Results 41 to 50 of about 79,019 (293)

Implementation of arbitrary polyhedral elements for automatic dynamic analyses of three-dimensional structures

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
doaj   +1 more source

Approximation of corner polyhedra with families of intersection cuts

, 2017
We study the problem of approximating the corner polyhedron using intersection cuts derived from families of lattice-free sets in $\mathbb{R}^n$. In particular, we look at the problem of characterizing families that approximate the corner polyhedron up ...
A Basu, A Basu, G Averkov, G Zambelli, K Andersen, K Andersen, M Conforti, R Meyer, R Schneider, RE Gomory, SS Dey, V Borozan, Y Awate   +12 more
core   +1 more source

Computational Geometry Column 35 [PDF]

, 1998
The subquadratic algorithm of Kapoor for finding shortest paths on a polyhedron is ...
O'Rourke, Joseph
core   +5 more sources

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

Andreev's Theorem on hyperbolic polyhedra [PDF]

, 2006
In 1970, E. M. Andreev published a classification of all three-dimensional compact hyperbolic polyhedra having non-obtuse dihedral angles. Given a combinatorial description of a polyhedron, $C$, Andreev's Theorem provides five classes of linear ...
Dunbar, William D., Hubbard, John H., Roeder, Roland K. W.   +2 more
core   +3 more sources

Tailoring Redox Active Sites with Dual‐Interfacial Electric Fields for Concurrent Photocatalytic Biomass Valorization and H2 Production

Advanced Functional Materials, EarlyView.
A rationally engineered bifunctional photocatalyst is reported, which achieves simultaneous selective oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐diformylfuran (DFF) and efficient H2 evolution. By precisely positioning Au and Co3O4 on Zn3In2S6 nanosheet, dual interfacial electric fields are well constructed to spatially separate ...
Shiqing Li, Sugang Meng, Huijun Zhang, Alain R. Puente‐Santiago, Zhongliao Wang, Shifu Chen, Mario J. Muñoz‐Batista, Yu‐Ming Zheng, Bo Weng   +8 more
wiley   +1 more source

Using In Situ TEM to Understand the Surfaces of Electrocatalysts at Reaction Conditions: Single‐Atoms to Nanoparticles

Advanced Functional Materials, EarlyView.
This review summarizes recent advances in closed‐cell in situ TEM strategies for accurate determination of the activity and stability of single‐atom catalyst systems during operation. Operando conditions causing dynamic changes of SAC systems are highlighted and we explain why ensemble average‐based optical techniques may benefit from the technological
Martin Ek, Soshan Cheong, Julie Cairney, Richard D. Tilley, Ingemar Persson   +4 more
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, A. V. Krasnyuk, A. D. Malyi, N. P. Bocharova   +3 more
doaj  

Development of scientific-based interactive multimedia with polyhedron material

Journal Focus Action of Research Mathematic
Penelitian 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, Muhammad Khoiril Akhyar, Nur Fadilatul Ilmiyah, Hatıra Günerhan   +3 more
doaj   +1 more source

Estimating lower probability bound of power system's capability to fully accommodate variable wind generation

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, Bingxu Zhai, Bingxu Zhai, Mengchen Liu, Feng Liu, Haibo Lan   +5 more
doaj   +1 more source