cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Amyloid Fibril Solubility
Creators: name: Rizzi, L. G.
name: Auer, S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: It is well established that amyloid fibril solubility is protein specific, but how solubility depends on the interactions between the fibril building blocks is not clear. Here we use a simple protein model and perform Monte Carlo simulations to directly measure the solubility of amyloid fibrils as a function of the interaction between the fibril building blocks. Our simulations confirms that the fibril solubility depends on the fibril thickness and that the relationship between the interactions and the solubility can be described by a simple analytical formula. The results presented in this study reveal general rules how side-chain side-chain interactions, backbone hydrogen bonding and temperature affect amyloid fibril solubility, which might prove a powerful tool to design protein fibrils with desired solubility and aggregation properties in general.
description: 7 pages, 6 figures
Generic Energy Matching Model and Figure of Matching Algorithm for Combined Renewable Energy Systems
Creators: name: Kan, S.Y.
name: Brezet, J.C.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
Off-grid Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3585-3590
description: In this paper the original Energy Matching Model and Figure of Matching Algorithm dedicated to photovoltaic (PV) systems [1] are extended towards a Model and Algorithm suitable for systems based on combinations of two or more renewable energy sources. The systems under investigation will range from mobile portable devices up to the large renewable energy system conceivably to be applied at the Afsluitdijk in the north of the Netherlands.
The energy chain of power supplies based on combined renewable energy sources can be modeled by using one generic Energy Matching Model as starting point.
Platonic Tripartition and the Peoples of Middle-Earth
Creators: name: Kambo, Kevin
Publisher: name: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date
Year: 2022

description: Tolkien’s The Hobbit and The Lord of the Rings employ traditional races from fairy tales: elves, men and dwarves. These peoples are differentiated principally by their dominant desires, but also by their speech, diet, and realms. I argue that these three races are significantly inspired by the three aspects that characterize the Republic’s tripartite soul—logistikon, thumoeides, and epithumetikon—along with their respective principal desires: desire for truth, greatness, and material goods. For Tolkien, therefore, these races have a corporate or political psychology that explains who they are as peoples in the history of Middle-earth. I offer a comprehensive view of the major races, connecting the dwarves with the appetitive artisans of the Republic, humans with the honour- and glory-seeking auxiliaries, and elves with the ruling guardians. This treatment explains the artisanal dwarves, as well as the battle-loving men (and women) of Rohan and Gondor, and the nostalgic, ‘anamnetic’ condition of exile that distinguishes the elves. Indeed, the condition of elves in many descriptions recalls a Platonic philosopher returned to the Cave, as well as the Neo-Platonic sagacity pictured in the biographies of Plotinus and Proclus.
description: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date, Vol. 15 (2022): There and Back Again: Tolkien and the Greco-Roman World (eds. Alicia Matz and Maciej Paprocki)
Magnetic reconnection between a solar filament and nearby coronal loops
Creators: name: Li, Leping
name: Zhang, Jun
name: Peter, Hardi
name: Priest, Eric
name: Chen, Huadong
name: Guo, Lijia
name: Chen, Feng
name: Mackay, Duncan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Magnetic reconnection, the rearrangement of magnetic field topology, is a fundamental physical process in magnetized plasma systems all over the universe1,2. Its process is difficult to be directly observed. Coronal structures, such as coronal loops and filament spines, often sketch the magnetic field geometry and its changes in the solar corona3. Here we show a highly suggestive observation of magnetic reconnection between an erupting solar filament and its nearby coronal loops, resulting in changes in connection of the filament. X-type structures form when the erupting filament encounters the loops. The filament becomes straight, and bright current sheets form at the interfaces with the loops. Many plasmoids appear in these current sheets and propagate bi-directionally. The filament disconnects from the current sheets, which gradually disperse and disappear, reconnects to the loops, and becomes redirected to the loop footpoints. This evolution of the filament and the loops suggests successive magnetic reconnection predicted by theories1 but rarely detected with such clarity in observations. Our results on the formation, evolution, and disappearance of current sheets, confirm three-dimensional magnetic reconnection theory and have implications for the evolution of dissipation regions and the release of magnetic energy for reconnection in many magnetized plasma systems.
Performance of Sphelar® Module at Outdoor Conditions in Higher Latitude Areas
Creators: name: Rodziewicz, T.
name: Nakata, J.
name: Taira, K.
name: Inagawa, I.
name: Waclawek, M.
name: Zaremba, A.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
New Types of Cells and Modules

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 596-599
description: Kyosemi Corporation provided new surface structuring technology and produced the Sphelar® modules to capture sunlight 3 dimensionally. The aim of this research is the comparison of long-term performance of the Sphelar® module with other modules working on the Opole University roof in different weather conditions. The investigations started in July 2007. For comparison commercially available flat PV modules were taken, namely single-crystalline and multicrystalline Si modules as well as thin-film CIS and two amorphous Si modules - single and triple junction. All of them were placed on the same plane. It is evident, that the Sphelar® module is the best while working particularly with diffuse solar radiation and at low angles of incident radiation. So it is competitive
with tracking modules. Such performance makes it ideal for BIPV. One could recommend it also to work in frequently shaded areas.
Interviews with students regarding the use of knowledge in the product development process
Creators: name: Kremer, Gerald
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 000 Informatik, Informationswissenschaft, allgemeine Werke::000 Informatik, Wissen, Systeme::001 Wissen
subject: 000 Informatik, Informationswissenschaft, allgemeine Werke::000 Informatik, Wissen, Systeme::000 Informatik, Informationswissenschaft, allgemeine Werke
subject: 600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaften::620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: Design Heuristics
subject: Product Development
subject: KBES
subject: Interview Analysis
subject: Knowledge Engineering
subject: Design Heuristik
subject: Produktentwicklung

description: As part of the DFG project "Design Heuristics for Targeted Product Development", a web app was developed with the help of which design heuristics were to be recorded and used. To test the usefulness of the app, students were surveyed at the beginning and end of the semester regarding their level of knowledge in the field of sustainable product development and the use of the web app. In the course of 14 semi-structured interviews, students were asked at the end of the project what types of knowledge were of particular importance to them and how they were able to identify knowledge that was relevant to them. In addition, students were asked how they could recognize that they could generate new knowledge themselves and at what points they felt ready to share new knowledge with others.
Reversible Degradation of Conjugated Polymer / Fullerene Solar Cells
Creators: name: Gevorgyan, S.
name: Katz, E.
name: Krebs, F.C.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
New Types of Cells and Modules

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 578-580
description: Recent studies of out-door operation of encapsulated conjugated polymer/fullerene bulk heterojunction and bi-layered solar cells with improved long-term stability revealed effect of recovery of PV parameters when the cells were kept in the dark overnight. The first short circuit current Isc and open circuit voltage Voc measurements every morning yielded the highest values compared to those during the rest of a day. It was suggested that in addition to the nonreversible photochemical degradation of the plastic cell some reversible mechanisms could be in play. Here we report experimental evidence of the reversible degradation and the restoration effect for non-encapsulated in-door characterized solar cells based on P3HT/PCBM and native polythiophene/PCBM bulk heterojunctions. We suggest that the underlying mechanism of the observed reversible degradation of Voc can involve the effect of temperature, while recovery of Isc is a result of persistent internal photopolarization in the cell photoactive layer.
title: Musikbox: Oyabá, live im Tübinger Jazzclub, Teil 1
Creators: name: Reimers, Jelena
Publisher: name: Universitaet Tuebingen
Year: 2025
Subjects: subject: Modern Jazz

description: spannenden Genre Jazz Manouche, oder auch Gipsy Jazz widmet. Wir haben das Konzert exklusiv für den Tübinger CampusFunk am 1. Juni 2024 im Tübinger Jazzclub im Club Voltaire aufgenommen. Oyaba besteht aus Sonja Barth an der Geige, Diego Ojeda an der Gitarre, so wie Luca Drexel ebenfalls an der Gitarre. Diese besondere Aufstellung von zwei Gitarren und einer Geige ist charakteristisch für Jazz Manouche. Der Musikstil hat seinen Ursprung bei den Sinti und Roma und den französischen Manouche. Dadurch ergeben sich viele Namen, etwa “Sinti-Jazz” , “Gipsy-Swing” oder eben Gipsy-Jazz. Dieses Genre haben vor allem Django Reinhardt (1910-1953) und Stéphane Grapelli (1908-1997) geprägt. Das Genre zeichnet sich durch seine leidenschaftlichen, lebendigen und manchmal auch nostalgischen Klänge aus. Den zweiten Teil der Aufzeichnung bringen wir zu einem späteren Zeitpunkt.
Analysis of Cohesive Microsized Particle Packing Structure Using History-Dependent Contact Models
Creators: name: Tayeb, Raihan
name: Dou, Xin
name: Mao, Yijin
name: Zhang, Yuwen
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Granular packing structures of cohesive micro-sized particles with different sizes and size distributions, including mono-sized, uniform and Gaussian distribution, are investigated by using two different history dependent contact models with Discrete Element Method (DEM). The simulation is carried out in the framework of LIGGGHTS which is a DEM simulation package extended based on branch of granular package of widely used open-source code LAMMPS. Contact force caused by translation and rotation, frictional and damping forces due to collision with other particles or container boundaries, cohesive force, van der Waals force, and gravity are considered. The radial distribution functions (RDFs), force distributions, porosities, and coordination numbers under cohesive and non-cohesive conditions are reported. The results indicate that particle size and size distributions have great influences on the packing density for particle packing under cohesive effect: particles with Gaussian distribution have the lowest packing density, followed by the particles with uniform distribution; the particles with mono-sized distribution have the highest packing density. It is also found that cohesive effect to the system does not significantly affect the coordination number that mainly depends on the particle size and size distribution. Although the magnitude of net force distribution is different, the results for porosity, coordination number and mean value of magnitude of net force do not vary significantly between the two contact models.
The (extra) ordinary experiences and practices of rural family therapists
Creators: name: Woodhouse, Annette Marie
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: This study aims to increase understanding and knowledge of Australian rural family therapists’ experiences of practice. Nationally and internationally there is limited research about family therapists who work in rural regions. Professional and academic knowledge primarily focuses on the deficiencies of rurality for therapists, such as feeling professionally isolated and having limited access to education and supervision. Despite these challenges, rural family therapists continue in their practices, sustaining themselves and those families and communities with which they work. Fourteen Australian rural family therapists collaborated in developing a research process to explore their experiences and practices of family therapy, with a particular focus on how they sustain themselves professionally. Influenced by social constructionist and feminist theories this qualitative study utilised a participatory action research strategy to co-construct stories with participants. Therapists from the New South Wales-Victorian border, Victorian and Tasmanian regions chose an ongoing focus group, a single small group interview or an individual interview. Participants’ individual stories were analysed as narratives to create the following overall themes which were linked to community connectedness: • Understandings of rurality and rural family therapy practices. • Experiences of transformation and change. • Witnessing rural resistance and resiliency. • Working with multiple relationships in rural communities. • Traversing across issues of cultural, racial and gender differences. Gritty narratives of participants’ persistence, and everyday resistances to dominant understandings of rurality emerged. Alternative and dominant understandings of rurality come to sit alongside each other, offering rural practitioners differing perspectives to guide their practices. Participants unearthed an understanding of rurality as deeply relational, a community connectedness which sustains them professionally within small rural communities. Overall this study found that rural family therapists’ experiences and practices were complex, diverse and specific to the localised contexts within which they lived and worked.
Early predictors of outcome in spine trauma patients
Creators: name: Tee, Jin Wee
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: Spine trauma is a complex field with significant global variation in practice. The acute management of spine trauma is assisted partly by spine trauma treatment algorithms. The majority of existing algorithms classifies and recommends treatment for spine injuries but do not take into account the overall clinical state of the patient. This thesis focuses on the identification of these factors through the delineation of early risk factors predictive of spine trauma mortality, poor functional outcome and suboptimal health status. The methodology of this thesis is the development and pilot of a spine trauma registry minimum dataset utilizing a multidisciplinary modified Delphi approach. The minimum dataset was utilized to gather information with regards to demographics, clinical status factors, polytrauma severity, spine injury characteristics and both patient- and physician reported outcomes. The thesis shows that spine trauma patients are not dissimilar to general trauma patients in terms of mortality predictors. Irreversible predictors of poor outcome identified were the elderly, multiple comorbidities, severe polytrauma, moderate and severe traumatic brain injury and thoracic spine injuries. Reversible predictors of poor outcome identified were the coagulopathy, hypoxia and haemodynamic instability. A clinical status factor may be used as a modifier to all spine trauma treatment algorithms with the purpose of assessing medical stability and suitability for decompressive and reconstructive spine trauma operative procedures. Critically ill trauma patients with spine injuries and irreversible adjusted spine trauma poor outcome predictive variables should have their definitive spine surgery deferred until the they show evidence of survival from their general trauma injuries, in particular, severe traumatic brain injury. Critically ill trauma patients with spine injuries and reversible adjusted spine trauma poor outcome predictive variables should also have their definitive spine surgery deferred until their risk factors have been treated adequately.
4.2 kWp Stand-Alone Photovoltaic System: Life Cycle Assessment Study
Creators: name: García-Valverde, R.
name: Miguel, C.
name: Martínez-Béjar, R.
name: Urbina, A.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
Off-grid Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3562-3565
description: The energetic and environmental Life Cycle Assessment (LCA) of a 4.2kWp Stand-Alone Photovoltaic System (SAPV) at the University of Murcia (south-east of Spain) is presented. Meteorological inputs and electrical outputs were recorded in order to use real generation data.
A complete methodology for LCA applied to SAPV is presented. The methodology involves the material inventory, the life cycle energy use and the life cycle CO2 emissions for the three phases of a service facility: construction, operational and decommissioning phases. Also we have worked out the Embodied Energy Pay Back Time (EPBT) and the equivalent CO2-emission factor for the facility using real generation data for the analysis carried out.
PV modules and batteries are the energetically and environmentally most expensive elements. The energy pay-back time was found to be 9,09 years and the specific CO2 emissions was calculated as 131 g/kWh. Construction processes are the energetically most intensive, while transport and recycling ones present low percentages.
The SAPV system has been compared to other supply options (e.g., diesel generator and Spanish grid) showing lower impacts in both cases. The results show the CO2-emission reduction potential of SAPV systems in southern European countries and point out the critical environmental issues in these systems.
PV Network Integration
Creators: name: Schellekens, E.
name: Weiss, I.
name: Caneva, S.
name: Helm, P.
name: Duvauchelle, C.
name: Soler, R.
name: Fraile Montoro, D.
name: Despotou, E.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
Grid-connected Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3388-3391
description: In the framework of the SUNRISE project a study work on the peak power supply by solar electricity is under evaluation. This paper shows the first results of the study work. The paper focuses on the possible match between the electricity peak power demand and the solar electricity generation by taking into account the technical constraints related to the PV network integration.
Targeted therapies in rare cancers
Creators: name: Kerr, Lauren Tessa
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: Cancer is a deliberating disease that affects 1/3 of the population and kills approximately 40,000 Australians every year. Current treatments for cancer are often severe and incur a number of adverse effects. New treatments with fewer side effects are urgently required, especially for rare cancers because identifying improved treatments has added difficulty due to challenges in recruiting sufficient patients for clinical trials, lack of knowledge of the rare cancer types by surgeons and physicians, reduced funding for research, as well as limited collaborative support. In this thesis we explore the use of targeted therapies and the development of novel tools to identify anti-cancer targets for two rare cancers: myxoid liposarcoma (MLS) and glioma. We examined an array of targeted therapies, some of which had been developed for other cancers, screening therapies against MLS patient-derived cell lines for impact on cell proliferation and survival. We identified a number of agents that were highly efficacious against MLS cell lines in vitro both alone and in combination with other treatments, and as single agents against MLS xenografts in mice. We demonstrated the importance of key cellular pathways in MLS cell lines. In particular, MLS cell lines were highly sensitive to inhibition of the VEGFC/D-VEGFR-3 signalling axis, inferring potential oncogenic addiction to this pathway. Further, we demonstrated that eIF4E and FUS-CHOP are both important proteins for the survival of MLS cell lines, which may be up-regulating the expression of proteins that contribute to oncogenesis. We developed novel tools to examine the role of ErbB4 in glioma and used these tools to examine 44 brain samples (glioma and non-neoplastic samples). Specifically we developed, optimised and analytically validated an RT-qPCR that quantified the levels of ErbB4 splice variants in cancer cell lines and patient tissue. We then used this assay to profile the expression of brain samples. These studies revealed that ErbB4 expression is significantly lower in glioma compared to normal brain, which suggests that ErbB4 may be a tumour suppressor protein in glioma. Splice variant expression was different in glioma samples compared to normal brain, with increased expression of the more oncogenic spice variant in tumour samples, especially in some patients; this suggests ErbB4 may still be contributing to disease progression in a subset of glioma patients. We identified a novel truncated ErbB4 splice variant, JM-e, which is o the extracellular proportion of ErbB4. JM-e expression was detected in cancer cell lines and universally in glioma and matched normal brain samples. There was significantly higher expression of JM-e in some glioma samples compared to matched normal brain. The studies presented in this thesis have further enhanced our knowledge of ErbB4 and its role in glioma, and identified novel targeted therapies that were highly efficacious in the treatment of MLS.
Quis enim laesos impune putaret esse deos?: Ents, Sacred Groves, and the Cost of Desecration
Creators: name: Matz, Alicia
Publisher: name: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date
Year: 2022

description: Seneca the Younger, in his Letters, describes a sacred grove as a “thick grove of ancient trees which rise far above the usual height and block the view of the sky with their umbrella of intertwining branches” (Seneca the Younger, Letters 41.3). Fangorn Forest is clearly a sacred site as defined by Seneca, made even more sacred by the presence of the Ents. Thus, to violate it would be a terrible act of desecration, not unlike Lucan’s narrator’s shock at Caesar’s desecration of the sacred grove at Massilia (Lucan BC 3.447 – 8, quoted in the title of this paper). After exploring the relationship between Ents and sacred groves, the paper will compare the fate of Caesar to that of Saruman, who violated Fangorn Forest. Just as Augoustakis (2006) argues that the violation of the grove foreshadows Caesar’s death, so too Saruman’s death at the hands of Wormtongue becomes a fitting punishment for his violation of Fangorn.
description: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date, Vol. 15 (2022): There and Back Again: Tolkien and the Greco-Roman World (eds. Alicia Matz and Maciej Paprocki)
Performance Analysis of Roof Integrated Photovoltaic Module According to Hybrid Structure Layer
Creators: name: Kim, H.-I.
name: Kang, G.-H.
name: Park, K.-E.
name: Kim, K.-S.
name: Yu, G.J.
name: Suh, S.J.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
PV Applications in the Built Environment

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3538-3541
description: The integration of PV technology into roof of houses is an approach that is being championed in Germany, Japan and United states etc. In the Korea, PV roofing systems already are given the large number of houses which are projected to be built by 2012. Such BIPV system will make it possible to increase energy productivity and to decrease cost of building materials. But most of the absorbed solar energy appears passively as heat, rising the temperature of cells and reducing the efficiency with the active part is converted electricity. Therefore this paper presents the comparison of electrical and architectural performance of roof integrated PV module which can install easily into available area of building such as roof of house, public institution and factory. The difference of the front metal's temperature of the A type PV module and B type PV module have occurred approximately 21 because waffle stud of B type PV module absorbed increased heat of the front metal. But the power of each PV module is measured similarly because material for protection against heat do not radiate heat of increasing inside of PV module well. The difference of electrical power of PV modules according to season is approximately 47.8%.
Determination of Minority Carrier Diffusion Lengths in Silicon Solar Cells from Photoluminescence Images
Creators: name: Giesecke, J.
name: Kasemann, M.
name: Schubert, M.C.
name: Michl, B.
name: The, M.
name: Warta, W.
name: Wuerfel, P.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 453-457
description: Lately a new luminescence based spatially resolved method to measure minority carrier diffusion lengths on Silicon Solar cells was introduced using Electroluminescence (EL) [1]. The idea of this method is to analyze the reabsorption-shaped form of the emitted luminescence spectrum with optical filters, enabling one to determine the depth distribution of excess minority carriers which is directly related to diffusion length. This article is concerned with the extension of this method to Photoluminescence (PL), allowing for a diffusion length mapping in all stages of cell production. Problems associated with this method - such as filter inhomogeneities, fluorescence of filters, texturing, the nature of surface reflection and surface recombination - are addressed. Different PL measurement setups are discussed theoretically and with respect to measurement results. Diffusion length images measured with the technique are demonstrated.
Performance of c-Si Solar Cells After 25 Years of Operation
Creators: name: Messaoudi, A.
name: Bouazzi, A.S.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
Off-grid Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3554-3557
description: A 29 kWp PV power station, with lead-acid battery storage, was installed in Tunisia in 1982[1]. It worked continuously during 20 years to supply a remote village, Hammam Biadha, with electricity (220 V, 50 Hz). It has been disconnected in 2002, when the national grid reached the village. We have been measuring the PV properties of the 840 panel of the station during sunny days of June and July 2007, in goal to study the possibility of recycling the good panels to make a new power station connected to the grid [2]. This communication gives the results of this study. The most important defect was seen in the connecting cables and plugs; their insulation was de-polymerized and falls down in powder, the copper, for some cables, is no longer insulated. We present here the preliminary results of our study
Single-Phase Inverter for Connected PV System With Power Factor Control
Creators: name: Hassaine, L.
name: Olías, E.
name: Quintero, J.
name: Zumel, P.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
Grid-connected Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3546-3549
description: In photovoltaic system connected to the grid, the requirements for inverter connection include: maximum power point, high efficiency, control power injected into the grid, and low total harmonic distortion of the currents injected into the grid. In this paper is presented a control strategy of the power factor and a total harmonic distortion of the currents injected into the grid. This control strategy is based on the phase shift between the inverter output voltage and the grid voltage, and the Digital Sinusoidal Pulse Width Modulation (DSPWM) patterns, in order to control the power factor for a wide range of the inverter output current and to control the power injected into the grid. The functional structure of this
system is presented. A simulation study of this strategy has been realized using Matlab/Simulink and PSIM.
Analysis of a craddle-to-craddle certified product regarding the usage of design heuristics for sustainable product development
Creators: name: Kremer, Gerald
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 000 Informatik, Informationswissenschaft, allgemeine Werke::000 Informatik, Wissen, Systeme::001 Wissen
subject: 600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaften::620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: Design Heuristics
subject: Product Development
subject: KBES
subject: Sustainability
subject: DfX
subject: Design Heuristik
subject: Produktentwicklung
subject: Nachhaltigkeit

description: In the DFG project "Design Heuristics for Goal-Directed Product Development", a product was analyzed to determine which heuristics were used for product development. The goal was to develop a coherent heuristic set that contains heuristics that can be used together. For the analysis, a knowledge graph of over 400 heuristics was formed. The product was then analyzed to determine which of the heuristics were used (heuristics marked in green), which were not used because they were irrelevant to the product case (marked in yellow), and which were not used even though they could have been (marked in red). The product analyzed was the craddle-to-craddle certified soundbar "Beosound Level" from Bang & Olufsen.
A Review of Control Algorithms for Autonomous Quadrotors
Creators: name: Zulu, Andrew
name: John, Samuel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The quadrotor unmanned aerial vehicle is a great platform for control systems research as its nonlinear nature and under-actuated configuration make it ideal to synthesize and analyze control algorithms. After a brief explanation of the system, several algorithms have been analyzed including their advantages and disadvantages: PID, Linear Quadratic Regulator (LQR), Sliding mode, Backstepping, Feedback linearization, Adaptive, Robust, Optimal, L1, H-infinity, Fuzzy logic and Artificial neutral networks. The conclusion of this work is a proposal of hybrid systems to be considered as they combine advantages from more than one control philosophy.
description: 10 pages, 6 figures, 1 table
Solar Energy on Airports: The Impact of Large Scale Photovoltaic Systems on Distribution Networks
Creators: name: Braun, P.
name: Wille-Haussmann, B.
name: Rüther, R.
name: Wittwer, C.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
Grid-connected Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3392-3395
description: Over the last two decades, many photovoltaic (PV) systems have been connected to electricity distribution networks worldwide. Electricity utilities are often required to promote adaptations to their distribution systems in order to accommodate and to operate this kind of generators. This raises the issue of penetration limits for distributed PV generation. Airport buildings are typically large, isolated and free of shading, and they represent a great potential for the application of large scale PV systems. The energy demand patterns characterized by intensive utilization of air-conditioning, airport building energy demands correlates very good with solar generation profiles. For higher penetration ratios of distributed PV generation, to supply the energy levels demanded on airports, there are some concerns about voltage rise. Depending on the network configuration, severe problems might be faced, which would require costly grid structure upgrading. Also, protection schemes might eventually need adaptation to bidirectional power flows. The aim of this paper is to quantify the potential impact in the conventional distribution network where the airports are located. The results of the load flow analysis show that violations of the tolerated voltage rage only occur in worst-case scenario with zero load and maximal PV input.
Roman Heroes at Helm’s Deep?
Creators: name: Oughton, Charles W.
Publisher: name: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date
Year: 2022

description: This article analyzes Tolkien’s narrative of the Battle of Helm’s Deep as a retelling of the Horatius Cocles episode from Livy’s AUC, which contains descriptions of the defenses and the bridge, a rally encouraged by Horatius, his bold stand both with his companions and alone, and the honors paid to him after the battle. Tolkien’s Battle of Helm’s Deep contains the same elements split across two narratives: the defense of the causeway leading to the gates of the Deep by Aragorn, Éomer, and Gimli; and, after the fall of the Deeping wall, Aragorn’s defiant stand alone on the stairway leading to the inner doors of the Hornburg. Aragorn’s double action demonstrates a fulfillment of Livy’s exemplary arc. Tolkien’s knowledge of Macaulay’s “Horatius” provides a possible intermediary that accounts for various additions to the story. However, the larger structure of Tolkien’s narrative as well as the imagery that resonates throughout the text distinctly evoke the vivid descriptions of Livy. While both sets of heroes make brave stands against their enemies, Tolkien’s warriors represent a civilizing force in their efforts to build and restore their defenses while Livy’s Roman heroes destroy the bridge to save their state.
description: thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date, Vol. 15 (2022): There and Back Again: Tolkien and the Greco-Roman World (eds. Alicia Matz and Maciej Paprocki)
Effect of Cavitation in the Synthesis of TiO2 for Dye Sensitized Solar Cells
Creators: name: Fernández-Lorenzo, C.
name: De La Luz, A.
name: Alcántara, R.
name: Navas, J.
name: Anta, J.
name: Guillen, E.
name: Martin, J.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
New Types of Cells and Modules

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 567-569
description: Because the performance of Dye Sensitized Solar Cells depends significantly on the properties of the nanostructured TiO2 films, it is important to control the properties of these films such as their crystal structure and crystallite size. When nanocolloidal titania is formed from the hydrolysis and condensation of titanium alkoxides in water, the agglomeration of colloids is often a problem, especially when small, monodisperse particles are desired. In some cases it is possible to peptize the agglomerated colloid and redisperse it in the form of unagglomerated particles. In this work we report on the growth kinetics of TiO2 nanoparticles synthesized from the hydrolysis and condensation of titanium alkoxides using high water/titanium ratio. The peptization is achieved through the action of nitric acid, aided by sonication. The nano-TiO2 particles were characterized by XRD, Dynamic Light Scattering, TEM and UV-Vis spectroscopy to determine their size, crystallinity level and optic properties.
Tuning parameter selection in high dimensional penalized likelihood
Creators: name: Fan, Yingying
name: Tang, Cheng Yong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Methodology (stat.ME)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: 62J12(Primary) 62J07(Secondary)

description: Determining how to appropriately select the tuning parameter is essential in penalized likelihood methods for high-dimensional data analysis. We examine this problem in the setting of penalized likelihood methods for generalized linear models, where the dimensionality of covariates p is allowed to increase exponentially with the sample size n. We propose to select the tuning parameter by optimizing the generalized information criterion (GIC) with an appropriate model complexity penalty. To ensure that we consistently identify the true model, a range for the model complexity penalty is identified in GIC. We find that this model complexity penalty should diverge at the rate of some power of $\log p$ depending on the tail probability behavior of the response variables. This reveals that using the AIC or BIC to select the tuning parameter may not be adequate for consistently identifying the true model. Based on our theoretical study, we propose a uniform choice of the model complexity penalty and show that the proposed approach consistently identifies the true model among candidate models with asymptotic probability one. We justify the performance of the proposed procedure by numerical simulations and a gene expression data analysis.
description: 38 pages
Comparative Analysis of the Different Photovoltaic Modules Used in PV/T Panels
Creators: name: Mantescu, G.
name: Olariu, N.
name: Marinescu, C.
name: Dumitrache, C.
name: Lakatos, E.
name: Olteanu, L.
name: Badea, M.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
PV Applications in the Built Environment

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3550-3553
description: This paper is inscribed in Hybrid Photovoltaic/Thermal (PV/T) systems area for analyze of the different technological solutions having as result the improving of the electrical performance and hot water producing. In this context, was presented an experimental PV/T panel dedicated for building integration. The heat assumption through a forced circulation of the thermal fluid in close circuit is provided by the system which include PV/T module. It was tested different constructive solutions of the PV/T panels. Also, in this paper is shown the developed procedure and the experimental results. Finally, in the paper was proposed a technological solution of the PV/T panel. The technological solution developed was compared with classical technology for obtaining PV/T panels.
High Performance Transparent Electrodes Consisting of ITO/Ag/ITO Thin Films Deposited by Sputtering at Room Temperature
Creators: name: Guillén, C.
name: Herrero, J.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
New Types of Cells and Modules

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 526-529
description: Multilayer structures based on very thin films of indium tin oxide (ITO) and Ag have been prepared on conventional soda lime glass (SLG) and flexible polyethylene terephthalate (PET) substrates by sputtering at room temperature. The optical and electrical characteristics of different multilayer combinations were analyzed at different preparation stages and onto both (glass and plastic) substrates. The best results have been obtained with ITO/Ag/ITO structures that showed a sheet resistance as low as 6 Ω/sq and maximum transmittance above 90 % in the visible spectral range, by discounting the corresponding substrate. Such multilayer electrodes have analogous characteristics onto SLG and PET, showing also good flexibility onto the plastic substrate and requiring low material consumption owing to the small thickness of the whole electrode (about 70 nm).
Characterization of Titanyl Phthalocyanine Films by the Surface Photovoltage Method
Creators: name: Touskova, J.
name: Tousek, J.
name: Drabik, M.
name: Polonskyi, O.
name: Remes, Z.
name: Hanus, J.
name: Cimrova, V.
name: Slavinska, D.
name: Biederman, H.
name: Zachary, A.M.
name: Choi, Y.
name: Hanley, L.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
New Types of Cells and Modules

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 574-577
description: Titanyl phthalocyanine (TiOPc) thin films were prepared using evaporation and surface polymerization by ion-assisted deposition (SPIAD) which causes dimerization between adjacent TiOPc molecules. All films were characterized by the surface photovoltage method using absorption coefficients evaluated from measurement of the optical transmission and reflection. The surface photovoltage method is applied here to these organic films, allowing determination of exciton diffusion length, which characterizes signal from the bulk. Drift lengths of the charge carriers in the space charge region (SCR) showed recombination, influencing the voltage from this depletion region. Typically, the thickness of the SCR was higher than that of the bulk and the diffusion length of excitons was ~15 nm. No differences in the surface photovoltage spectra or the exciton diffusion lengths were observed between the SPIAD and evaporated TiOPc films more than one year after the samples preparation. An aging process was indicated at the evaporated films.
Scerri - An Innovative PV Waterproofing Membrane on Flat Roof With VHF-Technologies Modules
Creators: name: Nagel, K.
name: Burà, E.
name: Morini, F.
name: Margna, B.
name: Zanetti, I.
name: Chianese, D.
name: Goulpie, P.
name: Rummens, F.
name: Van De Vel, L.
name: Forrer, C.
name: Zumstein, H.
name: Testoni, A.
name: Leonardi, E.
name: Martignoni, M.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
PV Applications in the Built Environment

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3506-3507
description: At the foot of 3 castles, protected by the Unesco world heritage, an innovative photovoltaic waterproofing membrane was installed on a flat roof in Bellinzona in Switzerland. The modules are produced by VHF-technologies (Flexcell)
a Swiss PV producer and they have been laminated into a waterproofing membrane made by Renolit, a Belgian manufacturer. VHF-technologies is one of the few companies able to produce this kind of technology and one of the
first concurrent to Uni-Solar company. The aim of the project is to analyze the behavior and the energy yield of this 1kWp Building integrated PhotoVoltaic (BiPV) system composed with flexible single-junction amorphous silicon modules.
Effective Lifetime Characterisation of a Room Temperature Meta-Stable Defect in N-type 5 Ωcm FZ Phosphorus-Diffused Oxide-Passivated Silicon
Creators: name: Thomson, A.F.
name: McIntosh, K.R.
name: Macdonald, D.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 517-521
description: A meta-stable defect in light-phosphorus diffused, phosphorus-doped 5 ·cm, FZ silicon, has been observed transitioning from a low to a high recombination state at room temperature after a 400 °C anneal saturating in 10,000 s. This defect caused significant increases in bulk recombination, characterised by a reduction in bulk lifetime of 30-70 %. The increase in recombination is completely reversed by a further anneal at 400 °C. When quenched to room temperature the defect again transitions to the same high recombination state. This increasing bulk recombination was not observed when the same substrates were undiffused or boron diffused. It was also not observed when a boron doped 3500 ·cm, FZ substrate was light-phosphorus diffused. One possible cause of this defect is a phosphorus-complex recombination centre, that reacts similarly to iron-boron pairs, and either the phosphorus diffusion has introduced this complex or the presence of the light-phosphorus diffusion makes its transition observable with photoconductance decay.
A New Device to Measure the Circumsolar Ratio
Creators: name: Contento, G.
name: Cancro, C.
name: Graditi, G.
name: Privato, C.
name: Roca, F.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 448-452
description: All concentrator devices, both photovoltaic and thermal, are designed to collect only some predetermined direct portion of the solar radiation; so, the correct measurement of the direct solar radiation incident on a C-system is requested to calculate properly its efficiency. The focus of this paper is to describe a novel, and simple, method to measure the CSR (CircumSolar Ratio) [1-5] and a measurement apparatus, put under Italian patent [6], developed at this aim. It is composed of a lens, a diaphragm on the lens focus, a measurement device (e.g. a photodiode, a thermopile, etc) on axis with the lens, everyone assembled on a stiff mechanical support. The whole
system is installed on a solar tracker so that the perfect alignment between lens and solar radiation is guaranteed. Thanks to optical simulations we have concluded that, when a suitable achromatic lens is used, a good one-to-one
correspondence exists - from practical point of view - between the diaphragm aperture and the maximum angular divergence of the solar radiation collected by the instrument on the detector. So, in principle, increasing the
diaphragm aperture, the solar irradiances corresponding to the growing values of solar radiation angular divergences can be measured. Then, on the basis of the measurements of the solar divergence yearly average value, it is possible to understand when a C-system works at its best for a fixed site in connection to the CSR measured value.
Meson cloud effects in nucleon resonances at low and intermediate energies
Creators: name: Golli, Bojan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review some results obtained by the Coimbra-Ljubljana collaboration that reveal the important role of the pion cloud in the low- and intermediate-energy nucleon and delta resonances.
description: Talk presented at EEF70, Workshop on Unquenched Hadron Spectroscopy, 1-5 Sept. 2014, Coimbra