Academic literature on the topic 'Allenyl addition'

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Journal articles on the topic "Allenyl addition"

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Ma, Shengming. "Control of regio- and stereoselectivity in electrophilic addition reactions of allenes." Pure and Applied Chemistry 79, no. 2 (2007): 261–67. http://dx.doi.org/10.1351/pac200779020261.

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The halohydroxylation reaction of 1,2-allenyl sulfoxides exhibits E-selectivity while those of analogous sulfides and selenides show Z-selectivity. Rationales for the stereoselectivities are proposed. The reaction of 2,3-allenols with X+ affords 3-halo-2,5-dihydrofurans or 3-halo-3-enals depending on the nature of the alcohols.
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Chong, Qinglei, Shuoqing Zhang, Fengchang Cheng, Jiping Wang, Xin Hong, and Fanke Meng. "N-Heterocyclic Carbene–Cu-Catalyzed Enantioselective Allenyl Conjugate Addition." Organic Letters 20, no. 21 (2018): 6896–900. http://dx.doi.org/10.1021/acs.orglett.8b03029.

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Yamamoto, Yoshinori, Mohammad Al-Masum та Akira Takeda. "Palladium catalysed γ-addition of pronucleophiles to allenyl sulfieds". Chem. Commun., № 7 (1996): 831–32. http://dx.doi.org/10.1039/cc9960000831.

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Reissig, Hans-Ulrich, and Reinhold Zimmer. "Cyclizations of Alkoxyallenes: Mechanisms, Intermediates, ­Products – A Personal Account on Solved and Unsolved Problems with Unique Allene Building Blocks." Synthesis 49, no. 15 (2017): 3291–302. http://dx.doi.org/10.1055/s-0036-1588846.

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The additions of lithiated alkoxyallenes to electrophiles, such as carbonyl compounds, thioketones, imines, and nitrones, provide the expected primary addition products. These alkoxyallene intermediates undergo ring-closure reactions under quite different conditions. Whereas allenyl hydroxylamine derivatives spontaneously cyclize to 1,2-oxazine derivatives, the related allenyl amines, thiols, and alcohols require, with distinct exceptions, promotion by acids, base, silver(I), or gold(I). The different mechanisms of these processes are discussed in this account. The serendipitous discovery of a
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Sigman, Matthew S., and Bruce E. Eaton. "Addition of primary amines to conjugated allenyl aldehydes and ketones." Tetrahedron Letters 34, no. 34 (1993): 5367–68. http://dx.doi.org/10.1016/s0040-4039(00)73910-4.

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Vrancken, Emmanuel, Nacira Alouane, Hélène Gérard, and Pierre Mangeney. "Addition of Hetero Allenyl Copper Reagents to Aldehydes: Scope and Behavior." Journal of Organic Chemistry 72, no. 5 (2007): 1770–79. http://dx.doi.org/10.1021/jo062344z.

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YAMAMOTO, Y., M. AL-MASUM та A. TAKEDA. "ChemInform Abstract: Palladium Catalyzed γ-Addition of Pronucleophiles to Allenyl Sulfides." ChemInform 27, № 32 (2010): no. http://dx.doi.org/10.1002/chin.199632087.

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Silvestri, Maximilian A., Deborah C. Bromfield, and Salvatore D. Lepore. "Michael−Stork Addition of Cyclopentyl Enamine to Allenyl Ketones and Esters." Journal of Organic Chemistry 70, no. 20 (2005): 8239–41. http://dx.doi.org/10.1021/jo0512103.

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Song, Yulong, Shihua Song, Xinyu Duan, et al. "Copper-catalyzed radical approach to allenyl iodides." Chemical Communications 55, no. 78 (2019): 11774–77. http://dx.doi.org/10.1039/c9cc05853b.

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Kazmaier, Uli, and Simon Lucas. "Allenyl Ketones as Versatile Michael Acceptors for the Addition of Chelated Enolates." Synlett, no. 2 (2006): 255–58. http://dx.doi.org/10.1055/s-2005-923591.

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Dissertations / Theses on the topic "Allenyl addition"

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Wu, Hao. "Catalytic Enantioselective Formations of C–B, C–C and C–Si Bonds by Organic Molecules or Transition-Metal Complexes." Thesis, Boston College, 2015. http://hdl.handle.net/2345/bc-ir:104759.

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Thesis advisor: Amir H. Hoveyda<br>Catalytic enantioselective reactions are of great importance in synthetic organic chemistry. Thus, development of efficient, selective and easily accessible catalyst for various bond formations is the main task in our laboratories. First, we have developed the first broadly applicable enantioselective boryl conjugate addition reactions to a variety of α,β-unsaturated carbonyls, promoted by a chiral Lewis basic N-heterocyclic carbene. The valuable β-boryl carbonyls were further used in complex molecule syntheses. The mechanism of these C–B bond formations was
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Richter, Frank. "Development of the Solution-Spray Flash-Vacuum-Pyrolysis Technique in the Synthesis of Allenyl Isothiocyanates and Synthesis of Complex 2-Amino-1,3-thiazole Derivatives." Doctoral thesis, Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-175339.

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Gas-phase thermolysis is a long-known and well established method for the preparation of reactive species. It is, however, limited to relatively volatile substances, which are easily vaporised. In the present work, the solution-spray technique for preparative scale was developed. With this technique, it is possible to subject low-volatile substances, which hardly vaporise even under high-vacuum conditions, to gas-phase thermolysis. By utilising oil nozzles used in heating and burner systems, it was possible to integrate a stable solution-spray into the existing flash-vacuum-pyrolysis system. T
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Cooper, Lisa. "Synthesis of multi-heteroaromatic compounds by platinum-catalysed nucleophilic addition to allenes." Thesis, University of East Anglia, 2017. https://ueaeprints.uea.ac.uk/66858/.

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This thesis describes the extensive investigation into the platinum-catalysed double addition of nucleophiles to allenes and in particular, our efforts towards the synthesis of 2,3’-bis-indolyl methanes (BIMs), which are important compounds with potential biologically important properties. The first chapter will describe the background of both inter- and intramolecular addition reactions to allenes with a range of different nucleophiles and array of metal catalysts. The latter part of this chapter will focus on the two synthetic strategies for BIM formation, firstly, the classical approach inv
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Liu, Zi [Verfasser], and Bernhard [Akademischer Betreuer] Breit. "Rhodium-catalyzed addition of alcohols and N-hydroxy imides to allenes and alkynes." Freiburg : Universität, 2017. http://d-nb.info/1153335298/34.

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Wang, Yu-Hsuan [Verfasser]. "Enantioselective Rhodium-Catalyzed Addition of Imines and Oximes to Allenes / Yu-Hsuan Wang." München : Verlag Dr. Hut, 2018. http://d-nb.info/1174426101/34.

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Beck, Thorsten M. [Verfasser]. "Rhodium-catalyzed atom economic addition of enolizable 1,3-dicarbonyl compounds to allenes and alkynes / Thorsten M. Beck." München : Verlag Dr. Hut, 2017. http://d-nb.info/1135597006/34.

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Spreider, Pierre [Verfasser]. "Übergangsmetall-Katalysierte Atomökonomische Intramolekulare Additionen von Pronukleophilen an Allene und deren Anwendung in Totalsynthesen / Pierre Spreider." München : Verlag Dr. Hut, 2018. http://d-nb.info/1174426187/34.

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Spreider, Pierre A. [Verfasser]. "Übergangsmetall-Katalysierte Atomökonomische Intramolekulare Additionen von Pronukleophilen an Allene und deren Anwendung in Totalsynthesen / Pierre Spreider." München : Verlag Dr. Hut, 2018. http://d-nb.info/1174426187/34.

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Scharf, Ingolf. "Synthesen und Reaktionen akzeptorsubstituierter Diallene." Doctoral thesis, [S.l. : s.n.], 2009. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200900168.

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Arnaout, Abdulkarim al. "Synthese regioselective de dihydropyridines et de pyridines 2- ou 4-fonctionnalisees : applications." Poitiers, 1987. http://www.theses.fr/1987POIT2254.

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Books on the topic "Allenyl addition"

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Press, Allen. The Allen Press bibliography: A facsimile with original leaves and additions to date, including a checklist of ephemera. Bookclub of California, 1985.

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M, Allen Lewis, Allen Dorothy 1908-, and Allen Press, eds. The Allen Press bibliography: A facsimile with original leaves and additions to date, including a checklist of ephemera. Book Club of California, 1985.

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San Francisco (Calif.). Office of the Controller. City Services Auditor Division. Board of Supervisors: NRG Energy Center San Francisco LLC owes additional franchise fees for 2003 through 2005. Office of the Controller, 2006.

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Ezell, Margaret J. M. Theatrical Entertainments Outside the London Commercial Playhouses: Smock Alley, Strollers, School Plays, and Private Performances. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198183112.003.0016.

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In addition to London commercial theatres, audiences enjoyed dramatic performances performed by strolling companies at local fairs, provincial inns, and in private performance. Dublin’s theatre at Smock Alley offered recent and classical plays. In England, both boys’ and girls’ schools included original performances as part of their curriculum, including interludes and operas that were later done on the professional stage.
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Burrows, Andrew. Remedies for Torts, Breach of Contract, and Equitable Wrongs. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198705932.001.0001.

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The fourth edition of Andrew Burrows' seminal work Remedies for Torts, Breach of Contract, and Equitable Wrongs (previously Remedies for Torts and Breach of Contract), updates and extends coverage of judicial remedies for civil wrongs in English law. Since the release of the previous edition in 2004, the scope of discussion in the book has developed to include many contemporary case studies. Examples of these include Morris-Garner v One Step Ltd on negotiating damages, Milner v Carnival on quantum of mental distress damages, Forsyth Grant v Allen on restitution for torts, to name but a few, as
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Grace, Nancy M., ed. The Beats. Liverpool University Press, 2021. http://dx.doi.org/10.3828/liverpool/9781949979954.001.0001.

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This volume is the first-ever collection devoted to teaching Beat literature in high school to graduate-level classes. Essays address teaching topics such as the history of the censorship of Beat writing, Beat spirituality, the small press revolution, Beat composition techniques and ELL, Beat multiculturalism/globalism and its legacies, techno-poetics, the road tale, Beat drug use, the Italian-American Beat heritage, Beats and the visual arts of the 1960s, the Beat and Black Mountain confluence, Beat comedy, Beat performance poetry, Beat creative non-fiction, West coast-East/coast Beat communi
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Behmer, Markus, and Vera Katzenberger, eds. Vielfalt vor Ort. Die Entwicklung des privaten Rundfunks in Bayern. University of Bamberg Press, 2021. http://dx.doi.org/10.20378/irb-49753.

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In der bayerischen Verfassung steht seit 1973, dass Rundfunk allein in öffentlich-rechtlicher Trägerschaft betrieben wird. Seit Mitte der 1980er Jahre hat sich aber gerade im Freistaat die vielfältigste privatwirtschaftliche Radio- und Fernsehlandschaft entwickelt. In jeder größeren Stadt, in allen Regierungsbezirken gibt es lokale Sender. Auf 600 Seiten bietet der Band einen Überblick, wie sich diese Medienszene unter dem Dach der Bayerischen Landeszentrale für neue Medien (BLM) entwickelt hat – von der Vorgeschichte bis in die Gegenwart. In sechs Kapiteln und mehr als 30 Aufsätzen werden Ein
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Verschuur, Gerrit L. Impact! Oxford University Press, 1996. http://dx.doi.org/10.1093/oso/9780195101058.001.0001.

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Most scientists now agree that some sixty-five million years ago, an immense comet slammed into the Yucatan, detonating a blast twenty million times more powerful than the largest hydrogen bomb, punching a hole ten miles deep in the earth. Trillions of tons of rock were vaporized and launched into the atmosphere. For a thousand miles in all directions, vegetation burst into flames. There were tremendous blast waves, searing winds, showers of molten matter from the sky, earthquakes, and a terrible darkness that cut out sunlight for a year, enveloping the planet in freezing cold. Thousands of sp
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Book chapters on the topic "Allenyl addition"

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Winter, Christian, and Norbert Krause. "Gold-Catalyzed Addition Reactions to Allenes." In Modern Gold Catalyzed Synthesis. Wiley-VCH Verlag GmbH & Co. KGaA, 2012. http://dx.doi.org/10.1002/9783527646869.ch16.

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Carrillo, Y., and C. Jordan. "Modeling Green Manure Additions in Alley-Cropping Systems: Linking Soil Community Dynamics and Nitrogen Mineralization." In Advances in Agroforestry. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6572-9_16.

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Nubbemeyer, U. "Addition to Allenyl Sulfoxides." In X-Ene-X (X=F, Cl, Br, I, O, S, Se, Te, N, P), Ene-Hal, and Ene-O Compounds. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-032-00160.

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Drabowicz, J., J. Lewkowski, W. Kudelska, and T. Girek. "Addition Reactions of Allenyl Sulfones." In Sulfur, Selenium, and Tellurium. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-00207.

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Nubbemeyer, U. "Addition to Allenyl Sulfides or Selenides." In X-Ene-X (X=F, Cl, Br, I, O, S, Se, Te, N, P), Ene-Hal, and Ene-O Compounds. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-032-00158.

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Nubbemeyer, U. "Addition to Allenyl Sulfoxides with Concomitant Reduction." In X-Ene-X (X=F, Cl, Br, I, O, S, Se, Te, N, P), Ene-Hal, and Ene-O Compounds. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-032-00159.

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Nubbemeyer, U. "Addition to Allenesulfinic Acids and Allenyl Sulfones." In X-Ene-X (X=F, Cl, Br, I, O, S, Se, Te, N, P), Ene-Hal, and Ene-O Compounds. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-032-00161.

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Chandler, C., R. R. Torres, A. Erkkilä, and B. List. "Synthesis by Addition of Aziridines to Alk-1-ynyl Sulfoxides, Allenyl Sulfoxides, or Allenyl Sulfones." In X-Ene-X (X=F, Cl, Br, I, O, S, Se, Te, N, P), Ene-Hal, and Ene-O Compounds. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-032-00366.

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Reissig, H. U., and R. Zimmer. "Addition Reactions." In Cumulenes and Allenes. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-044-00268.

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Ogasawara, M. "Synthesis by Addition." In Cumulenes and Allenes. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-044-00078.

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Conference papers on the topic "Allenyl addition"

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Sahoo, Seshadev, and Kevin Chou. "Review on Phase-Field Modeling of Microstructure Evolutions: Application to Electron Beam Additive Manufacturing." In ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/msec2014-3901.

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Powder-bed electron beam additive manufacturing (EBAM) is a relatively new technology to produce metallic parts in a layer by layer fashion by melting and fusing metallic powders. EBAM is a rapid solidification process and the properties of the parts depend on the solidification behavior as well as the microstructure of the build material. Thus, the prediction of part microstructures during the process may be an important factor for process optimization. Nowadays, the increase in computational power allows for direct simulations of microstructures during materials processing for specific manuf
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Tang, Hung, and Ma'moun Abu-Ayyad. "Improving Boiler Efficiency Using PLC Controller." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-86100.

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Boiler systems have many factors that affect the efficiency of the air conditioning process. A traditional control system is complicated and requires physical hardware and software programming. The modern operator console is more compact and works better. Regardless of the boiler system, the operator can run it automatically, allowing changes in many variables such as fuel input, air combustion, water feed flow, steam temperature, etc. In fact, it is impossible to control all of these variables simultaneously in the manual mode. Modern systems have been developed to a high degree of precision
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Tahara, Takayasu, Takuyo Kaida, Minoru Niimura, and Shinsuke Sakai. "Study on LTA Measurement for FFS Assessment." In ASME 2015 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/pvp2015-45658.

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FFS assessment technologies for pressure equipment have been studied and standardized in recent 15 years in Japan. FFS assessment of local thin area, LTA, is the most frequently used in process industries. However reliability of thickness measurement of LTA and influence to FFS assessment has not been studied much in the past. Uncertainty of thickness measurements and Remaining Strength Factor, RSF, were investigated on Round Robin Testing using manual UT and additional new technology such as flexi-alley UT and 3D LED system for LTA in pipes, It is recommended to use suitable combination of Ma
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Akhtar, M. Wasy, and Holley C. Love. "Computations of Single and Multiphase Flows Using a Lattice Boltzmann Solver." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93817.

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Abstract There is considerable interest in high fidelity simulation of both single phase incompressible flows and multiphase flows. Most commonly applied numerical methods include finite difference, finite volume, finite element and spectral methods. All of these methods attempt to capture the flow details by solving the Navier–Stokes equations. Challenges of solving the Navier–Stokes single phase incompressible flows include the non-locality of the pressure gradient, non-linearity of the advection term and handling the pressure-velocity coupling. Multiphase flow computations pose additional c
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Maisondieu, Christophe, O̸yvind Breivik, Jens-Christian Roth, Arthur A. Allen, Bertrand Forest, and Marc Pavec. "Methods for Improvement of Drift Forecast Models." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-20219.

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Over the past decades, various operational drift forecast models were developed for trajectory prediction of objects lost at sea for search and rescue operations. Most of these models are now based on a stochastic, Monte Carlo definition of the object’s initial position and its time-evolving search area through computation of an ensemble of equally probable trajectories (Breivik [1]). Uncertainties in environmental forcing, mainly surface currents and wind, as well as the uncertainties inherent in the simplified computation of leeway speed and direction relative to the wind are also accounted
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McGuire, B., R. Sarunac, and R. B. Wiley. "Wayside Wheel/Rail Load Detector Based Rail Car Preventive Maintenance." In ASME/IEEE 2007 Joint Rail Conference and Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/jrc/ice2007-40015.

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To assess rail car operational performance and to identify poorly performing rail cars early, the Washington Metropolitan Area Transit Authority (WMATA) has acquired and installed a Wayside Wheel/Rail Load Detector (WRLD) and measuring system at one of its yards. The WRLD determines truck performance by measuring lateral loads, vertical loads, and angles of attack (and corresponding derived values such as lateral to vertical (L/V) ratios, speed, average car weight, and total train weight) as vehicles and trains pass the detector. The Association of American Railroads (AAR) introduced this tech
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Joshi, V., P. S. Gurugubelli, Y. Z. Law, R. K. Jaiman, and P. F. B. Adaikalaraj. "A 3D Coupled Fluid-Flexible Multibody Solver for Offshore Vessel-Riser System." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78281.

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Precise position and motion control of offshore vessels is often challenging, especially in harsh environment due to highly nonlinear dynamic loads from free-surface ocean waves and currents. In addition, coupled nonlinear effects of risers and mooring cables connected to the vessel can lead to unexpected responses, thus justifying the significance of modeling these nonlinear coupled effects for safer and cost-effective design and operation of offshore structures. In this study, a fully coupled multi-field fluid-structure-interaction (FSI) solver is developed to simulate the wave- and flow-ind
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Lall, Pradeep, Madhura Hande, Chandan Bhat, and Jeff Suhling. "Leading Prognostic Indicators for Health Management of Electronics Under Thermo-Mechanical Stresses." In ASME 2007 InterPACK Conference collocated with the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ipack2007-33876.

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Methodologies for prognostication and health monitoring can significantly impact electronic reliability for applications in which even minimal risk of failure may be unbearable. Presently, health monitoring approaches such as the built-in self-test (BIST) are based on reactive failure diagnostics and unable to determine residual-life or estimate residual-reliability [Allen 2003, Drees 2004, Gao 2002, Rosenthal 1990]. Prognostics health-monitoring (PHM) approach presented in this paper is different from state-of-art diagnostics and resides in the pre-failure-space of the electronic-system, in w
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Lall, Pradeep, Madhura Hande, Chandan Bhat, and Jeff Suhling. "Methodologies for System-State Interrogation for Prognostication of Electronics Under Thermo-Mechanical Loads." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-42560.

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Methodologies for prognostication and health monitoring can significantly impact electronic reliability for applications in which even minimal risk of failure may be unbearable. Presently, health monitoring approaches such as the built-in self-test (BIST) are based on reactive failure diagnostics and unable to determine residual-life or estimate residual-reliability [Allen 2003, Drees 2004, Gao 2002, Rosenthal 1990]. Prognostics health-monitoring (PHM) approach presented in this paper is different from state-of-art diagnostics and resides in the pre-failure-space of the electronic-system, in w
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Best, H. G., and M. E. Koss. "Rotor Welding: TVA Experience." In ASME 2008 Power Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/power2008-60035.

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TVA has a fleet of 59 units with 187 large steam fossil turbine rotors, 68 fossil generators, and 27 auxiliary turbine rotors, in-service. The original equipment manufacturers (OEM) rotors have three designs some welded, others are shrunk on disk, but the majority of the rotors are mono-block. TVA has worked with OEM’s, third parties, and with-in TVA to perform weld repairs on rotors. Rotor Problems requiring welding: 1. Journal/gland damage due to lubrication failure and/or wear. 2. Attachment area damage due to cracks or distortion. 3. Attachment area due to changes in design. In the TVA fle
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