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Design of a Noninvasive Pulse Rate Meter
The purpose of this project was to design a noninvasive pulse rate meter. The design team decided to create a four-stage system for identifying the pulse using optical sensors. The first stage is the input, where an infrared LED shines light at a patient's finger while a photodiode receives light on the other end. The change in blood volume in the patient's finger changes the light in the patient's finger, which creates a current across the photodiode. The second stage is the current-to-voltage converter, whereby the current created by the change in light levels effects a change in voltage. This voltage is passed to the third stage, which is filtering, which attenuates the low-frequency DC offset as well as the high-frequency noise. The final stage is amplification, whereby the filtered signal is amplified so that it may be read by other means, such as a microcontroller.
Cobi Finkelstein and Erin LaBounty
THE COURSE ABOUT WRITELATEX
The SMT1132 Course LaTeX course module is intended to train undergraduate science students in the use of scientific authoring tool for production of course assignments as well as dissertation reports. In this course students learn how to format documents, how to insert inline formula and math symbols, how to create displayed numbered mathematical formula, how to create tables and insert figures into a document properly. At the end of the course the students are ready to write papers of a quality that are ready for publication in a journal.
ORIGIN OF MASSLESS PARTILES
In this theory,we are going to describe how massless particles(photons,gluons) were originated just after bigbang.here i have done how a massive confined energy propagated and how it becomes any of the massless relativistic particle which travels at \(c\) speed.again i am going to describe ,what does emission of a photon really means.
Sarthak sourav dash
The second project for MATH 2400, Calculus II, at Fitchburg State. Estimating volume using definite integrals.