cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Damping of prominence longitudinal oscillations due to mass accretion
Creators: name: Ruderman, Michael
name: Luna, Manuel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the damping of longitudinal oscillations of a prominence thread caused by the mass accretion. In this model we considered a thin curved magnetic tube filled with the plasma. The parts of the tube at the two sides of the thread are filled with hot rarefied plasma. We assume that there are flows of rarefied plasma toward the thread caused by the plasma evaporation at the magnetic tube footpoints. Our main assumption is that the hot plasma is instantaneously accommodated by the thread when it arrives at the thread, and its temperature and density become equal to those of the thread. Then we derive the system of ordinary differential equations describing the thread dynamics. We consider linear and nonlinear oscillation. The nonlinearity reduces the damping time, however this reduction is small. The damping time is inversely proportional to the accretion rate. We also obtain that the oscillation periods decrease with time. However even for the largest initial oscillation amplitude considered in our article the period reduction does not exceed 20%. We conclude that the mass accretion can damp the motion of the threads rapidly. Thus, this mechanism can explain the observed strong damping of large-amplitude longitudinal oscillations. In addition, the damping time can be used to determine the mass accretion rate and indirectly the coronal heating.
description: Accepted for publication in Astronomy and Astrophysics
SOLAR-ERA.NET Cofund - European Network of National and Regional Research and Innovation Programmes - Recent Developments of Joint Transnational Calls
Creators: name: Nowak, S.
name: Gutschner, M.
name: Biel, T.
name: Oberholzer, S.
name: Hünnekes, C.
name: Chakanga, K.
name: Horbelt, R.
name: Schulte, M.
name: Falcón Morales, S.
name: Ruiz, D.
name: Del Rio, G.
name: Rigole, P.-J.
name: Walla, T.
name: Bernsen, O.
name: Polain, L.
name: De Clercq, E.
name: Afentaki, E.
name: Leptos, P.
name: Carrere, T.
name: Bain, P.
name: Karaösz, K.
name: Covello, A.
name: Goodbrook, A.
name: Osinski, J.
name: Lutter, E.
name: Hipfinger, A.
name: Rohrmeister, U.
name: Friedmann, G.
Publisher: name: WIP
Year: 2018
Subjects: PV Economics, Markets and Policies
PV-Related Policies, Strategies and Societal Issues

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 2188-2192
description: SOLAR-ERA.NET is a network that brings together more than 20 RTD and innovation programmes in the field of solar electricity technologies in the European Research Area. The network of national and regional funding organisations has been established in order to increase transnational cooperation between RTD and innovation programmes and to contribute to achieving the objectives of the Strategic Energy Technology Plan (SET-Plan) through dedicated transnational activities (especially transnational calls). Through the support of the funding organisations, some 60 MEUR have been mobilised for transnational RTD and innovation projects through the first four joint calls carried out. SOLAR-ERA.NET was an EU funded FP7 project running from 2012 to 2016. Within the H2020, the network continues to work in the ERA-NET Cofund scheme. In this contribution, results are presented for the transnational SOLAR-ERA.NET calls.
Dokumente zur Einführung der Frauenordination in der Evangelisch-Lutherischen Kirche in Baden (ELKiB)
Creators: name: Kelter, Gert
Publisher: name: Lutherische Beiträge
Year: 1970

description: Lutherische Beiträge, Bd. 16 Nr. 4 (2011): Lutherische Beiträge, Band 16, Heft 4
Water masers in Compton-thick AGN I. Detailed study of the new water megamaser in IRAS15480-0344
Creators: name: Castangia, P.
name: Tarchi, A.
name: Caccianiga, A.
name: Severgnini, P.
name: Della Ceca, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A relationship between the water maser detection rate and large nuclear column densities in AGN has often been cited in the literature. Indeed, detailed studies of luminous water masers, typically associated with the nuclear activity, allow us to investigate the innermost regions of AGN, with an impact on the still debated Unified Model for this class of objects.We have recently entertained a search for maser emission in a well-defined sample of Compton-thick AGN aimed at investigating, on firm statistical bases, the aforementioned relationship. While the survey is still ongoing, and is matter of a forthcoming publication, a new luminous water maser has been detected in the lenticular (field) S0 galaxy IRAS15480-0344, whose origin, associated with an accretion disc or a nuclear outflow/jet, needs to be assessed. Multi-epoch single-dish observations and VLBI measurements were performed to investigate the distribution, spatial extension, and variability of the maser emission in order to infer the main characteristics of the water megamaser. The new detection in IRAS15480-0344 is reported: a megamaser with a total single-dish isotropic luminosity of ~200 Lsun and a profile composed of two main features, a broad line with a full width to half maximum (FWHM) linewidth of ~90 km/s and a narrow (FWHM<1 km/s) one. We performed a follow-up to the detection with the Very Long Baseline Array (VLBA) and confidently detected only the narrow component, which is coincident with the nuclear radio continuum emission detected with the Very Large Array at 8.4 GHz. A weak narrow feature has also been detected in the velocity range of the broad feature and is located 15 pc to the north-west with respect to the stronger component. Neither maser spot is associated with the compact radio continuum sources derived from the same VLBA dataset. [Abridged]
description: 9 pages, 5 figures, accepted for publication in A&A
Troublesome aspects of the Renyi-MaxEnt treatment
Creators: name: Plastino, A.
name: Rocca, M. C.
name: Pennini, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study in great detail the possible existence of a Renyi-associated thermodynamics, with negative results. In particular, we uncover a hidden relation in the Renyi's variational problem (MaxEnt). This relation connects the two associated Lagrange multipliers (Canonical Ensemble) with the mean energy $$ and the Renyi parameter $α$. As a consequence of such relation, we obtain anomalous Renyi-MaxEnt thermodynamic results.
description: 16 pages. No figures
Discrete Breathers in a Mass-in-Mass Chain with Hertzian Local Resonators
Creators: name: Wallen, S. P.
name: Lee, J.
name: Mei, D.
name: Chong, C.
name: Kevrekidis, P. G.
name: Boechler, N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We report on the existence of discrete breathers in a one-dimensional, mass-in-mass chain with linear intersite coupling and nonlinear Hertzian local resonators, which is motivated by recent studies of the dynamics of microspheres adhered to elastic substrates. After predicting theoretically the existence of the discrete breathers in the continuum and anticontinuum limits of intersite coupling, we use numerical continuation to compute a family of breathers interpolating between the two regimes in a finite chain, where the displacement profiles of the breathers are localized around one or two lattice sites. We then analyze the frequency-amplitude dependence of the breathers by performing numerical continuation on a linear eigenmode (vanishing amplitude) solution of the system near the upper band gap edge. Finally, we use direct numerical integration of the equations of motion to demonstrate the formation and evolution of the identified localized modes, including within settings that may be relevant to future experimental studies.
Water harvesting cube
Creators: name: Ferwati, M. Salim
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Water scarcity is at the center of the world’s greatest challenges, including famine, disease, and sustainable development. In many countries, there are active researches aimed at improving the supply of fresh water through actions such as seawater desalination and water recycling. Researchers are also working, on a smaller scale, to harvest water from the atmosphere to serve individual households or small communities. Cool surface condensation, fog catchers, and humidity harvesting are three examples of sustainable approaches that relied on affordable and simple equipment. This paper aims to introduce the possibility of using water condensation to generate potable water by using a self-sustainable-energy device. The device is scalable; being able to meet the needs of a single household and up to a residential district. The focus of this research is on the function of a water-harvesting cube. It consists of a set of solar panels, an energy converter, a dehumidifier(s), a water treatment component, and a water storage tank. The sum of all parts forms a 1 × 1 × 1 m cube. The premise of the proposal is that one dehumidifier can produce a sufficient amount of pure water for an individual’s various daily uses. The researcher conducted two experiments during the summer of 2018, one in London, Ontario, Canada, and the other in Doha, Qatar. The result showed that in an environment of 50–70% relative humidity, a single dehumidifier could produce up to 15 L of pure water per day. The research here proves that the proposed water harvesting cube is efficient, affordable, and requires low maintenance.Other Information Published in: SN Applied Sciences
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s42452-019-0730-y
Enhancing Solar Research by Using ICT and Explorative Web-Based Methods for Communication, Education and Training
Creators: name: Polo López, C.S.
name: Frontini, F.
name: Bonomo, P.
Publisher: name: WIP
Year: 2018
Subjects: PV Economics, Markets and Policies
PV-Related Policies, Strategies and Societal Issues

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 2199-2204
description: Within a collaborative research project relating to solar technology and specifically to BIPV, building integrated PV systems (project Construct PV, FP7-ENERGY-2011-2), an important part awaits the effective communication of research results to overcome non technological barriers and the transfer of training and information to a wide range of users and target audience. In this context, new communication strategies, tools and above all new methods of education and training can be implemented in a new way, recognizing an added value of ICT, information and communication technologies, and Web-based methods to stimulate a discussion on the important role of solar energy in buildings and to promote two-way exchange of knowledge, from research to public and from public to research process. Computer-mediated activities along with real-time participatory ITC tools were used in an interactive Webinar to stimulate and encourage participation and, in turn, to gather useful feedback for the project. Furthermore, Web-based utilities (a BIPV Web-library and Web-design tool), were developed as useful tools dedicated to architects, engineers, manufacturers, installers and other interested stakeholders. This paper presents an applied example of successful collaboration between research and education, aimed at creating greater links strengthening the knowledge and competence of relevant stakeholders in solar energy.
Flexible coplanar waveguide strain sensor based on printed silver nanocomposites
Creators: name: Ali, Shawkat
name: Hassan, Arshad
name: Khan, Saleem
name: Bermak, Amine
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: subject: Nanotechnology
subject: FOS: Nanotechnology

description: This paper presents a robust approach towards the design and fabrication of a stretchable coplanar waveguide monopole strain sensor that measures the tensile strain through a linear shift in the resonance frequency unlike the conventional patch antennas strain sensors. The increment in physical length upon application of stretching force on the sensor results into lowering of the resonance frequency, which is correlated with tensile strain. Being a 2d structure, the sensor can easily be deployed on a planar surface to determine the tensile strain. Sensor parameters are optimized through simulations in high frequency structure simulator software. Silver nanowires (AgNWs) based solution is screen printed using a shadow mask on an elastomeric polydimethylsiloxane substrate. The operating frequency of the sensor is 2.49 GHz at ambient condition and it goes down to 2.31 GHz at 6.1% stretching. The simulated sensitivity of the sensor is 0.072 MHz/µm and measured sensitivity of 0.076 MHz/µm has been tested for more than 200 cycles, clearly illustrating the robustness of the proposed approach. These promising results show that this sensor can successfully be implemented for printed wearable applications targeted for monitoring of strain related activities.Other Information Published in: SN Applied Sciences
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s42452-019-0665-3
Lessons Learned for Stand-Alone Photovoltaic System Projects Financed by Governments in Developing Countries: The Case of the Río Ibáñez Commune in the Aysén Region, Chile
Creators: name: Osorio-Aravena, J.C.
name: Muñoz-Cerón, E.
Publisher: name: WIP
Year: 2018
Subjects: PV Economics, Markets and Policies
PV-Related Policies, Strategies and Societal Issues

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 2193-2198
description: This study presents a descriptive analysis, from a technical perspective, of a rural electrification project
managed by sub-national government entities in developing countries. It was conducted through a case study applied
to a project involving 26 energy access solutions implemented through photovoltaic technology. The analysis is based
on information gathered from technical inspections performed three years after the commissioning of the project, in
consideration of the guidelines for guaranteeing the quality of stand-alone photovoltaic systems proposed by the
International Energy Agency Photovoltaic Power System Programme. The article reveals that despite the fact that most
of the solutions have functioned within acceptable margins, a need to improve this type of project in all of the sectors
involved; public, business and citizen, is detected. The lessons learned and proposals for improvement are also
presented, with the overall aim being for projects of this type, current and future, to move towards success and
sustainability with public management, the competence of local professionals and the socio-technical aspects of the
inhabitants playing an essential role.
Safety experiments for small robots investigating the potential of soft materials in mitigating the harm to the head due to impacts
Creators: name: Alhaddad, Ahmad Yaser
name: Cabibihan, John-John
name: Hayek, Ahmad
name: Bonarini, Andrea
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Control engineering, mechatronics and robotics

description: There is a growing interest in social robots to be considered in the therapy of children with autism due to their effectiveness in improving the outcomes. However, children on the spectrum exhibit challenging behaviors that need to be considered when designing robots for them. A child could involuntarily throw a small social robot during meltdown and that could hit another person’s head and cause harm (e.g. concussion). In this paper, the application of soft materials is investigated for its potential in attenuating head’s linear acceleration upon impact. The thickness and storage modulus of three different soft materials were considered as the control factors while the noise factor was the impact velocity. The design of experiments was based on Taguchi method. A total of 27 experiments were conducted on a developed dummy head setup that reports the linear acceleration of the head. ANOVA tests were performed to analyze the data. The findings showed that the control factors are not statistically significant in attenuating the response. The optimal values of the control factors were identified using the signal-to-noise (S/N) ratio optimization technique. Confirmation tests at the optimal parameters (e.g. thickness of 3 mm or 5 mm) showed better responses as compared to other conditions. Designers of social robots should consider the application of soft materials to their designs as it helps in reducing the potential harm to the head.Other Information Published in: SN Applied Sciences
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s42452-019-0467-7
Application of Metastructures for Targeted Low-Frequency Vibration Suppression in Plates
Creators: name: Ghachi, Ratiba F.
name: Mohamed, Ahmed S.
name: Renno, Jamil
name: Alnahhal, Wael
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: subject: Immunology
subject: FOS: Clinical medicine
subject: Microbiology
subject: FOS: Biological sciences

description: Purpose We present an approach that combines finite element analysis and genetic algorithms to find the optimal configuration of local resonators created in the host structure to suppress their vibration in a target low-frequency range. Such local resonators are indeed metastructures that alter the wave propagation in the host structure, thereby attenuating their vibration. Methods To demonstrate the approach, we cutout zigzag resonators in a thin aluminium plate that is subjected to base-excitations. The thin plate and the zigzag cutouts are modelled using the finite element method, and the optimal location and optimal tip mass of the zigzag cutouts are obtained using genetic algorithms through iterative simulations. Two case studies are considered, and the fitness function used in the optimization problem is the plate’s root mean square of vibration in a specific low-frequency range. In the first case, the plate has two aligned zigzag cutouts. In this case, the objective is to find the optimal linear location and tip masses of the two zigzag cutouts. In the second case, the plate also has two zigzag cutouts, but their linear and transverse locations can vary along with the respective tip masses. The two optimal specimens are manufactured and tested experimentally. Results Numerical results were compared to experimental results which demonstrate that the proposed approach is reliable and can be used to tune the band gap of plates, thereby maximizing the vibration attenuation in the target frequency range. Conclusion Genetic algorithms can be used along with finite element analysis and zigzag cutouts to tune the band gap of plates subjected to base-excitations. The approach can be extended to plates/structures with other types of excitations and boundary conditions.Other Information Published in: Journal of Vibration Engineering & Technologies
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s42417-022-00614-9
title: The Forensic Identification of CCTV Images of Unfamiliar Faces
Creators: name: Davis, Jeremy Paul
Publisher: name: Goldsmiths, University of London
Year: 2007

description: Government and private crime prevention initiatives in recent years have resulted in the increasingly widespread establishment of Closed Circuit Television (CCTV) systems. This thesis discusses the history, development, social impact and the efficacy of video surveillance with particular emphasis placed on the admissibility in court of CCTV evidence for identification purposes. Indeed, a verdict may depend on the judgement by members of a jury that the defendant is depicted in video footage. A series of 8 experiments, mainly employing a single-item identity-verification simultaneous matching design were conducted to evaluate human ability in this context, using both photographs and actors present in person as targets. Across all experiments, some trials were target absent in which a physically matched distracter replaced the target. Specific features were varied such as video quality, the age of participants, the use of disguise and the period of time between image acquisition and identification session. Across all experiments performance was found to be error prone, even if the quality of the images was high and depicted targets in close-up. Further experiments examined jury decision making when presented with CCTV evidence and also whether extensive examination of images would aid identification performance. In addition, evidence may be presented in court by facial structure experts in order to verify the identity of an offender caught on CCTV. Some of these methods were discussed and a software package was designed to aid in the identification of facial landmarks in photographs and to provide a database of the physical and angular distance between them for this purpose. A series of analyses were conducted and on the majority of these, the system was found to be more reliable than humans at facial discrimination. All the results are discussed in a forensic context and the implications for current legal practices are considered.
The Epidemiology of Cystic Fibrosis in Arab Countries: A Systematic Review
Creators: name: Hammoudeh, Samer
name: Gadelhaq, Wessam
name: Hani, Yahya
name: Omar, Nadia
name: El Dimassi, Darine
name: Elizabeth, Cynthia
name: Pullattayil, Abdul Kareem
name: Chandra, Prem
name: Janahi, Ibrahim A.
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Clinical sciences

description: Cystic fibrosis (CF) is a genetic autosomal recessive disease that involves multiple systems. Both life quality and expectation are affected by the debilitating multi-system involvement of the disease which includes pulmonary, gastrointestinal, reproductive, and endocrine symptoms. Very few studies have covered the epidemiological aspects of the disease among Arab countries. To systematically review the available epidemiological literature on cystic fibrosis in order to describe the epidemiological state of this disease in the Arab world, this review used PubMed to search for relevant articles related to patients with cystic fibrosis, with no restriction on gender or age. Google scholar and the snowballing technique were used to locate further articles. A total of 17 articles met the inclusion criteria for this review. These articles were from Bahrain, Egypt, Jordan, Kuwait, Morocco, Oman, Saudi Arabia, Tunisia, and the United Arab Emirates. The articles scored 1.5–6.5 out of 8 on the quality assessment. The epidemiological data reported varied based on country and type of study. The establishment of CF registries is definitely a priority in the region, as well as the need for more research involving CF patients particularly those involving the epidemiological and clinical characteristics of these patients.Other Information Published in: SN Comprehensive Clinical Medicine
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s42399-021-00756-z
Right Atrial Thrombus in Transient in a COVID-19 Patient: Clinical Echocardiographic Features—Case Report and Literature Review
Creators: name: Abool Maaly, Cheikh A.
name: Al Suwaidi, Jassim
name: Khatib, Mohamad Yahya
name: Alzaeem, Hakam
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Clinical sciences

description: A 54-year-old male is admitted with COVID-19 pneumonia and received prophylactic anticoagulation. On day 8, the patient rapidly deteriorated requiring urgent endotracheal intubation. Transthoracic echocardiography revealed large right atrial thrombus in transient, resulting in pulmonary embolism and severe RV failure; fibrinolytic therapy was not effective and the patient passed away.Other Information Published in: SN Comprehensive Clinical Medicine
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s42399-020-00568-7
Die Einführung der Frauenordination in den Gliedkirchen der Evangelischen Kirche in Deutschland und in den lutherischen Kirchen Skandinaviens
Creators: name: Martens, Gottfried
Publisher: name: Lutherische Beiträge
Year: 1970

description: Lutherische Beiträge, Bd. 16 Nr. 4 (2011): Lutherische Beiträge, Band 16, Heft 4
Introducing the Super PV Project - Cost Reduction and Enhanced Performance of PV Systems
Creators: name: Ulbikas, J.
name: Ulbikaite, V.
name: Denafas, J.
name: Witteck, R.
name: Köntges, M.
name: Topic, M.
name: Frontini, F.
name: Bonomo, P.
name: Macé, P.
name: Bolt, P.J.
name: Ulyashin, A.G.
name: Haarberg, T.
name: Palitzsch, W.
name: Terheiden, B.
name: Weiss, I.
Publisher: name: WIP
Year: 2018
Subjects: PV Economics, Markets and Policies
PV Economics and Markets

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 2164-2168
description: Today photovoltaics (PV) has become one of the most cost-effective forms of electricity production globally and in some regions is already the most competitive unsubsidised form of electricity. Despite positive cost and growing developments, European PV manufacturers are facing a decline in production due to competition from third countries. This decrease in the competitiveness of European PV actors is due to several factors, including a greater fragmentation of the value chain compared to competing actors. Chinese manufacturers have in particular been able to achieve synergies, economies of scale and information sharing throughout the value chain.  SUPER PV is a collaborative European-funded project initiated in 2018 by 26 partners in reaction to this trend. Together, they target a significant LCOE reduction (26%-37%) for European-made PV by adopting a hybrid approach combining technological innovations and data management methods.
Cooperatively-Owned Batteries as a Concept to Prevent Local Grid Congestion
Creators: name: Leghissa, G.
name: Van Den Donker, M.N.
name: Tzikas, C.
name: Verbong, G.P.J.
name: Folkerts, W.
Publisher: name: WIP
Year: 2018
Subjects: PV Economics, Markets and Policies
PV Economics and Markets

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 2153-2157
description: There is a growing interest in community-owned large-scale solar projects. However, if large amounts
of electricity generated by these PV installations are not directly consumed by the local loads, grid congestion can
arise, due to constrains in the local electricity network. This paper explores when does grid congestion start to occur
and whether battery storage systems can be an economically feasible solution to mitigate this problem, as an
alternative to grid reinforcement measures. In addition, a proper sizing of the battery storage with respect to solar
park nominal capacities is assessed, based on simulations and benchmark study of current practices.
Impacts of Socio-Economic Policies on Temporal Diffusion of PV-Based Communal Grids in a Rural Developing Community
Creators: name: Nixon Opiyo, N.
Publisher: name: WIP
Year: 2018
Subjects: PV Economics, Markets and Policies
PV-Related Policies, Strategies and Societal Issues

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 2182-2187
description: An Agent-Based Model (ABM) is developed in Netlogo as a tool for evaluating impacts of subsidies on temporal diffusion of PV microgeneration systems in a rural developing community. ABMs model individual micro entities within a complex system and the rules that govern the interactions between them within the system, to capture the macro-effects of such interactions. The model simulates how introduction of subsidies would influence households’ electrification choices within a given rural developing community over a given period, given various electrification options. Survey-gathered data from Kendu Bay area of rural Western Kenya is used to inform the model. Results show that introduction of capital-based and energy-based subsidies would lead to significant increases in PV installations, which in turn translate into more formations of communal grids (minigrids and microgrids). Observations made from this study can be applied to many similar locations in sub-Saharan Africa. But most importantly, the model could be used by policy-makers in formulating rural electrification policies.
Magnetotransport and de Haas-van Alphen measurements in the type-II Weyl semimetal TaIrTe$_4$
Creators: name: Khim, Seunghyun
name: Koepernik, Klaus
name: Efremov, Dmitry V.
name: Klotz, J.
name: Förster, T.
name: Wosnitza, J.
name: Sturza, Mihai I.
name: Wurmehl, Sabine
name: Hess, Christian
name: Brink, Jeroen van den
name: Büchner, Bernd
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The layered ternary compound TaIrTe$_4$ has been predicted to be a type-II Weyl semimetal with only four Weyl points just above the Fermi energy. Performing magnetotransport measurements on this material we find that the resistivity does not saturate for fields up to 70 T and follows a $ ρ\sim B^{1.5}$ dependence. Angular-dependent de Haas-van Alphen (dHvA) measurements reveal four distinct frequencies. Analyzing these magnetic quantum oscillations by use of density functional theory (DFT) calculations we establish that in TaIrTe$_4$ the Weyl points are located merely $\sim$ 40-50 meV above the chemical potential, suggesting that the chemical potential can be tuned into the four Weyl nodes by moderate chemistry or external pressure, maximizing their chiral effects on electronic and magnetotransport properties.
Rheumatoid Arthritis, Depression, and the Role of Celecoxib
Creators: name: Al-Baz, Nadeen
name: Karim, Mustafa Abdul
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Clinical sciences

description: Rheumatoid arthritis (RA) is a chronic autoimmune disease, causing joint destruction and associated physical, mental, and financial distress. Depression is not uncommonly found in patients with RA as both disorders share sociodemographic, functional, and biologic factors. There is growing evidence on the role of anti-inflammatory agents in managing depression, particularly celecoxib, which has been shown to significantly alleviate depressive symptoms as an augmenting agent. Compared with traditional nonsteroidal anti-inflammatory drugs (tNSAIDs), however, celecoxib offers modest improvement in clinical symptoms, with uncertain results for pain management, physical function, and adverse effects in patients with RA. Further research is needed to assess the effectiveness of celecoxib in the management of RA, particularly in patients suffering from comorbid depression.Other Information Published in: SN Comprehensive Clinical Medicine
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s42399-020-00468-w
Calculating the Cost of Distribution Grid Upgrades Required to Accommodate Current and Future Levels of PV Deployment across Rurality Contexts in the UK
Creators: name: Few, S.
name: Djapic, P.
name: Strbac, G.
name: Nelson, J.
name: Candelise, C.
Publisher: name: WIP
Year: 2018
Subjects: PV Economics, Markets and Policies
PV Economics and Markets

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 2172-2177
description: In this study, we use a geographical information systems (GIS)-framework—the United Kingdom
Photovoltaics Database (UKPVD) to analyze spatial PV deployment, domestic and nondomestic electricity demand,
rurality (as a proxy of building and population density), at a resolution of around 600 households. We use this
framework to identify four representative rurality contexts which account for ~95% of UK households. Using a
Statistical Distribution Network Design and Investment model and making use of network asset data for the
Southwest of England as a representative case, we calculate additional network upgrade costs due to load growth and
increased PV penetration in representative networks in each of these contexts. We calculate additional costs for a
range of PV deployment scenarios and sets of flexibility measures, including storage and demand side management.
Trends in network upgrade costs and savings associated with storage and demand side management are broadly
similar across rurality contexts, although there are quantitative differences. Up to 2030, network upgrade costs are
chiefly associated with avoided investment in low voltage network infrastructure to mitigate voltage impacts of PV.
Post-2030, as peak demand rises, upgrades to high voltage networks to accommodate higher power flow begin to
dominate. The majority of unavoided network upgrade costs after flexibility measures are installed from the period
from 2030 are associated with voltage regulation on the low voltage network to accommodate PV deployment, which
modelled levels of storage and demand side management are unable to mitigate.
Some fundamentals of adhesion in synthetic adhesives
Creators: name: Gay, Cyprien
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Various adhesion mechanisms that have been understood in the field of synthetic adhesives are described and these are linked with situations relevant to fouling issues. The review mainly deals with mechanical aspects of adhesion phenomena, with an emphasis on the role of the elasticity of the bodies, called substrata, attached by adhesive. The consequences of thin film geometry of the adhesive material are described, such as various heterogeneous deformations upon traction. The importance of the bonding process is discussed, as well as some examples of non-wetting surfaces. As seen from a distance, the adhesive layer is merely one interface; Some basic ideas of fracture mechanics are provided and in particular, the behavior of layered systems is discussed. Rolling sticky objects and peeled (flexible) adhesive tapes display similar mechanisms and it is shown how they differ from the normal separation of rigid bodies. Some issues directly related to fouling issues are also discussed, such as forces and torques acting on shells, the advantages of gregarious settlement behavior and concepts for fouling release and antifouling.
description: 11th International Congress on Corrosion and Fouling, Jul 2002, San Diego, United States. Biofouling, 19 (suppl.), pp.53-57, 2003
Werner Klän / Gilberto da Silva, Quellen zur Geschichte selbständiger ev.-luth. Kirchen in Deutschland
Creators: name: Junker, Johannes
Publisher: name: Lutherische Beiträge
Year: 1970

description: Lutherische Beiträge, Bd. 16 Nr. 3 (2011): Lutherische Beiträge, Band 16, Heft 3
Grid Connected PV Systems in Spain: An Economic Assessment with Sensitivity Analysis
Creators: name: Peña, R.
name: Diez-Pascual, A.M.
name: Garcia Díaz, P.
name: Luceño Sánchez, J.A.
name: Caño Fernández, P.
Publisher: name: WIP
Year: 2018
Subjects: PV Economics, Markets and Policies
PV Economics and Markets

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 2169-2171
description: This work analyzes the current situation in the Spanish photovoltaic market in terms of profitability of
investments for different system configurations: small plants (< 10 kW, typical in residential installations), large
plants (some MW) and other systems (commercial, industrial, etc). In all the cases, the calculations assume the PV
plants are grid-connected under free market conditions, with no incentives.
Parameters such as return on investment and payback period have been calculated with the data collected from
several sources.
A software tool has been used in order to calculate the aforementioned figures. It can carry out sensitivity analysis,
making it possible to study the influence of
Status of Building Integrated Photovoltaics (BIPV) in Latin America and the Case of Suriname
Creators: name: Raghoebarsing, A.
name: Reinders, A.H.M.E.
Publisher: name: WIP
Year: 2018
Subjects: PV Economics, Markets and Policies
PV Economics and Markets

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 2161-2163
description: In the recent years Building Integrated Photovoltaics (BIPV) has gained a lot of attention, but little information is available about BIPV in Latin America and Suriname, therefore this paper aims at presenting a status overview of Building Integrated Photovoltaics (BIPV) in the Latin America and Suriname. The application of BIPV happens currently only on small scale in some countries of Latin America, namely in Brazil, Columbia and Chile. BIPV has still not been applied in the built environment in Suriname while the application of rooftop Building Added PV (BAPV) is growing currently. However given the fact that the high initial installation cost of rooftop BAPV is still a financial barrier at this moment for the citizens in Suriname BIPV will not emerge at present but hopefully in the future.
Decoherence spectroscopy with individual two-level tunneling defects
Creators: name: Lisenfeld, Jürgen
name: Bilmes, Alexander
name: Matityahu, Shlomi
name: Zanker, Sebastian
name: Marthaler, Michael
name: Schechter, Moshe
name: Schön, Gerd
name: Shnirman, Alexander
name: Weiss, Georg
name: Ustinov, Alexey V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recent progress with microfabricated quantum devices has revealed that an ubiquitous source of noise originates in tunneling material defects that give rise to a sparse bath of parasitic two-level systems (TLSs). For superconducting qubits, TLSs residing on electrode surfaces and in tunnel junctions account for a major part of decoherence and thus pose a serious roadblock to the realization of solid-state quantum processors. Here, we utilize a superconducting qubit to explore the quantum state evolution of coherently operated TLSs in order to shed new light on their individual properties and environmental interactions. We identify a frequency-dependence of TLS energy relaxation rates that can be explained by a coupling to phononic modes rather than by anticipated mutual TLS interactions. Most investigated TLSs are found to be free of pure dephasing at their energy degeneracy points, around which their Ramsey and spin-echo dephasing rates scale linearly and quadratically with asymmetry energy, respectively. We provide an explanation based on the standard tunneling model, and identify interaction with incoherent low-frequency (thermal) TLSs as the major mechanism of the pure dephasing in coherent high-frequency TLS.
description: 6 pages, 3 figures, supplementary material available
Nonrigidity for circle homeomorphisms with several break points
Creators: name: Adouani, Abdelhamid
name: Marzougui, Habib
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Let $f$ and $g$ be two class $P$-homeomorphisms of the circle $S^{1}$ with break points singularities. Assume that the derivatives $\textrm{Df}$ and $\textrm{Dg}$ are absolutely continuous on every continuity interval of $\textrm{Df}$ and $\textrm{Dg}$ respectively. Denote by $C(f)$ the set of break points of $f$. For $c\in S^{1}$, denote by $π_{s, O_{f}(c)}(f)$ the product of $f-$ jumps in break points lying to the $f-$ orbit of $c$ and by $\textrm{SO}(f) = \{O_{f}(c):~c \in C(f)~\textrm{and}~π_{s, O_{f}(c)}(f)\neq 1\}$, called the set of singular $f$-orbits. The maps $f$ and $g$ are called break-equivalent if there exists a topological conjugating $h$ such that $h(\textrm{SO}(f))=\textrm{SO}(g)~~ \textrm{and} ~~ π_{s, O_{g}(h(c))}(g) = π_{s, O_{f}(c)}(f) ~~ \textrm{for all}~~ c\in \textrm{SO}(f)$. Assume that $f$ and $g$ have the same irrational rotation number of bounded type. We prove that if $f$ and $g$ are not break-equivalent, then any topological conjugating $h$ between $f$ and $g$ is a singular function i.e. it is a continuous on $S^{1}$, but $\textrm{Dh}(x)=0$ a.e. with respect to the Lebesgue measure. As a consequence if for some point $d\in \textrm{SO}(f)$, $π_{s, O_{g}(d)}(g)\notin \{π_{s, O_{f}(c)}(f): c\in C(f)\}$, then the homeomorphism conjugation $h$ is a singular function. This later result generalizes previous results for one and two break points obtained by Dzhalilov-Akin-Temir and Akhadkulov-Dzhalilov-Noorani. Moreover, if $f$ and $g$ do not have the same number of singular orbits then the homeomorphism conjugating $f$ to $g$ is a singular function.
description: 32 pages
Implementation of Business Models for Renewable Energy Aggregators: Experience from the European Project BestRES
Creators: name: Caneva, S.
name: Alonso, P.
name: Challet, S.
name: Weiss, I.
Publisher: name: WIP
Year: 2018
Subjects: PV Economics, Markets and Policies
PV Economics and Markets

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 2149-2152
description: The electricity market landscape is changing because the growth in renewable energy is increasing the share of intermittent
electricity and price volatility in the power system. In this framework, the market integration of intermittent electricity from
renewable energy sources cannot be achieved by single individual, commercial or domestic consumers since they would
only have a limited impact. It is only through a coordinated steering of vast amounts and types of consumers and producers
that the use of distributed generation, demand side management and energy storage can be effective. This coordination
action can be performed by facilitators such as renewable energy aggregators, which can accelerate the integration of
intermittent electricity sources, enhance demand flexibility and decrease the reliance on renewable energy support schemes.
Diversifying Land-Use Options for the Future Large Scale European PV Deployment
Creators: name: Huld, T.
name: Taylor, N.
name: Jäger-Waldau, A.
name: Szabó, S.
name: Bódis, K.
Publisher: name: WIP
Year: 2018
Subjects: PV Economics, Markets and Policies
PV-Related Policies, Strategies and Societal Issues

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 2138-2142
description: Decarbonising the EU energy system will require that renewables provide most, if not all, of electric
power, with photovoltaics (PV) contributing a substantial share. At terawatt-scale deployment levels, the surface area
used for PV installations will be large in absolute terms, but not necessarily a large percentage of available area. The
study uses a unique combination of energy system scenarios, PV energy yield modelling and high resolution land-use
data to analyse the impact for the European Union member states. The results show that future PV land requirements
are a small percentage of overall area in most countries, even under deep-decarbonisation scenarios. Rooftops can
contribute to some extent, but a small percentage of land currently classified as agricultural is likely to be needed.
Use of set-aside land and degraded lands as well as dual-use approaches can mitigate the impact.
Development of Innovative Self-Consumption and Aggregation Concepts for PV Prosumers to Improve Grid Load and Increase Market Value of PV: The PV-Prosumers4Grid Project
Creators: name: Aguilar, L.A.
name: Roos, M.
name: Battaglia, M.
name: Krehan, D.
name: Grundner, C.
name: Jimeno, M.
name: Hendricks, D.
name: Fouquet, D.
name: Lettner, G.
name: Battisti, R.
name: Moosdorf, K.
name: Velte, D.
name: Román Medina, E.
name: Joyce, A.
name: Masson, G.
name: Cambiè, C.
name: González, A.
name: Donoso Alonso, J.
name: Winter, C.
name: Diewald, N.
name: Winter, U.
name: Schram, W.
name: Van Sark, W.G.J.H.M.
Publisher: name: WIP
Year: 2018
Subjects: PV Economics, Markets and Policies
PV Economics and Markets

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 2122-2125
description: In the changing electricity markets in Europe emphasis is put by the European Commission on enlarging the
role of prosumers, i.e. consumers that also generate electricity using photovoltaics (PV). The aim of the recently started
PV-Prosumers4Grid project is to develop and implement innovative self-consumption and aggregation concepts and
business models for PV prosumers that will help integrating sustainable and competitive electricity from PV in the
electricity system. This paper presents the concepts of prosumerism, and identifies three different PV prosumers options
based on system boundaries: group 1, single direct use; group 2, local collective use; group 3, district power model. A
country analysis has been made showing that prosumption in Europe is legally feasible for all countries for single direct
use, while this is not the case for collective use, either local or in a district. Finally, a cash-flow model has been developed
that allows stakeholders in all countries to perform a cost-benefit analysis taking into account energy demand and sources
(heatpump, EV) and PV electricity generation.
Impact of Batteries and Electric Vehicles on the Competitiveness of Solar PV
Creators: name: Vartiainen, E.
name: Masson, G.
name: Breyer, C.
name: Moser, D.
Publisher: name: WIP
Year: 2018
Subjects: PV Economics, Markets and Policies
PV Economics and Markets

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 2126-2133
description: As the share of PV in the energy system increases, electricity storage becomes more important. In addition to stationary storages, electric vehicles (EVs) offer a means for storing solar electricity. With storage, the economically viable sizing of a PV system is considerably larger. Currently, the LCOE for a residential PV + storage system investment is already lower than the value of the generated PV electricity in European countries with high retail electricity prices like Germany and Italy with reasonable interest rates. In countries with low retail electricity prices like Finland, a PV investment without storage starts now to be profitable. The economically optimal sizing of the storage system in relation to the PV system (kWh of storage per kWp of PV) will increase in the future because storage system prices are decreasing faster than PV system prices.
Established and Emerging Solar Markets in 2017: Overview on Global Solar Market Development
Creators: name: Werner, Ch.
name: Gerlach, A.
name: Breyer, Ch.
name: Masson, G.
Publisher: name: WIP
Year: 2018
Subjects: PV Economics, Markets and Policies
PV Economics and Markets

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 2109-2121
description: The installed capacity of photovoltaics (PV) shows a constant growth. The major part of PV is installed in highly developed countries. Further, there is an increasing number of emerging markets that show high growth rates of cumulative and annual PV installations. However, reliable installation rates for PV are available only for a limited number of countries. Not only in emerging markets, even for some developed countries exact numbers of cumulative PV installation are rarely available. For the end of 2017 IRENA reports 384.6 GWp of globally installed PV capacity, giving clear national specific data for 156 countries. IEA PVPS provides a number of 402.50 GWp installed by providing detailed data for 24 countries.
This paper gives an overview of installed PV capacities for all countries in the world based on the examination of publicly accessible data. Furthermore, an analysis of the development of cumulative PV installations in recent years is given. Resulting from this evaluation, PV installations are localised in 196 countries, representing 402.15 GWp.