Experimental study of aluminum-, calcium-, and magnesium-acetate complexing at 80°C

1991 ◽  
Vol 55 (4) ◽  
pp. 955-964 ◽  
Author(s):  
Jeremy B. Fein
1997 ◽  
Vol 56 (3) ◽  
pp. 382-392 ◽  
Author(s):  
Kristen N. Bryant ◽  
A.Jason Fowlkes ◽  
S.Farhan Mustafa ◽  
Brianna J. O'neil ◽  
Anne C. Osterman ◽  
...  

2014 ◽  
Vol 955-959 ◽  
pp. 597-600
Author(s):  
Ding Yong Zhang ◽  
Guo Shun Qin ◽  
Tao Ma ◽  
Wei Li ◽  
Long Jiang Guo ◽  
...  

The performance of Xian-He scale inhibitor was evaluated by experiment study with the method of scaling ion balance. The results imply that both of the scale inhibitor show good antiscale performance. The amount of calcium and magnesium ions decreased obviously and the scaling reduces. When the scale inhibitor NO.1 was added into the sample by 9ml/L, calcium and magnesium ions content was high and basically remained unchanged. The best dosage of the scale inhibitor NO.2 is 12mL/L. As the temperature rise, the amount of calcium and magnesium ions is declining. With the same dosage, the amount of calcium and magnesium ions in the sample of the scale inhibitor NO.1 is higher than that in the sample of the scale inhibitor NO.2. Therefore, the performance of the scale inhibitor NO.1 is better than the scale inhibitor NO.2.


Author(s):  
Norio Baba ◽  
Norihiko Ichise ◽  
Syunya Watanabe

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.


1962 ◽  
Vol 5 (4) ◽  
pp. 387-394 ◽  
Author(s):  
Bruce Quarrington ◽  
Jerome Conway ◽  
Nathan Siegel
Keyword(s):  

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