scholarly journals Power amplification via compliant layer interdigitation and dielectrophoretic structuring of PZT particle composites

2020 ◽  
Vol 29 (7) ◽  
pp. 075004 ◽  
Author(s):  
Zachary R Pessia ◽  
Craig A Cunningham ◽  
E D Krech ◽  
E A Friis
Keyword(s):  
Power Amplification ◽  
Compliant Layer

Jumping, Climbing and Suspensory Locomotion

2018 ◽  
Keyword(s):  
Energy Storage ◽  
Elastic Energy ◽  
The Core ◽  
Power Amplification ◽  
Core Concepts

Jumping, climbing and suspensory locomotion are specialized locomotor mechanisms used on land and in the air. Jumping is used for rapid launches from substrates. Climbing and suspensory movements enable locomotion up, under and through vertically-structured habitats, such as forests. Elastic energy storage is particularly important for jumping and catapult systems and we address the core concepts of power amplification that are exemplified in nature’s extreme jumpers. We examine the diverse mechanisms of attachment that characterize animals that can grasp and adhere to a diversity of structures. We conclude the chapter by examining the integration of biological capabilities with engineering innovations in these systems.

scholarly journals Large Power Amplification in Magneto‐Mechano‐Electric Harvesters through Distributed Forcing

2020 ◽  
Vol 10 (8) ◽  
pp. 1903689 ◽  
Author(s):  
Rammohan Sriramdas ◽  
Min‐Gyu Kang ◽  
Miao Meng ◽  
Mehdi Kiani ◽  
Jungho Ryu ◽  
...  
Keyword(s):  
Large Power ◽  
Power Amplification

scholarly journals Residual Stress Measurements in Mo/CuCrZr Tiles Using Neutron Diffraction

2008 ◽  
Vol 59 ◽  
pp. 299-303
Author(s):  
K. Mergia ◽  
Marco Grattarola ◽  
S. Messoloras ◽  
Carlo Gualco ◽  
Michael Hofmann
Keyword(s):  
Residual Stress ◽  
Finite Element ◽  
Neutron Diffraction ◽  
Residual Stresses ◽  
Heat Sink ◽  
High Yield ◽  
Fusion Reactors ◽  
Plasma Facing Components ◽  
Induced Stresses ◽  
Compliant Layer

In plasma facing components (PFC) for nuclear fusion reactors tungsten or carbon based tiles need to be cooled through a heat sink. The joint between the PFC and the heat sink can be realized using a brazing process through the employment of compliant layer of either a low yield material, like copper, or a high yield material, like molybdenum. Experimental verification of the induced stresses during the brazing process is of vital importance. Strains and residual stresses have been measured in Mo/CuCrZr brazed tiles using neutron diffraction. The strains and stresses were measured in Mo tile along the weld direction and at different distances from it. The experimental results are compared with Finite Element Simulations.

A Study on Pulse-Width-Modulation-Based Power Amplification for Underwater Acoustic OFDM

2016 ◽  
Vol 41 (3) ◽  
pp. 656-669 ◽  
Author(s):  
Hao Zhou ◽  
Xiaoka Xu ◽  
Li Wei ◽  
Shengli Zhou ◽  
Jun-Hong Cui
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Underwater Acoustic ◽  
Power Amplification

Simulation and design of SiGe HBTs for power amplification at 10 GHz

2002 ◽  
Vol 46 (10) ◽  
pp. 1485-1493 ◽  
Author(s):  
D Todorova ◽  
N Mathur ◽  
K.P Roenker
Keyword(s):  
Power Amplification

Evolution of the Mechanical Properties of the Surface Layers of Aluminum Alloys under the Conditions of Sliding Friction

2021 ◽  
Vol 901 ◽  
pp. 219-225
Author(s):  
Elena V. Torskaya ◽  
Alexey M. Mezrin
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloys ◽  
Sliding Friction ◽  
Surface Layers ◽  
Before And After ◽  
Wear And Tear ◽  
Friction Path ◽  
Compliant Layer

Mechanical properties of surface layers of aluminum alloys before and after friction tests are studied by nanoindentation. The influence of the composition of the alloys on these properties is analyzed. It is obtained that as a result of wear and tear, relatively compliant layer is formed on the surface of one of the alloys. Another sample demonstrates relatively rigid film at the surface of the friction path. Conclusions about different mechanisms of the wear and tear of alloys are made based on the analysis.

Noiseless independent signal and power amplification

1998 ◽  
Vol 23 (7) ◽  
pp. 540 ◽  
Author(s):  
E. H. Huntington ◽  
P. K. Lam ◽  
T. C. Ralph ◽  
D. E. McClelland ◽  
H.-A. Bachor
Keyword(s):  
Power Amplification
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