Comparative study on hydrostatic strain, stress and dislocation density of Al0.3Ga0.7N/GaN heterostructure before and after a-Si3N4 passivation

2015 ◽  
Author(s):  
Syed Mukulika Dinara ◽  
Sanjay Kr. Jana ◽  
Partha Mukhopadhyay ◽  
Saptarsi Ghosh ◽  
Sekhar Bhattacharya ◽  
...  
Keyword(s):  
Dislocation Density ◽  
Comparative Study ◽  
Before And After ◽  
Strain Stress ◽  
Hydrostatic Strain ◽  
Gan Heterostructure

Application of a Novel Collector DXS in Cassiterite Flotation

2013 ◽  
Vol 826 ◽  
pp. 14-19
Author(s):  
Yi Min Zhu ◽  
Yan Ping Yang ◽  
Wen Dan Wang ◽  
Yan Feng Li ◽  
Duo Zhen Ren ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Infrared Spectroscopy ◽  
Carboxylic Acid ◽  
Comparative Study ◽  
Hydroxamic Acid ◽  
Spectroscopy Analysis ◽  
Adsorption Mechanisms ◽  
Before And After ◽  
The Relationship

A comparative study on the collecting effect to cassiterite was studied using a new carboxylic acid modified collector DXS and traditional collector salicylaldehyde hydroxamic acid as collectors, respectively. In addition, the relationship between floatability of DXS and crystal structure of cassiterite was investigated. By means of infrared spectroscopy analysis of the cassiterite surface before and after adsorbing DXS molecules, the adsorption mechanisms of DXS on the surface of cassiterite were analyzed.Keywords: carboxylic acid modified collector DXS; cassiterite; flotation mechanism

Comparison of the Efficacy, Safety and Tolerability of Azithromycin and Co-Amoxiclav in the Treatment of Acute Periapical Abscesses

1998 ◽  
Vol 26 (5) ◽  
pp. 257-265 ◽  
Author(s):  
CF Adriaenssen
Keyword(s):  
Soft Tissue ◽  
Adverse Events ◽  
Comparative Study ◽  
Clinical Success ◽  
Point Scale ◽  
Once Daily ◽  
Significant Difference ◽  
Before And After ◽  
Dental Practices

The activity, safety and tolerability of the azalide azithromycin were compared with those of co-amoxiclav in the treatment of acute periapical abscesses in adults in an open, randomized, multicentre comparative study. Patients of either sex, recruited from 106 dental practices in Belgium, were aged between 18 and 75 years and had acute periapical abscesses not requiring drainage, confirmed by radiology. Azithromycin was administered as a 500-mg tablet orally once daily for 3 days ( n = 150) and co-amoxiclav as a 625-mg capsule three times daily, for 5–10 days ( n = 153). Both before and after treatment, masticatory pain, percussion pain, headache, and oedema and redness of soft tissue were graded on a four-point scale. Overall clinical success (cure plus improvement) was seen in 131/144 (91%) evaluable patients receiving azithromycin and in 142/148 (96%) receiving co-amoxiclav (difference not significant). There was no significant difference between the two groups in the incidence or severity of adverse events or in the number of discontinuations because of adverse events.

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