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1. An Anti-Anti-Turbulence Conjecture

   Dewar, W; Deremble, B (January 2021, Ocean and Coastal Research)

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2. An Anti-Anti-Turbulence Conjecture

   Dewar, W; Deremble, B (January 2021, Ocean and Coastal Research)

   null (Ed.)

   Sandstrom's theorem suggested that buoyancy fluxes can not drive the overturning circulation, an idea that physical oceanographers continue to debate. This paper attempts to provide the most fundamental examination of Sandstrom's theorem that is possible. We conclude that the fundamental role of buoyant forcing in the modern ocean is to damp the circulation, that buoyance fluxes drive significant levels of turbulence, that buoyant turbulent generation is not solely proportional to molecular diffusivity and that some of the main pathways to turbulence are non-Boussineq. We conjecture that the ocean might not be constrained by the `Anti-Turbulence' theorem. 

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3. Scratch-resistant sapphire nanostructures with anti-glare, anti-fogging, and anti-dust properties

   https://doi.org/10.1039/d4mh01844c  

   Chien, Kun-Chieh; Kepenekci, Mehmet; Tunell, Andrew; Chang, Chih-Hao (March 2025, Materials Horizons)

   Although there has been significant interest in the novel material properties of bio-inspired nanostructures, engineering them to become mechanically durable remains a significant challenge. This work demonstrates the fabrication of sapphire nanostructures with anti-glare, anti-fogging, anti-dust and scratch-resistant properties. The fabricated nanostructures demonstrated a period of 330 nm and an aspect ratio of 2.1, the highest reported for sapphire thus far. The nanostructured sapphire sample exhibited broadband and omnidirectional antireflection properties, with an enhanced transmission of up to 95.8% at a wavelength of 1360 nm. The sapphire nanostructures also exhibited enhanced wetting performance and could mitigate fogging from water condensation or repel water droplets. Furthermore, owing to their sharp features, the fabricated structures could prevent particulate adhesion and maintain a 98.7% dust-free surface area solely using gravity. Furthermore, nanoindentation and scratch tests indicated that the sapphire nanostructures have an indentation modulus and hardness of 182 GPa and 3.7 GPa, respectively, which are similar to those of bulk glass and scratch-resistant metals such as tungsten. These sapphire nanostructures can be fabricated using high-throughput nanomanufacturing techniques and can find applications in scratch-resistant optics for photonics, electronic displays, and protective windows. 

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4. Uplifting anti-D6-brane

   https://doi.org/10.1007/JHEP12(2019)171  

   Cribiori, Niccolò; Kallosh, Renata; Roupec, Christoph; Wrase, Timm (December 2019, Journal of High Energy Physics)

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5. Anti‐Oxygen Leaking LiCoO2

   Soroosh Sharifi‐Asl, Fernando A (January 2019, Advanced functional materials)

   LiCoO2 is a prime example of widely used cathodes that suffer from the structural/thermal instability issues that lead to the release of their lattice oxygen under nonequilibrium conditions and safety concerns in Li‐ion batteries. Here, it is shown that an atomically thin layer of reduced graphene oxide can suppress oxygen release from LixCoO2 particles and improve their structural stability. Electrochemical cycling, differential electrochemical mass spectroscopy, differential scanning calorimetry, and in situ heating transmission electron microscopy are performed to characterize the effectiveness of the graphene‐coating on the abusive tolerance of LixCoO2. Electrochemical cycling mass spectroscopy results suggest that oxygen release is hindered at high cutoff voltage cycling when the cathode is coated with reduced graphene oxide. Thermal analysis, in situ heating transmission electron microscopy, and electron energy loss spectroscopy results show that the reduction of Co species from the graphene‐coated samples is delayed when compared with bare cathodes. Finally, density functional theory and ab initio molecular dynamics calculations show that the rGO layers could suppress O2 formation more effectively due to the strong Co cathode bond formation at the interface of rGO/LCO where low coordination oxygens exist. This investigation uncovers a reliable approach for hindering the oxygen release reaction and improving the thermal stability of battery cathodes. 

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