Tootfinder

First Pitch – 4/3/24
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Microcontroller layout on the KU test board.
This is a STM32L431 in the UFBGA100 package (500 μm pitch).
It's not technically compatible with OSHPark rules (125 μm trace/space) as you need 100 μm trace/space to fan out the second ring of balls, but it's for such a short distance that I think there's a good chance I'll get away with it. This is a quick and dirty prototype and I only need one of the three boards to be usable anyway. And if the MCU doesn't work …

First Pitch – 4/3/24
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Adaptive Integral Sliding Mode Control for Attitude Tracking of Underwater Robots With Large Range Pitch Variations in Confined Space
Xiaorui Wang, Zeyu Sha, Feitian Zhang
https://arxiv.org/abs/2405.00269

Adaptive Integral Sliding Mode Control for Attitude Tracking of Underwater Robots With Large Range Pitch Variations in Confined Space
Underwater robots play a crucial role in exploring aquatic environments. The ability to flexibly adjust their attitudes is essential for underwater robots to effectively accomplish tasks in confined space. However, the highly coupled six degrees of freedom dynamics resulting from attitude changes and the complex turbulence within limited spatial areas present significant challenges. To address the problem of attitude control of underwater robots, this letter investigates large-range pitch angle…

Could the Chiefs be leaving Arrowhead Stadium? Kansas making pitch for franchise to cross state line

https://www.cbssports.com/nfl/news/could-t…

Could the Chiefs be leaving Arrowhead Stadium? Kansas making pitch for franchise to cross state line
The Chiefs have an option to leave Missouri for Kansas

https://mozilla.social/@DMX/112368815024369743 “Joe Biden is famously the guy democrats got to balance out their pitch for a black president. his role as VP was a reminder to white america that the DNC hadn't given up on their commitment to racism”
Yet in Nov. we’re …

Deep reinforcement learning of airfoil pitch control in a highly disturbed environment using partial observations
Diederik Beckers, Jeff D. Eldredge
https://arxiv.org/abs/2404.01506

Deep reinforcement learning of airfoil pitch control in a highly disturbed environment using partial observations
This study explores the application of deep reinforcement learning (RL) to design an airfoil pitch controller capable of minimizing lift variations in randomly disturbed flows. The controller, treated as an agent in a partially observable Markov decision process, receives non-Markovian observations from the environment, simulating practical constraints where flow information is limited to force and pressure sensors. Deep RL, particularly the TD3 algorithm, is used to approximate an optimal cont…

Committee to pitch kickoff rule change to owners https://www.espn.com/nfl/story/_/id/39610600/nfl-competition-committee-pitch-kickoff-rule-change

NFL Competition Committee to pitch kickoff rule change - ESPN
The NFL's Competition Committee is expected to pitch an alternative rule to kickoffs that will make returns a part of the game again.

Exploring Maximum and Average Pitch Velocity Separation
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Starting Pitcher Streamer Rankings Fantasy Baseball: 5/2 & 5/3
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