11,215 research outputs found
E-B Mixing in T-violating Superconductors
We analyze time reversal violating processes of the p-wave superconductor.
The Landau-Ginzuburg effective action has an induced T-violating term of
electromagnetic potentials which resembles the Chern-Simons term and causes a
mixing between the electric field and the magnetic field. Several T-violating
electromagnetic phenomena caused by this term, such as unusual Meissner effect,
Hall effect without magnetic field, and Farady rotation without magnetic field
are investigated.Comment: 10 pages, no figures, LaTex. The final version can be obtained from
"http://wwwsoc.nacsis.ac.jp/jps/jpsj/index.html
The square-lattice spiral magnet Ba_2CuGe_2O_7 in an in-plane magnetic field
The magnetic structure of Ba_2CuGe_2O_7 is investigated by neutron
diffraction in magnetic fields applied along several directions in the
plane of the crystal. In relatively weak fields, ~T, the
propagation vector of the spin-spiral rotates to form a finite angle with the
field direction. This angle depends on the orientation of itself. The
rotation of the propagation vector is accompanied by a re-orientation of the
plane of spin rotation in the spiral. The observed behaviour is well described
by a continuous-limit form of a free energy functional that includes exchange
and Dzyaloshinskii-Moriya interactions, as well as the Zeeman energy and an
empirical anisotropy term.Comment: 7 pages, 6 figure
Axial Anomaly Effect in Chiral p-wave Superconductor
We analyze the chiral p-wave superconductor in the low temperature region.
The superconductor has a epsilon_{x} p_{x} + i epsilon_{y} p_{y}-wave gap in
two dimensional space (2D). Near the second superconducting transition point,
the system could be described by a quasi-1D chiral p-wave model in 2D. The
axial anomaly occurs in such a model and causes an accumulation of the
quasiparticle in an inhomogeneous magnetic field. The effect is related to the
winding number of the gap.Comment: 12 pages, 1 figure, RevTex. The final version is accepted for
publication in J. Phys. Soc. Jp
Scheduling language and algorithm development study. Volume 2, phase 2: Introduction to plans programming
A user guide for the Programming Language for Allocation and Network Scheduling (PLANS) is presented. Information is included for the construction of PLANS programs. The basic philosophy of PLANS is discussed, and access and update reference techniques are described along with the use of tree structures
Nonlinear Two-Dimensional Green's Function in Smectics
The problem of the strain of smectics subjected to a force distributed over a
line in the basal plane has been solved
Spin and spin-spin correlations in chargino pair production at future linear e+e- colliders
A possibility to measure the spin and spin-spin correlations of a chargino
pair is investigated in the process electron positron -> chargino_1
anti-chargino_1 -> (neutralino_1 quark anti-quark) (neutralino_1 quark
anti-quark) at future linear-collider energies. The total and the differential
cross sections are calculated by the GRACE system which allows for the full
spin correlation. Experimental sensitivity of the measurements are examined by
assuming the limited detector resolution, the initial state radiation and the
beam-beam effect (beamstrahlung). It is found that generally the spin-spin
correlation can only be measured with a lower sensitivity than the chargino
spin itself. The dependence of the correlation measurements on the relevant
SUSY parameters can be seen for a light sneutrino case, but the situation
becomes worse for a heavier sneutrino.Comment: 23 pages, 7 figures, 6 tables; added reference for section
An evaluation of the relative efficacy of an open airway, an oxygen reservoir and continuous positive airway pressure 5 cmH2O on the non-ventilated lung
Publisher's copy made available with the permission of the publisher © Australian Society of AnaesthetistsThe aim of this study, during one-lung ventilation, was to evaluate if oxygenation could be improved by use of a simple oxygen reservoir or application of 5 cmH2O continuous positive airway pressure (CPAP) to the non-ventilated lung compared with an open airway. Twenty-three patients with lung malignancy, undergoing thoracotomy requiring at least 60 minutes of one-lung ventilation before lung lobe excision, were studied. After routine induction and establishment of one-lung ventilation, the three treatments were applied in turn to the same patient in a sequence selected randomly. The first treatment was repeated as a fourth treatment and these results of the repeated treatment averaged to minimize the effect of slow changes. Arterial oxygenation was measured by an arterial blood gas 15 minutes after the application of each treatment. Twenty patients completed the study. Mean PaO2 (in mmHg) was 210.3 (SD 105.5) in the 'OPEN' treatment, 186.0 (SD 109.2) in the 'RESERVOIR' treatment, and 240.5 (SD 116.0) in the 'CPAP' treatment. This overall difference was not quite significant (P=0.058, paired ANOVA), but comparison of the pairs showed that there was a significant better oxygenation only with the CPAP compared to the reservoir treatments (t=2.52, P=0.021). While the effect on the surgical field was not apparent in most patients, in one patient surgery was impeded during CPAP. Our results show that the use of a reservoir does not give oxygenation better than an open tube, and is less effective than the use of CPAP 5 cmH2O on the non-ventilated lung during one-lung ventilation.J. Slimani, W. J. Russell, C. Jurisevichttp://www.aaic.net.au/Article.asp?D=200404
- …