Abstract— The natural frequency of 1-degree spring mass system can be calculated by using three well-known analytical methods (viz. Equilibrium method, Maximum energy method, and Rayleigh’s method). The Equilibrium method is based the Newton’s second law of motion and the D’Alembert’s principle. The Maximum energy method and Rayleigh’s method are based on the kinetic energy and potential energy of system. In this paper, the natural frequency of an un-damped spring mass system is calculated experimentally and compared it with that of the analytical value. The effect of mass and stiffness of system on the natural frequency is also discussed. The effect of experimental and exact (theoretical) natural frequencies is explained in detail.

Keywords— Stiffness, Time Period, Oscillation, universal vibration analyser

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Abstract: Cloud computing has emerged pattern that pulls peoples. On this paper, the necessity for understanding where, how and when knowledge is either processed or saved in database, becomes a chief interest because of the continually constructing discipline of cloud computing forensics. In this paper we describe in a distinctive manner a predominant part of our cloud forensic framework that may be built on high of both new and current knowledge - the logging phase. We discuss the problems that have got to be dealt with in such architectures and we detail our proposed options to them. We explain how our architecture and findings can support forensics investigators that habits investigations in a cloud environment.

Keyword: Cloud Computing, Forensic Science, Logging Framework, Data Science

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Abstract— The objective of this paper is to investigate and enhance the safety aspects of net service delivery to small and medium-sized businesses (SMBs), and also the policy and restrictive implications of cyber-security within the ‘fragmented’ structural surroundings in an exceedingly developing economy. The ever present interconnectivity provides the first passage for exploiting vulnerabilities on a widespread basis; Medium Enterprises (SMB) sector is crucial in terms of economic process in developing economies. The ever present net permeates each aspect of human endeavour, not solely to the technologically developed countries, however additionally more and more current in developing countries. Whereas some argue that the pace of the expansion of the computer network ought to continue while not governmental restrictions, others, from another point of view , argue that these connectivity's ought to be actively regulated through domestic and international laws. The latter thinks that non-regulation of the computer network may have a grave cyber-security issue which is probably going to inhibit this growth and development gains. This analysis analyzed the assorted policies and frameworks in respect of secured interconnectivity, adherence to governance, risk and compliance problems in an exceedingly best-practice fashion. Inferential analysis reveals that there is a unit some cyber-security implications on SMB in an exceedingly fragmented policy and restrictive surroundings. The findings area unit mentioned and taken to produce highlights of those policy and restrictive challenges.

Keywords— Cyber Security, Data Collection Methodology, SMB (small and medium-sized SMB), Null Hypothesis, Alternative Hypothesis.

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Abstract— It is advantageous to use power electronic inverters fed Induction motor (IM) as it affects the cost and energy efficiency. These induction motors (IM) that are fed by advance inverters are proven in the field of high power drive industrial applications. In this paper, a simulation model representing the correct dynamic response of Space Vector Pulse Width Modulation (SVPWM) inverter fed Induction Motor has been presented and tested by MATLAB/Simulink environment. The transient behaviour of SVPWM fed induction motor has been examined and comparatively analysis is presented for healthy and faulty (bearing fault) condition. The dynamic model of IM is the key component of system to correctly identify and eliminating different faults cause due to changes occurs in parameters during operation and unintended design mistakes. In the proposed simulated system of SPWM and SVPWM inverter fed IM model provides the comparable promising desired results with reduced harmonics, which shows the SVPWM inverter perform better then the SPWM inverter technique. Therefore the detection of bearing fault using signature analysis is successful carried out with SVPWM inverter fed IM drive, So that detection of bearing fault condition is quickly possible.

Keywords— Space Vector Pulse Width Modulation (SVPWM), Sine Pulse width Modulation (SPWM), Bearing Fault, signature analysis, Induction Motor (IM)

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