A thing or place that effect you and change your life Essay

A thing or place that effect you and change your life - Essay Example This allowed me to understand how life shaped up and what I needed to do in order to learn more new things and find remedies to problems which came up all of a sudden, and without many warning signs. Learning a new language was always exciting to me because I believed that with a little effort, I could master a dictum which was not my own. This indeed was the motivating force behind my acquisition of a new language within school at Canada. Work was no doubt fun but getting back to school after a while gave me immense reasons to smile once again. It made me feel like I was someone younger to my age, and allowed me to experience the joy of learning things yet again. It seldom happens that a grown up gets to feel the thrills of being back at school, and I can safely and proudly say that I have had such an experience ever since I joined school again. Just the feeling that I can be counted amongst the students who will learn something novel and unique was enough to tell me that I had made the right decision by re-joining school within Canada. It made me feel privileged more than anything else. What this did was to change my life for the better and that too in a quantifiable way. It made me feel at ease with the changing norms of the time and allowed me to get acquainted with how I can enrich my life time and time again. The people around me also supported the fact that I have made the right decision and this shall facilitate me in future realms which remain very quintessential for me undoubtedly. Also I found out that the teachers present in the school assisted me without any concerns whatsoever. They made me feel at ease with what was being taught and I felt at home with what I was learning all this while. In the end, I would fathom that this was indeed one of the best lessons that I had from life up till now. It allowed me to understand life’s different

Literature review about piezoelectric electronic circuit Research Paper

Literature review about piezoelectric electronic circuit (Rectification with an inductor and Buck DC-DC converter cuircuit) - Research Paper Example (Diamond, 2009) Much of its role in alternative energy and applications but first, what is piezoelectricity or, the piezoelectric effect? Wayne Tomasi (2004) defines the piezoelectric effect as generating electrical oscillations as varying mechanical stresses—either as, compression, tension, torsion or shearing, is applied across a crystal lattice structure (i.e. quartz, Rochelle salts, tourmaline, etc.) and vice versa. With this, ambient vibrations in and around systems which typically, are lost energy, can be captured and converted to usable energy, available for consumption—the primary goal of power harvesting; but since, as shown in research, the energy generated by piezoelectricity is insufficient to power most electronics, power harvesting technology has, mostly, focused on accumulation and storage techniques that would enable technology to collect enough energy for a variety of applications. (Sodano et al., 2005) In this premise, the researcher came up with a pro ject, entitled â€Å"Integrated Circuits for Energy Harvesting Application†, aiming to design and build a prototype circuit that utilizes piezoelectricity—via the PFCB-W14 piezoelectric device, for energizing small electronic systems, which in this case, is the charging of a Lithium-ion rechargeable battery—which have become very popular today. Figure 1. Equivalent Circuit and Power Generation of PFCB-W14 at 27Hz To better visualize the concept of piezoelectricity, illustrated above is an equivalent circuit of a piezoelectric generator—functioning as a capacitor and a resistor in series with the output terminals, as well as a bar chart of the power generation of Advanced Ceramics Incorporated PFCB-W14 at 27Hz, both obtained from PFCB-W14 Specifications Sheet. By closely looking into the chart, it can be seen that with load resistance in the range of 400k? to 600k?, at typical amounts of force applied, there is maximum power. And along the lines of impedan ce-matching, when the load and source impedances—in this case, the load and internal resistances, were equal, maximum power transfer occurs, an important point to consider in every circuit design. (Boylestad & Nashelsky, 1998) Also, note that the output of the generator is an ac voltage. Disregarding impedance-matching, rectifying the piezoelectric generator, and directly connecting the output to a capacitor or battery would have been a more straightforward approach for the project. Despite its simplicity and the fact that this circuit works, with the enormous mismatch between the resistances of the generator (in the order of millions) and the battery (merely in ohms, and at times even down to milliohms), basically all the power would be dissipated as heat in the generator itself. For a better implementation of the project, the circuit shown below was considered. Figure 2. Simple Charging Circuit using Inductor Illustrated above is a simple charging circuit that utilizes an i nductor, on top of piezoelectric generator, a rectifier bridge, a Zener diode and a Lithium battery that is being charged. Inductor Adding an inductor, as shown above, with sufficiently high reactance so as for the piezoelectric