196,106 research outputs found
Intern experience at CH���M Hill, Inc.: an internship report
Get PDFIncludes author's vita"Submitted to the College of Engineering of Texas A&M University in partial
fulfillment of the requirement for the degree of Doctor of Engineering."Includes bibliographical referencesA review of the author's internship experience with CH���M HILL, Inc.
during the period September 1975 through May 1976 is presented. During this nine month
internship the author worked as an Engineer II in the Industrial Processes discipline of this
large consulting engineering firm... The author's prime responsibility was as one of three
lead design engineers on the design of a large wastewater treatment facility for a pulp mill
in Hoquiam, Washington owned by ITT Rayonier Inc. The work generally consisted of the design
of individual treatment units and associated piping and pumping. The purpose of the project
was to provide wastewater treatment capabilities that would satisfy the effluent limitations
(standards) imposed upon the mill by the State of Washington Department of Ecology and the
U.S. Environmental Protection Agency. The author's assignment also entailed necessary
interaction with the project manager and other CH���M HILL design engineers and support staff
members, the client's representatives, and representatives of two other consulting engineering
firms working on the project. Thus, the internship position at CH���M HILL provided considerable
experience coordinating the author's work with the work of other engineers, guiding the design
and administrative efforts of a support staff, and interacting regularly with the client and
other consulting firms. This broad exposure to a variety of engineering and organizational
problems provided a valuable educational experience
Simulation of thermal plant optimization and hydraulic aspects of thermal distribution loops for large campuses
Get PDFFollowing 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
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"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
Voltage Controlled Electron Spin Dynamics In Resonant Tunnelling Devices
No full textWe investigate the electron spin dynamics in a p-type GaAs/AlAs resonant tunnelling device by measuring the time- and polarized-resolved photoluminescence (PL) from the GaAs quantum well under a high magnetic field (15 T). The voltage dependence of the PL transients have revealed various tunnelling processes with different time constants that give rise to distinct spin-polarized carriers injected into the double-barrier structure. © 2014 IOP Publishing Ltd.4716Zutic, I., Fabian, J., Sarma, S.D., Spintronics: Fundamentals and applications (2004) Reviews of Modern Physics, 76 (2), pp. 323-410. , DOI 10.1103/RevModPhys.76.323Fabian, J., Matos-Abiague, A., Ertler, C., Stano, P., Zutic, I., (2010) Acta Phys. Slov., 57, pp. 565-907. , 10.2478/v10155-010-0086-8 0323-0465Wu, M.W., Jiang, J.H., Weng, M.Q., (2010) Phys. Rep., 493, p. 61. , 10.1016/j.physrep.2010.04.002 0370-1573Ohno, Y., Young, D.K., Beschoten, B., Matsukura, F., Ohno, H., Awschalom, D., (1999) Nature, 402, p. 790. , 10.1038/45509Fiederling, R., Keim, M., Reuscher, G., Ossau, W., Schmidt, G., Waag, A., Molenkamp, L.W., (1999) Nature, 402, p. 787. , 10.1038/45502Farshchi, R., Ramsteiner, M., (2013) J. Appl. Phys., 113. , 10.1063/1.4802504 191101Akiho, T., Shan, J., Liu, H., Matsuda, K., Yamamoto, M., Uemura, T., (2013) Phys. Rev., 87. , 10.1103/PhysRevB.87.235205 B 235205Yu, L., Voskoboynikov, O., Time-resolved spin filtering in semiconductor symmetric resonant barrier structures (2005) Journal of Applied Physics, 98 (2), pp. 1-5. , DOI 10.1063/1.1994945, 023716Slobodskyy, A., Gould, C., Slobodskyy, T., Becker, C.R., Schmidt, G., Molenkamp, L.W., (2003) Phys. Rev. Lett., 90. , 10.1103/PhysRevLett.90.246601 246601Ertler, C., Potz, W., (2011) Phys. Rev., 84. , 10.1103/PhysRevB.84.165309 B 165309Wojcik, P., Adamowski, J., Wołoszyn, M., Spisak, B.J., (2013) Appl. Phys. Lett., 102. , 10.1063/1.4811836 242411De Carvalho, H.B., Brasil, M.J.S.P., Lopez-Richard, V., Galvao Gobato, Y., Marques, G.E., Camps, I., Dacal, L.C.O., Hill, G., Electric-field inversion asymmetry: Rashba and Stark effects for holes in resonant tunneling devices (2006) Physical Review B - Condensed Matter and Materials Physics, 74 (4), p. 041305. , http://oai.aps.org/oai?verb=GetRecord&Identifier=oai:aps.org: PhysRevB.74.041305&metadataPrefix=oai_apsmeta_2, DOI 10.1103/PhysRevB.74.041305De Carvalho, H.B., Galvao Gobato, Y., Brasil, M.J.S.P., Lopez-Richard, V., Marques, G.E., Camps, I., Henini, M., Hill, G., Voltage-controlled hole spin injection in nonmagnetic GaAs AlAs resonant tunneling structures (2006) Physical Review B - Condensed Matter and Materials Physics, 73 (15), pp. 1-9. , http://oai.aps.org/oai?verb=GetRecord&Identifier=oai:aps.org: PhysRevB.73.155317&metadataPrefix=oai_apsmeta_2, DOI 10.1103/PhysRevB.73.155317, 155317De Carvalho, H.B., Brasil, M.J.S.P., Galvão Gobato, Y., Marques, G.E., Galeti, H.V.A., Henini, M., Hill, G., (2007) Appl. Phys. Lett., 90, p. 62120. , 10.1063/1.2472522Dos Santos, L.F., Galvao Gobato, Y., Marques, G.E., Brasil, M.J.S.P., Henini, M., Airey, R., Light controlled spin polarization in asymmetric n -type resonant tunneling diode (2007) Applied Physics Letters, 91 (7), p. 073520. , DOI 10.1063/1.2772662Dos Santos, L.F., Galvao Gobato, Y., Lopez-Richard, V., Marques, G.E., Brasil, M.J.S.P., Henini, M., Airey, R.J., Polarization resolved luminescence in asymmetric n -type GaAsAlGaAs resonant tunneling diodes (2008) Applied Physics Letters, 92 (14), p. 143505. , DOI 10.1063/1.2908867Galvão Gobato, Y., (2011) Appl. Phys. Lett., 99. , 10.1063/1.3668087 233507Mal'Shukov, A.G., Chu, C.S., (2007) Phys. Rev., 76. , 10.1103/PhysRevB.76.245326 B 245326Murayama, A., Furuta, T., Hyomi, K., Souma, I., Oka, Y., Dagnelund, D., Buyanova, I.A., Chen, W.M., (2007) Phys. 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Lett., 96. , 10.1063/1.3280384 011901Gong, J., Liang, X.X., Ban, S.L., Dynamics of spin-dependent tunneling through a semiconductor double-barrier structure (2007) Journal of Applied Physics, 102 (7), p. 073718. , DOI 10.1063/1.2794378Glazov, M.M., Alekseev, P.S., Odnoblyudov, M.A., Chistyakov, V.M., Tarasenko, S.A., Yassievich, I.N., Spin-dependent resonant tunneling in symmetrical double-barrier structures (2005) Physical Review B - Condensed Matter and Materials Physics, 71 (15), pp. 1-5. , http://oai.aps.org/oai/?verb=ListRecords&metadataPrefix= oai_apsmeta_2&set=journal:PRB:71, DOI 10.1103/PhysRevB.71.155313, 155313Galeti, H.V.A., De Carvalho, H.B., Brasil, M.J.S.P., Galvão Gobato, Y., Lopez-Richard, V., Marques, G.E., Henini, M., Hill, G., (2008) Phys. Rev., 78. , 10.1103/PhysRevB.78.165309 B 165309Van Hoof, C., Goovaerts, E., Borghs, G., (1992) Phys. Rev., 46, p. 6982. , 10.1103/PhysRevB.46.6982 0163-1829 BArora, A., Mandal, A., Chakrabarti, S., Ghosh, S., (2013) J. Appl. 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Effects Of Be Acceptors On The Spin Polarization Of Carriers In P-i-n Resonant Tunneling Diodes
Get PDFIn this paper, we have investigated the effect of Be acceptors on the electroluminescence and the spin polarization in GaAs/AlAs p-i-n resonant tunneling diodes. The quantum well emission comprise two main lines separated by ∼20meV attributed to excitonic and Be-related transitions, which intensities show remarkably abrupt variations at critical voltages, particularly at the electron resonant peak where it shows a high-frequency bistability. The circular-polarization degree of the quantum-well electroluminescence also shows strong and abrupt variations at the critical bias voltages and it attains relatively large values (of ∼-75% at 15T). These effects may be explored to design novel devices for spintronic applications such as a high-frequency spin-oscillators. © 2014 AIP Publishing LLC.1165Fabian, J., Matos-Abiague, A., Ertler, C., Stano, P., Zutic, I., (2007) Acta Phys. Slovaca, 57, p. 565. , 10.2478/v10155-010-0086-8Zutic, I., Fabian, J., Sarma, S.D., (2004) Rev. Mod. Phys., 76, p. 323. , 10.1103/RevModPhys.76.323Glazov, M.M., Alekseev, P.S., Adnoblyudov, O.M., Chistyakov, V.M., Tarasenko, S.A., Yassievich, I.N., (2005) Phys. Rev. B, 71, p. 155313. , 10.1103/PhysRevB.71.155313Slobodskyy, A., Gould, C., Slobodskyy, T., Becker, C.R., Schmidt, G., Molenkamp, L.W., (2003) Phys. Rev. Lett., 90, p. 246601. , 10.1103/PhysRevLett.90.246601Carvalho, H.B.D., Brasil, M.J.S.P., Lopez-Richard, V., Gobato, Y.G., Marques, G.E., Camps, I., Dacal, L.C.O., Hill, G., (2006) Phys. Rev. B, 74, p. 041305. , 10.1103/PhysRevB.74.041305Carvalho, H.B.D., Gobato, Y.G., Brasil, M.J.S.P., Lopez-Richard, V., Marques, G.E., Camps, I., Henini, M., Hill, G., (2006) Phys. Rev. B, 73, p. 155317. , 10.1103/PhysRevB.73.155317Carvalho, H.B.D., Brasil, M.J.S.P., Gobato, Y.G., Marques, G.E., Galeti, H.V.A., Henini, M., Hill, G., (2007) Appl. Phys. Lett., 90, p. 62120. , 10.1063/1.2472522Santos, L.F.D., Gobato, Y.G., Marques, G.E., Brasil, M.J.S.P., Henini, M., Airey, R., (2007) Appl. Phys. Lett., 91, p. 073520. , 10.1063/1.2772662Santos, L.F.D., Gobato, Y.G., Marques, G.E., Brasil, M.J.S.P., Henini, M., Airey, R., (2008) Appl. Phys. Lett., 92, p. 143505. , 10.1063/1.2908867Ruth, M., Gould, C., Molenkamp, L.W., (2011) Phys. Rev. B, 83, p. 155408. , 10.1103/PhysRevB.83.155408Ohya, S., Takata, K., Tanaka, M., (2011) Nat. Phys., 7, p. 342. , 10.1038/nphys1905Gobato, Y.G., Galeti, H.V.A., Santos, L.F.D., López-Richard, V., Cesar, D.F., Marques, G.E., Brasil, M.J.S.P., Airey, R.J., (2011) Appl. Phys. Lett., 99, p. 233507. , 10.1063/1.3668087Gordo, V.O., Herval, L.K.S., Galeti, H.V.A., Gobato, Y.G., Brasil, M.J.S.P., Marques, G.E., Henini, M., Airey, R.J., (2012) Nanoscale Res. Lett., 7, p. 592. , 10.1186/1556-276X-7-592Galeti, H.V.A., Bezerra, A.T., Gobato, Y.G., Brasil, M.J.S.P., Taylor, D., Henini, M., (2013) J. Phys. D, 46, p. 505313. , 10.1088/0022-3727/46/50/505313Galeti, H.V.A., Brasil, M.J.S.P., Gobato, Y.G., Henini, M., (2014) J. Phys. 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M-regularity and the fourier-mukai transform
No full textThis is a survey of M-regularity and its applications, expanding on lectures given by the second author at the Seattle conference, in August 2005, and at the Luminy workshop "Geometrie Algebrique Complexe", in October 2005
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis 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
Speculu[m] exemploru[m] ex diuersis libris in vnu[m] laboriose collectu[m].
No full textEerste blad (blanco) ontbreektThe author is probably Johannes Busch (CIBN)Titel uit incipit. Drukker en datum uit colofonBMC: Catalogue of books printed in the XVth century now in the British Museum I 226bGesamtkatalog der Wiegendrucke ; M42951Machiels, J. Catalogus van de boeken gedrukt vóór 1600 ; S 488Polain, M.-L. Catalogue des livres imprimé au 15e siècle ... ; 3574Europeana-GoogleBook
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