In this paper, the development of the drive system of the motor Wire port Crane
according to the principle of the indirect field orientation.
Require the operation of the port Crane operations, different operation situations of
variable speed and
Torque with time, which is a case dynamic electro and electro-magnetic
transient, may affect the performance of operations, so therefore been building motor Wire
port Crane operations system corps in winches achieve:
- High performance and Efficiency.
- Build the desired control system according to the principle of the Pulse Width
Modulation (PWM) and the main power system, taking into account the reduction of
changes DC-Link voltage and achieve maximum flux before starting the motor.
- Reduction of excess Voltage that may appear on a DC-Link, using the brake
Transistor with Brake resisters.
At the end of the research has been reviewed and the search results that indicate the
outstanding performance of the proposed system with the ability to use the same system to
run automated processes different.
The various types of radial distortions generated by digital cameras are presented in this paper, like Barrel Distortions and Pincushion Distortion.
Image processing techniques are used to correct the barrel distortion generated by wide-angle lenses
of digital cameras. A model for barrel distortions is founded. Moreover, an algorithm for correcting this distortion is developed. This algorithm depends on finding the right parameters of the model. The grid pattern is used to detect pixels that caused the distortion and reallocate these pixels back into their original locations, making the corrected photo as close as possible to the original.
The aim of this paper is to test the influence of the laser brightness on the
retina of eye of lacerta laevis, and the value of the distortion or damage in the
construction of photoreceptors (Cones), which are responsible of the viewing
process or
in the pigmentary epithelial layer which protect from the high light
intensity.
On the other hand, the continuation of the exposure to the He- Ne laser
beam the number of the damaged cells, that causes the loss of entire
photoreceptor layer. The results show similar effects at specular reflection.
Hence, it is very important to pay attention to the hazard emerged from the
laser beam in visible range, which requires to apply the special goggles, as well
as to keep the laser pointers out of reach of children.
