The composition characteristics and working principle of the hydraulic rotary system azimuth thruster were analyzed. mathematical model dynamic pump-controlled motor driving gear reduction mechanism was established. Additionally, a fast tracking method for angle proposed to analyze angle, angular velocity response different desired angles. simulation results show that established can simulate m...

We present a color image encryption algorithm by using chaotic mapping and Hartley transform. The three components of color image are scrambled by Baker mapping. The coordinates composed of the scrambled monochrome components are converted from Cartesian coordinates to spherical coordinates. The data of azimuth angle is normalized and regarded as the key. The data of radii and zenith angle are ...

A method is outlined that allows the determination of one-dimensional stress gradients at length scales greater than 0.2 mm. By using standard four-circle X-ray diffractometer equipment and simple aperture components, length resolutions down to 0.05 mm in one direction can be achieved through constant orientation of a narrow, line-shaped beam spot. Angle calculations are given for the adjustmen...

Clear polar and azimuth angle dependencies were found in rotational and vibrational energies of product CO2 in CO oxidation on Pd surfaces. On Pd(110)-(1x1), with increases in polar angle, both energies decreased in the [001] direction but remained constant in [110]. On the Pd(110) with missing rows, both energies increased in [001] but decreased in [110], indicating that the transition state c...

This paper presents measured statistical distributions of incident waves to a mobile antenna in urban microcellular and indoor environments at 2.15 GHz. The power spectra of azimuth angle, elevation angle, and Doppler frequency are presented for horizontally and vertically polarized waves separately. The measurement campaign has been performed using a spherical dual-polarized antenna array and ...

In this communication an attempt has been made to find out distribution of solar radiation, using the concept of solar fraction inside a conventional (single slope) solar still by using AUTOCAD 2000 for a given solar azimuth and altitude angle and latitude, longitude of the place. Further the experimental validation of the model developed earlier has been carried out for design and climatic par...

Contrast and gray scale stability are important attributes in determining the quality of a liquid crystal display. For LCD TVs the influence of the viewing angle is especially important. In the present paper, we use a Fourier optics based instrument to measure the gray scale behavior of different LCD displays along most of their viewing angle. The measurements can be made in luminance, color or...