scholarly journals Correction to: Briquettes of acai seeds: characterization of the biomass and influence of the parameters of production temperature and pressure in the physical-mechanical and energy quality

Author(s):  
Paulo Renato Souza de Oliveira ◽  
Paulo Fernando Trugilho ◽  
Tiago Jose Pires de Oliveira
Author(s):  
S Bair

A thorough characterization of all viscous flow properties relevant to steady simple shear was carried out for five liquid lubricants of current interest to tribology. Shear stresses were generated to values significant to concentrated contact lubrication. Two types of non-Newtonian response were observed: shear-thinning as a power-law fluid and near rate-independence. Functions and parameters were obtained for the temperature and pressure dependence of the viscosity and of the time constant for the Carreau-Yasuda equation. Results are consistent with free volume and kinetic theory, but directly contradict many assumptions currently utilized for numerical simulation and for extracting rheological properties from contact measurements.


2015 ◽  
Vol 17 (21) ◽  
pp. 14054-14063 ◽  
Author(s):  
A.-A. Ludl ◽  
L. E. Bove ◽  
A. M. Saitta ◽  
M. Salanne ◽  
T. C. Hansen ◽  
...  

We analyze the structural evolution of quenched aqueous NaCl solutions under pressure up to 4 GPa.


2007 ◽  
Vol 544-545 ◽  
pp. 865-868 ◽  
Author(s):  
Chil Soon Lee ◽  
Dong Sik Bae

CoFe2O4 nanoparticles were prepared in ethylene glycol solution under mild temperature and pressure conditions by precipitation from metal nitrates. The average size of the synthesized CoFe2O4 nanoparticles was in the range of 5 to 10, and they were narrowly distributed in the crystalline phase. Their magnetic property was of superparamagnetic character at room temperature. The effect of synthesis parameters is discussed such as the pH of starting solutions and reaction temperature.


2014 ◽  
Vol 45 (8) ◽  
pp. 696-702 ◽  
Author(s):  
Linbo Shang ◽  
I-Ming Chou ◽  
R. C. Burruss ◽  
Ruizhong Hu ◽  
Xianwu Bi

2016 ◽  
Vol 99 ◽  
pp. 106-111 ◽  
Author(s):  
Yudong Shang ◽  
Tiehu Li ◽  
Hao Li ◽  
Alei Dang ◽  
Li Zhang ◽  
...  

2006 ◽  
Vol 324-325 ◽  
pp. 1297-1300 ◽  
Author(s):  
J.W. Kim ◽  
S.W. Kim ◽  
K.S. Park ◽  
J.K Lee ◽  
Byung Ik Kim ◽  
...  

Zinc titanate nanoparticles were prepared under high temperature and pressure conditions by precipitation from metal precursors with aqueous ammonium hydroxide. Zinc titanates powders were obtained in the temperature range of 180-230 for 4 h. The phase of synthesized particle with calcined at 800 for 2h. ZnTiO3, Zn2TiO4, Zn2Ti3O8, TiO2, ZnO. The average particle size and distribution of the synthesized zinc titanate nanoparticles were below 100 nm and narrow, respectively.


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