Posts by Ibrar Ayyub:
Thunder god vine used in traditional Chinese medicine is a potential obesity treatment
Posted on: 21 May 2015
An extract from the thunder god vine, which has a long history of use in traditional Chinese medicine, reduces food intake and causes up to a 45% decrease in body weight in obese mice. The weight-loss compound, called Celastrol, produces its potent effects by enhancing the action of an appetite-suppressing hormone called leptin
Acoustic Data Modem Using Atmega644
Posted on: 20 May 2015
Introduction For our final design project, we designed and built a prototype acoustic modem to serve as a physical transport layer for digital communications. It converts between a digital communications scheme (RS-232) and an acoustically coupled communications scheme of our own design. Our project consists of a pair of such modems to operate as transmit/receive […]
EAGLE ULPs Every User Should Know
Posted on: 19 May 2015
A ULP (User Language Program) is a feature designed into EAGLE to allow users to generate their own processes to automate tasks that would otherwise be tedious and time consuming. While most users know that this functionality exists, very few want to write their own script. A casual user would have to dump far more […]
Adaptive Alarm Clock Using Atmega644
Posted on: 19 May 2015
Introduction Elevator Pitch / 1-second Description An adaptive alarm clock that chooses the optimal time to wake up the user using an accelerometer that detects his/her body movements. Goals The goal of our final project was to create an alarm clock that is able to detect your sleep patterns and wake you up at the […]
Zigbee Wireless Relay Control and Power Monitoring System Using Atmega644
Posted on: 18 May 2015
Introduction We designed a system for wirelessly controlling relays and monitoring current. This is used for a home load simulation. By wirelessly turning relays on and off by sending commands from a PC to a microcontroller we can change the total load (current) to our simulated home. For wireless communication, we used XBee Series 2 […]
Low-Cost Portable Potentiostat for Biosensing Applications Using Atmega644
Posted on: 17 May 2015
Introduction This project involves the design and construction of a low-cost portable potentiostat capable of performing cyclic voltammetry on three-electrode electrochemical systems. A potentiostat is an instrument used in chemical and biological tests that controls the voltage between two electrodes, working and reference, at a constant value. Chemical and biological tests are typically run in […]
Extremely young stellar clump in the distant universe
Posted on: 15 May 2015
As part of an observing program carried out with the Subaru Telescope and the Hubble Space Telescope, a group of researchers from the Service d’Astrophysique- Laboratoire AIM of CEA-IRFU led by Anita Zanella discovered the birth cry of a massive star-forming clump in the disk of a very distant galaxy. This giant clump is less than 10 million years old, and it is the very first time that such a young star-forming region is observed in the distant universe
Point of Sale Terminal Using Atmega644
Posted on: 15 May 2015
Introduction Point of Sale systems typically can cost up to thousands of dollars we do it very simply for seventy. For small stores, point of sale systems can be very expensive. One thousand dollars for a piece of machinery whose functionality is quintessentially simple can be exuberant. Our goal was to design a point of […]
FM Radio Receiver Using Atmega644
Posted on: 14 May 2015
Introduction The goal of our project was to design a low cost and user-friendly FM radio receiver. Our project uses a FM receiver integrated circuit to perform the pre-processing units that are needed before the desired audio signals can be heard. The radio frequency is too fast for processing with our available hardware and the […]
Subaru Telescope observes superflare stars with large starspots
Posted on: 13 May 2015
A team of astronomers has used the High Dispersion Spectrograph on the Subaru Telescope to conduct spectroscopic observations of Sun-like “superflare” stars first observed and cataloged by the Kepler Space Telescope. The investigations focused on the detailed properties of these stars and confirmed that Sun-like stars with large starspots can experience superflares.
