Propagation Analysis and Antenna Miniaturization on a Magneto-dielectric Composite Substrate by Manipulating the Permeability and the Permittivity

2015 ◽  
Vol 65 (2) ◽  
pp. 135-140
Author(s):  
Jinu KIM ◽  
Ki Hyeon KIM*
Keyword(s):  
Antenna Miniaturization ◽  
Dielectric Composite ◽  
Composite Substrate ◽  
Propagation Analysis

A Knowledge based Tool for Failure Propagation Analysis

1989 ◽  
Author(s):  
P.S. Ness ◽  
D. Bereket ◽  
M. Hakimi ◽  
T. Uthus ◽  
A. Chakravarty
Keyword(s):  
Knowledge Based ◽  
Propagation Analysis ◽  
Failure Propagation

Refactoring Generic Instantiations Based on Type Propagation Analysis

2009 ◽  
Vol 20 (10) ◽  
pp. 2617-2627 ◽  
Author(s):  
Lin CHEN ◽  
Bao-Wen XU ◽  
Ju QIAN ◽  
Tian-Lin ZHOU ◽  
Yu-Ming ZHOU
Keyword(s):  
Propagation Analysis

scholarly journals Integrated Magnetohydrodynamic Pump with Magnetic Composite Substrate and Laser-Induced Graphene Electrodes

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1113
Author(s):  
Mohammed Asadullah Khan ◽  
Jürgen Kosel
Keyword(s):  
Magnetic Flux ◽  
Flow Rate ◽  
Magnetic Composite ◽  
Propulsive Force ◽  
Closed Channel ◽  
Lab On Chip ◽  
Composite Substrate ◽  
On Chip ◽  
High Level ◽  
Moving Parts

An integrated polymer-based magnetohydrodynamic (MHD) pump that can actuate saline fluids in closed-channel devices is presented. MHD pumps are attractive for lab-on-chip applications, due to their ability to provide high propulsive force without any moving parts. Unlike other MHD devices, a high level of integration is demonstrated by incorporating both laser-induced graphene (LIG) electrodes as well as a NdFeB magnetic-flux source in the NdFeB-polydimethylsiloxane permanent magnetic composite substrate. The effects of transferring the LIG film from polyimide to the magnetic composite substrate were studied. Operation of the integrated magneto hydrodynamic pump without disruptive bubbles was achieved. In the studied case, the pump produces a flow rate of 28.1 µL/min. while consuming ~1 mW power.

scholarly journals Acoustic cavities in 2D heterostructures

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Maxim K. Zalalutdinov ◽  
Jeremy T. Robinson ◽  
Jose J. Fonseca ◽  
Samuel W. LaGasse ◽  
Tribhuwan Pandey ◽  
...  
Keyword(s):  
Sound Propagation ◽  
Phonon Scattering ◽  
Frequency Comb ◽  
Material Interfaces ◽  
Low Frequencies ◽  
Strongly Coupled ◽  
Propagation Analysis ◽  
Acoustic Cavities ◽  
Ab Initio Approach ◽  
Spatiotemporal Response

AbstractTwo-dimensional (2D) materials offer unique opportunities in engineering the ultrafast spatiotemporal response of composite nanomechanical structures. In this work, we report on high frequency, high quality factor (Q) 2D acoustic cavities operating in the 50–600 GHz frequency (f) range with f × Q up to 1 × 1014. Monolayer steps and material interfaces expand cavity functionality, as demonstrated by building adjacent cavities that are isolated or strongly-coupled, as well as a frequency comb generator in MoS2/h-BN systems. Energy dissipation measurements in 2D cavities are compared with attenuation derived from phonon-phonon scattering rates calculated using a fully microscopic ab initio approach. Phonon lifetime calculations extended to low frequencies (<1 THz) and combined with sound propagation analysis in ultrathin plates provide a framework for designing acoustic cavities that approach their fundamental performance limit. These results provide a pathway for developing platforms employing phonon-based signal processing and for exploring the quantum nature of phonons.

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