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  • 1
    Electronic Resource
    Electronic Resource
    Experimental investigation of three-component magnetic reconnection by use of merging spheromaks and tokamaks : The 38th annual meeting of the Division of Plasma Physics (DPP) of the American Physical Society (1997)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 4 (1997), S. 1953-1963 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A laboratory experiment of magnetic reconnection has been developed in the Tokyo University Spherical Torus (TS-3) [Y. Ono et al., Phys. Fluids B 5, 3691 (1993)] merging device, using two colliding plasma toroids with cohelicity and counterhelicity. The conventional two-component reconnection was extended experimentally to three-component reconnections by introducing a new field component BX parallel to the X-line, an external force and a reconnection-driven global equilibrium transition. Selective ion heating accompanied by a field-aligned jet was documented during the counterhelicity reconnection without BX, indicating its direct energy-conversion into the ion thermal energy. Ion heating, current-sheet resistivity and reconnection rate all increase significantly with decreasing BX and with increasing the external force, indicating three-component and driven effects of reconnection. The anomalous sheet-current dissipation and the ion heating are both found to depend on whether the current-sheet is compressed shorter than the ion gyroradius or not. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872337
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  • 2
    Electronic Resource
    Electronic Resource
    Development of a steady-state microwave ion source with large spherical electrodes for geometrical focusing : The 8th international conference on ion sources (2000)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 71 (2000), S. 1144-1147 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A steady-state electron cyclotron resonance ion source with large spherical electrodes has been developed to study the plasma wall interaction, erosion mechanism, and hydrogen retention of first wall materials in a nuclear fusion reactor. Discharge characteristics of the ion source were studied in terms of microwave power, magnetic field configuration, and gas (H2) pressure. Ion saturation current density Jis of about 21 mA/cm2 near the electrodes (target value is 20 mA/cm2) was achieved with microwave power of 3.0 kW and magnetic field of 2.3 kG at an optimal gas pressure. The measurement of Jis was made by a Langmuir probe. It was found that the dependence of ion saturation current density on the magnetic field was different between high (〉5 mTorr) and low (〈5 mTorr) pressure. The change of the gas inlet position from the center of the plasma production chamber to near the microwave input window gave higher ion saturation current density. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1150410
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  • 3
    Electronic Resource
    Electronic Resource
    Bandpass photon detector for inverse photoemission spectroscopy (1993)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 64 (1993), S. 87-90 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The performance of the bandpass photon detector for inverse photoemission spectroscopy has been significantly improved. The detector basically consists of a simple combination of a SrF2 entrance window and a commercial Cu–BeO photomultiplier. RbCl (KBr) evaporation onto the SrF2 window realizes a FWHM of 0.51 eV (0.58 eV), at the sacrifice of sensitivity. On the other hand, KCl evaporation onto the first dynode of the photomultiplier provides good characteristics for the photon detector not only with respect to the FWHM but also in terms of the sensitivity. The new detector has a FWHM of 0.47 eV with a maximum response at a photon energy of 9.4 eV. The sensitivity is improved by about one order of magnitude.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1144407
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  • 4
    Electronic Resource
    Electronic Resource
    047 
Allogeneic Transplantation of Genetically Modified Primate Embryonic Stem Cells (2004)
    Oxford, UK; Malden, USA : Blackwell Science Inc
    Wound repair and regeneration 12 (2004), S. 0 
    Details
    ISSN: 1524-475X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Aim: To examine the efficacy and safety of human embryonic stem (ES) cell-based therapies, allogeneic transplantation of monkey ES cells would be useful. We transplanted genetically marked monkey ES cells into the allogeneic fetus. Methods and Results: Cynomolgus ES cells were transduced once using a simian immunodeficiency virus-based lentivirus vector encoding the GFP gene driven by the CMV promoter at 1, 10 and 100 transducing units per cell. Five days posttransduction, 60, 80 and 90% of the cells expressed GFP, respectively, and the expression levels were stable for 5 months. GFP expression was still observed after embryoid-body formation. The gene-marked ES cells were transplanted into the cynomolgus fetus in the abdominal cavity (n = 2) or liver (n = 1) after the first trimester. The fetuses were delivered 1 month posttransplantation. Transplanted cell progeny were detected (∼1%) in multiple tissues by quantitative PCR and in situ PCR of the GFP sequence. No teratoma was found in the tissues. Conclusions: Cynomolgus ES cells can be engrafted in the allogeneic fetus. We are now trying to transplant cynomolgus ES cells differentiated to neural or hematopoietic lineage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1067-1927.2004.abstractbi.x
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  • 5
    Electronic Resource
    Electronic Resource
    Giant magnetoimpedance effect in nanocrystalline Fe74SixB22−xCu1Nb3 ribbons : The 41st annual conference on magnetism and magnetic materials (1997)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 81 (1997), S. 5787-5789 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We investigated the magnetoimpedance (MI) effect for the soft magnetic nanocrystalline Fe74SixB22−xCu1Nb3 (x=4–18) alloys, and also the relationship between the magnetic properties and the MI effect. The annealing temperature dependence of the MI ratio corresponds to that of the permeability of longitudinal direction of the samples. However, the Si concentration dependence of the longitudinal permeability is different from that of the MI ratio. The maximum MI ratio and the highest field sensitivity for the sample with x=16 after annealing at 570 °C for 1 h are 67% and 23%/Oe, respectively. The MI effect is affected by the magnetic uniaxial anisotropy which is along the longitudinal direction of the ribbon samples. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.364668
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  • 6
    Electronic Resource
    Electronic Resource
    Epitaxial growth of CeO2 layers on silicon (1990)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 56 (1990), S. 1332-1333 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: CeO2 layer was epitaxially grown for the first time on both (111) and (100) silicon substrates by vacuum evaporation. Characterization using Rutherford backscattering and reflection high-energy electron diffraction proved that a CeO2 layer on (111) Si has considerably good crystalline quality, whereas that on (100)Si contains a large amount of crystallographic defects, especially in the vicinity of the CeO2/Si interface. Auger electron spectroscopy analysis showed a uniform concentration distribution of Ce and O throughout the epitaxial layer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.103202
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  • 7
    Electronic Resource
    Electronic Resource
    Structural and optical properties of distyrylbenzene derivative thin films (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 86 (1999), S. 6150-6154 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In order to understand the relationship between the molecular orientation and optical properties of oligophenylenevinylene film, oriented thin films of 1,4-di(p-methoxystyryl)benzene (DSB-1) and 1,4-di(p-methoxystyryl)-2,5-dimethoxybenzene (DSB-2) were fabricated on a potassium bromide (KBr) (001) surface by the vacuum-evaporation method. The structures and optical properties of DSB films have been investigated by transmission electron microscopy (TEM), atomic force microscopy (AFM) and polarized photoluminescence (PL) spectroscopy, respectively. DSB-1 molecules orient obliquely and/or parallel to the substrate surface depending on the substrate temperature. On the other hand, DSB-2 molecules tend to grow epitaxially with the molecular plane parallel to the substrate surface. The anisotropic molecular orientations represent the polarized PL. The epitaxial growth and molecular orientations observed by TEM and AFM at the local and microscopic scale are confirmed by polarized PL measurement on a macroscopic scale. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.371667
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  • 8
    Electronic Resource
    Electronic Resource
    The characteristics of a microcapsule with an entirely new wall material, ‘silicone–resin–polypeptide’, and its application (2004)
    Oxford, UK : Blackwell Science Ltd
    International journal of cosmetic science 26 (2004), S. 0 
    Details
    ISSN: 1468-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Many studies on the preparation and application of microcapsules have been reported in the literature. We developed an innovative encapsulation technology by using silicone–resin–polypeptide as the encapsulating material. The resultant microcapsule was easily prepared from silicone–resin–polypeptide. For this microcapsule not only was the extent of encapsulation as high as 90%, but the particle size could be controlled to obtain very small sizes (average particle diameter was 2.2 μm) as well. Moreover, these microcapsules were resistant to relatively high shear forces and were stable over a long-time period. Application in cosmetics by using microcapsule involving UV absorbers was examined. It was possible to apply organic UV absorbers in water-rich formulations without any surfactant. This formulation demonstrated a good moisturizing and soft skin feel. The result showed this microcapsule might be widely applied in cosmetics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-2494.2004.00224_3.x
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  • 9
    Electronic Resource
    Electronic Resource
    Polymerization to graphite-like nitride clusters from tetracyanoethylene vapor (1994)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 65 (1994), S. 1909-1911 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Various types of graphite-like nitride clusters were synthesized by chemical vapor deposition of tetracyanoethylene (TCE) onto a substrate of cleaved KCl crystals at 230–300 °C. At a low reaction temperature of 230 °C, TCE was polymerized to ribbon-like clusters, which resembled curved graphitic sheets. Upon increasing the reaction temperature to 250–300 °C, polymerized TCE condensed on KCl to form spheric clusters. The most regular structure of the clusters was obtained at 300 °C in a nanoscale needle-like morphology. High-resolution electron microscopy suggested that these clusters were composed of polymerized TCE layers with a interlayer distance of 0.34–0.35 nm. © 1994 American Institue of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.112814
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  • 10
    Electronic Resource
    Electronic Resource
    Discharge frequency dependence of particulate growth in high frequency silane plasmas (1995)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 67 (1995), S. 3880-3882 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Discharge frequency dependence of growth of particulates is studied in high frequency silane plasmas. Particulates appear earlier after discharge initiation and the increasing rate of their amount in the subsequent phase decreases with increasing the discharge frequency from 3.5 to 28 MHz. Even in the early phase of their formation for all 3.5–28 MHz discharges, particulates grow principally around the plasma/sheath boundary near the powered electrode, where short lifetime radicals are actively generated. For 28 MHz, the density of particulates in the early discharge phase is extremely high (≥1011 cm3). The latter two features suggest that many short lifetime neutral radicals (such as SiH2), being produced at a high rate, significantly contribute to the nucleation and initial growth of one particulate, at least, for a relatively high power density of the order of 0.5 W/cm2. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.115304
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