196,447 research outputs found

    A modular FPGA-based ultrasonic array system for applications including non-destructive testing

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    This paper reports work aimed at the development of an ultrasonic imaging system comprising modular, reprogrammable building blocks, or tiles, which can be customised for multiple applications, including and within non-destructive testing (NDT), by the user. The key component is an autonomous module containing the ultrasonic array and all the electronics necessary to operate it. This contrasts with most previous research on system integration which has focused only on the transducer and front-end electronics.<p></p> In the present work, a 4 4 element 2D piezoelectric array with a 16 mm 16 mm aperture has been produced, with the entire transmission and reception electronics within the same footprint. The proximity of the transducer array and electronics removes the need for cabling, reducing signal degradation due to cross talk and interference. In addition, it avoids the problem of electrical impedance matching of cable between the array elements and the electronics. <p></p> Pulse-echo insertion loss of 48 dB has been measured from back-wall reflections in 73 mm-thick aluminium without decoding, and results with decoded signals show adequate signal-to-noise ratio (SNR) with 3.3 V excitation at an operating frequency of 1.2 MHz, within the range required for deep penetration in nuclear power plant. <p></p> Crucially, the ability to construct 2D arrays of any size and shape from generic building blocks represents a departure from almost all previous work in ultrasound, which has traditionally been highly application specific. This may allow ultrasonic NDT to be used in applications for which the investment in customised devices could not previously be justified. <p></p&gt

    Dr. Duane M. Jackson, Morehouse College, July 2011

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    This video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer

    "Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.

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    "Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states. By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement. To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Dr. Glendon Swarthout

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    Hosted by Roger M. Busfield, MSU Assistant Professor of Speech and Theater, Meet the Author is designed to introduce a general audience to a contemporary author and their work through in-depth interviews. This episode features a conversation between Dr. Glendon Swarthout, prolific author and English professor at MSU, and assistant professors Sam S. Baskett and Theodore B. Strandness

    Language perculiarities of the literary translation of allegorical novellas «Dragonfly» and «Distance» by Yakub Kolas / O. M. Galai

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    Раздел 5. Актуальные вопросы литературоведения, переводоведения и практики переводаУ артыкуле разглядаецца мастацкі пераклад алегарычных навел «Страказа» і «Даль» Якуба Коласа на нямецкую мову. Аналізуюцца моўныя асаблівасці перакладу, зробленага нямецкай перакладчыцай Гундулай Чапега, яе імкненне захаваць нацыянальныя адметнасці арыгінала.В статье рассматривается художественный перевод аллегорических новелл «Стрекоза» и «Даль» Якуба Колоса на немецкий язык. Анализируются языковые особенности перевода, выполненного немецкой переводчицей Гундулай Чепега, её стремление сохранить национальные особенности оригинала.The literary translation of allegorical novellas «Dragonfly» and «Distance» by Yakub Kolas is considered in the article. Language peculiarities of the translation, made by German translator Gundula Chapega, and her intention to preserve national features of the original text are analyzed

    Language perculiarities of the literary translation of allegorical novellas «Dragonfly» and «Distance» by Yakub Kolas / O. M. Galai

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    Раздел 5. Актуальные вопросы литературоведения, переводоведения и практики переводаУ артыкуле разглядаецца мастацкі пераклад алегарычных навел «Страказа» і «Даль» Якуба Коласа на нямецкую мову. Аналізуюцца моўныя асаблівасці перакладу, зробленага нямецкай перакладчыцай Гундулай Чапега, яе імкненне захаваць нацыянальныя адметнасці арыгінала.В статье рассматривается художественный перевод аллегорических новелл «Стрекоза» и «Даль» Якуба Колоса на немецкий язык. Анализируются языковые особенности перевода, выполненного немецкой переводчицей Гундулай Чепега, её стремление сохранить национальные особенности оригинала.The literary translation of allegorical novellas «Dragonfly» and «Distance» by Yakub Kolas is considered in the article. Language peculiarities of the translation, made by German translator Gundula Chapega, and her intention to preserve national features of the original text are analyzed

    Simulation of thermal plant optimization and hydraulic aspects of thermal distribution loops for large campuses

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    Following an introduction, the author describes Texas A&M University and its utilities system. After that, the author presents how to construct simulation models for chilled water and heating hot water distribution systems. The simulation model was used in a $2.3 million Ross Street chilled water pipe replacement project at Texas A&M University. A second project conducted at the University of Texas at San Antonio was used as an example to demonstrate how to identify and design an optimal distribution system by using a simulation model. The author found that the minor losses of these closed loop thermal distribution systems are significantly higher than potable water distribution systems. In the second part of the report, the author presents the latest development of software called the Plant Optimization Program, which can simulate cogeneration plant operation, estimate its operation cost and provide optimized operation suggestions. The author also developed detailed simulation models for a gas turbine and heat recovery steam generator and identified significant potential savings. Finally, the author also used a steam turbine as an example to present a multi-regression method on constructing simulation models by using basic statistics and optimization algorithms. This report presents a survey of the author??s working experience at the Energy Systems Laboratory (ESL) at Texas A&M University during the period of January 2002 through March 2004. The purpose of the above work was to allow the author to become familiar with the practice of engineering. The result is that the author knows how to complete a project from start to finish and understands how both technical and nontechnical aspects of a project need to be considered in order to ensure a quality deliverable and bring a project to successful completion. This report concludes that the objectives of the internship were successfully accomplished and that the requirements for the degree of Degree of Engineering have been satisfied

    ANALISIS PENGARUH MONEY POLITIK DALAM PELAKSANAAN PILKADA DI PROVINSI SUMATERA UTARA (STUDI KASUS: JL.M. YAKUB KECAMATAN MEDAN PERJUANGAN)

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    Politik uang merupakan upaya menyuap pemilih dengan memberikan uang atau jasa prefensi suara pemilih dapat diberikan kepada seorang penyuap. Politik uang dilakukan untuk memperoleh suara yang banyak dan menguasai suara dalam Pilkada. Metode penelitian yang di gunakan dalam penelitian ini yaitu pendekatan kualitatif. Jumlah informan dalam penelitian ini yaitu 10 informan. Adapun teknik pengumpulan data yang di gunakan dalam penelitian yaitu dengan melakukan observasi, wawancara, dan dokumentasi. Tujuan dari penelitian ini adalah untuk mengetahui dan menggambarkan politik uang dalam pilkada 2024 di Jl. M. Yakub, Sei Kera Hilir II. Kec. Medan Perjuangan. Hasil penelitian menunjukkan bahwa masyarakat di lingkungan tersebut banyak melakukan money politik karena beberapa alasan salah satunya karena keterbatasan ekonomi masyarakat, rendahnya pendidikan, lemahnya pengawasan dan masyarakat menganggap bahwa money politik itu suatu kebudayaan atau kebiasaan. Sehingga hal tersebut memicu masyarakat untuk melakukan money politik
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