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Search results for: frequency
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Year: 2010, Volume: 10, Issue: 2
... for one wind turbine, at an average of a wind speed 10 m/s. As expected, both wind speed models fluctuate with three times the rotational frequency (3p). The aerodynamic torque (torque_rot-Trot) accelerates the wind turbine rotor, with the generator disconnected from the grid, until the rotor speed ( ...
Year: 2010, Volume: 10, Issue: 2
... for a walking robot with Choosing the movement period of the robot to 3.7 s, application to walking robot. The position of each actuator we've obtained its natural frequency of 0.27 Hz. Double is controlled by a PD feedback loop, using encoder like support phase portion in a walking cycle is approximately transducers. In HFPC ...
Year: 2010, Volume: 10, Issue: 2
... microphones, spaced at 30mm  The board is endowed with basic input/output  variable gain, in the range of 10 – 2700 functions:  cut-off frequency of the 2nd order lowpass filter:  audio data acquisition and data transfer to BF561 22 kHz  data transfer between the two processors (UART,  ...
Year: 2010, Volume: 10, Issue: 2
... the second module was implemented by a textual numerical system programming. The function call is realized with a 1KHz The Simulink model for the CANopen node of the second frequency by the SW_TimerISR sub-system. SDO services numerical system is similar with the model from Fig. 5, but are assured by the object dictionary SDOResponseTable and eZdsp ...
515. Induction Machine with Improved Operating Performances for Electric Trucks. A FEM-Based Analysis
Year: 2010, Volume: 10, Issue: 2
... regarding the way mechanism for middle to heavy-duty trucks employed in the traction power is transmitted. The first locomotive with USA where the preoccupation for such solution is static frequency converter comes from 1970 [1]. ascending. Concurrently, the producers have tested different solutions This paper is an initiatory approach, which focuses on the ...
Year: 2010, Volume: 10, Issue: 2
... are very sensitive to disturbances during transmission and thus unsuitable. To overcome this disadvantage, a second type of pulse is used to transmit the information, namely linear frequency modulated chirp pulses [9]. Because of its large Figure 12. Theoretical travel time measurement error due to reflected bandwidth-time product it is very robust against ...
Year: 2010, Volume: 10, Issue: 2
... s  NTs, where N is the Consider the response of experienced Servo Motor to step number of samples, which will be obtained if the sampling function: frequency is definite  f s  Ts ï€1 . 18 16 14 III. PROBLEM STATEMENT 12 We intend to simulate some servo by estimating the dynamic state ...
Year: 2010, Volume: 10, Issue: 2
... the input with the various master clock (MCLK) frequencies that each individual sampling frequency Fs_in, it should be converted to the IC had originally. There are ... filters. The transfer function of the SRC block in the z-domain and the normalized frequency-domain, referenced to the operating frequency (Fs_op) is: U ï€1 ï€ ...
Year: 2010, Volume: 10, Issue: 2
... the expert system provides suggestions- reports corresponding to homework; concerning certain parameters of the therapeutic- the test results and their development (obtained evolution, such as frequency, length and content of the from the formative evaluation). sessions, on the basis of certain input variables. Should On the basis of this information ...
Year: 2010, Volume: 10, Issue: 2
... . A large number of studies have been published in scientific literature related to wind energy, which propose the use of a variety of pdf-s to describe wind speed frequency distributions [4 ,5]. The conclusion of these studies is that the Wind speed Weibull distribution of two parameters may be successfully (m /s ...
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