Different amounts of nanoclay were incorporated into the acrylic resin matrix at 0, 1, 3, and 5 wt.% loadings. The coatings were applied on low carbon steel plates. Optical microscopy, sedimentation test, transmission electron microscopy, and X-ray diffraction were employed to investigate the dispersion of nanoclay in matrix. The corrosion resistance of coatings was evaluated by electrochemical...

Hybrid materials were prepared by mixing commercial polymers with micrometric metal powders. The polymer matrix used was low density polyethylene (LDPE). We have used aluminum spheres with the average diameter of 1 μm. The particle concentration in the matrix was varied from 0.5 wt.% to 10 wt.%. Scanning electron microscopy (SEM) was used to investigate the particle dispersion on the surfaces o...

The S-matrix in the static limit of a dispersion relation is a matrix of a finite order N of meromorphic functions of energy ω in the plane with cuts (−∞,−1], [+1,+∞). In the elastic case it reduces to N functions Si(ω) connected by the crossing symmetry matrix A. The scattering of a neutral pseodoscalar meson with an arbitrary angular momentum l at a source with spin 1/2 is considered (N=2). T...

Location: Exhibit Hall D (Miami Beach Convention Center) A. LANGSTON, S. CHOGLE, S. SHAIKH, M. SANKARAN, S. QUTUBUDDIN, A. MICKEL, S. POTLURI, and S. ALHASSAN, Case Western Reserve University, Cleveland, OH Objectives: Polymer nanocomposites(PNCs) are a new class of materials consisting of nanoparticles at very small quantities dispersed within a polymer matrix. The extent of nanoparticle dispe...

The restricted maximum likelihood (REML) estimator of the dispersion matrix for random coefficient models is rewritten in terms of the sufficient statistics of the individual regressions.

Abstract In this work a procedure to compute the dispersion curves for one dimensional viscoelastic waveguides exploiting the finite element based global mass matrix and complex stiffness matrix is proposed. The global matrices of a finite length portion of the waveguide, the unit cell, are post-processed by enforcing Bloch-type boundary conditions along the wave propagation direction and next ...

Introduction Matrix metalloproteinases (MMPs) represent a family of zinc dependent endopeptidases which is involved in the breakdown of components of the extracellular matrix and helps in tissue remodeling [1]. The process is vital in embryonic development, pregnancy, growth and wound healing. Usually the activity of MMPs is restricted by the equilibrium between synthesis of active MMPs and the...

Bast fibers from stems of kenaf (Hibiscus cannabinus, L.), a warm-season tropical herbaceous annual plant, were dispersed into poly-L-lactide (PLLA) matrix by melt-mixing followed by compression molding. Low fiber fractions (1–5%) were investigated. The composites showed a slight lowering of thermal stability when evaluated by thermogravimentric analysis. X-ray diffraction and differential scan...

Poly(ethylene-g-maleic anhydride) (PEMA)/graphene nanoplatelets (xGn) (PEMA-xGn) composites were prepared by melt dispersion in an internal shear mixer. By adding dicumyl peroxide (DCP), cured poly(ethylene-g-maleic anhydride) C-PEMA was also produced. Different amounts of xGn were introduced into the PEMA in range of 0.5–5 wt. %. The effects of the sequence of feeding additives into the mixer ...

Efficient and low-cost dispersion compensation is necessary to achieve useful transmission distances in optical communication systems at bit rate of 10 Gb/s.In this paper electronic feed forward equalization is performed to mitigate the link chromatic dispersion. The filter coefficients are computed by a decision-directed process based on the recursive least square algorithm. Recursive least sq...