Results 231 to 240 of about 604,834 (284)

Machine‐Learning‐Assisted Design and Optimization of Single‐Atom Transition Metal‐Incorporated Carbon Quantum Dot Catalysts for Electrocatalytic Hydrogen Evolution Reaction

open access: yesCarbon Energy, EarlyView.
A novel strategy of rational design of transition metal‐based electrocatalyst by combining machine‐learning‐based catalyst optimization steps with experimental verification steps demonstrates that optimized single‐atom nickel incorporated carbon quantum dots presents outstanding electrocatalytic hydrogen production efficiency due to its higher carrier ...
Unbeom Baeck   +13 more
wiley   +1 more source

Electronic Conductive Metal–Organic Frameworks for Aqueous Rechargeable Zinc‐Ion Battery Cathodes: Design, Progress, and Prospects

open access: yesCarbon Energy, EarlyView.
Schematic of the working principle of aqueous ZIBs and the benefits of electronic conductive metal–organic frameworks (EC‐MOFs) as cathode materials. ABSTRACT Zinc‐ion batteries (ZIBs) have significant potential for advancements in energy storage systems owing to their high level of safety and theoretical capacity. However, ZIBs face several challenges,
Chuntao Yang, Youlin Xiang, Yingjian Yu
wiley   +1 more source

Noisy matrix completion for longitudinal data with subject‐ and time‐specific covariates

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract In this article, we consider the imputation of missing responses in a longitudinal dataset via matrix completion. We propose a fixed‐effect, longitudinal, low‐rank model that incorporates both subject‐specific and time‐specific covariates. To solve the optimization problem, a two‐step optimization algorithm is proposed, which provides good ...
Zhaohan Sun, Yeying Zhu, Joel A. Dubin
wiley   +1 more source

Metamer Mismatching Predicts Color Difference Ellipsoids

open access: yesColor Research &Application, EarlyView.
ABSTRACT It is well known that color‐discrimination thresholds vary throughout color space, as is easily observed from the familiar MacAdam ellipses plotted in chromaticity space. But why is this the case? Existing formulations of uniform color spaces (e.g., CIELAB, CIECAM02, CAM16‐UCS) and their associated color‐difference DE metrics are all models ...
Emitis Roshan, Brian Funt
wiley   +1 more source

Analysis of density matrix embedding theory around the non‐interacting limit

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
Abstract This article provides the first mathematical analysis of the Density Matrix Embedding Theory (DMET) method. We prove that, under certain assumptions, (i) the exact ground‐state density matrix is a fixed‐point of the DMET map for non‐interacting systems, (ii) there exists a unique physical solution in the weakly‐interacting regime, and (iii ...
Eric Cancès   +4 more
wiley   +1 more source

First‐order Sobolev spaces, self‐similar energies and energy measures on the Sierpiński carpet

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
Abstract For any p∈(1,∞)$p \in (1,\infty)$, we construct p$p$‐energies and the corresponding p$p$‐energy measures on the Sierpiński carpet. A salient feature of our Sobolev space is the self‐similarity of energy. An important motivation for the construction of self‐similar energy and energy measures is to determine whether or not the Ahlfors regular ...
Mathav Murugan, Ryosuke Shimizu
wiley   +1 more source

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