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Crystal Essay Topics & Paper Examples

Piezoelectric Crystal

Piezoelectricity is the ability of some materials such as crystals and certain ceramics, to generate an electric potential in response to applied mechanical stress or heat. If the piezo crystals are not short-circuited, the applied charge induces a voltage across the material. The word Piezo is derived from the Greek “Piezein”, which means to squeeze or press. The piezo material exhibits both “Direct piezo electric effect” as well as ‘Converse piezo electric effect”. Direct piezo electric effect is the production of electricity when the crystals are mechanically stressed and the converse piezo electric effect is the stress or strain in the crystals when an electric potential is applied. The most common crystals used is lead zirconate titanate crystals. The Piezo…

LAN & WAN Design

A little bit of background follows. Crystal Limited is an award winning design consultancy with many years experience in creating hotel, leisure and retail environments for design led clients worldwide. The company is currently experiencing growth and is opening new offices in major UK locations. Funding has been released for improvements to its network services. A key requirement is the network design should provide a high level of reliability and scalability to meet the needs of future growth. Ethernet hubs are typically used to connect workstations to the network, and the Nottingham, Liverpool, Leeds and Derby offices are equipped with a modern cabling infrastructure which is adequate for supporting a modern campus network. However the Manchester headquarters uses a legacy…

Symbolism In English literature–“Gravity”

Symbolism is a good tool to use when we come across difficult abstract concepts such as life and death.For example, in her article entitled “Gravity”, David Leavitt tells us a story about how a mom named Sylvia encourages her HIV infected son Theo to live longer. When Theo started to have bad eye sight in his childhood Sylvia just let him wear her flamboyant glasses despite that people around them all think that Theo looks strange. After Theo grew up, between a drug that could sustain his life and a drug that could save his sight, Theo chose the second one. Sylvia worried that Theo would give up the hope for living, so she tried to encourage Theo to live…