World Library  

Other People Who Read Chaos : Channel erosion due to subsurface flow Also Read


 
  • Cover Image

Physics of Fluids : Evolution of convective patterns in a binary-m...

By: B. L. Smorodin, B. I. Myznikova, and J. C. Legros

Description: A theoretical study has been made of the convective stability and developed heat transfer regimes in a horizontal, binary-mixture layer with negative Soret coupling. The system is under temperature gradient and finite-frequency vibration. Both analytical and numerical examinations are presented. The limiting case of long-wave disturbances is studied using the perturbation method. To find instability thresholds in the linear approximation the Floquet theory i...

Read More
  • Cover Image

Biblioteca Hispanica : Secrets of Nature

By: Geronimo Cortes
Read More
  • Cover Image

Journal of Applied Physics : Raman spectra analysis for Ca(B1/3'B2...

By: M. S. Fu, X. Q. Liu, and X. M. Chen

Description: Ca[(Mg1/3Ta2/3)1−xTix]O3 (hereafter denoted as CMTT) and (Ca1−0.39xNd0.26x) [(Mg1/3Nb2/3)1−xTix]O3 (hereafter denoted as CNMNT) complex perovskite ceramics were studied by Raman spectroscopy combined with Rietveld analysis. The crystal structures changed from monoclinic structure with P21/c space group to orthorhombic structure with Pbnm space group for both systems. The main structure of the two systems was orthorhombic and the characteristic modes for the ...

Read More
  • Cover Image

Applied Physics Letters : Terahertz generation in multiple laser-i...

By: Meng-Ku Chen, Jae Hun Kim, Chia-En Yang, Stuart Shizhuo Yin, Rongqing Hui et al

Description: An investigation of the terahertz wave generation in multiple laser-induced air plasmas is presented. First, it is demonstrated that the intensity of the terahertz wave increases as the number of air plasmas increases. Second, the physical mechanism of this enhancement effect of the terahertz generation is studied by quantitatively measuring the intensity of the generated terahertz wave as a function of phase difference between adjacent air plasmas. It is fo...

Read More
  • Cover Image

Chaos : Stability diagram for the forced Kuramoto model

By: Lauren M. Childs and Steven H. Strogatz

Description: We analyze the periodically forced Kuramoto model. This system consists of an infinite population of phase oscillators with random intrinsic frequencies, global sinusoidal coupling, and external sinusoidal forcing. It represents an idealization of many phenomena in physics, chemistry, and biology in which mutual synchronization competes with forced synchronization. In other words, the oscillators in the population try to synchronize with one another while al...

Read More
  • Cover Image

Journal of Applied Physics : Relaxation time effects on dynamic co...

By: D. J. Shelton, T. Sun, J. C. Ginn, K. R. Coffey, and G. D. Boreman

Description: The behavior of nanoscale infrared antenna elements depends upon the dynamic conductivity of thin metallic films. Spectroscopic ellipsometer measurements of noble metal films show that when the product of the incident radiation frequency and the relaxation time is greater than unity, anomalous dynamic electron transport effects occur. In this regime electron scattering increases the conductivity of alloyed metallic films as demonstrated by ellipsometry measu...

Read More
  • Cover Image

Journal of Mathematical Physics : Ice-water and liquid-vapor phase...

By: Mauro Fabrizio

Description: A model for the first order phase transitions as ice-water and liquid-vapor is proposed using the Ginzburg–Landau equation for the order parameter φ. In this model the density ρ is composed of two quantities ρ0 and ρ1 such that 1/ρ = 1/ρ0+1/ρ1, where ρ1 is strictly connected to the order parameter φ. By means of this decomposition, we are able to represent the Andrew diagram without the use of the heuristic van der Waals equation.

Read More
  • Cover Image

Chaos : Synchronization of chaotic systems with uncertain chaotic ...

By: Zheng-Ming Ge and Cheng-Hsiung Yang

Description: We study the synchronization of general chaotic systems which satisfy the Lipschitz condition only, with uncertain chaotic parameters by linear coupling and pragmatical adaptive tracking. The uncertain parameters of a system vary with time due to aging, environment, and disturbances. A sufficient condition is given for the asymptotical stability of common zero solution of error dynamics and parameter update dynamics by the Ge–Yu–Chen pragmatical asymptotical...

Read More
  • Cover Image

Biblioteca Hispanica : Compendium of Natural His

By: Thomas Ortiz De Urbina
Read More
  • Cover Image

Chaos : From bouncing to boxing

By: D. Terwagne, T. Gilet, N. Vandewalle, and S. Dorbolo

Description:

Read More
  • Cover Image

Journal of Applied Physics : Microwave dielectric and Raman scatte...

By: K. Sudheendran, K. C. James Raju, Manoj K. Singh, and Ram S. Katiyar

Description: Bismuth zinc niobate (Bi1.5Zn1.0Nb1.5O7) thin films were deposited on fused silica substrates by pulsed laser deposition. Its phase composition and microstructure were characterized by x-ray diffraction and atomic force microscopy. The as deposited films were amorphous and all of them were crystallized after a postdeposition annealing at 600 °C for 30 min in air. The crystallite size of the films was found to be varying between 31 and 60 nm with respect to t...

Read More
  • Cover Image

Journal of Applied Physics : Mechanical behavior of stressed films...

By: Conal E. Murray and K. L. Saenger

Description: The effects of stressed thin films on substrates that possess anisotropic elasticity have been measured and modeled. Substrate curvature induced by a uniform, stressed film will be axisymmetric for substrates possessing greater than twofold in-plane symmetry, and anisotropic for twofold symmetric substrates. For a (011) Si substrate, the difference between the curvature along the 〈110〉 and 〈100〉 principal axes varies by approximately 47%. A simple, analytica...

Read More
  • Cover Image

Applied Physics Letters : Influence of polarity on carrier transpo...

By: Yoshinobu Kawaguchi, Chia-Yen Huang, Yuh-Renn Wu, Qimin Yan, Chih-Chien Pan et al

Description: We investigate the influence of polarity on carrier transport in single-quantum-well and multiple-quantum-well (MQW) light-emitting diodes (LEDs) grown on the semipolar (20¯21) and (20¯21) orientations of free-standing GaN. For semipolar MQW LEDs with the opposite polarity to conventional Ga-polar c-plane LEDs, the polarization-related electric field in the QWs results in an additional energy barrier for carriers to escape the QWs. We show that semipolar (20...

Read More
  • Cover Image

Physics of Fluids : Circulation and energy of the leading vortex r...

By: L. Gao, S. C. M. Yu, J. J. Ai, and A. W. K. Law

Description: The gravity-driven starting jet characteristics over the range of Reynolds numbers from 1179 to 10 611 have been investigated using planar laser induced fluorescence and particle image velocimetry. Of the 17 cases investigated, pinch off for the leading vortex was found to appear at Reynolds number above 3000. For those cases involving pinch off, limiting values for the nondimensional circulation for the leading vortex could be identified at around 1.26 and ...

Read More
  • Cover Image

The Journal of Chemical Physics : Constructing explicit magnetic a...

By: Jacob D. Stevenson, Aleksandra M. Walczak, Randall W. Hall, and Peter G. Wolynes

Description: By defining a spatially varying replica overlap parameter for a supercooled liquid referenced to an ensemble of fiducial liquid state configurations, we explicitly construct a constrained replica free energy functional that maps directly onto an Ising Hamiltonian with both random fields and random interactions whose statistics depend on the liquid structure. Renormalization group results for random magnets when combined with these statistics for the Lennard-...

Read More
  • Cover Image

Physics of Fluids : Viscous jet drawing air into a bath

By: Etienne Reyssat, Elise Lorenceau, Frédéric Restagno, and David Quéré

Description:

Read More
  • Cover Image

Journal of Applied Physics : Influence of substrate microstructure...

By: R. D. Levi, M. M. Samantaray, S. Trolier-McKinstry, and C. A. Randall

Description: The temperature dependence of the electrical leakage current density of chemical solution deposited BaTiO3 films on high purity Ni foils was investigated as function of the underlying Ni microstructure. Depending on the Ni heat treatment prior to BaTiO3 deposition, it was found that pores in the dielectric followed the profiles of the underlying Ni grain boundary grooves. The electrical properties were then characterized on capacitors with and without the pr...

Read More
  • Cover Image

Applied Physics Letters : Field emission from graphene based compo...

By: Goki Eda, H. Emrah Unalan, Nalin Rupesinghe, Gehan A. Amaratunga, and Manish Chhowalla

Description: Field emission from graphene is challenging because the existing deposition methods lead to sheets that lay flat on the substrate surface, which limits the field enhancement. Here we describe a simple and general solution based method for the deposition of field emitting graphene/polymer composite thin films. The graphene sheets are oriented at some angles with respect to the substrate surface leading to field emission at low threshold fields ( ∼ 4 V μm−1). ...

Read More
  • Cover Image

Biblioteca Hispanica : Opening Address at the Real Seminario De Ve...

By: Luis Sanchez De Toca
Read More
  • Cover Image

Journal of Mathematical Physics : Classical limit for semirelativi...

By: Gonca L. Aki, Peter A. Markowich, and Christof Sparber

Description: We consider the three-dimensional semirelativistic Hartree model for fast quantum mechanical particles moving in a self-consistent field. Under appropriate assumptions on the initial density matrix as a (fully) mixed quantum state we prove by using Wigner transformation techniques that its classical limit yields the well known relativistic Vlasov–Poisson system. The result holds for the case of attractive and repulsive mean-field interactions, with an additi...

Read More
 
1
|
2
|
3
Records: 1 - 20 of 45 - Pages: 



Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.