Dissertation abstract My research focuses on mis- specified distribution apply to reliability modeling. Based on lifetime distributions‚ log normal and Weibul are one of the most widely used distribution in reliability engineering‚ location scale models which involves one or more shape parameters also are sometimes useful. Beside additional flexibility for fitting data‚ such models can provide comparisons of Weibull and Lognormal models and can be used to examine the robustness of conclusions to
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Ball | Height of rebound | Coefficent | Golf Ball-Floorboards | 50cm | 0.50 | Baseball-Floorboards | 20cm | 0.20 | Netball-Floorboards | 80cm | 0.80 | Basketball-Floorboards | 85cm | 0.85 | Volleyball-Floorboards | 85cm | 0.85 | Baseball-Turf | 25cm | 0.25 | Soccer Ball-Turf | 75cm | 0.75 | Basketball-Turf | 85cm | 0.85 | Golf Ball-Turf | 5cm | 0.05 | Basketball-Carpet | 70cm | 0.70 | Netball-Carpet | 75cm | 0.75 | Baseball-Carpet | 25cm | 0.25 | Golf Ball-Carpet | 20cm
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A Report on STUDY OF TRACTOR VIBRATION AND ERGONOMIC DESIGN OF TRACTOR SEAT FOR OPERATORS COMFORT INDEX |Sr. No. |Content |Page No. | |1 |Objectives |1 | |2 |Introduction |2-4
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Vibration Sensors Introduction / Selection Characteristic Flat Frequency Response 20–1‚500 Hz 2–5‚000 Hz Phase Fidelity 2–5‚000Hz Reduced Noise at Higher Frequencies Linearity Mounting in Any Orientation Temperature Limitation EMI* Resistance Mechanical Durability Coil and Magnet Velocity Sensor Piezoelectric Velocity Sensor Yes No Yes Yes Acceptable Excellent No Good Sensor Dependent > +707°F (+375°C) Acceptable Good Yes Good Yes +248°F (+120°C)
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transceiver is studied and power-efficient circuits is designed for the transceiver. ABOUT UWB Ultrawide band technology is a wireless technology to transmit large amount of digital data as modulated coded impulses over a very wide spectrum of frequency with very low power for a short distance.In 2002‚the Federal Communications Commission allows UWB Communication in the 3.1-10.6 GHz band having a -10 dB bandwidth greater than 500 MHz and a maximum equivalent isotropic radiated power spectral
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= 3. a_1 = 2.3 y = a_1*np.sin(2.*np.pi*time*f_1) plt.plot(time‚y) plt.xlabel("Time t [s]") plt.ylabel("Wave") plt.title("Wave Signal") plt.show() n = time.shape[-1] transform = (fft(y)[:n/2]) * 2./n frequency = fftfreq(n‚time[1]-time[0])[:n/2] plt.plot(frequency‚np.abs(transform)) plt.xlabel("Frequency f [Hz]") plt.ylabel("Amplitude") plt.title("Fourier Transform") Input: Output: (code): import numpy as np import matplotlib.pyplot as plt from scipy.fftpack import fft‚fftfreq
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the oscillating up and down the length of the source (antenna). The current is this created in the antenna. •Adjust the transmitter on the simulator so that it is in the sinusoidal mode and the electrons are oscillating up and down at a regular frequency. Ensure the “display the curve” and the “radiated field” boxes are checked. What does the
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producing sounds of different frequencies which were used to vibrate a mirror. A beam of light was then reflected from the mirror to produce trace patterns which were dependent on the frequencies. This setup used by Lissajous is similar to what is used today to project laser light shows. Today‚ Lissajous figures are generated with an oscilloscope‚ a type of cathode ray tube that provides a picture of electric signals in the form of a graph. Before digital frequency meters and phase-locked loops
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microprocessors to generate a clock at high frequency (Fout=2GHz for example) from an external clock at low frequency (Fref = 100MHz for example). The PLL is also used as a clock recovery circuit to generate a clock signal from a series of bits transmitted in serial without synchronization clock (Figure below). The PLL may also be found in frequency demodulation circuits‚ to transform a frequency varying waveform into a voltage. The PLL uses a high frequency oscillator with varying speed‚ a counter
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the design of a dual-frequency antenna for GSM and UMTS/LAN/ISM system applications. A patch antenna with rectangular aperture is designed by using a thick substrate in order to increase the bandwidth. After this‚ we have extracted the reflection coefficient of the considered antenna excited by a probe feed and by optimizing the antenna dimensions and the aperture position. The simulation of this antenna has been made by advanced design system (ADS) in the band of frequency between 50 Hz and 3.2
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