65,702 research outputs found
Integration of overseas-trained doctors into the Australian medical workforce
The document attached has been archived with permission from the editor of the Medical Journal of Australia. An external link to the publisher’s copy is included. See page 7 of PDF for this item.Linsey S Hart, Jane Vernon-Robert
Soft Pion Emission in Semileptonic -Meson Decays
An analysis of semileptonic decays of mesons with the emission of a
single soft pion is presented in the framework of the heavy-quark limit using
an effective Lagrangian which implements chiral and heavy-quark symmetries. The
analysis is performed at leading order of the chiral and inverse heavy mass
expansions. In addition to the ground state heavy mesons some of their
resonances are included. The estimates of the various effective coupling
constants and form factors needed in the analysis are obtained using a chiral
quark model. As the main result, a clear indication is found that the
and resonances substantially affect the decay mode with a in
the final state, and a less dramatic effect is also noticed in the mode. An
analysis of the decay spectrum in the squared invariant mass
is carried out, showing the main effects of including the resonances. The
obtained rates show promising prospects for studies of soft pion emission in
semileptonic -meson decays in a -meson factory where, modulo experimental
cuts, about such decays in the meson mode and in the
mode could be observed per year.Comment: 41 pages, uses revtex, epsf. 16 uuencoded postscript figures appended
after `\end{document
An Alternative to Using Fresh Alfalfa for Culturing \u3ci\u3eColias Philodice Eurytheme\u3c/i\u3e Boisduval (Lepidoptera: Pieridae)
Various artificial materials were implemented at each life stage of the alfalfa caterpillar, Colias philodice eurytheme Boisduval, to provide effective and economical replacements for alfalfa. Alfalfa substitutes were used for oviposition and feeding. We also developed a favorable laboratory mating environment. Also, the development of a method for removing disease organisms from eggs without increasing egg mortality was an essential facet of this work. The performance of individuals on artificial surfaces was compared with similar individuals reared on greenhouse alfalfa.
Green tape oriented at the top of oviposition cages or near some object which could be held on to while ovipositing was the most successful surface. Egg yields on green tape were comparable to those on alfalfa. A dilute bleach wash followed by two water washes required little time, yet provided adequate disease control, and all larval instars thrived on artificial diet. Methods for handling pupae and new adults and the favorable mating environment reduced colony maintenance time yet sumival rates insured propagation of the colony
Experimental results of the control of a vortical flow by tangential blowing
The results of a wind tunnel test to investigate the controlling effects of tangential, leading edge blowing on the vortical flow over a delta wing are given. Blowing is used to directly control the crossflow separation points at the rounded leading edge and hence, the trajectory of the feeding sheet and the location of the vortex. Experiments were conducted for both co-flowing and counter-flowing configurations over a range of angles of attack from 0 to 90 degrees. Results in the form of pressure distributions, overall force coefficients and flow mappings were obtained. The emphasis is on data presentation rather than detailed analysis. The initial results indicate that the co-flowing configuration was capable of extending the regime of stable, controlled vortical flow over the upper surface by approximately 30 degrees angle of attack for modest blowing requirements. Increases in maximum normal force coefficient of approximately 30% were achieved and significant rolling moments produced at angles of attack from 30 to 60 degrees. The counter-flowing configuration indicated only minor lift augmentation with the exception of an isolated occurrence at 20 degrees angle of attack. At that condition, with very weak blowing, a lift augmentation of approximately 20 was measured
Cardiovascular Effects of Vibration Semiannual Report, 1 Aug. 1965 - 28 Feb. 1966
Vibration induced cardiovascular changes in anesthetized dog
Analysis of selected problems involving vortical flows
Three selected problems involving vortical flows are analyzed and discussed including: the trailing vortex behind a wing; rotor blade-vortex interaction; and the leading edge vortex on a flat plate
A Remark on Quantum Group Actions and Nuclearity
Let H be a compact quantum group with faithful Haar measure and bounded
counit. If H acts on a C*-algebra A, we show that A is nuclear if and only if
its fixed-point subalgebra is nuclear. As a consequence H is a nuclear
C*-algebra.Comment: 12 pages, LateX 2
Electron Temperature of Ultracold Plasmas
We study the evolution of ultracold plasmas by measuring the electron
temperature. Shortly after plasma formation, competition between heating and
cooling mechanisms drives the electron temperature to a value within a narrow
range regardless of the initial energy imparted to the electrons. In agreement
with theory predictions, plasmas exhibit values of the Coulomb coupling
parameter less than 1.Comment: 4 pages, plus four figure
Forcing boundary-layer transition on an inverted airfoil in ground effect and at varying incidence
Presented at 34th AIAA Applied Aerodynamics ConferenceThe influence of the laminar boundary-layer state on a wing operating in ground effect at Re = 6 × 10 has been investigated using experiments with a model that provides two-dimensional flow and computations with a panel-method code. The effect of a boundary-layer trip placed at varying distances from the leading edge was observed at various incidences in terms of on-surface characteristics, including pressure measurements, flow visualisation and hot-film anemometry, and off-surface characteristics with LDA surveys below and behind the wing. The act of forcing transition led to downforce being reduced and drag increased, moreover, it altered almost all aspects of the wing’s aerodynamic characteristics, with the effect becoming greater as the trip was placed closer to the leading edge. These aspects include the replacement of a laminar separation bubble with trailing-edge separation, a thicker boundary layer, and a thicker wake with greater velocity deficit. The importance of considering laminar phenomena for wings operating in ground effect has been show
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