Theoretical and experimental method to determine the effective coupling coefficients in (N+l)GTWave fibers

2018 ◽  
Author(s):  
A.V. Bochkov ◽  
A.N. Slobozhanin ◽  
M.G. Slobozhanina ◽  
D.V. Khmelnitsky
Keyword(s):  
Experimental Method ◽  
Coupling Coefficients ◽  
Effective Coupling

Method for determination of effective coupling coefficients in (1 + 1)GTWave fibers

2018 ◽  
Vol 45 ◽  
pp. 363-367
Author(s):  
Mariya G. Slobozhanina ◽  
Anton N. Slobozhanin ◽  
Alexander V. Bochkov ◽  
Dmitry V. Khmelnitsky
Keyword(s):  
Coupling Coefficients ◽  
Effective Coupling

The impact of laterally coupled grating microstructure on effective coupling coefficients

2010 ◽  
Vol 21 (13) ◽  
pp. 134015 ◽  
Author(s):  
R Millett ◽  
K Hinzer ◽  
A Benhsaien ◽  
T J Hall ◽  
H Schriemer
Keyword(s):  
Coupling Coefficients ◽  
Effective Coupling ◽  
The Impact

Properties of Three Phase Magneto-Electro-Thermo-Elastic Composites

2019 ◽  
Vol 969 ◽  
pp. 9-15
Author(s):  
Hardik Patel ◽  
Pavan Kumar Penumakala ◽  
Dhruv Patel
Keyword(s):  
Magnetoelectric Effect ◽  
Epoxy Composite ◽  
Effective Property ◽  
New Product ◽  
Longitudinal Direction ◽  
Coupling Coefficients ◽  
Effective Coupling ◽  
Property Variation ◽  
Three Phase ◽  
Elastic Composites

Three phase composites that consists of piezoelectric and piezomagnetic fibers embedded inan elastic matrix phase exhibits new product properties such as magnetoelectric effect, pyroelectric andpyromagnetic effect, which are absent in individual phases. In this work, simple analytical expressionsare developed based on strength of materials approach to find these effective coupling coefficients. In amicro scale rectangular representative volume element (RVE) of a layered type three phase composite,series connectivity is assumed between fiber and matrix layers along transverse direction and parallelconnectivity is assumed along longitudinal direction. The analytical model is validated with otherhomogenisation methods and effective property variation of BaTiO3-CoFe2O4-Epoxy composite andLiNbO3-CoFe2O4- Epoxy composite are discussed.

Magnetomechanical Properties of Circumferentially Field-Annealed Metglas® 2605SC Cylinders

1994 ◽  
Vol 360 ◽  
Author(s):  
J. B. Restorff ◽  
M. Wun-Fogle ◽  
A. E. Clark ◽  
Thu-Van T. Luu
Keyword(s):  
Coupling Coefficient ◽  
Longitudinal Mode ◽  
Bias Field ◽  
Coupling Coefficients ◽  
Effective Coupling ◽  
Impedance Measurements ◽  
Annealing Temperatures ◽  
Large Numbers ◽  
Demagnetizing Factor ◽  
A Current

AbstractWe have measured the magnetomechanical coupling coefficient of Metglas®2605SC (Fe81B13.5C2) ribbons that were annealed into 1.27 and 0.8 cm diameter cylinders. Lengths ranged from 0.6 to 5 cm. A novel furnace was constructed in which a cylindrical magnetic field was supplied by a current carrying copper rod. During the annealing, a 300 A current created a circumferential field of more than 6400 A/m. Annealing temperatures ranged from 380 to 420 ºC. Large shifts in both the optimum bias field and the coupling coefficient as a function of length and diameter were found due to demagnetizing effects. Impedance vs. frequency measurements show large numbers of modes, some of which are field dependent. Effective coupling coefficientsof the lowest order longitudinal mode were calculated from impedance measurements by using k2 = 1-f2r/f2a, where fr, and fa. are the resonant and antiresonant frequencies respectively. Coupling coefficients for 5 cm long cylinders were as high as 0.58. When the demagnetizing factor is taken into account, we find material coupling coefficients as high as 0.89.

Experimental Method in Antiquity.

1964 ◽  
Vol 19 (6) ◽  
pp. 419-419
Author(s):  
Frank P. Jones
Keyword(s):  
Experimental Method

Monitoring bedload sediment transport in a pre-Alpine river: an experimental method

2017 ◽  
Vol 43 ◽  
pp. 57-63 ◽  
Author(s):  
Monica Papini ◽  
Vladislav Ivov Ivanov ◽  
Davide Brambilla ◽  
Diego Arosio ◽  
Laura Longoni
Keyword(s):  
Sediment Transport ◽  
Experimental Method ◽  
Alpine River ◽  
Bedload Sediment

“I stay at work for you, you stay at home for us.” Does this Covid-19 campaign work for the youth in Asia?

2020 ◽  
Vol 8 (2) ◽  
pp. 161-175
Author(s):  
Jappy Fanggidae ◽  
Ridolof Batilmurik ◽  
Pieter Samadara
Keyword(s):  
Experimental Method ◽  
Social Distancing ◽  
Asian Context ◽  
The Relationship ◽  
At Home

This study investigated the relationship between guilt appeal and compliance with social distancing measures. We proposed that the relationship is double mediated by empathy and responsibility for the unfortunate people who have suffered from COVID-19. This research is novel to an extent as an experimental method is used in the Asian context. The results exhibited that guilt positively affected compliance with social distancing measures. The respondents were directly or indirectly compliant due to the emotions of empathy and responsibility. The theoretical and practical contributions of this study were presented.

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