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On characterizing ribbons and finding skewed symmetries

✍ Scribed by Jean Ponce

Publisher
Elsevier Science
Year
1990
Weight
86 KB
Volume
52
Category
Article
ISSN
0734-189X

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πŸ“œ SIMILAR VOLUMES

On characterizing ribbons and finding sk
On characterizing ribbons and finding skewed symmetries
✍ Jean Ponce πŸ“‚ Article πŸ“… 1990 πŸ› Elsevier Science βš– 725 KB

Following Rosenfeld, we compare Blum, Brooks, and Brady ribbons. We prove that Blum and Brady ribbons are not, in general, Brooks ribbons. Conversely, we prove that Brooks ribbons are, in general, neither Blum nor Brady ribbons. For Blum and Brady ribbons, it is in principle trivial to decide whethe

On finding the axes of skewed symmetry u
On finding the axes of skewed symmetry using the image normalization with moment
✍ Toshinori Yoshikawa; Izumi Iida πŸ“‚ Article πŸ“… 1993 πŸ› John Wiley and Sons 🌐 English βš– 708 KB

## Abstract Among the reconstruction methods for three‐dimensional information, methods are known for extracting the axes of skewed symmetry that place constraints on the orientation of the plane in space. Since skewed symmetry loses the symmetric nature for the most part, the many earlier methods

Quasi-one dimensional Er3+–Yb3+ codoped
Quasi-one dimensional Er3+–Yb3+ codoped single-crystal MoO3 ribbons: Synthesis, characterization and up-conversion luminescence
✍ Bin Dong; Zi-An Li; Baosheng Cao; Naisen Yu; Mengtao Sun πŸ“‚ Article πŸ“… 2011 πŸ› Elsevier Science 🌐 English βš– 692 KB

The quasi-one dimensional (Q1D) Er 3+ -Yb 3+ codoped single-crystal MoO 3 ribbons with width range from 1 to 5 ΞΌm, and maximum length about 30 ΞΌm have been synthesized by the vapor transport method. The samples were characterized using X-ray diffraction, scanning electron microscopy, transmission el