The effects of cold rolling on the notched and unnotched tensile properties of type 310 stainless steel at plus 75 deg F, minus 320 deg F and minus 423 deg F

Effects of cold rolling on notched and unnotched tensile properties of type 310 stainless stee

Photon tunneling through absorbing dielectric barriers

Using a recently developed formalism of quantization of radiation in the presence of absorbing dielectric bodies, the problem of photon tunneling through absorbing barriers is studied. The multilayer barriers are described in terms of multistep complex permittivities in the frequency domain which satisfy the Kramers--Kronig relations. From the resulting input--output relations it is shown that losses in the layers may considerably change the photon tunneling times observed in two-photon interference experiments. It is further shown that for sufficiently large numbers of layers interference fringes are observed that cannot be related to a single traversal time.Comment: 17 pages LaTeX, 9 figures (PS) include

Entanglement degradation of a two-mode squeezed vacuum in absorbing and amplifying optical fibers

Applying the recently developed formalism of quantum-state transformation at absorbing dielectric four-port devices [L.~Kn\"oll, S.~Scheel, E.~Schmidt, D.-G.~Welsch, and A.V.~Chizhov, Phys. Rev. A {\bf 59}, 4716 (1999)], we calculate the quantum state of the outgoing modes of a two-mode squeezed vacuum transmitted through optical fibers of given extinction coefficients. Using the Peres--Horodecki separability criterion for continuous variable systems [R.~Simon, Phys. Rev. Lett. {\bf 84}, 2726 (2000)], we compute the maximal length of transmission of a two-mode squeezed vacuum through an absorbing system for which the transmitted state is still inseparable. Further, we calculate the maximal gain for which inseparability can be observed in an amplifying setup. Finally, we estimate an upper bound of the entanglement preserved after transmission through an absorbing system. The results show that the characteristic length of entanglement degradation drastically decreases with increasing strength of squeezing.Comment: Paper presented at the International Conference on Quantum Optics and VIII Seminar on Quantum Optics, Raubichi, Belarus, May 28-31, 2000, 11 pages, LaTeX2e, 4 eps figure

Pressure Induced Hydration Dynamics of Membranes

Pressure-jump initiated time-resolved x-ray diffraction studies of dynamics of the hydration of the hexagonal phase in biological membranes show that (i) the relaxation of the unit cell spacing is non-exponential in time; (ii) the Bragg peaks shift smoothly to their final positions without significant broadening or loss in crystalline order. This suggests that the hydration is not diffusion limited but occurs via a rather homogeneous swelling of the whole lattice, described by power law kinetics with an exponent $\beta = 1.3 \pm 0.2$.Comment: REVTEX 3, 10 pages,3 figures(available on request),#

Minor and major flaws of a widely used data set: the ICPSR 'German Weimar Republik data 1919-1933' under scrutiny

Die Deutsche Forschungsgemeinschaft und die Stiftung Volkswagenwerk finanzieren zwei getrennte, aber thematisch zusammenhängende Forschungsprojekte über Wahlen und das Wahlverhalten in der Weimarer Republik und Österreich. Beide Forschungsteams arbeiten unter der Leitung von J. Falter an der Hochschule der Bundeswehr in München. Der größte Teil ihrer Arbeit greift, neben anderen Quellen, auf die vielbenutzte Datensammlung 'German Weimar Republic Data 1919 - 1933' (ICPSR Nr. 0042) zurück, die in der BRD vom Kölner Zentralarchiv für europäische Sozialforschung betrieben wird. (KWübers.)'The Deutsche Forschungsgemeinschaft and the Stiftung Volkswagenwerk are funding two separate but thematically connected research projects on elections and voting behaviour in Weimar Germany and Austria. The two research teams, headed by J. Falter, are based at the Hochschule der Bundeswehr in Munich (German Military University, Munich). Much of their work is, among other sources, drawing on the widely used ICPSR data set 'German Weimar Republic Data 1919 - 1933' (ICPSR No. 0042) which is distributed in West Germany by the Cologne Zentralarchiv für empirische Sozialforschung.' (author's abstract

The effects of cold rolling on the mechanical properties of type 310 stainless steel at room and cryogenic temperatures

Effects of cold rolling on mechanical properties of type 310 stainless steel at room and cryogenic temperature