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Easter Presentation

Transcript: Feedthrough Cancellation Open Loop Characterisation 10 micron thick DC bias with AC signal Components: Transimpedance amplifier Feedthrough cancellation stage Bandpass filter Comparator Actuation & Sensing Principles Oscillator Circuit Implementation Actuation 1-port 2-port Differential drive Sensing Capacitive Piezoresitive Deviation = ±3 Hz Results Nodes = blue Antinodes = red Project Stages Filter-based Gravimetric Method (EU) Implement oscillator on one PCB Test with airborne particulates Adsorption Desorption Thermal compensation Functionalisation for specificity Results Results Detecting particulates with a portable MEMS resonator Electroacoustic Biosensors Combining Circuit Stages AQEG, “Particulate Matter in the UK: Summary”, Defra, London, 2005 C. Stanger, “DEFRA Report: Intercomparison between the TEOM analyser and the European reference sampler for the determination of PM10 concentrations”, Ref: CS/AQ/AD102099, University of Birmingham, 2004 P. S. Waggoner, H. G. Craighead, “Micro- and Nanomechanical Sensors for Environmental, Chemical, and Biological Detection”, Lab Chip, 2007, 7:1238–1255 A. T.-H. Lin, J. E.-Y. Lee, J. Yan, A. A. Seshia, “Methods for enhanced electrical transduction and characterization of micromechanical resonators”, Sensors and Actuators A, 2010, 158:263-272 Y.-W. Lin, S. Lee, S.-S. Li, Y. Xie, Z. Ren, C. T.-C. Nguyen, “Series-Resonant VHF Micromechanical Resonator Reference Oscillators”, IEEE J. Solid-State Circuits, 2004, 39:2477-2491 Open Loop Testing By Ben Kirby Supervised by Dr Ashwin Seshia and Abhinav Prasad SE Future Work Remove the effect of parasitic capacitance Differential piezoresistive sensing Device Topology Comparator Requirements: Loop gain > 1 Loop phase = multiple 360 deg Phase drop at resonance > 90 deg References MEMS Film Bulk Acoustic Resonator Bandpass Filter Tapered Element Oscillating Microbalance (UK) WG Motivation Resonator Sensitivity = 3 Hz/ng Circuit Design

Easter presentation

Transcript: The history of Easter When did Easter start? when did Easter start? The first Christians, Jewish and Gentile, were certainly aware of the Hebrew calendar. Jewish Christians, the first to celebrate the resurrection of Jesus, timed the observance in relation to Passover. Direct evidence for a more fully formed Christian festival of Pascha (Easter) begins to appear in the mid-2nd century. How did it start? How did it start? The first Christians, Jewish and Gentile, were certainly aware of the Hebrew calendar. Jewish Christians, the first to celebrate the resurrection of Jesus, timed the observance in relation to Passover. How has it evolved? How has it evolved? While millions of Christians around the world celebrate the Easter holidays, its date has been a matter of contention since it began. By the second century, it was accepted as a celebration of disciples and other believers. How do different countries celebrate it ? How do different countries celebrate it? Place your logo here Easter in the Netherlands is known as Pasen in Dutch. The occasion is more of a festive and family oriented day in the Netherlands. The Easter celebrations are marked by the carnival that is held before the Lent season. The main highlights of the carnival are dances, parades and masquerade balls. Go through the article to know more about the traditions and celebrations of Easter in Holland. What are some of your traditions? What are some of your traditions? One of the traditions me and my family do is that we go to church and then after church we go out to eat with family and friends. Favorite Easter memories? Favorite Easter memories ? One of my favorite Easter memories is when we had a family get together and my sister and i and our cousins we were playing and cracking eggs on our heads. Favorite Tradition? favorite tradition? My favorite tradition is when my family and i make cascarones. My favorite Easter food is macaroni and cheese? Favorite Easter food? Favorite Easter food?

Easter Presentation

Transcript: Easter Presentation When did Easter start? Easter started on Sunday, April 12, 2020. The day people celebrate Jesus Christ. How did it start? For Christians, Easter is associated with the crucifixion and resurrection of Jesus Christ approximately 2,000 years ago. How has it evolved? The naming of the celebration as “Easter” seems to go back to the name of a pre-Christian goddess in England, Eostre, who was celebrated at beginning of spring. The only reference to this goddess comes from the writings of the Venerable Bede, a British monk who lived in the late seventh and early eighth century. How do different countries celebrate it? In Europe, Easter is celebrated by lighting giant bonfires on hilltops and in churchyards on Easter Eve while in England it is celebrated through the exchange of Easter Eggs and other gifts like clothes, chocolates or holidays packages. Easter bonnets or baskets are also made that have fillings like daffodils in them. What are some of your traditions? Some of my traditions for Easter are finding Easter eggs or cracking Cascarones and that is really it. Favorite Easter memory My favorite Easter memory is when I found money in my egg hunt and then I lost it then somebody got mad at me because it was $20. Favorite Tradition My favorite tradition is when we have a Easter egg hunt and find one egg that has money it it. Favorite Easter Food My favorite Easter food is eating Turkey and some type of Pasta my grandma makes and its really good but we don't eat that much for Easter.

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