Rachel Johnson

Learn how Virgin Orbit simulated separation events for the LauncherOne spacecraft to ensure sufficient clearance between separating structures #modelbaseddesign #aerospace #MATLAB #Simulink https://spr.ly/6049oHWXh

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Advanced Power for Extreme Space Exploration! Consider submitting an abstract to this special session we are putting together at the AIAA SciTech 2025 Conference. Go to aiaa.org/SciTech to submit your abstract, and select “Other Topics in Aerospace Power Systems."

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Just obtained the OMG Certified Modeling Professional - Model Builder Fundamental cert! Fun preparing for this one, I really gained some new perspectives on the SysML language.

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Have questions about how graphene can improve the mechanical performance of your composite parts? Join us for a Q&A session on June 12th!

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https://lnkd.in/e8NnCvVc A measurement is a realization of a random variable. The only thing we can possibly "know" is what distribution it maybe came from. 

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In this article by Dann Hayes, Director of Operations & Testing, we highlight Direct Field Acoustic Testing technology in human spaceflight applications. Find out how ARS is pushing the boundaries with scalable and efficient acoustic testing systems that are now being embraced by the human spaceflight sector. From rigorous system checks to meticulous planning, learn why Direct Field Acoustic Testing is becoming the preferred method for ensuring the safety and reliability of space missions. Learn more how ARS is setting new standards in human spaceflight safety with DFAN technology: https://lnkd.in/egkmCUmF #directfieldacoustictesting #aerospace #spacetech #directfieldacousticnoise #dfan #environmentaltesting

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Just one of the the Innovations that we do here at Real-Time Innovations: RTI is pioneering MBSE work in cybersecurity models and anomaly detection. Ask any RTI rep you know for a demo of this capability! #MOSA #MBSE #DataCentric #ThisIsDDS

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Hi all, I posted a video summarizing my 2019 book Plasma Simulations by Example: https://lnkd.in/gVNz53x5. The audio quality could use an improvement but this is the best I could figure out using Kdenlive and the camera built-in microphone. Next time will need to use a standalone mic and combine in postprocessing.

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Vision transformer architectures have been introduced into Spiking Neural Networks to explore low-power implementation options using neuromorphic computing hardware. This latest paper from CVPR2024 introduces a novel spiking self-attention layer, called Dual Spike Self-Attention (DSSA) with a scaling method for larger feature maps. DSSA is then combined with ResNet type multi-stage network architecture to introduce a new type of spiking vision transformer, named as SpikingResformer, which achieves an impressive top-1-accuracy of 79.4% on ImageNet. #Spiking #Neural #Networks #Spiking #Vision #Transformers #Spiking #Self-#Attention

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Howdy y'all! Almost 7 weeks since its launch, it's time for some updates on my little personal side project -- the low-speed, 3D-printable "Modular Wind Tunnel for STEM Education": 1) The wind tunnel has this past week been featured on the Printables homepage carousel, and is now the #1 trending Printables Store download over the last 30 days. Thanks to everyone who has purchased, shared, or joined my Club. I really appreciate all the support. 2) At least 5 universities are building the STEM wind tunnel for various purposes. One aims to use it as a career-day/outreach/recruiting aid. Another is having a team of high-school interns build one, characterize it, and make improvements as their summer project. A third is building complete assemblies to donate to several high schools local to their area, and they plan to include experiments supported by CFD simulations. 3) A few teams in the internationally-popular "F1 in Schools" program have expressed interest. I'm exploring how to scale up the design to be a low-cost alternative to the Denford Air Trace tunnel offered by that program. 4) Last week, I met with the Adventure Science Center in Nashville to demo the assembled wind tunnel and its accessories. They were very impressed and excited to look for ways to work together. Initially, we may build a kit for their "I^2 Makerspace", home to several 3D-printers and STEM workshops. If that is successful, we may work to build a much larger, more-robust version to join their "Physics in Action" exhibit as a permanent installation. 5) I have submitted an abstract to present a paper on the project at AIAA SCITECH in January as a part of the Aerospace Education & STEM Outreach session. I hope to have a few great success stories to share by Jan 2025 - please share! 6) I will be exhibiting at the TN Maker Fest in Nashville in September. See you there!? 7) Work on several big upgrades continues! Stay tuned for a settling chamber design compatible with 180mm build plates, an Arduino-based lift-drag force balance, and more LabPacks! Thanks again all!

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AI has taken the world by storm. Across industries, we see the challenges of integrating AI into best practices. Dr. Peter Beling and co-principal investigators within the Systems Engineering Research Center recently published "Trusted Artificial Intelligence Systems Engineering Challenge." This research focuses on advancing systems engineering methods to ensure trust in AI-enabled systems through design, operation, and simulation-based evaluations. Takeaways: 1. Address both system design and operational strategies for AI-enabled systems. 2. Use simulations to evaluate effectiveness across diverse system architectures. 3. Foster cross-team learning to enhance innovative solutions. 4. Integrate risk-based monitoring for operational AI trust. 5. Develop workforce skills for managing AI in integrated systems. #mbse #complexsystems #systemsengineering #catia #modeling #digitaltwin #innovation #dassault #MBSEtraining #incose #ai

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The recordings of the IEEE Geoscience and Remote Sensing Society (GRSS) school on High Performance and Disruptive Computing in Remote Sensing are now available on YouTube! The school was organized by the Earth Science Informatics Techincal Committee. You can learn more about the GRSS activities at https://lnkd.in/g3UzNzce #cloudcomputing #quantumcomouting #AI #foundationmodels

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Space debris is a growing concern for the industry, especially given the projected increase in the number of satellites that will be on-orbit by the close of this decade. In this SatMagazine article, Joe Chan takes a detailed look at the financial implications of space debris and what we can do to mitigate them. Read the full article: https://lnkd.in/eyTuSMAb

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Last week I had an opportunity and distinction to participate in the Navy DE (Digital Engineering) and M&S (Modeling & Simulation) Summit vendor panel in Charleston SC. The panel had representatives from Aras, Dassault Systèmes, Intercax, and Ansys, and we were fielding questions from the panel’s excellent moderator, Joy Newlin, and from the audience. We spoke to concepts of data across lifecycles (product, domain of like products, and across domains within a larger enterprise) and ASOT (Authoritative Source of Truth) across these lifecycles of lifecycles. The focus was on digital transformation trends in engineering and Modeling & Simulation and how technology is used to support customer demands with these trends. The key areas of interest? - How to accelerate tool and methodologies adoption rates and change the mindset of the practitioners - What tools and methodologies should be used and how to standardize them - What are the existing and functional tool-tool integrations vs the promise of digital thread and ASOT - What are the tool vendors doing about it all It was a great meeting and a lively discussion. My take – DE (as in DoDI 5000.97) is not a tool, it’s a strategy. So don’t let the tools drive the strategy, use the strategy to drive the tools and the tool vendors! To learn more about Aras and how it can help you to drive your digital thread strategy, follow this link https://lnkd.in/erx4_PAn #digitalengineering #digitalthread #modeling #simulation #ASOT

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