounced linear polarization of the ground state and excited state transitions. An externally applied uniaxial stress can be used to either induce a linear polarization of the ground-state transition for emission of single polarized photons or even to compensate the polarization induced by the structural elongation.
description: 6 pages, 9 figures. Accepted at Journal of Physics: Condensed Matter
Impact of Trade Liberalization on Research and Development (R&D) Expenditures in the Philippines
Creators: name: Vidanes, Mary Joyce N.
name: Vidanes, Mary Joyce N.
Publisher: name: Unknown
Year: 2017
Subjects: subject: International Relations/Trade
subject: trade liberalization
subject: R&D
subject: Philippine manufacturing
subject: firm -level data

description: This paper examines the effects of tariff reductions endorsed under GATT-WTO and AFTA-CEPT on R&D expenditures of Philippine manufacturing firms. It also considers firm characteristics like exports, capital intensity, and size as explanatory factors. Using pooled firm-level data that are harmonized with the international nomenclatures for traded products, the results uphold that intensified competition from foreign players drive domestic firms to develop their production processes and products. Accordingly, the main findings of the paper reveal that reductions in MFN and ASEAN tariffs increase the growth rate of R&D within manufacturing firms. Likewise, a rising export share is associated with higher R&D growth rate and this is suggestive of how export profits further incentivizes firm innovation. The findings also link capital intensity and firm size to higher R&D growth rate. Overall, the results provide support for the role of tariff changes as conduits through which trade liberalization influences expenditure decisions of manufacturing firms.
Household Food Vulnerability Under an Extreme Weather Event in Sta. Cruz Subwatershed, Laguna, Philippines
Creators: name: Quilloy, Karen P.
name: Sumalde, Senaida M.
name: Roia, Agnes C.
name: Quilloy, Karen P.
name: Sumalde, Senaida M.
name: Roia, Agnes C.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: food security
subject: vulnerability
subject: extreme weather event
subject: climate impacts

description: This study is an assessment of the vulnerability of households to food insecurity under an extreme weather event. A subjective-qualitative technique primarily based on the perceived food security status of the households and their food insecurity coping strategies was used to examine household food vulnerability. Key findings reveal that households living in the vulnerable areas of Sta. Cruz subwatershed were generally resilient to extreme weather events and only suffered from slight to moderate form of food security problems. Impacts of extreme weather events on them were generally moderate but the highest impact was observed in their income sources, logistics, and assets or properties, all of which are important elements of an adequate access to food. While no severe form of food insecurity was found among the households, results of the food vulnerability analysis show that the likelihood of a household to fall under a state of food insecurity may rise under an extreme weather event if it fails to have an early warning system, adopt effective coping strategies against extreme events, and maintain adequate physical and economic access to food. With these, suggestions to improve mechanisms such as early warning system, public food distribution systems, food assistance programs, and capacity building on adaptation strategies and coping mechanisms for climate resilience and food production are recommended to help households ensure their food security in times of an extreme weather event.
Performance Assessment of Various PV Module Types under Desert Conditions through Device Simulations and Outdoor Measurements
Creators: name: Katsaounis, T.
name: Kotsovos, K.
name: Gereige, I.
name: Basaheeh, A.
name: Abdullah, M.
name: Khayat, A.
name: Al Habshi, E.
name: Al-Saggaf, A.
name: Tzavaras, A.
Publisher: name: WIP
Year: 2019
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 874-879
description: The Middle East region is considered as one the most promising areas for PV deployment due to its vast solar potential. Despite this fact, successful deployment of PV systems in the region is challenging due to local weather conditions. Dust storms are very frequent in these areas, which not only cause heavy soiling on PV module surface but may also significantly affect the form and intensity of the solar spectrum due to airborne dust particles which scatter sunlight. In addition, the combination of high ambient temperatures and increased irradiance levels pose additional challenges in PV module performance and reliability. Therefore, in this work a customized device simulator is proposed aiming to provide accurate calculations of PV module energy yield and performance using local climate data including solar radiation spectrum and temperature measurements. Simulation data are validated with outdoor IV measurements on various types of commercial c-Si based PV modules including polycrystalline Si and bifacial PERC, located at KAUST University at the Western Region of Saudi Arabia.Seasonal performance variations of various solar cell technologies due to local spectrum variations are also investigated.
The Impact of Dormant Defects on Defect Prediction: a Study of 19 Apache Projects
Creators: name: Falessi, Davide
name: Ahluwalia, Aalok
name: Di Penta, Massimiliano
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Defect prediction models can be beneficial to prioritize testing, analysis, or code review activities, and has been the subject of a substantial effort in academia, and some applications in industrial contexts. A necessary precondition when creating a defect prediction model is the availability of defect data from the history of projects. If this data is noisy, the resulting defect prediction model could result to be unreliable. One of the causes of noise for defect datasets is the presence of "dormant defects", i.e., of defects discovered several releases after their introduction. This can cause a class to be labeled as defect-free while it is not, and is, therefore "snoring". In this paper, we investigate the impact of snoring on classifiers' accuracy and the effectiveness of a possible countermeasure, i.e., dropping too recent data from a training set. We analyze the accuracy of 15 machine learning defect prediction classifiers, on data from more than 4,000 defects and 600 releases of 19 open source projects from the Apache ecosystem. Our results show that on average across projects: (i) the presence of dormant defects decreases the recall of defect prediction classifiers, and (ii) removing from the training set the classes that in the last release are labeled as not defective significantly improves the accuracy of the classifiers. In summary, this paper provides insights on how to create defects datasets by mitigating the negative effect of dormant defects on defect prediction.
description: arXiv admin note: substantial text overlap with arXiv:2003.14376
SDN Controllers - A Comparative approach to Market Trends
Creators: name: Neto, Francisco J. Badaró V.
name: Miguel, Constantino J.
name: Jesus, Ana Carla Dos S. De
name: Sampaio, Paulo N.M.
Publisher: name: Zenodo
Year: 2021
Subjects: SDN Controllers
Market
Market Trends

description: Presentation at Advance 2021 - 9th International Workshop on Advances in ICT Infrastructure and Services, held online due to the COVID-19 pandemic in Zaragoza, Spain. Objective of presenting our research (A literature review) on the market acceptance of SDN controllers and their characteristics. Software-Defined Networks (SDNs) have been used in the last decade as a solution to provide greater flexibility in controlling traffic being distributed over a network, promoting the reuse and optimization of network resources. SDN´s architecture decouples routing intelligence (Control Plane) from routing functions (Data Plan/Forwarding Plane), through a component called SDN controller which centralizes the Control Plane. Therefore, it is required that the controller´s performance and functions provide an optimal integration with both Forwarding Devices (Network Elements) and with the support to new applications to be proposed within the context of software-defined network paradigm. Nevertheless, the rapid development of this paradigm and the increasing availability of different controllers within the market makes it difficult to choose a suitable one. This paper compares briefly the top six SDN controllers according to the market preference, looking not only to unveil some theoretical aspects but also to have an insight about their market acceptance.
BLOX: The Bonn Lensing, Optical, and X-ray selected galaxy clusters -- I. Cluster catalog construction
Creators: name: Dietrich, J. P.
name: Erben, T.
name: Lamer, G.
name: Schneider, P.
name: Schwope, A.
name: Hartlap, J.
name: Maturi, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The mass function of galaxy clusters is an important cosmological probe. Differences in the selection method could potentially lead to biases when determining the mass function. From the optical and X-ray data of the XMM-Newton Follow-Up Survey, we obtained a sample of galaxy cluster candidates using weak gravitational lensing, the optical Postman matched filter method, and a search for extended X-ray sources. We developed our weak-lensing search criteria by testing the performance of the aperture mass statistic on realistic ray-tracing simulations matching our survey parameters and by comparing two filter functions. We find that the dominant noise source for our survey is shape noise at almost all significance levels and that spurious cluster detections due to projections of large-scale structures are negligible, except possibly for highly significantly detected peaks. Our full cluster catalog has 155 cluster candidates, 116 found with the Postman matched filter, 59 extended X-ray sources, and 31 shear selected potential clusters. Most of these cluster candidates were not previously known. The present catalog will be a solid foundation for studying possible selection effects in either method.
description: Accepted for publication in Astronomy & Astrophysics, 14 pages, 5 figures. The cluster catalogs are available at http://www.eso.org/~jdietric/publications.html
A Solar Cell with Switchable Colour
Creators: name: Neugebohrn, N.
name: Götz, M.
name: Gehrke, K.
name: Vehse, M.
name: Agert, C.
Publisher: name: WIP
Year: 2019
Subjects: PV Applications and Integration
PV on/in Buildings, Infrastructure, Landscape, Water and Nature

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 1838-1841
description: An important aspect for the acceptance of building integrated photovoltaics is the aesthetics. So far, the research in this field has been focused on realizing coloured photovoltaic modules. In this contribution, a thin film solar cell with switchable colour is presented. A gasochromic Pd/Mg film is combined with a conductive optical resonator. The gasochromic film can be switched via hydrogenation and dehydrogenation between the metallic and dielectric state, which drastically changes its optical properties. The switching changes the reflected light due to the interaction with the optical resonator below the Pd/Mg film. The optical resonator consists of two oxide layers with a metal layer sandwiched in-between. The latter provides lateral conductivity, which enables the integration of the complete stack as a front contact for a solar cell. In this work, the concept of a functionalized front contact with switchable colour will be demonstrated by optical simulations as well as optical and electrical measurements of the solar cell.
Additional file 2 of Prevalence and risk factors of hemodynamic instability associated with preload-dependence during continuous renal replacement therapy in a prospective observational cohort of critically ill patients
Creators: name: Chazot, Guillaume
name: Bitker, Laurent
name: Mezidi, Mehdi
name: Chebib, Nader
name: Chabert, Paul
name: Chauvelot, Louis
name: Folliet, Laure
name: David, Guillaume
name: Provoost, Judith
name: Yonis, Hodane
name: Richard, Jean-Christophe
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Virology
subject: Computational Biology

description: Additional file 2: Figure S1. Description of data: percentage of patients remaining in study during the first 7 days after inclusion.
Wearable and Washable Photovoltaic Fabrics
Creators: name: Satharasinghe, A.
name: Hughes-Riley, T.
name: Dias, T.
Publisher: name: WIP
Year: 2019
Subjects: New Materials and Concepts for Photovoltaic Devices
New Materials and Concepts for Cells and Modules

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 42-45
description: This work presents a novel solar energy harvesting fabric that can power wearable and mobile electronic devices in a robust, user-friendly, and sustainable manner. The fabric was realised by weaving miniature solar cell embedded textile yarns (solar-E-yarns) fabricated using the Electronic yarn (E-yarn) technology. The fabric (44.5 mm × 45.5 mm active area) can generate a maximum power density of 2.15mW/cm2 under one sun (1000 W/m2) solar illumination and looks and feels like a normal textile; it is soft, three dimensionally conformable, breathable and moisture absorbing. It is also capable of undergoing machine laundering, which has not previously been reported by a textile solar energy harvesting solution for wearable applications in the literature. The fabric can be rolled and is lightweight, making it desirable for mobile and off-the-grid energy needs.
Probability in relativistic Bohmian mechanics of particles and strings
Creators: name: Nikolic, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Even though the Bohmian trajectories given by integral curves of the conserved Klein-Gordon current may involve motions backwards in time, the natural relativistic probability density of particle positions is well-defined. The Bohmian theory predicts subtle deviations from the statistical predictions of more conventional formulations of quantum theory, but it seems that no present experiment rules this theory out. The generalization to the case of many particles or strings is straightforward, provided that a preferred foliation of spacetime is given.
description: 12 pages, version accepted for publication in Found. Phys
Output Characteristics of Thin-Film Solar Cells in Various Greenhouse Installation Setups
Creators: name: Hirata, Y.
name: Watanabe, Y.
Publisher: name: WIP
Year: 2019
Subjects: PV Applications and Integration
PV on/in Buildings, Infrastructure, Landscape, Water and Nature

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 1842-1846
description: At present, research on compatibility between solar power generation and agriculture is proceeding. Recently, both solar power generation and agriculture have been balanced in the form of solar sharing. However, it is a challenge to ensure that the installation cost and the installation method do not hinder the cultivation of agricultural crops. What is being considered is compatibility between solar power generation using organic photovoltaics (OPVs) and agriculture. In this research, we assume the installation of a film photovoltaic module on a tunnel-shaped mesh over a grapevine trellis. The grapevine actively carries out photosynthesis in the morning but little photosynthesis in the afternoon. To improve the quality of the grapes, shading from the western sun and a protective covering against rain are desired. The vinyl greenhouse of various azimuth were assumed and the outputs on curved surfaces of a tunnelshaped mesh were estimated. These value were proved to be the measured outputs of amorphous film photovoltaic module on curved surfaces.
Στρατηγικό μάνατζμεντ και ανταγωνιστικό πλεονέκτημα εταιρείας στον κλάδο των αερογραμμών: μελέτη περίπτωσης
Creators: name: Σεβαστός, Νικόλαος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Στρατηγικό μάνατζμεντ
subject: Ανταγωνιστικό πλεονέκτημα
subject: Κλάδος αερομεταφορών
subject: Στρατηγική κόστους

description: Στην παρούσα εργασία έγινε αναπαραγωγή της έννοιας της στρατηγικής και πιο συγκεκριμένα στον κλάδο των αερομεταφορών και μια μελέτη περίπτωσης για την Ryanair. Πιο συγκεκριμένα, στο πρώτο κεφάλαιο περιγράφεται η έννοια του Στρατηγικού Μάνατζμεντ ,τα οφέλη του και οι φάσης του. Στη συνέχεια, στο δεύτερο κεφάλαιο αναπτύσσονται εκτενώς τα είδη των στρατηγικών και κυρίως οι επιχειρησιακές στρατηγικές και πως λειτουργούν στις επιχειρήσεις. Το τρίτο κεφάλαιο παρουσιάζει την ιστορία και τα οικονομικά στοιχεία του κλάδου των αερομεταφορών από την αρχή της πορείας του μέχρι σήμερα και την εξάρτηση του από τις Κυβερνήσεις. Στο τέταρτο κεφάλαιο υπογραμμίζεται η στρατηγική ανάλυση του κλάδου των αερομεταφορών και πιο συγκεκριμένα οι πολιτικές των εταιρειών, ο ανταγωνισμός μεταξύ των εταιρειών και η ανάλυση του εσωτερικού και εξωτερικού περιβάλλοντος. Τέλος στο πέμπτο κεφάλαιο πραγματοποιήθηκε η ανάλυση της στρατηγικής χαμηλού κόστους των αεροπορικών επιχειρήσεων και μελέτη περίπτωσης της Ryanair.
Non-substitutional single-atom defects in the Ge_(1-x)Sn_x alloy
Creators: name: Ventura, C. I.
name: Fuhr, J. D.
name: Barrio, R. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Ge_(1-x)Sn_x alloys have proved difficult to form at large x, contrary to what happens with other group IV semiconductor combinations. However, at low x they are typical examples of well-behaved substitutional compounds, which is desirable for harnessing the electronic properties of narrow band semiconductors. In this paper, we propose the appearance of another kind of single-site defect ($β-Sn$), consisting of a single Sn atom in the center of a Ge divacancy, that may account for these facts. Accordingly, we examine the electronic and structural properties of these alloys by performing extensive numerical ab-initio calculations around local defects. The results show that the environment of the $β$ defect relaxes towards a cubic octahedral configuration, facilitating the nucleation of metallic white tin and its segregation, as found in amorphous samples. Using the information stemming from these local defect calculations, we built a simple statistical model to investigate at which concentration these $β$ defects can be formed in thermal equilibrium. These results agree remarkably well with experimental findings, concerning the critical concentration above which the homogeneous alloys cannot be formed at room temperature. Our model also predicts the observed fact that at lower temperature the critical concentration increases. We also performed single site effective-field calculations of the electronic structure, which further support our hypothesis.
description: 12 pages, 1 table, 16 figures
Development of Inhomogeneities in Multi-Crystalline Silicon PV Modules over Two Years of Real Operating Conditions
Creators: name: Bokalic, M.
name: Brecl, K.
name: Topic, M.
Publisher: name: WIP
Year: 2019
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 844-848
description: We track the evolution of inhomogeneities in the 17 kW multi-crystalline silicon PV array between years 6 and 8 of operation. For the second inspection, we modified imaging setup (electroluminescence, UV fluorescence and visual) for in-situ measurements. The majority of inhomogeneities further developed during this period, however the performance ratio degradation was -0.55%/a which is normal. Disconnected areas developed in 7% of the modules, but their effect was small and we even noticed reconnection of some disconnected areas. Cracks developed in 41% of the modules, but the total crack length increased for only 6%. UV fluorescence images were helpful at determining their age. Contact finger interruptions change was present in every module and the total area affected by them increased for 34%. Unexpectedly, ordered dark dots also became visible or more pronounced in 12% of the modules and shading between them became significantly more visible in 13% of the modules. We also noticed some other inhomogeneity changes.
APLICAÇÃO DE DTN EM FERROVIAS DA MALHA BRASILEIRA
Creators: name: ANABEL BRITO DE SANTANA
name: NETO, FRANCISCO JOSE BADARÓ VALENTE
Publisher: name: Zenodo
Year: 2021
Subjects: Delay
Redes
Sensores
DTN

description: Redes Tolerantes a Atraso possibilitam um tráfego de dados em regiões onde existam, problemas de cobertura de rede convencional, onde enormes distâncias resultam em rotas fim-a-fim possíveis com grande atraso nas comunicações. Este trabalho propõe a utilização de redes DTN para integrar o sistema sensorial e pontos estratégicos integrados à rede de Centros de Controle Operacionais para viabilizar a comunicação sensorial, e de telemetria do sistema primário de linha férrea. Essas redes trabalham com diversos protocolos que fazem a transmissão de dados no formato guarda-e-envia, onde ao menos um dos nós ao longo da rota de transmissão possui a custódia da mensagem, e deixa guardada em sua memória uma cópia. Em redes DTN, quando uma conexão é interrompida, ou a mensagem não chegar ao seu destino, é possível restabelecer a conexão a partir de um novo ponto que possua uma cópia da mensagem, não necessariamente o nó origem, tornando as comunicações mais resilientes. O uso de redes DTN para suprir falhas de cobertura no sistema sensorial de linhas férreas diminui a necessidade de investimento em uma rede continua e, traz um ganho significativo na entrega de dados e mensagens, auxiliando os controladores a tomarem medidas preventivas ou paliativas com relação à segurança de todo o sistema e populações que vivem ao entorno dessas vias. Vias as quais se encontram em locais geograficamente remotos onde não há cobertura de redes de telecomunicações, dificultando assim o gerenciamento dos elementos sensoriais das linhas férreas. Com a aplicação de redes DTN para estes sistemas, as enormes áreas sem cobertura de operadoras ou rede de telecomunicações passa a ter viabilidade devido ao uso das técnicas de transmissões em redes tolerantes a atrasos. O objetivo desse trabalho é a elaboração de uma simulação aplicando redes DTN à malha ferroviária brasileira.
Additional file 3 of Prevalence and risk factors of hemodynamic instability associated with preload-dependence during continuous renal replacement therapy in a prospective observational cohort of critically ill patients
Creators: name: Chazot, Guillaume
name: Bitker, Laurent
name: Mezidi, Mehdi
name: Chebib, Nader
name: Chabert, Paul
name: Chauvelot, Louis
name: Folliet, Laure
name: David, Guillaume
name: Provoost, Judith
name: Yonis, Hodane
name: Richard, Jean-Christophe
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Virology
subject: Computational Biology

description: Additional file 3: Table S2. Description of data: risk factors for occurrence of HIRRT associated with preload-dependence in univariate analysis.
Explicit Model Based on Approximated I-V Curves for Partial Shading Modelling of Photovoltaic Systems
Creators: name: Dallapiccola, M.
name: Ingenhoven, P.
name: Lovati, M.
name: Moser, D.
Publisher: name: WIP
Year: 2019
Subjects: PV Systems and Storage – Modelling, Design, Operation and Performance
Design and Installation of PV Systems

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 1492-1496
description: The effect of by-pass diodes in case of partial shading of PV systems is usually not included in long-term calculations or in optimization algorithms due to the complexity of the equations involved. The effects of partial shading are particularly relevant in unconventional applications such as urban PV. The aim of this work is to present a simple model which can be used both for systems with series and parallel connected modules. For the sake of usability, especially in case of optimization algorithms or complex lighting scenarios, it is necessary to reduce the computational time required for the yield calculation. The model is based on the combination of module individual approximated I-V curves to reproduce the connections of real systems. The model was verified comparing the results with the ones obtained with an electrical circuit simulator.
Additional file 1 of A scoping review examining the integration of exercise services in clinical oncology settings
Creators: name: Ezenwankwo, Elochukwu F.
name: Nnate, Daniel A.
name: Usoro, Godspower D.
name: Onyeso, Chimdimma P.
name: Anieto, Ijeoma B.
name: Ibeneme, Sam C.
name: Albertus, Yumna
name: Lambert, Victoria E
name: Ezeukwu, Antoninus O.
name: Abaraogu, Ukachukwu O.
name: Shamley, Delva
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1. Initial search strategy in PubMed.
Unifying variational methods for simulating quantum many-body systems
Creators: name: Dawson, Christopher M.
name: Eisert, Jens
name: Osborne, Tobias J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We introduce a unified formulation of variational methods for simulating ground state properties of quantum many-body systems. The key feature is a novel variational method over quantum circuits via infinitesimal unitary transformations, inspired by flow equation methods. Variational classes are represented as efficiently contractible unitary networks, including the matrix-product states of density matrix renormalization, multiscale entanglement renormalization (MERA) states, weighted graph states, and quantum cellular automata. In particular, this provides a tool for varying over classes of states, such as MERA, for which so far no efficient way of variation has been known. The scheme is flexible when it comes to hybridizing methods or formulating new ones. We demonstrate the functioning by numerical implementations of MERA, matrix-product states, and a new variational set on benchmarks.
description: 5 pages, 3 figures, replaced with published version
Additional file 1 of Impact of platelet transfusion on outcomes in trauma patients
Creators: name: Hamada, S. R.
name: Garrigue, D.
name: Nougue, H.
name: Meyer, A.
name: Boutonnet, M.
name: Meaudre, E.
name: Culver, A.
name: Gaertner, E.
name: Audibert, G.
name: Vigué, B.
name: Duranteau, J.
name: Godier, A.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Table S1: Multivariate logistic regression analysis: predictors of 24-h all-cause mortality (on complete cases from the whole cohort, n = 12278). All p values < 10−6
Directional States of Symmetric-Top Molecules Produced by Combined Static and Radiative Electric Fields
Creators: name: Härtelt, Marko
name: Friedrich, Bretislav
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: We show that combined electrostatic and radiative fields can greatly amplify the directional properties, such as axis orientation and alignment, of symmetric top molecules. In our computational study, we consider all four symmetry combinations of the prolate and oblate inertia and polarizability tensors, as well as the collinear and perpendicular (or tilted) geometries of the two fields. In, respectively, the collinear or perpendicular fields, the oblate or prolate polarizability interaction due to the radiative field forces the permanent dipole into alignment with the static field. Two mechanisms are found to be responsible for the amplification of the molecules' orientation, which ensues once the static field is turned on: (a) permanent-dipole coupling of the opposite-parity tunneling doublets created by the oblate polarizability interaction in collinear static and radiative fields; (b) hybridization of the opposite parity states via the polarizability interaction and their coupling by the permanent dipole interaction to the collinear or perpendicular static field. In perpendicular fields, the oblate polarizability interaction, along with the loss of cylindrical symmetry, is found to preclude the wrong-way orientation, causing all states to become high-field seeking with respect to the static field. The adiabatic labels of the states in the tilted fields depend on the adiabatic path taken through the parameter space comprised of the permanent and induced-dipole interaction parameters and the tilt angle between the two field vectors.
Performance anxiety in professional musicians: a systematic review on prevalence, risk factors and clinical treatment effects
Creators: name: Fernholz, Isabel
name: Mumm, Jennifer L. M.
name: Plag, Jens
name: Noeres, Katharina
name: Rotter, Gabriele
name: Willich, Stefan N.
name: Ströhle, Andreas
name: Berghöfer, Anne
name: Schmidt, Alexander
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2021
Subjects: subject: incidence
subject: music performance anxiety
subject: prevalence
subject: risk factors
subject: social anxiety disorder
subject: stage fright
subject: therapy
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Music performance anxiety (MPA) is one of the most common disorders among professional musicians, nevertheless, little is known about the disease. With this systematic review, prevalence, risk factors and treatment procedures for MPA were assessed, and for the first time, quality assessments were carried out for all studies using standardized assessment tools. A systematic literature search was conducted via search algorithms in the databases MEDLINE, EMBASE, CINAHL, PsycArticles, PsycInfo and ERIC. Included were case reports, case-control, cohort, cross-sectional and intervention studies examining professional musicians with MPA. For quality assessment, adapted tools of the National Heart, Lung, and Blood Institute were used. A total of 43 studies were included (10 case reports, 21 intervention, 11 cross-sectional, one cohort study). Quality ratings ranged from -11 to 6 out of a maximum of 15/16 points for cross-sectional/cohort studies and -4 to 11 out of 18 points for intervention studies. The prevalence of MPA was between 16.5% and 60%. More women than men were affected and musicians older than 45-50 years reported less MPA than younger musicians. Regarding treatment cognitive behavioural therapy (CBT) and β-blockers were most often researched with beneficial results for CBT. However, studies with adequate control groups for CBT interventions are needed to clarify its efficacy. Studies showed methodological weaknesses, especially in the selection of participants, recording of influencing factors, blinding of interventions, randomization of participants and analysis of comorbidity. Recommendations for further research are made.