A new method for calculating local response in elastic media—the embedded unit cell approach

2014 ◽  
pp. 471-476
Author(s):  
M Grigorovitch ◽  
E Gal
Keyword(s):  
Unit Cell ◽  
New Method ◽  
Elastic Media ◽  
Local Response ◽  
Embedded Unit

The local response in structures using the Embedded Unit Cell Approach

2015 ◽  
Vol 157 ◽  
pp. 189-200 ◽  
Author(s):  
Marina Grigorovitch ◽  
Erez Gal
Keyword(s):  
Unit Cell ◽  
Local Response ◽  
Embedded Unit

Behaviour of a PVD unit cell under vacuum pressure and a new method for consolidation analysis

2020 ◽  
Vol 120 ◽  
pp. 103415 ◽  
Author(s):  
Jin-chun Chai ◽  
Hong-tao Fu ◽  
Jun Wang ◽  
Shui-Long Shen
Keyword(s):  
Unit Cell ◽  
New Method ◽  
Vacuum Pressure ◽  
Consolidation Analysis

scholarly journals Isolation Improvement Technique for Two Closely Spaced Loop Antennas Using MTM Absorber Cells

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Hongmin Lee ◽  
Hyungsup Lee
Keyword(s):  
Ring Resonator ◽  
Split Ring Resonator ◽  
Unit Cell ◽  
New Method ◽  
Negative Permittivity ◽  
Split Ring ◽  
Antenna Structure ◽  
Complementary Split Ring Resonator ◽  
Permittivity And Permeability ◽  
Loop Antennas

This paper presents a new method to improve isolation between two loop antennas with absorber cells exhibiting negative permittivity and permeability at the aimed frequency of 2.54 GHz. The metamaterial (MTM) unit cell was constructed by two open complementary split ring resonator (OCSRR) and a split ring resonator (SRR) arrangement. The proposed antenna structure consists of two loop antennas occupying a space with the dimensions of51 mm×24 mm×2 mmand three absorber cells. The size of each absorber unit cell is7.4 mm×7 mm×2 mm. The isolation of more than 20 dB was achieved with three absorber cells loaded between two loop antennas; interantenna spacing (center to center) is 0.23λ0at 2.54 GHz. The results show that port-to-port isolation between two antennas can be improved with absorber.

The Long Spacings of Rubber and Cellulose

1931 ◽  
Vol 4 (2) ◽  
pp. 213-218
Author(s):  
George L. Clark ◽  
Kenneth E. Corrigan
Keyword(s):  
Direct Measurement ◽  
Unit Cell ◽  
New Method ◽  
X Ray ◽  
Vulcanized Rubber ◽  
Air Space

Abstract 1. A new method for the examination of highly polymerized compounds is proposed. This consists in the direct measurement from diffraction interferences of colloidal micelle dimensions. 2. The construction of an instrument consisting of an x-ray tube with magnesium target and vacuum camera without intervening window or air space is described. 3. The major spacing of unstretched vulcanized rubber is found to be 99.3 A˚. U. 4. The number of isoprene molecules per unit cell is estimated to be of the order of eight thousand. 5. Three measurements of the long spacings of cellulose are recorded.

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