The VERITAS-Stellar Intensity Interferometry (VSII) survey of Stellar Diameters

Kieda, D. B.; Davis, Jonathan; LeBohec, Tugdual; Lisa, Mike; Matthews, Nolan; Adams, C.; Archer, A.; Benbow, W.; Brill, Ari; Buckley, J. H.; Capasso, M.; Christiansen, J. L.; Errando, M.; Falcone, A.; Farrell, K. A.; Feng, Q.; Foote, Gregory; Fortson, L.; Furniss, A.; Gent, A.; Giuri, C.; Gueta, O.; Hanna, D.; Hervet, O.; Holder, J.; Hona, B.; Humensky, T. B.; Jin, Wei; Kaaret, P.; Kertzman, M.; Kleiner, T. K.; Kumar, S.; Lang, M. J.; Lundy, M.; Maier, Gernot; McGrath, C.; Moriarty, P.; Mukherjee, R.; Nieto, D.; Rosillo, M. Nievas; O’Brien, S.; Otte, A. N.; Patel, Sahaj; Patel, Sameer; Pfrang, K.; Pohl, M.; Prado, R. R.; Pueschel, E.; Quinn, J.; Ragan, K.; Reynolds, P. T.; Ribeiro, D.; Roache, E.; Ryan, Jim; Sadeh, I.; Santander, M.; Sembroski, G. H.; Shang, R. C.; Tak, D.; Vassiliev, V. V.; Weinstein, A. J.R.; Williams, Darius; Williamson, T. J.

doi:10.22323/1.395.0803

Cited by 1,065 publications

(1,605 citation statements)

References 2 publications

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“…However, in most of the cases, the implication was to employ FA as a synthon in organic transformations or as a transfer hydrogenation agent and less attention was paid for its application as an LOHC. [ 50 ] In 2008, independent reports from the Beller and the Laurenczy groups demonstrated the incremental effects of additives on FA dehydrogenation to achieve higher TONs and TOFs albeit at the cost of reducing the volumetric capacity. [ 51 ] Many combinations of metal precursors/ligands were then evolved to obtain high efficiency towards FA dehydrogenation.…”

Section: Formic Acid To Powermentioning

confidence: 99%

Formic Acid to Power towards Low‐Carbon Economy

Dutta

Chatterjee

Cheng

et al. 2022

Advanced Energy Materials

107

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The corresponding global annual carbon dioxide (CO 2 ) emissions had also increased from 23.1 gigatonnes of CO 2 (Gt CO2 ) in 2000 to 33.2 Gt CO2 in 2018. The excessive reliance on fossil fuels has caused the atmospheric CO 2 concentration to increase from the pre-industrial 280 ppm in the 18th century to the annual average of more than 410 ppm nowadays, which is found to be positively correlated to climate change. [2] To alleviate the environmental issues and to find viable alternatives for depleting fossil fuel reserves, the development and largescale deployment of clean and sustainable energy systems is of utmost importance. The development of suitable energy carriers is necessary to enable energy storage and distribution and to overcome the deficiency due to the intermittency of renewable energy sources such as solar and wind power. The use of H 2 has a great potential to diversify energy sectors and to prepare for the future implementation of low-carbon electricity and renewable energy. H 2 fuel cell (FC) technology is considered mature and regarded as the only technology to realize mobility without change of habits. As stated in the 2019 report by International Energy Agency to G20, H 2 is expected "to play a key role in a clean, secure and affordable energy future." [3] However, due to the lack of viable technologies for safe, efficient, and economical storage and transportation of H 2 , the applications of hydrogen have significantly been limited. [4] The storage and utilization of low-carbon electricity and decarbonization of transportation are essential components for the future energy transition into a low-carbon economy. While hydrogen has been identified as a potential energy carrier, the lack of viable technologies for safe and efficient storage and transportation of H 2 greatly limits its applications and deployment at scale. Formic acid (FA) is considered one of the promising H 2 energy carriers because of its high volumetric H 2 storage capacity of 53 g H 2 /L, and relatively low toxicity and flammability for convenient and low-cost storage and transportation. FA can be employed to generate electricity either in direct FA fuel cells (FCs) or indirectly as an H 2 source for hydrogen FCs. FA can enable large-scale chemical H 2 storage to eliminate energy-intensive and expensive processes for H 2 liquefaction and compression and thus to achieve higher efficiency and broader utilization. This perspective summarizes recent advances in catalyst development for selective dehydrogenation of FA and high-pressure H 2 production. The advantages and limitations of FA-to-power options are highlighted. Existing life cycle assessment (LCA) and economic analysis studies are reviewed to discuss the feasibility and future potential of FA as a fuel.

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Section: Formic Acid To Powermentioning

confidence: 99%

Formic Acid to Power towards Low‐Carbon Economy

Dutta

Chatterjee

Cheng

et al. 2022

Advanced Energy Materials

107

View full text Add to dashboard Cite

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“…Cardiac surgery is recommended in patients with aortic valve stenosis and left ventricle (LV) dysfunction or significant ventricular arrhythmias (VA) even if they are asymptomatic (Priori et al, 2001) and can reduce the risk for SCD. Despite vast advances in surgery techniques, post-surgery mortality risk is high, especially in the first 3 months after the intervention, and often due to reduced LVEF and life-threatening VT/VF (Kaul et al, 1998;Rao et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Wearable cardioverter defibrillator after cardiac surgery: Analysis of real‐life data from patients at transient risk of sudden cardiac death

Elbayomi

Weyand

Seitz

et al. 2023

Noninvasive Electrocardiol

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BackgroundEspecially in the rst 3 months after cardiac surgery, patients are at transient risk of sudden cardiac death (SCD). To close the gap between hospital discharge and the nal implantable cardioverter-de brillator (ICD) decision, guidelines recommend the temporary use of a wearable cardioverter-de brillator (WCD) to protect these patients from SCD. We investigated real-life data on the safety, effectiveness, and compliance of the WCD in this population. MethodsData for analysis were collected via the Zoll Patient Management Network (ZPM) from patients who underwent cardiac surgery and who were discharged with a WCD between 2018 and 2021 at the Cardiac Surgery Center of the University of Erlangen in Germany. ResultsThe majority of the 55 patients were male (90.9%) and underwent a coronary artery bypass graft (80.0%). The number of patients with left ventricular ejection fraction (LVEF) > 35% increased from 9.1% at the beginning of WCD use to 58.2% at the end of WCD use. 6 ventricular tachycardia (VT) episodes occurred in 4 patients. 2 patients with VT episodes were appropriately de brillated by the WCD. There were no inadequate shocks and no fatalities during the observation time. WCD wearing compliance was high with a median wear time of 23.3 hours/day. ConclusionThis retrospective analysis in a single cardiac surgery center con rms prior data on safety and effectiveness of the WCD in patients in post-surgery care in a real-life setting. The WCD successfully protected patients from SCD during life-threatening VT episodes. WCD wearing compliance was high.

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“…The amorphous oxide semiconductor (AOS), indium gallium zinc oxide (IGZO) has also been demonstrated as active layer for memristors due to its great potential for 1T1M integration. [28][29][30][31][32][33][34][35][36] IGZO is often employed on TFTs in the display technology [37,38] as the semiconductor layer due to its excellent stability, cost-efficient manufacturing, and the additional control on its electrical conductivity provided by the oxygen and cation composition. [39] In fact, the development of neuromorphic displays is the unavoidable new trend for system-on-panel applications.…”

Section: Introductionmentioning

confidence: 99%

Flexible Active Crossbar Arrays Using Amorphous Oxide Semiconductor Technology toward Artificial Neural Networks Hardware

Pereira

Deuermeier

Figueiredo

et al. 2022

Adv Elect Materials

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Memristor crossbar arrays can compose the efficient hardware for artificial intelligent applications. However, the requirements for a linear and symmetric synaptic weight update and low cycle‐to‐cycle (C2C) and device‐to‐device variability as well as the sneak‐path current issue have been delaying its further development. This study reports on a thin‐film amorphous oxide‐based 4×4 1‐transistor 1‐memristor (1T1M) crossbar. The a‐IGZO crossbar is built on a flexible polyimide substrate, enabling IoT and wearable applications. In the novel framework, the thin‐film transistor and memristor are fabricated at the same level, with the same processing steps and sharing the same materials for all layers. The 1T1M cells show linear and symmetrical plasticity characteristic with low C2C variability. The memristor performs like an analog dot product engine and vector–matrix multiplications in the 4×4 crossbars is demonstrated experimentally, in which the sneak‐path current issue is successfully suppressed, resulting in a proof‐of‐concept for a cost‐effective, flexible artificial neural networks hardware.

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The VERITAS-Stellar Intensity Interferometry (VSII) survey of Stellar Diameters

Abstract: Matthews a,d on behalf of the VERITAS Collaboration

Cited by 1,065 publications

References 2 publications

Formic Acid to Power towards Low‐Carbon Economy

Formic Acid to Power towards Low‐Carbon Economy

Wearable cardioverter defibrillator after cardiac surgery: Analysis of real‐life data from patients at transient risk of sudden cardiac death

Flexible Active Crossbar Arrays Using Amorphous Oxide Semiconductor Technology toward Artificial Neural Networks Hardware

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