In honour of Science Literacy Week (This week! September 17th-23rd!) the McGill Libraries have put together an amazing array of events and exhibits. Check out events, dates, times, and details here.
If you can’t attend any of the events, swing by the Schulich Library and check out our Science Literacy Reads display. We have a slew of both fiction and non-fiction on science and science literacy that you can check out and read in your own time. It’s not all biology either, we have physics, architecture and engineering, astronomy, artificial intelligence, ornithology, genetics, history of medicine, and more!
Some of the titles on display include:
Don’t be afraid to flip a book open! Often we don’t have the original covers (slip covers get removed), so it’s trite but true: Don’t Judge a Book by It’s Cover!
And after you are done browsing, check out our exhibit Traveling through Space and Time!
Once again I have the pleasure of announcing the next Communication in Engineering (CCOM 206) Excellence in Written Communication Award. Alexandre Tessier is the Fall 2017 winner for ‘Comparative Analysis of Interference-Free Alternatives to Wi-Fi’ (yay!).
Current Wi-Fi technologies occupy oversaturated 2.4 GHz and 5GHz frequency bands. In areas with high router density, this results in poor Wi-Fi performances, and, especially, slow data transfer rates at a time when demand for high-speed networks is rising. To minimize these effects, new technologies taking advantage of the availability of higher frequencies have been developed.In particular, Li-Fi and WiGig aim to transfer data wirelessly at rates faster than Wi-Fi and, more importantly, without interference. This paper assesses the viability of these two technologies as interference-free alternatives to Wi-Fi based on 3 standard networking attributes: data transmission capabilities, security, and vulnerability to interference. The analysis concludes that Li-Fi can transfer data at higher rates than WiGig, can be used to implement location-based security levels, and, unlike WiGig, is impervious to interference from neighbouring cells. For the aforementioned reasons, Li-Fi is the most promising candidate for an alternative to Wi-Fi, vastly outperforming current implementations of WiGig.
Download the full paper from the University’s open access repository.
The Communication in Engineering (CCOM 206) Excellence in Written Communication Award winner has been announced for the combined Winter/Summer 2017 terms (insert drum roll): Albert Kragl!
Alternatives to Lithium-Ion Batteries for Electric Vehicles
With man-made climate change becoming increasingly severe every year, the need for vehicles powered by alternative energy sources is now greater than ever. Although there are electric vehicles commercially available today, their limited driving range and high price makes them unappealing to many consumers. In order to move past these limitations, researchers have begun investigating different types of batteries with the goal of finding a battery that can reliably store more energy than a traditional lithium-ion battery. This paper analyzes the feasibility of two battery types—lithium-sulfur and lithium-air—as potential replacements for lithium-ion batteries in electric vehicles. Although both batteries demonstrate high theoretical energy densities, the lithium-air battery has a much higher practical energy density when compared to lithium-sulfur, as well as a lower environmental impact and a greater number of charge cycles. The lithium-air battery also demonstrates a higher energy density and lower environmental impact when compared to lithium-ion. These results make lithium-air technology the best candidate to replace lithium-ion batteries in the near future.
The full article PDF is available from McGill’s open access institutional repository, eScholarship.