Results 141 to 150 of about 120,817 (245)
On the Age Distribution of Classical Cepheids in the Galaxy
ABSTRACT We revisit the problem of the positive correlation between age and Galactocentric distance seen in Galactic Classical Cepheids, which at first sight may seem counter‐intuitive in the context of inside‐out galaxy formation. To explain it, we use the Besançon Galaxy Model and a simulation of star particles in the Galactic disc coupled with ...
Friedrich Anders+5 more
wiley +1 more source
Scaling of Planar Sodium‐Nickel Chloride Battery Cells to 90 cm2 Active Area
Large planar Na β′′ alumina electrolytes are prepared by tape‐casting and die‐pressing. These ceramic electrolytes are used to prepare planar sodium‐nickel chloride cells with 90 cm2 active area, providing a high capacity of 7 Ah. Successful cell cycling is demonstrated at 300 °C at rates up to C/4 (20 mA cm−2) for a cumulative capacity of 3.6 Ah cm−2.
T. Lan+10 more
wiley +1 more source
Abstract Let (Mn,g)$(M^n,g)$ be a complete Riemannian manifold which is not isometric to Rn$\mathbb {R}^n$, has nonnegative Ricci curvature, Euclidean volume growth, and quadratic Riemann curvature decay. We prove that there exists a set G⊂(0,∞)$\mathcal {G}\subset (0,\infty)$ with density 1 at infinity such that for every V∈G$V\in \mathcal {G}$ there ...
Gioacchino Antonelli+2 more
wiley +1 more source
Beeswax Nanoemulsion for Consolidation and Hydrophobization of Canvases
A beeswax‐CNC/EHM composite system is developed for the consolidation and hydrophobization of canvases. The beeswax nanoemulsion is prepared using a spontaneous emulsification method based on the Ouzo effect. The interactions between CNC, EHM and beeswax resulted in a stable and uniform layer upon drying, synergistically providing both reinforcement ...
Yiming Jia+2 more
wiley +1 more source
The use of metallized glass‐based woven‐grids instead of metal foils as current collectors for LIBs leads to a significant reduction in metal usage by over 90 % and weight savings of more than 80 %, resulting in an 11 % increase in specific energy at the cell level. Abstract A novel class of resource‐efficient, woven‐glass‐grid current collectors (CCs)
Yen‐Ming Li+10 more
wiley +1 more source
Autopsy findings in cases of fatal COVID‐19 vaccine‐induced myocarditis
Abstract COVID‐19 vaccines have been linked to myocarditis, which, in some circumstances, can be fatal. This systematic review aims to investigate potential causal links between COVID‐19 vaccines and death from myocarditis using post‐mortem analysis.
Nicolas Hulscher+3 more
wiley +1 more source
Use of virtual reality to engage undergraduate students in environmental field experiences
Abstract Field‐based experiences enhance cognitive and affective skill sets of undergraduate students. Although field‐based learning is a highly effective pedagogical modality, it is not accessible to all students, necessitating the development and evaluation of alternate modalities that convey equivalent benefits.
Elizabeth W. Stoner+6 more
wiley +1 more source
Comparison of Numerical Methods for Geometric Warpage Compensation
In the process of injection molding, shrinkage and warpage can lead to variations in the size and shape of produced parts compared to the cavity shape. Our research evaluated different algorithms for warpage compensation in injection molding. Our main finding was that the reverse geometry method consistently outperformed other tested algorithms on all ...
Steffen Tillmann+2 more
wiley +1 more source
A gradient soft‐hard integrated hybrid glass material was developed to address the challenge of integrating multiple mutually exclusive properties within a single material, especially the problem that polymer is soft but not hard, while glass is hard yet brittle.
Huiyang Lu+4 more
wiley +1 more source
Temporal response patterns of human gut microbiota to dietary fiber
In this study, 19 overweight participants, with or without type 2 diabetes mellitus, underwent 14 days of normal‐diet observation followed by 14 days of dietary fiber intervention. Fecal samples and continuous glucose monitoring data were collected daily throughout the 28‐day period.
Xiaotong Lin+5 more
wiley +1 more source