The purpose of this study is to calculate the bending deflection which used investigate largest Lyapunov exponent due buckling load. design methodology parameter at different thickness ratios and fiber volume fractions using one two stiffeners in order reduce chaotic phenomenon. practical implication find a strain gauge through meter, algorithm average logarithmic divergence experimentally. exp...

Studies on the evolutionary history of ascomycetes in terms of time scale will help to understand historical patterns that shape their biodiversity. Until now most of dating studies of ascomycetes have focused on major events in fungal evolution but not on divergence events within smaller groups of fungi e.g. within Sordariomycetes. We used molecular dating to estimate the time of separation of...

Nonlinear effects in vibration responses are investigated for the undamaged composite plate and the composite plate with a delamination. The analysis is focused on higher harmonic generation in vibration responses for various excitation amplitude levels. This effect is investigated using the triple correlation technique. The dynamics of composite plate was modelled using two-dimensional finite ...

this study utilizes a decade long (2005-2014) monthly data of total column tropospheric ozone (tcto) in dubson units to evaluate the spatial and temporal trend of lao over some major cities of west africa, namely lagos, accra, niamey, abuja, bamako, dakar, agadez, conakry, kano, and ouagadougou which are either capital cites or major commercial hubs, where the population ranges from 0.09 millio...

natural vibration analysis of plates represents an important issue in engineering applications. in this paper, a new and simplify method for vibration analysis of circular and rectangular plates is presented. the design of an effective robust controller, which consistently attenuates transverse vibration of the plate caused by an external disturbance force, is given. the dynamics of the plate i...

Laser diode beam divergence is the main parameter for beam shaping and fiber optic coupling. Increasing the waveguide layer thickness is the conventional method to decrease the beam divergence. In this paper, the broadened asymmetric waveguide is introduced to decrease the divergence without increasing the optical power. The asymmetric waveguide was used to shift the vertical optical field to n...

We develop the theory of optical beam shifts (both Goos–Hänchen and Imbert–Fedorov) for case near-normal incidence, when incident angle becomes comparable with angular divergence. The developed uncovers unified origin anomalous shift enhancement via geometric Berry phase singularity. Particularly, we predict large occurring small incidence angles. also propose a simple experimental scheme invol...

Paleomagnetic data from Sierra San Fermfn in the Gulf of California Extensional Province indicate that localized clockwise rotations about vertical axes occurred uring Pliocene through Recent extension and dextral shear. Relative declination discordances in upper Miocene and Pliocene ash flow tuffs indicate a net clockwise rotation of 30 ø _+ 16 ø. Clockwise rotation between 12.5 and 6 Ma is st...

A detailed model of diffraction of plane and Gaussian beams on plane uniform phase Bragg gratings based on a Kogelnik's theory of coupled waves is presented. The model describes reflecting gratings (Bragg mirrors) with arbitrary orientation in a plane-parallel plate having no material losses. It takes into account spectral width and angular divergence of laser beams. The results of modeling are...