Results 221 to 230 of about 66,614 (249)
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ECS Transactions, 2018
The paper deals with the change of selected 3D parameters of the surface texture of ground steels after application of diffusion technologies. The steel CSN 41 2050 and 34CrNiMo6 after nitriding and ferritic nitrocarburizing in gas and plasma were evaluated.
David Dobrocký +5 more
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The paper deals with the change of selected 3D parameters of the surface texture of ground steels after application of diffusion technologies. The steel CSN 41 2050 and 34CrNiMo6 after nitriding and ferritic nitrocarburizing in gas and plasma were evaluated.
David Dobrocký +5 more
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Coupled integral equations for sound propagation above a hard ground surface with trench cuttings
The Journal of the Acoustical Society of America, 2006A set of coupled integral equations is formulated for the investigation of sound propagation from an infinitesimal harmonic line source above a hard ground surface corrugated with cuttings. Two half-space Green’s functions are employed in the formulation.
Gong Li, Wang +2 more
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Bulletin of the Seismological Society of America, 2023
ABSTRACT In the framework of site-specific seismic hazard assessment, the definition of reference motion is a crucial step. Reference motion is generally associated with hard-rock conditions, characterized by S-wave velocity exceeding 1500 m/s.
Hussein Shible +3 more
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ABSTRACT In the framework of site-specific seismic hazard assessment, the definition of reference motion is a crucial step. Reference motion is generally associated with hard-rock conditions, characterized by S-wave velocity exceeding 1500 m/s.
Hussein Shible +3 more
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Bulletin of the Seismological Society of America, 2023
ABSTRACTSite-specific seismic hazard assessment involves the prior knowledge of (1) the input ground motion at the local bedrock and (2) the site response. In this article and its companion, we address the deconvolution approach to obtain a reference ground-motion model, which consists of removing site effects from surface ground-motion recordings ...
Hussein Shible +3 more
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ABSTRACTSite-specific seismic hazard assessment involves the prior knowledge of (1) the input ground motion at the local bedrock and (2) the site response. In this article and its companion, we address the deconvolution approach to obtain a reference ground-motion model, which consists of removing site effects from surface ground-motion recordings ...
Hussein Shible +3 more
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24th European Microwave Conference, 1994, 1994
Ideally soft and hard surfaces can be obtained by transversely and longitudinally oriented conducting strips on a grounded dielectric slab, respectively. The importance of this kind of surfaces in antenna and propagation makes their accurate and simple electromagnetic expressions necessary.
Shuguang Chen, Makoto Ando, Naohisa Goto
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Ideally soft and hard surfaces can be obtained by transversely and longitudinally oriented conducting strips on a grounded dielectric slab, respectively. The importance of this kind of surfaces in antenna and propagation makes their accurate and simple electromagnetic expressions necessary.
Shuguang Chen, Makoto Ando, Naohisa Goto
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ASME 2008 International Manufacturing Science and Engineering Conference, Volume 1, 2008
Hard turning and grinding are competitive processes in many cases for manufacturing various mechanical products. Product performance is highly dependent on the process induced residual stresses. However, there exist some inconsistence regarding the true residual stress profiles generated by hard turning and grinding with and without the presence of a ...
Y B Guo
exaly +2 more sources
Hard turning and grinding are competitive processes in many cases for manufacturing various mechanical products. Product performance is highly dependent on the process induced residual stresses. However, there exist some inconsistence regarding the true residual stress profiles generated by hard turning and grinding with and without the presence of a ...
Y B Guo
exaly +2 more sources
Key Engineering Materials, 2005
For the purpose of investigating the effect of cutting edge truncation on ground surface morphology, several kinds of hard and brittle materials used for optical devices, borosilicate glass, glass quartz, crystal quartz and sapphire, are plunge ground with a SD600 metal-bonded grinding wheel, the cutting edges of which are truncated so as to be aligned
X. Kang +4 more
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For the purpose of investigating the effect of cutting edge truncation on ground surface morphology, several kinds of hard and brittle materials used for optical devices, borosilicate glass, glass quartz, crystal quartz and sapphire, are plunge ground with a SD600 metal-bonded grinding wheel, the cutting edges of which are truncated so as to be aligned
X. Kang +4 more
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The Journal of the Acoustical Society of America, 1990
Over the last several years a 2-D finite difference acoustic propagation program for finite amplitude interactions has been developed at the University of Illinois and USA-CERL. In this presentation the addition of the numerical coupling of the air to the hard surface and porous media models of the ground will be described.
Victor W. Sparrow, Richard Raspet
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Over the last several years a 2-D finite difference acoustic propagation program for finite amplitude interactions has been developed at the University of Illinois and USA-CERL. In this presentation the addition of the numerical coupling of the air to the hard surface and porous media models of the ground will be described.
Victor W. Sparrow, Richard Raspet
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IEEE Antennas and Propagation Society Symposium, 2004., 2004
This work gives a unified definition of the bandwidth for the soft and hard operations of periodic ground planes. The spectral FDTD technique is used to calculate the reflection coefficient on the entire wavenumber-frequency plane and soft and hard factors for TM and TE waves are found.
A. Aminian, Y. Rahmat-Samii
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This work gives a unified definition of the bandwidth for the soft and hard operations of periodic ground planes. The spectral FDTD technique is used to calculate the reflection coefficient on the entire wavenumber-frequency plane and soft and hard factors for TM and TE waves are found.
A. Aminian, Y. Rahmat-Samii
exaly +2 more sources
Ninth International Conference on Antennas and Propagation (ICAP), 1995
The bandwidth of the reflection coefficients are evaluated for conducting strips on a grounded dielectric and magnetic slab for the use as artificially soft and hard surfaces. The simple and closed form reflection coefficients developed by the authors are utilized in the numerical calculation.
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The bandwidth of the reflection coefficients are evaluated for conducting strips on a grounded dielectric and magnetic slab for the use as artificially soft and hard surfaces. The simple and closed form reflection coefficients developed by the authors are utilized in the numerical calculation.
openaire +1 more source