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How Aphron Drilling Fluids Work
Proceedings of SPE Annual Technical Conference and Exhibition, 2005Abstract Aphron drilling fluids, which are highly shear-thinning water-based fluids containing stabilized air-filled bubbles (aphrons), have been applied successfully worldwide to drill depleted reservoirs and other high-permeability formations.
A. Belkin +5 more
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Working Fluid Dependence on Source Temperature for Organic Rankine Cycles
Journal of energy resources technology, 2019This paper presents the results of numerical simulations of organic Rankine cycles (ORCs) for low-grade heat source temperature in the range of 373–653 K for 20 working fluids.
H. Pasinato
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Robust Design of Multicomponent Working Fluid for Organic Rankine Cycle
Industrial & Engineering Chemistry Research, 2019A method for designing the optimal working fluid mixture of organic Rankine cycles (ORC), which is robust against uncertainty in its composition, is developed. The objective function for designing the working fluid is formulated using statistical moments
Kyeong-Uk Kim +4 more
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Journal of solar energy engineering, 2018
The parabolic trough collector (PTC) is one of the most widely deployed concentrating solar power technology in the world. This study aims at improving the operational efficiency of the commercially available LS-2 solar collector by increasing the ...
Eric C. Okonkwo, M. Abid, T. Ratlamwala
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The parabolic trough collector (PTC) is one of the most widely deployed concentrating solar power technology in the world. This study aims at improving the operational efficiency of the commercially available LS-2 solar collector by increasing the ...
Eric C. Okonkwo, M. Abid, T. Ratlamwala
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Fluid biaxial banana phases: Symmetry at work
Ferroelectrics, 2000Abstract Fluid biaxial smectics made from compounds without asymmetric carbons but nevertheless with a spontaneous polarization are now known as banana smectics because of their molecular shape. Here we show that symmetry changes under parity (r ← - r) are an efficient way to summarize and differentiate their electro-optic properties.
Cladis, P., Brand, H., Pleiner, H.
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Haptic Device Working with an Electrorheological Fluid
Journal of Intelligent Material Systems and Structures, 1999A haptic device based on an electrorheological fluid has been designed and tested. The device is similar to ajoystick which controls the motion of a cursor on a computer screen. In electric fields of different strength the shear stress of the electrorheological fluid is increased accordingly, which is perceived by the user by different resistance ...
HOLGER BÖSE, HANS-JOACHIM BERKEMEIER
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Working Memory Capacity and Fluid Intelligence
Perspectives on Psychological Science, 2016Working memory capacity and fluid intelligence have been demonstrated to be strongly correlated traits. Typically, high working memory capacity is believed to facilitate reasoning through accurate maintenance of relevant information. In this article, we present a proposal reframing this issue, such that tests of working memory capacity and fluid ...
Zach, Shipstead +2 more
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Leon Lichtenstein’s Work on Rotating Fluids
1999Leon Lichtenstein was professor of mathematics in Leipzig from 1922 until he died in 1933. J. Schauder and E. Kahler were among his students [1]. In 1933, he published a monograph [2] with the title “Gleichgewichtsfiguren rotierender Flussigkeiten” — “Equilibrium figures of rotating fluids” — in which were collected all the work he had done on this ...
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