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SMT Thermal Design Mistakes
This is the ubiquitous TO-220 through-hole package that I’m sure we’re all familiar with. This device in particular is the popular 1117 low-drop-out voltage regulator manufactured by ST. And the first thing you’re probably going to calculate when using one of these is the thermal performance and so the data sheet here gives us these figures for the package thermal resistances. With this here junction to ambient figure we can calculate the die temperature for a given amount of power or conversely the power at which the regulator reaches Tj max.
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GS20(X) VFD: Remote Keypad Upgrade
The GS20 family of variable frequency drives have tons of features, but one of my favorites is they can use a keypad from the GS4 family of variable frequency drives. Why is that such a big deal? Let’s do a side by side comparison and you will see. To do that, let’s use the GS20 drive’s keypad when we are locally working on the drive and we’ll use the GS4 keypad as a remote keypad.
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Husky Reviews the Pumpkii Pet Robot!
Hey everyone! As some of you know, I have a new family member, meet Momo, she’s a 1-year-old rescue husky that was abandoned twice, before Shenzhen local and fellow YouTuber Daniel Dumbrill stepped in, and brought her to come live with me. The link to that video with her back story is in the description box. Now, of course, Shenzhen is really hot and does not have much of a winter, so it’s not the most suitable place for a snow dog it would be pretty irresponsible to get a husky deliberately if you lived here.
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Applying Theory to Practice — and Practice to Theory
JEFF WELSER: Hi, team, and welcome. I’m Jeff Welser, the vice president of Exploratory Science here at IBM Research, and I’m really happy today to start what’s going to be a series of periodic talks we’re going to be doing over the next several months. Hopefully, many of you got to join our first Distinguished Speaker Series with Yoshua Bengio a few weeks ago. And, of course, we’ll continue bringing in distinguished speakers from outside, but as IBM researchers, we actually have the pleasure each day of working and collaborating with an amazing array of the world’s most brilliant minds right here in the labs.
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[Dashboards]: View Data of the Dashboard Elements
Create or Open Dashboard Click Preview to Show Dashboard Hover Cursor on the Element and Click View Data The Data Used in the Current Element Will Be Displayed In View Data Window The View Data Button May Disable for Each Element Select Element and Click Interaction Button Uncheck Show ‘View Data’ Parameter and Click OK Now The Element Don’t Have View Data Button in Preview Check Show ‘View Data’ Parameter in Interaction Menu to Enable View Data Button for Current Element .
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Can You See a Thought? Neuronal Ensembles as Emergent Units of Cortical Function
DARIO GIL: All right. Welcome, team. Good afternoon and good morning in Almaden. We’re livestreaming the event as well. And good day, everybody, for those of you who are connecting remotely. I’d like to welcome all of you to the second seminar of the year of our distinguished speaker series. Really, it’s my great pleasure today to welcome Professor Rafael Yuste. Rafael is a leading neuroscientist and professor of biological sciences at Columbia University.
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What defines the quality of a DAC?
The difference in quality between the cheapest DAC and the most perfect DAC is enormous, provided you use a high quality playback system. But what makes the most perfect DAC the most perfect? A digital to analog converter has a job that is easily described: it has to render digital samples in corresponding voltages at precise intervals. But that’s perhaps somewhat abstract and some explanation might be in order.
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The Future of Open Source pt 1 [Cloud2030 Aug 27]
Rob Hirschfeld: Hello, this is Rob Hirschfeld, and welcome to the cloud 2030 discussion on August 27. This was a spirited all our conversation about open source and how open source is going to impact the future or not impact the future depending on your point of view. Check it out, of course, put the discussion first and then our hallway track is at the end. So enjoy.
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Biology of SARS-CoV-2: Detection | HHMI BioInteractive Video
[crickets] [footsteps] [cymbal plays] [chime] [music plays] There are several ways to test whether someone has been infected with SARS-CoV-2. Some tests can detect if you have an active infection, or an infection that is happening right now, and others can detect if you’ve had an infection in the past and recovered. To determine whether you have an active infection, doctors can look for the presence of the virus in your body.
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Biology of SARS-CoV-2: Evolution | HHMI BioInteractive Video
[crickets] [footsteps] [cymbal plays] [chime] [music plays] The SARS-CoV-2 genome is a single strand of RNA, with genes that encode fewer than 30 proteins. This is less than 0.1% of the proteins encoded by the human genome. The virus’s genome is made of about 30,000 building blocks called nucleotides, which are represented by the letters A, U, C, and G. The unique sequence of nucleotides in a genome determines the proteins it encodes.