Melt-spinning techniques are widely used now to produce rapidly solidified ribbons [1-3]. Multi-l... more Melt-spinning techniques are widely used now to produce rapidly solidified ribbons [1-3]. Multi-layered ribbons having good adherence between successive layers were obtained in some of the experiments performed with a centrifuge melt-spinning machine (CMSM) [4]. The present letter reports on the characteristics of the A1-Ge ribbons and discusses the adhesion ability of the melt-spun layers. The CMSM is described in detail elsewhere [5]. Briefly, it works as follows: a centrifugal force developed inside a spinning crucible expels the molten alloy upon the inner surface of a copper rim, which is itself either fixed or rotating. During some experiments the ribbonsscraping device malfunctioned and the alloy solidified on the copper rim in successive superposed layers. The experiments were carried out on an A1/51-wt% Ge alloy close to eutectic composition. The casting conditions are given in Table I. The SEM examination of the AI -Ge stratified ribbon showed mutual adherence of the successive layers. Almost perfect continuity was achieved. Fig. 1 presents a general view of the A1-Ge sample showing three successive layers: a, b and c. The mean thickness of the layers was measured: t(a) ~ 31.8/~m, t(b) ,~ 28.55/~m, t(c) ,,~ 33.8/~m. Layer a was the one in contact with the copper rim. The microstructure of the ribbon is eutectic degenerated. Tiny regions of a very fine lamellar structure were also detected (Fig. 2). The interfaces between layers a, b and c of the A I G e ribbon are shown separately at higher magnification ( x 7800) in Figs. 3 and 4. The three layers are largely continuous and the boundaries exhibit for the most part perfect adhesion (see, for example interface b c in Fig. 4). Fig. 3 shows a transition region between good and poor-adhesion zones. The last one is
The velocity of longitudinal and transverse sound waves was measured between 77 and 300 K and use... more The velocity of longitudinal and transverse sound waves was measured between 77 and 300 K and used to determine the Young modulus, the shear modulus, and the adiabatic compressibility of the polycrystalline, strong permanent magnet compound, Nb2Fe14B. The spin reorientation occurring near 150 K appears as an anomaly in the temperature dependence of the elastic moduli. The ΔE effect is of the order of 0.5% at 77 K.
Three recombinant fowlpox viruses: rFPV-H5HA-IL18、rFPV-H5HA-H7HA-IL18 and rFPV-H5HA were administ... more Three recombinant fowlpox viruses: rFPV-H5HA-IL18、rFPV-H5HA-H7HA-IL18 and rFPV-H5HA were administered to one-day-old specific pathogen free (SPF) chicken and seven-day-old commercial Leghorn egg laying chicken by wing web route. At 7, 14 and 21 days post infect, hemagglutination inhibition (HI) antibody titer and nonspecific cellular immunity level were quantified. The results showed all rFPV-vaccinated groups produced HI antibody, and cellular immunity levels induced by rFPV-H5HA-IL18 and rFPV-H5HA-H7HA-IL18 strains were significantly higher than that induced by rFPV-H5HA. At 21days post-inoculation, immunized SPF chicken and commercial Leghorn egg laying chicken were challenged with H5N1 HPAIV. rFPV-H5HA-IL18 and rFPV-H5HA-H7HA-IL18 strains could induce 10/10 protection against challenge with HPAIV. rFPV-H5HA strain induced 90% protection. For immunized egg laying chicken groups, cloacal swabbing samples were collected at 7 days post challenge, and no shedding was found in groups vaccinated with rFPV-H5HA-IL18 and rFPV-H5HA-H7HA-IL18. rF-PV-H5HA-IL18 and rFPV-H5HA-H7HA-IL18 strains-vaccinated groups displayed significantly enhanced weight gain compared to groups vaccinated with rFPV-H5HA.
We propose multi-particle interference protocols in the time-energy domain that are able to probe... more We propose multi-particle interference protocols in the time-energy domain that are able to probe topological quasiparticles. Using a set of quantum dots tunnel-coupled to a topologically nontrivial system, the time dependence of the dot level energies defines the interference protocol. We demonstrate that for a superconducting island harboring at least four Majorana bound states, the probability distribution of the final dot occupation numbers will exhibit a characteristic interferometric pattern which is qualitatively different in topologically trivial setups.
Melt-spinning techniques are widely used now to produce rapidly solidified ribbons [1-3]. Multi-l... more Melt-spinning techniques are widely used now to produce rapidly solidified ribbons [1-3]. Multi-layered ribbons having good adherence between successive layers were obtained in some of the experiments performed with a centrifuge melt-spinning machine (CMSM) [4]. The present letter reports on the characteristics of the A1-Ge ribbons and discusses the adhesion ability of the melt-spun layers. The CMSM is described in detail elsewhere [5]. Briefly, it works as follows: a centrifugal force developed inside a spinning crucible expels the molten alloy upon the inner surface of a copper rim, which is itself either fixed or rotating. During some experiments the ribbonsscraping device malfunctioned and the alloy solidified on the copper rim in successive superposed layers. The experiments were carried out on an A1/51-wt% Ge alloy close to eutectic composition. The casting conditions are given in Table I. The SEM examination of the AI -Ge stratified ribbon showed mutual adherence of the successive layers. Almost perfect continuity was achieved. Fig. 1 presents a general view of the A1-Ge sample showing three successive layers: a, b and c. The mean thickness of the layers was measured: t(a) ~ 31.8/~m, t(b) ,~ 28.55/~m, t(c) ,,~ 33.8/~m. Layer a was the one in contact with the copper rim. The microstructure of the ribbon is eutectic degenerated. Tiny regions of a very fine lamellar structure were also detected (Fig. 2). The interfaces between layers a, b and c of the A I G e ribbon are shown separately at higher magnification ( x 7800) in Figs. 3 and 4. The three layers are largely continuous and the boundaries exhibit for the most part perfect adhesion (see, for example interface b c in Fig. 4). Fig. 3 shows a transition region between good and poor-adhesion zones. The last one is
The velocity of longitudinal and transverse sound waves was measured between 77 and 300 K and use... more The velocity of longitudinal and transverse sound waves was measured between 77 and 300 K and used to determine the Young modulus, the shear modulus, and the adiabatic compressibility of the polycrystalline, strong permanent magnet compound, Nb2Fe14B. The spin reorientation occurring near 150 K appears as an anomaly in the temperature dependence of the elastic moduli. The ΔE effect is of the order of 0.5% at 77 K.
Three recombinant fowlpox viruses: rFPV-H5HA-IL18、rFPV-H5HA-H7HA-IL18 and rFPV-H5HA were administ... more Three recombinant fowlpox viruses: rFPV-H5HA-IL18、rFPV-H5HA-H7HA-IL18 and rFPV-H5HA were administered to one-day-old specific pathogen free (SPF) chicken and seven-day-old commercial Leghorn egg laying chicken by wing web route. At 7, 14 and 21 days post infect, hemagglutination inhibition (HI) antibody titer and nonspecific cellular immunity level were quantified. The results showed all rFPV-vaccinated groups produced HI antibody, and cellular immunity levels induced by rFPV-H5HA-IL18 and rFPV-H5HA-H7HA-IL18 strains were significantly higher than that induced by rFPV-H5HA. At 21days post-inoculation, immunized SPF chicken and commercial Leghorn egg laying chicken were challenged with H5N1 HPAIV. rFPV-H5HA-IL18 and rFPV-H5HA-H7HA-IL18 strains could induce 10/10 protection against challenge with HPAIV. rFPV-H5HA strain induced 90% protection. For immunized egg laying chicken groups, cloacal swabbing samples were collected at 7 days post challenge, and no shedding was found in groups vaccinated with rFPV-H5HA-IL18 and rFPV-H5HA-H7HA-IL18. rF-PV-H5HA-IL18 and rFPV-H5HA-H7HA-IL18 strains-vaccinated groups displayed significantly enhanced weight gain compared to groups vaccinated with rFPV-H5HA.
We propose multi-particle interference protocols in the time-energy domain that are able to probe... more We propose multi-particle interference protocols in the time-energy domain that are able to probe topological quasiparticles. Using a set of quantum dots tunnel-coupled to a topologically nontrivial system, the time dependence of the dot level energies defines the interference protocol. We demonstrate that for a superconducting island harboring at least four Majorana bound states, the probability distribution of the final dot occupation numbers will exhibit a characteristic interferometric pattern which is qualitatively different in topologically trivial setups.
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