Wave Propagation in a Cylindrical Human Long Wet Bone

Abd-Alla, A. M.; Yahya, G. A.

doi:10.1166/jctn.2013.2765

Cited by 13 publications

(10 citation statements)

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“…where 1 is the intensity coupling coefficient, 1 denotes the fractional coupler intensity loss, 63 64 is the attenuation coefficient, n = 2 / represents the wave propagation number, 65 is the light field of the input wavelength, 66 and L = 2 R PANDA , where R PANDA is the radius of the PANDA system. 67 68 The electric field of the left ring of the PANDA system is expressed as 69…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Generating Highly Dark–Bright Solitons by Gaussian Beam Propagation in a PANDA Ring Resonator

Amiri¹,

Ali²

2014

j comput theor nanosci

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A novel system for generating dark-bright solitons is proposed. The system uses a PANDA ring resonator incorporated with an add/drop filter system. With resonant conditions, chaotic signals are generated from the through and drop ports of the PANDA system and then propagated in the add/drop filter system. Simulation results show that inputting Gaussian pulses in the system generates and controls highly dark-bright signals. To increase system capacity and obtain the required channel signals, we select 20, 100, and 400 m as the radii of the add/drop filter system. The central wavelength of input power is 1.55 m, by which ultrashort dark-bright soliton pulses are generated. The simulation results for the wavelength-dependent soliton pulses show full widths at half maximum (FWHMs) of 2.1, 0.42, and 0.11 nm, as well as free spectral ranges (FSRs) of 5.75, 1.15, and 0.29 nm. These values correspond to 20, 100, and 400 m, respectively. The simulated time-dependent soliton pulses have FWHMs of 8.1, 9.2, and 15.3 ps with a constant FSR of 25 ps. A maximum output power of 80 W can be obtained from the drop port of the PANDA system.

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Section: Theoretical Backgroundmentioning

confidence: 99%

Generating Highly Dark–Bright Solitons by Gaussian Beam Propagation in a PANDA Ring Resonator

Amiri¹,

Ali²

2014

j comput theor nanosci

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“…Mahmoud 5 6 investigated wave propagation in cylindrical poroelastic dry bones and the effect of the non-homogeneity on wave propagation on orthotropic elastic media. Mahmoud et al [7][8][9] investigated the effect of the rotation on plane vibrations in a * Author to whom correspondence should be addressed. transversely isotropic infinite hollow cylinder and effect of the rotation on wave motion through cylindrical bore in a micropolar porous cubic crystal.…”

Section: Introductionmentioning

confidence: 99%

On Problem of the Radial Vibrations in Non-Homogeneous Orthotropic Hollow Sphere Subject to the Initial Stress and Rotation

Mahmoud¹,

Abd-Alla²,

Al-Basyouni³

et al. 2014

Jnl of Comp & Theo Nano

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In the present article, the effect of the initial stress, rotation and non-homogeneity on the radial vibrations in orthotropic material is investigated. The elastodynamic equation is solved in terms of displacement. Three different boundary condition, namely the free surface is considered. The determination is concerned with the eigenvalues of the fundamental frequency of the radial vibrations. Numerical results are given and illustrated graphically for each case considered. Comparisons are made with the results in the absence of initial stress, rotation and non-homogeneity.

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“…Abd-Alla et al 5 investigated the effect of rotation on a non-homogenous orthotropic hollow elastic cylinder. Abd-Alla et al 6 studied the radial vibrations in a non-homogeneous orthotropic elastic hollow sphere subjected to rotation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Rotation on Mechanical Waves Propagation in a Dry Long Bone

Abd-Alla¹,

Abo‐Dahab²

2014

Jnl of Comp & Theo Nano

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The dynamic of a dry long bone that has been modeled as a hollow cylinder of crystal class 6 is investigated. This work presents the analytic solution of mechanical wave propagation in a long bone. A dry long bone is considered as a transversely isotropic hollow cylinder, for stress wave a flexural mode for n = 1 2. The frequency equation for dry bone is obtained when the boundaries are stress free and is examined numerically. Wave propagation in the intact bone model was first investigated and comparison was then made with a simplified geometry using dispersion curve of the cylinder tube. Then, the effect of rotation on the propagation characteristic was examined. It was shown that the dispersion curves of guided waves was significantly influenced by the rotation of the bone. The results indicate that the effect of rotation is very pronounced.

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Wave Propagation in a Cylindrical Human Long Wet Bone

Cited by 13 publications

References 0 publications

Generating Highly Dark–Bright Solitons by Gaussian Beam Propagation in a PANDA Ring Resonator

Generating Highly Dark–Bright Solitons by Gaussian Beam Propagation in a PANDA Ring Resonator

On Problem of the Radial Vibrations in Non-Homogeneous Orthotropic Hollow Sphere Subject to the Initial Stress and Rotation

Effect of Rotation on Mechanical Waves Propagation in a Dry Long Bone

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