To5 as a magnetization transfer contrast test object: characterization of the gels and determination of the real magnetization transfer

1996 ◽  
Vol 4 (3-4) ◽  
pp. 195-204 ◽  
Author(s):  
D. Gounot ◽  
Y. Mauss ◽  
J. Chambron
Keyword(s):  
Test Object ◽  
Magnetization Transfer ◽  
Magnetization Transfer Contrast ◽  
The Real

NOISE MEASUREMENTS FOR MATERIAL DIELECTRIC CHARACTERIZATION: APPLICATION TO A LIQUID CRYSTAL

2001 ◽  
Vol 01 (03) ◽  
pp. L125-L130 ◽  
Author(s):  
LEROY GÉRARD ◽  
GEST JOËL ◽  
TABOURIER PIERRE
Keyword(s):  
Liquid Crystal ◽  
Complex Permittivity ◽  
Dielectric Material ◽  
Voltage Noise ◽  
The Real ◽  
Dielectric Characterization ◽  
Noise Measurements

In this paper, we show how noise measurements can be used for the characterization of a dielectric material. This nonperturbative technique allows the determination of the real and imaginary parts of the complex permittivity from current and voltage noise measurements. This technique is illustrated hereafter for the case of an antiferroelectric liquid crystal.

Complex Permeability Measurements of Microwave Ferrites1

1996 ◽  
Vol 430 ◽  
Author(s):  
Richard G. Geyer ◽  
Jerzy Krupka
Keyword(s):  
Saturation Magnetization ◽  
Measurement Data ◽  
Accurate Method ◽  
Ring Resonators ◽  
Complex Permeability ◽  
Microwave Frequencies ◽  
The Real ◽  
Theoretical Predictions

AbstractA rigorous and accurate method for the experimental determination of the complex permeability of demagnetized ferrites at microwave frequencies is presented. The measurement uses low- loss dielectric ring resonators, is nondestructive, and allows complex permeability characterization of a single ferrite sample to be performed at frequencies from 2 GHz to 25 GHz. A wide variety of ceramic microwave ferrites having various compositions and differing saturation magnetizations were measured in the demagnetized state. Generally, at any frequency greater than gyromagnetic resonance, the real part of the complex permeability increases as saturation magnetization increases.For the same frequency magnetic losses increases as saturation magnetization increases. The real permeability results are compared with magnetostatic theoretical predictions. Measurement data show excellent agreement with theoretical predictions, but only when 2πγMs/ω < 0.75, where γ is the gyromagnetic ratio, Ms is saturation magnetization, and ω is the radian rf frequency.

Dynamic Characterization of a Highly Flexible Reticular Structure

1996 ◽  
Vol 2 (4) ◽  
pp. 431-446
Author(s):  
Francesco Petrone ◽  
Rosario Sinatra ◽  
Giuseppe Tedoldi
Keyword(s):  
Dynamic Behavior ◽  
Real System ◽  
Experimental Methodology ◽  
Dynamic Characterization ◽  
Unusual Behavior ◽  
The Real ◽  
Acceptable Accuracy ◽  
Reticular Structure

Structural analysis in the dynamic field appears a particularly valid methodology in evaluating the behavior of the constructional solutions to particularly complex systems. The experimental determination of a structure's dynamic response can allow the development of a mathematical model that is able to simulate, with acceptable accuracy, the dynamic behavior of the real system. The model, which characterizes the structure, can then be used to interpret variations in the dynamic behavior subsequently detected in the real system, or to simulate unusual behavior when the corresponding input parameters can be defined. The present paper gives an example of this experimental methodology, analyzing the dynamic behavior of the cantilever roof of Favorita Stadium in Palermo.

Characterization of Impressed Current Technique to Model Corrosion of Reinforcement in Concrete

2020 ◽  
Vol 11 (1) ◽  
pp. 93-99
Author(s):  
Abu Zakir Morshed ◽  
Sheikh Shakib ◽  
Tanzim Jahin
Keyword(s):  
Immersion Time ◽  
Chloride Content ◽  
Engineering Science ◽  
Coastal Regions ◽  
Faraday’S Law ◽  
Current Technique ◽  
Corrosion Cell ◽  
Impressed Current

Corrosion of reinforcement is an important durability concern for the structures exposed to coastal regions. Since corrosion of reinforcement involves long periods of time, impressed current technique is usually used to accelerate the corrosion of reinforcement in laboratories. Characterization of impressed current technique was the main focus of this research,which involved determination of optimum chloride content and minimum immersion time of specimens for which the application of Faraday’s law could be efficient. To obtain optimum chloride content, the electrolytes in the corrosion cell were prepared similar to that of concrete pore solutions. Concrete prisms of 200 mm by 200 mm by 300 mm were used to determine the minimum immersion time for saturation. It was found that the optimum chloride content was 35 gm/L and the minimum immersion time for saturation was 140 hours. Accounting the results, a modified expression based on Faraday’s law was proposed to calculate weight loss due to corrosion. Journal of Engineering Science 11(1), 2020, 93-99

The Determination of Sense via Deleuze and Blanchot: Paradoxes of the Habitual, the Immemorial, and the Eternal Return

2008 ◽  
Vol 2 (2) ◽  
pp. 155-177 ◽  
Author(s):  
Eugene Brently Young
Keyword(s):  
Eternal Return

Eternal return is the paradox that accounts for the interplay between difference and repetition, a dynamic at the heart of Deleuze's philosophy, and Blanchot's approach to this paradox, even and especially through what it elides, further illuminates it. Deleuze draws on Blanchot's characterisations of difference, forgetting, and the unlivable to depict the ‘sense’ produced via eternal return, which, for Blanchot, is where repetition implicates or ‘carries’ pure difference. However, for Deleuze, difference and the unlivable are also developed by the living repetition or ‘contraction’ of habit, which results in his distinctive characterization of ‘force’, ‘levity’, and sense in eternal return.

SEM/EDS Characterization of Uncommon Metal Whiskers and Determination of Underlying Growth Mechanisms

2018 ◽  
Author(s):  
D. Basak ◽  
L. H. Ponce
Keyword(s):  
Reliability Analysis ◽  
Case Studies ◽  
Whisker Growth ◽  
Innovation Systems ◽  
Growth Mechanisms ◽  
Crystal Oscillator ◽  
Analysis Laboratory ◽  
Investigative Techniques

Abstract Two case-studies on uncommon metals whiskers, performed at the Reliability Analysis Laboratory (RAL) of Northrop Grumman Innovation Systems, are presented. The components analyzed are an Oven Controlled Crystal Oscillator (OCXO) and an Electromechanical Relay. Investigative techniques were used to determine the chemical and physical makeup of the metal whiskers and develop an understanding of the underlying effects and mechanisms that caused the conditions conducive to whisker growth.

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