Golden Ratio Butterflies

2021 ◽  
Vol 114 (11) ◽  
pp. 908
Author(s):  
Clarissa Grandi
Keyword(s):  
Flow Pattern ◽  
Golden Ratio ◽  
Central Importance ◽  
Odd Degree ◽  
Graphical Structure

This piece is a rumination on flow, pattern, and edges/transitions, focusing on polynomials of odd degree and overlaying/underlaying the flow of the graphical structure with a rainbow to suggest the central importance of queer visibility in mathematics.

Weaving the Rainbow (Odd I)

2021 ◽  
Vol 114 (10) ◽  
pp. 812
Author(s):  
Lucy Rycroft-Smith
Keyword(s):  
Flow Pattern ◽  
Central Importance ◽  
Odd Degree ◽  
Graphical Structure

This piece is a rumination on flow, pattern, and edges/transitions, focusing on polynomials of odd degree and overlaying/underlaying the flow of the graphical structure with a rainbow to suggest the central importance of queer visibility in mathematics.

Morphology and development of flow-pattern defect with extended nonagitated Secco etching

1994 ◽  
Vol 52 ◽  
pp. 868-869
Author(s):  
Y. Pan
Keyword(s):  
Flow Pattern ◽  
Silicon Crystal ◽  
Gate Oxide ◽  
Crystal Growth Rate ◽  
Etch Depth ◽  
Force Microscopy ◽  
Etch Pit ◽  
Float Zone ◽  
Atomic Force ◽  
Multiple Step

The D defect, which causes the degradation of gate oxide integrities (GOI), can be revealed by Secco etching as flow pattern defect (FPD) in both float zone (FZ) and Czochralski (Cz) silicon crystal or as crystal originated particles (COP) by a multiple-step SC-1 cleaning process. By decreasing the crystal growth rate or high temperature annealing, the FPD density can be reduced, while the D defectsize increased. During the etching, the FPD surface density and etch pit size (FPD #1) increased withthe etch depth, while the wedge shaped contours do not change their positions and curvatures (FIG.l).In this paper, with atomic force microscopy (AFM), a simple model for FPD morphology by non-crystallographic preferential etching, such as Secco etching, was established.One sample wafer (FPD #2) was Secco etched with surface removed by 4 μm (FIG.2). The cross section view shows the FPD has a circular saucer pit and the wedge contours are actually the side surfaces of a terrace structure with very small slopes. Note that the scale in z direction is purposely enhanced in the AFM images. The pit dimensions are listed in TABLE 1.

Ekottarika-?gama Discourse Without Parallels

2018 ◽  
Vol 35 (1-2) ◽  
pp. 125-134
Author(s):  
Anālayo Bhikkhu
Keyword(s):  
Main Topic ◽  
Pure Land ◽  
Central Importance ◽  
Oral Transmission

With the present paper I study and translate a discourse in the Ekottarika-?gama preserved in Chinese of which no parallel in other discourse collections is known. This situation relates to the wider issue of what significance to accord to the absence of parallels from the viewpoint of the early Buddhist oral transmission. The main topic of the discourse itself is perception of impermanence, which is of central importance in the early Buddhist scheme of the path for cultivating liberating insight. A description of the results of such practice in this Ekottarika-?gama discourse has a somewhat ambivalent formulation that suggests a possible relation to the notion of rebirth in the Pure Abodes, suddh?v?sa. This notion, attested in a P?li discourse, in turn might have provided a precedent for the aspiration, prominent in later Buddhist traditions, to be reborn in the Pure Land.

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