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Abstract Motivated by the high-performance solid-state lithium batteries enabled by lithium superionic conductors, sodium superionic conductor materials have great potential to empower sodium batteries with high energy, low cost, and sustainability. A critical challenge lies in designing and discovering sodium superionic conductors with high ionic conductivities to enable the development of solid-state sodium batteries. Here, by studying the structures and diffusion mechanisms of Li-ion versus Na-ion conducting solids, we reveal the structural feature of face-sharing high-coordination sites for fast sodium-ion conductors. By applying this feature as a design principle, we discover a number of Na-ion conductors in oxides, sulfides, and halides. Notably, we discover a chloride-based family of Na-ion conductors NaxMyCl6 (M = La–Sm) with UCl3-type structure and experimentally validate with the highest reported ionic conductivity. Our findings not only pave the way for the future development of sodium-ion conductors for sodium batteries, but also consolidate design principles of fast ion-conducting materials for a variety of energy applications.

Pyogenic granuloma is tumor-like proliferation to a nonspecific infection. Clinically, pyogenic granuloma presents as sessile or pedunculated exophytic mass with a smooth or lobulated surface which has a tendency to bleed easily. These lesions tend to occur slightly more in females, frequently involving the gingiva of the maxillary region. Histologically, these lesions show an excessive proliferation of vascular type of connective tissue to a nonspecific infection. The most common treatment is surgical excision with eradication of local irritants. This case report describes a pyogenic granuloma on the labial mucosa in a 33-year-old male, discussing the clinical features and histopathologic features that distinguish this lesion from other similar oral mucosa lesions.

Reliability engineering in the process industry has received a lot of attention in recent years, and many tools and techniques are available, such as Reliability, Availability and Maintainability (RAM) modeling, Reliability Centered Maintenance (RCM), etc. This paper deals about a case study of a utility plant which is supplying compressed air to the aluminium smelter plant. The compressor has been identified for this study based on the business criticality. There are seven compressor installed in the plant. Each compressor has an integrated dryer unit and all are needed for the plant operation. Weak points have been identified based on RCM study. Each compressor has four failure modes in series and dryer has two failure modes in series. RBD has been created based on the reliability wise connection. The failure and repair distribution have been calculated based on maintenance log data using statistical models i.e. Life Data Analysis (LDA). This information has been used in RBD as block properties. Results of cost benefit analysis have been presented by comparing before and after implementation of strategic maintenance action/task based on RCM analysis. [ABSTRACT FROM AUTHOR]