Relevant bibliographies by topics / Pumping

Academic literature on the topic 'Pumping'

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Published: 4 June 2021
Last updated: 14 March 2023

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Journal articles on the topic "Pumping"

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Ageev, Aleksandr I. "Pumping Energy." Economic Strategies 144, no. 5 (October 20, 2021): 5. http://dx.doi.org/10.33917/es-5.179.2021.5.

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Tamaishi, R. "Pumping Improver." Concrete Journal 57, no. 1 (2019): 29–31. http://dx.doi.org/10.3151/coj.57.1_29.

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Egelman, Edward H. "Pumping DNA." Nature 409, no. 6820 (February 2001): 573–75. http://dx.doi.org/10.1038/35054652.

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Ball, Philip. "Pumping muscles." Nature Materials 16, no. 10 (October 2017): 974. http://dx.doi.org/10.1038/nmat5001.

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Miura, Grant. "Pumping iron." Nature Chemical Biology 13, no. 7 (June 20, 2017): 693. http://dx.doi.org/10.1038/nchembio.2423.

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Sinha, Gunjan. "Pumping Coal." Scientific American 294, no. 5 (May 2006): 20–22. http://dx.doi.org/10.1038/scientificamerican0506-20.

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Goldemberg, José. "Pumping Renewables." Nature 456, S1 (October 2008): 26–27. http://dx.doi.org/10.1038/twas08.26a.

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Weiss, Peter. "Pumping Carbon." Science News 165, no. 5 (January 31, 2004): 69. http://dx.doi.org/10.2307/4014994.

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Clarke, Ronald J., and Xiaochen Fan. "Pumping ions." Clinical and Experimental Pharmacology and Physiology 38, no. 11 (October 20, 2011): 726–33. http://dx.doi.org/10.1111/j.1440-1681.2011.05590.x.

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Gerdes, Kenn, and Szabolcs Semsey. "Pumping persisters." Nature 534, no. 7605 (May 25, 2016): 41–42. http://dx.doi.org/10.1038/nature18442.

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Dissertations / Theses on the topic "Pumping"

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Blumenthal, M. D. "Gigahertz quantised charge pumping." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.596732.

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The aim is to link the unit ampere to the elementary charge e, a true invariant of nature. The high level of control over single electrons needed to realise such a quantum current standard has led to much interest in devices employing Coulomb blockade of tunnelling[2]. The time taken for an electron to tunnel through the barriers defining the dot, limits the output current of such devices to several pA[3,4]. A substantial increase in the current would allow these devices to be of a real practical use as a standard. This thesis explores another pumping mechanism for single charges which does not rely on Coulomb blockade of tunnelling. Single electrons are transported through a periodically formed decoupled quantum dot (QD). The electrons transported can be regarded as particles “surfing” on the time dependent potential of the well generated by the three barriers, rather than tunnelling through the barriers as waves. Two phase-shifted sinusoidal signals applied directly to the metallic finger gates on an etched GaAs/AlGaAs quantum wire, pump the electrons at frequencies of up to f = 3.4 GHz, corresponding to a current level of 0.54 nA. This approach represents an alternative path not only in the realization of a high current high accuracy quantum standard for electrical current but also in single photon production and electron spin based quantum computing.
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Rasmusson, Kristina, and Maria Rasmusson. "NAPL spill modeling and simulation of pumping remediation : NAPL modellering och simulering av pumpning." Thesis, Uppsala University, LUVAL, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-111958.

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This Master Thesis presents TMVOC simulations of a NAPL-spill (non-aqueous phase liquid) and following pumping remediation. TMVOC is a simulation program for three-phase non-isothermal multicomponent flow in saturated-unsaturated heterogeneous media. The models presented are based on an actual remediation project. The aim of the thesis was to study if the historical development of the NAPL-spill could be simulated and how long time the pumping remediation would take. A 3D-model and a radially symmetric cylindrical model were created.

A large effort of the work done was in taking the complex TMVOC model in use and modifying it for the problem at hand. Therefore, the numerical results of the simulations should be considered as preliminary and as forming basis for future studies.

The results from the spill simulation and historical pumping simulation indicated that the spill volume could be less than the estimated 1400 m3, perhaps around 700 m3, assuming a leakage time of 30 years.

The historical pumping simulation of a 700 m3 diesel spill showed good agreement with measured values for some wells, but overestimated the recovery in other wells. The overestimation could be due to the fact that the 3D-model did not take seasonal changes in the groundwater level into consideration. Also, the model did not account for any heterogeneity or compartmentalization in soil material properties that could explain the differences between the wells. 

Assuming the same spill of 700 m3, future pumping was simulated. The results from these simulations indicated the remediation time to be long due to fast decreasing mobility of the NAPL phase. The NAPL flow rate to the wells was halved in a couple of years. Much of the NAPL was distributed over a large area at near residual saturation with the highest NAPL saturation found at the opposite side of the pumping wells in the model.

 

Future simulation studies should address the effect of discretization as well as the effect of uncertainties in material properties e.g. conductivity, residual NAPL saturation and soil heterogeneity.

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Nikhar, Hemant G. "Flow assurance and multiphase pumping." [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1180.

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Liu, Guang. "A photovoltaic-powered pumping system." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/30592.

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This thesis studies the optimal design for a photovoltaic-powered medium-head (30 meters) water pumping system, with the emphasis on improving the efficiency and reducing the maintenance requirements of the electrical subsystem. The reduction of maintenance requirements is realized by replacing the conventional brush-type permanent magnet dc motor with a brushless dc (BLDC) motor. Different BLDC motor control techniques such as position-sensorless operation, sinusoidal and trapezoidal excitations are investigated. The improvement in efficiency is achieved by maximizing the output power from the photovoltaic array and by minimizing the losses in various parts of the electrical sub-system. A microprocessor-based double-loop maximum power tracking scheme is developed for maximization of the photovoltaic array output power. Over 99% utilization factor is achieved for a typical clear day regardless of the season of the year. The system losses are minimized mainly by performing loss analysis and selecting most suitable switching topologies and switching components. Experimental results show that the combined converter-motor efficiency is comparable to those of high-efficiency brush-type dc motor systems.
Applied Science, Faculty of
Electrical and Computer Engineering, Department of
Graduate
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Secrieru, Egor. "Pumping behaviour of modern concretes –." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-234912.

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Pumping is the most efficient transportation and placing method for concrete. Despite the immense progress in the field of concrete technology in the last years, so far there are still neither official regulations nor verified theoretical foundations to be used for the assessment and accurate prediction pumping behaviour of ordinary and high performance concretes. This thesis aims at purposefully investigating pumping of modern concretes and bridging the existing knowledge gap. The main achievement of the present research is the development and verification of a sitecompliant and scientifically based methodology for characterisation and prediction of fresh concrete pumping behaviour. The research focus is set on the importance of the forming lubricating layer (LL) during pumping. Within an extended experimental program, the properties of the LL are captured and quantified. They determine the reduction of friction at the pipe wallconcrete interface and thereby govern the concrete flow. It is proven that the composition and the rheological properties of the forming LL exert an enormous impact on pumping since most of the induced shear stress by pumping pressure is concentrated in this layer. In a further step, the flow pattern of concrete is analytically and numerically determined. The concrete exhibits various principal flow types which are already defined at low flow rates: plug flow in case of strainhardening cementbased composite (SHCC), partial concrete bulk shear in ordinary concretes and pronounced bulk shear for selfcompacting concrete (SCC). The results from the fullscale pumping campaign are confronted with the existing pressure performance nomogram on the determination of pumping parameters. The nomogram’s prediction capacity is extended and verified for highly flowable concretes by replacing the slump and flow table results with the viscosity parameter of the LL. Furthermore, the challenges during pumping of concrete, inter alia, priming of the pipeline, blockage formation and final cleaning, are exemplified, and recommendations for the practitioners are provided. Finally, the transfer of the developed scientifically based and ready to use methodology on site is strongly advocated as a part of the future in situ rheology monitoring concept towards envisaged full automation of concrete production and casting processes
Das Pumpen stellt die effektivste Methode für das Fördern und Einbringen von Frischbeton auf der Baustelle dar. Trotz der in den letzten Jahren erreichten deutlichen Fortschritte auf betontechnologischem Gebiet existieren für die Beurteilung der Pumpbarkeit von Beton bisher weder offiziell gültige Vorschriften noch abgesicherte theoretische Grundlagen, die eine zielsichere Vorhersage des Pumpverhaltens von Normal- als auch Hochleistungsbetonen ermöglichen. Die vorliegende Arbeit schließt entsprechende Wissenslücken und befasst sich gezielt mit dem Pumpen moderner Betone. Grundlegenden Erkenntnisgewinn stellt die Entwicklung einer wissenschaftlich fundierten, baustellengerechten Prüfmethodik zur Charakterisierung und Vorhersage des Pumpverhaltens von Frischbeton dar. Der Untersuchungsfokus richtet sich auf die Wirkung der sich beim Pumpvorgang ausbildenden Gleitschicht. Ein umfangreiches Untersuchungsprogramm gestattet die Erfassung und Quantifizierung der Eigenschaften dieser Schicht. Sie bestimmen infolge deutlicher Reduzierung der Reibung an der Grenzfläche zwischen Rohrwandung und Beton die Betonströmung entscheidend. Bewiesen wird, dass Betonzusammensetzung und rheologische Eigenschaften der Gleitschicht maßgebende Auswirkungen auf den Pumpvorgang haben, da sich die pumpdruckinduzierte Scherspannung in dieser Schicht konzentriert. Weiterhin erfolgt sowohl eine analytische als auch numerische Charakterisierung der Betonströmung im Rohr. Nachgewiesen wird, dass sich beim Pumpvorgang betonspezifisch unterschiedliche Strömungsarten einstellen, die bereits bei niedrigen Durchflussmengen definiert sind: Pfropfenströmung in hochduktilen Betonen, partielle Scherung des Kernbetons in Normalbetonen und signifikante Scherung in selbstverdichtenden Betonen. Aus großtechnisch durchgeführten Pumpversuchen gewonnene Ergebnisse werden dem derzeit vorhandenen, verbesserungsbedürftigen Betondruck-Leistungs-Nomogramm zur Einstellung von Parametern an der Betonpumpe gegenübergestellt. Die Vorhersagekapazität des Nomogramms kann durch den Ersatz der Ausbreit- bzw. Setzfließmaßangaben mit Viskositätsangaben der Gleitschicht erweitert und verifiziert werden. Des Weiteren werden baustellenbezogene Herausforderungen im Gesamtprozess des Betonpumpvorgangs, u. a. Vorbereitung der Rohrleitung vor dem Pumpen, Auftreten von Stopfern und Endreinigung exemplarisch dargestellt sowie Empfehlungen für die Praktiker erarbeitet. Schließlich wird der Transfer der in dieser Arbeit entwickelten wissenschaftlich basierten und anwendungsbereiten Methodik als Teil des zukünftigen Konzeptes für die in-situ Rheologie-Überwachung hinsichtlich einer angestrebten vollständigen Automatisierung von Fertigungs- und Einbringprozessen von Beton mit Nachdruck empfohlen
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McPherson, Amy. "A Passive Pumping Microfluidic Coulter Counter." NCSU, 2009. http://www.lib.ncsu.edu/theses/available/etd-11032009-082653/.

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As a result of the growing costs of healthcare technology, there is an increasing need for medical diagnostic tools that provide accurate information in a portable, low-cost platform. A microfluidic device using on-chip passive pumping was characterized for use as a particle counter. A detection circuit interfaced with electrodes in the microfluidic chip to provide an excitation signal and to detect electrical activity. Flow occurred due to a Young-Laplace pressure gradient between a 1.2 mm diameter inlet and a 4 mm diameter reservoir when 0.5 μL fluid droplets were applied to the inlet using a micropipette. Polystyrene particles were enumerated using the resistive pulse technique, in which particles can be detected based on the difference in particle conductivity from that of the surrounding medium. Particles counted using the passive flow method demonstrated mean particle counts that were within 13% of those detected using a syringe pump, while all pumping methods displayed particle counts that were within 16% of the count obtained using a hemacytometer. Three different sample loading patterns were compared; the methods varied only in the order of sample and wash fluid administration. Zero, one, or two wash droplets were loaded after the first of two sample droplets. No statistical difference was detected in the mean particle counts for all loading patterns using the passive method (p > 0.05). This passive pumping method is easily implemented using only a micropipette, thus reducing the cost and complexity of particle enumeration, and the method can be implemented in a point-of-care (POC) device for a highly portable, cost-effective particle counter. These methods obtained particle counts that were also consistent with syringe pumping (p > 0.05).
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Liang, Man. "Na/K ATPase : signaling versus pumping." Toledo, Ohio : University of Toledo, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=mco1173803261.

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Thesis (Ph.D.)--University of Toledo, 2006.
"In partial fulfillment of the requirements for the degree of Doctor of Philosophy in Biomedical Sciences." Major advisor: Zi-Jian Xie. Includes abstract. Document formatted into pages: iii, 156 p. Title from title page of PDF document. Bibliography: pages 64-67, 97-100, 116-117, 125-155.
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Pinilla, A. E. "Wind-powered pumping systems for Columbia." Thesis, University of Reading, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.353477.

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Dvorak, Gary John. "Economic analysis of irrigation pumping plants." Thesis, Kansas State University, 1985. http://hdl.handle.net/2097/9834.

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Al-Nahwi, Ammar Adnan. "Modeling of industrial pumping system dynamics." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/38116.

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Books on the topic "Pumping"

1

Joanne, Drinan, ed. Pumping. Lancaster, Pa: Technomic Publishing, 2001.

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Wujec, Tom. Pumping ions. Toronto: Doubleday Canada, 1988.

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Michael, Neveux, and Prokop David, eds. Pumping iron. Leicester: Magna Books, 1994.

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Christopher, Dickenson T., ed. Pumping manual. 9th ed. Oxford: Elsevier Advanced Technology, 1995.

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Arasmith, Skeet. Pumps & pumping. Albany, Or: ACR Publications,Inc., 2011.

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M, Jones Garr, ed. Pumping station design. 3rd ed. Amsterdam: Butterworth-Heinemann, 2006.

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Capture pumping technology. 2nd ed. Amsterdam: Elsevier, 2001.

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M, Jones Garr, Bosserman Bayard E, Sanks Robert L, and Tchobanoglous George, eds. Pumping station design. 3rd ed. Amsterdam: Elsevier/Academic Press, 2008.

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Grose, V. Water pumping stations. Oxford: Oxford Brookes University, 1994.

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L, Sanks Robert, ed. Pumping station design. Boston: Butterworths, 1989.

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Book chapters on the topic "Pumping"

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Elitzur, Moshe. "Pumping." In Astrophysics and Space Science Library, 193–215. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2394-5_7.

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Weik, Martin H. "pumping." In Computer Science and Communications Dictionary, 1378. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_15131.

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Barlow, Roy, Bernard McNelis, and Anthony Derrick. "Prelims - Solar Pumping." In Solar Pumping, i—viii. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1993. http://dx.doi.org/10.3362/9781780445984.000.

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Barlow, Roy, Bernard McNelis, and Anthony Derrick. "1. Introduction; When to Use Solar Pumps." In Solar Pumping, 1–17. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1993. http://dx.doi.org/10.3362/9781780445984.001.

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Barlow, Roy, Bernard McNelis, and Anthony Derrick. "2. Solar Pumping Technology." In Solar Pumping, 18–37. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1993. http://dx.doi.org/10.3362/9781780445984.002.

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Barlow, Roy, Bernard McNelis, and Anthony Derrick. "3. Available Equipment." In Solar Pumping, 38–49. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1993. http://dx.doi.org/10.3362/9781780445984.003.

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Barlow, Roy, Bernard McNelis, and Anthony Derrick. "4. General Field Experience." In Solar Pumping, 50–61. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1993. http://dx.doi.org/10.3362/9781780445984.004.

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Barlow, Roy, Bernard McNelis, and Anthony Derrick. "5. Site and System Evaluation for Village Water Supply." In Solar Pumping, 62–78. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1993. http://dx.doi.org/10.3362/9781780445984.005.

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Barlow, Roy, Bernard McNelis, and Anthony Derrick. "6. Site and System Evaluation for Irrigation Pumping." In Solar Pumping, 79–90. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1993. http://dx.doi.org/10.3362/9781780445984.006.

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Barlow, Roy, Bernard McNelis, and Anthony Derrick. "7. Practical Cost Appraisal." In Solar Pumping, 91–106. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1993. http://dx.doi.org/10.3362/9781780445984.007.

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Conference papers on the topic "Pumping"

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Peyrot, Donald A., Jonathan Duquette, Roger A. Lessard, and Rene Roy. "Radioluminescence pumping." In Photonics North, edited by John C. Armitage, Roger A. Lessard, and George A. Lampropoulos. SPIE, 2004. http://dx.doi.org/10.1117/12.569056.

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Tadjfar, M., T. Yamaguchi, and R. Himeno. "Peristaltic Pumping." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-2124.

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Abstract Peristaltic pumping in a cylindrical tube is simulated. The unsteady, three-dimensional, incompressible Navier-Stokes equations are solved numerically. A flow solver written for parallel architecture and capable of dealing with moving boundaries and moving grids is used. The solver uses a second-order in time and third-order upwind finite volume method for solving time-accurate incompressible flows utilizing pseudo-compressibility technique. In this study, the flow of an axisymmetric “Wine-glass” shaped, single, peristaltic wave is analyzed. The wall wave, quickly, establishes a pressure wave in the flow which pumps fluid in the tube as it moves down the tube. The pressure wave, established by the contracting geometric wall wave, grows and diffuses into the upstream and downstream direction in time due to the action of viscosity.
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Jeong, Seong-il. "An innovative pumping technology—electrohydrodynamic pumping through conduction phenomenon." In Space technology and applications international forum - 2001. AIP, 2001. http://dx.doi.org/10.1063/1.1357945.

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von Hollen, D. G., and S. K. Newton. "Pumping Unit Optimization." In SPE Latin America/Caribbean Petroleum Engineering Conference. Society of Petroleum Engineers, 1996. http://dx.doi.org/10.2118/36081-ms.

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Kobayashi, Naoki. "Pumping by Typing." In 2013 Twenty-Eighth Annual IEEE/ACM Symposium on Logic in Computer Science (LICS 2013). IEEE, 2013. http://dx.doi.org/10.1109/lics.2013.46.

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Stanislav, J. "Pumping Well Testing." In Annual Technical Meeting. Petroleum Society of Canada, 1990. http://dx.doi.org/10.2118/90-51.

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Tianshi, Liu, and Meng Yalei. "Improved Ant Colony Optimization for Interval Pumping of Pumping Unit." In 2014 Fifth International Conference on Intelligent Systems Design and Engineering Applications (ISDEA). IEEE, 2014. http://dx.doi.org/10.1109/isdea.2014.130.

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Zhu, Jun, and Rui Fen Zhou. "Research on Transient Mechanics Behavior of Pumping Rod in Pumping System." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57049.

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More than 75% pumping rod well accounted is artificial lifting production well. With the development of the oilfield, eccentric wearing of rod is becoming the main problem. Numerous factors influencing eccentric wearing of rod heighten the difficulties in the prediction and comprehensive analysis. In the past, it is emphasized on the avoiding and curing measures application, and short of system analysis in respect of flectional reason, flectional conformation and influencing factors. In order to reduce eccentric wearing of rod and show the flectional conformation, the transient mechanics behavior research of pumping rod should be researched deeply. The pumping rod is the extra slender flexible rod. Its working state back and forth moving in the process of the pumping oil, the mechanics behavior is very complex including geometric nonlinear, contact nonlinear and dynamics state. The kinematics equations of pumping rod are deduced adopting the updating lagrange based on the finite deformed theory and the contact constraint equation is confirmed by contact theory. The discrete form of equations can be acquired by using the finite element method. The contact dynamics equation can be obtained by coordinates transformation and elements integration. It is shown the flectional modality and the contact state with the load incremental method and Newmark method utilized in the equation solved. Basing on the research, the swab parameters can be optimized and the centralizer can be rational installed to guarantee normal work and extend the inspecting pump cycle.
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Gong, Hongliang, Yanan Sun, Shujin Zhang, Xing Qi, Guochen Shi, Chunlong Sun, Guoqing Wang, et al. "Research of Non-Stop Intermittent Pumping Production for Beam Pumping Units." In SPE Asia Pacific Oil and Gas Conference and Exhibition. Society of Petroleum Engineers, 2018. http://dx.doi.org/10.2118/191890-ms.

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Johnsonbaugh, Richard, and David P. Miller. "Converses of pumping lemmas." In the twenty-first SIGCSE technical symposium. New York, New York, USA: ACM Press, 1990. http://dx.doi.org/10.1145/323410.319073.

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Reports on the topic "Pumping"

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Pound, C. R. Pressurized Vessel Slurry Pumping. Office of Scientific and Technical Information (OSTI), September 2001. http://dx.doi.org/10.2172/786667.

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Maloney, W. HSB 84A pumping test. Office of Scientific and Technical Information (OSTI), March 2000. http://dx.doi.org/10.2172/752143.

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KOCH, M. R. Report on New Pumping System Software on Pumping Instrumentation and Control Skids. Office of Scientific and Technical Information (OSTI), January 2001. http://dx.doi.org/10.2172/805945.

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HORNER, T. M. Report on New Pumping System Software on Pumping Instrumentation and Control Skids. Office of Scientific and Technical Information (OSTI), April 2001. http://dx.doi.org/10.2172/806898.

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Raftery, M. Daniel. Optical pumping and xenon NMR. Office of Scientific and Technical Information (OSTI), November 1991. http://dx.doi.org/10.2172/10138720.

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Thomas, M. Water Pumping: The Solar Alternative. Office of Scientific and Technical Information (OSTI), April 1987. http://dx.doi.org/10.2172/16241.

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DEFORD, D. K. Saltwell pumping systems R.A.M. analysis. Office of Scientific and Technical Information (OSTI), October 1999. http://dx.doi.org/10.2172/798132.

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Raftery, M. D. Optical pumping and xenon NMR. Office of Scientific and Technical Information (OSTI), November 1991. http://dx.doi.org/10.2172/6653527.

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West, C. D. Stirling Engines and Irrigation Pumping. Office of Scientific and Technical Information (OSTI), January 1987. http://dx.doi.org/10.2172/814583.

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Fitzpatrick, J. B. CC Cryostat Vacuum Pumping Efficiency. Office of Scientific and Technical Information (OSTI), October 1987. http://dx.doi.org/10.2172/1030703.

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