Results 41 to 50 of about 7,440 (255)
Advanced Materials, EarlyView.Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje +7 more
wiley +1 more source
Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond
Advanced Materials, EarlyView.Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang +4 more
wiley +1 more source
Development of scientific-based interactive multimedia with polyhedron material
Journal Focus Action of Research MathematicPenelitian ini bertujuan untuk mengembangkan multimedia interaktif berbasis saintifik dengan materi bangun ruang sisi datar. Lima langkah Model pengembangan ADDIE— Analysis, Design, Development, Implementation, dan Evaluation — digunakan sebagai prosedur
Rosa Fachma Rani +3 more
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Scientific Reports, 2022 The transition from the geometry to the mesh can be rather difficult, manual and time-consuming, especially for the large scale complex structures.
Lei Zhou, Jianbo Li, Gao Lin
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Euler's Polyhedron Formula [PDF]
Formalized Mathematics, 2008 where V , E, and F are, respectively, the number of vertices, edges, and faces of p. The formula was first stated in print by Euler in 1758 [11]. The proof given here is based on Poincare’s linear algebraic proof, stated in [17] (with a corrected proof in [18]), as adapted by Imre Lakatos in the latter’s Proofs and Refutations [15].
openaire +1 more source
Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities
Advanced Materials, EarlyView.This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen +7 more
wiley +1 more source
On the section of a convex polyhedron
Discrete Mathematics, 1995 Let \(P\) be a convex polyhedron in \(\mathbb{R}^3\), and \(E\) be a plane cutting \(P\). The authors establish the sharp inequality \[ \text{perimeter} (P \cap E) < {2 \over 3} L(P), \] where \(L(P)\) denotes the sum of the edge-lengths of \(P\). To prove the result, they project the polyhedron \(P\) orthogonally into the plane \(E\) and compare the ...
Peter Frankl +2 more
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A Family of Sodium Solid‐State Electrolytes Based on the NaGaxAl1‐xCl4 Solid Solution
Advanced Materials Interfaces, EarlyView.ABSTRACT Sodium‐based metal chloride solid electrolytes are promising for sodium solid‐state batteries due to their excellent oxidation stability, which, as shown for Li halides, can coexist with high ionic conductivity. To explore cationic substitution effects, we synthesized NaGaxAl1‐xCl4 (0 ≤ x ≤ 1) via ball milling and investigated structural and ...
Hao Guo, Matteo Bianchini
wiley +1 more source
SPATIAL MODELING OF SOLID-STATE REGULAR POLYHEDRA (SOLIDS OF PLATON) IN AUTOCAD SYSTEM
Nauka ta progres transportu, 2009 This article describes the technology of modeling regular polyhedra by graphic methods. The authors came to the conclusion that in order to create solid models of regular polyhedra the method of extrusion is best to use.
P. V. Bezditko +3 more
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The Journal of Engineering, 2019 As the penetration of wind generation increases, the uncertainty it brings has imposed great challenges to power system operation. To cope with the challenges, tremendous research work has been conducted, among which two aspects are of most importance ...
Bin Liu +5 more
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