Maciej Petko

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The paper presents an application of field programmable gate arrays (FPGA) to support the calculation of the inverse kinematics problem of a parallel robot. The presented robot is designed for milling by moving the spindle along a desired trajectory generated in the Cartesian space. This means that for each point of the trajectory a solution of the inverse(More)
To test null hypothesis (Ho):prenatal exposure to heavy metals does not increase the risk of prematurity and the delivery of small for gestational (SGA) infants, a case-controly study was carried out in Southern Poland.Material: From July 1992 through June 1993 all cases of SGA (<10 perc.) (N=74) and preterm (<37 wks) newborns (N=104) were ascertained(More)
A trajectory generator is one of the most important part of a CNC machine control system. It is required to ensure the smooth tool movement and feed rate changes, which can be done by limiting the jerk. The reason of developing the generator was the necessity of providing values of displacement, feed rate (velocity) and acceleration for all axes of milling(More)
Quality improvement of a manufactured product is a natural process accompanying the development of civilization. Nowadays, designed machines are much more accurate and efficient. In addition, the flexibility of production needs to increase functionality built machines. Among all machines assigned for manufacturing purposes, milling machines play a(More)
A trajectory generator is one of the most important part of CNC (Computer Numerical Control) machine control systems. It has to ensure the smooth tool movement and feed rate changes, which can be done with a limit imposed on the jerk. The paper presents an application of field programmable gate arrays (FPGA) to accelerate calculations needed for trajectory(More)
The aim of the work is to present regenerative medicine achievement as an alternative SUI treatment and the variety of injected cells type as well as injection techniques itself with the analysis of their quality and possible the mechanism in which they reduce urinary incontinence symptoms. For over a decade numerous authors declare use of different type of(More)
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