cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Lipschitz retractions in Hadamard spaces via gradient flow semigroups
Creators: name: Bacak, Miroslav
name: Kovalev, Leonid V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Functional Analysis (math.FA)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: Let $X(n),$ for $n\in\mathbb{N},$ be the set of all subsets of a metric space $(X,d)$ of cardinality at most $n.$ The set $X(n)$ equipped with the Hausdorff metric is called a finite subset space. In this paper we are concerned with the existence of Lipschitz retractions $r: X(n)\to X(n-1)$ for $n\ge2.$ It is known that such retractions do not exist if $X$ is the one-dimensional sphere. On the other hand L. Kovalev has recently established their existence in case $X$ is a Hilbert space and he also posed a question as to whether or not such Lipschitz retractions exist for $X$ being a Hadamard space. In the present paper we answer this question in the positive.
Exploring the mediating effect of banking innovation in the relationship between CRM practice and performance of commercial bank of Ethiopia
Creators: name: Melat, Hailemariam
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: The main purpose of this study was to examine the mediating effect of banking innovation on the relationship between customer relationship management and performance of commercial bank of Ethiopia. The researcher used the ongoing activities of components of CRM i.e. focusing on key customer, organizing around CRM and incorporating CRM-based Technology as independent variables to examine their effect on both banking innovation and performance. The researcher was applied explanatory research design to meet the research objectives. In this research purposive sampling and then random sampling techniques was applied to get appropriate representative sample from the population of the study which was employees of 287 branches of CBE located in Addis Ababa. The researcher collected data from 64 branches of north districts of CBE located in Addis Ababa city using self-administered questionnaire. A total of 300 questionnaires were distributed to target respondents and out of the total 162 questionnaires were collected (54 %). The collected data was analyzed using statistical package for social science (SPSS) version1.0. The descriptive statistics (mean, standard deviation) and inferential statistics (correlation and regression) were used to described demographic characteristics of the respondents, to test hypothesis and to answer research questions. The statistical result revealed that banking innovation mediates the relationship between CRM and performance of CBE. The finding also exposed that not all dimensions of CRM has significant effect on the relationship; only focusing on key customer and incorporating CRM-based Technology dimension of independent variable has significant effect on banking innovation and performance.
PV Roofing for High Ranking Road Networks: Technical Feasibility and Yield Estimation
Creators: name: Ebner, R.
name: Mayr, C.
name: Rennhofer, M.
name: Berger, K.A.
name: Heinrich, M.
name: Basler, F.
name: Beinert, A.J.
name: Huyeng, J.D.
name: Haider, M.
name: Prammer, D.
name: Vorwagner, A.
name: Fehringer, M.
name: Beck, T.
Publisher: name: WIP
Year: 2022
Subjects: PV Systems Engineering, Integrated/Applied PV
Infrastructure-integrated PV (I2PV) and Nature-inclusive PV (eco-PV); Vehicle Integrated PV (VIPV)

description: 8th World Conference on Photovoltaic Energy Conversion; 974-979
description: As renewable energies need to be extended massively, new concepts are necessary to prevent land conflicts with other uses. Such concepts should have a high generality to offer a swift expansion of renewables anywhere. Within the project Photovoltaic Road Roofing Concept (PV-SÜD), a concept for the roofing of roadways with solar panels was investigated and its effects on the road infrastructure were analyzed. The technical boundary conditions and requirements resulting from this application area were determined with regard to the photovoltaic technology used, the possible energy generation and the required supporting structure. This was done in a generalized and multipliable approach differing from previous studies, which mainly aimed at a singular site or demonstrator project. The requirements were maximum flexibility in the road integration potential and that interferes as little as possible with traffic operation and which further guarantees an electric yield with minimized variation from site or orientation. The solution was selected in the form of a gable roof elevated in steel for road sections with a predominantly north-south course and in the form of an elevated pent roof for road sections with a predominantly east-west course in accordance with the optimum PV yield utilization. This roofing is to be realized as a steel frame construction with active PV elements in glass-glass technology.
Assessment on practices and determinants of corporate social Responsibility in Ethiopian leather industry: A comparative study conducted in Abyssinia tannery PLC. and blue Nile tannery S.C.
Creators: name: Ephrem, Haile
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: The study aimed at studying the existence and practices of different dimensions of Corporate Social Responsibility (CSR) practices and determinants in Ethiopian Leather Industry by taking Abyssinia and Blue Nile tanneries. The study uses field survey as a methodology and Eightyeight and thirty-five workers in Abyssinia and Blue Nile tanneries selected through Simple random sampling techniques from the total employees of six hundred and two hundred seventy five in each tannery. Data collected through mainly questionnaire, interview and Observation. Finally, the data collected through the questionnaires has coded, entered into computer, analyzed, and presented in the form of tables using SPSS version Software and integrated with interview and observation results. On the other hand, to identify direct relationship of determinants of CSR practices in both companies the researcher use logistic regression analysis's methodology. Findings of the study has shown that , In determining types of CSR Practices in both tanneries operating in leather industry , Abyssinia Tannery is better than Blue Nile Tannery in the cases of labor handling, consumer protection, environmental protection and human rights. In contrast, Blue Nile Tannery is better in terms of community welfare, and transparency and anticorruption. Regardless of the comparison, both companies are well in CSR practices. Regarding the determinants of CSR practices it is through analysis of the direct relationships that insight is developed between the dependent and independent variables. CSR (dependent variable) has a strong positive relationship with labor pressure, consumer demands, community enforcement, sustainability and profitability. This thesis concludes with a discussion of the implications of these findings as well as recommendations for further research in the area.
Multiple-Objective Optimisation of Agrivoltaics Systems
Creators: name: Van Aken, B.B
name: Smeenk, S.
name: Maestrini, B.
name: Barros, E.
name: De Ruijter, F.
name: Cesar, I.
Publisher: name: WIP
Year: 2022
Subjects: PV Systems Engineering, Integrated/Applied PV
Infrastructure-integrated PV (I2PV) and Nature-inclusive PV (eco-PV); Vehicle Integrated PV (VIPV)

description: 8th World Conference on Photovoltaic Energy Conversion; 980-984
description: Agrivoltaic systems combine agricultural production with solar electricity generation to make better use of the available land. We calculated the time-dependent ground irradiance of an agrivoltaic system with BIGEYE as input for calculations of the agricultural yield for potato with the crop growth model SIMPLE. Land use efficiency, (bifacial) energy yield and crop yield are optimised using the multi-objective optimisation tool Everest. The SIMPLE crop growth simulation shows that in the Netherlands a reduction of irradiance results in a decrease in crop yield. Different locations, within the same agrivoltaic system, with the same annual irradiance can have a 10% difference in crop yield, depending on the distribution of light over the season, the pattern of crop soil coverage and light interception and occurrence of water stress. We will show that for the Netherlands, an agrivoltaic system can yield at the same time 70% of the single-use potato yield and 70% of the single-use kWh yield. For Southern Germany, with more rain in the crop season, these percentages are lower.
Biodiversity and Ecosystems Services in Swedish Solar Farms: Current Practice and a Planning Framework for Net Gain
Creators: name: Van Noord, M.
name: Pettersson, I.
name: Råberg, T.
name: Morell, K.
name: Björnsson, L.H.
name: Zinko, U.
name: Ghaem Sigarchian, S.
name: Sandström, A.
Publisher: name: WIP
Year: 2022
Subjects: PV Systems Engineering, Integrated/Applied PV
Infrastructure-integrated PV (I2PV) and Nature-inclusive PV (eco-PV); Vehicle Integrated PV (VIPV)

description: 8th World Conference on Photovoltaic Energy Conversion; 985-991
description: The Swedish solar farm market is expanding rapidly as ground-mounted solar plants are getting larger in size and number. This development inevitably leads to an increased land use change, which is the foremost cause of biodiversity loss. Along with a decrease in biodiversity, nature's supply of ecosystem services decreases, as well as chances to meet several (inter)national environmental and sustainable development goals. This study presents results of the Eco-Sun project, developing practical guidelines for the planning, construction and management of solar farms with a net zero, or net positive, impact on biodiversity and ecosystem services. It shows that biodiversity measures are present but limited in Swedish solar farms, while agrivoltaic crop cultivation is limited to one single site. In order to address environmental challenges and increase multiple land use, a step-by-step process is presented for the inclusion of biodiversity, agricultural and non-agricultural ecosystem services into the planning and design of ground-mounted solar PV.
VIPV Irradiation Modeling and Verification with Trip Data
Creators: name: Sovetkin, E.
name: Noll, J.
name: Patel, N.
name: Gerber, A.
name: Pieters, B.E.
Publisher: name: WIP
Year: 2022
Subjects: PV Systems Engineering, Integrated/Applied PV
Infrastructure-integrated PV (I2PV) and Nature-inclusive PV (eco-PV); Vehicle Integrated PV (VIPV)

description: 8th World Conference on Photovoltaic Energy Conversion; 960-966
description: This work proposes a benchmark dataset for irradiance modeling for vehicle-integrated photovoltaics (VIPV). Our vehicle trip data consist of trips in the state of North Rhine-Westphalia (NRW) in Germany starting from March 2021, which amounts to more than 73 hours and a total distance of 3422 km. The sensor box is equipped with GPS, a magnetic compass, acoustic wind, and irradiance sensors and records at a rate of 0.58Hz. The irradiance sensors are positioned on four sides of the vehicle: roof, left, right and rear. In addition to the data, the paper discusses a model that uses high-resolution topography (LIDAR) and low-resolution weather data to forecast the effective irradiation of modules mounted on a moving vehicle. The utility of our simulation approach is demonstrated by computing irradiation over long periods for various driving profiles and comparing results with the collected measurement data. Our model attains 98% accuracy of the irradiation computed over 8 months. Our data is published as a challenge, where everyone can propose and test their model for irradiance modeling.
Presentation BDG_Community of Practice #3 Timisoara
Creators: name: Nanu, Ciprian
Publisher: name: Zenodo
Year: 2023
Subjects: subject: circulareconomy
subject: waterindustrialsymbiosis
subject: Timisoara
subject: https://issuu.com/businessdevelopment/docs/presentationbdg_cs10_cop_07.10.2022_v4

description: BDG Presentationon New Circular Economy 2022 Strategy in Romania ; Date of document: October 7th, 2022
title: Mitteilungen des Kunsthistorischen Institutes in Florenz, Bd. 47 Nr. 2/3 (2003): Mitteilungen des Kunsthistorischen Institutes in Florenz
title: Mitteilungen des Kunsthistorischen Institutes in Florenz
titleType: AlternativeTitle
Creators: name: Mitteilungen Des Kunsthistorischen Institutes In Florenz
Publisher: name: Mitteilungen des Kunsthistorischen Institutes in Florenz
Year: 2024

description: Band XLVII (2003), Heft 2/3
description: Ein Gonfalone ‘alla vasari’ in Montepulciano...501-506
Ottavio Leoni disegnatore e pittore. I cesi e il Cardinal Montalto...345-374
In der Werkstatt Filaretes: Bemerkungen zur Praxis des Architekturzeichnens in der Renaissance...311-344
High-Voltage Vehicle Integrated Photovoltaic System Concept and Demonstrator Truck
Creators: name: Schüler, M.A.
name: Kutter, C.
name: Alanis, L.E.
name: Saroch, L.
name: Barz, C.
name: Bornwasser, J.
name: Reichert, S.
name: Neuhaus, D.H.
name: Heinrich, M.
Publisher: name: WIP
Year: 2022
Subjects: PV Systems Engineering, Integrated/Applied PV
Infrastructure-integrated PV (I2PV) and Nature-inclusive PV (eco-PV); Vehicle Integrated PV (VIPV)

description: 8th World Conference on Photovoltaic Energy Conversion; 967-973
description: Certain commercial vehicles feature large roof areas that can be easily equipped with lightweight photovoltaic (PV) modules to harvest solar energy. Typically, heavy commercial vehicles (>12 t trucks and semi-trailer) can be fitted with an installed photovoltaic power of 3 kWp to 7 kWp with today’s mainstream cell technologies integrated on the roof, and harvest significant amounts of energy. Therefore, a high voltage photovoltaic system can significantly reduce the amount and the cross-section area of the cables, and therefore cost and weight. This is why we propose a high voltage photovoltaic system concept for commercial application. The difference to conventional automotive high voltage systems, which are controlled by a central unit, is that within the photovoltaic array, high voltage is present whenever the PV modules are illuminated, and hence need to be considered under power at all times. To comply with safety standards and reduce the risks linked to high voltages (e.g. after an accident), we present a smart junction box with integrated disconnector that automatically separates the serial connection of the modules in order to lower the voltage into the range of safety extra-low voltage. The developed VIPV system is able to feed in solar energy during operation and in standby mode. We present a 15-t demonstrator truck, a Framo E-165, equipped with the abovementioned VIPV system and show yield calculations based on an energy yield model.
Dying radio galaxies in the LOFAR Lockman Hole
Creators: name: Brienza, Marisa
name: Mahony, Elizabeth
name: Morganti, Raffaella
name: Prandoni, Isabella
name: Godfrey, Leith
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: After the jets have switched off, radio galaxies undergo a fading phase which is often named the dying phase. The luminosity evolution of the remnant plasma during this period is still poorly constrained because of the paucity of objects detected. Using the new 150-MHz deep LOFAR observations of the well-known extragalactic field the Lockman Hole, we performed a systematic search of dying radio sources aiming to provide good statistics on their detection and properties. To avoid selection biases towards any specific class of dying sources we used both morphological and spectral selection criteria. To do this we combined the LOFAR data with publicly available surveys at other frequencies as well as dedicated deep observations. Our preliminary results, show that the fraction of candidate dying radio sources is < 6-8% of the entire radio source population and is dominated by steep spectrum sources. By comparing these observational results with statistical modelling of the radio sky population we will be able to constrain the main mechanisms contributing to the dying radio galaxy luminosity evolution.
description: 8 pages, 4 figures, Proceedings of the conference "The many facets of extragalactic radio surveys: towards new scientific challenges", PoS(EXTRA-RADSUR2015)068, eds. I Prandoni & R. Morganti
The effects of workforce diversity on employee performance: case of Hawassa Industrial Park
Creators: name: Ruot, Met
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: The purpose of this study was to investigate the relationship between workforce diversity and employee performance in industrial parks referring to Hawassa Industrial Park - flagship. However, there were some selected differences for which the research is going to be formulated to independent variables videlicet ethnic, gender, age, and educational background and dependent variable (performance) which object the researcher to determining their positive effects on the employee performance. The primary data for the study were gathered from 18 factories operating in the park using a self- administered closed ended likert research questionnaire that investigates the research purpose and a quantitative randomly sampled research design with 18 strata was applied and a random sample of (n = 377) was determined from a population of 18282 labor employees by Kothari method that give each factory employee a chance of inclusion by sample and categorize them into homogeneous population. Questionnaires were distributed to these 377 randomly selected sampled respondents in different factories they were working in and then 7 respondents did not returned the questionnaires but the rest 370 were analyzed using SPSS version 20 and their final result was interpreted, discussed and recommendations were made.
On the initial value problem for the Navier-Stokes equations with the initial datum in critical Sobolev and Besov spaces
Creators: name: Khai, D. Q.
name: Tri, N. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q30

description: The existence of local unique mild solutions to the Navier-Stokes equations in the whole space with an initial tempered distribution datum in critical homogeneous or inhomogeneous Sobolev spaces is shown. Especially, the case when the integral-exponent is less than 2 is investigated. The global existence is also obtained for the initial datum in critical homogeneous Sobolev spaces with a norm small enough in suitable critical Besov spaces. The key lemma is to establish the bilinear estimates in these spaces, due to the point-wise decay of the kernel of the heat semigroup.
description: 27 pages. arXiv admin note: substantial text overlap with arXiv:1601.01441
Determinants of Mobile and Agent Banking Service Adoption: Evidence from Selected Commercial Banks in Ethiopia
Creators: name: Bekema, Abebe
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: This study aims at describing factors which can be Determinants of Mobile and Agent Banking Service Adoption: Evidence From selected commercial banks in Ethiopia. To achieve the objectives of the study and answer the research questions, the researcher used mixed research approach which encompasses both qualitative and quantitative research methods. This descriptive study was conducted based on the data gathered from the following four banks in Ethiopia; Abay Bank, Wgagen Bank, Lion International Bank and Cooperative Bank of Oromia. The data collected was analyzed using exploratory statistics and regression analysis. A research framework developed based on the Technology - Organization - Environment (TOE) framework and Technology Acceptance Model (TAM) was used to guide the study. The study revealed the following major driving factors in adopting agency banking among commercial banks in Ethiopia; Perceived Ease of Use (PEOU) and Perceived Usefulness (PU) of the technology. The barriers identified in this study came from the external environments like; lack of legal framework, under developed ICT infrastructure including poor network connectivity, lack of competition among banks and lack of sufficient government support, and perceived risk (PR). The study recommended banks to consider technology based competition focusing on customer base expansion, cost reduction, awareness creation, credibility, security, ease of use, and availability to exploit the benefit of agency banking while the government should support banking sector by facilitating sufficient ICT infrastructure development and issue workable legal frameworks to ease the adoption of agency banking system.
Analysis of Encapsulant Degradation in Desert Exposed Photovoltaic Modules with External Quantum Efficiency and UV-Fluorescence
Creators: name: Alheloo, A.
name: Almheiri, A.
name: Kumar, S.
name: Adothu, B.
name: John, J.J.
name: Mathiak, G.
name: Alberts, V.
Publisher: name: WIP
Year: 2022
Subjects: Photovoltaic Modules and BoS Components
Materials for PV Modules, Durability, Reliability and Accelerated Testing Methods

description: 8th World Conference on Photovoltaic Energy Conversion; 945-948
description: In 2015, a comparative study of different PV modules was started at the Outdoor Test Field at the DEWA R&D Center at the MBR Solar Park in Dubai. Thirty different module types (multi- and monocrystalline silicon) were tested, out of which two were picked for this study. Non-destructive techniques such as ultraviolet fluorescence imaging, visual inspection, and module external quantum efficiency analysis were used to detect the encapsulant degradation occurring on the modules, where UV-F visualizes the discoloration while module EQE quantifies and pinpoints the effect and causes. Results show that all modules show browning both under visual light and through UV-F, which was correlated to a loss in EQE in the shorter wavelengths corresponding to the UV range and rear side of the module. Affected regions within the cell show a reduced EQE over the entire spectrum, indicating a multi-layered effect on the cell’s packaging.
"Little Maintenance Over 25 Years?” – A Comprehensive Statistical Assessment of 35,000 O&M Tickets Across 5 Countries and their Techno-Economic Impacts
Creators: name: Lindig, S.
name: Gallmetzer, S.
name: Herz, M.
name: Moser, D.
name: Oviedo-Hernandez, G.
name: Southern, S.
name: Moretti, L.
Publisher: name: WIP
Year: 2022
Subjects: PV Systems Engineering, Integrated/Applied PV
Operation, Performance and Maintenance of PV Systems

description: 8th World Conference on Photovoltaic Energy Conversion; 949-959
description: In the framework of the H2020 project TRUST PV, steps towards an automatized, data-driven, decision support for the PV O&M sector have been investigated. Thereby, two important working areas are covered, the statistical as well as the economical evaluation of PV O&M failure tickets. A statistical evaluation is only possible if a common dictionary for ticket categorization is applied. Therefore, the TRUST-PV Risk matrix, a technical risk matrix covering all possible events within the operational phase of a conventional PV plant, has been created. Using the nomenclature of this matrix, we statistically evaluated more than 35,000 O&M tickets of over 100 PV. It has been shown that inverter and monitoring related tickets make more than 75% of all recorded tickets and there seems to be a bias towards automatically generated tickets and an underrepresentation of tickets related to components where a manual insertion is required. In the second part of this work, a concept to calculate the economic impact of O&M tickets has been developed based on information of individual tickets, PV system specific information as well as PV monitoring data.
Experimental Study of Non-uniform Mechanical Loads and Deformation on Photovoltaic Module
Creators: name: Hsu, S.T.
name: Long, Y.S.
Publisher: name: WIP
Year: 2022
Subjects: Photovoltaic Modules and BoS Components
Materials for PV Modules, Durability, Reliability and Accelerated Testing Methods

description: 8th World Conference on Photovoltaic Energy Conversion; 935-938
description: In order to avoid photovoltaic (PV) systems installed in the outside might damage by typhoons, hurricanes and cyclones, consequently, recent years have been increasing interest in developing new mechanical loads technologies that provide guarantees to simulate the real wind effects. However, strong gusts always generated nonuniform wind-loads on PV system, with lot of dynamic forces from vibrate, torque and moment, and deformation. To date, the quality of anti- wind for PV modules typically use the mechanical load tests such as IEC 61215-2:2021 MQT 16 (static mechanic load, SML) and IEC TS 62782:2016 (dynamic mechanic load, DML). However, these documents may not fully fulfil the testing challenges induced by non-uniform wind-loads due to environmental condition like wind velocity (V), wind direction angle (), and module tilt (). In this paper, two kinds of designed cyclic loads (uniform, non-uniform) are used to evaluate the mechanical properties of twelve PV modules (mono, 72 cells, = 25°) with two frames support. This work also considers the specific wind condition (V = 41.4 m/s, 50.9 m/s and 61.2 m/s; = 0° and 180°), and follows two test process which include SML (case A & C) and DML (case B & D). The major self-developed equipment includes a non-uniform dynamic mechanical load (NUDML) system, a deformation measurement system (DMS) and thirty-two units of linear displacement sensor (LDS). The results successfully achieved a quantifiable deformation recording method for PV module under two types of mechanical load process (SML, DML) combining with two kinds of cyclic loads (uniform, non-uniform).
Measuring and Modeling the Rate of Power Loss in N-PERT Cells Associated with PID-P as a Function of Encapsulant Resistivity and Irradiance
Creators: name: Habersberger, B.M.
name: Hacke, P.
Publisher: name: WIP
Year: 2022
Subjects: Photovoltaic Modules and BoS Components
Materials for PV Modules, Durability, Reliability and Accelerated Testing Methods

description: 8th World Conference on Photovoltaic Energy Conversion; 939-941
description: PID-p is commonly observed on the rear and front faces of bifacial PERC and n-PERT cells, respectively. While PID-p has been previously reported to be recoverable under light exposure as well as prevented or mitigated via the use of high-resistivity encapsulants, the relative rates of degradation and recovery processes, as well as their dependence on factors such as temperature, irradiance, and component resistivity are not well understood. Here, we expand on a recent report describing time-dependent PID measurements with simultaneous irradiance on minimodules comprising n-PERT cells and four encapsulants of varying resistivity. Additional physics are introduced with the goal of relating laboratory PID measurements to fielded module performance.
A Subpath Kernel for Learning Hierarchical Image Representations
Creators: name: Cui, Yanwei
name: Chapel, Laetitia
name: Lefèvre, Sébastien
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Tree kernels have demonstrated their ability to deal with hierarchical data, as the intrinsic tree structure often plays a discriminative role. While such kernels have been successfully applied to various domains such as nature language processing and bioinformatics, they mostly concentrate on ordered trees and whose nodes are described by symbolic data. Meanwhile, hierarchical representations have gained increasing interest to describe image content. This is particularly true in remote sensing, where such representations allow for revealing different objects of interest at various scales through a tree structure. However, the induced trees are unordered and the nodes are equipped with numerical features. In this paper, we propose a new structured kernel for hierarchical image representations which is built on the concept of subpath kernel. Experimental results on both artificial and remote sensing datasets show that the proposed kernel manages to deal with the hierarchical nature of the data, leading to better classification rates.
description: 10th IAPR-TC-15 International Workshop, GbRPR 2015, Beijing, China, May 13-15, 2015. Proceedings
D2 brane as the wormhole and the number of the universes
Creators: name: Gusin, Pawel
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct wormhole-like solutions in the type IIA string theory. These solutions represent wormholes in four-dimensions and are given by the D2 branes within appropraited backgrounds fields. We present the conditions on these fields which lead to the four-dimensional wormholes. In the special case we show how the particular solution in the type IIA theory leads to the dynamic wormhole. We also speculate about the number of universes and the cosmological constant.
description: 15 pages, 1 figure
Study on Corrosion Reactions at the Rear Side of Bifacial PERC Solar Cells
Creators: name: Hao, Y.
name: Huang, X.
name: Ke, X.
name: Wang, H.
name: Yang, H.
Publisher: name: WIP
Year: 2022
Subjects: Photovoltaic Modules and BoS Components
Materials for PV Modules, Durability, Reliability and Accelerated Testing Methods

description: 8th World Conference on Photovoltaic Energy Conversion; 942-944
description: In this paper, the corrosion reactions on the rear side of bifacial silicon PERC solar cells under different polarity system bias were investigated. It was found that there are various degrees of corrosion at the Al/Ag finger due to the difference in the metal electrode potential and polarity system voltage. A novel finding is that the phenomenon of broken grid was observed when the back of PERC silicon solar cells was under positive voltage bias. Then, SEM and EDS were performed to analyze the microstructure of the back of the bifacial PERC solar cells after corrosion. The corrosion reactions will cause serious performance degradation and have adverse effects on the reliability of bifacial PERC solar cells.
Does catch‑and‑release increase the recreational value of rivers? The case of salmon fishing
Creators: name: Ropars‑Collet, Carole
name: Le Goffe, Philippe
name: Lefnatsa, Qods
name: Ropars‑Collet, Carole
name: Le Goffe, Philippe
name: Lefnatsa, Qods
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Recreational activity
subject: Salmon fishing
subject: Catch and release
subject: Choice experiment

description: Catch-and-release (C&R) could be an interesting management tool in recreational fisheries as long as mortality remains low and the anglers’ well-being does not drop. We used a choice experiment to examine the potential of C&R angling as a monitoring tool for the salmon recreational fishery in Brittany (France) in summer 2017. Anglers were asked to choose between hypothetical fishing day trips differ- ing in terms of their combination of relevant attributes and levels and distance to travel. From the analysis of respondents’ trade-offs between the fishing trip’s attrib- utes, willingness-to-pay was estimated for each level of attribute. Our results show that anglers prefer unrestrictive regulations. On average, we observe that C&R has a depressive effect on the valuation of the fishing day. However, some socioeconomic groups positively value C&R. All in all, the majority of the anglers nonetheless hold a positive valuation of a C&R fishing day, which could therefore be used to generate economic returns for the river once the total admissible capture (TAC) is reached. Lastly, the fishing season, and especially the level of river use, impacts more on the value of fishing than C&R.
Nucleon Charges, Form-factors and Neutron EDM
Creators: name: Gupta, Rajan
name: Bhattacharya, Tanmoy
name: Cirigliano, Vincenzo
name: Lin, Huey-Wen
name: Yoon, Boram
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present an update of our analysis of statistical and systematic errors in the calculation of iso-vector scalar, axial and tensor charges of the nucleon. The calculations are done using $N_f=2+1+1$ flavor HISQ ensembles generated by the MILC Collaboration at three values of the lattice spacing ($a=0.12,\ 0.09,$ and $0.06$ fm) and three values of the quark mass ($M_π\approx 310,\ 220$ and $130$ MeV); and clover fermions for calculating the correlation functions, i.e., we use a clover-on-HISQ lattice formulation. The all-mode-averaging method allows us to increase the statistics by a factor of eight for the same computational cost leading to a better understanding of and control over excited state contamination. Our current results, after extrapolation to the continuum limit and physical pion mass are $g_A^{u-d} = 1.21(3)$, $g_T^{u-d} = 1.005(59)$ and $g_S^{u-d} = 0.95(12) $. Further checks of control over all systematic errors, especially in $g_A^{u-d}$, are still being performed. Using results for the flavor-diagonal charges, $g_T^{u} $, $g_T^{d} $ and $g_T^{s}$, we analyze contributions of the quark electric dipole moment to the neutron EDM and the consequences for split SUSY model.
description: Talk at Lattice 2015
title: Wie bezahlt man Open Access richtig? Überlegungen zur Umstellung des Erwerbungshaushaltes der ULB Darmstadt
Creators: name: Stäcker, Thomas
name: Bartsch, Sabine
name: Borek, Luise
name: Hegel, Philipp
Publisher: name: UNSPECIFIED
Year: 2024

description: Die ULB Darmstadt fördert seit geraumer Zeit ideell und praktisch Open Access (OA). Sie hat ein umfangreiches Konzept zur Beratung von Nutzerinnen und Nutzern der TU entwickelt, hat bei der Entwicklung der OA Policy der TU Darmstadt mitgewirkt und Infrastrukturen aufgebaut, um Publikationen im Green, Gold und Diamond OA zu veröffentlichen. Sie beteiligt sich an einschlägigen Ausschreibungen der Deutschen Forschungsgemeinschaft (DFG) zur Finanzierung von OA-Publikationen, befördert mittelbar über DEAL OA oder schließt OA-Transformations- und Rahmenverträge. Hinzu treten Mitgliedschaften in und Förderung von Institutionen und Gremien, die OA unterstützen sowie Unterstützung bzw. Unterzeichnung einschlägiger Initiativen und Aufrufe. Diese Maßnahmen folgen der Überzeugung, dass sich das wissenschaftliche Publikationswesen innerhalb der nächsten Jahre in seinen wesentlichen Teilen auf OA umstellen wird (Schimmer, Geschuhn, Vogler 2015). Es liegt auf der Hand, dass sich dadurch auch die Finanzströme ändern und dass auch der Erwerbungsetat der ULB nicht mehr wie bisher ausschließlich für Medienerwerb durch Kauf oder Lizenzierung, sondern schrittweise für OA als dem primären Publikationsformat eingesetzt wird.
Public and patient involvement in laboratory based research: Recommendations for a PPI contributor education module
Creators: name: Dorris, Emma
name: Bray, Isabella
name: Delaney, Sarah
name: Drummond, Frances
name: Flood, Michelle
name: Kilty, Claire
name: Riordan, Claire
name: Thinnes, Cyrille
Publisher: name: figshare
Year: 2023
Subjects: Inclusive education
Other biomedical and clinical sciences not elsewhere classified

description: This open education resource contains recommended content and format for a PPI contributor education module designed specifically for public and patient involvement (PPI) in laboratory-based health research.The module outline and recommendations were developed using an iterative co-creation process. The module recommendations are not intended to be prescriptive. We encourage the adaptation and amendment of content according to the user's individual needs and context. This resource has been co-produced by biomedical research academics, public and patient involvement (PPI) contributors, and PPI specialists. This is an output of the PPI Ignite Network, which promotes excellence and inspires innovation in public and patient involvement (PPI) in health and social care research in Ireland. www.ppinetwork.ie
Evaluating Social Interactions in Schizotypy Using Ecological Momentary Assessment
Creators: name: Russell, Madisen Taylor
Publisher: name: Purdue University Graduate School
Year: 2024
Subjects: classificationCode: 520302
subject: Clinical psychology

description: Compared to individuals low in schizotypal traits, those with elevated schizotypal traits present with social deficits and are at greater risk for developing schizophrenia-spectrum disorders and other forms of psychopathology. Ecological Momentary Assessment (EMA) is a powerful tool for understanding the real-world behaviors of schizophrenia-spectrum populations. Although studies have effectively utilized EMA to examine important aspects of social interactions (i.e., how often people interact [likelihood], the complexity of the content in these interactions [depth], and how much pleasure they derive from these interactions [enjoyment]) in people with schizophrenia, few have explored differences in social interactions using EMA across schizotypal traits (i.e., positive, negative, and disorganized). In this study, we used EMA to collect data from three universities. Our primary aim was to evaluate if positive, negative, and disorganized schizotypal traits in college students were significantly linked to individuals’ likelihood, depth, and enjoyment of social interactions in their everyday lives. Our secondary aim was to investigate whether affect and stress play a role in individuals’ likelihood, depth, and enjoyment of social interactions. Results revealed that negative schizotypal traits more strongly predicted social interaction depth and enjoyment compared to positive and disorganized traits. Contrary to hypotheses, positive affect was a better predictor of social interaction outcomes than negative affect and stress. Several notable interactions between schizotypal traits and affect also emerged. Overall, this study increases understanding of how schizotypal traits and affect impact daily social interactions. These findings may inform future research aimed at improving and individualizing interventions for social functioning deficits in individuals with elevated positive, negative, and/or disorganized schizotypal traits.
Soziologische Überlegungen zum Verhältnis von institutionell verfaßter "Religion" (Kirche), volkskirchlicher Massen-Basis und "expressiven Gruppen"
Creators: name: Massing, Otwin
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 11 Nr. 4 (1975): Concilium: Internationale Zeitschrift für Theologie, Band 11, Heft 4
Effects of Wind Load on the Mechanics of a PV Power Plant
Creators: name: Romer, P.
name: Pethani, K.B.
name: Beinert, A.J.
Publisher: name: WIP
Year: 2022
Subjects: Photovoltaic Modules and BoS Components
Materials for PV Modules, Durability, Reliability and Accelerated Testing Methods

description: 8th World Conference on Photovoltaic Energy Conversion; 924-929
description: In contrast to the IEC 61215, in real life applications PV modules must withstand inhomogeneous load distributions, for example caused by wind. This work investigates the wind effects onto a PV power plant, containing ten rows with 40 modules each, using computational fluid dynamics simulations coupled to a mechanical finite element method model. The paper focuses on the impact of three factors on the mechanical stability of a PV power plant, namely: Module orientation, wind direction and module inclination angle. A crosswind scenario is found to be most critical. Furthermore, higher module inclination angles result in higher stresses. Finally, general thermomechanical rules are extracted allowing for a deeper understanding of the underlying effects, and therefore help to build more robust PV module installations in the future.
Lead-Free PV Modules: Industrial Realization and Evaluation of Environmental Impact
Creators: name: Gebhardt, P.
name: Hoffmann, S.
name: Wenzel, T.
name: Friedrich, L.
name: Herceg, S.
name: Subasi, D.M.
name: De Rose, A.
name: Lorenz, A.
name: Philipp, D.
Publisher: name: WIP
Year: 2022
Subjects: Photovoltaic Modules and BoS Components
Materials for PV Modules, Durability, Reliability and Accelerated Testing Methods

description: 8th World Conference on Photovoltaic Energy Conversion; 930-934
description: With the large amount of photovoltaic (PV) modules required for a more renewable energy sector, strategies to avoid the toxic material lead, which is still present in most conventional modules today, becomes more and more relevant. This work presents the result of the government-funded research project “BermUDa”, in which the industrial realization and environmental impact of lead-free modules was investigated. The herein chosen approach was to directly replace lead-containing module materials (namely metallization paste and solder cell connectors) with lead-free alternatives, while leaving the industrial production process as unchanged as possible. For this, a large number of preprocessed silicon wafers underwent cell (PERC) and module production, where the processability was tested and compared with conventional lead-containing materials. Subsequently, the performance of the products (cells and PV modules) was tested and compared in terms of electrical performance and reliability in power measurements and accelerated aging tests, respectively. The project thereby demonstrated the feasibility to work with lead-free technologies and adapt currently established industrial processes to produce completely lead-free PV modules that can compete with their lead-containing counterparts in terms of sustainability and costs (LCOE). The work also suggests focus on cell metallization pastes, driven by future market demand, to develop lead-free pastes that can achieve better fine line printing capabilities to allow greater flexibility when converting an existing production line to produce lead-free PV modules.
Technical and Scale Efficiency of Private Commercial Banks in Ethiopia: Using Data Envelopment Analysis (DEA)
Creators: name: Mulualem, Gizaw
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: As banks are the main actors in the financial sector of Ethiopia, their efficiency should be measured appropriately. The main objective of this study is to measure technical and scale efficiency of private commercial banks in Ethiopia for 10 years period from 2009 to 2018. The study adopted descriptive research design and quantitative research approach and the study used secondary source of data observes from all 16 private commercial banks annual report and from the National bank of Ethiopia. To measure technical and scale efficiency of the banks, the study used Data Envelopment Analysis method (DEA). Form the period of 10 years under the study only in one year in 2013 from the entire banks 50% of the sample banks fully efficient. The finding of the study revealed that ADIB, AIB, BB, DGB, EB and ZB were 100% efficient banks and OIB is the least efficient bank in resource utilization and WB were scale inefficient from the entire sample banks. The mean efficiency of PCBs for OTE, PTE, and SE is 91%, 92.33% and 98.56% respectively. Also the finding shows that all inefficient banks need improvement in both input variables, for DEPO the banks slacks values is lies between 3.90% and 23.70%, in case of NON-IE the slack value is lies between 2.70% and 23.70%. For NON-II (output variable) only five banks need improvements which are BOA, BUIB, CBO, NIB and UB with a percentage of 16.85%, 9.23%, 11.53%, 19.31% and 18.48% respectively. According to the outcome of the study mostly the cause of overall technical inefficiency is managerial inefficiency (inefficient utilization of resource) rather than scale inefficiency. The researcher recommends that inefficient banks should learn from the efficient banks especially from ZB and ADIB and banks need to giving updated training to their manager's.
Ice Melt, Sea Level Rise and Superstorms: Evidence from Paleoclimate Data, Climate Modeling, and Modern Observations that 2°C Global Warming is Dangerous
Creators: name: Hansen, James
name: Sato, Makiko
name: Hearty, Paul
name: Ruedy, Reto
name: Kelley, Maxwell
name: Masson-Delmotte, Valerie
name: Russell, Gary
name: Tselioudis, George
name: Cao, Junji
name: Rignot, Eric
name: Velicogna, Isabella
name: Tormey, Blair
name: Donovan, Bailey
name: Kandiano, Evgeniya
name: von Schuckmann, Karina
name: Kharecha, Pushker
name: Legrande, Allegra N.
name: Bauer, Michael
name: Lo, Kwok-Wai
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: We use numerical climate simulations, paleoclimate data, and modern observations to study the effect of growing ice melt from Antarctica and Greenland. Meltwater tends to stabilize the ocean column, inducing amplifying feedbacks that increase subsurface ocean warming and ice shelf melting. Cold meltwater and induced dynamical effects cause ocean surface cooling in the Southern Ocean and North Atlantic, thus increasing Earth's energy imbalance and heat flux into most of the global ocean's surface. Southern Ocean surface cooling, while lower latitudes are warming, increases precipitation on the Southern Ocean, increasing ocean stratification, slowing deepwater formation, and increasing ice sheet mass loss. These feedbacks make ice sheets in contact with the ocean vulnerable to accelerating disintegration. We hypothesize that ice mass loss from the most vulnerable ice, sufficient to raise sea level several meters, is better approximated as exponential than by a more linear response. Doubling times of 10, 20 or 40 years yield multi-meter sea level rise in about 50, 100 or 200 years. Recent ice melt doubling times are near the lower end of the 10-40 year range, but the record is too short to confirm the nature of the response. The feedbacks, including subsurface ocean warming, help explain paleoclimate data and point to a dominant Southern Ocean role in controlling atmospheric CO2, which in turn exercised tight control on global temperature and sea level. The millennial (500-2000 year) time scale of deep ocean ventilation affects the time scale for natural CO2 change and thus the time scale for paleo global climate, ice sheet, and sea level changes, but this paleo millennial time scale should not be misinterpreted as the time scale for ice sheet response to a rapid large human-made climate forcing.
description: 78 pages, 58 figures; submitted to Atmos. Chem. Phys
Study of Hot Spots in Partially Shaded PV Modules with Large-Area Wafers
Creators: name: Chu, H.
name: Klik, C.
name: Halm, A.
name: Mihailetchi, V.D.
Publisher: name: WIP
Year: 2022
Subjects: Photovoltaic Modules and BoS Components
Materials for PV Modules, Durability, Reliability and Accelerated Testing Methods

description: 8th World Conference on Photovoltaic Energy Conversion; 917-920
description: We study the temperature of state-of-the-art PERC modules under various partial shading conditions. Peak temperature of almost 150°C was measured when one of the half cell of an M6 PERC Module was shaded. For our simulated M6 module, the peak temperature is shown to be higher than 140°C when the shading percentage ranging from 15% to 35% (with respective to one cell in the module). Influence of various module layout (e.g. different wafer size from M0 to M12, different number of cells in a string) is studied by performing FEM simulation. Critical temperature of module materials has likely reached. However, several measures exist which can mitigate the high temperature issue of the shaded module, e.g., reducing number of cells in a module string.