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  • 1
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    Plant Selection for Bioretention Systems and Stormwater Treatment Practices (2021)
    Springer Nature
    Details
    Publication Date: 2024-03-30
    Description: Landscape/Regional and Urban Planning; Water Quality/Water Pollution; Hydrology/Water Resources; Urban Ecology
    Keywords: Landscape/Regional and Urban Planning ; Water Quality/Water Pollution ; Hydrology/Water Resources ; Urban Ecology ; thema EDItEUR::K Economics, Finance, Business and Management::KC Economics::KCV Economics of specific sectors::KCVG Environmental economics ; thema EDItEUR::R Earth Sciences, Geography, Environment, Planning ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TQ Environmental science, engineering and technology::TQK Pollution control
    Language: English
    Format: image/jpeg
    Format: image/jpeg
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    E-BOOK
  • 2
    Electronic Resource
    Electronic Resource
    Analysis of Bleustein–Gulyaev wave propagation under thin periodic metal electrodes (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 70 (1991), S. 594-602 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Bleustein–Gulyaev (BG) piezoelectric surface-wave propagation under a periodic metal-strip grating on piezoelectric cubic crystals is investigated. A general theory that fits both the elastic and electric periodic boundary conditions has been developed and is applicable to a grating with an arbitrary electrical connection between adjacent metal strips. Numerical examples are given for aluminum- and gold-shorted gratings on a gallium arsenide substrate. It is found that the BG waves which penetrate deep into the substrate in the absence of the metal grating become trapped at the surface when the grating is present. It is noted that the penetration depth is heavily dependent on the metal thickness. The relevant physical attributes of the wave such as particle displacement, electric potential, and dispersion are also computed and analyzed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.350361
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Comment on "Surface acoustic wave properties of aluminum gallium arsenide'' [J. Appl. Phys. 66, 90 (1989)] (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 2688-2688 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The conclusions reached in the previous work [Steel et al., J. Appl. Phys. 66, 90 (1989)] are essentially correct, but are in error in that exponents of four and two should not have been used in Eqs. (31) and (32), respectively. The effect on power reduction requirements to achieve a given surface acoustic wave electrical potential are thus proportional to the coupling coefficient (k2 ) ratio for the two materials being compared, rather than the square of the coupling coefficient ratio. Additionally, factors reflecting other differences in properties for different substrate materials or materials systems are included in the modified result. Finally, it is observed that the expressions derived do not necessarily allow the performance of acoustic charge transport (ACT) devices to be determined, but do allow such estimates to be made for heterostructure ACT (HACT) devices.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.348667
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  • 4
    Electronic Resource
    Electronic Resource
    Light diffraction by Bleustein–Gulyaev surface acoustic waves in piezoelectric cubic crystals (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 1985-1992 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An analytical solution to the boundary-value problem for the existence of a Bleustein–Gulyaev piezoelectric surface acoustic wave in GaAs and other piezoelectric cubic crystals is presented. Numerical solutions for Bleustein–Gulyaev waves in a number of crystals of 4¯3m and 23 symmetry classes are also presented. These include commonly used materials such as GaAs, GaP, InSb, InAs, Bi12GeO20, and Bi4Ge3O12. The results are then used to investigate light diffraction by Bleustein–Gulyaev waves in GaAs. Both plane-wave acousto-optic and guided-optical-wave interaction cases are considered. Numerical solution for a guided-wave acousto-optic collinear interaction in a GaAs-GaAlAs waveguide is presented and discussed. In addition, a simple method of Bleustein–Gulyaev wave detection using optical techniques is developed and illustrated through numerical calculations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347154
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  • 5
    Electronic Resource
    Electronic Resource
    Study of surface acoustic waves on the {110} plane of gallium arsenide (1992)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 71 (1992), S. 597-605 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Piezoelectric semiconductors such as GaAs are of interest for signal processing devices due to the possibility of monolithic integration of surface-acoustic-wave (SAW) -based devices and active electronic circuits on the same substrate. The common crystal orientation of GaAs for these applications has been the {100} cut. In this paper the characteristics of surface wave propagation in the {110} plane of GaAs, which supports both the Rayleigh and the Bleustein–Gulyaev surface wave modes, are investigated. Several test devices have been fabricated and studied using laser probe and S-parameter measurement techniques. The SAW velocity, attenuation, piezoelectric coupling constant, slowness surface, beam profile, and the transducer characteristics have been measured, and the experimental results agree well with the theoretical calculations for both types of the surface wave modes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.350412
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  • 6
    Electronic Resource
    Electronic Resource
    A synopsis of surface acoustic wave propagation on {100}-cut 〈110〉-propagating gallium arsenide (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 1936-1941 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We present the results of a series of calculations predicting surface acoustic wave (SAW) beam profile propagation in the 〈110〉 direction on {100}-cut GaAs. These calculations utilize an experimentally verified angular spectrum of plane waves diffraction theory computer program with experimentally determined GaAs slowness surface data. These data are presented in such a way that they should be particularly useful to designers of acoustic charge transport (ACT) devices, by enabling appropriate choice of ACT channel widths for given delay line lengths and SAW transducer apertures. Further, these calculations show that ACT filters which rely on apodization to determine tap weights will suffer transfer function distortion, alternatively interpreted as reduction of dynamic range, compared to ACT filters in which charge sensing is accomplished by taps extending fully across the channel and employing tap weighting external to the channel; this problem is observed to grow in acuteness with delay line length.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.348765
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  • 7
    Electronic Resource
    Electronic Resource
    An analysis of surface acoustic wave propagation in a piezoelectric film over a GaAs/AlGaAs heterostructure (1992)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 71 (1992), S. 2136-2142 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: This paper presents a theoretical analysis of the surface acoustic wave (SAW) propagation in a GaAs/AlGaAs heterostructure covered with a piezoelectric film such as ZnO, BaTiO3, PbTiO3 or PZT. We calculate the SAW potential profile, SAW velocity, and effective piezoelectric coupling constant as functions of the film thickness using a Laguerre polynomial technique. The effective material constants such as the characteristic admittance and equivalent dielectric constant are also obtained. We concentrate on the suitable choice of the film for a heterojunction acoustic charge transport device. A ZnO film of 0.3–0.5 acoustic wavelength thickness seems to be the most suitable choice.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.351136
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  • 8
    Electronic Resource
    Electronic Resource
    Acoustic fields and velocities for surface-acoustic-wave propagation in multilayered structures: An extension of the Laguerre polynomial approach (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 4993-4997 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The propagation of surface acoustic waves (SAW) in multilayered structures is studied by using Laguerre polynomials. Field distributions and velocities are obtained easily by this simple and noniterative method. Formulations are given for open- and short-circuit boundary conditions. The SAW velocity of a ZnO film on a Si substrate is calculated and the result is compared against other calculations from the literature. Numerical results are also given for GaAs/AlGaAs multilayered structures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347086
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  • 9
    Electronic Resource
    Electronic Resource
    Electronic structure of iron trifluoride (1973)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 95 (1973), S. 4517-4522 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00795a009
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  • 10
    Electronic Resource
    Electronic Resource
    Generalized valence bond description of simple alkanes, ethylene, and acetylene (1972)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 94 (1972), S. 8293-8301 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00779a002
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