Results 21 to 30 of about 671 (237)
Radio Physics and Radio Astronomy, 2015 A problem of electromagnetic wave excitation by finite-dimensional material bodies located in an arbitrary electrodynamic volume was formulated. The problem was reduced to solution of two-dimensional integral equations for electrical surface currents on ...
S. L. Berdnik +3 more
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Mechanical Impedance Methods in Vibration [PDF]
Nature, 1959 Colloquium on Mechanical Impedance Methods for Mechanical Vibrations Presented at the ASME Annual Meeting, New York, N.Y., December 2, 1958. Edited by R. Plunkett. (Sponsored by Shock and Vibrating Committee: Applied Mechanics Division.) Pp. vi + 145. (New York: The American Society of Mechanical Engineers, 1958.) 5.50 dollars.
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Theoretical and simulation analysis of piezoelectric liquid resistance captor filled with pipeline
Materials Research Express, 2018 This paper designs a kind of Piezoelectric liquid resistance capture energy device, by using the superposition theory of the sheet deformation, the calculation model of the displacement curve of the circular piezoelectric vibrator and the power ...
Li Zheng +5 more
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Radiation impedance of torsionally vibrating seismic sources [PDF]
Geophysics, 1983 Abstract The radiation impedance of a circular disk vibrating torsionally on an anelastic half-space has resonance peaks with a spacing that is a function of the ratio between baseplate radius and seismic wavelength. The presence of a surface layer produces an impedance curve which oscillates around the half-space response.
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Average Mechanical Impedance for Random Vibration [PDF]
The Journal of the Acoustical Society of America, 1972 The response of a system to a random stationary process applied at selected points of a mechanical structure is readily formulated in terms of the mechanical impedance matrix of these points. However, in practice the results suffer from many uncertainties: uncertainties in the measurements of the mechanical impedances; uncertainties in the boundary ...
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Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2014 Acoustic transducers with large radiation surfaces are used to handle planar object without any physical contact. To more accurately describe the dynamic performance of such transducer with strong coupling effect due to the large lateral scales, a ...
Jin LI, Pinkuan LIU, Han DING
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FEBS Open Bio, EarlyView.TisIBP8, a fungal‐derived hyperactive ice‐binding protein, helps Caenorhabditis elegans survive dehydration. It localizes near cell membranes, reduces cell damage, and helps maintain membrane structure during drying. These results suggest that ice‐binding proteins can protect cells from dehydration stress as well as freezing stress.
Daiki Shimose +9 more
wiley +1 more source
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
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Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
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Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing
Advanced Engineering Materials, EarlyView.This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu +10 more
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