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Education Engineering Engineers Events Professional Technology

AI and Knowledge Acquisition Webinar

Dr. Carlo Sapijaszko gave a webinar talk on the “The Intersection of AI and Knowledge Acquisition” on Friday, 2024 January 11. A recording of the webinar and slides from his talk can be found on our Recordings page.

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Activities Engineering Membership Social Twin Cities Section

Coffee and Donuts

IEEE Twin Cities Section members gathered to enjoy coffee and some high-zoot (as per Eric) goodies last Saturday morning. It was an enjoyable get-together.

All photographs taken by Bruce Hanson.

Categories
Engineering Sustainability Technical Technology

High-Sodium Diet?

Looks like sodium-ion battery development is moving quite quickly. In addition to the announcement by Northvolt last week, several Chinese companies are also involved in the development, production, and use of sodium-ion battery products.Seems rather ironic since the original article I saw touted a reduction of supply dependency on China (which is a big producer of lithium-ion batteries) due to use of sodium-ion technology.

Sodium-ion battery chemistry provides lower energy density compared to lithium-ion battery chemistry. This means that for the same quantity of stored energy a sodium-ion battery will be larger/heavier than a lithium-ion battery. However, sodium-ion technology also costs less than lithium-ion technology. This makes a sodium-ion chemistry more attractive for energy storage applications where lower cost is a higher priority than size and weight constraints. An example of such an application would be supplemental energy storage for the power grid.

Battery size and weight are relatively more important for electric vehicles. So lithium-ion technology is likely to persist for vehicular applications. For vehicles where a smaller quantity of stored energy (which translates to a shorter range of travel) is acceptable, sodium-ion technology may still be useful. Chery, a Chinese car maker, has said that it will use CATL’s sodium-ion batteries to power its shorter-range vehicles. China-based CATL is reputedly the world’s largest manufacturer of battery cells for electric vehicles.

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Social

Incredibly overdue!

Minnesota library book is returned after 100 years.

“There’s been a time or two when something has come back and maybe it has been checked out for 20 or 30 years, but nothing where it looks like it has been out for some 100 years,” [a library staff member] said to MPR

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Engineering Humanities Social

Think You Are A Pretty Good Photographer?

Enter the World Standards Day Photo Contest to highlight how technology, driven by global standards, can help protect and preserve our planet. You could win a $500 prize.

Learn more here: “Framing the Future of Technology for Good” Photo Contest

The contest is open from 14 October 2023 at 8:00 AM ET through 14 December 2023 at 11:59 PM ET.

Categories
Events News Region 4 Social

A Few Notes

Hello! You may have noticed that in addition to website pages we now have blog posts. This should (in principle) help to keep site content fresh. (It’s always interesting though, right?) If you are interested in contributing posts, please get in touch with me using the “Contact Us” link in the top menu bar.

There are quite a few virtual meetings taking place this week, so check out the full list here. The one on career happiness (November 15) should be interesting. And if you are a hobbyist, how about this one?

Even better, come to our webinar on Thursday, November 16, when Jack will talk about FORTH-like compilers. You can apply for 1 PDH (Professional Development Hour) after attending!

Oh! You can also take a peek at the IEEE Region 4 Q3 newsletter here.

And finally, you can comment on the posts! Click the comment icon below the heading to add your comment.

Posted: 2023 November 13

Categories
Events Social

Coffee Hour Follow-Up

We had an enjoyable coffee-hour. About 15 people attended and introduced themselves. Since everyone was meeting each other for the first time, the conversation started slowly but became animated and stimulating quite quickly. The event went well so we are going to hold another coffee hour next month. Do join us for that one.

Posted: 2023 November 13