2,085 research outputs found
Autonomous underwater vehicles: future platforms for fisheries acoustics
No full textAutonomous underwater vehicles (AUVs) are unmanned submersibles that can be pre-programmed to navigate in three dimensions under water. The technological advances required for reliable deployment, mission control, performance, and recovery of AUVs have developed considerably over the past 10 years. Currently, there are several vehicles operating successfully in the offshore industries as well as in the applied and academic oceanographic sciences. This article reviews the application of AUVs to fisheries- and plankton-acoustics research. Specifications of the main AUVs currently in operation are given. Compared to traditional platforms for acoustic instruments, AUVs can sample previously impenetrable environments such as the sea surface, the deep sea, and under-sea ice. Furthermore, AUVs are typically small, quiet, and have the potential to operate at low cost and be unconstrained by the vagaries of weather. Examples of how these traits may be utilized in fisheries-acoustics science are given with reference to previous work in the North Sea and Southern Ocean and to potential future applications. Concurrent advances in multi-beam sonar technology and species identification, using multi-frequency and broadband sonars, will further enhance the utility of AUVs for fisheries acoustics. However, before many of the more prospective applications can be accomplished, advances in power-source technology are required to increase the range of operation. The paper ends by considering developments that may turn AUVs from objects sometimes perceived as science fiction into instruments used routinely to gather scientific fact
Conceptual Design Automation: Abstraction complexity reduction by feasilisation and knowledge engineering
No full textIn order to keep innovating, engineers are working more and more with engineering software, providing them a way to cut away their routine and repetitive activities. Computer aided design and simulation software are for instance considered standard tools in most engineering companies. Today, to solve complex engineering design problems, multidisciplinary design optimisation (MDO) is increasingly used to automate the design process to support the engineer in finding a solution faster. To effectively use MDO, design frameworks such as the design and engineering engine (DEE) are required. More and more does engineering software provide a seamless integration of computer software and human knowledge, a focus point of the field of knowledge engineering (KE). This will free engineers from repetitive and routine tasks and allow them to use their full creative capacity and learn faster, increasing their productivity. This work contributes to the development of KE applications within the DEE to support the MDO process. The focus is on the conceptual design phase of complex systems engineering, responsible for providing an initial start vector for MDO. Aircraft design is taken as a guiding example as it is a typical case of a complex system.Design of Aircraft and RotorcraftAerospace Engineerin
The literary phenomenon of 'conflation’ in the reworking of Paul’s letter to the Colossians by the author of the letter to the Ephesians
No full textThis thesis is concerned with the nature of the relationship of the Letter to the Ephesians (Eph) to Paul's Letter to the Colossians (Col).The first three chapters seek to argue that this relationship should be designated as "literary dependent". In Chapter I the suggestion made by A.T. Lincoln (Dallas [Texas], 1990) that the contemporary redaction of the Letter of Aristeas by Josephus in his Jewish Antiquities, Book XII, §§ 11-118 is similar to the use the author of Eph made of Col, is exposed to critical review. Chapter II focuses on the phenomenon of repeated 'conflation' in Eph. This literary phenomenon entails that several 'Colossian' texts from different parts of Col are conflated by the author of Eph into one passage and is subjected to exhaustive analysis. It is argued that conflation is the main feature of the literary dependence of Eph on Col but does not occur in Josephus' reworking of the Letter of Aristeas. Chapter III continues the comparison between the method of reworking employed in the Jewish Antiquities and in Eph by pointing out that the fluctuation in verbatim agreement of one document with its source can be meaningful. Chapter IV provides the new synopsis of both letters on which the whole examination is based. This synoptic overview is a desideratum since the previous synoptic editions of the Greek text of both letters by E.J. Goodspeed (Chicago, 1933) and C.L. Mitton (Oxford, 1951) are not accurate enough and unsuitable for research that focuses on the conflations of 'Colossian' verses in Eph. The fifth and last chapter deals with the question why Eph is literary dependent on Col and shows that despite the literary dependence, the theology of Eph is distinctive in comparison with its source Col. The distinctiveness of Eph's theology consists in a critical modification of the stress which Col places on Christ's already accomplished victory over the cosmic powers (Co/ 2.15). In order to safeguard an authoritative reception of his modification of Col, the author of Eph presented his letter as the parallel letter of Col alluded to m Col 4.16. The literary dependence on Col is necessary both to modify its content and to present his own writing as its parallel letter
Fish do not avoid survey vessels
No full textThe precarious condition of the world's fisheries is making ever-greater demands of the scientific assessment of fish stocks. Traditional assessments that rely on commercial catch statistics can have major shortcomings (as shown, for example, by the collapse of Canada's northern cod stock), increasing the need for more fishery-independent data. Acoustic surveys can provide such information, but ocean-going research vessels have high operating costs, and there is also widespread concern that fish avoid these vessels because of the noise they make, thereby biasing abundance estimates. Here we present new data gathered by an autonomous underwater vehicle (AUV) showing that vessel avoidance is not a significant source of bias. Our investigation also heralds the arrival of AUVs as effective survey platforms
Catherine The Faithful Queen Dowager
No full text<p>4. Catherine The Faithful Queen Dowager</p>
<p>Author / Authors : Charles E.J. Moulton<br>Page no. 56 – 68<br>Discipline : History/Swedish History<br>Script/language : Roman/English</p>
<p>Category : Research paper</p>
<p>Keywords: Swedish history, Renaissance women, Arranged marriages, 16th century royalty.</p>
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Introduction
No full textCONTENTS:
List of Tables;
List of Plates;
Acknowledgements;
Notes on the Contributors;
Introduction: P.Garside, E.J.Clery & C.Franklin;
PART I: AUTHORSHIP Anne Grant and the Professionalization of Privacy; P.Perkins Women Poets and Anonymity in the Romantic Era; P.R.Feldman Walter Scott: Anonymity and the Unmasking of the Harlequin; C.Lamont James Hogg and his Publishers: The Queen's Wake and Queen Hynde; D.S.Mack Author and Community: John Clare and John Taylor; P.Chirico PART II: COMMERCE Eliza Haywood and the Discourse of Taste; R.W.Jones Camilla in the Market Place: Moral Marketing and Feminist Editing in 1796 and 1802; S.Salih Economics, Expertise, Enterprise and the Literary Scene: The Commercial Management Ethos in British Circulating Libraries; C.Skelton-Foord Popular Romanticism?: Publishing, Readership and the Making of Literary History; B.Colbert PART III: THE PUBLIC Cultures of Print: Mass Markets and Theories of the Liberal Public Sphere; J.Stoddart 'The Hastings Circle': Writers and Writing in Calcutta in the Last Quarter of the Eighteenth Century; M.J.Franklin A 'Memorable Grave': The Abject Subtext of Charles Lloyd's Edmund Oliver; P.Keen State Patronage and the Romantic Writer: Henry Taylor's Modest Proposal; W.Christi
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