Relevant bibliographies by topics / High efficiency variable speed

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'High efficiency variable speed'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "High efficiency variable speed"

1

MORIKAWA, Koji, Makoto KANEKO, Hiroshi OIWA, and Yasuo MORIYOSHI. "High Compression Ratio High Efficiency Gasoline Engine with Variable Speed Piston-crank Mechanism." Transactions of the Japan Society of Mechanical Engineers Series B 73, no. 735 (2007): 2176–82. http://dx.doi.org/10.1299/kikaib.73.2176.

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De Capua, C., and C. Landi. "Measurement station performance optimization for testing of high efficiency variable speed drives." IEEE Transactions on Instrumentation and Measurement 48, no. 6 (1999): 1149–54. http://dx.doi.org/10.1109/19.816129.

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Shen, Hai Kuo, Meng Nie, Shao Dan Zhi, and Jin Bo. "Study on High Dynamic Variable Speed Hydraulic Control System." Applied Mechanics and Materials 271-272 (December 2012): 625–31. http://dx.doi.org/10.4028/www.scientific.net/amm.271-272.625.

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A new type of high dynamic variable speed hydraulic control system is developed in this paper. In this system, a fixed displacement hydraulic pump is driven by an electrical motor which is controlled by a frequency inverter, so the discharge of the pump can be modified by changing the speed of the motor. A proportional directional valve is used to acquire higher low-speed control precision and faster dynamic response while the system is decelerating. In order to improve the dynamic response while the system is accelerating, an energy regulation device is employed in the system. The digital sim
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Kshirsagar, Parag, and R. Krishnan. "High-Efficiency Current Excitation Strategy for Variable-Speed Nonsinusoidal Back-EMF PMSM Machines." IEEE Transactions on Industry Applications 48, no. 6 (2012): 1875–89. http://dx.doi.org/10.1109/tia.2012.2225814.

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Hasan, Md Ehtesham, K. Dasgupta, and Sanjoy Ghoshal. "Comparison of the efficiency of the high speed low torque hydrostatic drives using bent axis motor: An experimental study." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 231, no. 4 (2015): 650–66. http://dx.doi.org/10.1177/0954408915622413.

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This article is aimed at analysing the steady-state performance of four hydrostatic drives and compares their overall efficiency. The speed of the hydrostatic drives is controlled by speed controlled vane pump, variable displacement flow compensated pump, variable displacement pressure compensated pump and proportional direction controlled valve. Bondgraph simulation technique is used to model the hydrostatic drive. The relationships of the loss coefficients with the state variables obtained from the model are identified through experimental investigation. Using them, at different torque level
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Xu, L. Y., Zhi Li Zhou, M. Z. Zhang, and Y. Niu. "Multi-Range Hydro-Mechanical Continuously Variable Transmission of Tractor." Materials Science Forum 628-629 (August 2009): 167–72. http://dx.doi.org/10.4028/www.scientific.net/msf.628-629.167.

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In this paper, to improve the transmission ratio discontinuity problem during the gear shift process in the multi-gear fixed step ratio transmission of the tractors, a hydro-mechanical continuously variable transmission (HMCVT) for tractors is developed, which is composed of a single planetary gear differential train, a hydraulic transmission system consisted of the variable displacement pump (PV) and the fixed displacement motor (MF) and a multi-gear fixed step ratio transmission. Its stepless-speed-regulating characteristic, smooth range shifting condition and transmission efficiency are ana
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D'Août, K., and P. Aerts. "Kinematics and efficiency of steady swimming in adult axolotls (Ambystoma mexicanum)." Journal of Experimental Biology 200, no. 13 (1997): 1863–71. http://dx.doi.org/10.1242/jeb.200.13.1863.

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The kinematics of steady swimming at a wide range of velocities was analysed using high-speed video recordings (500 frames s-1) of eight individuals of Ambystoma mexicanum swimming through a tunnel containing stationary water. Animals in the observed size range (0.135­0.238 m total body length) prefer to swim at similar absolute speeds, irrespective of their body size. The swimming mechanism is of the anguilliform type. The measured kinematic variables ­ the speed, length, frequency and amplitude (along the entire body) of the propulsive wave ­ are more similar to those
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Zagar, Philipp, Helmut Kogler, Rudolf Scheidl, and Bernd Winkler. "Hydraulic Switching Control Supplementing Speed Variable Hydraulic Drives." Actuators 9, no. 4 (2020): 129. http://dx.doi.org/10.3390/act9040129.

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Primary control of linear motion by variable speed electric motors driving a hydraulic cylinder via a constant displacement pump is an established and successful concept with a frequent use in industry. One problem arises when low or zero motion speed has to be realized under high pump pressure conditions. Such load scenarios occur frequently in certain pressing processes, e.g., for sintering or veneering. Most pumps have a lower speed limit, below which critical tribological conditions occur which impair lifespan and efficiency. In addition, pump speed control and pump fluctuation suffer from
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Lin, Dakai, Duan Huang, Peng Huang, Jinye Peng, and Guihua Zeng. "High performance reconciliation for continuous-variable quantum key distribution with LDPC code." International Journal of Quantum Information 13, no. 02 (2015): 1550010. http://dx.doi.org/10.1142/s0219749915500100.

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Reconciliation is a significant procedure in a continuous-variable quantum key distribution (CV-QKD) system. It is employed to extract secure secret key from the resulted string through quantum channel between two users. However, the efficiency and the speed of previous reconciliation algorithms are low. These problems limit the secure communication distance and the secure key rate of CV-QKD systems. In this paper, we proposed a high-speed reconciliation algorithm through employing a well-structured decoding scheme based on low density parity-check (LDPC) code. The complexity of the proposed a
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Bai, Yuxing, Fanyu Kong, Fei Zhao, Jiaqiong Wang, Bin Xia, and Qianlan Hu. "Experiments and Numerical Simulation of Performances and Internal Flow for High-Speed Rescue Pump with Variable Speeds." Mathematical Problems in Engineering 2018 (July 2, 2018): 1–18. http://dx.doi.org/10.1155/2018/9168694.

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The model pump is a high-speed, high-power pump designed to achieve rapid mine flooding rescue. This study conducted experiments to investigate pump performance curves, including head, efficiency, and power for the following six different rotation speeds: 3000, 3600, 4200, 4800, 5400, and 6000 rpm. Then, the numerical simulation method based on computational fluid dynamics commercial code Ansys was used to present the internal flow of the pump for the six different rotation speeds through steady and unsteady analyses. Results show that the numerical results agree well with experimental data. T
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Dissertations / Theses on the topic "High efficiency variable speed"

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Kim, Jaehyuck. "Variable-Speed Switched Reluctance Motor Drives for Low-Cost, High-Volume Applications." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/77320.

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Demand for energy-saving variable speed drives in low-cost, high-volume appliances has increased due to energy and environmental concerns and hence the need to comply with new regulations. Switched reluctance motor (SRMs) have been considered by many as attractive alternatives for brush commutated motors or permanent magnet brushless dc motors (PMBDCMs) in such cost-sensitive applications. The SRMs' unique features such as simple and fault-tolerant structure and unidirectional flow of their phase currents endow them with the possibility of various configurations on both machine and converter t
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Lee, Cheewoo. "Analysis and Design of a Novel E-Core Common-Pole Switched Reluctance Machine." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/77319.

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In this dissertation, a novel two-phase switched reluctance machine (SRM) with a stator comprised of E-core structure having minimum stator core iron is presented for low-cost high-performance applications. In addition, three new magnetic structures for the E-core SRM comprising two segmented stator cores or a monolithic stator core are proposed for good manufacturability, mechanically robustness, ease of assembly, and electromagnetic performance improvement. Each E-core stator in the segmented structure has three poles with two small poles at the ends having windings and a large center pole c
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Saad, S. "Efficiency of mining electrical variable speed drive systems." Thesis, University of Nottingham, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381103.

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Richmond, Colin. "Development of high efficiency high speed permanent magnet generator." Master's thesis, Faculty of Engineering and the Built Environment, 2019. http://hdl.handle.net/11427/30972.

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Renewable energy technology is steadily gaining importance in the energy market because of the limited nature of fossil fuels, as well as the political pressures to reduce carbon emissions. To ensure sustainable development, adequate and affordable energy should be made available to satisfy the demand of electric energy. The High Speed Permanent Magnet (HSPM) generator is designed and developed and is expected to deliver 10 kW output power as well as to achieve a speed of 30000 RPM, however, to achieve a compact and efficient design with lower excitation losses, magnetizing currents and rotor
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Johnson, Andrew P. (Andrew Peter). "High speed linear induction motor efficiency optimization." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/10945/11052.

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CIVINS<br>CIVINS<br>One of the reasons linear motors, a technology nearly a century old, have not been adopted for a large number of linear motion applications is that they have historically had poor efficiencies. This has restricted the progress of linear motor development. The concept of a linear motor as a rotary motor cut and laid out flat with a conventional rotary motor control scheme as a design basis may not be the best way to design and control a high-speed linear motor. End effects and other geometry subtleties of a linear motor make it unique, and a means of optimizing efficiency wi
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Magill, Robert Joseph. "Efficiency and loss evaluation of induction motors for variable speed drives." Thesis, University of Nottingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367160.

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Torrey, David Allan. "Optimal-efficiency constant-speed control of nonlinear variable reluctance motor drives." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/14713.

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Douglas, David N. "Development of a high speed, high efficiency LA-ICP-MS interface." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/12164.

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Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS) is now a well established analytical technique used to sample solid materials and determine their elemental composition. Two areas that are becoming increasingly important, and for which LA-ICP-MS is a key tool, are bio-imaging and the analysis of micro-particulates. However, current instrumental designs limit the practicality of the technique for these applications. This study investigates the development of a high speed, high efficiency LA-ICP-MS interface through modelling of the flow dynamics of a newly designed laser
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Willkomm, Johannes, Matthias Wahler, and Jürgen Weber. "Potentials of Speed and Displacement Variable Pumps in Hydraulic Applications." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-200237.

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Speed and displacement variable pumps offer a degree of freedom for process control. As a certain operation point can be supplied by different combinations of drive speed and pump displacement intelligent control strategies can address major issues like energy efficiency, process dynamics and noise level in industrial applications. This paper will provide an overview of recent research and development activities to evaluate the named potentials.
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Zavari, Rod. "A high-speed CMOS A/D converter employing variable nonuniform quantization." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0024/MQ34143.pdf.

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Books on the topic "High efficiency variable speed"

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Zavari, Rod. A high-speed CMOS A/D converter employing variable nonuniform quantization. National Library of Canada, 1996.

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Walt, Mores, and Elliotte Hundley M, eds. Building high performance government through Lean Six Sigma: A leader's guide to creating speed, agility, and efficiency. McGraw-Hill, 2011.

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Jakushokas, Renatas. Power distribution networks with on-chip decoupling capacitors. 2nd ed. Springer, 2011.

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Federighi, Paolo, and Francesca Torlone, eds. Low skilled take their qualifications "one step up". Firenze University Press, 2010. http://dx.doi.org/10.36253/978-88-6453-179-3.

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Adult learning is recognized as a key component of lifelong learning and Member States are required to remove barriers to participation, to increase overall quality and efficiency in adult learning, to speed up the process of validation and recognition and to ensure sufficient investment in and monitoring of the field (European Commission, 2006, 2007; European Parliament, 2008; European Council, 2008). It is unanimously recognized that adult learning can play a pivotal role in meeting the goals of the Lisbon Strategy, by fostering social cohesion, providing citizens with the skills required to
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United States. National Aeronautics and Space Administration., ed. Wind-tunnel results of advanced high-speed propellers at takeoff, climb, and landing Mach numbers. National Aeronautics and Space Administration, 1985.

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Wind-tunnel results of advanced high-speed propellers at takeoff, climb, and landing Mach numbers. National Aeronautics and Space Administration, 1985.

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United States. National Aeronautics and Space Administration., ed. Wind-tunnel results of advanced high-speed propellers at takeoff, climb, and landing Mach numbers. National Aeronautics and Space Administration, 1985.

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(Editor), Margaret M. Bynum, and Debra Giffen (Editor), eds. Speed Learning: High Efficiency Reading Book 1 (Speed Learning). Learn, 1997.

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Speed Learning High Efficiency Reading Book 2. Learn Incorporated, 1989.

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Oregon State University. Motor Systems Resource Facility. and Northwest Energy Efficiency Alliance, eds. Laboratory testing of the MagnaDrive adjustable-speed coupling systems (ASCS): A report for the Northwest Energy Efficiency Alliance. Northwest Energy Efficiency Alliance, 2000.

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Book chapters on the topic "High efficiency variable speed"

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Chassaing, P., R. A. Antonia, F. Anselmet, L. Joly, and S. Sarkar. "The High-Speed Turbulent Shear Layer." In Variable Density Fluid Turbulence. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-0075-7_9.

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Kaya, Durmuş, Fatma Çanka Kılıç, and Hasan Hüseyin Öztürk. "Energy Saving with Variable Speed Driver Applications." In Energy Management and Energy Efficiency in Industry. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-25995-2_15.

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Didden, M., J. Driesen, and R. Belmans. "Possible Problems and Solutions when Introducing Variable Speed Drives." In Energy Efficiency in Motor Driven Systems. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-55475-9_68.

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Forsha, Michael D., Kenneth E. Nichols, and Christine A. Beale. "High Efficiency, Variable Geometry, Centrifugal Cryogenic Pump." In Advances in Cryogenic Engineering. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2522-6_112.

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Caron, Stan, Arne Berteyn, Pieter Defreyne, Steve Dereyne, and Kurt Stockman. "Calorimetric Efficiency Determination of Power Electronic Variable Speed Drives." In Springer Proceedings in Energy. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69799-0_42.

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Abrahamsson, Henrik, Olof Hagsand, and Ian Marsh. "TCP over High Speed Variable Capacity Links: A Simulation Study for Bandwidth Allocation." In Protocols for High Speed Networks. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-47828-0_8.

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Radojčić, Dejan, Milan Kalajdžić, and Aleksandar Simić. "Propeller’s Open-Water Efficiency Modeling." In Power Prediction Modeling of Conventional High-Speed Craft. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-30607-6_4.

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Radojčić, Dejan, Milan Kalajdžić, and Aleksandar Simić. "Propeller’s Open-Water Efficiency Prediction." In Power Prediction Modeling of Conventional High-Speed Craft. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-30607-6_9.

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Wood, Don J., and L. S. Reddy. "Using Variable Speed Pumps to Reduce Leakage and Improve Performance." In Improving Efficiency and Reliability in Water Distribution Systems. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-017-1841-7_6.

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Wick, A. F. "Developments, Applications and Cost-Effectiveness of Variable Speed AC Drives." In Demand-Side Management and Electricity End-Use Efficiency. Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-1403-2_16.

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Conference papers on the topic "High efficiency variable speed"

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Wallace, A. K. "High efficiency testing laboratory for motors, drives and generators." In 6th International Conference on Power Electronics and Variable Speed Drives. IEE, 1996. http://dx.doi.org/10.1049/cp:19960916.

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Schofield, J. R. "Large variable speed drives for energy efficiency." In IEE Symposium on Design, Operation and Maintenance of High Voltage (3.3kV to 11kV) Electric Motors in Process Plant. IEE, 1998. http://dx.doi.org/10.1049/ic:19980376.

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Rolim, L. G. B. "Development of a high-efficiency switched reluctance drive using soft-switching techniques." In 6th International Conference on Power Electronics and Variable Speed Drives. IEE, 1996. http://dx.doi.org/10.1049/cp:19960913.

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Dmowski, A. "High efficiency resonant converter based on IGBTs with 100 kHz operation frequency." In Proceedings of 5th International Conference on Power Electronics and Variable-Speed Drives. IEE, 1994. http://dx.doi.org/10.1049/cp:19941048.

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Piegari, L., R. Rizzo, and P. Tricoli. "High Efficiency Wind Generators with Variable Speed Dual-Excited Synchronous Machines." In 2007 International Conference on Clean Electrical Power. IEEE, 2007. http://dx.doi.org/10.1109/iccep.2007.384306.

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Tsugawa, Takuji. "Search of High Efficiency Design by Another Specific Speed Design." In ASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/ajkfluids2019-4645.

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Abstract Quite a lot of design parameters exist when the designer designs the best performance impeller and guidevane. Finally, it is necessary to decide the detail 3D shape of impeller and guidevane. The best flow conditions of the flow velocity and the flow angle at the impeller inlet and outlet are designed as first step before impeller detailed 3D shape is designed. The detailed 3D shape is not necessary in this study. The optimum meridian shape has been found, assuming that the total loss head is addition of the blade-to-blade diffusion loss head and the hub-tip axial-symmetrical annular
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Ha, Keunsoo, Cheewoo Lee, Jaehyuck Kim, R. Krishnan, and Seok-gyu Oh. "Design and Development of Brushless Variable Speed Motor Drive for Low Cost and High Efficiency." In Conference Record of the 2006 IEEE Industry Applications Conference Forty-First IAS Annual Meeting. IEEE, 2006. http://dx.doi.org/10.1109/ias.2006.256757.

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Balderas Hill, Rafael, Sébastien Briot, Abdelhamid Chriette, and Philippe Martinet. "Increasing Energy Efficiency of High-Speed Parallel Robots by Using Variable Stiffness Springs and Optimal Motion Generation." In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-85090.

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The classical approach to decrease the energy consumption of high-speed robots is by lowering the moving elements mass in order to have a lightweight structure. Even if this allows reducing the energy consumed, the lightweight architecture affects the robot stiffness, worsening the accuracy of the mechanism. Recently, variable stiffness actuators (VSAs) have been used in order to reduce the energy consumption of high-speed pick-and-place robots. The idea is to smartly tune online the stiffness of VSA springs so that the robot is put in near a resonance mode, thus considerably decreasing the en
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Ionel, Dan M. "High-efficiency variable-speed electric motor drive technologies for energy savings in the US residential sector." In 2010 12th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM). IEEE, 2010. http://dx.doi.org/10.1109/optim.2010.5510481.

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Baharom, M. F., M. H. Jali, M. N. M. Nasir, Z. H. Bohari, S. A. Tarusan, and M. H. Misran. "Performance study in energy efficiency on variable speed drive, VSD design for serting high lift pumping station." In 2014 International Symposium on Technology Management and Emerging Technologies (ISTMET). IEEE, 2014. http://dx.doi.org/10.1109/istmet.2014.6936528.

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Reports on the topic "High efficiency variable speed"

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Bahman Habibzadeh. Very High Fuel Economy, Heavy Duty, Constant Speed, Truck Engine Optimized Via Unique Energy Recovery Turbines and Facilitated High Efficiency Continuously Variable Drivetrain. Office of Scientific and Technical Information (OSTI), 2010. http://dx.doi.org/10.2172/992845.

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West, Michael K., Ph.D. P.E. High-Efficiency Variable Dehumidification for Air Conditioners: ClimaStat. Office of Scientific and Technical Information (OSTI), 2006. http://dx.doi.org/10.2172/922139.

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Huang, Howard. Capability of Rolling Efficiency for 100M High-Speed Rails. Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1129201.

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Mendler, Charles. HIGH-EFFICIENCY VCR ENGINE with VARIABLE VALVE ACTUATION AND NEW SUPERCHARGING TECHNOLOGY. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1545742.

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Hawsey, R. A., B. B. Banerjee, and P. M. Grant. Power applications of high-temperature superconductivity: Variable speed motors, current switches, and energy storage for end use. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/383678.

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Payne, W. Vance, and Brian P. Dougherty. A side-by-side energy use comparison of a variable-speed small duct high velocity and two-stage conventional ducted heat pump in a net-zero energy home. National Institute of Standards and Technology, 2020. http://dx.doi.org/10.6028/nist.tn.2101.

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Effect of Spark Discharge Duration and Timing on the Combustion Initiation in a Lean Burn SI Engine. SAE International, 2021. http://dx.doi.org/10.4271/2021-01-0478.

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Meeting the increasingly stringent emission and fuel efficiency standards is the primary objective of the automotive research. Lean/diluted combustion is a promising avenue to realize high-efficiency combustion and reduce emissions in SI engines. Under the diluted conditions, the flame propagation speed is reduced because of the reduced charge reactivity. Enhancing the in-cylinder charge motion and turbulence, and thereby increasing the flame speed, is a possible way to harness the combustion process in SI engines. However, the charge motion can have a significant effect on the spark ignition
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