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  • 1
    Electronic Resource
    Electronic Resource
    Quantum inverse scattering method for a nonlinear N-wave resonance interaction system (1989)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 30 (1989), S. 668-672 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: The quantum inverse scattering method is used for the study of a nonlinear N-wave resonance interaction system. The Yang–Baxter relations are solved to get various commutation relations for the scattering data operators. The energy spectrum of the quantum Hamiltonian for the model is determined and the existence of the quantum bound states is analyzed. In the classical limit, the corresponding r matrix is found, and the well-established correspondence between the classical solitons and the quantum bound states is examined. Finally, the integrability of the same model but with both fermion fields and boson fields is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.528436
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  • 2
    Electronic Resource
    Electronic Resource
    Hidden local gauge invariance in the one-dimensional Hubbard model and its equivalent coupled spin model (1990)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 31 (1990), S. 1544-1550 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: Hidden local gauge invariance in the one-dimensional (1-D) Hubbard model and its equivalent coupled spin model is studied. It is found that Abelian U(1)⊗U(1) gauge transformations appear in both cases. Furthermore, it is shown that the energy spectrum is gauge invariant whereas the eigenvectors are explicitly gauge dependent. However, this result relies heavily on Shastry's conjecture about the eigenvalue of the transfer matrix for the 1-D Hubbard model. Lastly, there is also a discrete symmetry associated to Z2⊗Z2. Once this symmetry is broken, one immediately obtains another nontrivial solution to the Yang–Baxter relations. UFaipxr
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.529023
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  • 3
    Electronic Resource
    Electronic Resource
    Three-stack, three-color quantum-well infrared photodetector for mid-, long-, and very long-wavelength infrared detection (2001)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 79 (2001), S. 2982-2984 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A high-performance three-stack, three-color quantum-well infrared photodetector for the mid-, long-, and very long-wavelength infrared detection has been developed in this work. The detection bandwidths with full-width at half-maximum are 5.9–7.0, 9.1–11.2, and 12.2–16.9 μm, which cover the major portion or entire range of the three atmospheric blocking bands: the water band (5.5–7.5 μm), the ozone band (9.4–9.9 μm), and the carbon dioxide band (14–16 μm). Values of the dark-current detectivity were found to be D*=8.5×1012 cm Hz1/2/W at T=40 K, Vb=−1.3 V, and λp=6.5 μm for the mid-wavelength infrared stack; D*=1.5×1010 cm Hz1/2/W at T=40 K, Vb=−1.4 V, and λp=10.1 μm for the long-wavelength infrared stack, and D*=1.2×1011 cm Hz1/2/W at T=30 K, Vb=−1.1 V, and λp=15.1 μm for the very long-wavelength infrared stack. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1415409
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  • 4
    Electronic Resource
    Electronic Resource
    Polarized electroabsorption spectra and light soaking of solar cells based on hydrogenated amorphous silicon (1998)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 72 (1998), S. 1060-1062 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We present grazing-incidence measurements of polarized electroabsorption spectra in p–i–n solar cells based on hydrogenated amorphous silicon (a-Si:H). We find a significantly stronger polarization dependence in the present measurements compared with earlier work based on electroabsorption detected using coplanar electrodes on a-Si:H thin films. We do not find any significant dependence of the polarized electroabsorption upon light soaking, although this effect was found in previous work with coplanar electrodes. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.120964
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  • 5
    Electronic Resource
    Electronic Resource
    Electroabsorption measurements and built-in potentials in amorphous silicon p–i–n solar cells (1996)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 69 (1996), S. 3063-3065 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We present a technique for using modulated electroabsorption measurements to determine the built-in potential in semiconductor heterojunction devices. The technique exploits a simple relationship between the second-harmonic electroabsorption signal and the capacitance of such devices. We apply this technique to hydrogenated amorphous silicon (a-Si:H)-based solar cells incorporating microcrystalline Si p+ layers. For one set of cells with a conventional plasma-deposited intrinsic (i) layer we obtain a built-in potential of 0.98±0.04 V; for cells with an i layer deposited using strong hydrogen dilution we obtain 1.25±0.04 V. We speculate that interface dipoles between the p+ and i layers significantly influence the built-in potential. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.116840
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  • 6
    Electronic Resource
    Electronic Resource
    A new low-cost high-performance quartz tuning-fork temperature sensor (2003)
    Bradford : Emerald
    Sensor review 23 (2003), S. 134-142 
    Details
    ISSN: 0260-2288
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: This paper describes a new method designed for a quartz tuning-fork temperature sensor. This sensor is designed with a new cut ZYtw(115°/15°) and it is shown that this worked best in flexural vibration mode. The way for raising signal to noise ratio and reducing equivalent resistor of the sensor were analyzed in theory. A manufacturing method has been determined to form and adjust the precise frequency, which could improve sensitivity and reduce non-linearity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/02602280310468242
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  • 7
    Electronic Resource
    Electronic Resource
    A donor–acceptor compound composed of a dinuclear zinc(II) complex of a Robson macrocycle with 8-methylquinoline (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. 1429-1430 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: A donor–acceptor compound, diaqua-1κO,2κO-[μ-11,23-dimethyl-3,7,15,19-tetraazatricyclo[19.3.1.19,13]hexacosa-1(25),2,7,9,11,13(26),14,19,21,23-decaene-25,26-diolato-1κ4N3,N7,O25,O26:2κ4N15,N19,O25,O26]dizinc(II) diperchlorate bis(8-methylquinoline) ethanol disolvate, [Zn2(C24H26N4O2)(H2O)2](ClO4)2·2C10H9N·2C2H6O, obtained by the reaction of a dinuclear zinc(II) complex of a Robson macrocycle (acceptor) and 8-methylquinoline (donor), lies about an inversion centre and the coordination about the unique Zn atom is a distorted square pyramid. The fifth coordination site is occupied by the water molecule, Zn—O = 2.016 (2) Å, and the average macrocyclic Zn—O and Zn—N distances are 2.059 (6) and 2.059 (3) Å, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100012373
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  • 8
    Electronic Resource
    Electronic Resource
    Study on Abilities of Mineral Admixtures and Geopolymer to Restrain ASR (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 302-303 (Jan. 2006), p. 248-254 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: This paper deals with the effect of mineral admixtures and Geopolymer on preventingexcessive expansion due to alkali-silica reaction (ASR). The test method used was ASTM C 441-97. Expansions of mortar-bars were measured at 14, 56, 90 days. The results prove that mineral admixtures can effectively restrain ASR. When three kinds of mineral admixtures, silica fume, fly ash, and ground granulated blast-furnace slag (GGBS), were used together, they bring about a compound effect which is more effective to restrain ASR. Mortar expansion can be reduced 81.9 %by this compound effect. Chemical analysis of the pore solution shows that mineral admixtures reduced concentrations of hydroxyl, potassium and sodium ion, so that damages from ASR decreases. Geopolymer, an amorphous inorganic material, was prepared with metakaolin and other mineral admixtures in the condition of high pH. Alkalis fixed in the framework of Geopolymer, there are no enough alkalis to react with active aggregates. Geopolymer does not generate any dangerous alkali-silica reaction even with alkali contents as high as 12.1 %
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/50/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.302-303.248.pdf
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  • 9
    Electronic Resource
    Electronic Resource
    Determination of preferred orientation degree of portlandite by using rocking curve of diffraction line (1988)
    Springer
    Materials and structures 21 (1988), S. 329-335 
    Details
    ISSN: 1359-5997
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Abstract It is pointed out by theoretical analyses that calculating the preferred orientation degree of portlandite within the interfacial zone between cement paste and the aggregate, according to the currently accepted formula, can only be used as a qualitative method. The authors propose a method using the rocking curve of the diffraction line for determining the preferred orientation degree of portlandite and obtaining more precise results. This method can be used as a quantitative one.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02472158
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  • 10
    Electronic Resource
    Electronic Resource
    Isolation of new nonsense and frameshift mutants in the immunoglobulin μ heavy-chain gene of hybridoma cells (1993)
    Springer
    Somatic cell and molecular genetics 19 (1993), S. 313-320 
    Details
    ISSN: 1572-9931
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract In order to expand the experimental material available for genetic and biochemical analyses of the natural immunoglobulin genes, we have isolated a variety of mutant mouse hybridoma cell lines. Some of these mutants have partial or complete deletions of the μ gene. Other mutants have nonsense or frameshift mutations in the exons encoding the variable and the second and third constant region domains of the μ heavy chain. When combined with earlier mutant data, this collection of genotypically and phenotypically tight mutants of known sequence spans most of the 10 kb of the μ gene, providing material for a variety of studies of genetic recombination and mRNA metabolism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01232744
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