In this paper statistical and time series models are used for determining the random drift of a dynamically Tuned Gyroscope (DTG). This drift is compensated with optimal predictive transfer function. Also nonlinear neural-network and fuzzy-neural models are investigated for prediction and compensation of the random drift. Finally the different models are compared together and their advantages a...

semi-active base isolation system has been proposed mainly to mitigate the base drift of isolated structures while in most cases, its application causes the maximum acceleration of superstructure to be increased. in this paper, designing optimal semi-active base isolation system composed of linear base isolation system with low damping and magneto-rheological (mr) damper has been studied for co...

THE INFLUENZA VIRUS Antigenic Changes To maintain its virulence within a population, the influenza virus continuously evolves. Two types of antigenic changes can occur. Antigenic drift results from the accumulation of point mutations in the HA and NA genes. When drift occurs, seasonal epidemics can arise; this is why the influenza vaccine is updated on an annual basis. Antigenic shift is the ap...

In this paper we study solutions to stochastic differential equations (SDEs) with discontinuous drift. We apply two approaches: The Euler-Maruyama method and the Fokker-Planck equation and show that a candidate density function based on the Euler-Maruyama method approximates a candidate density function based on the stationary Fokker-Planck equation. Furthermore, we introduce a smooth function ...

We present a new method to reconstruct a temporally coherent 3D animation from single or multi-view RGB-D video data using unbiased feature point sampling. Given RGB-D video data, in form of a 3D point cloud sequence, our method first extracts feature points using both color and depth information. In the subsequent steps, these feature points are used to match two 3D point clouds in consecutive...

the radial trace transform was introduced by the stanford exploration project many years ago (ottolini, 1979 and claerbout, 1983), primarily for use in migration and imaging applications. it has been shown subsequently, because of its particular geometry, to be very useful for wavefield separation (claerbout, 1983) and coherent noise attenuation (henley, 1999). the radial trace transform, unlik...

BACKGROUND The registration of a pre-operative image with the intra-operative patient is a crucial aspect for the success of navigation in neurosurgery. METHODS First, the intra-operative face is reconstructed, using a structured light technique, while the pre-operative face is segmented from head CT/MRI images. In order to perform neurosurgery navigation, a markerless surface registration me...

Turbulence in hollow cathodes used for space propulsion is believed to play an important role anomalous electron transport and ion heating. In this work, the implementation of coherent Thomson scattering identify characterize MHz-frequency acoustic turbulence kHz-frequency oscillations plume a cathode achieved. presence background magnetic field Hall thruster, number unstable modes are observed...

it is a basic question in law with the aim to regulate conducts that how tort and regulatory law could have interaction to reach that aim. in this regard it is clear that they have fundamental difference in both goals and functions and the choice of law makers is to evaluate them differently and internally. but they could be seen in a coherent system of conduct regulation, in which the tort and...