About: Ibrar Ayyub

Introduction We constructed an analog-to-digital guitar that captures an input signal and uses the waveform zero-crossings to determine whether the note is at the correct frequency. The hope was that this frequency tuner could be used in a home setting where each of us can tune our own guitars.� While a great number of students […]

Inspired perhaps by Harry Potter’s invisibility cloak, scientists have recently developed several ways—some simple and some involving new technologies—to hide objects from view. The latest effort, developed at the University of Rochester, not only overcomes some of the limitations of previous devices, but it uses inexpensive, readily available materials in a novel configuration.

A bright orange poison dart frog with a unique call was discovered in Donoso, Panama, and described by researchers from the Smithsonian Tropical Research Institute and the Universidad Autónoma de Chiriquí in Panama, and the Universidad de los Andes in Colombia. In the species description published this week in Zootaxa, it was named Andinobates geminisae for Geminis Vargas, “the beloved wife of [coauthor] Marcos Ponce, for her unconditional support of his studies of Panamanian herpetology.”

Introduction Our project is an electronic voting system. The system allows for quick and accurate voting electronically. The system uses a client/server architecture, which allows voters to cast ballots on the client terminal. Each client interfaces with the server, which keeps track of the entire system. High Level Design Our design is broken up into […]

Our System acquires several different sensor inputs, FM modulates each level by manipulating Direct Digital Synthesis increment values, transmits the resulting signal on a commercial FM radio band, and receives and decodes the original sensor levels. Introduction The problem of encoding multiple input signals into a finite bandwidth space is one that is common in […]

Introduction Sound Byte This project is a proof of concept diagnostic & testing board for use with the power board in the Cubesat Satellite and will be developed further to become a component of the CUSat Satellite. Summary of What We Did and Why This projects goal is to create diagnostics and testing hardware for […]

Introduction  The project involves an experiment in implementing a human-computer interface by tracking finger and wrist motions. Brief: “Ever wish you could control a computer just by moving your fingers or your hand?” We did. The primary goal is to design and build a functional prototype implementing an intuitive interface for a user to interact […]

Introduction Laser communications systems are wireless connections through the atmosphere. They work similarly to fiber optic links, except the beam is transmitted through free space. While the transmitter and receiver must require line-of-sight conditions, they have the benefit of eliminating the need for broadcast rights and buried cables. Laser communications systems can be easily deployed […]

Introduction Our electronic drawing board integrates an easy human interface with a standard electronic display; specifically the a touchpad and an oscilloscope or TV screen. The rationale behind the drawing board is to be able to create a free hand sketch using the touchpad and have a real time display on a screen which can […]

Biochemists working at the University of California, San Diego, have developed a program that predicts the placement of chemical marks that control the activity of genes based on sequences of DNA. They describe their analysis and report results from its application to human embryonic cells in a paper published in Nature Methods online September 21.