contrary to the long period ground motions that can be predicted and estimated, high frequency ground motions have random character and behave stochastically. stochastic modeling methods are usually used for the modeling of high frequency ground motions where there are not strong ground motion records. stochastic methods are of two kinds: in the first one, the seismic source is considered as a ...

this study simulates the temperature field and temperature stress of concrete face slabs, considering the cold waves that occur during construction as well as the contact friction between the face slabs and the cushion layer. the results show that when a cold wave occurs during construction, the surface and center temperature of the face slabs continually drop with the outside air temperature, ...

OBJECTIVE The activity of dopamine-dependent retinal signaling can be assessed using electroretinography. Response of this system to oral food stimulation might provide accessible insight into the brain dopamine response to oral stimuli as retinal dopamine concentration is dependent upon mid brain dopamine concentration was postulated. DESIGN AND METHODS Nine individuals had cone ERG (b wave)...

Electroencephalographic patterns were studied in 30 normal healthy individuals practicing meditation and compared with 10 normal healthy controls not practicing meditation. In this study, we found prominent alpha wave activity and increase it its voltage in meditators as compared to controls. Meditators had significantly more alpha rhythm as compared to control group. Percentage of alpha waves ...

PURPOSE To determine whether systemic application of propranolol, a nonselective beta-adrenergic receptor antagonist, with an osmotic pump will decrease the b-wave amplitude of the electroretinogram (ERG) and increase insulin-like growth factor (IGF)-1 receptor signaling. METHODS Young rats at 8 weeks of age were treated with saline, phentolamine, a nonselective alpha-adrenergic receptor anta...

refractor ambiguities are big problem in seismic refraction method especially in seismic engineering. there can be hidden subsurface geological phenomena such as hidden faults and shear zones which are not simply predicted by the travel-time graph or some geophysical methods. head wave amplitudes are used to show the resolution of refractor ambiguities and the existence of anisotropy in complex...

We studied the impact of a low induction magnetic field on alpha, beta, theta, SMR and delta brain wave rhythms, registered in RT mode by means of an expert system ProComp+/ BioGraph V2.1 from the F-C and F-C leads. The research involved 70 women and 70 men aged 19-23 with and without manifest difficulties in solving logical-mathematical problems, divided into four groups of 35. The examination...

In the present investigation, we study the reflection of plane waves, that is, Longitudinal displacement wave(P-Wave), Thermal wave(T-Wave) and Mass Diffusive wave(MD-Wave) in thermodiffusion elastic-half medium which is subjected to impedence boundary condition in context of one relaxatioon time theory given by Lord and Shulman theory (L-S) and the Coupled theory (C-T) of thermoelasticity. The...

The present investigation deals with the propagation of waves in the layer of an anisotropic fibre reinforced thermoelastic solid. Secular equations for symmetric and skew-symmetric modes of wave propagation in completely separate terms are derived. The amplitude of displacements and temperature distribution were also obtained. Finally, the numerical solution was carried out for Cobalt material...