23,193 research outputs found
Powers opposed and intrinsic finks
Philosophers disagree over whether dispositions can be intrinsically finked or masked. Choi suggests that there are no clear, relevant differences between cases where intrinsic finks would be absurd and those where they seem plausible, and as a result rejects them wholesale. Here, I highlight two features of dispositional properties which, when considered together, provide a plausible explanation for when dispositions can be subject to intrinsic finks and when not
Numerical and analytical research of the impact of decoherence on quantum circuits
Three different levels of noisy quantum schemes modeling are considered:
vectors, density matrices and Choi-Jamiolkowski related states. The
implementations for personal computers and supercomputers are described, and
the corresponding results are shown. For the level of density matrices, we
present the technique of the fixed rank approximation and show some analytical
estimates of the fidelity level.Comment: 11 pages, 9 figures, report for the International Symposium "Quantum
Informatics-2014" (QI-2014), Zvenigorod, Moscow region, October 06-10, 201
International Trade in Genetically Modified Products
Gentically modified products; import ban; landowners
OT 501 Survey of Biblical Hebrew
Arnold, Bill T. and John H. Choi. A Guide to Biblical Hebrew Syntax. Cambridge: Cambridge University Press. Forthcoming. [GBHS] – in packet form at bookstore. Elliger, K., and W. Rudolph. Biblia Hebraica Stuttgartensia. Stuttgart: Deutsche Bibelgesellschaft, 1967-77. [BHS] Holladay, William L. A Concise Hebrew and Aramaic Lexicon of the Old Testament. Grand Rapids, Mich.: Eerdmans, 1971. [HALOT] Scott, William R. A Simplified Guide to BHS. Berkley, Calif.: BIBAL, 1987. [SG] Seow, C. L. A Grammar for Biblical Hebrew. Rev. ed. Nashville: Abingdon, 1995. [Seow]https://place.asburyseminary.edu/syllabi/2787/thumbnail.jp
Vortices around Dragonfly Wings
Dragonfly beats its wings independently, resulting in its superior
maneuverability. Depending on the magnitude of phase difference between the
fore- and hind-wings of dragonfly, the vortical structures and their
interaction with wings become significantly changed, and so does the
aerodynamic performance. In this study, we consider hovering flights of
modelled dragonfly with three different phase differences (phi=-90, 90, 180
degrees). The three-dimensional wing shape is based on that of Aeschna juncea
(Norberg, 1972), and the Reynolds number is 1,000 based on the maximum
translational velocity and mean chord length. The numerical method is based on
an immersed boundary method (Kim et al., 2001). In counter-stroke (phi=180
degree), the wing-tip vortices from both wings are connected in the wake,
generating an entangled wing-tip vortex (e-WTV). A strong downward motion
induced by this vortex decreases the lift force in the following downstroke
(Kweon and Choi, 2008). When the fore-wing leads the hind-wing (phi=90 degree),
the hind-wing is submerged in the vortices generated by the fore-wing and
suffers from their induced downwash flow throughout the downstroke, resulting
in a significant reduction of lift force. On the other hand, when the hind-wing
leads the fore-wing (phi=-90 degree), the e-WTV is found only near the start of
hind-wing upstroke. In the following downstroke of hind-wing, most of the e-WTV
disappears and the hind-wing is little affected by this vortex, which produces
relatively large lift force.Comment: Gallery of Fluid Motio
Book review: Russia’s Long Twentieth Century. Voices, Memories, Contested Perspectives
Book review "Chatterjee, Choi, Kirschenbaum, Lisa A. & Field, Deborah A., Russia’s Long Twentieth Century. Voices, Memories, Contested Perspectives. Abingdon & New York, NY: Routledge, 2016
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