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1. Extending Battery Life via Load SExtending Battery Life via Load Sharing in Electric Aircraft

   https://doi.org/10.2514/6.2024-2154  

   Anthony, George ; Peskar, Jarrett ; Downey, Austin R.J. ; Booth, Kristen ( January 2024 , AIAA SCITECH 2024 Forum)

   Electric Aircraft have the potential to revolutionize short-distance air travel with lower operating costs and simplified maintenance. However, due to the long lead-time associated with procuring batteries and the maintenance challenges of replacing and repairing batteries in electric aircraft, there are still unanswered questions related to the true long-term operating costs of electric aircraft. This research examines using a load-sharing system in electric aircraft to optimally tune battery degradation in a multi-battery system such that the battery life of a single battery is extended. The active optimization of energy drawn from multiple battery packs means that each battery pack reaches its optimal replacement point at the same time; thereby simplifying the maintenance procedure and reducing cost. This work uses lithium iron phosphate batteries experimentally characterized and simulated in OpenModelica for a flight load profile. Adaptive agents control the load on the battery according to factors such as state of charge, and state of health, to respond to potential faults. The findings in this work show the potential for adaptive agents to selectively draw more power from a healthy battery to extend the lifespan of a degraded battery such that the remaining useful life of both batteries reaches zero at the same time. Simulations show that dual battery replacement can be facilitated using the proposed method when the in-service battery has a remaining useful life of greater than 0.5; assuming that the replacement battery it is paired with has a remaining useful life of 1.0. Limitations of the proposed method are discussed within this work. 

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2. Quantifying the effects of quadrupolar sinks via 15 N relaxation dynamics in metronidazoles hyperpolarized via SABRE-SHEATH

   https://doi.org/10.1039/D0CC03994B  

   Birchall, Jonathan R. ; Kabir, Mohammad S. ; Salnikov, Oleg G. ; Chukanov, Nikita V. ; Svyatova, Alexandra ; Kovtunov, Kirill V. ; Koptyug, Igor V. ; Gelovani, Juri G. ; Goodson, Boyd M. ; Pham, Wellington ; et al ( January 2020 , Chemical Communications)

   15 N spin–lattice relaxation dynamics in metronidazole- 15 N 3 and metronidazole- 15 N 2 isotopologues are studied for rational design of 15 N-enriched biomolecules for signal amplification by reversible exchange in microtesla fields. 15 N relaxation dynamics mapping reveals the deleterious effects of interactions with the polarization transfer catalyst and a quadrupolar 14 N nucleus within the spin-relayed 15 N– 15 N network. 

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3. High-Speed Differential Via Optimization using a High-Accuracy and High-Bandwidth Via Model

   https://doi.org/10.1109/EMCSIPI50001.2023.10241408  

   Li, Chaofeng ; Cai, Kevin ; Mathew, Manish Kizhakkeveettil ; Mousavi, Seyedmehdi ; Ouyang, Muqi ; Sen, Bidyut ; Kim, DongHyun Bill ( July 2023 , 2023 IEEE Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMC+SIPI))
4. Harnessing Structures in Big Data via Guaranteed Low-Rank Matrix Estimation: Recent Theory and Fast Algorithms via Convex and Nonconvex Optimization

   https://doi.org/10.1109/MSP.2018.2821706  

   Chen, Yudong ; Chi, Yuejie ( July 2018 , IEEE Signal Processing Magazine)
5. Do multinuclear 3d metal catalysts achieve O–O bond formation via radical coupling or via water nucleophilic attack? WNA leads the way in [Co4O4]n+

   https://doi.org/10.1016/j.checat.2021.03.013  

   Ezhov, Roman ; Ravari, Alireza Karbakhsh ; Bury, Gabriel ; Smith, Paul F. ; Pushkar, Yulia ( May 2021 , Chem Catalysis)

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