cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Super PV Project Innovations - LCOE Assessment and Competitiveness
Creators: name: Haarberg, T.
name: Macé, P.
name: Bosch, E.
name: Ulbikas, J.
name: Denafas, J.
name: Ulyashin, A.G.
Publisher: name: WIP
Year: 2021
Subjects: Finance, Markets and Policies
Costs, Economics, Finance and Markets

description: 38th European Photovoltaic Solar Energy Conference and Exhibition; 1632-1636
description: The performance of innovations in the ongoing Horizon 2020 project SUPER PV are assessed, both for individual innovations and at an integral level, by calculating the LCOE as the key performance variable. New prospective innovations from SUPER PV combined with price reductions and improvements elsewhere in the PV supply chain are evaluated. Such hybrid solutions can form winning combinations in the market and may point towards a flexible business model for non-vertically integrated module manufacturers. Several SUPER PV innovations show clear commercial potential by comparing the LCOE with and without the innovation. Moreover, the "SUPER PV best estimate", i.e., the combination of SUPER PV innovations and cost reductions in segments of the PV supply chain not covered by the project, leads to a total estimated LCOE reduction of 57% compared with the original benchmark at the start of the project, considerably lower than the originally targeted 37% LCOE reduction. At this point the results from SUPER PV are overall promising. Key activities forward are validation of results at the SUPER PV demo-sites across Europe and North Africa and to prepare business models and -plans for market uptake after project end (October 2022).
Electrically pumped single-defect light emitters in WSe$_2$
Creators: name: Schwarz, S.
name: Kozikov, A.
name: Withers, F.
name: Maguire, J. K.
name: Foster, A. P.
name: Dufferwiel, S.
name: Hague, L.
name: Makhonin, M. N.
name: Wilson, L. R.
name: Geim, A . K.
name: Novoselov, K. S.
name: Tartakovskii, A. I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recent developments in fabrication of van der Waals heterostructures enable new type of devices assembled by stacking atomically thin layers of two-dimensional materials. Using this approach, we fabricate light-emitting devices based on a monolayer WSe$_2$, and also comprising boron nitride tunnelling barriers and graphene electrodes, and observe sharp luminescence spectra from individual defects in WSe$_2$ under both optical and electrical excitation. This paves the way towards the realization of electrically-pumped quantum emitters in atomically thin semiconductors. In addition we demonstrate tuning by more than 1 meV of the emission energy of the defect luminescence by applying a vertical electric field. This provides an estimate of the permanent electric dipole created by the corresponding electron-hole pair. The light-emitting devices investigated in our work can be assembled on a variety of substrates enabling a route to integration of electrically pumped single quantum emitters with existing technologies in nano-photonics and optoelectronics.
An Exploration of Adolescent Boys’ Perceptions of Mental Health and Awareness of School-Based Support Systems
Creators: name: Turi, Luca
Publisher: name: University of East London
Year: 2023
Subjects: Adolescent
boys
mental health
support system
perception

description: Historically, there has been a disparity in the ways in which mental health are viewed by males and females, and also in how society has directed and determined the appropriateness and acceptability for these groups to express difficulties with mental health, and to seek support. Males have typically been encouraged to hide their feelings and emotions and to adopt a stoic stance, whilst females have been encouraged to express their feelings and difficulties, and to seek support when needed. This research explored adolescent, cisgender boys’, aged between 11 to 16 years, perceptions and understanding of, and attitudes to mental health, as well as their awareness of support systems available to them, and was conducted from a social constructionist perspective. The views of five cisgender, adolescent males were elicited using semi-structured interviews, conducted virtually. Themes were identified using Thematic Analysis with a deductive perspective. Participants constructed a range of meanings of the term “mental health”, together with varying levels of awareness of support available to them. Differences in how girls and boys perceive and share ideas linked to mental health were identified, with participants uniformly reporting that they felt it is easier for girls to express feelings and mental health difficulties, and to seek help. Participants identified three main sources of support: school, the internet and friends and families. Relationships were deemed important in relation to the seeking of mental health support and also to maintaining positive mental health, and participants felt, generally, that schools were providing adequate mental health support. The internet was thought to be both a positive and negative force in relation to mental health and related support. Participants also found helpful the perceived distance that speaking to others via a screen affords. Although participants felt many traditionally held, gender-based stereotypes linked to mental health still exist, they neither agreed with nor subscribed to them.
A Snapshot of Global PV Markets - The Latest Survey Results on PV Markets and Policies from the IEA PVPS Programme in 2020
Creators: name: Masson, G.
name: Jäger-Waldau, A.
name: Kaizuka, I.
name: Lindahl, J.
name: Donoso Alonso, J.
Publisher: name: WIP
Year: 2021
Subjects: Finance, Markets and Policies
Costs, Economics, Finance and Markets

description: 38th European Photovoltaic Solar Energy Conference and Exhibition; 1625-1627
description: The objective of this paper is to propose a reliable and accurate perspective on key markets and policies related to PV development in 2020 and previously. It aims at offering a clear analysis of how PV markets have developed in 2020, with updated numbers, along with analysis of the policies behind the development. In this paper are displayed and analyzed survey results for the calendar year 2020 concerning PV markets and policies, as well as other key issues. An increasing number of national markets experienced notable growth in 2020 with impacts on policy development. Figures show that over 140 GW of PV systems have been installed in the world last year. Consequently, cumulative capacity crossed the 760 GW mark in 2020.
SocialRES Energy Innovation Framework: A Comparative Analysis of Existing Business Models for RES Cooperative, Aggregators and Crowdfunders
Creators: name: Lizarralde, I.
name: Hamwi, M.
name: Caneva, S.
name: Wilhelm, S.
name: Van Der Zande, D.
name: Abi Akle, A.
name: Samir, B.
name: Kromrey, V.
name: Vedel, D.
name: Lentzen, L.
name: Schneller, A.
name: Hoffmann, J.
name: Kohl, K.
name: Doerpinghaus, J.
name: Schmid, E.
name: Crippa, C.
name: Denny, E.
name: Carroll, J.
name: Wu, H.
name: Regidor, M.
name: Mulero, S.
name: Lacoste, I.
name: Ruiz, R.
name: Campos, S.
name: Otero, E.
name: Brito Jorge, N.
name: Onofre, F.
name: Harder, K.
name: Šimek, T.
name: Leonte, D.
name: Policarp, M.
Publisher: name: WIP
Year: 2021
Subjects: Finance, Markets and Policies
Policies and Scenarios for Renewables, Societal and Global Challenges

description: 38th European Photovoltaic Solar Energy Conference and Exhibition; 1618-1619
description: The energy sector is facing a transition phase in which the development of renewable energies and a greater social participation will be two fundamental measures of this transition. Besides, the liberalization of energy markets permits new actors to be involved and to develop original business models. Based on the ongoing research activities in the frame of the H2020 European project SocialRES, aiming to close non-technological research gaps in the energy sector, this paper contributes to identify how social and environmental standpoints impact different business model in this sector. The aim is to present a framework to analyse the business models within the energy sector and to apply this framework to the analysis of three types of businesses associated with social innovation in the renewable energy sector: Cooperatives, Aggregators and Crowdfunding platforms. The results contribute to energy entrepreneurship and identify innovative attributes applied either in the supply side or in the demand side.
Optimal Allocation Method for a Fair Distribution of the Benefits in an Energy Community
Creators: name: Casalicchio, V.
name: Manzolini, G.
name: Prina, M.G.
name: Moser, D.
Publisher: name: WIP
Year: 2021
Subjects: Finance, Markets and Policies
Policies and Scenarios for Renewables, Societal and Global Challenges

description: 38th European Photovoltaic Solar Energy Conference and Exhibition; 1620-1624
description: Energy communities have been a prominent topic since their adoption in the EU RED II Directive in 2018. However, the allocation of the economic benefit among participants and the assessment of the energy community's composition has been relatively untouched. The aim of this research is to come up with a method for distributing benefits among members in the most efficient way possible, based on their own contributions to the system. This technique will be compared to other feasible allocation strategies, and a single-objective linear programming model that considers energy exchanges and economic expenditures will be utilized to do so. The composition of energy communities has an impact on the optimization result as well as the contribution of each user: when the composition is more heterogeneous, the total effective contribution of the participants is higher, and the overall payoff in the case study increases by 12% as the heterogeneity increases from the lowest to the highest possible. Users contribute differently in this scenario, and their contribution is measured and ranges between 10% and 97%.
The continuum limit of $a_{N-1}^{(2)}$ spin chains
Creators: name: Vernier, Eric
name: Jacobsen, Jesper Lykke
name: Saleur, Hubert
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Building on our previous work for $a_2^{(2)}$ and $a_3^{(2)}$ we explore systematically the continuum limit of gapless $a_{N-1}^{(2)}$ vertex models and spin chains. We find the existence of three possible regimes. Regimes I and II for $a_{2n-1}^{(2)}$ are related with $a_{2n-1}^{(2)}$ Toda, and described by $n$ compact bosons. Regime I for $a_{2n}^{(2)}$ is related with $a_{2n}^{(2)}$ Toda and involves $n$ compact bosons, while regime II is related instead with $B^{(1)}(0,n)$ super Toda, and involves in addition a single Majorana fermion. The most interesting is regime III, where {\sl non-compact} degrees of freedom appear, generalising the emergence of the Euclidean black hole CFT in the $a_{2}^{(2)}$ case. For $a_{2n}^{(2)}$ we find a continuum limit made of $n$ compact and $n$ non-compact bosons, while for $a_{2n-1}^{(2)}$ we find $n$ compact and $n-1$ non-compact bosons. We also find deep relations between $a_{N-1}^{(2)}$ in regime III and the gauged WZW models $SO(N)/SO(N-1)$.
description: 43 pages, 4 figures
title: Jardins de la cathédrale : histoire et archéologie des abords de la cathédrale Saint-Julien (Pays de la Loire, Sarthe, Le Mans) : Rapport de fouille 2021
Creators: name: Augry, Stéphane
Publisher: name: Inrap
Year: 2023

description: Le projet d’aménagement des Jardins de la cathédrale au Mans a entraîné la mise en place de deux diagnostics archéologiques successifs réalisés début 2015 et à l’automne 2016, en amont des travaux sur les 2 800 m² d'emprise. Cette intervention fait suite à la fouille menée en 2014 au niveau de la place du Jet d'eau sur les parcelles attenantes à l'emprise. L'ensemble des opérations prescrites par le service régional de l'archéologie et réalisées par l'Inrap sont intrinsèquement liées ; elles permettent de renouveler grandement nos connaissances de la topographie historique de la ville. Le principal axe de recherche correspond à l'axe 9 de la programmation nationale de la recherche archéologique, en effet les travaux contribuent à mieux documenter le phénomène urbain.
Rational Mixed Tate Motivic Graphs
Creators: name: Agarwala, Susama
name: Patashnick, Owen
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: In this paper, we study the combinatorics of a subcomplex of the Bloch-Kriz cycle complex [4] used to construct the category of mixed Tate motives. The algebraic cycles we consider properly contain the subalgebra of cycles that correspond to multiple logarithms (as defined in [12]). We associate an algebra of graphs to our subalgebra of algebraic cycles. We give a purely graphical criterion for admissibilty. We show that sums of bivalent graphs correspond to coboundary elements of the algebraic cycle complex. Finally, we compute the Hodge realization for an infinite family of algebraic cycles represented by sums of graphs that are not describable in the combinatorial language of [12].
description: 53 pages
Do North-Facing BIPV Facades in Europe Make Sense?
Creators: name: Virtuani, A.
name: Fairbrother, A.
name: Lisco, F.
name: Perret Aebi, L.-E.
name: Wyrsch, N.
name: Ballif, C.
Publisher: name: WIP
Year: 2021
Subjects: Finance, Markets and Policies
Policies and Scenarios for Renewables, Societal and Global Challenges

description: 38th European Photovoltaic Solar Energy Conference and Exhibition; 1608-1611
description: In order to minimize unnecessary land exploitation and to allow PV to play a major role in the decarbonization of Europe, a massive deployment of PV in Europe should occur through the integration of PV in buildings and infrastructures, including the integration of PV on surfaces with a sub-optimal orientation. To assess the meaningfulness of installing PV on surfaces with sub-optimal orientations, we consider firstly the carbon intensity balances for PV. We show that for several cities (Milan, Frankfurt, La Valletta, …), it becomes obvious that a carbon intensity balance is largely in favor of PV not only for the optimal orientations, but also for less favorable ones: i.e. all the facades, including north-facing ones. For other cities/countries with a very low carbon footprint for the local electricity mixes (e.g. Oslo), the installation of PV may in principle not always be justifiable exclusively from a carbon balance point of view. We should however point out that in countries massively relying on nuclear power for their electricity supply – or planning nuclear phase-outs - other elements should be considered simultaneously. We also highlight the fact that installations in surfaces with less optimal orientations (e.g. north-facing facades) should possibly not be incentivized in the first place, but not expressly “prohibited” (or abandoned), as we have demonstrated that, in several countries, they are fully justifiable from the point of view of a carbon footprint balance. In addition, this may still help in promoting and creating “PV-awareness” among citizens and help architects in preserving building harmony/aesthetics.
SimZukunft - Energy Scenarios 2050 for a Small City in Switzerland
Creators: name: Muntwyler, U.
name: Schüpbach, E.
name: Pflugradt, N.
Publisher: name: WIP
Year: 2021
Subjects: Finance, Markets and Policies
Policies and Scenarios for Renewables, Societal and Global Challenges

description: 38th European Photovoltaic Solar Energy Conference and Exhibition; 1612-1617
description: SimZukunft is a P- and D (Pilot- and Demonstration) project supported by the Swiss Federal Office of Energy SFOE. The objective of the project is to define the adjustments of the grid needed in a small Swiss city when implementing the Swiss Energy Strategy 2050. Four detailed energy scenarios and associated load profiles for every single household from the present until 2050 were generated for Burgdorf, a city with 16’000 inhabitants. For each of the four energy scenarios, the impact on the grid was calculated. Impacts on the low voltage grid were analysed in detail, and a comparison was made for each of the four scenarios on how the grid would perform with or without Smart Grid functions and with significant load shifting, decentralized storage and curtailment. It is demonstrated that implementing even the most ambitious scenario “Utopia” (full decarbonization) as outlined in the official Swiss Energy Strategy 2050 until the year 2050 is not a huge challenge, when decent planning and a moderate amount of Smart Grid functionalities are introduced in Burgdorf. To achieve full carbon neutrality and achieve net-zero in Burgdorf in 2050, either large investments in the grid or in Smart Grid functionalities and decentralized storage are needed.
Even harmonic generation in isotropic media of dissociating homonuclear molecules
Creators: name: Silva, R. E. F.
name: Rivière, P.
name: Morales, F.
name: Smirnova, O.
name: Ivanov, M.
name: Martín, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Isotropic gases irradiated by long pulses of intense IR light can generate very high harmonics of the incident field. It is generally accepted that, due to the symmetry of the generating medium, be it an atomic or an isotropic molecular gas, only odd harmonics of the driving field can be produced. Here we show how the interplay of electronic and nuclear dynamics can lead to a marked breakdown of this standard picture: a substantial part of the harmonic spectrum can consist of even rather than odd harmonics. We demonstrate the effect using ab-initio solutions of the time-dependent Schrödinger equation for $H$$_2$$^+$ and its isotopes in full dimensionality. By means of a simple analytical model, we identify its physical origin, which is the appearance of a permanent dipole moment in dissociating homonuclear molecules, caused by light-induced localization of the electric charge during dissociation. The effect arises for sufficiently long laser pulses and the region of the spectrum where even harmonics are produced is controlled by pulse duration. Our results (i) show how the interplay of femtosecond nuclear and attosecond electronic dynamics, which affects the charge flow inside the dissociating molecule, is reflected in the nonlinear response, and (ii) force one to augment standard selection rules found in nonlinear optics textbooks by considering light-induced modifications of the medium during the generation process.
description: 7 pages, 6 figures
Ground Irradiance Modelling: of Key Importance for Designing Nature Inclusive Solar Parks and Agrivoltaics Systems
Creators: name: Van Aken, B.B.
name: Binani, A.
name: Barros, E.
name: Burgers, A.R.
name: Van Der Zee, F.
name: Schotman, A.
name: Cesar, K.
Publisher: name: WIP
Year: 2021
Subjects: PV Applications, Integration and Storage
PV in Infrastructure, on Water and on Vehicles; PV and Agriculture

description: 38th European Photovoltaic Solar Energy Conference and Exhibition; 1596-1600
description: Solar electricity from solar parks in rural areas are cost effective, can be deployed fast and can therefore play an important role in the energy transition. The optimal design of a solar park is, amongst others, affected by income scheme, electricity transport capacity and land lease costs. Important design parameters for utility-scale solar parks, that may affect landscape, biodiversity and soil quality, include ground coverage ratio, size and tilt of the PV tables. Particularly, low tilt PV at high coverage reduces the amount of sunlight on the ground strongly and leads to deterioration of the soil quality over the typical 25-year lifetime. In contrast, vertical PV or an agri-PV design fairly high above the ground leads to more and homogeneous ground irradiance; these designs are favoured for pastures and croplands. In general, the amount and distribution of ground irradiance and precipitation will strongly affect which crops can grow below and between the PV tables and whether this supports the associated food chain. As agrivoltaics is the direct competition between photosynthesis and photovoltaics. Understanding when, where and how much light reaches the ground is key to relate the agri-PV solar park design to the expected agricultural and electricity yields.
Towards developing a framework for circular business model scalability analysis: evidences from fashion retail value chain
Creators: name: Hultberg, Emelie
name: Pal, Rudrajeet
name: Sandberg, Erik
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 500 Naturwissenschaften und Mathematik
subject: 600 Technik, Technologie
subject: 300 Sozialwissenschaften
subject: circular business models
subject: scalability
subject: fashion

description: The concept of circular economy and circular business models have received increasing attention in recent years, especially when it comes to innovation and implementation. The scalability aspect of these models is however less explored. This can also be seen in one off the world’s most resource draining industries the fashion industry. In recent years circular economy has frequently been mentioned in sustainability reports and new business models have emerged. This paper aims to create a framework that can be used for further analysis of scalability of circular business models in the fashion industry. To do this we draw on the literature on business model scalability and apply learnings form these papers to a CBM context in the fashion industry. Through a systematic literature review of 25 articles, we find three different themes of scalability: central strategies, supporting activities and required resources. In this paper, we have further explored the central strategies and their different orientations, namely growth, connection, efficiency and adaptability. The implications of these findings are discussed in relation to circular business action points as stated by 94 fashion companies, and reported in Global Fashion Agenda report. Further research is needed to elaborate these themes for understanding scalability of circular business models in the fashion industry, explore the underpinning logics, and prescribe a comprehensive framework on its basis.
title: Well-posedness analysis of multicomponent incompressible flow models
Creators: name: Bothe, Dieter
name: Druet, Pierre-Etienne
Publisher: name: Springer International Publishing
Year: 2024

description: In this paper, we extend our study of mass transport in multicomponent isothermal fluids to the incompressible case. For a mixture, incompressibility is defined as the independence of average volume on pressure, and a weighted sum of the partial mass densities stays constant. In this type of models, the velocity field in the Navier–Stokes equations is not solenoidal and, due to different specific volumes of the species, the pressure remains connected to the densities by algebraic formula. By means of a change of variables in the transport problem, we equivalently reformulate the PDE system as to eliminate positivity and incompressibility constraints affecting the density, and prove two type of results: the local-in-time well-posedness in classes of strong solutions, and the global-in-time existence of solutions for initial data sufficiently close to a smooth equilibrium solution.
Density Functional Theory based Study of Chlorine Doped WS2-metal Interface
Creators: name: Chanana, Anuja
name: Mahapatra, Santanu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Investigation of a TMD-metal interface is essential for the effective functioning of monolayer TMD based field effect transistors (FETs). In this work, we employ Density Functional Theory (DFT) calculations to analyze the modulation of the electronic structure of monolayer WS2 with chlorine doping and the relative changes in the contact properties when interfaced with gold and palladium. We initially examine the atomic and electronic structures of pure and doped monolayer WS2 supercell and explore the formation of mid gap states with band splitting near the conduction band edge. Further we analyze the contact nature of the pure supercell with Au and Pd. We find that while Au is physiosorped and forms n-type contact, Pd is chemisorped and forms p-type contact with a higher valence electron density. Next, we study the interface formed between the Cl-doped supercell and metals and observe a reduction in the Schottky barrier height (SBH) in comparison to the pure supercell. This reduction found is higher for Pd in comparison to Au which is further validated by examining the charge transfer occurring at the interface. Our study confirms that Cl doping is an efficient mechanism to reduce the n-SBH for both Au and Pd which form different types of contact with WS2.
description: 5 pages 6 figures accepted in Applied Physics Letters
Von der Freude und der Trauer, von der Heiterkeit und der Melancholie und vom Humor
Creators: name: Metz, Johann Baptist
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 10 Nr. 5 (1974): Concilium: Internationale Zeitschrift für Theologie, Band 10, Heft 5
The Mediating role of Employee Engagement in the Relationship between Perceived Organizational Support and Employee Performance - the case of World Vision Ethiopia
Creators: name: Hiwot, Tsegaye
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: This study was conducted to examine the mediating role of employee engagement in the relationship between perceived organizational support and employee performance in the case of World Vision Ethiopia. A theoretical foundation was compiled for the study based on the literature review from renowned authors and journals in the area of perceived organizational support employee engagement, and employee performance. The researcher used explanatory research design and both primary and secondary data are utilized. For this study stratified random sampling technique was used and 162 employees of World Vision Ethiopia in Addis Ababa were selected as the sample of the study. With questionnaires from 156 employees, the researcher empirically tested that perceived organizational support, employee engagement and employee performance have positive and significant relationship and employee engagement has a mediating role in using descriptive statistics, one-way ANOVA, Pearson correlation analysis and regression analysis. The result show that perceived organizational support and employee engagement have significant positive correlation (r= 0.798, P<0.01), perceived organizational support and employee performance have significant positive correlation (r= .598, P<0.01) and employee engagement and employee performance have significantly positive correlations (r= 0.660, P<0.01). Furthermore, the regression analysis shows that perceived organizational support has direct, positive and significant effect on employee performance with the beta value of (.23, P<0.05) and employee engagement has indirect increasing significant mediating role in the relationship between perceived organizational support and employee performance (0.26, CI: .1253, .3931). Therefore, World Vision Ethiopia need to work in increasing the level of employee engagement to use the maximum level of employees' potential.
True Cost of Solar Hydrogen - Levelised Cost of Hydrogen in Europe 2021-2050
Creators: name: Vartiainen, E.
name: Breyer, C.
name: Moser, D.
name: Román Medina, E.
name: Busto, C.
name: Masson, G.
name: Bosch, E.
name: Jäger-Waldau, A.
Publisher: name: WIP
Year: 2021
Subjects: Finance, Markets and Policies
Costs, Economics, Finance and Markets

description: 38th European Photovoltaic Solar Energy Conference and Exhibition; 1601-1607
description: Green hydrogen will be an essential part of the future 100% sustainable energy and industry system. Up to one third of the required solar and wind electricity would eventually be used for water electrolysis to produce hydrogen, increasing the cumulative electrolyser capacity to about 17 TWel by 2050. Key method applied in this research are a learning curve approach for the key technologies, i.e. solar photovoltaic (PV) and water electrolysers, and levelised cost of hydrogen (LCOH). Sensitivities for the hydrogen demand and various input parameters are considered. Electrolyser capital expenditure (CAPEX) for a large utility-scale system is expected to decrease from current 400 €/kWel to 240 €/kWel by 2030 and to 80 €/kWel by 2050. With the continuing solar PV cost decrease, this will lead to an LCOH decrease in Europe from current 47-81 €/MWhH2,LHV (1.6-2.7 €/kgH2) to 31-54 €/MWhH2,LHV (1.0-1.8 €/kgH2) by 2030 and 16-27 €/MWhH2,LHV (0.5-0.9 €/kgH2) by 2050, depending on the location. The share of PV electricity cost in the LCOH will increase from the current 63% to 74% by 2050.
Simulating the Energy Yield of Bifacial Photovoltaic Modules Installed on Carports or Canopies
Creators: name: Robledo Bueno, J.
name: Leloux, J.
name: Sarr, B.
name: Gueymard, C.A.
name: Driesse, A.
name: Drouin, P.-F.
Publisher: name: WIP
Year: 2021
Subjects: PV Applications, Integration and Storage
PV in Infrastructure, on Water and on Vehicles; PV and Agriculture

description: 38th European Photovoltaic Solar Energy Conference and Exhibition; 1583-1587
description: The installation of solar photovoltaic (PV) modules on carports or canopies is a relatively popular application of PV power generation. This advantageously combines power generation and shaded parking for vehicles in the case of carports, or power generation and shelter and shade for people, animals or goods with little waste of land. In parallel, bifacial technology has experienced a swift increase in its share of the PV market in recent years, which opens the door to various improvements and even new kinds of solutions. However, in current state-ofthe-art PV simulation tools, the added complexity introduced by bifacial technology and by the complex geometry of PV installations on carports or canopies is still not fully covered and the evaluation of the bifacial energy gain (BEG) is not always accurate. In this work, a novel simulation tool is introduced, which benefits from the latest 3D evaluation libraries incorporated into the Graphic Processor Unit (GPU) of modern computers, as developed for the video game industry. This novel approach provides an evaluation of the BEG with a spatial resolution that is similar to what is achievable with backward ray-tracing techniques but within a tiny fraction of the required simulation time. With this, it is possible to simulate the energy yield of the PV plant accurately and in detail, such as for commercial projects.
MPEC 2024-R38 : 2024 RT
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 RT

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Lessons Learned from Simulating the Energy Yield of an Agrivoltaic Project with Vertical Bifacial Photovoltaic Modules in France
Creators: name: Robledo Bueno, J.
name: Leloux, J.
name: Sarr, B.
name: Gueymard, C.A.
name: Driesse, A.
name: Drouin, P.-F.
name: Ortega, S.
name: André, D.
Publisher: name: WIP
Year: 2021
Subjects: PV Applications, Integration and Storage
PV in Infrastructure, on Water and on Vehicles; PV and Agriculture

description: 38th European Photovoltaic Solar Energy Conference and Exhibition; 1588-1595
description: Agrivoltaics is a novel application of solar (PV) photovoltaic power generation where the PV modules are installed in the same field as where crops are also cultivated. This is advantageous because this combines land use while keeping attractive productions for both agricultural crops and power generation. Several configurations currently exist for these agrivoltaic installations, including rooftop PV generators, ground-mounted agrivoltaic plants, and PV installations on greenhouses. One particularly innovative kind of agrivoltaic application uses rows of vertical bifacial PV modules. In recent years, bifacial technology has experienced a swift increase in its share of the PV market, which opens the door to performance improvements and even new kinds of solutions. However, in the current state-of-the-art PV simulation tools, the added complexity introduced by bifacial technology is still not fully covered. This is even more true for agrivoltaic PV plants with vertical bifacial modules. Here, we present a summary of our most relevant findings while assessing the energy yield of an agrivoltaics plant planned with vertical bifacial PV modules in the south of France. The evaluation of the bifacial energy gain (BEG) has been carried out with a novel simulation tool based on the use of the latest 3D evaluation libraries incorporated into the Graphic Processor Units (GPU) of modern computers. These were developed for the video game industry, and they offer many interesting advantages for such bifacial PV applications. We also discuss the main challenges that still lie ahead in the path to a better design optimization and assessment of the energy yield of such vertical PV installations.
Period ratios for standing kink and sausage modes in magnetized structures with siphon flow on the Sun
Creators: name: Yu, Hui
name: Chen, Shao-Xia
name: Li, Bo
name: Xia, Li-Dong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Standing oscillations with multiple periods were found in a number of atmospheric structures on the Sun. The ratio of the period of the fundamental to twice the one of its first overtone, $P_1/2P_2$, is important in applications of solar magneto-seismology. We examine how field-aligned flows impact $P_1/2P_2$ of standing modes in solar magnetic cylinders. For coronal loops, the flow effects are significant for both fast kink and sausage modes. For kink ones, they reduce $P_1/2P_2$ by up to 17\% relative to the static case even when the density contrast between the loop and its surroundings approaches infinity. For sausage modes, the reduction in $P_1/2P_2$ due to flow is typically $\lesssim 5.5\%$ compared with the static case. However, the threshold aspect ratio, only above which can trapped sausage modes be supported, may increase dramatically with the flow magnitude. For photospheric tubes, the flow effect on $P_1/2P_2$ is not as strong. However, when applied to sausage modes, introducing field-aligned flows offers more possibilities in interpreting the multiple periods recently measured. We conclude that field-aligned flows should be taken into account to help better understand what causes the departure of $P_1/2P_2$ from unity.
description: 23 pages, 9 figures, accepted for publication in Research in Astronomy and Astrophysics
Response of the wheat mycobiota to flooding revealed substantial shifts towards plant pathogens
Creators: name: Francioli, Davide
name: Cid, Geeisy
name: Hajirezaei, Mohammad-Reza
name: Kolb, Steffen
Publisher: name: Humboldt-Universität zu Berlin
Year: 2022
Subjects: subject: wheat
subject: flooding
subject: mycobiota
subject: metabarcoding analyses
subject: fungal pathogens
subject: 570 Biologie

description: Rainfall extremes are intensifying as a result of climate change, leading to increased flood risk. Flooding affects above- and belowground ecosystem processes, representing a substantial threat to crop productivity under climate change. Plant-associated fungi play important roles in plant performance, but their response to abnormal rain events is unresolved. Here, we established a glasshouse experiment to determine the effects of flooding stress on the spring wheat-mycobiota complex. Since plant phenology could be an important factor in the response to hydrological stress, flooding was induced only once and at different plant growth stages, such as tillering, booting and flowering. We assessed the wheat mycobiota response to flooding in three soil-plant compartments (phyllosphere, roots and rhizosphere) using metabarcoding. Key soil and plant traits were measured to correlate physiological plant and edaphic changes with shifts in mycobiota structure and functional guilds. Flooding reduced plant fitness, and caused dramatic shifts in mycobiota assembly across the entire plant. Notably, we observed a functional transition consisting of a decline in mutualist abundance and richness with a concomitant increase in plant pathogens. Indeed, fungal pathogens associated with important cereal diseases, such as Gibberella intricans, Mycosphaerella graminicola, Typhula incarnata and Olpidium brassicae significantly increased their abundance under flooding. Overall, our study demonstrate the detrimental effect of flooding on the wheat mycobiota complex, highlighting the urgent need to understand how climate change-associated abiotic stressors alter plant-microbe interactions in cereal crops.
Photograph of a group of officers and officials
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Soldiers
valueUri: http://id.worldcat.org/fast/1125233
subject: History
valueUri: http://id.worldcat.org/fast/958235
subject: Abkhazi, Konstantine, 1867-1923
subject: Armed Forces--Officers
valueUri: http://id.worldcat.org/fast/814617

description: A photograph of a group of officers and officials. Separate list in Russian with English translation identifies [Konstantine?] Abkhazi as no. 22.
HST Imaging of Dust Structures and Stars in the Ram Pressure Stripped Virgo Spirals NGC 4402 and NGC 4522: Stripped from the Outside In with Dense Cloud Decoupling
Creators: name: Abramson, A.
name: Kenney, J.
name: Crowl, H.
name: Tal, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We describe and constrain the origins of ISM structures likely created by ongoing ICM ram pressure stripping in two Virgo Cluster spirals, NGC 4522 and NGC 4402, using HST BVI images of dust extinction and stars, as well as supplementary HI, Halpha, and radio continuum images. This is the highest-resolution study to date of the physical processes that occur during an ICM-ISM ram pressure stripping interaction, ram pressure stripping's effects on the multi-phase, multi-density ISM, and the formation and evolution of ram-pressure-stripped tails. In dust extinction, we view the leading side of NGC 4402 and the trailing side of NGC 4522; we see distinct types of features in both galaxies. NGC 4522 has experienced stronger, more recent pressure and has the jellyfish morphology characteristic of some ram pressure stripped galaxies. Its stripped tail extends up from the disk plane in continuous upturns of dust and stars curving ~2 kpc above the disk plane. A kinematically and morphologically distinct extraplanar arm of young, blue stars and ISM extends above a mostly-stripped portion of the disk, and between it and the disk plane are decoupled dust clouds. NGC 4402 contains long dust ridges, suggesting that large parts of the ISM are being pushed out at once. Both galaxies contain long ridges of polarized radio continuum emission indicating the presence of large-scale ordered magnetic fields. We propose that magnetic fields could bind together gas of different densities, causing nearby gas of different densities to be stripped at the same rate and creating the large, coherent dust ridges and upturns. A number of factors that play roles in determining what types of structures form as a result of ram pressure: ram pressure strength and history, the location within the galaxy relative to the leading side, and pre-existing substructure in the ISM that may be bound together by magnetic fields.
description: AJ accepted; 22 pages, 22 figures
BRIDGING THE GAP: INTEGRATING POLITICAL ECONOMY AND SOCIAL DETERMINANTS TO ADVANCE HEALTH INEQUALITY RESEARCH
Creators: name: Sarah, Elizabeth Walker
name: David, Michael Hughes
Publisher: name: CARSON JOURNAL
Year: 2024
Subjects: Social Determinants of Health (SDH), Health Disparities, Well-being, Global Health, Health Inequality

description: The World Health Organization's definition of health as complete physical, mental, and social well-being, rather than mere absence of disease, underlines the significance of universal well-being. However, access to such well-being is far from uniform across the global population. Over the past three decades, these disparities have been illuminated by the framework of "social determinants of health" (SDH), as defined by the WHO. SDH encompasses the conditions in which individuals are born, raised, reside, labor, and age, serving as the fundamental drivers of these conditions. These factors range from economic measures like GDP per capita to community aspects such as educational institutions, public transportation, and even the prevalence of fast-food chains. While the availability and quality of medical care influence health outcomes, they have a more limited role in determining the initial susceptibility to illness. This abstract underscores the essential role of SDH in shaping health disparities globally, reflecting the complex interplay between social, economic, and environmental factors that impact individuals' well-being.
Value Chain Analysis of Coffee the Case of Yirgacheffe Coffee Farmers Cooperatives Union (YCFCU)
Creators: name: Yilma, Beyenech
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The study was conducted to analyze coffee value chain in Gedio Zone Yirgacheffe Coffee Farmers Cooperatives Union (YCFCU). Yirgacheffe coffee is definitely among the most distinguished coffee varieties grown in Southern Ethiopia, a region known for its fine coffees The specific objectives of the study were to identify the coffee value chain in YCFCU, to examine the relationship between actors and assess their linkage, to indicate each actor role in the value creation activities and to explain the key factors that hamper the coffee value chain in the study area. The study was based on data gathered from one hundred twenty one coffee producers. Descriptive statistics and correlation analysis methods were employed to analyze the data. Result from correlation analysis using indicates that five variables are significantly affecting performance of value chain of coffee. These are actors' roles, marketing relation, competition issues, government issue and market issue. The relative importance of marketing relation is high than other independent variables. Therefore, the implication is that actors should take an active role in managing all aspects of their performance of value chain analysis of coffee in the study area
Geographical Distribution of Solar Urban Potential for Vehicle Integrated Photovoltaics
Creators: name: Centeno Brito, M.C.
name: Santos, T.
name: Amaro E Silva, R.
name: Pera, D.M.
name: Moura, F.
name: Rocha, J.
Publisher: name: WIP
Year: 2021
Subjects: PV Applications, Integration and Storage
PV in Infrastructure, on Water and on Vehicles; PV and Agriculture

description: 38th European Photovoltaic Solar Energy Conference and Exhibition; 1569-1573
description: Solar-powered electric vehicles can accelerate the transition to electric mobility, reducing charging needs and operating costs. In the urban environment, however, their potential is somewhat reduced by shadowing from neighbouring buildings. Here we estimate the irradiation losses and solar extended driving range for anywhere on the globe using an empirical model based on numerical simulation of solar radiation losses in simplified urban layouts. Modelling shows solar extended driving ranges above 20-30 km/day/kWp for a wide range of geographies, exceeding 40 km/day/kWp for most of the USA, China, Australia, parts of Africa and South America. The potential of parked vehicles is similar to that of driving vehicles for mid and high latitudes. These results highlight that a significant fraction of daily urban commuting can be powered by vehicle integrated photovoltaics.
Sustainable Optimization of PV Value Chain for Electromotive Applications
Creators: name: Popescu, F.
name: Wendlandt, S.
Publisher: name: WIP
Year: 2021
Subjects: PV Applications, Integration and Storage
PV in Infrastructure, on Water and on Vehicles; PV and Agriculture

description: 38th European Photovoltaic Solar Energy Conference and Exhibition; 1574-1578
description: While PV is poised to become the leading renewable energy source in the EU and globally, both in terms of capacity and net output, its low spatial power density poses challenges in its effective use and distribution. One of the emerging use-cases for PV power is in electromotive applications, ranging from automotive (Vehicle integrated PV – VIPV – for cars, buses, trucks), rail-transportation (urban and extra-urban rail) and marine (recreational boats and sea- and inland waterway transport). Each of these has a particular topology, both of proximity to stationary PV, energy density of storage, and available surface area for mobile PV (which integrates VIPV with fixed PV assets dedicated to vehicle fleet electricity supply). In order to maximize benefit the entire PV Value chain in these applications, we identify the individual importance of several necessary components in planning and operational intelligence, and provide relevant examples based on current and emerging technology as well as an integrative framework for the modeling of these and related value chains based on energy flow modeling.
Modeling and Simulation of Multipump Photovoltaic Irrigation Systems
Creators: name: Ramirez Ledesma, J.
name: Almeida, R.H.
name: Narvarte Fernández, L.
Publisher: name: WIP
Year: 2021
Subjects: PV Applications, Integration and Storage
PV in Infrastructure, on Water and on Vehicles; PV and Agriculture

description: 38th European Photovoltaic Solar Energy Conference and Exhibition; 1579-1582
description: In photovoltaic (PV) irrigation applications, models that allow estimating the output of a single variable speed driven (VSD) pump connected to a PV generator are available, such as the SISIFO software (www.sisifo.info). In real systems, it is common to connect several pumps in parallel to the same generator instead of a single pump. In this work, a model is generated that allows estimating the pumped water volume in a system that, sharing the same PV generator, is formed by a group of frequency-synchronized VSD pumps connected in parallel, to which a second group of frequency-synchronised VSD pumps can be optionally added. This model makes it possible to establish the number of active pumps in each group and their working frequency, depending on the PV power available, optimising some criteria. In this version, the criterion is to achieve the highest pumping volume during the irrigation period considered. This version is now freely available in the online application SISIFO.