Results 61 to 70 of about 79,019 (293)

Determining All Universal Tilers

, 2011
A universal tiler is a convex polyhedron whose every cross-section tiles the plane. In this paper, we introduce a certain slight-rotating operation for cross-sections of pentahedra.
B. Grünbaum, David G. L. Wang, J. Akiyama, M.D. Hirschhorn, P. Brass, T. Sugimoto   +5 more
core   +1 more source

Role of Polyhedron Unit in Distinct Photophysics of Zero-Dimensional Organic–Inorganic Hybrid Tin Halide Compounds [PDF]

, 2021
Xiaoyu Liu, Yuanyuan Li, Tianyuan Liang, Jiyang Fan   +3 more
openalex   +1 more source

Frontier Advances of Emerging High‐Entropy Anodes in Alkali Metal‐Ion Batteries

Advanced Functional Materials, EarlyView.
Recent advances in microscopic morphology control of high‐entropy anode materials for alkali metal‐ion batteries. Abstract With the growing demand for sustainable energy, portable energy storage systems have become increasingly critical. Among them, the development of rechargeable batteries is primarily driven by breakthroughs in electrode materials ...
Liang Du, Kaidi Zhang, Liang Wang, Di Zhao, Mengqing Hu, Mingli Li, Ming Zhou, Zhenzhen Wu, Mengyang Dong, Bo Fu, Porun Liu, Yun Wang, Hongxia Wang, Yuantong Gu, Lei Zhang   +14 more
wiley   +1 more source

Pembelajaran Luas Permukaan Bangun Ruang Sisi Datar Menggunakan Pendekatan Pendidikan Matematika Realistik Indonesia

Jurnal Elemen, 2020
One of the geometry subjects that has a high level of difficulty and abstractness is the 3D-shape subject (solid geometry), especially the surface area of a polyhedron.
Siti Maisyarah, Rully Charitas Indra Prahmana   +1 more
doaj  

On the properties of the concave antiprisms of second sort [PDF]

FME Transactions, 2013
The paper examines geometrical, static and dynamic properties of the polyhedral structures obtained by folding and creasing the two-rowed segment of equilateral triangular net.
Obradović Marija, Popkonstantinović B., Mišić S.   +2 more
doaj  

Vizualizing of semi-regular polyhedrons in AutoCAD environment

Structural Mechanics of Engineering Constructions and Buildings, 2019
The paper examines the automated formation by the kinematic method of the surfaces of Archimedes' semi-regular polyhedra of three forms: truncated tetrahedron, truncated octahedron and truncated icosahedron.
Viktoryna A. Romanova
doaj   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

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, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Photoaccumulation of Long‐Lived Reactive Electrons in a Microporous Ti(IV) Oxocluster‐Based Metal–Organic Framework for Light and Dark Photocatalysis

Advanced Materials, EarlyView.
The microporous Ti12 oxocluster‐based MOF MIP‐177(Ti)‐LT exhibits effective charge separation and long‐lived photogenerated electrons persisting for hours, as revealed by spectroscopy. These electrons cause reversible color changes and enable dark H2 evolution and water splitting, demonstrating remarkable electron storage and redox capability ...
Shilin Yao, Katrin Heinzerling, Sam A. J. Hillman, Filip Podjaski, Tianhao He, Alberto García‐Baldoví, Yasmine Baghdadi, Khaled Dassouki, Hermenegildo García, Salvador Eslava, Nathalie Steunou, Soranyel Gonzalez‐Carrero, Sergio Navalón, Georges Mouchaham, Christian Serre, James R. Durrant   +15 more
wiley   +1 more source

Calibration of DEM Polyhedron Model for Wheat Seed Based on Angle of Repose Test and Semi-Resolved CFD-DEM Coupling Simulation

Agriculture
The shape of particles is a critical determinant that significantly influences the accuracy of discrete element simulations. To reduce the discrepancies between the discrete element model of wheat seeds and the actual particle shapes, and to enhance the ...
Longbao Wang, Hanyu Yang, Zhinan Wang, Qingjie Wang, Caiyun Lu, Chao Wang, Jin He   +6 more
doaj   +1 more source

Robust Method for Position Measurement of Vertex of Polyhedron Using Shape from Focus

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2010
A robust measurement method for measuring the vertex position of a small polyhedron using 3D image processing is proposed. The shape from focus method is applied for obtaining 3D positions of surfaces of the polyhedron.
Takashi HARADA
doaj   +1 more source