Macrostructure and microphysics of Saturn's E-ring

1984 ◽  
Vol 75 ◽  
pp. 607-613 ◽  
Author(s):  
Kevin D. Pang ◽  
Charles C. Voge ◽  
Jack W. Rhoads

Abstract.All observed optical and infrared properties of Saturn's E-ring can be explained in terms of Mie scattering by a narrow size distribution of ice spheres of 2 - 2.5 micron diameter. The spherical shape of the ring particles and their narrow size distribution imply a molten (possibly volcanic) origin on Enceladus. The E-ring consists of many layers, possibly stratified by electrostatic levitation.

2001 ◽  
Vol 676 ◽  
Author(s):  
Yigal D. Blum ◽  
Nobuyuki Kambe ◽  
D. Brent MacQueen ◽  
Sujeet Kumar ◽  
Shiv Chiruvolu ◽  
...  

ABSTRACTA generic approach to chemically facilitate the interactions of nanoparticles with conventional polymers is developed to address the design and processing capability of inorganic-organic nanocomposites. This approach introduces homogeneity to the composite and can be used as a tailoring tool for microstructure architecture.Nanoparticles produced by NanoGram's technology are excellent for such nanocomposites. Their spherical shape and narrow size distribution assist in the processing of homogeneous blends. High loads of particles within a polymeric matrix can be achieved without losing homogeneity. Alternatively, the particles can be selectively attracted into desired domains.


RSC Advances ◽  
2015 ◽  
Vol 5 (11) ◽  
pp. 8345-8350 ◽  
Author(s):  
Jung Sang Cho ◽  
Kyeong Youl Jung ◽  
Yun Chan Kang

Two-step spray drying using a commercially available spray dryer was carried out to prepare YAG:Ce3+ phosphor particles. The two-step spray-drying process was a potential method for producing YAG:Ce3+ phosphor particles with spherical shape, narrow size distribution, and good luminescence properties.


Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1003
Author(s):  
Pantharee Kongsat ◽  
Sakprayut Sinthupinyo ◽  
Edgar A. O’Rear ◽  
Thirawudh Pongprayoon

Several types of hematite nanoparticles (α-Fe2O3) have been investigated for their effects on the structure and properties of fly ash (FA) blended cement. All synthesized nanoparticles were found to be of spherical shape, but of different particle sizes ranging from 10 to 195 nm depending on the surfactant used in their preparation. The cement hydration with time showed 1.0% α-Fe2O3 nanoparticles are effective accelerators for FA blended cement. Moreover, adding α-Fe2O3 nanoparticles in FA blended cement enhanced the compressive strength and workability of cement. Nanoparticle size and size distribution were important for optimal filling of various size of pores within the cement structure.


2017 ◽  
Vol 28 (5) ◽  
pp. 568-568
Author(s):  
Sarit Cohen ◽  
Inna Laitman ◽  
Tammy Lublin Tennenbaum ◽  
Michal Natan ◽  
Ehud Banin ◽  
...  

2000 ◽  
Vol 39 (Part 2, No. 12A) ◽  
pp. L1245-L1248 ◽  
Author(s):  
Koichi Yamaguchi ◽  
Kunihiko Yujobo ◽  
Toshiyuki Kaizu

2017 ◽  
Vol 5 (47) ◽  
pp. 24836-24841 ◽  
Author(s):  
Luhong Fu ◽  
Gongzhen Cheng ◽  
Wei Luo

Monodisperse IrNiFe alloy nanoparticles with an average diameter of 2.2 nm have been synthesized by a colloidal synthetic method. By taking advantage of the synergistic effect between Ir, Ni and Fe and the ultrasmall NPs with narrow size distribution, the as-synthesized IrNiFe catalyst exhibits superior HER/OER performances in acidic media.


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