cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Comparison of Echolocation Abilities of Blind and Normally Sighted Humans using Different Source Sounds
Creators: name: Bujacz, Michał
name: Skulimowski, Piotr
name: Królak, Aleksandra
name: Sztyler, Bartłomiej
name: Strumiłło, Paweł
Publisher: name: Publishing House of Poznan University of Technology
Year: 2022

description: Vibrations in Physical Systems, 33(2), 2022213-1 - 2022213-5
Emergence of long-range order in BaTiO3 from local symmetry-breaking distortions
Creators: name: Senn, M. S.
name: Keen, D. A.
name: Lucas, T. C. A.
name: Hriljac, J. A.
name: Goodwin, A. L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: By using a symmetry motivated basis to evaluate local distortions against pair distribution function data (PDF), we show without prior bias, that the off-centre Ti displacements in the archetypal ferroelectric BaTiO3 are zone centred and rhombohedral-like in nature across its known ferroelectric and paraelectric phases. With our newly-gained insight we construct a simple Monte Carlo (MC) model which captures our main experimental findings and demonstrate how the rich crystallographic phase diagram of BaTiO3 emerges from correlations of local symmetry-breaking distortions alone. Our results strongly support the order-disorder picture for these phase transitions, but can also be reconciled with the soft-mode theory of BaTiO3 that is supported by some spectroscopic techniques.
description: 5 pages, 3 figures
Cryopreservation & transplantation of ovarian tissue from the common marmoset (Callithrix jacchus)
Creators: name: Choo, Boon Siong.
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.
Performance Comparison of PV Module Based on Temperature Coefficient in Indoor and Outdoor Conditions as per IEC 61853-1
Creators: name: Morampudi, M.
name: Bora, B.
name: Kumar Jha, G.
name: Kumar, R.
name: Siddiqui, R.
name: Lata Panchal, S.
name: Gowri, G.
name: Dubey, B.
name: Rajput, P.
name: Raghava, S.
name: Singh, M.
name: Vyas, 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; 2067-2069
description: IIn real world energy scenario, photovoltaic module power generation from laboratory test conditions to field conditions vary irrespective of capacity derived from energy rating of module as per IEC 61853-1 standard. Performance consistency over linearity of module at different irradiance levels enables the precise comparison of measured data at both indoor and outdoor test conditions. Hence the current research on irradiation and thermal impact over photovoltaic module is intended to analyse through indoor simulated and outdoor realistic performance based on 23 test conditions of IEC 61853-1” with deviation in terms of percentage relative temperature coefficients.
Design and Analysis of 10MWp Grid Connected PV System Installed West Kuwait
Creators: name: Abdullah, H.
name: Kamel, R.
name: El-Sayed, M.
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; 2055-2063
description: A 10MWp PV grid connected system is modelled for Kuwait Oil Company (KOC). The system will contribute in the reduction of the peak demands that happen in summer. This research studies the effect of Kuwait temperature on the performance of photovoltaic power plant to provide guidelines for future projects in Kuwait. System performance is evaluated for different array orientations by analyzing the monthly and annual energy and losses for each orientation. The optimal tilt angle is obtained for each month. Having a seasonal tilt angle will do the job of a tracker with less performance by 1.4%. The annual capacity factor for the system with a tracker is 19.48% and the yield factor is 1697 kWh/kWp/year. PV system is modelled in matlab and load flow analysis is performed for KOC grid utility before and after connecting the PV plant. The plant is studied at high PV penetration with different voltages and loading conditions. PV inverter var potential and control is demonstarted. Volatge regulation is better achieved at conditions of high upstream voltages than lower. The proposed PV plant contribution to KOC's annual consumption is 29%. Such work is helpful for PV technology utilization and integration in Kuwait.
Performance Analysis of Different Thin Film Module Technology in Indian Climatic Condition
Creators: name: Singh, Y.K.
name: Bora, B.
name: Singh, R.
name: Chakravarty, S.
name: Sastry, O.S.
name: Singh, R.
name: Rai, 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; 2064-2066
description: The potential of solar power across the country is more than 740 GW. Performance of module technology also depends on the different parameters such as irradiance, temperature, wind speed, humidity and rain fall. The photovoltaic simulation tools are useful for energy estimation of solar systems. This paper presents the performance assessment of small capacity grid connected solar photovoltaic system (GCSPVS) using PV* SOL software [1, 2]. Simulation software are used to estimate the performance of GCSPVS by calculating the performance ratio using PV* SOL software. This paper present’s PR estimation of three thin film modules CdTe, CIGS and a-Si-H modules for different climatic zones. The performance modelling data is compared with the measured data to compare the estimation error.
Global Method for Calculating Location Specific MPP Tracking Losses Using Available Weather Statistics
Creators: name: Egler, M.
name: Gordon, S.
name: Yim, P.
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; 2001-2006
description: The fraction of site-specific annual static irradiation conditions varies significantly between different
locations and subsequently leads to variations in annual inverter Maximum-Power-Point-Tracking (MPPT) losses.
However, there is a lack of a global method to estimate this loss in a project specific manner within PV energy yield
studies.
On the basis of EN 50530:2010 MPPT efficiency definitions and worldwide weather statistics obtained from Baseline
Surface Radiation Network (BSRN) records, a linear correlation between the annual ratio of Diffuse to Global
Horizontal Irradiation (DHI/GHI) and static irradiance conditions has been found. DHI and GHI are standard
information in state-of-the-art yield calculations.
Using DHI/GHI, site- and product-specific annual MPPT losses are estimated assuming MPP Tracking efficiencies
corresponding with different levels of industry standard inverters. The results display how PV energy yield studies
can become more site- and product-specific.
aIR-PV-Check of Thin-Film PV-Plants – Detection of PID and Other Defects in CIGS Modules
Creators: name: Buerhop-Lutz, C.
name: Pickel, T.
name: Scheuerpflug, H.
name: Dürschner, C.
name: Camus, C.
name: Hauch, J.
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; 2021-2026
description: The on-site inspection of solar farms with infrared cameras from the air using unmanned aerial
vehicles (UAVs) is called aIR-PV-check. Applying this method with a sophisticated image processing
enables the quality control of installed thin-film PV-modules. Various module defects can be detected and
visualized based on their elevated temperature. There are modules with cracks and ones affected by
potential induced degradation PID. The IR-imaging data correspond well with EL-images and electrical
data. Thus, modules with slightly elevated temperature - typical for PID modules - appear damaged in the
EL-images as well as in their electrical behavior. Furthermore, modules with different power classes can
be located. Therefore, IR-imaging is a fast and suitable technique to detect PID and other features in
installed CIGS modules.
The role of specific Chinese herbal medicine in the management of vasomotor symptoms in Australian postmenopausal women
Creators: name: Chen, Run Qiu.
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.
D5.7 CROSS-SECTOR POLICY LIFECYCLE MANAGEMENT: SOFTWARE PROTOTYPE 3
Creators: name: Duzha, Armend
name: Maglogiannis, Ilias
name: Moutselos, Kostas
name: Garcia, Luis Miguel
name: Gallego, Jesús Manuel
name: Kranas, Pavlos
name: Maragkos, Chris
name: Mpetas, Stelios
name: Pontual, Ana Luiza
name: Prat, Miquel Mila
Publisher: name: Zenodo
Year: 2022
Subjects: Policy Cloud
policymaking
data driven
policy management
big data
policy lifecycle

description: This document is the third and final update of deliverable Cross-sector Policy Lifecycle Management: Software Prototype, whose first two versions were delivered respectively in November 2020 and October 2021. It describes in detail the software components of the Policy Management Framework Layer and Policy Development Toolkit Layer, which are the frontend parts of the PolicyCLOUD platform and allow policy makers to create, update and evaluate policies. For each component, a description of its APIs, specification of the main functionalities, and description of the source code are provided.
description: This deliverable is submitted to the EC, not yet approved.
IR-Imaging a Tracked PV-Plant Using an Unmanned Aerial Vehicle
Creators: name: Buerhop-Lutz, C.
name: Scheuerpflug, H.
name: Pickel, T.
name: Camus, C.
name: Hauch, J.
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; 2016-2020
description: The on-site inspection of solar farms with infrared cameras from the air using unmanned aerial vehicles
UAVs is called aIR-PV-check. A 2.4 MW PV-tracking system with more than 200 arrays was IR-inspected. 75% of
the trackers had defective modules, which corresponds to more than 8% of the modules. Fairly high temperatures
above 80°C were often measured at defects. The spatial distribution of the modules within the tracker plane was
studied. Statistical data evaluation shows that more defective modules are found in the upper half. For the vertical
failure distribution one maximum exists in the center, whereas for the horizontal dimension two maxima are present.
One explanation may be the considerably high wind loads at the installation spot in context with the stiffness of the
tracker system construction. It is shown that IR-inspection is a suitable method to reveal failures in tracking PVsystems
where monitoring data fail for various reasons.
Selection Criteria of PV Technology Based on Location
Creators: name: Kumar Jha, G.K.
name: Kumar, R.
name: Dash, P.K.
name: Siddiqui, R.
name: Gowri, G.
name: Morampudi, M.
name: Lata Panchal, S.
name: Raghava, S.
name: Rajput, P.
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; 2030-2032
description: The suitability of a PV technology for a particular site depends on five major factors like annual solar intensity distribution, annual temperature distribution, efficiency of PV module, module temperature coefficients, variations in the Sun spectrum distribution and rate of power degradation in the PV modules with time. The PV technologies which are used in this study are mono, multi crystalline silicon, amorphous silicon single junction, micro crystalline amorphous silicon, CdTe, and Interdigitated Back contact (Maxeon) and Hetero-Junction with thin Intrinsic (HIT) layer technologies. A detailed comparison of PV technologies has been done by using indoor and outdoor conditions. The outdoor performance of these modules are evaluated by using the outdoor test bed established in NISE and the efficiencies are estimated as a function of intensity under indoor conditions by using Endeas, Quicksun 700A single pulse sun simulator. This paper presents the details of the work carried out and the understanding of the performance of the above technologies in terms of performance ratio and utilization fraction.
Simultaneous Determination of Thermal Conductivity and Heat Capacity in Thin Films with Picosecond Transient Thermoreflectance and Picosecond Laser Flash
Creators: name: Ye, Zefang
name: Park, Janghan
name: Zhang, Yanyao
name: Meng, Xianghai
name: Disiena, Matthew
name: Banerjee, Sanjay K.
name: Lin, Jung-Fu
name: Wang, Yaguo
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Astronomical and Space Sciences not elsewhere classified
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Hematology

description: Combining the picosecond transient thermoreflectance (ps-TTR) and picosecond laser flash (ps-LF) techniques, we have developed a novel method to simultaneously measure the thermal effusivity and the thermal diffusivity of metal thin films and determine the thermal conductivity (κ) and the heat capacity (cv) altogether. In order to validate our approach and evaluate the uncertainties, we analyzed five different metal films (Al, Cr, Ni, Pt, and Ti) with thicknesses ranging from 297 nm to 1.2 µm. Our results on thermal transport properties and heat capacity are consistent with reference values, with the uncertainties for the thermal conductivity and the heat capacity measurements below 25% and 15%, respectively. Compared with the ps-TTR technique alone, the combined approach substantially lowers the uncertainty of the thermal conductivity measurement. Uncertainty analyses on various materials show that this combined approach is capable of measuring most of the materials with a wide range of thicknesses, including those with low thermal conductivity (e.g., mica) down to thicknesses as small as 60 nm and ultrahigh thermal conductivity materials (such as cubic BAs) down to 1400 nm. Simultaneous measurement of thermal conductivity and heat capacity enables exploration of the thermal physical behavior of materials under various thermodynamic and mechanical perturbations, with potential applications in thermal management materials, solid-state phase transitions, and beyond.
Investigation of changes in blood pressure and heart rate as brainstem versus cortical indices of disturbed sleep in children and adults with obstructive sleep apnoea (OSA)
Creators: name: Tarquinio, Natalie.
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.
Umformung mittels vaporisierender Aktuatoren: Experimente und Modellierung
Creators: name: Hahn, Marlon
Publisher: name: TU Dortmund
Year: 2023
Subjects: subject: Blechumformung
subject: Dynamik
subject: Charakterisierung
subject: Simulation
subject: 620
subject: 670
subject: Blechumformen
subject: Dynamisches Verhalten
subject: Aktor
subject: Numerisches Modell
subject: Finite-Elemente-Methode
subject: Druckverteilung
subject: Simulation

description: Bei der dynamischen Blechumformung mittels vaporisierender Aktuatoren wird versucht die gewaltvolle Expansion einer metallischen Folie zu nutzen, die entsteht, wenn ein hoher Kondensatorentladestrom diese binnen kürzester Zeit bis in die Gasphase erhitzt. Zwar sind für diesen durchaus flexiblen Prozess einige Anwendungen und experimentelle Grundlagenuntersuchungen bekannt, einen allgemeinen makroskopischen Modellierungsansatz gab es bisher jedoch noch nicht. Deshalb werden in dieser Arbeit derartige Ansätze erarbeitet, die sowohl das physikalische Prozessverständnis erhöhen als auch eine vollständige Prozessauslegung ermöglichen. Dazu werden zwei aufeinanderfolgende Teilprozesse getrennt betrachtet; zuerst die elektrische Energieeinbringung in den Folienaktuator bis zum sogenannten Berstpunkt, dann die eigentliche mechanische Werkstückumformung. Um letztlich eine rein prediktive Berechnung zu gewährleisten, werden zunächst Experimente durchgeführt, die v. a. die Etablierung eines Aktuatorwerkstoffgesetzes ermöglichen, das jegliche Prozessparametereinflüsse auf die erreichbare Energieeinbringung widerspiegeln kann. Nach einer diesbezüglichen numerischen Analyse wird schließlich ein analytisches Modell für die Vorhersage der Energieeinbringung entwickelt. Jene Energieeinbringung bestimmt als Anfangsbedingung für die Simulation des zweiten Teilprozesses den Berst- bzw. Vaporisationsdruck. Dieser wird impulsartig auf das Blech übertragen, wodurch die u. a. dehnratenabhängige und aufgrund der Trägheit inhomogene Umformung voranschreitet. Der gasförmig expandierende Aktuator wird dabei mit einer netzfreien Partikelmethode modelliert, während die damit interagierenden Festkörper der Finite-Elemente-Methode genügen. Zuvor mittels speziellem Laser bei freier Umformung gemessene Geschwindigkeits- bzw. Verschiebungsverläufe von Stahlblechen validieren den gewählten Modellierungsansatz, womit nun ein durchgängiges Prozessmodell zur Verfügung steht. Zudem werden räumlich flexible Vaporisationsdruckverteilungen mithilfe eines weiter vereinfachten Umformmodells evaluiert und bauteilbezogen optimiert. Im Rahmen einer beispielhaften, experimentellen Umsetzung werden unter Zuhilfenahme der Analytik erstmals zwei unterschiedliche Vaporisationsbereiche - d. h. Aluminiumfolien - für die Ausformung unterschiedlicher, verbundener Bauteilhöhen parallel geschaltet. Abschließend werden noch Konzepte aufgezeigt, die zum einen die Flexibilität und zum anderen die Berechnungseffektivität des noch jungen Fertigungsverfahrens weiter steigern könnten.
description: Dortmunder Umformtechnik;119
Thermal decay rate of a metastable state with two degrees of freedom: dynamical modeling versus approximate analytical formula
Creators: name: Gontchar, Igor
name: Chushnyakova, Maria
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Accuracy of the Kramers approximate formula for the thermal decay rate of the metastable state is studied for the two-dimensional potential pocket. This is done by the comparison with the quasistationary rate resulting from the dynamical modeling. It is shown that the Kramers rate is in agreement with the quasistationary rate within the statistical errors provided the absorptive border is far enough from the potential ridge restricting the metastable state. As the absorptive border (or its part) gets closer to the ridge the Kramers formula underestimate the quasistationary rate. The difference reaches approximately the factor of 2 when the absorptive border coincides with the ridge.
description: 12 pages, 13 figures
Cell to Module Losses of an MWT Module
Creators: name: Slooff, L.H.
name: Bende, E.E.
name: Jansen, M.J.
name: Okel, L.A.G.
name: Danzl, F.J.K.
name: Manshanden, P.
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; 2007-2010
description: The efficiency of photovoltaic modules is for a large part determined by the solar cell efficiency, but
the electrical losses from current transport between the cells and to the module contacts, and optical losses also play
an important role. In order to investigate the losses in the module the Cell to Module (CtM) ratio is often used. It is
determined by the ratio in performance between the module and the cell and gives an indication of the electrical and
optical losses in the module. In principle this seems a straightforward approach. However, a good CtM measurement
is not as trivial as it seems. Many factors play a role. Not only the way the measurement is done, but also which
parameters are used for the cell in the comparison. After all, a module consists of many cells that are all slightly
different. The various aspects in measurement and their influence on the CtM ratio will be discussed and suggestions
for a correct measurement protocol to determine absolute CtM ratios will be given.
title: Μελέτη εκκένωσης έκτακτης ανάγκης σιδηροδρομικού σταθμού μετά την εκδήλωση πυρκαγιάς
title: Emergency evacuation study of a railway station after the outbreak of a fire
titleType: AlternativeTitle
Creators: name: Αργυρόπουλος, Παναγιώτης
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: Fire dynamics simulator
FDS
Subway train fire
Smoke spread
Pathfinder
Πυρκαγιές
Pyrosim
Σιδηροδρομικοί σταθμοί
Υπολογιστική ρευστοδυναμική

description: Οι σιδηροδρομικοί σταθμοί είναι κρίσιμοι κόμβοι μεταφορών που συνδέουν περιοχές και χώρες. Είναι σημαντικοί όχι μόνο για τις μεταφορές, αλλά και ως πόλοι κοινωνικών, οικονομικών και πολιτιστικών δραστηριοτήτων. Ωστόσο, μπορούν να είναι επικίνδυνοι σε περίπτωση πυρκαγιάς. Επομένως, ο σχεδιασμός έκτακτης εκκένωσης είναι απαραίτητος για την ασφάλεια των επιβατών και του προσωπικού. Η προσομοίωση με λογισμικά, όπως το Pathfinder και το Pyrosim, βοηθά στην ανάπτυξη αποτελεσματικών στρατηγικών εκκένωσης και στη βελτίωση της ασφάλειας στους σιδηροδρομικούς σταθμούς. Αυτή η διατριβή επικεντρώνεται στη μελέτη της εκκένωσης σε σιδηροδρομικό σταθμό μετά από πυρκαγιά, χρησιμοποιώντας αυτά τα λογισμικά για την αξιολόγηση και τη βελτιστοποίηση των στρατηγικών εκκένωσης. Η έρευνα επιδιώκει να εντοπίσει παράγοντες που επηρεάζουν την εκκένωση και να προσφέρει προτάσεις για βελτιώσεις στον σχεδιασμό εκκένωσης σιδηροδρομικών σταθμών.
Clinical validation of a novel web-application for remote assessment of distance visual acuity.
Creators: name: Thirunavukarasu, Arun James
name: Mullinger, Deborah
name: Rufus-Toye, Remi Mohan
name: Farrell, Sarah
name: Allen, Louise E
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021

description: BACKGROUND/OBJECTIVES: Ophthalmic disorders cause 8% of hospital clinic attendances, the highest of any specialty. The fundamental need for a distance visual acuity (VA) measurement constrains remote consultation. A web-application, DigiVis, facilitates self-assessment of VA using two internet-connected devices. This prospective validation study aimed to establish its accuracy, reliability, usability and acceptability. SUBJECTS/METHODS: In total, 120 patients aged 5-87 years (median = 27) self-tested their vision twice using DigiVis in addition to their standard clinical assessment. Eyes with VA worse than +0.80 logMAR were excluded. Accuracy and test-retest (TRT) variability were compared using Bland-Altman analysis and intraclass correlation coefficients (ICC). Patient feedback was analysed. RESULTS: Bias between VA tests was insignificant at -0.001 (95% CI -0.017 to 0.015) logMAR. The upper limit of agreement (LOA) was 0.173 (95% CI 0.146 to 0.201) and the lower LOA -0.175 (95% CI -0.202 to -0.147) logMAR. The ICC was 0.818 (95% CI 0.748 to 0.869). DigiVis TRT mean bias was similarly insignificant, at 0.001 (95% CI -0.011 to 0.013) logMAR, the upper LOA was 0.124 (95% CI 0.103 to 0.144) and the lower LOA -0.121 (95% CI -0.142 to -0.101) logMAR. The ICC was 0.922 (95% CI 0.887 to 0.946). 95% of subjects were willing to use DigiVis to monitor vision at home. CONCLUSIONS: Self-tested distance VA using DigiVis is accurate, reliable and well accepted by patients. The app has potential to facilitate home monitoring, triage and remote consultation but widescale implementation will require integration with NHS databases and secure patient data storage.
description: Addenbrooke’s Charitable Trust.
Novel information about stem cell factor localisation in the rat testis
Creators: name: McKay, Tara .
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.
Performance study of single undoped CsI crystals for the Mu2e experiment
Creators: name: Donghia, Raffaella
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The Mu2e experiment at Fermilab aims to measure the charged lepton flavor violating neutrinoless muon to electron conversion. The goal of the experiment is to reach a single event sensitivity of 2.5 x 10^{-17}, to set an upper limit on the muon conversion rate at 6.7 x 10^{-17} in a three years run. For this purpose, the Mu2e detector is designed to identify electrons from muon conversion and reduce the background to a negligible level. It consists of a low mass straw tracker and a pure CsI crystal calorimeter. In this paper, the performance of undoped CsI single crystal is reported. Crystals from many vendors have been characterized by determining their Light Yield (LY) and Longitudinal Response Uniformity (LRU), when read with a UV extended PMT, and their time resolution when coupled to a Silicon Photomultiplier. The crystals show a LY of ~ 100 photoelectrons per MeV when wrapped with Tyvek and coupled to the PMT without optical grease. The LRU is well represented by a linear slope that is on average 0.6%/cm. Both measurements have been performed using a 22Na source. The timing performance have been evaluated exploiting minimum ionizing particles, with MPPC readout. A timing resolution better than 400 ps is achieved (at ~20MeV).
description: 10 pages, 9 figures, submitted to Nuovo Cimento C
IR-Images of Defective PV-Modules Influenced by Short-Time Changes of the Electric System
Creators: name: Buerhop-Lutz, C.
name: Dettelbacher, J.
name: Pickel, T.
name: Camus, C.
name: Hauch, J.
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; 2027-2029
description: IR-thermography is a useful tool for the inspection of installed PV-modules. It is well-known that ambient
conditions like irradiance and wind velocity have an influence on the measured temperatures. In this investigation, we
study the influence of short-time changes of the electrical system, caused by the global maximum power point search
algorithm of a grid-tie inverter, on IR-images. Considerable changes of the temperature difference at defects within
seconds were detected. Therefore, we perform an experimental study with different types of inverters on a test facility at
the ZAE Bayern and thermal simulations of the behavior of different types of module defects. Furthermore, we discuss
the impacts on the defect temperature and make a proposal to avoid misinterpretation of IR-images of PV-modules
affected by short-time changes of the electric system.
ALFALFA Discovery of the Most Metal-Poor Gas-Rich Galaxy Known: AGC 198691
Creators: name: Hirschauer, Alec S.
name: Salzer, John J.
name: Skillman, Evan D.
name: Berg, Danielle
name: McQuinn, Kristen B. W.
name: Cannon, John M.
name: Gordon, Alex J. R.
name: Haynes, Martha P.
name: Giovanelli, Riccardo
name: Adams, Elizabeth A. K.
name: Janowiecki, Steven
name: Rhode, Katherine L.
name: Pogge, Richard W.
name: Croxall, Kevin V.
name: Aver, Erik
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present spectroscopic observations of the nearby dwarf galaxy AGC 198691. This object is part of the Survey of HI in Extremely Low-Mass Dwarfs (SHIELD) project, which is a multi-wavelength study of galaxies with HI masses in the range of 10$^{6}$-10$^{7.2}$~M$_{\odot}$ discovered by the ALFALFA survey. We have obtained spectra of the lone HII region in AGC 198691 with the new high-throughput KPNO Ohio State Multi-Object Spectrograph (KOSMOS) on the Mayall 4-m as well as with the Blue Channel spectrograph on the MMT 6.5-m telescope. These observations enable the measurement of the temperature-sensitive [OIII]$λ$4363 line and hence the determination of a "direct" oxygen abundance for AGC 198691. We find this system to be an extremely metal-deficient (XMD) system with an oxygen abundance of 12+log(O/H) = 7.02 $\pm$ 0.03, making AGC 198691 the lowest-abundance star-forming galaxy known in the local universe. Two of the five lowest-abundance galaxies known have been discovered by the ALFALFA blind HI survey; this high yield of XMD galaxies represents a paradigm shift in the search for extremely metal-poor galaxies.
description: 14 pages, 7 figures, 4 tables, accepted for publication in ApJ
title: Μεθοδολογίες μηχανικής μάθησης για την πρόγνωση πιστωτικού κινδύνου
title: Machine learning methodologies for credit risk prediction
titleType: AlternativeTitle
Creators: name: Πληθάκης, Κωνσταντίνος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2022
Subjects: subject: Μηχανική μάθηση
subject: Πρόγνωση
subject: Πιστωτικός κίνδυνος
subject: Τεχνητή νοημοσύνη

description: Στην Διπλωματική μας εργασία θα ασχοληθούμε με τον κλάδο της Τεχνητής Νοημοσύνης (Artificial Intelligence) και συγκεκριμένα της Μηχανικής και της Βαθιάς Μάθησης (Machine Learning and Deep Learning) στον χώρο της Οικονομίας και ειδικότερα, της Ανάλυσης Ρίσκου και διενέργειας προβλέψεων πάνω στο ζήτημα της χρηματοοικονομικής πίστωσης.
Harbingers and latecomers - The order of appearance of exact coherent structures in plane Poiseuille flow
Creators: name: Zammert, Stefan
name: Eckhardt, Bruno
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The transition to turbulence in plane Poiseuille flow (PPF) is connected with the presence of exact coherent structures. In contrast to other shear flows, PPF has a number of different coherent states that are relevant for the transition. We here discuss the different states, compare the critical Reynolds numbers and optimal wavelengths for their appearance, and explore the differences between flows operating at constant mass flux or at constant pressure drop. The Reynolds numbers quoted here are based on the mean flow velocity and refer to constant mass flux, the ones for constant pressure drop are always higher. The Tollmien-Schlichting waves bifurcate subcritically from the laminar profile at $Re=5772$ and reach down to $Re=2609$ (at a different optimal wave length). Their localized counter part bifurcates at the even lower value $Re=2334$. Three dimensional exact solutions appear at much lower Reynolds numbers. We describe one exact solutions that is spanwise localized and has a critical Reynolds number of $316$. Comparison to plane Couette flow suggests that this is likely the lowest Reynolds number for exact coherent structures in PPF. Streamwise localized versions of this state require higher Reynolds numbers, with the lowest bifurcation occurring near $Re=1018$.
FEDORA materials' effectiveness to develop thinking and future-scaffolding skills and to foster aware, responsible and proactive engagement with science: results and hypotheses from the first round implementations - Deliverable 4.2
Creators: name: Tasquier, Giulia
name: Barelli, Eleonora
Publisher: name: Zenodo
Year: 2023
Subjects: Open Schooling, interdisciplinarity, science education, futures thinking, future

description: This deliverable has the aim to present the state of the first round of FEDORA implementations as well as the results achieved by them.
 FEDORA's first round of implementations took place during the second year of the project within the three open schooling networks (OSNs) established in the developer/implementer countries (HOSN - Helsinki Open Schooling Network; OOSN - Oxford Open Schooling Network; BOSN - Bologna Open Schooling Network). As foreseen by the project, one pillar action of WP4 is to design and implement innovative teaching activities and materials aimed to develop inter-multi-transdisciplinary, linguistic/argumentative, imaginative thinking and future-scaffolding skills and to impact young people's engagement with future-oriented and science-related activities.
Forecasting Degradation Rates of Different Photovoltaic Systems Using Robust Principal Component Analysis and ARIMA
Creators: name: Kyprianou, A.
name: Phinikarides, A.
name: Makrides, G.
name: Georghiou, G.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; 2033-2035
description: Degradation rates based on forecasting of performance ratio (PR), Rp, time series are computed and
compared with actual degradation rates. A three year forecasting of monthly PR, measured from PV connected
systems of various technolgies is performed using the seasonal ARIMA (SARIMA) time series model. The seasonal
ARIMA model is estimated using monthly PR measured over a 5 year period and based on this model forecasting is
implemented for the subsequent three years. The degradation rate at the end of the forecasting period, eighth year,
is computed using a robust principal component analysis (RCPA) based methodology. The degradation rates obtained
for various (PV) systems are then compared to the ones obtained using the actual eight year data.
FRBCAT: The Fast Radio Burst Catalogue
Creators: name: Petroff, E.
name: Barr, E. D.
name: Jameson, A.
name: Keane, E. F.
name: Bailes, M.
name: Kramer, M.
name: Morello, V.
name: Tabbara, D.
name: van Straten, W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Here we present a catalogue of known Fast Radio Burst (FRB) sources in the form of an online catalogue, FRBCAT. The catalogue includes information about the instrumentation used for the observations for each detected burst, the measured quantities from each observation, and model-dependent quantities derived from observed quantities. To aid in consistent comparisons of burst properties such as width and signal-to-noise ratios we have reprocessed all the bursts for which we have access to the raw data, with software which we make available. The originally derived properties are also listed for comparison. The catalogue is hosted online as a MySQL database which can also be downloaded in tabular or plain text format for off-line use. This database will be maintained for use by the community for studies of the FRB population as it grows.
description: 7 pages, 1 figure, submitted to PASA
Transcription factor Oct-4 expression in bovine nuclear transfer embryos
Creators: name: Xiang, Tianhao.
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.
Development, Application and Validation of a Compact, Portable Solar Cell Characterization Device Utilized for BIPV Analysis
Creators: name: Holzmann, D.
name: Mayer, C.
name: Neumaier, L.
name: Hirschl, 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; 1969-1972
description: During this work a portable solar cell characterization device as well as its application in a building
integrated photovoltaic (BIPV) test system is shown. The solar cells are characterized by measuring their currentvoltage
curve (I-V-curve) in user-defined intervals. A test setup was build that allows the application of various types
of façade elements and solar cells. Up to four solar cells, oriented at the four cardinal directions, can be measured
simultaneously over a whole day, which allows a comprehensive comparison of them. Besides additional energy
yields also advantages of a more consistent/user adapted energy distribution over a day, resulting from façademounted
solar cells/modules, can be evaluated. To enable a more detailed data analysis the local irradiance as well as
the temperature of each cell and the specific façade panel is determined. Outdoor measurements under the influence
of natural sunlight and various weather conditions were conducted with crystalline cells and thin film (CZTS)
modules, mounted on exchangeable façade elements.
Quantum thermodynamics in chiral two--level systems. The quantum stochastic resonance
Creators: name: Rojas-Lorenzo, G.
name: Peñaate-Rodríguez, H. C.
name: Dorta-Urra, A.
name: Bargueño, P.
name: Miret-Artés, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A Langevin canonical framework for a chiral two-level system coupled to a bath of harmonic oscillators is used within a coupling scheme different from the well-known spin-boson model. From this stochastic dynamics, within the Markovian regime and Ohmic friction, some standard quantum thermodynamics functions such as the energy average and heat capacity can be extracted. In particular, special emphasis is put on the so-called quantum stochastic resonance which is a cooperative effect of friction, noise and periodic driving occurring in a bistable system.
description: 22 pages, 5 figures. arXiv admin note: text overlap with arXiv:1310.3155, arXiv:1207.3349
Perspectives and Practices of Inclusivity in an Online Learning Environment: An Ethnomethodological Study of an International School in Indonesia
Creators: name: Lardizabal, Erdolfo L.
Publisher: name: Zenodo
Year: 2023
Subjects: Online Learning; Inclusion; International Schools; Sense-Making Knowledge.

description: To make an online learning environment inclusive, it is important that schools must value diversity so that teaching practices may be responsive to the academic needs of not just some but all students. Inclusion is not about the shortfall of an individual because of one’s disability, disorder, or being gifted but it is how the school environment adjust to the individual. If so, then inclusion is of a social construct which entails an ethnomethodological approach in understanding inclusion. Instead of studying institutions that are committed and dedicated towards inclusive practices, this study zeroed in on an international school and inquired on practices that emerged from teachers’ personal practical or sense making knowledge which has been developed overtime through their experiences. This study answered the following: 1. What teaching practices do western teachers in an international school aim to foster inclusivity in an online learning environment? 2. What is the perspective of the school on inclusivity that defines those practices? To explore how teachers’ actual ordinary and mundane discussion produce an answer as to how they (the teachers) make inclusion happen, this study analyzed the conversation of western international teachers on how they are making sense of policies brought forward by the school. The findings included ten (10) points that may guide schools on how to implement inclusion in an online learning environment. The contribution of this study to distance education includes the value of reflexive (sense-making) accountability of teachers. Such accountability contributed to the orderliness and shared performance to carry out inclusive education in an online learning environment.
title: Localization of Sound Sources in Binaural Reproduction of First and Third Order Ambisonics
Creators: name: Sagasti, Amaia
name: Pietrzak, Agnieszka Paula
name: San Martin, Ricardo
name: Eguinoa, Rubén
Publisher: name: Publishing House of Poznan University of Technology
Year: 2022

description: Vibrations in Physical Systems, 33(2), 2022214-1 - 2022214-8
Floating PV Power System Evaluation over Five Years (2011 ~ 2016)
Creators: name: Won, C.-S.
name: Lawrence, W.
name: Kim, D.
name: Kang, B.
name: Kim, K.
name: Lee, 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; 1982-1984
description: We introduce sections of an ongoing reliability research study on a test bed 100kW and commercial
500kW Floating PV systems installed in 2011 and 2012 repectively. Based on periodic testing field samples, and
Manuel and Ignacio [1] module degradation model as reference, initial predictions are made on module useful life is
made. When 2.4% initial LID loss is factored, an annual degradation rate of 0.45%/year is deduced. PO when
implemented in combination with other high performance components like junction box, edge sealant materials,
significantly reduces water ingress induced degradation, improving long term PV module reliability, ultimately
increasing solar technology viability, durability and bankability).
Floating Photovoltaic Installations in the Maltese Sea Waters
Creators: name: Grech, M.
name: Mule'Stagno, L.
name: Aquilina, M.
name: Cadamuro, M.
name: Witzke, U.
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; 1964-1968
description: Photovoltaic (PV) installations require about 7-10m2 of area per Kilowatt Peak (kWp) of power. This is
quite a considerable area where space is scarce, such as regions with high population densities, cities or small islands.
In such cases, large scale photovoltaic installations are not viable on land. However, if one can develop a viable and
economically feasible solution to install photovoltaic installations at sea, a much greater area can be utilized for
renewable energy. The aim of this study was to build and test prototypes of floating PV installations suitable for
marine environment deployment. Different floating devices, mounting techniques and PV modules technologies were
used in this study. The installations were deployed at sea, and data was recorded. The data,collected over an extended
period of time,was compared with that of a similar installation constructed on land. . The costing and feasibility of
the marine installation was also modelled and studied. Sea-based modules performed better than land-based similar
systems, and a design that meets both the durability and the cost requirement appears possible. The lessons learnt
from these prototypes may be carried forward in designing future floating installations.
A Use of Artificial Intelligence for Improving PV Array Performance (Empirical Approach)
Creators: name: Macq, A.
name: Mercier Des Rochettes, L.
name: Martin-Carron, L.
name: Cristi, N.
name: Gleizes, M.-P.
name: Bernon, C.
name: Glize, P.
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; 1978-1981
description: This paper reflects research to design an Artificial Intelligence (AI) platform for controlling the cooling
of Si-based PV modules in commercial solar arrays. The AI technology used for this purpose is based on Adaptive
Multi-Agent Systems (AMAS). The information fed to the control platform combines locally-collected and
exogenous sources, such as grid data and weather forecasts. Elaborating on an existing PV modules cooling
equipment driven by traditional industrial algorithms, the AI control platform substantially improves the use of
information to make or recommend operational decisions. Thanks to AMAS techniques, the platform can anticipate
events by analysing a broader range of information, thereby improving the economics of PV modules cooling.
Introducing Artificial Intelligence in this and related areas of solar plant operations has the potential of further
improving resource utilization and maintenance efficiency.
Advanced Performance Monitoring System for Improved Reliability and Optimized Levelized Cost of Electricity
Creators: name: Makrides, G.
name: Phinikarides, A.
name: Sutterlueti, J.
name: Ransome, S.
name: Georghiou, G.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; 1973-1977
description: The key factor that will enable and enhance the further increase of the uptake of photovoltaic (PV)
technology globally, is the reduction in PV electricity costs by increasing the lifetime output of PV systems. This can
be achieved by improving the reliability and service lifetime performance through constant, solid and traceable PV
plant monitoring of installed systems. In this way, the investment cost, levelised cost of electricity (LCoE) and in
general PV competitiveness can be enhanced positively. It is with this background that the project “Innovative
Performance Monitoring System for Improved Reliability and Optimized Levelised Cost of Electricity” (IPERMON)
funded by the SOLAR-ERA.NET Transnational Calls PV3 and CSP3, has been initiated between Gantner
Instruments (GI) GmbH and the PV Technology Laboratory of the University of Cyprus (UCY), in order to develop
an innovative monitoring system with enhanced capabilities, far beyond the state-of-the-art. The proposed monitoring
system will be capable to detect performance losses and failures, determine the degradation rate and provide accurate
hourly and day-ahead power production forecasts. The scope of this work is to present the main scientific,
technological and commercial objectives of the project in the field of PV performance monitoring systems and to
present first results for the formulation and benchmarking of innovative guidelines and algorithms for the detection
and diagnosis of performance losses, degradation and failures.