Determination of optimum tilt and azimuth angle of BiSPVT system along with its performance due to shadow of adjacent buildings

Under single scattering conditions, water droplets clouds do not depolarize the backscattered light. However, backscattered light from multiple scattering will be depolarized. The level of depolarization is a function of the droplets size and of the cloud extinction coefficient value and its profile; it has also a strong dependency on the lidar field-of-view (FOV) and azimuth angle [1]-[3]. It has been demonstrated in [4] that the multiple scattering cross polarization signal can be reduced to a second order scattering one using the azimuthal dependency of the cross polarization. In this paper we present how the multiple scattering cross polarization can be reduced to a second order scattering and how this signal is related to the droplet particle size. Monte Carlo simulations for clouds at different ranges and effective radius sizes are performed and compared with the results obtained with an analytical model.

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Determination of crown space in hedgerow orchard in different directions of sunny hill slope

World Journal of Engineering ◽

10.1260/1708-5284.12.5.507 ◽

2015 ◽

Vol 12 (5) ◽

pp. 507-513 ◽

Cited By ~ 1

Author(s):

Yongchao Liu ◽

Baoguo Ma

Keyword(s):

Cross Section ◽

Cross Sections ◽

Rectangular Cross Section ◽

Azimuth Angle ◽

The Sun ◽

Parallel Lines ◽

Hill Slope ◽

Sun Light ◽

Slope Direction

In certain latitude areas, fruit growth is determined by the slope between 5° and 20°. According to the designed sunny slope direction and the parallel lines to the slope direction, we take two adjacent rows of the hedge to meet certain condition of the sun light, and draft the chart of shadow top contour based on the solar azimuth angle A and the coefficient of shadow length γ to get crown space of the rectangular cross section in different ground of slopes. Then, the crown section lateral is changed to get mathematical models which determine the crown space of different cross sections in hedgerow orchard.

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Calculation of aerodynamic characteristics of adjacent buildings

Construction and Architecture ◽

10.29039/2308-0191-2020-8-1-67-81 ◽

2020 ◽

Vol 8 (1) ◽

pp. 67-81

Author(s):

Vladimir Samsonov

Keyword(s):

Aerodynamic Characteristics ◽

Velocity Profiles ◽

Aerodynamic Coefficients ◽

Adjacent Buildings ◽

Industrial Buildings

The article describes the basic formulas for determination of the aerodynamic characteristics of the industrial buildings and their complexes: the size of the circulation zones, the aerodynamic coefficients and the velocity profiles of the wind.

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Determination of Residual Stress Gradients in Al2O3 Ceramics after Thermal and Mechanical Loading

Materials Science Forum ◽

10.4028/www.scientific.net/msf.490-491.485 ◽

2005 ◽

Vol 490-491 ◽

pp. 485-490 ◽

Cited By ~ 3

Author(s):

T. Erbacher ◽

Michael Ott ◽

Tilmann Beck ◽

Otmar Vöhringer

Keyword(s):

Residual Stress ◽

Stress State ◽

Residual Strength ◽

Azimuth Angle ◽

Stress Effect ◽

Measurement Condition ◽

Al2o3 Ceramic ◽

Residual Stress State ◽

Residual Stress Effect

Al2O3 ceramic plates of diameter 166 mm and thickness 5 mm were subjected to frictional loading regimes. The resultant residual stress effect in the material was analyzed using the sin2y and AP methods based on a modified measurement condition for the pole angle y and the azimuth angle F on a 4 cycle goniometer. Furthermore, the frictional loading of the Al2O3 plates lead to clear differences in the residual stress state near the surface. An underlying correlation was observed between the residual stress state of the Al2O3 material and its residual strength with this effect being ascribed to the magnitude of frictional load applied.

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Galactic orbits of stars

Symposium - International Astronomical Union ◽

10.1017/s0074180900105340 ◽

1966 ◽

Vol 25 ◽

pp. 93-97

Author(s):

Richard Woolley

Keyword(s):

Globular Cluster ◽

Potential Field ◽

High Velocity ◽

Velocity Vector ◽

Variable Stars ◽

The Sun ◽

Proper Motions ◽

Rr Lyrae ◽

The Galaxy

It is now possible to determine proper motions of high-velocity objects in such a way as to obtain with some accuracy the velocity vector relevant to the Sun. If a potential field of the Galaxy is assumed, one can compute an actual orbit. A determination of the velocity of the globular clusterωCentauri has recently been completed at Greenwich, and it is found that the orbit is strongly retrograde in the Galaxy. Similar calculations may be made, though with less certainty, in the case of RR Lyrae variable stars.

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