101,392 research outputs found

    Author, Geraldine Brooks at the National Library of Australia for the 2009 Ray Mathew Lecture, Canberra, 23 October 2009 [picture] /

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    Title from acquisitions documentation.; Part of the collection: Portraits of author, Geraldine Brooks during her visit to the National Library of Australia for the 2009 Ray Mathew Lecture, Canberra, 23 October 2009.; Acquired in digital format; access copy available online.; Mode of access: Internet via World Wide Web.; Photographed by a staff member of the National Library of Australia

    Saint Christopher in medieval Spanish literature

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    The thesis explores the legend of Saint Christopher as presented in four fourteenth- and fifteenth-сеntury manuscripts, the oldest extant Castillan accounts. Chapter One outlines the legend's origins in fourth-century Eastern Mediterranean culture, and its trajectory as far as its appearance in Jacobus de Voragine's Legenda aurea, commenting on the changes made to content and emphasis as the account evolved. The focus narrows in Chapter Two, where the transmission from Latin to Castillan is considered in detail, and comparisons drawn between the four vernacular accounts. Chapter Three and Four deal with thematic aspects of the legend as they appear in Spanish, including an exploration of die nature of Christopher in his dual portrayal as saint and monster, and the notions of fear, power and voice as they are depicted in the texts. The four medieval Spanish accounts are edited and presented here (three of them for the first time) in an appendix, complete with critical apparatus

    Portrait of Robert Dessaix in the National Library of Australia bookshop, Canberra, 10 October 2008, 1 [picture] /

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    Title from acquisitions documentation.; Part of the collection: Portraits of author Robert Dessaix in the National Library of Australia bookshop, Canberra, 10 October 2008.; Acquired in digital format; access copy available online.; Mode of access: Internet via World Wide Web.; Photographed by a staff member of the National Library of Australia

    Portrait of Robert Dessaix in the National Library of Australia bookshop, Canberra, 10 October 2008, 2 [picture] /

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    Title from acquisitions documentation.; Part of the collection: Portraits of author Robert Dessaix in the National Library of Australia bookshop, Canberra, 10 October 2008.; Acquired in digital format; access copy available online.; Mode of access: Internet via World Wide Web.; Photographed by a staff member of the National Library of Australia

    Conversation with Maria Power, University of Liverpool

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    In the Exchanges, we present conversations with scholars and practitioners of community engagement, responses to previously published material, and other reflections on various aspects of community-engaged scholarship meant to provoke further dialogue and discussion. In this issue Christopher Hrynkow talks to Maria C. Power about her community-based research and her vision for engaged scholarship as undertaken by religious historians. Dr. Maria Power, PhD (History, Royal Holloway), is a lecturer in Religion and Peace Building at the Institute of Irish Studies, University of Liverpool. Her research focuses on the relationship of faith to politics, especially in areas of conflict, and the role that religious organisations play in peacebuilding</jats:p

    Battery Storage System as Power Unbalance Redistributor in Distribution Grids Based on Three Legs Four Wire Voltage Source Converter

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    This article discusses the application of battery energy storage systems (BESSs) as power redistributors in three-phase distribution grids as an add-on functionality to typical BESS applications, such as congestion management and energy arbitrage. Combining those ancillary services into a single power unit is not yet performed in practice but may constitute an emerging business opportunity to increase the BESS revenues. The unbalanced operation of the BESS voltage source converter (VSC) leads to the circulation of low-frequency current harmonics in the dc-link through the capacitors and the battery cells. Therefore, it is particularly interesting whether relatively large 50- and 100-Hz currents can safely circulate within these components. Analytical modeling and design guidelines for the dc-link of a three-leg four-wire two-level VSC operating under unbalanced loads are detailed. Furthermore, a low-power VSC prototype is used to demonstrate the working principle of the BESS, providing power unbalance redistribution and symmetric power exchange. Additionally, the ICR18650-26F Lithium-ion cells are cycled to reach end-of-life with different current profiles and C-ratings. The analysis shows that charging with a 100 Hz ripple superimposed to the dc current leads to a 10% increment in degradation

    Effects of power electronic compensation on distribution network thermal and voltage violations

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    This paper is concerned with the use of medium-voltage power electronics in providing active compensation to distribution networks. The primary purpose of using active compensation is to allow for network growth in the form of distributed generation or customer demand increases. With continuing growth, network thermal and voltage constraints would eventually be violated at some point, even with the use of power electronic compensation. Through the study of increasing generation on several hundred distribution network datasets, trends in the type and location of these constraint breaches are identified for both uncompensated and compensated networks. In comparing the initial types of constraint breaches in uncompensated and compensated networks, the use of power electronics is seen to eliminate overvoltage issues as the primary concern in many cases. In addition, while power electronic compensation is seen to make a significant change in the growth accommodated before constraint breach, the location of these initial breaches is not altered appreciably

    ESP Across Cultures

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    This present volume constitutes the third online edition of ESP Across Cultures. The decision to change from a paper-based to an online edition has undoubtedly been beneficial in terms of enjoying greater visibility within the international academic community. One thing that has not changed over the years, however, since the inception of the journal in 2004, has been the policy of double-blind peer reviewing, which means that only a selected number of the papers submitted end up as being published. There are seven papers in the current issue, each one analysing a particular aspect of English for Specific Purposes from a cross-cultural perspective. The first paper, by Hmoud S. Alotaibi, focuses on research article introductions in Arabic, analysing the extent to which scholars writing in Arabic in the sphere of education adhere to the CARS (Create A Research Space) model delineated by John Swales which was elaborated in particular with regard to the academic conventions widely adopted in the English-speaking world. Instead of restricting the investigation to the introductory section as past studies in this field did, the author examines all of the subheadings and he concludes that all introductions include Move 2 in a subheading entitled the Problem of the Study, a result that contradicts previous findings where the paucity of Move 2 was common in non-English RAs, and especially in Arabic ones. Patrizia Anesa analyses the websites of the main arbitration centres operating in Asia from a textual perspective to define how they are discursively constructed and can be used as promotional tools, thereby helping us to evaluate the importance assumed by internationalization processes or by local cultural elements in promoting a particular centre as a seat for international arbitration. She concludes that while some scholars argue that we are witnessing the ‘Asianization’ of arbitration, with the increasing bargaining power of Asian parties, on the other hand a phenomenon of ‘Universal Arbitration’ is also emerging, i.e. a form of convergence of how disputes are resolved so that parties of any nationality can operate in the same way with ever fewer language barriers. In their paper, Mahmood Reza Atai and Fatemeh Asadnia examine the communicative and promotional function of university homepages by looking at the ‘university overview’, ‘university mission statement’, and ‘university introduction at a glance’ genres, using a corpus of 210 texts selected from homepages of the top 500 universities ranked by the Academic Ranking of World Universities. The findings demonstrated that the three genres shared communicative purposes, functional units, certain moves and steps, socio-academic contexts, and discourse community members that led to the formation of a genre set. Gaetano Falco explores ways of using comics in an MA course on translation of economic texts as a means of stimulating the interest of language students with no economics skills in order to introduce economics-related lexis and improve thematic competence in general. He observes that empirical research has shown that films and comics can indeed be useful resources to teach economic translation to students with no skills in economics. However, the author warns that the use of comics for educational purposes may have its drawbacks, e.g. when students deal with complex sign systems which embody complex economic concepts, where often the humorous element is lost. In her paper, Irina Khoutyz describes the differences in how scholars present their findings in research articles (RA) in international journals in English and in Beyza Björkman Christian Burgers Jan Chovanec Anda-Elena Cretiu Erika Dalan John Douthwaite Hanem El-Farahaty Said Faiq Silvia Ferreri Inmaculada Fortanet-Gómez Pedro Fuertes-Olivera Giuliana Garzone Christoph Hafner Ruba Khamam Anna Loiacono Geraldine Ludbrook John McRae Susan Petrilli Silvia Pireddu Tarja Salmi-Tolonen Jeffrey Segrave Charlotte Taylor Margherita Ulrych John Kenneth White Jessica Williams I hope you will enjoy the current issue of this journal and will make the most of the free access to all past issues. Christopher Williams (Chief Editor) 6 FOREWORD local journals in Russian. She then looks into the reasons for these differences, seeking explanations from the sociocultural contexts in which these RAs were written, as well as providing advice to local authors as to how to make their RAs more competitive at the international level. The differences include the apparent lack of structure of Russian RAs with respect to English RAs; the tendency in Russian authors not to specify the purpose in writing a paper; and the tendency of Russian authors to present the methodology used in less detail compared with English RAs. Luisella Leonzini investigates the use of verbal and visual metaphors in economic- media discourse within the context of the euro crisis by studying the correlation between linguistic and pictorial metaphors and text-image intersemiotic relations. The research is based on a cross-analysis of English and Italian editorial articles published between 2009 and 2012. In both corpora, metaphorical realizations frame the economic crisis which hit the single currency and the eurozone in 2009 as a partial collapse and hint at a possible return to stability in the form of a recovery. The aim of this paper is to analyse the collapse/caduta and recovery/ripresa metaphors across languages in the press. Ian Robinson reports on using corpus linguistics to aid students in writing a creative text. He looks at the available literature to help understand what is meant by ‘creativity’. A worksheet was prepared using a corpus linguistic analysis of modern, English versions of the stories of the Brothers Grimm. This worksheet was constructed with the use of a specialized corpus, and a stop-list was created which contained single words as well as word clusters found in the tales. Students were then asked to select some of these words and phrases to help them write stories which were then analysed, and a follow-up questionnaire was used to elicit the students’ perceptions concerning creativity. The author concludes that creativity is essential in EFL and that it is something to be fostered in students

    Benefits of distribution-level power electronics for supporting distributed generation growth

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    It is expected that distribution networks will be required to accommodate large amounts of distributed generation (DG). Keeping power flows and voltages within their limits will require either traditional infrastructure upgrades or active compensation. The form of active compensation (e.g., series, shunt, back to back, multiterminal), quantity, and rating of the compensator should be chosen to realize the best cost-benefit ratio. Distributed-generator and compensator placement algorithms are used with a power-flow and constraint satisfaction algorithm to analyze a large number of case studies (using real U.K. network data). From these cases, assessments of compensator performance are made and summarized statistically. When considering incremental deployment across all networks, with the site of greatest benefit chosen at each increment, it is found that static synchronous compensators provide the most favorable cost-benefit ratio. In contrast, multiterminal voltage-source converters tend to provide the greatest flexibility when considering uniform deployment across all networks. It is also observed that traditional reinforcement enhances the benefits provided by active compensation

    Dynamic Reserve Power Point Tracking in Grid-Connected Photovoltaic Power Plants

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    This article introduces a dynamic power reserve control methodology called reserve power point tracking (RPPT) for grid-connected photovoltaic (PV) plants. The proposed RPPT methodology is employed to ensure availability of the required power reserve to support the grid and accordingly facilitate high penetration of PV generation in the grid. Implementing this control methodology does not require any extra hardware. The proposed methodology regulates the average PV power dynamically by periodically operating on and off the maximum power point (MPP) in order to inject a constant desired power into the grid. Tracking a desired power reference implies that the proposed methodology is a form of flexible power point tracking (FPPT). However, unlike a traditional FPPT, the proposed methodology also provides updated information of the available maximum PV power. Hence, the RPPT fulfills both FPPT and maximum power point tracking (MPPT) functionalities simultaneously. The proposed methodology extracts the MPP information and uses this information to calculate and regulate the amount of PV reserve power. One of the main advantages of the proposed algorithm is its applicability under partial shading conditions. Its effectiveness is demonstrated by experimental results under changing solar irradiance, grid frequency deviation, and partial shading conditions
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