Normally available locks in the bikes do not provide enough security to the bike owners. Traditional locks available in the bikes are well known to thieves and they can be easily broken by them. Thus there is a need for more security options to be available for the motorcycle which is unique and must be different from the traditional key locks. Biometrics system can be used as a good and effective security option. An important and very reliable human identification method is fingerprint identification. As fingerprint of every person is unique thus it can be used in various security options. In this paper we are focusing on the use of finger print recognition to start or ignite the motorcycle against the use of conventional methods of key locks. A detailed comparison is shown in the paper related to this work. In this paper the work done before in this field is shown. Various other methods that can be used to enhance the security have been shown in a comparative way. Related work include enhancing the security of the bikes by adding different types of locks and alarming unit to alert owner of the bike in case of danger.

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We investigate experimentally the effect of periodic perturbations on the gas flow and assess the possible coupling between the chamber acoustics and the atomization process in a recessed gas-centered swirl coaxial (GCSC) injector by studying the liquid sheet breakup dynamics. Experiments are conducted using water and air, and acoustic perturbations are introduced to the gas flow line using a speaker. High-speed imaging is used for flow diagnostics. The steady spray is observed to transform into a pulsating spray by the acoustic excitation of the gas flow. This pulsating spray resulting from the gas flow perturbations occurs at much lower MFR where the self-pulsation of spray is otherwise not observed without acoustic forcing. The characterization of spray pulsation frequency shows that it matches well with the acoustic frequency. The pulsation effect is more severe with an increase in the MFR. It is further noted that the periodic pulsation of spray exists up to a certain excitation frequency of the gas flow, and beyond this frequency, the dominant pulsation frequency disappears. The atomization process is further quantified in terms of the waviness of the liquid sheet (tortuosity) and the spray turnback angle, which show significant changes in the presence of acoustic excitation.

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