17,552 research outputs found

    Introduction

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    Richard P. Reed

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    RICHARD P. REED Inducted: 1995 Citation: For leadership in cryogenic materials research and fracture mechanics metals Tenure: 1956‑1990 Birth: 1934, Hammond, Indiana Education: Purdue University, BS (Metallurgy), 1956 University of Colorado, MS (Metallurgy), 1957 Colorado School of Mines, MS (Metallurgy), 1961 University of Denver, PhD (Metallurgy), 1966 Positions held: Supervisory Metallurgist Chief, Cryogenic Propagation of Solids Section Chief, Fracture and Deformation Division (Gaithersburg and Boulder) Honors: U.S. Department of Commerce: Silver Medal 1979; Gold Medal 1983 Alaska Oil Pipeline Special Achievement Award, 1976 Hyatt Regency Project Group Award, 1982 Colorado Federal Scientist of the Year, 1989 Memberships: American Physical Society American Society of Metals American Institute of Mining, Metallurgical and Petroleum Engineers American Society for Testing Materials American Welding Society National Science Foundation Advisory Panel on Metal Science and Technology Metals Properties Council Technical Advisory Committee Publications: Author of over 300 technical papers, reports and book chapters on cryogenic materials research and fracture mechanics; editor of a number of books, particularly on cryogenic engineering; editor of series: Advances in Cryogenic Engineering and Cryogenic Materials. Organized first International Cryogenic Materials Conference, 1978

    The use of reed canary-grass (Phalaris arundinacea) as a short fibre raw material for the pulp and paper industry

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    This thesis describes the use of delayed harvested reed canary-grass (Phalaris arundinacea) as a short fibre raw material for the pulp and paper industry. This study examines the following aspects of reed canary-grass: quality, transportation, storage, refining of the raw material by dry fractionation, chemical pulping, bleaching and paper production. The delayed harvesting method of reed canary-grass produces an economically and environmentally sustainable short fibre raw material for the pulp and paper industry. The ash content and fibre properties of reed canary-grass depend on soil type and growing location. The yearly variation in fibre yield and fibre properties is also considerable. There is, however, a potential for minimising quality variations by choosing reed canary-grass varieties suitable to a specific growing location. The leaf and leaf sheath content of reed canary-grass also affects the quality of the pulp. These quality variations can be eliminated by dry fractionation, a method that removes the unwanted parts of the grass. These unwanted parts can be used as a valuable bio-fuel raw material. Transport of reed canary grass after fractionation can be improved by briquetting, a method that doubles the transport capacity of reed canary-grass compared to that of birch logs on a fibre basis. High quality short fibre chemical pulp can be produced from reed canary-grass. The whole process from grass production to pulp production has been demonstrated successfully in full scale. Bleached reed canary-grass pulp can be used in products such as fine paper and white-top liner paper

    Assessment of tertiary reed beds in chemically-dosed wastewater treatment plants for phosphorus removal

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    Eutrophication is one of the problems affecting the environmental quality standards of fresh waters. Phosphorus (P) is considered a main nutrient contributing to this. In the UK, the Water Industry is responsible for c. 50% of the total phosphorus load to freshwater ecosystems. Within this, small wastewater treatment plants (WwTPs) (<2,000 population equivalent) have a significant role since they represent 75% of all WwTPs in the UK. The current option for P removal from wastewater is chemical precipitation through the dosing of iron (Fe) salts in combination with a tertiary filtration treatment step. This study aims to determine the transformation processes whereby tertiary reed beds permanently store or release iron and phosphorus in chemically-dosed sites to provide recommendations regarding the conditions where reed beds can be used as such final filtration treatment in small WwTPs. This was carried out through sampling campaigns in 14 full-scale tertiary reed beds. Chemically-dosed WwTPs with tertiary reed beds can perform satisfactorily achieving phosphorus removals above 85% and average P and Fe final effluent concentrations of 0.7 mg P/L and 0.2 mg Fe/L, respectively, both well below consents (2 mg TP/L and 4 mg Fe/L). The majority of the total phosphorus in the reed bed influents was associated to either suspended solids or dissolved fractions, whereas 60¬90% of the effluent TP is in the dissolved form. Occasional episodes of phosphorus release from the reed bed can occur, as evidenced in an increase in soluble reactive phosphorus in the effluent. The main mechanism for trapping of Fe and P in mature beds was settlement of suspended particles, with phosphorus and iron concentrations in the accumulated sludge being up to 55.9 g P/kg dry matter and 246.6 g Fe/kg DM. The removal of particulate pollutants was successful in the reed beds studied, but colloidal and dissolved particles passing through the beds untreated. This could compromise the use of reed beds with future tightening P consents if the current chemical dosing practices are unchanged

    Episcopatvs Albiensis = Evesché d'Alby / Amstelaedami apud G. Valk et P. Schenk

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    1 mapa. Dedicatòria a Gaspardo de Daillon. - PUblicat dins: Atlantis sylloge compendiosa... Amsterdam: P. Schenk i G. Valck, c.1702 en llapis, 1683?, reed. de Geographia Blaviana. Datat al 1683 aproximadament.1:150 000 aprox.60 x 71 c

    Episcopatvs Albiensis = Evesché d'Alby / Amstelaedami apud G. Valk et P. Schenk

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    1 mapa. Dedicatòria a Gaspardo de Daillon. - PUblicat dins: Atlantis sylloge compendiosa... Amsterdam: P. Schenk i G. Valck, c.1702 en llapis, 1683?, reed. de Geographia Blaviana. Datat al 1683 aproximadament.1:150 000 aprox.60 x 71 c

    Desenvolvimento em linguagem de descrição de hardware de codificador e decodificador Reed-Solomon

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    Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2014.Atualmente, diversos sistemas de comunicação demandam grandes volumes de tráfego de dados para consumo quase instantâneo. Estes dados devem ser entregues aos usuários tal qual foram gerados: sem erros. Por isso, técnicas de controle e correção de erros estão intrinsecamente ligadas aos sistemas que realizam trocas de dados, sejam sistemas de armazenamento, os quais estão sujeitos a falhas durante a leitura, ou sistemas de comunicação, que estão sujeitos às adversidades do meio (radiação, interferência eletromagnética, desvanecimento, entre outros). Neste cenário, os códigos Reed-Solomon representam uma solução viável para inúmeras aplicações, bem como pesquisas acadêmicas, mesmo tanto tempo após sua invenção. Este trabalho realiza um estudo da teoria que embasa os códigos Reed-Solomon, assim como implementa as técnicas do estado-da-arte dos módulos que compõem tanto o codificador quanto o decodificador, as quais são prototipadas em hardware reconfigurável.<br

    FNT-based reed-solomon erasure codes

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    This paper presents a new construction of Maximum-Distance Separable (MDS) Reed-Solomon erasure codes based on Fermat Number Transform (FNT). Thanks to FNT, these codes support practical coding and decoding algorithms with complexity O(n log n), where n is the number of symbols of a codeword. An open-source implementation shows that the encoding speed can reach 150Mbps for codes of length up to several 10,000s of symbols. These codes can be used as the basic component of the Information Dispersal Algorithm (IDA) system used in a several P2P systems

    Go Thou and Dream

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    80.7568.422 – “Go Thou and Dream”: Arranged by Meineke, C.: G. P. Reed: Boston: Minstrel, Ballad, Love Song: n.d.: Solo Voice

    [The] Sultans Band March

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    80.7568.1164 – “[The] Sultans Band March”: Francis H. Brown: G. P. Reed: 1846: Piano
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