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  • 1
    Electronic Resource
    Electronic Resource
    Wiggler x-ray beamlines at Synchrotron Radiation Research Center : Proceedings of the 5th international conference on synchrotron radiation instrumentation (1995)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 66 (1995), S. 1812-1814 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We have designed three x-ray beamlines extracted out from one 25-pole 1.8 T wiggler insertion device. This wiggler insertion device at the Synchrotron Radiation Research Center 1.3 GeV storage ring will increase the usable x-ray photons with an energy up to 15 keV. In order to satisfy the big x-ray user community at Taiwan, we need to have at least three different types of beamlines to cover various kinds of experiments. Due to limitation of radiation source and space, we have specially designed three x-ray beam lines sharing the 13 mrad horizontal radiation output from the insertion device. The design and construction of these three beamlines will be described in this article. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1145791
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  • 2
    Electronic Resource
    Electronic Resource
    Polycrystalline GaInAs/AlInAs films for photoconductive detectors (1995)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 67 (1995), S. 1588-1590 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We show that thin Al0.48In0.52As layers in Ga0.47In0.53As alloy films, can be used to trap free carriers, and produce high resistivity materials suitable for 1.55 μm photoconductive detectors. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.114948
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  • 3
    Electronic Resource
    Electronic Resource
    Enhancement of Coulomb blockade and tunability by multidot coupling in a silicon-on-insulator-based single-electron transistor (1999)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 75 (1999), S. 566-568 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A dual-gate-controlled single-electron transistor with coupled dot geometry has been fabricated on a silicon-on-insulator structure. Coupled dots are defined by tunable gates which are designed to separately control the tunneling potential barriers to compensate for disorder due to size fluctuation in quantum dots. The Coulomb-blockade phenomena observed in linear and nonlinear transport regimes were found to be enhanced by the multidot coupling. The Coulomb staircase (nonlinear effect) appears more clearly with the increasing number of coupled dots, indicating definite suppression of the inevitable cotunneling process. In the linear regime, the frequency of Coulomb oscillation was able to be tuned by changing the interdot coupling strength. These results indicate that enhancement of the Coulomb blockade and tunability can be achieved through replacing the traditional single dot by gate-controlled multidots in future single-electron devices. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.124443
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  • 4
    Electronic Resource
    Electronic Resource
    Rubbing-free, vertically aligned nematic liquid crystal display controlled by in-plane field (1997)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 71 (1997), S. 2851-2853 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We fabricated a homeotropically aligned nematic liquid crystal display with positive dielectric anisotropy, whose on and off states are controlled by in-plane field. The rubbing-free device, dark in voltage-off state, reveals bright uniformity in all directions due to the dual domainlike director configuration in the voltage-on state. The electro-optic characteristics of one prototype with excellent viewing angles are reported herein. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.120153
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  • 5
    Electronic Resource
    Electronic Resource
    Phase transitions and critical dynamics in (C18H37NH3)2SnCl6 (1996)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 104 (1996), S. 6964-6966 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Phase transitions in the layer structured (C18H37NH3)2SnCl6 were studied using 1H NMR. The spin-lattice relaxation rate reflects the critical slowing down around the order–disorder phase transition temperature, and is compatible with the three-dimensional Ising model. A critical slowing down is also observed at the conformational transition in the second moment measurement, presumably for the first time. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.471413
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  • 6
    Electronic Resource
    Electronic Resource
    Use of Supercritical Fluid Chromatography for Obtaining Mass Transfer Coefficients in Fluid-Solid Systems at Supercritical Conditions (1995)
    s.l. : American Chemical Society
    Industrial & engineering chemistry research 34 (1995), S. 906-914 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie00042a025
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  • 7
    Electronic Resource
    Electronic Resource
    Identification of the series-specific random amplified polymorphic DNA markers of Viola species (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 117 (1998), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Although many Viola species are grown as ornamentals, no information on molecular markers is available for the classification and breeding of Viola. Random amplified polymorphic DNA (RAPD) analysis was applied to identify series-specific molecular markers from the series Pinnatae, Chinensis, and Variegatae of Viola species in the subsection Patellares. We report eight RAPD markers which can be used to distinguish three different series of Viola species based on morphological characters. The eight RAPD markers we identified could be useful to classify Viola species and to assist the hybrid breeding of new varieties.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1998.tb01945.x
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  • 8
    Electronic Resource
    Electronic Resource
    Guidelines on sodium lauryl sulfate (SLS) exposure tests (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Contact dermatitis 37 (1997), S. 0 
    Details
    ISSN: 1600-0536
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: This report reviews the clinical and hisiopathological reactions caused by sodium lauryl sulfate (SLS), and the non-invasive methods that can characterize these reactions. Furthermore, SLS exposure techniques and factors that may influence the outcome of these exposures are discussed. Finally, guidelines are introduced for each exposure technique in order 10 have a uniform approach to SLS jesting in man. Since different study aims warrant different testing conditions, we have proposed 2 categories, namely susceptibility testing and provocative testing, tailored to the aim with which the study is performed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0536.1997.tb00041.x
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  • 9
    Electronic Resource
    Electronic Resource
    Geochemistry and mineralization age of magnesian skarn-type iron deposits of the Janggun mine, Republic of Korea (1998)
    Springer
    Mineralium deposita 33 (1998), S. 379-390 
    Details
    ISSN: 1432-1866
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The Janggun iron deposits, Republic of␣Korea, occur as lens-shaped magnesian skarn, magnetite and base-metal sulfide orebodies developed in the Cambrian Janggun Limestone Formation. Mineralization stage of the deposits can be divided into two separate events. The skarn stage (107 Ma) consists of magnetite, pyrrhotite, base-metal sulfides, carbonates and magnesian skarn minerals. The hydrothermal stage (70 Ma) consists of base-metal sulfides, native bismuth, bismuthinite, tetrahedrite, boulangerite, bournonite and stannite. Mineral assemblages, chemical compositions and thermodynamic considerations indicate that formation temperatures, −log fs2 and −log fo2 values of ore fluids from the skarn stage were 433 to 345 °C, 8.1 to 9.7 bar and 29.4 to 31.6 bar, and the hydrothermal stage was 245 to 315 °C, 10.4 to 13.2 bar and 33.6 to 35.4 bar, respectively. Thermochemical considerations indicate that the XCO2 during magnesian skarnization ranged from 0.06 to 0.09, and the activity of H+ presumably decreased when the fluids equilibrated with host dolomitic limestone which resulted in a pH change from about 6.1 to 7.8, and decreases in fo2 and fs2. The δ34S values of ore sulfides have a wide range from 3.2 to 11.6 ‰ (CDT). Calculated 34SH2 S values of ore fluids are 2.9 to 5.4 ‰ (skarn stage) and 8.7 to 13.5 ‰ (hydrothermal stage). These are interpreted to represent an initial deep-seated, igneous source of sulfur which gave way to influence of oxidized sedimentary sulfur to hydrothermal stage. The δ13C values of carbonates in ores range from −4.6 to −2.5 ‰ (PDB). It is likely that carbon in the ore fluids was a mixture of deep-seated magmatic carbon and dissolved carbon of dolomitic limestone. The δ18OH2 O and δD values (SMOW) of water in the ore fluids were 14.7 to 1.8 and −85 to −73 ‰ during the skarn stage and 11.1 to −0.2 and −87 to −80 ‰ in the hydrothermal stage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001260050156
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  • 10
    Electronic Resource
    Electronic Resource
    Chlorophyll fluorescence assay for kanamycin resistance screening in transgenic plants (1998)
    Springer
    Plant cell reports 17 (1998), S. 189-194 
    Details
    ISSN: 1432-203X
    Keywords: Key words Chlorophyll fluorescence ; Kanamycin resistance screening ; Tobacco ; Arabidopsis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The applicability of a chlorophyll fluorescence assay for kanamycin (Km) resistance screening in transgenic tobacco (Nicotiana tabacum) and Arabidopsis thaliana plants was investigated. In wild-type leaves incubated in the presence of 200 mg/l Km, a decrease in maximum variable fluorescence ((Fv)m) and a significant increase in constant fluorescence (Fo) were observed. Using (Fv)m/Fo as a screening parameter, we were able to distinguish Km-treated samples from untreated samples within 4 days. This parameter was applied to Km resistance screening using tobacco plants transformed with the nptII gene via Agrobacterium. Among 74 shoots selected on medium containing 200 mg/l Km, 37 plants were scored as Km sensitive by the chlorophyll fluorescence assay. These 74 scorings proved to be accurate, as reconfirmed by (1) polymerase chain reaction amplification of the transgene, (2) enzymatic assay of neomycin phosphotransferase and (3) leaf disc assay. Using the chlorophyll fluorescence assay, we could also screen 3-week old Arabidopsis plants carrying the nptII gene. These results clearly demonstrate the reliability and efficiency of this nondestructive assay for Km resistance screening of transgenic plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002990050376
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