Theoretical calculation of the reduced viscosity of aqueous suspensions of charged spherical particles

2004 ◽  
Vol 42 (6) ◽  
pp. 1068-1074 ◽  
Author(s):  
Koji Nishida ◽  
Kohei Kiriyama ◽  
Toshiji Kanaya ◽  
Keisuke Kaji ◽  
Tsuneo Okubo
Keyword(s):  
Theoretical Calculation ◽  
Spherical Particles ◽  
Aqueous Suspensions ◽  
Reduced Viscosity

Theoretical calculation of reduced viscosity of polyelectrolyte solutions

Polymer ◽  
2001 ◽  
Vol 42 (21) ◽  
pp. 8657-8662 ◽  
Author(s):  
Koji Nishida ◽  
Keisuke Kaji ◽  
Toshiji Kanaya
Keyword(s):  
Theoretical Calculation ◽  
Reduced Viscosity ◽  
Polyelectrolyte Solutions

Theoretical calculation of uncertainty region for spherical particles based on a picket fence, quasi-monodisperse particles

2014 ◽  
Vol 25 (2) ◽  
pp. 524-529
Author(s):  
Hideto Yoshida ◽  
Hirosuke Sugasawa ◽  
Funihiro Fukui ◽  
Tetsuya Yamamoto ◽  
Hiroaki Masuda
Keyword(s):  
Theoretical Calculation ◽  
Spherical Particles ◽  
Monodisperse Particles ◽  
Uncertainty Region ◽  
Picket Fence

scholarly journals Nanocellulose from fractionated sulfite wood pulp

Cellulose ◽  
2020 ◽  
Vol 27 (16) ◽  
pp. 9325-9336
Author(s):  
Armin Winter ◽  
Benjamin Arminger ◽  
Stefan Veigel ◽  
Claudia Gusenbauer ◽  
Wolfgang Fischer ◽  
...  
Keyword(s):  
Production Process ◽  
Modulus Of Elasticity ◽  
Mechanical Performance ◽  
Wood Pulp ◽  
High Modulus ◽  
Paper Properties ◽  
Aqueous Suspensions ◽  
Reduced Viscosity ◽  
Fine Fibre ◽  
Sulfite Pulp

AbstractFine fibre fractions in wood pulp may contribute to advantageous paper properties, but in some instances their removal from pulp may be beneficial to the production process of certain paper grades. In order to study the suitability of fine fibre fractions for the production of nanocellulose as an alternative use option, sulfite pulp was fractionated and homogenised, and cellulose nanopapers were produced. Characterisation revealed that fine fibre fractions were more easily homogenised than long fibres. Aqueous suspensions of nanocellulose produced from fines showed remarkably reduced viscosity compared to nanocellulose derived from long fibres. Nanopapers produced from all nanocellulose variants showed roughly similar mechanical performance. Only nanopaper produced from primary fines-derived nanocellulose deviated in that it showed a comparably high modulus of elasticity at a low strain at failure. Overall, fine fibre fractions separated from wood pulp were found to be highly suitable for nanocellulose production.

STEM Study of Surface Plasmon Excitation in Small Spherical Particles

1990 ◽  
Vol 48 (2) ◽  
pp. 42-43
Author(s):  
Daniel UGARTE
Keyword(s):  
Energy Loss ◽  
Spherical Particles ◽  
Small Particles ◽  
Bulk Materials ◽  
Low Loss ◽  
Plasmon Excitation ◽  
Surface Modes ◽  
Surface Plasmon Excitation ◽  
Analytical Electron ◽  
Analytical Electron Microscope

Small particles exhibit chemical and physical behaviors substantially different from bulk materials. This is due to the fact that boundary conditions can induce specific constraints on the observed properties. As an example, energy loss experiments carried out in an analytical electron microscope, constitute a powerful technique to investigate the excitation of collective surface modes (plasmons), which are modified in a limited size medium. In this work a STEM VG HB501 has been used to study the low energy loss spectrum (1-40 eV) of silicon spherical particles [1], and the spatial localization of the different modes has been analyzed through digitally acquired energy filtered images. This material and its oxides have been extensively studied and are very well characterized, because of their applications in microelectronics. These particles are thus ideal objects to test the validity of theories developed up to now.Typical EELS spectra in the low loss region are shown in fig. 2 and energy filtered images for the main spectral features in fig. 3.

Analysis of electro- and thermophysical processes occurring during electrocontact baking of flour products.

2020 ◽  
Vol 29 (11) ◽  
pp. 50-55
Author(s):  
V.I. Maklyukov ◽  
◽  
E.O. Gerasimova ◽  
N. V. Labutina ◽  
E.N. Rogozkin ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Theoretical Calculation ◽  
Heat Balance ◽  
Electric Contact ◽  
Wheat Dough ◽  
Baking Process ◽  
Free Moisture ◽  
Contact Heating ◽  
The Heat Balance

The article considers the results of research conducted during electric contact heating of rye-wheat dough pieces. It is established that the electrical conductivity of the crumb dough does not depend on the total humidity of the material, but mainly on the amount of free moisture. Using the current and temperature graphs, you can imagine how free moisture changes during the baking process and the influence of the thermophysical and colloidal process on the change in the value of free moisture. Experimentally determined the amount of heat that is spent on baking 1 kg of bread. The accuracy of the theoretical calculation of this parameter in the heat balance of the baking chamber is confirmed.

Coagulation-condensation structure formation in aqueous suspensions of mixtures of sulfur and gypsum

2013 ◽  
Vol 0 (1) ◽  
pp. 122
Author(s):  
K. Toshtay ◽  
Kuanyshbek Mussabekov ◽  
S. Kumargaliyeva ◽  
С. Turganbay ◽  
Inal Bakhytkyzy
Keyword(s):  
Structure Formation ◽  
Aqueous Suspensions ◽  
Condensation Structure
Sign in / Sign up

Export Citation Format

Share Document